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) == 0) {
 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                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 393                 error = ENOENT;
 394                 goto out;
 395         }
 396         SCTP_TCB_UNLOCK(stcb);
 397         /*
 398          * We use the write lock here, only since in the error leg we need
 399          * it. If we used RLOCK, then we would have to
 400          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 401          * Better to use higher wlock.
 402          */
 403         SCTP_INP_WLOCK(inp);
 404 cred_can_cont:
 405         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 406         if (error) {
 407                 SCTP_INP_WUNLOCK(inp);
 408                 goto out;
 409         }
 410         cru2x(inp->sctp_socket->so_cred, &xuc);
 411         SCTP_INP_WUNLOCK(inp);
 412         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 413 out:
 414         return (error);
 415 }
 416
 417 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 418     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 419
 420
 421 #ifdef INET
 422 static void
 423 sctp_abort(struct socket *so)
 424 {
 425         struct sctp_inpcb *inp;
 426         uint32_t flags;
 427
 428         inp = (struct sctp_inpcb *)so->so_pcb;
 429         if (inp == NULL) {
 430                 return;
 431         }
 432 sctp_must_try_again:
 433         flags = inp->sctp_flags;
 434 #ifdef SCTP_LOG_CLOSING
 435         sctp_log_closing(inp, NULL, 17);
 436 #endif
 437         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 438             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 439 #ifdef SCTP_LOG_CLOSING
 440                 sctp_log_closing(inp, NULL, 16);
 441 #endif
 442                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 443                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 444                 SOCK_LOCK(so);
 445                 SCTP_SB_CLEAR(so->so_snd);
 446                 /*
 447                  * same for the rcv ones, they are only here for the
 448                  * accounting/select.
 449                  */
 450                 SCTP_SB_CLEAR(so->so_rcv);
 451
 452                 /* Now null out the reference, we are completely detached. */
 453                 so->so_pcb = NULL;
 454                 SOCK_UNLOCK(so);
 455         } else {
 456                 flags = inp->sctp_flags;
 457                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 458                         goto sctp_must_try_again;
 459                 }
 460         }
 461         return;
 462 }
 463
 464 static int
 465 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 466 {
 467         struct sctp_inpcb *inp;
 468         struct inpcb *ip_inp;
 469         int error;
 470         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 471
 472         inp = (struct sctp_inpcb *)so->so_pcb;
 473         if (inp != NULL) {
 474                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 475                 return (EINVAL);
 476         }
 477         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 478                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 479                 if (error) {
 480                         return (error);
 481                 }
 482         }
 483         error = sctp_inpcb_alloc(so, vrf_id);
 484         if (error) {
 485                 return (error);
 486         }
 487         inp = (struct sctp_inpcb *)so->so_pcb;
 488         SCTP_INP_WLOCK(inp);
 489         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 490         ip_inp = &inp->ip_inp.inp;
 491         ip_inp->inp_vflag |= INP_IPV4;
 492         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 493         SCTP_INP_WUNLOCK(inp);
 494         return (0);
 495 }
 496
 497 static int
 498 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 499 {
 500         struct sctp_inpcb *inp;
 501
 502         inp = (struct sctp_inpcb *)so->so_pcb;
 503         if (inp == NULL) {
 504                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 505                 return (EINVAL);
 506         }
 507         if (addr != NULL) {
 508                 if ((addr->sa_family != AF_INET) ||
 509                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 510                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 511                         return (EINVAL);
 512                 }
 513         }
 514         return (sctp_inpcb_bind(so, addr, NULL, p));
 515 }
 516
 517 #endif
 518 void
 519 sctp_close(struct socket *so)
 520 {
 521         struct sctp_inpcb *inp;
 522         uint32_t flags;
 523
 524         inp = (struct sctp_inpcb *)so->so_pcb;
 525         if (inp == NULL)
 526                 return;
 527
 528         /*
 529          * Inform all the lower layer assoc that we are done.
 530          */
 531 sctp_must_try_again:
 532         flags = inp->sctp_flags;
 533 #ifdef SCTP_LOG_CLOSING
 534         sctp_log_closing(inp, NULL, 17);
 535 #endif
 536         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 537             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 538                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 539                     (so->so_rcv.sb_cc > 0)) {
 540 #ifdef SCTP_LOG_CLOSING
 541                         sctp_log_closing(inp, NULL, 13);
 542 #endif
 543                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 544                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 545                 } else {
 546 #ifdef SCTP_LOG_CLOSING
 547                         sctp_log_closing(inp, NULL, 14);
 548 #endif
 549                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 550                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 551                 }
 552                 /*
 553                  * The socket is now detached, no matter what the state of
 554                  * the SCTP association.
 555                  */
 556                 SOCK_LOCK(so);
 557                 SCTP_SB_CLEAR(so->so_snd);
 558                 /*
 559                  * same for the rcv ones, they are only here for the
 560                  * accounting/select.
 561                  */
 562                 SCTP_SB_CLEAR(so->so_rcv);
 563
 564                 /* Now null out the reference, we are completely detached. */
 565                 so->so_pcb = NULL;
 566                 SOCK_UNLOCK(so);
 567         } else {
 568                 flags = inp->sctp_flags;
 569                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 570                         goto sctp_must_try_again;
 571                 }
 572         }
 573         return;
 574 }
 575
 576
 577 int
 578 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 579     struct mbuf *control, struct thread *p);
 580
 581
 582 int
 583 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 584     struct mbuf *control, struct thread *p)
 585 {
 586         struct sctp_inpcb *inp;
 587         int error;
 588
 589         inp = (struct sctp_inpcb *)so->so_pcb;
 590         if (inp == NULL) {
 591                 if (control) {
 592                         sctp_m_freem(control);
 593                         control = NULL;
 594                 }
 595                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 596                 sctp_m_freem(m);
 597                 return (EINVAL);
 598         }
 599         /* Got to have an to address if we are NOT a connected socket */
 600         if ((addr == NULL) &&
 601             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 602             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 603                 goto connected_type;
 604         } else if (addr == NULL) {
 605                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 606                 error = EDESTADDRREQ;
 607                 sctp_m_freem(m);
 608                 if (control) {
 609                         sctp_m_freem(control);
 610                         control = NULL;
 611                 }
 612                 return (error);
 613         }
 614 #ifdef INET6
 615         if (addr->sa_family != AF_INET) {
 616                 /* must be a v4 address! */
 617                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 618                 sctp_m_freem(m);
 619                 if (control) {
 620                         sctp_m_freem(control);
 621                         control = NULL;
 622                 }
 623                 error = EDESTADDRREQ;
 624                 return (error);
 625         }
 626 #endif                          /* INET6 */
 627 connected_type:
 628         /* now what about control */
 629         if (control) {
 630                 if (inp->control) {
 631                         SCTP_PRINTF("huh? control set?\n");
 632                         sctp_m_freem(inp->control);
 633                         inp->control = NULL;
 634                 }
 635                 inp->control = control;
 636         }
 637         /* Place the data */
 638         if (inp->pkt) {
 639                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 640                 inp->pkt_last = m;
 641         } else {
 642                 inp->pkt_last = inp->pkt = m;
 643         }
 644         if (
 645         /* FreeBSD uses a flag passed */
 646             ((flags & PRUS_MORETOCOME) == 0)
 647             ) {
 648                 /*
 649                  * note with the current version this code will only be used
 650                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 651                  * re-defining sosend to use the sctp_sosend. One can
 652                  * optionally switch back to this code (by changing back the
 653                  * definitions) but this is not advisable. This code is used
 654                  * by FreeBSD when sending a file with sendfile() though.
 655                  */
 656                 int ret;
 657
 658                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 659                 inp->pkt = NULL;
 660                 inp->control = NULL;
 661                 return (ret);
 662         } else {
 663                 return (0);
 664         }
 665 }
 666
 667 int
 668 sctp_disconnect(struct socket *so)
 669 {
 670         struct sctp_inpcb *inp;
 671
 672         inp = (struct sctp_inpcb *)so->so_pcb;
 673         if (inp == NULL) {
 674                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 675                 return (ENOTCONN);
 676         }
 677         SCTP_INP_RLOCK(inp);
 678         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 679             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 680                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 681                         /* No connection */
 682                         SCTP_INP_RUNLOCK(inp);
 683                         return (0);
 684                 } else {
 685                         struct sctp_association *asoc;
 686                         struct sctp_tcb *stcb;
 687
 688                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 689                         if (stcb == NULL) {
 690                                 SCTP_INP_RUNLOCK(inp);
 691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 692                                 return (EINVAL);
 693                         }
 694                         SCTP_TCB_LOCK(stcb);
 695                         asoc = &stcb->asoc;
 696                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 697                                 /* We are about to be freed, out of here */
 698                                 SCTP_TCB_UNLOCK(stcb);
 699                                 SCTP_INP_RUNLOCK(inp);
 700                                 return (0);
 701                         }
 702                         if (((so->so_options & SO_LINGER) &&
 703                             (so->so_linger == 0)) ||
 704                             (so->so_rcv.sb_cc > 0)) {
 705                                 if (SCTP_GET_STATE(asoc) !=
 706                                     SCTP_STATE_COOKIE_WAIT) {
 707                                         /* Left with Data unread */
 708                                         struct mbuf *err;
 709
 710                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 711                                         if (err) {
 712                                                 /*
 713                                                  * Fill in the user
 714                                                  * initiated abort
 715                                                  */
 716                                                 struct sctp_paramhdr *ph;
 717
 718                                                 ph = mtod(err, struct sctp_paramhdr *);
 719                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 720                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 721                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 722                                         }
 723                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 724                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 725                                 }
 726                                 SCTP_INP_RUNLOCK(inp);
 727                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 728                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 729                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 730                                 }
 731                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 732                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 733                                 /* No unlock tcb assoc is gone */
 734                                 return (0);
 735                         }
 736                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 737                             TAILQ_EMPTY(&asoc->sent_queue) &&
 738                             (asoc->stream_queue_cnt == 0)) {
 739                                 /* there is nothing queued to send, so done */
 740                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 741                                         goto abort_anyway;
 742                                 }
 743                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 744                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 745                                         /* only send SHUTDOWN 1st time thru */
 746                                         struct sctp_nets *netp;
 747
 748                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 749                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 750                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 751                                         }
 752                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 753                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 754                                         sctp_stop_timers_for_shutdown(stcb);
 755                                         if (stcb->asoc.alternate) {
 756                                                 netp = stcb->asoc.alternate;
 757                                         } else {
 758                                                 netp = stcb->asoc.primary_destination;
 759                                         }
 760                                         sctp_send_shutdown(stcb, netp);
 761                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 762                                             stcb->sctp_ep, stcb, netp);
 763                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 764                                             stcb->sctp_ep, stcb, netp);
 765                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 766                                 }
 767                         } else {
 768                                 /*
 769                                  * we still got (or just got) data to send,
 770                                  * so set SHUTDOWN_PENDING
 771                                  */
 772                                 /*
 773                                  * XXX sockets draft says that SCTP_EOF
 774                                  * should be sent with no data. currently,
 775                                  * we will allow user data to be sent first
 776                                  * and move to SHUTDOWN-PENDING
 777                                  */
 778                                 struct sctp_nets *netp;
 779
 780                                 if (stcb->asoc.alternate) {
 781                                         netp = stcb->asoc.alternate;
 782                                 } else {
 783                                         netp = stcb->asoc.primary_destination;
 784                                 }
 785
 786                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 787                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 788                                     netp);
 789                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 790                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 791                                 }
 792                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 793                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 794                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 795                                         struct mbuf *op_err;
 796
 797                         abort_anyway:
 798                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 799                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 800                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 801                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 802                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 803                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 804                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 805                                         }
 806                                         SCTP_INP_RUNLOCK(inp);
 807                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 808                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 809                                         return (0);
 810                                 } else {
 811                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 812                                 }
 813                         }
 814                         soisdisconnecting(so);
 815                         SCTP_TCB_UNLOCK(stcb);
 816                         SCTP_INP_RUNLOCK(inp);
 817                         return (0);
 818                 }
 819                 /* not reached */
 820         } else {
 821                 /* UDP model does not support this */
 822                 SCTP_INP_RUNLOCK(inp);
 823                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 824                 return (EOPNOTSUPP);
 825         }
 826 }
 827
 828 int
 829 sctp_flush(struct socket *so, int how)
 830 {
 831         /*
 832          * We will just clear out the values and let subsequent close clear
 833          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 834          * they will not be able to read the data, the socket will block
 835          * that from happening.
 836          */
 837         struct sctp_inpcb *inp;
 838
 839         inp = (struct sctp_inpcb *)so->so_pcb;
 840         if (inp == NULL) {
 841                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 842                 return (EINVAL);
 843         }
 844         SCTP_INP_RLOCK(inp);
 845         /* For the 1 to many model this does nothing */
 846         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 847                 SCTP_INP_RUNLOCK(inp);
 848                 return (0);
 849         }
 850         SCTP_INP_RUNLOCK(inp);
 851         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 852                 /*
 853                  * First make sure the sb will be happy, we don't use these
 854                  * except maybe the count
 855                  */
 856                 SCTP_INP_WLOCK(inp);
 857                 SCTP_INP_READ_LOCK(inp);
 858                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 859                 SCTP_INP_READ_UNLOCK(inp);
 860                 SCTP_INP_WUNLOCK(inp);
 861                 so->so_rcv.sb_cc = 0;
 862                 so->so_rcv.sb_mbcnt = 0;
 863                 so->so_rcv.sb_mb = NULL;
 864         }
 865         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 866                 /*
 867                  * First make sure the sb will be happy, we don't use these
 868                  * except maybe the count
 869                  */
 870                 so->so_snd.sb_cc = 0;
 871                 so->so_snd.sb_mbcnt = 0;
 872                 so->so_snd.sb_mb = NULL;
 873
 874         }
 875         return (0);
 876 }
 877
 878 int
 879 sctp_shutdown(struct socket *so)
 880 {
 881         struct sctp_inpcb *inp;
 882
 883         inp = (struct sctp_inpcb *)so->so_pcb;
 884         if (inp == NULL) {
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 886                 return (EINVAL);
 887         }
 888         SCTP_INP_RLOCK(inp);
 889         /* For UDP model this is a invalid call */
 890         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 891             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 892                 /* Restore the flags that the soshutdown took away. */
 893                 SOCKBUF_LOCK(&so->so_rcv);
 894                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 895                 SOCKBUF_UNLOCK(&so->so_rcv);
 896                 /* This proc will wakeup for read and do nothing (I hope) */
 897                 SCTP_INP_RUNLOCK(inp);
 898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 899                 return (EOPNOTSUPP);
 900         } else {
 901                 /*
 902                  * Ok, if we reach here its the TCP model and it is either a
 903                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 904                  * against it.
 905                  */
 906                 struct sctp_tcb *stcb;
 907                 struct sctp_association *asoc;
 908                 struct sctp_nets *netp;
 909
 910                 if ((so->so_state &
 911                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (ENOTCONN);
 914                 }
 915                 socantsendmore(so);
 916
 917                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 918                 if (stcb == NULL) {
 919                         /*
 920                          * Ok, we hit the case that the shutdown call was
 921                          * made after an abort or something. Nothing to do
 922                          * now.
 923                          */
 924                         SCTP_INP_RUNLOCK(inp);
 925                         return (0);
 926                 }
 927                 SCTP_TCB_LOCK(stcb);
 928                 asoc = &stcb->asoc;
 929                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 930                         SCTP_TCB_UNLOCK(stcb);
 931                         SCTP_INP_RUNLOCK(inp);
 932                         return (0);
 933                 }
 934                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 935                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 936                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 937                         /*
 938                          * If we are not in or before ESTABLISHED, there is
 939                          * no protocol action required.
 940                          */
 941                         SCTP_TCB_UNLOCK(stcb);
 942                         SCTP_INP_RUNLOCK(inp);
 943                         return (0);
 944                 }
 945                 if (stcb->asoc.alternate) {
 946                         netp = stcb->asoc.alternate;
 947                 } else {
 948                         netp = stcb->asoc.primary_destination;
 949                 }
 950                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 951                     TAILQ_EMPTY(&asoc->send_queue) &&
 952                     TAILQ_EMPTY(&asoc->sent_queue) &&
 953                     (asoc->stream_queue_cnt == 0)) {
 954                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 955                                 goto abort_anyway;
 956                         }
 957                         /* there is nothing queued to send, so I'm done... */
 958                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 959                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 960                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 961                         sctp_stop_timers_for_shutdown(stcb);
 962                         sctp_send_shutdown(stcb, netp);
 963                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 964                             stcb->sctp_ep, stcb, netp);
 965                 } else {
 966                         /*
 967                          * We still got (or just got) data to send, so set
 968                          * SHUTDOWN_PENDING.
 969                          */
 970                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 971                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 972                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 973                         }
 974                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 975                             TAILQ_EMPTY(&asoc->sent_queue) &&
 976                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 977                                 struct mbuf *op_err;
 978
 979                 abort_anyway:
 980                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 981                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 982                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 983                                     op_err, SCTP_SO_LOCKED);
 984                                 SCTP_INP_RUNLOCK(inp);
 985                                 return (0);
 986                         }
 987                 }
 988                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 989                 /*
 990                  * XXX: Why do this in the case where we have still data
 991                  * queued?
 992                  */
 993                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 994                 SCTP_TCB_UNLOCK(stcb);
 995                 SCTP_INP_RUNLOCK(inp);
 996                 return (0);
 997         }
 998 }
 999
1000 /*
1001  * copies a "user" presentable address and removes embedded scope, etc.
1002  * returns 0 on success, 1 on error
1003  */
1004 static uint32_t
1005 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1006 {
1007 #ifdef INET6
1008         struct sockaddr_in6 lsa6;
1009
1010         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1011             &lsa6);
1012 #endif
1013         memcpy(ss, sa, sa->sa_len);
1014         return (0);
1015 }
1016
1017
1018
1019 /*
1020  * NOTE: assumes addr lock is held
1021  */
1022 static size_t
1023 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1024     struct sctp_tcb *stcb,
1025     size_t limit,
1026     struct sockaddr_storage *sas,
1027     uint32_t vrf_id)
1028 {
1029         struct sctp_ifn *sctp_ifn;
1030         struct sctp_ifa *sctp_ifa;
1031         size_t actual;
1032         int loopback_scope;
1033 #if defined(INET)
1034         int ipv4_local_scope, ipv4_addr_legal;
1035 #endif
1036 #if defined(INET6)
1037         int local_scope, site_scope, ipv6_addr_legal;
1038 #endif
1039         struct sctp_vrf *vrf;
1040
1041         actual = 0;
1042         if (limit <= 0)
1043                 return (actual);
1044
1045         if (stcb) {
1046                 /* Turn on all the appropriate scope */
1047                 loopback_scope = stcb->asoc.scope.loopback_scope;
1048 #if defined(INET)
1049                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1050                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1051 #endif
1052 #if defined(INET6)
1053                 local_scope = stcb->asoc.scope.local_scope;
1054                 site_scope = stcb->asoc.scope.site_scope;
1055                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1056 #endif
1057         } else {
1058                 /* Use generic values for endpoints. */
1059                 loopback_scope = 1;
1060 #if defined(INET)
1061                 ipv4_local_scope = 1;
1062 #endif
1063 #if defined(INET6)
1064                 local_scope = 1;
1065                 site_scope = 1;
1066 #endif
1067                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1068 #if defined(INET6)
1069                         ipv6_addr_legal = 1;
1070 #endif
1071 #if defined(INET)
1072                         if (SCTP_IPV6_V6ONLY(inp)) {
1073                                 ipv4_addr_legal = 0;
1074                         } else {
1075                                 ipv4_addr_legal = 1;
1076                         }
1077 #endif
1078                 } else {
1079 #if defined(INET6)
1080                         ipv6_addr_legal = 0;
1081 #endif
1082 #if defined(INET)
1083                         ipv4_addr_legal = 1;
1084 #endif
1085                 }
1086         }
1087         vrf = sctp_find_vrf(vrf_id);
1088         if (vrf == NULL) {
1089                 return (0);
1090         }
1091         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1092                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1093                         if ((loopback_scope == 0) &&
1094                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1095                                 /* Skip loopback if loopback_scope not set */
1096                                 continue;
1097                         }
1098                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1099                                 if (stcb) {
1100                                         /*
1101                                          * For the BOUND-ALL case, the list
1102                                          * associated with a TCB is Always
1103                                          * considered a reverse list.. i.e.
1104                                          * it lists addresses that are NOT
1105                                          * part of the association. If this
1106                                          * is one of those we must skip it.
1107                                          */
1108                                         if (sctp_is_addr_restricted(stcb,
1109                                             sctp_ifa)) {
1110                                                 continue;
1111                                         }
1112                                 }
1113                                 switch (sctp_ifa->address.sa.sa_family) {
1114 #ifdef INET
1115                                 case AF_INET:
1116                                         if (ipv4_addr_legal) {
1117                                                 struct sockaddr_in *sin;
1118
1119                                                 sin = &sctp_ifa->address.sin;
1120                                                 if (sin->sin_addr.s_addr == 0) {
1121                                                         /*
1122                                                          * we skip
1123                                                          * unspecifed
1124                                                          * addresses
1125                                                          */
1126                                                         continue;
1127                                                 }
1128                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1129                                                     &sin->sin_addr) != 0) {
1130                                                         continue;
1131                                                 }
1132                                                 if ((ipv4_local_scope == 0) &&
1133                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1134                                                         continue;
1135                                                 }
1136 #ifdef INET6
1137                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1138                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1139                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1140                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1141                                                         actual += sizeof(struct sockaddr_in6);
1142                                                 } else {
1143 #endif
1144                                                         memcpy(sas, sin, sizeof(*sin));
1145                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1146                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1147                                                         actual += sizeof(*sin);
1148 #ifdef INET6
1149                                                 }
1150 #endif
1151                                                 if (actual >= limit) {
1152                                                         return (actual);
1153                                                 }
1154                                         } else {
1155                                                 continue;
1156                                         }
1157                                         break;
1158 #endif
1159 #ifdef INET6
1160                                 case AF_INET6:
1161                                         if (ipv6_addr_legal) {
1162                                                 struct sockaddr_in6 *sin6;
1163
1164                                                 sin6 = &sctp_ifa->address.sin6;
1165                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1166                                                         /*
1167                                                          * we skip
1168                                                          * unspecifed
1169                                                          * addresses
1170                                                          */
1171                                                         continue;
1172                                                 }
1173                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1174                                                     &sin6->sin6_addr) != 0) {
1175                                                         continue;
1176                                                 }
1177                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1178                                                         if (local_scope == 0)
1179                                                                 continue;
1180                                                         if (sin6->sin6_scope_id == 0) {
1181                                                                 if (sa6_recoverscope(sin6) != 0)
1182                                                                         /*
1183                                                                          *
1184                                                                          * bad
1185                                                                          * link
1186                                                                          *
1187                                                                          * local
1188                                                                          *
1189                                                                          * address
1190                                                                          */
1191                                                                         continue;
1192                                                         }
1193                                                 }
1194                                                 if ((site_scope == 0) &&
1195                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1196                                                         continue;
1197                                                 }
1198                                                 memcpy(sas, sin6, sizeof(*sin6));
1199                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1200                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1201                                                 actual += sizeof(*sin6);
1202                                                 if (actual >= limit) {
1203                                                         return (actual);
1204                                                 }
1205                                         } else {
1206                                                 continue;
1207                                         }
1208                                         break;
1209 #endif
1210                                 default:
1211                                         /* TSNH */
1212                                         break;
1213                                 }
1214                         }
1215                 }
1216         } else {
1217                 struct sctp_laddr *laddr;
1218
1219                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1220                         if (stcb) {
1221                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1222                                         continue;
1223                                 }
1224                         }
1225                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1226                                 continue;
1227                         switch (laddr->ifa->address.sa.sa_family) {
1228 #ifdef INET
1229                         case AF_INET:
1230                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1231                                 break;
1232 #endif
1233 #ifdef INET6
1234                         case AF_INET6:
1235                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1236                                 break;
1237 #endif
1238                         default:
1239                                 /* TSNH */
1240                                 break;
1241                         }
1242                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1243                             laddr->ifa->address.sa.sa_len);
1244                         actual += laddr->ifa->address.sa.sa_len;
1245                         if (actual >= limit) {
1246                                 return (actual);
1247                         }
1248                 }
1249         }
1250         return (actual);
1251 }
1252
1253 static size_t
1254 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1255     struct sctp_tcb *stcb,
1256     size_t limit,
1257     struct sockaddr_storage *sas)
1258 {
1259         size_t size = 0;
1260
1261         SCTP_IPI_ADDR_RLOCK();
1262         /* fill up addresses for the endpoint's default vrf */
1263         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1264             inp->def_vrf_id);
1265         SCTP_IPI_ADDR_RUNLOCK();
1266         return (size);
1267 }
1268
1269 /*
1270  * NOTE: assumes addr lock is held
1271  */
1272 static int
1273 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1274 {
1275         int cnt = 0;
1276         struct sctp_vrf *vrf = NULL;
1277
1278         /*
1279          * In both sub-set bound an bound_all cases we return the MAXIMUM
1280          * number of addresses that you COULD get. In reality the sub-set
1281          * bound may have an exclusion list for a given TCB OR in the
1282          * bound-all case a TCB may NOT include the loopback or other
1283          * addresses as well.
1284          */
1285         vrf = sctp_find_vrf(vrf_id);
1286         if (vrf == NULL) {
1287                 return (0);
1288         }
1289         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1290                 struct sctp_ifn *sctp_ifn;
1291                 struct sctp_ifa *sctp_ifa;
1292
1293                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1294                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1295                                 /* Count them if they are the right type */
1296                                 switch (sctp_ifa->address.sa.sa_family) {
1297 #ifdef INET
1298                                 case AF_INET:
1299 #ifdef INET6
1300                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1301                                                 cnt += sizeof(struct sockaddr_in6);
1302                                         else
1303                                                 cnt += sizeof(struct sockaddr_in);
1304 #else
1305                                         cnt += sizeof(struct sockaddr_in);
1306 #endif
1307                                         break;
1308 #endif
1309 #ifdef INET6
1310                                 case AF_INET6:
1311                                         cnt += sizeof(struct sockaddr_in6);
1312                                         break;
1313 #endif
1314                                 default:
1315                                         break;
1316                                 }
1317                         }
1318                 }
1319         } else {
1320                 struct sctp_laddr *laddr;
1321
1322                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1323                         switch (laddr->ifa->address.sa.sa_family) {
1324 #ifdef INET
1325                         case AF_INET:
1326 #ifdef INET6
1327                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1328                                         cnt += sizeof(struct sockaddr_in6);
1329                                 else
1330                                         cnt += sizeof(struct sockaddr_in);
1331 #else
1332                                 cnt += sizeof(struct sockaddr_in);
1333 #endif
1334                                 break;
1335 #endif
1336 #ifdef INET6
1337                         case AF_INET6:
1338                                 cnt += sizeof(struct sockaddr_in6);
1339                                 break;
1340 #endif
1341                         default:
1342                                 break;
1343                         }
1344                 }
1345         }
1346         return (cnt);
1347 }
1348
1349 static int
1350 sctp_count_max_addresses(struct sctp_inpcb *inp)
1351 {
1352         int cnt = 0;
1353
1354         SCTP_IPI_ADDR_RLOCK();
1355         /* count addresses for the endpoint's default VRF */
1356         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1357         SCTP_IPI_ADDR_RUNLOCK();
1358         return (cnt);
1359 }
1360
1361 static int
1362 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1363     size_t optsize, void *p, int delay)
1364 {
1365         int error = 0;
1366         int creat_lock_on = 0;
1367         struct sctp_tcb *stcb = NULL;
1368         struct sockaddr *sa;
1369         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1370         uint32_t vrf_id;
1371         int bad_addresses = 0;
1372         sctp_assoc_t *a_id;
1373
1374         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1375
1376         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1377             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1378                 /* We are already connected AND the TCP model */
1379                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1380                 return (EADDRINUSE);
1381         }
1382         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1383             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1384                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1385                 return (EINVAL);
1386         }
1387         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1388                 SCTP_INP_RLOCK(inp);
1389                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1390                 SCTP_INP_RUNLOCK(inp);
1391         }
1392         if (stcb) {
1393                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1394                 return (EALREADY);
1395         }
1396         SCTP_INP_INCR_REF(inp);
1397         SCTP_ASOC_CREATE_LOCK(inp);
1398         creat_lock_on = 1;
1399         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1400             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1401                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1402                 error = EFAULT;
1403                 goto out_now;
1404         }
1405         totaddrp = (unsigned int *)optval;
1406         totaddr = *totaddrp;
1407         sa = (struct sockaddr *)(totaddrp + 1);
1408         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1409         if ((stcb != NULL) || bad_addresses) {
1410                 /* Already have or am bring up an association */
1411                 SCTP_ASOC_CREATE_UNLOCK(inp);
1412                 creat_lock_on = 0;
1413                 if (stcb)
1414                         SCTP_TCB_UNLOCK(stcb);
1415                 if (bad_addresses == 0) {
1416                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1417                         error = EALREADY;
1418                 }
1419                 goto out_now;
1420         }
1421 #ifdef INET6
1422         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1423             (num_v6 > 0)) {
1424                 error = EINVAL;
1425                 goto out_now;
1426         }
1427         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1428             (num_v4 > 0)) {
1429                 struct in6pcb *inp6;
1430
1431                 inp6 = (struct in6pcb *)inp;
1432                 if (SCTP_IPV6_V6ONLY(inp6)) {
1433                         /*
1434                          * if IPV6_V6ONLY flag, ignore connections destined
1435                          * to a v4 addr or v4-mapped addr
1436                          */
1437                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1438                         error = EINVAL;
1439                         goto out_now;
1440                 }
1441         }
1442 #endif                          /* INET6 */
1443         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1444             SCTP_PCB_FLAGS_UNBOUND) {
1445                 /* Bind a ephemeral port */
1446                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1447                 if (error) {
1448                         goto out_now;
1449                 }
1450         }
1451         /* FIX ME: do we want to pass in a vrf on the connect call? */
1452         vrf_id = inp->def_vrf_id;
1453
1454
1455         /* We are GOOD to go */
1456         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1457             inp->sctp_ep.pre_open_stream_count,
1458             inp->sctp_ep.port,
1459             (struct thread *)p
1460             );
1461         if (stcb == NULL) {
1462                 /* Gak! no memory */
1463                 goto out_now;
1464         }
1465         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1466                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1467                 /* Set the connected flag so we can queue data */
1468                 soisconnecting(so);
1469         }
1470         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1471         /* move to second address */
1472         switch (sa->sa_family) {
1473 #ifdef INET
1474         case AF_INET:
1475                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1476                 break;
1477 #endif
1478 #ifdef INET6
1479         case AF_INET6:
1480                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1481                 break;
1482 #endif
1483         default:
1484                 break;
1485         }
1486
1487         error = 0;
1488         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1489         /* Fill in the return id */
1490         if (error) {
1491                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1492                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1493                 goto out_now;
1494         }
1495         a_id = (sctp_assoc_t *)optval;
1496         *a_id = sctp_get_associd(stcb);
1497
1498         /* initialize authentication parameters for the assoc */
1499         sctp_initialize_auth_params(inp, stcb);
1500
1501         if (delay) {
1502                 /* doing delayed connection */
1503                 stcb->asoc.delayed_connection = 1;
1504                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1505         } else {
1506                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1507                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1508         }
1509         SCTP_TCB_UNLOCK(stcb);
1510 out_now:
1511         if (creat_lock_on) {
1512                 SCTP_ASOC_CREATE_UNLOCK(inp);
1513         }
1514         SCTP_INP_DECR_REF(inp);
1515         return (error);
1516 }
1517
1518 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1519         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1520             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1521                 SCTP_INP_RLOCK(inp); \
1522                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1523                 if (stcb) { \
1524                         SCTP_TCB_LOCK(stcb); \
1525                 } \
1526                 SCTP_INP_RUNLOCK(inp); \
1527         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1528                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1529                 if (stcb == NULL) { \
1530                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1531                         error = ENOENT; \
1532                         break; \
1533                 } \
1534         } else { \
1535                 stcb = NULL; \
1536         } \
1537 }
1538
1539
1540 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1541         if (size < sizeof(type)) { \
1542                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1543                 error = EINVAL; \
1544                 break; \
1545         } else { \
1546                 destp = (type *)srcp; \
1547         } \
1548 }
1549
1550 static int
1551 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1552     void *p)
1553 {
1554         struct sctp_inpcb *inp = NULL;
1555         int error, val = 0;
1556         struct sctp_tcb *stcb = NULL;
1557
1558         if (optval == NULL) {
1559                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1560                 return (EINVAL);
1561         }
1562         inp = (struct sctp_inpcb *)so->so_pcb;
1563         if (inp == NULL) {
1564                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1565                 return EINVAL;
1566         }
1567         error = 0;
1568
1569         switch (optname) {
1570         case SCTP_NODELAY:
1571         case SCTP_AUTOCLOSE:
1572         case SCTP_EXPLICIT_EOR:
1573         case SCTP_AUTO_ASCONF:
1574         case SCTP_DISABLE_FRAGMENTS:
1575         case SCTP_I_WANT_MAPPED_V4_ADDR:
1576         case SCTP_USE_EXT_RCVINFO:
1577                 SCTP_INP_RLOCK(inp);
1578                 switch (optname) {
1579                 case SCTP_DISABLE_FRAGMENTS:
1580                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1581                         break;
1582                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1583                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1584                         break;
1585                 case SCTP_AUTO_ASCONF:
1586                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1587                                 /* only valid for bound all sockets */
1588                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1589                         } else {
1590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1591                                 error = EINVAL;
1592                                 goto flags_out;
1593                         }
1594                         break;
1595                 case SCTP_EXPLICIT_EOR:
1596                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1597                         break;
1598                 case SCTP_NODELAY:
1599                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1600                         break;
1601                 case SCTP_USE_EXT_RCVINFO:
1602                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1603                         break;
1604                 case SCTP_AUTOCLOSE:
1605                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1606                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1607                         else
1608                                 val = 0;
1609                         break;
1610
1611                 default:
1612                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1613                         error = ENOPROTOOPT;
1614                 }               /* end switch (sopt->sopt_name) */
1615                 if (*optsize < sizeof(val)) {
1616                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1617                         error = EINVAL;
1618                 }
1619 flags_out:
1620                 SCTP_INP_RUNLOCK(inp);
1621                 if (error == 0) {
1622                         /* return the option value */
1623                         *(int *)optval = val;
1624                         *optsize = sizeof(val);
1625                 }
1626                 break;
1627         case SCTP_GET_PACKET_LOG:
1628                 {
1629 #ifdef  SCTP_PACKET_LOGGING
1630                         uint8_t *target;
1631                         int ret;
1632
1633                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1634                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1635                         *optsize = ret;
1636 #else
1637                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1638                         error = EOPNOTSUPP;
1639 #endif
1640                         break;
1641                 }
1642         case SCTP_REUSE_PORT:
1643                 {
1644                         uint32_t *value;
1645
1646                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1647                                 /* Can't do this for a 1-m socket */
1648                                 error = EINVAL;
1649                                 break;
1650                         }
1651                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1652                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1653                         *optsize = sizeof(uint32_t);
1654                         break;
1655                 }
1656         case SCTP_PARTIAL_DELIVERY_POINT:
1657                 {
1658                         uint32_t *value;
1659
1660                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1661                         *value = inp->partial_delivery_point;
1662                         *optsize = sizeof(uint32_t);
1663                         break;
1664                 }
1665         case SCTP_FRAGMENT_INTERLEAVE:
1666                 {
1667                         uint32_t *value;
1668
1669                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1670                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1671                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1672                                         *value = SCTP_FRAG_LEVEL_2;
1673                                 } else {
1674                                         *value = SCTP_FRAG_LEVEL_1;
1675                                 }
1676                         } else {
1677                                 *value = SCTP_FRAG_LEVEL_0;
1678                         }
1679                         *optsize = sizeof(uint32_t);
1680                         break;
1681                 }
1682         case SCTP_INTERLEAVING_SUPPORTED:
1683                 {
1684                         struct sctp_assoc_value *av;
1685
1686                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1687                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1688
1689                         if (stcb) {
1690                                 av->assoc_value = stcb->asoc.idata_supported;
1691                                 SCTP_TCB_UNLOCK(stcb);
1692                         } else {
1693                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1694                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1695                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1696                                         SCTP_INP_RLOCK(inp);
1697                                         if (inp->idata_supported) {
1698                                                 av->assoc_value = 1;
1699                                         } else {
1700                                                 av->assoc_value = 0;
1701                                         }
1702                                         SCTP_INP_RUNLOCK(inp);
1703                                 } else {
1704                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1705                                         error = EINVAL;
1706                                 }
1707                         }
1708                         if (error == 0) {
1709                                 *optsize = sizeof(struct sctp_assoc_value);
1710                         }
1711                         break;
1712                 }
1713         case SCTP_CMT_ON_OFF:
1714                 {
1715                         struct sctp_assoc_value *av;
1716
1717                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1718                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1719                         if (stcb) {
1720                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1721                                 SCTP_TCB_UNLOCK(stcb);
1722                         } else {
1723                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1724                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1725                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1726                                         SCTP_INP_RLOCK(inp);
1727                                         av->assoc_value = inp->sctp_cmt_on_off;
1728                                         SCTP_INP_RUNLOCK(inp);
1729                                 } else {
1730                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1731                                         error = EINVAL;
1732                                 }
1733                         }
1734                         if (error == 0) {
1735                                 *optsize = sizeof(struct sctp_assoc_value);
1736                         }
1737                         break;
1738                 }
1739         case SCTP_PLUGGABLE_CC:
1740                 {
1741                         struct sctp_assoc_value *av;
1742
1743                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1744                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1745                         if (stcb) {
1746                                 av->assoc_value = stcb->asoc.congestion_control_module;
1747                                 SCTP_TCB_UNLOCK(stcb);
1748                         } else {
1749                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1750                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1751                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1752                                         SCTP_INP_RLOCK(inp);
1753                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1754                                         SCTP_INP_RUNLOCK(inp);
1755                                 } else {
1756                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1757                                         error = EINVAL;
1758                                 }
1759                         }
1760                         if (error == 0) {
1761                                 *optsize = sizeof(struct sctp_assoc_value);
1762                         }
1763                         break;
1764                 }
1765         case SCTP_CC_OPTION:
1766                 {
1767                         struct sctp_cc_option *cc_opt;
1768
1769                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1770                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1771                         if (stcb == NULL) {
1772                                 error = EINVAL;
1773                         } else {
1774                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1775                                         error = ENOTSUP;
1776                                 } else {
1777                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1778                                         *optsize = sizeof(struct sctp_cc_option);
1779                                 }
1780                                 SCTP_TCB_UNLOCK(stcb);
1781                         }
1782                         break;
1783                 }
1784         case SCTP_PLUGGABLE_SS:
1785                 {
1786                         struct sctp_assoc_value *av;
1787
1788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1790                         if (stcb) {
1791                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1792                                 SCTP_TCB_UNLOCK(stcb);
1793                         } else {
1794                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1795                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1796                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1797                                         SCTP_INP_RLOCK(inp);
1798                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1799                                         SCTP_INP_RUNLOCK(inp);
1800                                 } else {
1801                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1802                                         error = EINVAL;
1803                                 }
1804                         }
1805                         if (error == 0) {
1806                                 *optsize = sizeof(struct sctp_assoc_value);
1807                         }
1808                         break;
1809                 }
1810         case SCTP_SS_VALUE:
1811                 {
1812                         struct sctp_stream_value *av;
1813
1814                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1815                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1816                         if (stcb) {
1817                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1818                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1819                                     &av->stream_value) < 0)) {
1820                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1821                                         error = EINVAL;
1822                                 } else {
1823                                         *optsize = sizeof(struct sctp_stream_value);
1824                                 }
1825                                 SCTP_TCB_UNLOCK(stcb);
1826                         } else {
1827                                 /*
1828                                  * Can't get stream value without
1829                                  * association
1830                                  */
1831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1832                                 error = EINVAL;
1833                         }
1834                         break;
1835                 }
1836         case SCTP_GET_ADDR_LEN:
1837                 {
1838                         struct sctp_assoc_value *av;
1839
1840                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1841                         error = EINVAL;
1842 #ifdef INET
1843                         if (av->assoc_value == AF_INET) {
1844                                 av->assoc_value = sizeof(struct sockaddr_in);
1845                                 error = 0;
1846                         }
1847 #endif
1848 #ifdef INET6
1849                         if (av->assoc_value == AF_INET6) {
1850                                 av->assoc_value = sizeof(struct sockaddr_in6);
1851                                 error = 0;
1852                         }
1853 #endif
1854                         if (error) {
1855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1856                         } else {
1857                                 *optsize = sizeof(struct sctp_assoc_value);
1858                         }
1859                         break;
1860                 }
1861         case SCTP_GET_ASSOC_NUMBER:
1862                 {
1863                         uint32_t *value, cnt;
1864
1865                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1866                         SCTP_INP_RLOCK(inp);
1867                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1868                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1869                                 /* Can't do this for a 1-1 socket */
1870                                 error = EINVAL;
1871                                 SCTP_INP_RUNLOCK(inp);
1872                                 break;
1873                         }
1874                         cnt = 0;
1875                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1876                                 cnt++;
1877                         }
1878                         SCTP_INP_RUNLOCK(inp);
1879                         *value = cnt;
1880                         *optsize = sizeof(uint32_t);
1881                         break;
1882                 }
1883         case SCTP_GET_ASSOC_ID_LIST:
1884                 {
1885                         struct sctp_assoc_ids *ids;
1886                         uint32_t at;
1887                         size_t limit;
1888
1889                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1890                         SCTP_INP_RLOCK(inp);
1891                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1892                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1893                                 /* Can't do this for a 1-1 socket */
1894                                 error = EINVAL;
1895                                 SCTP_INP_RUNLOCK(inp);
1896                                 break;
1897                         }
1898                         at = 0;
1899                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1900                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1901                                 if (at < limit) {
1902                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1903                                         if (at == 0) {
1904                                                 error = EINVAL;
1905                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1906                                                 break;
1907                                         }
1908                                 } else {
1909                                         error = EINVAL;
1910                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1911                                         break;
1912                                 }
1913                         }
1914                         SCTP_INP_RUNLOCK(inp);
1915                         if (error == 0) {
1916                                 ids->gaids_number_of_ids = at;
1917                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1918                         }
1919                         break;
1920                 }
1921         case SCTP_CONTEXT:
1922                 {
1923                         struct sctp_assoc_value *av;
1924
1925                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1926                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1927
1928                         if (stcb) {
1929                                 av->assoc_value = stcb->asoc.context;
1930                                 SCTP_TCB_UNLOCK(stcb);
1931                         } else {
1932                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1933                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1934                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1935                                         SCTP_INP_RLOCK(inp);
1936                                         av->assoc_value = inp->sctp_context;
1937                                         SCTP_INP_RUNLOCK(inp);
1938                                 } else {
1939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1940                                         error = EINVAL;
1941                                 }
1942                         }
1943                         if (error == 0) {
1944                                 *optsize = sizeof(struct sctp_assoc_value);
1945                         }
1946                         break;
1947                 }
1948         case SCTP_VRF_ID:
1949                 {
1950                         uint32_t *default_vrfid;
1951
1952                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1953                         *default_vrfid = inp->def_vrf_id;
1954                         *optsize = sizeof(uint32_t);
1955                         break;
1956                 }
1957         case SCTP_GET_ASOC_VRF:
1958                 {
1959                         struct sctp_assoc_value *id;
1960
1961                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1962                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1963                         if (stcb == NULL) {
1964                                 error = EINVAL;
1965                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1966                         } else {
1967                                 id->assoc_value = stcb->asoc.vrf_id;
1968                                 SCTP_TCB_UNLOCK(stcb);
1969                                 *optsize = sizeof(struct sctp_assoc_value);
1970                         }
1971                         break;
1972                 }
1973         case SCTP_GET_VRF_IDS:
1974                 {
1975                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1976                         error = EOPNOTSUPP;
1977                         break;
1978                 }
1979         case SCTP_GET_NONCE_VALUES:
1980                 {
1981                         struct sctp_get_nonce_values *gnv;
1982
1983                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1984                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1985
1986                         if (stcb) {
1987                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1988                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1989                                 SCTP_TCB_UNLOCK(stcb);
1990                                 *optsize = sizeof(struct sctp_get_nonce_values);
1991                         } else {
1992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1993                                 error = ENOTCONN;
1994                         }
1995                         break;
1996                 }
1997         case SCTP_DELAYED_SACK:
1998                 {
1999                         struct sctp_sack_info *sack;
2000
2001                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2002                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2003                         if (stcb) {
2004                                 sack->sack_delay = stcb->asoc.delayed_ack;
2005                                 sack->sack_freq = stcb->asoc.sack_freq;
2006                                 SCTP_TCB_UNLOCK(stcb);
2007                         } else {
2008                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2009                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2010                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2011                                         SCTP_INP_RLOCK(inp);
2012                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2013                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2014                                         SCTP_INP_RUNLOCK(inp);
2015                                 } else {
2016                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2017                                         error = EINVAL;
2018                                 }
2019                         }
2020                         if (error == 0) {
2021                                 *optsize = sizeof(struct sctp_sack_info);
2022                         }
2023                         break;
2024                 }
2025         case SCTP_GET_SNDBUF_USE:
2026                 {
2027                         struct sctp_sockstat *ss;
2028
2029                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2030                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2031
2032                         if (stcb) {
2033                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2034                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2035                                     stcb->asoc.size_on_all_streams);
2036                                 SCTP_TCB_UNLOCK(stcb);
2037                                 *optsize = sizeof(struct sctp_sockstat);
2038                         } else {
2039                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2040                                 error = ENOTCONN;
2041                         }
2042                         break;
2043                 }
2044         case SCTP_MAX_BURST:
2045                 {
2046                         struct sctp_assoc_value *av;
2047
2048                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2049                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2050
2051                         if (stcb) {
2052                                 av->assoc_value = stcb->asoc.max_burst;
2053                                 SCTP_TCB_UNLOCK(stcb);
2054                         } else {
2055                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2056                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2057                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2058                                         SCTP_INP_RLOCK(inp);
2059                                         av->assoc_value = inp->sctp_ep.max_burst;
2060                                         SCTP_INP_RUNLOCK(inp);
2061                                 } else {
2062                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2063                                         error = EINVAL;
2064                                 }
2065                         }
2066                         if (error == 0) {
2067                                 *optsize = sizeof(struct sctp_assoc_value);
2068                         }
2069                         break;
2070                 }
2071         case SCTP_MAXSEG:
2072                 {
2073                         struct sctp_assoc_value *av;
2074                         int ovh;
2075
2076                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2077                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2078
2079                         if (stcb) {
2080                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2081                                 SCTP_TCB_UNLOCK(stcb);
2082                         } else {
2083                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2084                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2085                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2086                                         SCTP_INP_RLOCK(inp);
2087                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2088                                                 ovh = SCTP_MED_OVERHEAD;
2089                                         } else {
2090                                                 ovh = SCTP_MED_V4_OVERHEAD;
2091                                         }
2092                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2093                                                 av->assoc_value = 0;
2094                                         else
2095                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2096                                         SCTP_INP_RUNLOCK(inp);
2097                                 } else {
2098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2099                                         error = EINVAL;
2100                                 }
2101                         }
2102                         if (error == 0) {
2103                                 *optsize = sizeof(struct sctp_assoc_value);
2104                         }
2105                         break;
2106                 }
2107         case SCTP_GET_STAT_LOG:
2108                 error = sctp_fill_stat_log(optval, optsize);
2109                 break;
2110         case SCTP_EVENTS:
2111                 {
2112                         struct sctp_event_subscribe *events;
2113
2114                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2115                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2116                         SCTP_INP_RLOCK(inp);
2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2118                                 events->sctp_data_io_event = 1;
2119
2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2121                                 events->sctp_association_event = 1;
2122
2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2124                                 events->sctp_address_event = 1;
2125
2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2127                                 events->sctp_send_failure_event = 1;
2128
2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2130                                 events->sctp_peer_error_event = 1;
2131
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2133                                 events->sctp_shutdown_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2136                                 events->sctp_partial_delivery_event = 1;
2137
2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2139                                 events->sctp_adaptation_layer_event = 1;
2140
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2142                                 events->sctp_authentication_event = 1;
2143
2144                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2145                                 events->sctp_sender_dry_event = 1;
2146
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2148                                 events->sctp_stream_reset_event = 1;
2149                         SCTP_INP_RUNLOCK(inp);
2150                         *optsize = sizeof(struct sctp_event_subscribe);
2151                         break;
2152                 }
2153         case SCTP_ADAPTATION_LAYER:
2154                 {
2155                         uint32_t *value;
2156
2157                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2158
2159                         SCTP_INP_RLOCK(inp);
2160                         *value = inp->sctp_ep.adaptation_layer_indicator;
2161                         SCTP_INP_RUNLOCK(inp);
2162                         *optsize = sizeof(uint32_t);
2163                         break;
2164                 }
2165         case SCTP_SET_INITIAL_DBG_SEQ:
2166                 {
2167                         uint32_t *value;
2168
2169                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2170                         SCTP_INP_RLOCK(inp);
2171                         *value = inp->sctp_ep.initial_sequence_debug;
2172                         SCTP_INP_RUNLOCK(inp);
2173                         *optsize = sizeof(uint32_t);
2174                         break;
2175                 }
2176         case SCTP_GET_LOCAL_ADDR_SIZE:
2177                 {
2178                         uint32_t *value;
2179
2180                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2181                         SCTP_INP_RLOCK(inp);
2182                         *value = sctp_count_max_addresses(inp);
2183                         SCTP_INP_RUNLOCK(inp);
2184                         *optsize = sizeof(uint32_t);
2185                         break;
2186                 }
2187         case SCTP_GET_REMOTE_ADDR_SIZE:
2188                 {
2189                         uint32_t *value;
2190                         size_t size;
2191                         struct sctp_nets *net;
2192
2193                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2194                         /* FIXME MT: change to sctp_assoc_value? */
2195                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2196
2197                         if (stcb) {
2198                                 size = 0;
2199                                 /* Count the sizes */
2200                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2201                                         switch (net->ro._l_addr.sa.sa_family) {
2202 #ifdef INET
2203                                         case AF_INET:
2204 #ifdef INET6
2205                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2206                                                         size += sizeof(struct sockaddr_in6);
2207                                                 } else {
2208                                                         size += sizeof(struct sockaddr_in);
2209                                                 }
2210 #else
2211                                                 size += sizeof(struct sockaddr_in);
2212 #endif
2213                                                 break;
2214 #endif
2215 #ifdef INET6
2216                                         case AF_INET6:
2217                                                 size += sizeof(struct sockaddr_in6);
2218                                                 break;
2219 #endif
2220                                         default:
2221                                                 break;
2222                                         }
2223                                 }
2224                                 SCTP_TCB_UNLOCK(stcb);
2225                                 *value = (uint32_t)size;
2226                                 *optsize = sizeof(uint32_t);
2227                         } else {
2228                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2229                                 error = ENOTCONN;
2230                         }
2231                         break;
2232                 }
2233         case SCTP_GET_PEER_ADDRESSES:
2234                 /*
2235                  * Get the address information, an array is passed in to
2236                  * fill up we pack it.
2237                  */
2238                 {
2239                         size_t cpsz, left;
2240                         struct sockaddr_storage *sas;
2241                         struct sctp_nets *net;
2242                         struct sctp_getaddresses *saddr;
2243
2244                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2245                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2246
2247                         if (stcb) {
2248                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2249                                 *optsize = sizeof(struct sctp_getaddresses);
2250                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2251
2252                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2253                                         switch (net->ro._l_addr.sa.sa_family) {
2254 #ifdef INET
2255                                         case AF_INET:
2256 #ifdef INET6
2257                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2258                                                         cpsz = sizeof(struct sockaddr_in6);
2259                                                 } else {
2260                                                         cpsz = sizeof(struct sockaddr_in);
2261                                                 }
2262 #else
2263                                                 cpsz = sizeof(struct sockaddr_in);
2264 #endif
2265                                                 break;
2266 #endif
2267 #ifdef INET6
2268                                         case AF_INET6:
2269                                                 cpsz = sizeof(struct sockaddr_in6);
2270                                                 break;
2271 #endif
2272                                         default:
2273                                                 cpsz = 0;
2274                                                 break;
2275                                         }
2276                                         if (cpsz == 0) {
2277                                                 break;
2278                                         }
2279                                         if (left < cpsz) {
2280                                                 /* not enough room. */
2281                                                 break;
2282                                         }
2283 #if defined(INET) && defined(INET6)
2284                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2285                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2286                                                 /* Must map the address */
2287                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2288                                                     (struct sockaddr_in6 *)sas);
2289                                         } else {
2290                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2291                                         }
2292 #else
2293                                         memcpy(sas, &net->ro._l_addr, cpsz);
2294 #endif
2295                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2296
2297                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2298                                         left -= cpsz;
2299                                         *optsize += cpsz;
2300                                 }
2301                                 SCTP_TCB_UNLOCK(stcb);
2302                         } else {
2303                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2304                                 error = ENOENT;
2305                         }
2306                         break;
2307                 }
2308         case SCTP_GET_LOCAL_ADDRESSES:
2309                 {
2310                         size_t limit, actual;
2311                         struct sockaddr_storage *sas;
2312                         struct sctp_getaddresses *saddr;
2313
2314                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2315                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2316
2317                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2318                         limit = *optsize - sizeof(sctp_assoc_t);
2319                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2320                         if (stcb) {
2321                                 SCTP_TCB_UNLOCK(stcb);
2322                         }
2323                         *optsize = sizeof(struct sockaddr_storage) + actual;
2324                         break;
2325                 }
2326         case SCTP_PEER_ADDR_PARAMS:
2327                 {
2328                         struct sctp_paddrparams *paddrp;
2329                         struct sctp_nets *net;
2330                         struct sockaddr *addr;
2331 #if defined(INET) && defined(INET6)
2332                         struct sockaddr_in sin_store;
2333 #endif
2334
2335                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2336                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2337
2338 #if defined(INET) && defined(INET6)
2339                         if (paddrp->spp_address.ss_family == AF_INET6) {
2340                                 struct sockaddr_in6 *sin6;
2341
2342                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2343                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2344                                         in6_sin6_2_sin(&sin_store, sin6);
2345                                         addr = (struct sockaddr *)&sin_store;
2346                                 } else {
2347                                         addr = (struct sockaddr *)&paddrp->spp_address;
2348                                 }
2349                         } else {
2350                                 addr = (struct sockaddr *)&paddrp->spp_address;
2351                         }
2352 #else
2353                         addr = (struct sockaddr *)&paddrp->spp_address;
2354 #endif
2355                         if (stcb != NULL) {
2356                                 net = sctp_findnet(stcb, addr);
2357                         } else {
2358                                 /*
2359                                  * We increment here since
2360                                  * sctp_findassociation_ep_addr() wil do a
2361                                  * decrement if it finds the stcb as long as
2362                                  * the locked tcb (last argument) is NOT a
2363                                  * TCB.. aka NULL.
2364                                  */
2365                                 net = NULL;
2366                                 SCTP_INP_INCR_REF(inp);
2367                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2368                                 if (stcb == NULL) {
2369                                         SCTP_INP_DECR_REF(inp);
2370                                 }
2371                         }
2372                         if ((stcb != NULL) && (net == NULL)) {
2373 #ifdef INET
2374                                 if (addr->sa_family == AF_INET) {
2375                                         struct sockaddr_in *sin;
2376
2377                                         sin = (struct sockaddr_in *)addr;
2378                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2379                                                 error = EINVAL;
2380                                                 SCTP_TCB_UNLOCK(stcb);
2381                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2382                                                 break;
2383                                         }
2384                                 } else
2385 #endif
2386 #ifdef INET6
2387                                 if (addr->sa_family == AF_INET6) {
2388                                         struct sockaddr_in6 *sin6;
2389
2390                                         sin6 = (struct sockaddr_in6 *)addr;
2391                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2392                                                 error = EINVAL;
2393                                                 SCTP_TCB_UNLOCK(stcb);
2394                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2395                                                 break;
2396                                         }
2397                                 } else
2398 #endif
2399                                 {
2400                                         error = EAFNOSUPPORT;
2401                                         SCTP_TCB_UNLOCK(stcb);
2402                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2403                                         break;
2404                                 }
2405                         }
2406                         if (stcb != NULL) {
2407                                 /* Applies to the specific association */
2408                                 paddrp->spp_flags = 0;
2409                                 if (net != NULL) {
2410                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2411                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2412                                         paddrp->spp_pathmtu = net->mtu;
2413                                         switch (net->ro._l_addr.sa.sa_family) {
2414 #ifdef INET
2415                                         case AF_INET:
2416                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2417                                                 break;
2418 #endif
2419 #ifdef INET6
2420                                         case AF_INET6:
2421                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2422                                                 break;
2423 #endif
2424                                         default:
2425                                                 break;
2426                                         }
2427                                         /* get flags for HB */
2428                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2429                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2430                                         } else {
2431                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2432                                         }
2433                                         /* get flags for PMTU */
2434                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2435                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2436                                         } else {
2437                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2438                                         }
2439                                         if (net->dscp & 0x01) {
2440                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2441                                                 paddrp->spp_flags |= SPP_DSCP;
2442                                         }
2443 #ifdef INET6
2444                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2445                                             (net->flowlabel & 0x80000000)) {
2446                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2447                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2448                                         }
2449 #endif
2450                                 } else {
2451                                         /*
2452                                          * No destination so return default
2453                                          * value
2454                                          */
2455                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2456                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2457                                         if (stcb->asoc.default_dscp & 0x01) {
2458                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2459                                                 paddrp->spp_flags |= SPP_DSCP;
2460                                         }
2461 #ifdef INET6
2462                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2463                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2464                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2465                                         }
2466 #endif
2467                                         /* default settings should be these */
2468                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2469                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2470                                         } else {
2471                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2472                                         }
2473                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2474                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2475                                         } else {
2476                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2477                                         }
2478                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2479                                 }
2480                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2481                                 SCTP_TCB_UNLOCK(stcb);
2482                         } else {
2483                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2484                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2485                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2486                                         /* Use endpoint defaults */
2487                                         SCTP_INP_RLOCK(inp);
2488                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2489                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2490                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2491                                         /* get inp's default */
2492                                         if (inp->sctp_ep.default_dscp & 0x01) {
2493                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2494                                                 paddrp->spp_flags |= SPP_DSCP;
2495                                         }
2496 #ifdef INET6
2497                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2498                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2499                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2500                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2501                                         }
2502 #endif
2503                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2504
2505                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2506                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2509                                         }
2510                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2511                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2512                                         } else {
2513                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2514                                         }
2515                                         SCTP_INP_RUNLOCK(inp);
2516                                 } else {
2517                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2518                                         error = EINVAL;
2519                                 }
2520                         }
2521                         if (error == 0) {
2522                                 *optsize = sizeof(struct sctp_paddrparams);
2523                         }
2524                         break;
2525                 }
2526         case SCTP_GET_PEER_ADDR_INFO:
2527                 {
2528                         struct sctp_paddrinfo *paddri;
2529                         struct sctp_nets *net;
2530                         struct sockaddr *addr;
2531 #if defined(INET) && defined(INET6)
2532                         struct sockaddr_in sin_store;
2533 #endif
2534
2535                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2536                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2537
2538 #if defined(INET) && defined(INET6)
2539                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2540                                 struct sockaddr_in6 *sin6;
2541
2542                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2543                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2544                                         in6_sin6_2_sin(&sin_store, sin6);
2545                                         addr = (struct sockaddr *)&sin_store;
2546                                 } else {
2547                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2548                                 }
2549                         } else {
2550                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2551                         }
2552 #else
2553                         addr = (struct sockaddr *)&paddri->spinfo_address;
2554 #endif
2555                         if (stcb != NULL) {
2556                                 net = sctp_findnet(stcb, addr);
2557                         } else {
2558                                 /*
2559                                  * We increment here since
2560                                  * sctp_findassociation_ep_addr() wil do a
2561                                  * decrement if it finds the stcb as long as
2562                                  * the locked tcb (last argument) is NOT a
2563                                  * TCB.. aka NULL.
2564                                  */
2565                                 net = NULL;
2566                                 SCTP_INP_INCR_REF(inp);
2567                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2568                                 if (stcb == NULL) {
2569                                         SCTP_INP_DECR_REF(inp);
2570                                 }
2571                         }
2572
2573                         if ((stcb != NULL) && (net != NULL)) {
2574                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2575                                         /* It's unconfirmed */
2576                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2577                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2578                                         /* It's active */
2579                                         paddri->spinfo_state = SCTP_ACTIVE;
2580                                 } else {
2581                                         /* It's inactive */
2582                                         paddri->spinfo_state = SCTP_INACTIVE;
2583                                 }
2584                                 paddri->spinfo_cwnd = net->cwnd;
2585                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2586                                 paddri->spinfo_rto = net->RTO;
2587                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2588                                 paddri->spinfo_mtu = net->mtu;
2589                                 switch (addr->sa_family) {
2590 #if defined(INET)
2591                                 case AF_INET:
2592                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2593                                         break;
2594 #endif
2595 #if defined(INET6)
2596                                 case AF_INET6:
2597                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2598                                         break;
2599 #endif
2600                                 default:
2601                                         break;
2602                                 }
2603                                 SCTP_TCB_UNLOCK(stcb);
2604                                 *optsize = sizeof(struct sctp_paddrinfo);
2605                         } else {
2606                                 if (stcb != NULL) {
2607                                         SCTP_TCB_UNLOCK(stcb);
2608                                 }
2609                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2610                                 error = ENOENT;
2611                         }
2612                         break;
2613                 }
2614         case SCTP_PCB_STATUS:
2615                 {
2616                         struct sctp_pcbinfo *spcb;
2617
2618                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2619                         sctp_fill_pcbinfo(spcb);
2620                         *optsize = sizeof(struct sctp_pcbinfo);
2621                         break;
2622                 }
2623         case SCTP_STATUS:
2624                 {
2625                         struct sctp_nets *net;
2626                         struct sctp_status *sstat;
2627
2628                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2629                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2630
2631                         if (stcb == NULL) {
2632                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2633                                 error = EINVAL;
2634                                 break;
2635                         }
2636                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2637                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2638                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2639                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2640                         /*
2641                          * We can't include chunks that have been passed to
2642                          * the socket layer. Only things in queue.
2643                          */
2644                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2645                             stcb->asoc.cnt_on_all_streams);
2646
2647
2648                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2649                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2650                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2651                         memcpy(&sstat->sstat_primary.spinfo_address,
2652                             &stcb->asoc.primary_destination->ro._l_addr,
2653                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2654                         net = stcb->asoc.primary_destination;
2655                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2656                         /*
2657                          * Again the user can get info from sctp_constants.h
2658                          * for what the state of the network is.
2659                          */
2660                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2661                                 /* It's unconfirmed */
2662                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2663                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2664                                 /* It's active */
2665                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2666                         } else {
2667                                 /* It's inactive */
2668                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2669                         }
2670                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2671                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2672                         sstat->sstat_primary.spinfo_rto = net->RTO;
2673                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2674                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2675 #if defined(INET)
2676                         case AF_INET:
2677                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2678                                 break;
2679 #endif
2680 #if defined(INET6)
2681                         case AF_INET6:
2682                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2683                                 break;
2684 #endif
2685                         default:
2686                                 break;
2687                         }
2688                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2689                         SCTP_TCB_UNLOCK(stcb);
2690                         *optsize = sizeof(struct sctp_status);
2691                         break;
2692                 }
2693         case SCTP_RTOINFO:
2694                 {
2695                         struct sctp_rtoinfo *srto;
2696
2697                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2698                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2699
2700                         if (stcb) {
2701                                 srto->srto_initial = stcb->asoc.initial_rto;
2702                                 srto->srto_max = stcb->asoc.maxrto;
2703                                 srto->srto_min = stcb->asoc.minrto;
2704                                 SCTP_TCB_UNLOCK(stcb);
2705                         } else {
2706                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2707                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2708                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2709                                         SCTP_INP_RLOCK(inp);
2710                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2711                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2712                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2713                                         SCTP_INP_RUNLOCK(inp);
2714                                 } else {
2715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2716                                         error = EINVAL;
2717                                 }
2718                         }
2719                         if (error == 0) {
2720                                 *optsize = sizeof(struct sctp_rtoinfo);
2721                         }
2722                         break;
2723                 }
2724         case SCTP_TIMEOUTS:
2725                 {
2726                         struct sctp_timeouts *stimo;
2727
2728                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2729                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2730
2731                         if (stcb) {
2732                                 stimo->stimo_init = stcb->asoc.timoinit;
2733                                 stimo->stimo_data = stcb->asoc.timodata;
2734                                 stimo->stimo_sack = stcb->asoc.timosack;
2735                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2736                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2737                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2738                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2739                                 SCTP_TCB_UNLOCK(stcb);
2740                                 *optsize = sizeof(struct sctp_timeouts);
2741                         } else {
2742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2743                                 error = EINVAL;
2744                         }
2745                         break;
2746                 }
2747         case SCTP_ASSOCINFO:
2748                 {
2749                         struct sctp_assocparams *sasoc;
2750
2751                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2752                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2753
2754                         if (stcb) {
2755                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2756                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2757                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2758                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2759                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2760                                 SCTP_TCB_UNLOCK(stcb);
2761                         } else {
2762                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2763                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2764                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2765                                         SCTP_INP_RLOCK(inp);
2766                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2767                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2768                                         sasoc->sasoc_number_peer_destinations = 0;
2769                                         sasoc->sasoc_peer_rwnd = 0;
2770                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2771                                         SCTP_INP_RUNLOCK(inp);
2772                                 } else {
2773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2774                                         error = EINVAL;
2775                                 }
2776                         }
2777                         if (error == 0) {
2778                                 *optsize = sizeof(struct sctp_assocparams);
2779                         }
2780                         break;
2781                 }
2782         case SCTP_DEFAULT_SEND_PARAM:
2783                 {
2784                         struct sctp_sndrcvinfo *s_info;
2785
2786                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2787                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2788
2789                         if (stcb) {
2790                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2791                                 SCTP_TCB_UNLOCK(stcb);
2792                         } else {
2793                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2794                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2795                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2796                                         SCTP_INP_RLOCK(inp);
2797                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2798                                         SCTP_INP_RUNLOCK(inp);
2799                                 } else {
2800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2801                                         error = EINVAL;
2802                                 }
2803                         }
2804                         if (error == 0) {
2805                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2806                         }
2807                         break;
2808                 }
2809         case SCTP_INITMSG:
2810                 {
2811                         struct sctp_initmsg *sinit;
2812
2813                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2814                         SCTP_INP_RLOCK(inp);
2815                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2816                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2817                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2818                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2819                         SCTP_INP_RUNLOCK(inp);
2820                         *optsize = sizeof(struct sctp_initmsg);
2821                         break;
2822                 }
2823         case SCTP_PRIMARY_ADDR:
2824                 /* we allow a "get" operation on this */
2825                 {
2826                         struct sctp_setprim *ssp;
2827
2828                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2829                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2830
2831                         if (stcb) {
2832                                 union sctp_sockstore *addr;
2833
2834                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2835                                 switch (addr->sa.sa_family) {
2836 #ifdef INET
2837                                 case AF_INET:
2838 #ifdef INET6
2839                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2840                                                 in6_sin_2_v4mapsin6(&addr->sin,
2841                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2842                                         } else {
2843                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2844                                         }
2845 #else
2846                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2847 #endif
2848                                         break;
2849 #endif
2850 #ifdef INET6
2851                                 case AF_INET6:
2852                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2853                                         break;
2854 #endif
2855                                 default:
2856                                         break;
2857                                 }
2858                                 SCTP_TCB_UNLOCK(stcb);
2859                                 *optsize = sizeof(struct sctp_setprim);
2860                         } else {
2861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2862                                 error = EINVAL;
2863                         }
2864                         break;
2865                 }
2866         case SCTP_HMAC_IDENT:
2867                 {
2868                         struct sctp_hmacalgo *shmac;
2869                         sctp_hmaclist_t *hmaclist;
2870                         uint32_t size;
2871                         int i;
2872
2873                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2874
2875                         SCTP_INP_RLOCK(inp);
2876                         hmaclist = inp->sctp_ep.local_hmacs;
2877                         if (hmaclist == NULL) {
2878                                 /* no HMACs to return */
2879                                 *optsize = sizeof(*shmac);
2880                                 SCTP_INP_RUNLOCK(inp);
2881                                 break;
2882                         }
2883                         /* is there room for all of the hmac ids? */
2884                         size = sizeof(*shmac) + (hmaclist->num_algo *
2885                             sizeof(shmac->shmac_idents[0]));
2886                         if ((size_t)(*optsize) < size) {
2887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2888                                 error = EINVAL;
2889                                 SCTP_INP_RUNLOCK(inp);
2890                                 break;
2891                         }
2892                         /* copy in the list */
2893                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2894                         for (i = 0; i < hmaclist->num_algo; i++) {
2895                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2896                         }
2897                         SCTP_INP_RUNLOCK(inp);
2898                         *optsize = size;
2899                         break;
2900                 }
2901         case SCTP_AUTH_ACTIVE_KEY:
2902                 {
2903                         struct sctp_authkeyid *scact;
2904
2905                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2906                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2907
2908                         if (stcb) {
2909                                 /* get the active key on the assoc */
2910                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2911                                 SCTP_TCB_UNLOCK(stcb);
2912                         } else {
2913                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2914                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2915                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2916                                         /* get the endpoint active key */
2917                                         SCTP_INP_RLOCK(inp);
2918                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2919                                         SCTP_INP_RUNLOCK(inp);
2920                                 } else {
2921                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2922                                         error = EINVAL;
2923                                 }
2924                         }
2925                         if (error == 0) {
2926                                 *optsize = sizeof(struct sctp_authkeyid);
2927                         }
2928                         break;
2929                 }
2930         case SCTP_LOCAL_AUTH_CHUNKS:
2931                 {
2932                         struct sctp_authchunks *sac;
2933                         sctp_auth_chklist_t *chklist = NULL;
2934                         size_t size = 0;
2935
2936                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2937                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2938
2939                         if (stcb) {
2940                                 /* get off the assoc */
2941                                 chklist = stcb->asoc.local_auth_chunks;
2942                                 /* is there enough space? */
2943                                 size = sctp_auth_get_chklist_size(chklist);
2944                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2945                                         error = EINVAL;
2946                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2947                                 } else {
2948                                         /* copy in the chunks */
2949                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2950                                         sac->gauth_number_of_chunks = (uint32_t)size;
2951                                         *optsize = sizeof(struct sctp_authchunks) + size;
2952                                 }
2953                                 SCTP_TCB_UNLOCK(stcb);
2954                         } else {
2955                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2956                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2957                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2958                                         /* get off the endpoint */
2959                                         SCTP_INP_RLOCK(inp);
2960                                         chklist = inp->sctp_ep.local_auth_chunks;
2961                                         /* is there enough space? */
2962                                         size = sctp_auth_get_chklist_size(chklist);
2963                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2964                                                 error = EINVAL;
2965                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2966                                         } else {
2967                                                 /* copy in the chunks */
2968                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2969                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2970                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2971                                         }
2972                                         SCTP_INP_RUNLOCK(inp);
2973                                 } else {
2974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2975                                         error = EINVAL;
2976                                 }
2977                         }
2978                         break;
2979                 }
2980         case SCTP_PEER_AUTH_CHUNKS:
2981                 {
2982                         struct sctp_authchunks *sac;
2983                         sctp_auth_chklist_t *chklist = NULL;
2984                         size_t size = 0;
2985
2986                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2987                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2988
2989                         if (stcb) {
2990                                 /* get off the assoc */
2991                                 chklist = stcb->asoc.peer_auth_chunks;
2992                                 /* is there enough space? */
2993                                 size = sctp_auth_get_chklist_size(chklist);
2994                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2995                                         error = EINVAL;
2996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2997                                 } else {
2998                                         /* copy in the chunks */
2999                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3000                                         sac->gauth_number_of_chunks = (uint32_t)size;
3001                                         *optsize = sizeof(struct sctp_authchunks) + size;
3002                                 }
3003                                 SCTP_TCB_UNLOCK(stcb);
3004                         } else {
3005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3006                                 error = ENOENT;
3007                         }
3008                         break;
3009                 }
3010         case SCTP_EVENT:
3011                 {
3012                         struct sctp_event *event;
3013                         uint32_t event_type;
3014
3015                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3016                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3017
3018                         switch (event->se_type) {
3019                         case SCTP_ASSOC_CHANGE:
3020                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3021                                 break;
3022                         case SCTP_PEER_ADDR_CHANGE:
3023                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3024                                 break;
3025                         case SCTP_REMOTE_ERROR:
3026                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3027                                 break;
3028                         case SCTP_SEND_FAILED:
3029                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3030                                 break;
3031                         case SCTP_SHUTDOWN_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3033                                 break;
3034                         case SCTP_ADAPTATION_INDICATION:
3035                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3036                                 break;
3037                         case SCTP_PARTIAL_DELIVERY_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3039                                 break;
3040                         case SCTP_AUTHENTICATION_EVENT:
3041                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3042                                 break;
3043                         case SCTP_STREAM_RESET_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3045                                 break;
3046                         case SCTP_SENDER_DRY_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3048                                 break;
3049                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3050                                 event_type = 0;
3051                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3052                                 error = ENOTSUP;
3053                                 break;
3054                         case SCTP_ASSOC_RESET_EVENT:
3055                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3056                                 break;
3057                         case SCTP_STREAM_CHANGE_EVENT:
3058                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3059                                 break;
3060                         case SCTP_SEND_FAILED_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3062                                 break;
3063                         default:
3064                                 event_type = 0;
3065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3066                                 error = EINVAL;
3067                                 break;
3068                         }
3069                         if (event_type > 0) {
3070                                 if (stcb) {
3071                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3072                                 } else {
3073                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3074                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3075                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3076                                                 SCTP_INP_RLOCK(inp);
3077                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3078                                                 SCTP_INP_RUNLOCK(inp);
3079                                         } else {
3080                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3081                                                 error = EINVAL;
3082                                         }
3083                                 }
3084                         }
3085                         if (stcb != NULL) {
3086                                 SCTP_TCB_UNLOCK(stcb);
3087                         }
3088                         if (error == 0) {
3089                                 *optsize = sizeof(struct sctp_event);
3090                         }
3091                         break;
3092                 }
3093         case SCTP_RECVRCVINFO:
3094                 {
3095                         int onoff;
3096
3097                         if (*optsize < sizeof(int)) {
3098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                 error = EINVAL;
3100                         } else {
3101                                 SCTP_INP_RLOCK(inp);
3102                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3103                                 SCTP_INP_RUNLOCK(inp);
3104                         }
3105                         if (error == 0) {
3106                                 /* return the option value */
3107                                 *(int *)optval = onoff;
3108                                 *optsize = sizeof(int);
3109                         }
3110                         break;
3111                 }
3112         case SCTP_RECVNXTINFO:
3113                 {
3114                         int onoff;
3115
3116                         if (*optsize < sizeof(int)) {
3117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118                                 error = EINVAL;
3119                         } else {
3120                                 SCTP_INP_RLOCK(inp);
3121                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3122                                 SCTP_INP_RUNLOCK(inp);
3123                         }
3124                         if (error == 0) {
3125                                 /* return the option value */
3126                                 *(int *)optval = onoff;
3127                                 *optsize = sizeof(int);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_DEFAULT_SNDINFO:
3132                 {
3133                         struct sctp_sndinfo *info;
3134
3135                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3136                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3137
3138                         if (stcb) {
3139                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3140                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3141                                 info->snd_flags &= 0xfff0;
3142                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3143                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3144                                 SCTP_TCB_UNLOCK(stcb);
3145                         } else {
3146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3148                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3149                                         SCTP_INP_RLOCK(inp);
3150                                         info->snd_sid = inp->def_send.sinfo_stream;
3151                                         info->snd_flags = inp->def_send.sinfo_flags;
3152                                         info->snd_flags &= 0xfff0;
3153                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3154                                         info->snd_context = inp->def_send.sinfo_context;
3155                                         SCTP_INP_RUNLOCK(inp);
3156                                 } else {
3157                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3158                                         error = EINVAL;
3159                                 }
3160                         }
3161                         if (error == 0) {
3162                                 *optsize = sizeof(struct sctp_sndinfo);
3163                         }
3164                         break;
3165                 }
3166         case SCTP_DEFAULT_PRINFO:
3167                 {
3168                         struct sctp_default_prinfo *info;
3169
3170                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3171                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3172
3173                         if (stcb) {
3174                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3175                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3176                                 SCTP_TCB_UNLOCK(stcb);
3177                         } else {
3178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3180                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3181                                         SCTP_INP_RLOCK(inp);
3182                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3183                                         info->pr_value = inp->def_send.sinfo_timetolive;
3184                                         SCTP_INP_RUNLOCK(inp);
3185                                 } else {
3186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3187                                         error = EINVAL;
3188                                 }
3189                         }
3190                         if (error == 0) {
3191                                 *optsize = sizeof(struct sctp_default_prinfo);
3192                         }
3193                         break;
3194                 }
3195         case SCTP_PEER_ADDR_THLDS:
3196                 {
3197                         struct sctp_paddrthlds *thlds;
3198                         struct sctp_nets *net;
3199                         struct sockaddr *addr;
3200 #if defined(INET) && defined(INET6)
3201                         struct sockaddr_in sin_store;
3202 #endif
3203
3204                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3205                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3206
3207 #if defined(INET) && defined(INET6)
3208                         if (thlds->spt_address.ss_family == AF_INET6) {
3209                                 struct sockaddr_in6 *sin6;
3210
3211                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3212                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3213                                         in6_sin6_2_sin(&sin_store, sin6);
3214                                         addr = (struct sockaddr *)&sin_store;
3215                                 } else {
3216                                         addr = (struct sockaddr *)&thlds->spt_address;
3217                                 }
3218                         } else {
3219                                 addr = (struct sockaddr *)&thlds->spt_address;
3220                         }
3221 #else
3222                         addr = (struct sockaddr *)&thlds->spt_address;
3223 #endif
3224                         if (stcb != NULL) {
3225                                 net = sctp_findnet(stcb, addr);
3226                         } else {
3227                                 /*
3228                                  * We increment here since
3229                                  * sctp_findassociation_ep_addr() wil do a
3230                                  * decrement if it finds the stcb as long as
3231                                  * the locked tcb (last argument) is NOT a
3232                                  * TCB.. aka NULL.
3233                                  */
3234                                 net = NULL;
3235                                 SCTP_INP_INCR_REF(inp);
3236                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3237                                 if (stcb == NULL) {
3238                                         SCTP_INP_DECR_REF(inp);
3239                                 }
3240                         }
3241                         if ((stcb != NULL) && (net == NULL)) {
3242 #ifdef INET
3243                                 if (addr->sa_family == AF_INET) {
3244                                         struct sockaddr_in *sin;
3245
3246                                         sin = (struct sockaddr_in *)addr;
3247                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3248                                                 error = EINVAL;
3249                                                 SCTP_TCB_UNLOCK(stcb);
3250                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3251                                                 break;
3252                                         }
3253                                 } else
3254 #endif
3255 #ifdef INET6
3256                                 if (addr->sa_family == AF_INET6) {
3257                                         struct sockaddr_in6 *sin6;
3258
3259                                         sin6 = (struct sockaddr_in6 *)addr;
3260                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3261                                                 error = EINVAL;
3262                                                 SCTP_TCB_UNLOCK(stcb);
3263                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3264                                                 break;
3265                                         }
3266                                 } else
3267 #endif
3268                                 {
3269                                         error = EAFNOSUPPORT;
3270                                         SCTP_TCB_UNLOCK(stcb);
3271                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3272                                         break;
3273                                 }
3274                         }
3275                         if (stcb != NULL) {
3276                                 if (net != NULL) {
3277                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3278                                         thlds->spt_pathpfthld = net->pf_threshold;
3279                                         thlds->spt_pathcpthld = 0xffff;
3280                                 } else {
3281                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3282                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3283                                         thlds->spt_pathcpthld = 0xffff;
3284                                 }
3285                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3286                                 SCTP_TCB_UNLOCK(stcb);
3287                         } else {
3288                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3289                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3290                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3291                                         /* Use endpoint defaults */
3292                                         SCTP_INP_RLOCK(inp);
3293                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3294                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3295                                         thlds->spt_pathcpthld = 0xffff;
3296                                         SCTP_INP_RUNLOCK(inp);
3297                                 } else {
3298                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3299                                         error = EINVAL;
3300                                 }
3301                         }
3302                         if (error == 0) {
3303                                 *optsize = sizeof(struct sctp_paddrthlds);
3304                         }
3305                         break;
3306                 }
3307         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3308                 {
3309                         struct sctp_udpencaps *encaps;
3310                         struct sctp_nets *net;
3311                         struct sockaddr *addr;
3312 #if defined(INET) && defined(INET6)
3313                         struct sockaddr_in sin_store;
3314 #endif
3315
3316                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3317                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3318
3319 #if defined(INET) && defined(INET6)
3320                         if (encaps->sue_address.ss_family == AF_INET6) {
3321                                 struct sockaddr_in6 *sin6;
3322
3323                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3324                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3325                                         in6_sin6_2_sin(&sin_store, sin6);
3326                                         addr = (struct sockaddr *)&sin_store;
3327                                 } else {
3328                                         addr = (struct sockaddr *)&encaps->sue_address;
3329                                 }
3330                         } else {
3331                                 addr = (struct sockaddr *)&encaps->sue_address;
3332                         }
3333 #else
3334                         addr = (struct sockaddr *)&encaps->sue_address;
3335 #endif
3336                         if (stcb) {
3337                                 net = sctp_findnet(stcb, addr);
3338                         } else {
3339                                 /*
3340                                  * We increment here since
3341                                  * sctp_findassociation_ep_addr() wil do a
3342                                  * decrement if it finds the stcb as long as
3343                                  * the locked tcb (last argument) is NOT a
3344                                  * TCB.. aka NULL.
3345                                  */
3346                                 net = NULL;
3347                                 SCTP_INP_INCR_REF(inp);
3348                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3349                                 if (stcb == NULL) {
3350                                         SCTP_INP_DECR_REF(inp);
3351                                 }
3352                         }
3353                         if ((stcb != NULL) && (net == NULL)) {
3354 #ifdef INET
3355                                 if (addr->sa_family == AF_INET) {
3356                                         struct sockaddr_in *sin;
3357
3358                                         sin = (struct sockaddr_in *)addr;
3359                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3360                                                 error = EINVAL;
3361                                                 SCTP_TCB_UNLOCK(stcb);
3362                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3363                                                 break;
3364                                         }
3365                                 } else
3366 #endif
3367 #ifdef INET6
3368                                 if (addr->sa_family == AF_INET6) {
3369                                         struct sockaddr_in6 *sin6;
3370
3371                                         sin6 = (struct sockaddr_in6 *)addr;
3372                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3373                                                 error = EINVAL;
3374                                                 SCTP_TCB_UNLOCK(stcb);
3375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3376                                                 break;
3377                                         }
3378                                 } else
3379 #endif
3380                                 {
3381                                         error = EAFNOSUPPORT;
3382                                         SCTP_TCB_UNLOCK(stcb);
3383                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3384                                         break;
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_PRINTF("optval is NULL\n");
3752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3753                 return (EINVAL);
3754         }
3755         inp = (struct sctp_inpcb *)so->so_pcb;
3756         if (inp == NULL) {
3757                 SCTP_PRINTF("inp is NULL?\n");
3758                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3759                 return (EINVAL);
3760         }
3761         vrf_id = inp->def_vrf_id;
3762
3763         error = 0;
3764         switch (optname) {
3765         case SCTP_NODELAY:
3766         case SCTP_AUTOCLOSE:
3767         case SCTP_AUTO_ASCONF:
3768         case SCTP_EXPLICIT_EOR:
3769         case SCTP_DISABLE_FRAGMENTS:
3770         case SCTP_USE_EXT_RCVINFO:
3771         case SCTP_I_WANT_MAPPED_V4_ADDR:
3772                 /* copy in the option value */
3773                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3774                 set_opt = 0;
3775                 if (error)
3776                         break;
3777                 switch (optname) {
3778                 case SCTP_DISABLE_FRAGMENTS:
3779                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3780                         break;
3781                 case SCTP_AUTO_ASCONF:
3782                         /*
3783                          * NOTE: we don't really support this flag
3784                          */
3785                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3786                                 /* only valid for bound all sockets */
3787                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3788                                     (*mopt != 0)) {
3789                                         /* forbidden by admin */
3790                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3791                                         return (EPERM);
3792                                 }
3793                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3794                         } else {
3795                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3796                                 return (EINVAL);
3797                         }
3798                         break;
3799                 case SCTP_EXPLICIT_EOR:
3800                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3801                         break;
3802                 case SCTP_USE_EXT_RCVINFO:
3803                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3804                         break;
3805                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3806                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3807                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3808                         } else {
3809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3810                                 return (EINVAL);
3811                         }
3812                         break;
3813                 case SCTP_NODELAY:
3814                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3815                         break;
3816                 case SCTP_AUTOCLOSE:
3817                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3818                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3819                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3820                                 return (EINVAL);
3821                         }
3822                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3823                         /*
3824                          * The value is in ticks. Note this does not effect
3825                          * old associations, only new ones.
3826                          */
3827                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3828                         break;
3829                 }
3830                 SCTP_INP_WLOCK(inp);
3831                 if (*mopt != 0) {
3832                         sctp_feature_on(inp, set_opt);
3833                 } else {
3834                         sctp_feature_off(inp, set_opt);
3835                 }
3836                 SCTP_INP_WUNLOCK(inp);
3837                 break;
3838         case SCTP_REUSE_PORT:
3839                 {
3840                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3841                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3842                                 /* Can't set it after we are bound */
3843                                 error = EINVAL;
3844                                 break;
3845                         }
3846                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3847                                 /* Can't do this for a 1-m socket */
3848                                 error = EINVAL;
3849                                 break;
3850                         }
3851                         if (optval)
3852                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3853                         else
3854                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3855                         break;
3856                 }
3857         case SCTP_PARTIAL_DELIVERY_POINT:
3858                 {
3859                         uint32_t *value;
3860
3861                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3862                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3864                                 error = EINVAL;
3865                                 break;
3866                         }
3867                         inp->partial_delivery_point = *value;
3868                         break;
3869                 }
3870         case SCTP_FRAGMENT_INTERLEAVE:
3871                 /* not yet until we re-write sctp_recvmsg() */
3872                 {
3873                         uint32_t *level;
3874
3875                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3876                         if (*level == SCTP_FRAG_LEVEL_2) {
3877                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3879                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3880                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3882                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3883                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3884                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3885
3886                         } else {
3887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3888                                 error = EINVAL;
3889                         }
3890                         break;
3891                 }
3892         case SCTP_INTERLEAVING_SUPPORTED:
3893                 {
3894                         struct sctp_assoc_value *av;
3895
3896                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3897                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3898
3899                         if (stcb) {
3900                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3901                                 error = EINVAL;
3902                                 SCTP_TCB_UNLOCK(stcb);
3903                         } else {
3904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3906                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3907                                         SCTP_INP_WLOCK(inp);
3908                                         if (av->assoc_value == 0) {
3909                                                 inp->idata_supported = 0;
3910                                         } else {
3911                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3912                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3913                                                         inp->idata_supported = 1;
3914                                                 } else {
3915                                                         /*
3916                                                          * Must have Frag
3917                                                          * interleave and
3918                                                          * stream interleave
3919                                                          * on
3920                                                          */
3921                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3922                                                         error = EINVAL;
3923                                                 }
3924                                         }
3925                                         SCTP_INP_WUNLOCK(inp);
3926                                 } else {
3927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3928                                         error = EINVAL;
3929                                 }
3930                         }
3931                         break;
3932                 }
3933         case SCTP_CMT_ON_OFF:
3934                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3935                         struct sctp_assoc_value *av;
3936
3937                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3938                         if (av->assoc_value > SCTP_CMT_MAX) {
3939                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3940                                 error = EINVAL;
3941                                 break;
3942                         }
3943                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3944                         if (stcb) {
3945                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3946                                 SCTP_TCB_UNLOCK(stcb);
3947                         } else {
3948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3949                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3950                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3951                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3952                                         SCTP_INP_WLOCK(inp);
3953                                         inp->sctp_cmt_on_off = av->assoc_value;
3954                                         SCTP_INP_WUNLOCK(inp);
3955                                 }
3956                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3957                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3958                                         SCTP_INP_RLOCK(inp);
3959                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3960                                                 SCTP_TCB_LOCK(stcb);
3961                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3962                                                 SCTP_TCB_UNLOCK(stcb);
3963                                         }
3964                                         SCTP_INP_RUNLOCK(inp);
3965                                 }
3966                         }
3967                 } else {
3968                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3969                         error = ENOPROTOOPT;
3970                 }
3971                 break;
3972         case SCTP_PLUGGABLE_CC:
3973                 {
3974                         struct sctp_assoc_value *av;
3975                         struct sctp_nets *net;
3976
3977                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3978                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3979                             (av->assoc_value != SCTP_CC_HSTCP) &&
3980                             (av->assoc_value != SCTP_CC_HTCP) &&
3981                             (av->assoc_value != SCTP_CC_RTCC)) {
3982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3983                                 error = EINVAL;
3984                                 break;
3985                         }
3986                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3987                         if (stcb) {
3988                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3989                                 stcb->asoc.congestion_control_module = av->assoc_value;
3990                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3991                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3992                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3993                                         }
3994                                 }
3995                                 SCTP_TCB_UNLOCK(stcb);
3996                         } else {
3997                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3998                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3999                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4000                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4001                                         SCTP_INP_WLOCK(inp);
4002                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4003                                         SCTP_INP_WUNLOCK(inp);
4004                                 }
4005                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4006                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4007                                         SCTP_INP_RLOCK(inp);
4008                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4009                                                 SCTP_TCB_LOCK(stcb);
4010                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4011                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4012                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4013                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4014                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4015                                                         }
4016                                                 }
4017                                                 SCTP_TCB_UNLOCK(stcb);
4018                                         }
4019                                         SCTP_INP_RUNLOCK(inp);
4020                                 }
4021                         }
4022                         break;
4023                 }
4024         case SCTP_CC_OPTION:
4025                 {
4026                         struct sctp_cc_option *cc_opt;
4027
4028                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4029                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4030                         if (stcb == NULL) {
4031                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4032                                         SCTP_INP_RLOCK(inp);
4033                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4034                                                 SCTP_TCB_LOCK(stcb);
4035                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4036                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4037                                                 }
4038                                                 SCTP_TCB_UNLOCK(stcb);
4039                                         }
4040                                         SCTP_INP_RUNLOCK(inp);
4041                                 } else {
4042                                         error = EINVAL;
4043                                 }
4044                         } else {
4045                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4046                                         error = ENOTSUP;
4047                                 } else {
4048                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4049                                             cc_opt);
4050                                 }
4051                                 SCTP_TCB_UNLOCK(stcb);
4052                         }
4053                         break;
4054                 }
4055         case SCTP_PLUGGABLE_SS:
4056                 {
4057                         struct sctp_assoc_value *av;
4058
4059                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4060                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4061                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4062                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4063                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4064                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4065                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4066                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4067                                 error = EINVAL;
4068                                 break;
4069                         }
4070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4071                         if (stcb) {
4072                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4073                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4074                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4075                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
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                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4092                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4093                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4094                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4095                                                 SCTP_TCB_UNLOCK(stcb);
4096                                         }
4097                                         SCTP_INP_RUNLOCK(inp);
4098                                 }
4099                         }
4100                         break;
4101                 }
4102         case SCTP_SS_VALUE:
4103                 {
4104                         struct sctp_stream_value *av;
4105
4106                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4107                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4108                         if (stcb) {
4109                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4110                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4111                                     av->stream_value) < 0)) {
4112                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4113                                         error = EINVAL;
4114                                 }
4115                                 SCTP_TCB_UNLOCK(stcb);
4116                         } else {
4117                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4118                                         SCTP_INP_RLOCK(inp);
4119                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4120                                                 SCTP_TCB_LOCK(stcb);
4121                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4122                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4123                                                             &stcb->asoc,
4124                                                             &stcb->asoc.strmout[av->stream_id],
4125                                                             av->stream_value);
4126                                                 }
4127                                                 SCTP_TCB_UNLOCK(stcb);
4128                                         }
4129                                         SCTP_INP_RUNLOCK(inp);
4130                                 } else {
4131                                         /*
4132                                          * Can't set stream value without
4133                                          * association
4134                                          */
4135                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4136                                         error = EINVAL;
4137                                 }
4138                         }
4139                         break;
4140                 }
4141         case SCTP_CLR_STAT_LOG:
4142                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4143                 error = EOPNOTSUPP;
4144                 break;
4145         case SCTP_CONTEXT:
4146                 {
4147                         struct sctp_assoc_value *av;
4148
4149                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4150                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4151
4152                         if (stcb) {
4153                                 stcb->asoc.context = av->assoc_value;
4154                                 SCTP_TCB_UNLOCK(stcb);
4155                         } else {
4156                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4157                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4158                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4159                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4160                                         SCTP_INP_WLOCK(inp);
4161                                         inp->sctp_context = av->assoc_value;
4162                                         SCTP_INP_WUNLOCK(inp);
4163                                 }
4164                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4165                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4166                                         SCTP_INP_RLOCK(inp);
4167                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4168                                                 SCTP_TCB_LOCK(stcb);
4169                                                 stcb->asoc.context = av->assoc_value;
4170                                                 SCTP_TCB_UNLOCK(stcb);
4171                                         }
4172                                         SCTP_INP_RUNLOCK(inp);
4173                                 }
4174                         }
4175                         break;
4176                 }
4177         case SCTP_VRF_ID:
4178                 {
4179                         uint32_t *default_vrfid;
4180
4181                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4182                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4183                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4184                                 error = EINVAL;
4185                                 break;
4186                         }
4187                         inp->def_vrf_id = *default_vrfid;
4188                         break;
4189                 }
4190         case SCTP_DEL_VRF_ID:
4191                 {
4192                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4193                         error = EOPNOTSUPP;
4194                         break;
4195                 }
4196         case SCTP_ADD_VRF_ID:
4197                 {
4198                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4199                         error = EOPNOTSUPP;
4200                         break;
4201                 }
4202         case SCTP_DELAYED_SACK:
4203                 {
4204                         struct sctp_sack_info *sack;
4205
4206                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4207                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4208                         if (sack->sack_delay) {
4209                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4210                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4211                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4212                                         sack->sack_delay = TICKS_TO_MSEC(1);
4213                                 }
4214                         }
4215                         if (stcb) {
4216                                 if (sack->sack_delay) {
4217                                         stcb->asoc.delayed_ack = sack->sack_delay;
4218                                 }
4219                                 if (sack->sack_freq) {
4220                                         stcb->asoc.sack_freq = sack->sack_freq;
4221                                 }
4222                                 SCTP_TCB_UNLOCK(stcb);
4223                         } else {
4224                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4225                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4226                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4227                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4228                                         SCTP_INP_WLOCK(inp);
4229                                         if (sack->sack_delay) {
4230                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4231                                         }
4232                                         if (sack->sack_freq) {
4233                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4234                                         }
4235                                         SCTP_INP_WUNLOCK(inp);
4236                                 }
4237                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4238                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4239                                         SCTP_INP_RLOCK(inp);
4240                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4241                                                 SCTP_TCB_LOCK(stcb);
4242                                                 if (sack->sack_delay) {
4243                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4244                                                 }
4245                                                 if (sack->sack_freq) {
4246                                                         stcb->asoc.sack_freq = sack->sack_freq;
4247                                                 }
4248                                                 SCTP_TCB_UNLOCK(stcb);
4249                                         }
4250                                         SCTP_INP_RUNLOCK(inp);
4251                                 }
4252                         }
4253                         break;
4254                 }
4255         case SCTP_AUTH_CHUNK:
4256                 {
4257                         struct sctp_authchunk *sauth;
4258
4259                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4260
4261                         SCTP_INP_WLOCK(inp);
4262                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4263                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4264                                 error = EINVAL;
4265                         }
4266                         SCTP_INP_WUNLOCK(inp);
4267                         break;
4268                 }
4269         case SCTP_AUTH_KEY:
4270                 {
4271                         struct sctp_authkey *sca;
4272                         struct sctp_keyhead *shared_keys;
4273                         sctp_sharedkey_t *shared_key;
4274                         sctp_key_t *key = NULL;
4275                         size_t size;
4276
4277                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4278                         if (sca->sca_keylength == 0) {
4279                                 size = optsize - sizeof(struct sctp_authkey);
4280                         } else {
4281                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4282                                         size = sca->sca_keylength;
4283                                 } else {
4284                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4285                                         error = EINVAL;
4286                                         break;
4287                                 }
4288                         }
4289                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4290
4291                         if (stcb) {
4292                                 shared_keys = &stcb->asoc.shared_keys;
4293                                 /* clear the cached keys for this key id */
4294                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4295                                 /*
4296                                  * create the new shared key and
4297                                  * insert/replace it
4298                                  */
4299                                 if (size > 0) {
4300                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4301                                         if (key == NULL) {
4302                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4303                                                 error = ENOMEM;
4304                                                 SCTP_TCB_UNLOCK(stcb);
4305                                                 break;
4306                                         }
4307                                 }
4308                                 shared_key = sctp_alloc_sharedkey();
4309                                 if (shared_key == NULL) {
4310                                         sctp_free_key(key);
4311                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4312                                         error = ENOMEM;
4313                                         SCTP_TCB_UNLOCK(stcb);
4314                                         break;
4315                                 }
4316                                 shared_key->key = key;
4317                                 shared_key->keyid = sca->sca_keynumber;
4318                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4319                                 SCTP_TCB_UNLOCK(stcb);
4320                         } else {
4321                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4322                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4323                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4324                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4325                                         SCTP_INP_WLOCK(inp);
4326                                         shared_keys = &inp->sctp_ep.shared_keys;
4327                                         /*
4328                                          * clear the cached keys on all
4329                                          * assocs for this key id
4330                                          */
4331                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4332                                         /*
4333                                          * create the new shared key and
4334                                          * insert/replace it
4335                                          */
4336                                         if (size > 0) {
4337                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4338                                                 if (key == NULL) {
4339                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4340                                                         error = ENOMEM;
4341                                                         SCTP_INP_WUNLOCK(inp);
4342                                                         break;
4343                                                 }
4344                                         }
4345                                         shared_key = sctp_alloc_sharedkey();
4346                                         if (shared_key == NULL) {
4347                                                 sctp_free_key(key);
4348                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4349                                                 error = ENOMEM;
4350                                                 SCTP_INP_WUNLOCK(inp);
4351                                                 break;
4352                                         }
4353                                         shared_key->key = key;
4354                                         shared_key->keyid = sca->sca_keynumber;
4355                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4356                                         SCTP_INP_WUNLOCK(inp);
4357                                 }
4358                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4359                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4360                                         SCTP_INP_RLOCK(inp);
4361                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4362                                                 SCTP_TCB_LOCK(stcb);
4363                                                 shared_keys = &stcb->asoc.shared_keys;
4364                                                 /*
4365                                                  * clear the cached keys for
4366                                                  * this key id
4367                                                  */
4368                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4369                                                 /*
4370                                                  * create the new shared key
4371                                                  * and insert/replace it
4372                                                  */
4373                                                 if (size > 0) {
4374                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4375                                                         if (key == NULL) {
4376                                                                 SCTP_TCB_UNLOCK(stcb);
4377                                                                 continue;
4378                                                         }
4379                                                 }
4380                                                 shared_key = sctp_alloc_sharedkey();
4381                                                 if (shared_key == NULL) {
4382                                                         sctp_free_key(key);
4383                                                         SCTP_TCB_UNLOCK(stcb);
4384                                                         continue;
4385                                                 }
4386                                                 shared_key->key = key;
4387                                                 shared_key->keyid = sca->sca_keynumber;
4388                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4389                                                 SCTP_TCB_UNLOCK(stcb);
4390                                         }
4391                                         SCTP_INP_RUNLOCK(inp);
4392                                 }
4393                         }
4394                         break;
4395                 }
4396         case SCTP_HMAC_IDENT:
4397                 {
4398                         struct sctp_hmacalgo *shmac;
4399                         sctp_hmaclist_t *hmaclist;
4400                         uint16_t hmacid;
4401                         uint32_t i;
4402
4403                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4404                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4405                             (shmac->shmac_number_of_idents > 0xffff)) {
4406                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4407                                 error = EINVAL;
4408                                 break;
4409                         }
4410                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4411                         if (hmaclist == NULL) {
4412                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4413                                 error = ENOMEM;
4414                                 break;
4415                         }
4416                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4417                                 hmacid = shmac->shmac_idents[i];
4418                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4419                                          /* invalid HMACs were found */ ;
4420                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4421                                         error = EINVAL;
4422                                         sctp_free_hmaclist(hmaclist);
4423                                         goto sctp_set_hmac_done;
4424                                 }
4425                         }
4426                         for (i = 0; i < hmaclist->num_algo; i++) {
4427                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4428                                         /* already in list */
4429                                         break;
4430                                 }
4431                         }
4432                         if (i == hmaclist->num_algo) {
4433                                 /* not found in list */
4434                                 sctp_free_hmaclist(hmaclist);
4435                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4436                                 error = EINVAL;
4437                                 break;
4438                         }
4439                         /* set it on the endpoint */
4440                         SCTP_INP_WLOCK(inp);
4441                         if (inp->sctp_ep.local_hmacs)
4442                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4443                         inp->sctp_ep.local_hmacs = hmaclist;
4444                         SCTP_INP_WUNLOCK(inp);
4445         sctp_set_hmac_done:
4446                         break;
4447                 }
4448         case SCTP_AUTH_ACTIVE_KEY:
4449                 {
4450                         struct sctp_authkeyid *scact;
4451
4452                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4453                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4454
4455                         /* set the active key on the right place */
4456                         if (stcb) {
4457                                 /* set the active key on the assoc */
4458                                 if (sctp_auth_setactivekey(stcb,
4459                                     scact->scact_keynumber)) {
4460                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4461                                             SCTP_FROM_SCTP_USRREQ,
4462                                             EINVAL);
4463                                         error = EINVAL;
4464                                 }
4465                                 SCTP_TCB_UNLOCK(stcb);
4466                         } else {
4467                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4468                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4469                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4470                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4471                                         SCTP_INP_WLOCK(inp);
4472                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4473                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4474                                                 error = EINVAL;
4475                                         }
4476                                         SCTP_INP_WUNLOCK(inp);
4477                                 }
4478                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4479                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4480                                         SCTP_INP_RLOCK(inp);
4481                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4482                                                 SCTP_TCB_LOCK(stcb);
4483                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4484                                                 SCTP_TCB_UNLOCK(stcb);
4485                                         }
4486                                         SCTP_INP_RUNLOCK(inp);
4487                                 }
4488                         }
4489                         break;
4490                 }
4491         case SCTP_AUTH_DELETE_KEY:
4492                 {
4493                         struct sctp_authkeyid *scdel;
4494
4495                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4496                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4497
4498                         /* delete the key from the right place */
4499                         if (stcb) {
4500                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4501                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4502                                         error = EINVAL;
4503                                 }
4504                                 SCTP_TCB_UNLOCK(stcb);
4505                         } else {
4506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4508                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4509                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4510                                         SCTP_INP_WLOCK(inp);
4511                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4512                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4513                                                 error = EINVAL;
4514                                         }
4515                                         SCTP_INP_WUNLOCK(inp);
4516                                 }
4517                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4518                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4519                                         SCTP_INP_RLOCK(inp);
4520                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4521                                                 SCTP_TCB_LOCK(stcb);
4522                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4523                                                 SCTP_TCB_UNLOCK(stcb);
4524                                         }
4525                                         SCTP_INP_RUNLOCK(inp);
4526                                 }
4527                         }
4528                         break;
4529                 }
4530         case SCTP_AUTH_DEACTIVATE_KEY:
4531                 {
4532                         struct sctp_authkeyid *keyid;
4533
4534                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4535                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4536
4537                         /* deactivate the key from the right place */
4538                         if (stcb) {
4539                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4541                                         error = EINVAL;
4542                                 }
4543                                 SCTP_TCB_UNLOCK(stcb);
4544                         } else {
4545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4547                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4548                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4549                                         SCTP_INP_WLOCK(inp);
4550                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4551                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4552                                                 error = EINVAL;
4553                                         }
4554                                         SCTP_INP_WUNLOCK(inp);
4555                                 }
4556                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4557                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4558                                         SCTP_INP_RLOCK(inp);
4559                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4560                                                 SCTP_TCB_LOCK(stcb);
4561                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4562                                                 SCTP_TCB_UNLOCK(stcb);
4563                                         }
4564                                         SCTP_INP_RUNLOCK(inp);
4565                                 }
4566                         }
4567                         break;
4568                 }
4569         case SCTP_ENABLE_STREAM_RESET:
4570                 {
4571                         struct sctp_assoc_value *av;
4572
4573                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4574                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4575                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4576                                 error = EINVAL;
4577                                 break;
4578                         }
4579                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4580                         if (stcb) {
4581                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4582                                 SCTP_TCB_UNLOCK(stcb);
4583                         } else {
4584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4586                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4587                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4588                                         SCTP_INP_WLOCK(inp);
4589                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4590                                         SCTP_INP_WUNLOCK(inp);
4591                                 }
4592                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4593                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4594                                         SCTP_INP_RLOCK(inp);
4595                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4596                                                 SCTP_TCB_LOCK(stcb);
4597                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4598                                                 SCTP_TCB_UNLOCK(stcb);
4599                                         }
4600                                         SCTP_INP_RUNLOCK(inp);
4601                                 }
4602                         }
4603                         break;
4604                 }
4605         case SCTP_RESET_STREAMS:
4606                 {
4607                         struct sctp_reset_streams *strrst;
4608                         int i, send_out = 0;
4609                         int send_in = 0;
4610
4611                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4612                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4613                         if (stcb == NULL) {
4614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4615                                 error = ENOENT;
4616                                 break;
4617                         }
4618                         if (stcb->asoc.reconfig_supported == 0) {
4619                                 /*
4620                                  * Peer does not support the chunk type.
4621                                  */
4622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4623                                 error = EOPNOTSUPP;
4624                                 SCTP_TCB_UNLOCK(stcb);
4625                                 break;
4626                         }
4627                         if (sizeof(struct sctp_reset_streams) +
4628                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4629                                 error = EINVAL;
4630                                 SCTP_TCB_UNLOCK(stcb);
4631                                 break;
4632                         }
4633                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4634                                 send_in = 1;
4635                                 if (stcb->asoc.stream_reset_outstanding) {
4636                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4637                                         error = EALREADY;
4638                                         SCTP_TCB_UNLOCK(stcb);
4639                                         break;
4640                                 }
4641                         }
4642                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4643                                 send_out = 1;
4644                         }
4645                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4646                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4647                                 error = ENOMEM;
4648                                 SCTP_TCB_UNLOCK(stcb);
4649                                 break;
4650                         }
4651                         if ((send_in == 0) && (send_out == 0)) {
4652                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4653                                 error = EINVAL;
4654                                 SCTP_TCB_UNLOCK(stcb);
4655                                 break;
4656                         }
4657                         for (i = 0; i < strrst->srs_number_streams; i++) {
4658                                 if ((send_in) &&
4659                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4660                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4661                                         error = EINVAL;
4662                                         break;
4663                                 }
4664                                 if ((send_out) &&
4665                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4667                                         error = EINVAL;
4668                                         break;
4669                                 }
4670                         }
4671                         if (error) {
4672                                 SCTP_TCB_UNLOCK(stcb);
4673                                 break;
4674                         }
4675                         if (send_out) {
4676                                 int cnt;
4677                                 uint16_t strm;
4678
4679                                 if (strrst->srs_number_streams) {
4680                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4681                                                 strm = strrst->srs_stream_list[i];
4682                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4683                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4684                                                         cnt++;
4685                                                 }
4686                                         }
4687                                 } else {
4688                                         /* Its all */
4689                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4690                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4691                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4692                                                         cnt++;
4693                                                 }
4694                                         }
4695                                 }
4696                         }
4697                         if (send_in) {
4698                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4699                                     strrst->srs_stream_list,
4700                                     send_in, 0, 0, 0, 0, 0);
4701                         } else {
4702                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4703                         }
4704                         if (error == 0) {
4705                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4706                         } else {
4707                                 /*
4708                                  * For outgoing streams don't report any
4709                                  * problems in sending the request to the
4710                                  * application. XXX: Double check resetting
4711                                  * incoming streams.
4712                                  */
4713                                 error = 0;
4714                         }
4715                         SCTP_TCB_UNLOCK(stcb);
4716                         break;
4717                 }
4718         case SCTP_ADD_STREAMS:
4719                 {
4720                         struct sctp_add_streams *stradd;
4721                         uint8_t addstream = 0;
4722                         uint16_t add_o_strmcnt = 0;
4723                         uint16_t add_i_strmcnt = 0;
4724
4725                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4726                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4727                         if (stcb == NULL) {
4728                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4729                                 error = ENOENT;
4730                                 break;
4731                         }
4732                         if (stcb->asoc.reconfig_supported == 0) {
4733                                 /*
4734                                  * Peer does not support the chunk type.
4735                                  */
4736                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4737                                 error = EOPNOTSUPP;
4738                                 SCTP_TCB_UNLOCK(stcb);
4739                                 break;
4740                         }
4741                         if (stcb->asoc.stream_reset_outstanding) {
4742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4743                                 error = EALREADY;
4744                                 SCTP_TCB_UNLOCK(stcb);
4745                                 break;
4746                         }
4747                         if ((stradd->sas_outstrms == 0) &&
4748                             (stradd->sas_instrms == 0)) {
4749                                 error = EINVAL;
4750                                 goto skip_stuff;
4751                         }
4752                         if (stradd->sas_outstrms) {
4753                                 addstream = 1;
4754                                 /* We allocate here */
4755                                 add_o_strmcnt = stradd->sas_outstrms;
4756                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4757                                         /* You can't have more than 64k */
4758                                         error = EINVAL;
4759                                         goto skip_stuff;
4760                                 }
4761                         }
4762                         if (stradd->sas_instrms) {
4763                                 int cnt;
4764
4765                                 addstream |= 2;
4766                                 /*
4767                                  * We allocate inside
4768                                  * sctp_send_str_reset_req()
4769                                  */
4770                                 add_i_strmcnt = stradd->sas_instrms;
4771                                 cnt = add_i_strmcnt;
4772                                 cnt += stcb->asoc.streamincnt;
4773                                 if (cnt > 0x0000ffff) {
4774                                         /* You can't have more than 64k */
4775                                         error = EINVAL;
4776                                         goto skip_stuff;
4777                                 }
4778                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4779                                         /* More than you are allowed */
4780                                         error = EINVAL;
4781                                         goto skip_stuff;
4782                                 }
4783                         }
4784                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4785                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4786         skip_stuff:
4787                         SCTP_TCB_UNLOCK(stcb);
4788                         break;
4789                 }
4790         case SCTP_RESET_ASSOC:
4791                 {
4792                         int i;
4793                         uint32_t *value;
4794
4795                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4796                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4797                         if (stcb == NULL) {
4798                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4799                                 error = ENOENT;
4800                                 break;
4801                         }
4802                         if (stcb->asoc.reconfig_supported == 0) {
4803                                 /*
4804                                  * Peer does not support the chunk type.
4805                                  */
4806                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4807                                 error = EOPNOTSUPP;
4808                                 SCTP_TCB_UNLOCK(stcb);
4809                                 break;
4810                         }
4811                         if (stcb->asoc.stream_reset_outstanding) {
4812                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4813                                 error = EALREADY;
4814                                 SCTP_TCB_UNLOCK(stcb);
4815                                 break;
4816                         }
4817                         /*
4818                          * Is there any data pending in the send or sent
4819                          * queues?
4820                          */
4821                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4822                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4823                 busy_out:
4824                                 error = EBUSY;
4825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4826                                 SCTP_TCB_UNLOCK(stcb);
4827                                 break;
4828                         }
4829                         /* Do any streams have data queued? */
4830                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4831                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4832                                         goto busy_out;
4833                                 }
4834                         }
4835                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4836                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4837                         SCTP_TCB_UNLOCK(stcb);
4838                         break;
4839                 }
4840         case SCTP_CONNECT_X:
4841                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4842                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4843                         error = EINVAL;
4844                         break;
4845                 }
4846                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4847                 break;
4848         case SCTP_CONNECT_X_DELAYED:
4849                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4850                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4851                         error = EINVAL;
4852                         break;
4853                 }
4854                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4855                 break;
4856         case SCTP_CONNECT_X_COMPLETE:
4857                 {
4858                         struct sockaddr *sa;
4859
4860                         /* FIXME MT: check correct? */
4861                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4862
4863                         /* find tcb */
4864                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4865                                 SCTP_INP_RLOCK(inp);
4866                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4867                                 if (stcb) {
4868                                         SCTP_TCB_LOCK(stcb);
4869                                 }
4870                                 SCTP_INP_RUNLOCK(inp);
4871                         } else {
4872                                 /*
4873                                  * We increment here since
4874                                  * sctp_findassociation_ep_addr() wil do a
4875                                  * decrement if it finds the stcb as long as
4876                                  * the locked tcb (last argument) is NOT a
4877                                  * TCB.. aka NULL.
4878                                  */
4879                                 SCTP_INP_INCR_REF(inp);
4880                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4881                                 if (stcb == NULL) {
4882                                         SCTP_INP_DECR_REF(inp);
4883                                 }
4884                         }
4885
4886                         if (stcb == NULL) {
4887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4888                                 error = ENOENT;
4889                                 break;
4890                         }
4891                         if (stcb->asoc.delayed_connection == 1) {
4892                                 stcb->asoc.delayed_connection = 0;
4893                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4894                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4895                                     stcb->asoc.primary_destination,
4896                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4897                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4898                         } else {
4899                                 /*
4900                                  * already expired or did not use delayed
4901                                  * connectx
4902                                  */
4903                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4904                                 error = EALREADY;
4905                         }
4906                         SCTP_TCB_UNLOCK(stcb);
4907                         break;
4908                 }
4909         case SCTP_MAX_BURST:
4910                 {
4911                         struct sctp_assoc_value *av;
4912
4913                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4914                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4915
4916                         if (stcb) {
4917                                 stcb->asoc.max_burst = av->assoc_value;
4918                                 SCTP_TCB_UNLOCK(stcb);
4919                         } else {
4920                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4921                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4922                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4923                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4924                                         SCTP_INP_WLOCK(inp);
4925                                         inp->sctp_ep.max_burst = av->assoc_value;
4926                                         SCTP_INP_WUNLOCK(inp);
4927                                 }
4928                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4929                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4930                                         SCTP_INP_RLOCK(inp);
4931                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4932                                                 SCTP_TCB_LOCK(stcb);
4933                                                 stcb->asoc.max_burst = av->assoc_value;
4934                                                 SCTP_TCB_UNLOCK(stcb);
4935                                         }
4936                                         SCTP_INP_RUNLOCK(inp);
4937                                 }
4938                         }
4939                         break;
4940                 }
4941         case SCTP_MAXSEG:
4942                 {
4943                         struct sctp_assoc_value *av;
4944                         int ovh;
4945
4946                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4947                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4948
4949                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4950                                 ovh = SCTP_MED_OVERHEAD;
4951                         } else {
4952                                 ovh = SCTP_MED_V4_OVERHEAD;
4953                         }
4954                         if (stcb) {
4955                                 if (av->assoc_value) {
4956                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4957                                 } else {
4958                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4959                                 }
4960                                 SCTP_TCB_UNLOCK(stcb);
4961                         } else {
4962                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4963                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4964                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4965                                         SCTP_INP_WLOCK(inp);
4966                                         /*
4967                                          * FIXME MT: I think this is not in
4968                                          * tune with the API ID
4969                                          */
4970                                         if (av->assoc_value) {
4971                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4972                                         } else {
4973                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4974                                         }
4975                                         SCTP_INP_WUNLOCK(inp);
4976                                 } else {
4977                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4978                                         error = EINVAL;
4979                                 }
4980                         }
4981                         break;
4982                 }
4983         case SCTP_EVENTS:
4984                 {
4985                         struct sctp_event_subscribe *events;
4986
4987                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4988
4989                         SCTP_INP_WLOCK(inp);
4990                         if (events->sctp_data_io_event) {
4991                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4992                         } else {
4993                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4994                         }
4995
4996                         if (events->sctp_association_event) {
4997                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4998                         } else {
4999                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5000                         }
5001
5002                         if (events->sctp_address_event) {
5003                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5004                         } else {
5005                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5006                         }
5007
5008                         if (events->sctp_send_failure_event) {
5009                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5010                         } else {
5011                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5012                         }
5013
5014                         if (events->sctp_peer_error_event) {
5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5016                         } else {
5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5018                         }
5019
5020                         if (events->sctp_shutdown_event) {
5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5022                         } else {
5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5024                         }
5025
5026                         if (events->sctp_partial_delivery_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5030                         }
5031
5032                         if (events->sctp_adaptation_layer_event) {
5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5034                         } else {
5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5036                         }
5037
5038                         if (events->sctp_authentication_event) {
5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5040                         } else {
5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5042                         }
5043
5044                         if (events->sctp_sender_dry_event) {
5045                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5046                         } else {
5047                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5048                         }
5049
5050                         if (events->sctp_stream_reset_event) {
5051                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5052                         } else {
5053                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5054                         }
5055                         SCTP_INP_WUNLOCK(inp);
5056
5057                         SCTP_INP_RLOCK(inp);
5058                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5059                                 SCTP_TCB_LOCK(stcb);
5060                                 if (events->sctp_association_event) {
5061                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5062                                 } else {
5063                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5064                                 }
5065                                 if (events->sctp_address_event) {
5066                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5067                                 } else {
5068                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5069                                 }
5070                                 if (events->sctp_send_failure_event) {
5071                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5072                                 } else {
5073                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5074                                 }
5075                                 if (events->sctp_peer_error_event) {
5076                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5077                                 } else {
5078                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5079                                 }
5080                                 if (events->sctp_shutdown_event) {
5081                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5082                                 } else {
5083                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5084                                 }
5085                                 if (events->sctp_partial_delivery_event) {
5086                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5087                                 } else {
5088                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5089                                 }
5090                                 if (events->sctp_adaptation_layer_event) {
5091                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5092                                 } else {
5093                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5094                                 }
5095                                 if (events->sctp_authentication_event) {
5096                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5097                                 } else {
5098                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5099                                 }
5100                                 if (events->sctp_sender_dry_event) {
5101                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5102                                 } else {
5103                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5104                                 }
5105                                 if (events->sctp_stream_reset_event) {
5106                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5107                                 } else {
5108                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5109                                 }
5110                                 SCTP_TCB_UNLOCK(stcb);
5111                         }
5112                         /*
5113                          * Send up the sender dry event only for 1-to-1
5114                          * style sockets.
5115                          */
5116                         if (events->sctp_sender_dry_event) {
5117                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5118                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5119                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5120                                         if (stcb) {
5121                                                 SCTP_TCB_LOCK(stcb);
5122                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5123                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5124                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5125                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5126                                                 }
5127                                                 SCTP_TCB_UNLOCK(stcb);
5128                                         }
5129                                 }
5130                         }
5131                         SCTP_INP_RUNLOCK(inp);
5132                         break;
5133                 }
5134         case SCTP_ADAPTATION_LAYER:
5135                 {
5136                         struct sctp_setadaptation *adap_bits;
5137
5138                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5139                         SCTP_INP_WLOCK(inp);
5140                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5141                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5142                         SCTP_INP_WUNLOCK(inp);
5143                         break;
5144                 }
5145 #ifdef SCTP_DEBUG
5146         case SCTP_SET_INITIAL_DBG_SEQ:
5147                 {
5148                         uint32_t *vvv;
5149
5150                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5151                         SCTP_INP_WLOCK(inp);
5152                         inp->sctp_ep.initial_sequence_debug = *vvv;
5153                         SCTP_INP_WUNLOCK(inp);
5154                         break;
5155                 }
5156 #endif
5157         case SCTP_DEFAULT_SEND_PARAM:
5158                 {
5159                         struct sctp_sndrcvinfo *s_info;
5160
5161                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5162                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5163
5164                         if (stcb) {
5165                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5166                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5167                                 } else {
5168                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5169                                         error = EINVAL;
5170                                 }
5171                                 SCTP_TCB_UNLOCK(stcb);
5172                         } else {
5173                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5174                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5175                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5176                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5177                                         SCTP_INP_WLOCK(inp);
5178                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5179                                         SCTP_INP_WUNLOCK(inp);
5180                                 }
5181                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5182                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5183                                         SCTP_INP_RLOCK(inp);
5184                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5185                                                 SCTP_TCB_LOCK(stcb);
5186                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5187                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5188                                                 }
5189                                                 SCTP_TCB_UNLOCK(stcb);
5190                                         }
5191                                         SCTP_INP_RUNLOCK(inp);
5192                                 }
5193                         }
5194                         break;
5195                 }
5196         case SCTP_PEER_ADDR_PARAMS:
5197                 {
5198                         struct sctp_paddrparams *paddrp;
5199                         struct sctp_nets *net;
5200                         struct sockaddr *addr;
5201 #if defined(INET) && defined(INET6)
5202                         struct sockaddr_in sin_store;
5203 #endif
5204
5205                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5206                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5207
5208 #if defined(INET) && defined(INET6)
5209                         if (paddrp->spp_address.ss_family == AF_INET6) {
5210                                 struct sockaddr_in6 *sin6;
5211
5212                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5213                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5214                                         in6_sin6_2_sin(&sin_store, sin6);
5215                                         addr = (struct sockaddr *)&sin_store;
5216                                 } else {
5217                                         addr = (struct sockaddr *)&paddrp->spp_address;
5218                                 }
5219                         } else {
5220                                 addr = (struct sockaddr *)&paddrp->spp_address;
5221                         }
5222 #else
5223                         addr = (struct sockaddr *)&paddrp->spp_address;
5224 #endif
5225                         if (stcb != NULL) {
5226                                 net = sctp_findnet(stcb, addr);
5227                         } else {
5228                                 /*
5229                                  * We increment here since
5230                                  * sctp_findassociation_ep_addr() wil do a
5231                                  * decrement if it finds the stcb as long as
5232                                  * the locked tcb (last argument) is NOT a
5233                                  * TCB.. aka NULL.
5234                                  */
5235                                 net = NULL;
5236                                 SCTP_INP_INCR_REF(inp);
5237                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5238                                     &net, NULL, NULL);
5239                                 if (stcb == NULL) {
5240                                         SCTP_INP_DECR_REF(inp);
5241                                 }
5242                         }
5243                         if ((stcb != NULL) && (net == NULL)) {
5244 #ifdef INET
5245                                 if (addr->sa_family == AF_INET) {
5246
5247                                         struct sockaddr_in *sin;
5248
5249                                         sin = (struct sockaddr_in *)addr;
5250                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5251                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5252                                                 SCTP_TCB_UNLOCK(stcb);
5253                                                 error = EINVAL;
5254                                                 break;
5255                                         }
5256                                 } else
5257 #endif
5258 #ifdef INET6
5259                                 if (addr->sa_family == AF_INET6) {
5260                                         struct sockaddr_in6 *sin6;
5261
5262                                         sin6 = (struct sockaddr_in6 *)addr;
5263                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5264                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5265                                                 SCTP_TCB_UNLOCK(stcb);
5266                                                 error = EINVAL;
5267                                                 break;
5268                                         }
5269                                 } else
5270 #endif
5271                                 {
5272                                         error = EAFNOSUPPORT;
5273                                         SCTP_TCB_UNLOCK(stcb);
5274                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5275                                         break;
5276                                 }
5277                         }
5278                         /* sanity checks */
5279                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5280                                 if (stcb)
5281                                         SCTP_TCB_UNLOCK(stcb);
5282                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5283                                 return (EINVAL);
5284                         }
5285                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5286                                 if (stcb)
5287                                         SCTP_TCB_UNLOCK(stcb);
5288                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5289                                 return (EINVAL);
5290                         }
5291                         if (stcb != NULL) {
5292                                 /************************TCB SPECIFIC SET ******************/
5293                                 if (net != NULL) {
5294                                         /************************NET SPECIFIC SET ******************/
5295                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5296                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5297                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5298                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5299                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5300                                                 }
5301                                                 net->dest_state |= SCTP_ADDR_NOHB;
5302                                         }
5303                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5304                                                 if (paddrp->spp_hbinterval) {
5305                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5306                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5307                                                         net->heart_beat_delay = 0;
5308                                                 }
5309                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5310                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5311                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5312                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5313                                         }
5314                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5315                                                 /* on demand HB */
5316                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5317                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5318                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5319                                         }
5320                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5321                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5322                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5323                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5324                                                 }
5325                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5326                                                 net->mtu = paddrp->spp_pathmtu;
5327                                                 switch (net->ro._l_addr.sa.sa_family) {
5328 #ifdef INET
5329                                                 case AF_INET:
5330                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5331                                                         break;
5332 #endif
5333 #ifdef INET6
5334                                                 case AF_INET6:
5335                                                         net->mtu += SCTP_MIN_OVERHEAD;
5336                                                         break;
5337 #endif
5338                                                 default:
5339                                                         break;
5340                                                 }
5341                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5342                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5343                                                 }
5344                                         }
5345                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5346                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5347                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5348                                                 }
5349                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5350                                         }
5351                                         if (paddrp->spp_pathmaxrxt) {
5352                                                 if (net->dest_state & SCTP_ADDR_PF) {
5353                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5354                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5355                                                         }
5356                                                 } else {
5357                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5358                                                             (net->error_count > net->pf_threshold)) {
5359                                                                 net->dest_state |= SCTP_ADDR_PF;
5360                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5361                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5362                                                                     stcb->sctp_ep, stcb, net,
5363                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5364                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5365                                                         }
5366                                                 }
5367                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5368                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5369                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5370                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5371                                                         }
5372                                                 } else {
5373                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5374                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5375                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5376                                                         }
5377                                                 }
5378                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5379                                         }
5380                                         if (paddrp->spp_flags & SPP_DSCP) {
5381                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5382                                                 net->dscp |= 0x01;
5383                                         }
5384 #ifdef INET6
5385                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5386                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5387                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5388                                                         net->flowlabel |= 0x80000000;
5389                                                 }
5390                                         }
5391 #endif
5392                                 } else {
5393                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5394                                         if (paddrp->spp_pathmaxrxt != 0) {
5395                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5396                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5397                                                         if (net->dest_state & SCTP_ADDR_PF) {
5398                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5399                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5400                                                                 }
5401                                                         } else {
5402                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5403                                                                     (net->error_count > net->pf_threshold)) {
5404                                                                         net->dest_state |= SCTP_ADDR_PF;
5405                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5406                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5407                                                                             stcb->sctp_ep, stcb, net,
5408                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5409                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5410                                                                 }
5411                                                         }
5412                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5413                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5414                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5415                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5416                                                                 }
5417                                                         } else {
5418                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5419                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5420                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5421                                                                 }
5422                                                         }
5423                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5424                                                 }
5425                                         }
5426                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5427                                                 if (paddrp->spp_hbinterval != 0) {
5428                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5429                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5430                                                         stcb->asoc.heart_beat_delay = 0;
5431                                                 }
5432                                                 /* Turn back on the timer */
5433                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5434                                                         if (paddrp->spp_hbinterval != 0) {
5435                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5436                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5437                                                                 net->heart_beat_delay = 0;
5438                                                         }
5439                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5440                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5441                                                         }
5442                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5443                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5444                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5445                                                 }
5446                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5447                                         }
5448                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5449                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5450                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5451                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5452                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5453                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5454                                                                             inp, stcb, net,
5455                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5456                                                                 }
5457                                                         }
5458                                                 }
5459                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5460                                         }
5461                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5462                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5463                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5464                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5465                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5466                                                         }
5467                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5468                                                         net->mtu = paddrp->spp_pathmtu;
5469                                                         switch (net->ro._l_addr.sa.sa_family) {
5470 #ifdef INET
5471                                                         case AF_INET:
5472                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5473                                                                 break;
5474 #endif
5475 #ifdef INET6
5476                                                         case AF_INET6:
5477                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5478                                                                 break;
5479 #endif
5480                                                         default:
5481                                                                 break;
5482                                                         }
5483                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5484                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5485                                                         }
5486                                                 }
5487                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5488                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5489                                         }
5490                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5491                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5492                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5493                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5494                                                         }
5495                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5496                                                 }
5497                                                 stcb->asoc.default_mtu = 0;
5498                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5499                                         }
5500                                         if (paddrp->spp_flags & SPP_DSCP) {
5501                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5502                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5503                                                         net->dscp |= 0x01;
5504                                                 }
5505                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5506                                                 stcb->asoc.default_dscp |= 0x01;
5507                                         }
5508 #ifdef INET6
5509                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5510                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5511                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5512                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5513                                                                 net->flowlabel |= 0x80000000;
5514                                                         }
5515                                                 }
5516                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5517                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5518                                         }
5519 #endif
5520                                 }
5521                                 SCTP_TCB_UNLOCK(stcb);
5522                         } else {
5523                                 /************************NO TCB, SET TO default stuff ******************/
5524                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5525                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5526                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5527                                         SCTP_INP_WLOCK(inp);
5528                                         /*
5529                                          * For the TOS/FLOWLABEL stuff you
5530                                          * set it with the options on the
5531                                          * socket
5532                                          */
5533                                         if (paddrp->spp_pathmaxrxt != 0) {
5534                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5535                                         }
5536                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5537                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5538                                         else if (paddrp->spp_hbinterval != 0) {
5539                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5540                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5541                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5542                                         }
5543                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5544                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5545                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5546                                                 } else if (paddrp->spp_hbinterval) {
5547                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5548                                                 }
5549                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5550                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5551                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5552                                         }
5553                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5554                                                 inp->sctp_ep.default_mtu = 0;
5555                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5556                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5557                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5558                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5559                                                 }
5560                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5561                                         }
5562                                         if (paddrp->spp_flags & SPP_DSCP) {
5563                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5564                                                 inp->sctp_ep.default_dscp |= 0x01;
5565                                         }
5566 #ifdef INET6
5567                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5568                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5569                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5570                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5571                                                 }
5572                                         }
5573 #endif
5574                                         SCTP_INP_WUNLOCK(inp);
5575                                 } else {
5576                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5577                                         error = EINVAL;
5578                                 }
5579                         }
5580                         break;
5581                 }
5582         case SCTP_RTOINFO:
5583                 {
5584                         struct sctp_rtoinfo *srto;
5585                         uint32_t new_init, new_min, new_max;
5586
5587                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5588                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5589
5590                         if (stcb) {
5591                                 if (srto->srto_initial)
5592                                         new_init = srto->srto_initial;
5593                                 else
5594                                         new_init = stcb->asoc.initial_rto;
5595                                 if (srto->srto_max)
5596                                         new_max = srto->srto_max;
5597                                 else
5598                                         new_max = stcb->asoc.maxrto;
5599                                 if (srto->srto_min)
5600                                         new_min = srto->srto_min;
5601                                 else
5602                                         new_min = stcb->asoc.minrto;
5603                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5604                                         stcb->asoc.initial_rto = new_init;
5605                                         stcb->asoc.maxrto = new_max;
5606                                         stcb->asoc.minrto = new_min;
5607                                 } else {
5608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5609                                         error = EINVAL;
5610                                 }
5611                                 SCTP_TCB_UNLOCK(stcb);
5612                         } else {
5613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5615                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5616                                         SCTP_INP_WLOCK(inp);
5617                                         if (srto->srto_initial)
5618                                                 new_init = srto->srto_initial;
5619                                         else
5620                                                 new_init = inp->sctp_ep.initial_rto;
5621                                         if (srto->srto_max)
5622                                                 new_max = srto->srto_max;
5623                                         else
5624                                                 new_max = inp->sctp_ep.sctp_maxrto;
5625                                         if (srto->srto_min)
5626                                                 new_min = srto->srto_min;
5627                                         else
5628                                                 new_min = inp->sctp_ep.sctp_minrto;
5629                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5630                                                 inp->sctp_ep.initial_rto = new_init;
5631                                                 inp->sctp_ep.sctp_maxrto = new_max;
5632                                                 inp->sctp_ep.sctp_minrto = new_min;
5633                                         } else {
5634                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5635                                                 error = EINVAL;
5636                                         }
5637                                         SCTP_INP_WUNLOCK(inp);
5638                                 } else {
5639                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5640                                         error = EINVAL;
5641                                 }
5642                         }
5643                         break;
5644                 }
5645         case SCTP_ASSOCINFO:
5646                 {
5647                         struct sctp_assocparams *sasoc;
5648
5649                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5650                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5651                         if (sasoc->sasoc_cookie_life) {
5652                                 /* boundary check the cookie life */
5653                                 if (sasoc->sasoc_cookie_life < 1000)
5654                                         sasoc->sasoc_cookie_life = 1000;
5655                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5656                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5657                                 }
5658                         }
5659                         if (stcb) {
5660                                 if (sasoc->sasoc_asocmaxrxt)
5661                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5662                                 if (sasoc->sasoc_cookie_life) {
5663                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5664                                 }
5665                                 SCTP_TCB_UNLOCK(stcb);
5666                         } else {
5667                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5668                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5669                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5670                                         SCTP_INP_WLOCK(inp);
5671                                         if (sasoc->sasoc_asocmaxrxt)
5672                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5673                                         if (sasoc->sasoc_cookie_life) {
5674                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5675                                         }
5676                                         SCTP_INP_WUNLOCK(inp);
5677                                 } else {
5678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5679                                         error = EINVAL;
5680                                 }
5681                         }
5682                         break;
5683                 }
5684         case SCTP_INITMSG:
5685                 {
5686                         struct sctp_initmsg *sinit;
5687
5688                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5689                         SCTP_INP_WLOCK(inp);
5690                         if (sinit->sinit_num_ostreams)
5691                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5692
5693                         if (sinit->sinit_max_instreams)
5694                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5695
5696                         if (sinit->sinit_max_attempts)
5697                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5698
5699                         if (sinit->sinit_max_init_timeo)
5700                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5701                         SCTP_INP_WUNLOCK(inp);
5702                         break;
5703                 }
5704         case SCTP_PRIMARY_ADDR:
5705                 {
5706                         struct sctp_setprim *spa;
5707                         struct sctp_nets *net;
5708                         struct sockaddr *addr;
5709 #if defined(INET) && defined(INET6)
5710                         struct sockaddr_in sin_store;
5711 #endif
5712
5713                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5714                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5715
5716 #if defined(INET) && defined(INET6)
5717                         if (spa->ssp_addr.ss_family == AF_INET6) {
5718                                 struct sockaddr_in6 *sin6;
5719
5720                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5721                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5722                                         in6_sin6_2_sin(&sin_store, sin6);
5723                                         addr = (struct sockaddr *)&sin_store;
5724                                 } else {
5725                                         addr = (struct sockaddr *)&spa->ssp_addr;
5726                                 }
5727                         } else {
5728                                 addr = (struct sockaddr *)&spa->ssp_addr;
5729                         }
5730 #else
5731                         addr = (struct sockaddr *)&spa->ssp_addr;
5732 #endif
5733                         if (stcb != NULL) {
5734                                 net = sctp_findnet(stcb, addr);
5735                         } else {
5736                                 /*
5737                                  * We increment here since
5738                                  * sctp_findassociation_ep_addr() wil do a
5739                                  * decrement if it finds the stcb as long as
5740                                  * the locked tcb (last argument) is NOT a
5741                                  * TCB.. aka NULL.
5742                                  */
5743                                 net = NULL;
5744                                 SCTP_INP_INCR_REF(inp);
5745                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5746                                     &net, NULL, NULL);
5747                                 if (stcb == NULL) {
5748                                         SCTP_INP_DECR_REF(inp);
5749                                 }
5750                         }
5751
5752                         if ((stcb != NULL) && (net != NULL)) {
5753                                 if (net != stcb->asoc.primary_destination) {
5754                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5755                                                 /* Ok we need to set it */
5756                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5757                                                         if ((stcb->asoc.alternate) &&
5758                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5759                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5760                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5761                                                                 stcb->asoc.alternate = NULL;
5762                                                         }
5763                                                 } else {
5764                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5765                                                         error = EINVAL;
5766                                                 }
5767                                         } else {
5768                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5769                                                 error = EINVAL;
5770                                         }
5771                                 }
5772                         } else {
5773                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5774                                 error = EINVAL;
5775                         }
5776                         if (stcb != NULL) {
5777                                 SCTP_TCB_UNLOCK(stcb);
5778                         }
5779                         break;
5780                 }
5781         case SCTP_SET_DYNAMIC_PRIMARY:
5782                 {
5783                         union sctp_sockstore *ss;
5784
5785                         error = priv_check(curthread,
5786                             PRIV_NETINET_RESERVEDPORT);
5787                         if (error)
5788                                 break;
5789
5790                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5791                         /* SUPER USER CHECK? */
5792                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5793                         break;
5794                 }
5795         case SCTP_SET_PEER_PRIMARY_ADDR:
5796                 {
5797                         struct sctp_setpeerprim *sspp;
5798                         struct sockaddr *addr;
5799 #if defined(INET) && defined(INET6)
5800                         struct sockaddr_in sin_store;
5801 #endif
5802
5803                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5804                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5805                         if (stcb != NULL) {
5806                                 struct sctp_ifa *ifa;
5807
5808 #if defined(INET) && defined(INET6)
5809                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5810                                         struct sockaddr_in6 *sin6;
5811
5812                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5813                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5814                                                 in6_sin6_2_sin(&sin_store, sin6);
5815                                                 addr = (struct sockaddr *)&sin_store;
5816                                         } else {
5817                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5818                                         }
5819                                 } else {
5820                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5821                                 }
5822 #else
5823                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5824 #endif
5825                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5826                                 if (ifa == NULL) {
5827                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5828                                         error = EINVAL;
5829                                         goto out_of_it;
5830                                 }
5831                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5832                                         /*
5833                                          * Must validate the ifa found is in
5834                                          * our ep
5835                                          */
5836                                         struct sctp_laddr *laddr;
5837                                         int found = 0;
5838
5839                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5840                                                 if (laddr->ifa == NULL) {
5841                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5842                                                             __func__);
5843                                                         continue;
5844                                                 }
5845                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5846                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5847                                                         continue;
5848                                                 }
5849                                                 if (laddr->ifa == ifa) {
5850                                                         found = 1;
5851                                                         break;
5852                                                 }
5853                                         }
5854                                         if (!found) {
5855                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5856                                                 error = EINVAL;
5857                                                 goto out_of_it;
5858                                         }
5859                                 } else {
5860                                         switch (addr->sa_family) {
5861 #ifdef INET
5862                                         case AF_INET:
5863                                                 {
5864                                                         struct sockaddr_in *sin;
5865
5866                                                         sin = (struct sockaddr_in *)addr;
5867                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5868                                                             &sin->sin_addr) != 0) {
5869                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5870                                                                 error = EINVAL;
5871                                                                 goto out_of_it;
5872                                                         }
5873                                                         break;
5874                                                 }
5875 #endif
5876 #ifdef INET6
5877                                         case AF_INET6:
5878                                                 {
5879                                                         struct sockaddr_in6 *sin6;
5880
5881                                                         sin6 = (struct sockaddr_in6 *)addr;
5882                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5883                                                             &sin6->sin6_addr) != 0) {
5884                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5885                                                                 error = EINVAL;
5886                                                                 goto out_of_it;
5887                                                         }
5888                                                         break;
5889                                                 }
5890 #endif
5891                                         default:
5892                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5893                                                 error = EINVAL;
5894                                                 goto out_of_it;
5895                                         }
5896                                 }
5897                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5898                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5899                                         error = EINVAL;
5900                                 }
5901                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5902                 out_of_it:
5903                                 SCTP_TCB_UNLOCK(stcb);
5904                         } else {
5905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5906                                 error = EINVAL;
5907                         }
5908                         break;
5909                 }
5910         case SCTP_BINDX_ADD_ADDR:
5911                 {
5912                         struct sctp_getaddresses *addrs;
5913                         struct thread *td;
5914
5915                         td = (struct thread *)p;
5916                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5917                             optsize);
5918 #ifdef INET
5919                         if (addrs->addr->sa_family == AF_INET) {
5920                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5921                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                                         error = EINVAL;
5923                                         break;
5924                                 }
5925                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5926                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5927                                         break;
5928                                 }
5929                         } else
5930 #endif
5931 #ifdef INET6
5932                         if (addrs->addr->sa_family == AF_INET6) {
5933                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5934                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5935                                         error = EINVAL;
5936                                         break;
5937                                 }
5938                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5939                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5940                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5941                                         break;
5942                                 }
5943                         } else
5944 #endif
5945                         {
5946                                 error = EAFNOSUPPORT;
5947                                 break;
5948                         }
5949                         sctp_bindx_add_address(so, inp, addrs->addr,
5950                             addrs->sget_assoc_id, vrf_id,
5951                             &error, p);
5952                         break;
5953                 }
5954         case SCTP_BINDX_REM_ADDR:
5955                 {
5956                         struct sctp_getaddresses *addrs;
5957                         struct thread *td;
5958
5959                         td = (struct thread *)p;
5960
5961                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5962 #ifdef INET
5963                         if (addrs->addr->sa_family == AF_INET) {
5964                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5966                                         error = EINVAL;
5967                                         break;
5968                                 }
5969                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5970                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5971                                         break;
5972                                 }
5973                         } else
5974 #endif
5975 #ifdef INET6
5976                         if (addrs->addr->sa_family == AF_INET6) {
5977                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5979                                         error = EINVAL;
5980                                         break;
5981                                 }
5982                                 if (td != NULL &&
5983                                     (error = prison_local_ip6(td->td_ucred,
5984                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5985                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5986                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5987                                         break;
5988                                 }
5989                         } else
5990 #endif
5991                         {
5992                                 error = EAFNOSUPPORT;
5993                                 break;
5994                         }
5995                         sctp_bindx_delete_address(inp, addrs->addr,
5996                             addrs->sget_assoc_id, vrf_id,
5997                             &error);
5998                         break;
5999                 }
6000         case SCTP_EVENT:
6001                 {
6002                         struct sctp_event *event;
6003                         uint32_t event_type;
6004
6005                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6006                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6007                         switch (event->se_type) {
6008                         case SCTP_ASSOC_CHANGE:
6009                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6010                                 break;
6011                         case SCTP_PEER_ADDR_CHANGE:
6012                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6013                                 break;
6014                         case SCTP_REMOTE_ERROR:
6015                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6016                                 break;
6017                         case SCTP_SEND_FAILED:
6018                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6019                                 break;
6020                         case SCTP_SHUTDOWN_EVENT:
6021                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6022                                 break;
6023                         case SCTP_ADAPTATION_INDICATION:
6024                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6025                                 break;
6026                         case SCTP_PARTIAL_DELIVERY_EVENT:
6027                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6028                                 break;
6029                         case SCTP_AUTHENTICATION_EVENT:
6030                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6031                                 break;
6032                         case SCTP_STREAM_RESET_EVENT:
6033                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6034                                 break;
6035                         case SCTP_SENDER_DRY_EVENT:
6036                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6037                                 break;
6038                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6039                                 event_type = 0;
6040                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6041                                 error = ENOTSUP;
6042                                 break;
6043                         case SCTP_ASSOC_RESET_EVENT:
6044                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6045                                 break;
6046                         case SCTP_STREAM_CHANGE_EVENT:
6047                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6048                                 break;
6049                         case SCTP_SEND_FAILED_EVENT:
6050                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6051                                 break;
6052                         default:
6053                                 event_type = 0;
6054                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6055                                 error = EINVAL;
6056                                 break;
6057                         }
6058                         if (event_type > 0) {
6059                                 if (stcb) {
6060                                         if (event->se_on) {
6061                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6062                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6063                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6064                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6065                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6066                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6067                                                         }
6068                                                 }
6069                                         } else {
6070                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6071                                         }
6072                                         SCTP_TCB_UNLOCK(stcb);
6073                                 } else {
6074                                         /*
6075                                          * We don't want to send up a storm
6076                                          * of events, so return an error for
6077                                          * sender dry events
6078                                          */
6079                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6080                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6081                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6082                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6083                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6084                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6085                                                 error = ENOTSUP;
6086                                                 break;
6087                                         }
6088                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6089                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6090                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6091                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6092                                                 SCTP_INP_WLOCK(inp);
6093                                                 if (event->se_on) {
6094                                                         sctp_feature_on(inp, event_type);
6095                                                 } else {
6096                                                         sctp_feature_off(inp, event_type);
6097                                                 }
6098                                                 SCTP_INP_WUNLOCK(inp);
6099                                         }
6100                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6101                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6102                                                 SCTP_INP_RLOCK(inp);
6103                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6104                                                         SCTP_TCB_LOCK(stcb);
6105                                                         if (event->se_on) {
6106                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6107                                                         } else {
6108                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6109                                                         }
6110                                                         SCTP_TCB_UNLOCK(stcb);
6111                                                 }
6112                                                 SCTP_INP_RUNLOCK(inp);
6113                                         }
6114                                 }
6115                         }
6116                         break;
6117                 }
6118         case SCTP_RECVRCVINFO:
6119                 {
6120                         int *onoff;
6121
6122                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6123                         SCTP_INP_WLOCK(inp);
6124                         if (*onoff != 0) {
6125                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6126                         } else {
6127                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6128                         }
6129                         SCTP_INP_WUNLOCK(inp);
6130                         break;
6131                 }
6132         case SCTP_RECVNXTINFO:
6133                 {
6134                         int *onoff;
6135
6136                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6137                         SCTP_INP_WLOCK(inp);
6138                         if (*onoff != 0) {
6139                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6140                         } else {
6141                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6142                         }
6143                         SCTP_INP_WUNLOCK(inp);
6144                         break;
6145                 }
6146         case SCTP_DEFAULT_SNDINFO:
6147                 {
6148                         struct sctp_sndinfo *info;
6149                         uint16_t policy;
6150
6151                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6152                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6153
6154                         if (stcb) {
6155                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6156                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6157                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6158                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6159                                         stcb->asoc.def_send.sinfo_flags |= policy;
6160                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6161                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6162                                 } else {
6163                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6164                                         error = EINVAL;
6165                                 }
6166                                 SCTP_TCB_UNLOCK(stcb);
6167                         } else {
6168                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6169                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6170                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6171                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6172                                         SCTP_INP_WLOCK(inp);
6173                                         inp->def_send.sinfo_stream = info->snd_sid;
6174                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6175                                         inp->def_send.sinfo_flags = info->snd_flags;
6176                                         inp->def_send.sinfo_flags |= policy;
6177                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6178                                         inp->def_send.sinfo_context = info->snd_context;
6179                                         SCTP_INP_WUNLOCK(inp);
6180                                 }
6181                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6182                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6183                                         SCTP_INP_RLOCK(inp);
6184                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6185                                                 SCTP_TCB_LOCK(stcb);
6186                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6187                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6188                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6189                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6190                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6191                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6192                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6193                                                 }
6194                                                 SCTP_TCB_UNLOCK(stcb);
6195                                         }
6196                                         SCTP_INP_RUNLOCK(inp);
6197                                 }
6198                         }
6199                         break;
6200                 }
6201         case SCTP_DEFAULT_PRINFO:
6202                 {
6203                         struct sctp_default_prinfo *info;
6204
6205                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6206                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6207
6208                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6209                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6210                                 error = EINVAL;
6211                                 break;
6212                         }
6213                         if (stcb) {
6214                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6215                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6216                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6217                                 SCTP_TCB_UNLOCK(stcb);
6218                         } else {
6219                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6220                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6221                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6222                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6223                                         SCTP_INP_WLOCK(inp);
6224                                         inp->def_send.sinfo_flags &= 0xfff0;
6225                                         inp->def_send.sinfo_flags |= info->pr_policy;
6226                                         inp->def_send.sinfo_timetolive = info->pr_value;
6227                                         SCTP_INP_WUNLOCK(inp);
6228                                 }
6229                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6230                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6231                                         SCTP_INP_RLOCK(inp);
6232                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6233                                                 SCTP_TCB_LOCK(stcb);
6234                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6235                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6236                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6237                                                 SCTP_TCB_UNLOCK(stcb);
6238                                         }
6239                                         SCTP_INP_RUNLOCK(inp);
6240                                 }
6241                         }
6242                         break;
6243                 }
6244         case SCTP_PEER_ADDR_THLDS:
6245                 /* Applies to the specific association */
6246                 {
6247                         struct sctp_paddrthlds *thlds;
6248                         struct sctp_nets *net;
6249                         struct sockaddr *addr;
6250 #if defined(INET) && defined(INET6)
6251                         struct sockaddr_in sin_store;
6252 #endif
6253
6254                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6255                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6256
6257 #if defined(INET) && defined(INET6)
6258                         if (thlds->spt_address.ss_family == AF_INET6) {
6259                                 struct sockaddr_in6 *sin6;
6260
6261                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6262                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6263                                         in6_sin6_2_sin(&sin_store, sin6);
6264                                         addr = (struct sockaddr *)&sin_store;
6265                                 } else {
6266                                         addr = (struct sockaddr *)&thlds->spt_address;
6267                                 }
6268                         } else {
6269                                 addr = (struct sockaddr *)&thlds->spt_address;
6270                         }
6271 #else
6272                         addr = (struct sockaddr *)&thlds->spt_address;
6273 #endif
6274                         if (stcb != NULL) {
6275                                 net = sctp_findnet(stcb, addr);
6276                         } else {
6277                                 /*
6278                                  * We increment here since
6279                                  * sctp_findassociation_ep_addr() wil do a
6280                                  * decrement if it finds the stcb as long as
6281                                  * the locked tcb (last argument) is NOT a
6282                                  * TCB.. aka NULL.
6283                                  */
6284                                 net = NULL;
6285                                 SCTP_INP_INCR_REF(inp);
6286                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6287                                     &net, NULL, NULL);
6288                                 if (stcb == NULL) {
6289                                         SCTP_INP_DECR_REF(inp);
6290                                 }
6291                         }
6292                         if ((stcb != NULL) && (net == NULL)) {
6293 #ifdef INET
6294                                 if (addr->sa_family == AF_INET) {
6295
6296                                         struct sockaddr_in *sin;
6297
6298                                         sin = (struct sockaddr_in *)addr;
6299                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6300                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6301                                                 SCTP_TCB_UNLOCK(stcb);
6302                                                 error = EINVAL;
6303                                                 break;
6304                                         }
6305                                 } else
6306 #endif
6307 #ifdef INET6
6308                                 if (addr->sa_family == AF_INET6) {
6309                                         struct sockaddr_in6 *sin6;
6310
6311                                         sin6 = (struct sockaddr_in6 *)addr;
6312                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6313                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6314                                                 SCTP_TCB_UNLOCK(stcb);
6315                                                 error = EINVAL;
6316                                                 break;
6317                                         }
6318                                 } else
6319 #endif
6320                                 {
6321                                         error = EAFNOSUPPORT;
6322                                         SCTP_TCB_UNLOCK(stcb);
6323                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6324                                         break;
6325                                 }
6326                         }
6327                         if (thlds->spt_pathcpthld != 0xffff) {
6328                                 error = EINVAL;
6329                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6330                                 break;
6331                         }
6332                         if (stcb != NULL) {
6333                                 if (net != NULL) {
6334                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6335                                         net->pf_threshold = thlds->spt_pathpfthld;
6336                                         if (net->dest_state & SCTP_ADDR_PF) {
6337                                                 if ((net->error_count > net->failure_threshold) ||
6338                                                     (net->error_count <= net->pf_threshold)) {
6339                                                         net->dest_state &= ~SCTP_ADDR_PF;
6340                                                 }
6341                                         } else {
6342                                                 if ((net->error_count > net->pf_threshold) &&
6343                                                     (net->error_count <= net->failure_threshold)) {
6344                                                         net->dest_state |= SCTP_ADDR_PF;
6345                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6346                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6347                                                             stcb->sctp_ep, stcb, net,
6348                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6349                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6350                                                 }
6351                                         }
6352                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6353                                                 if (net->error_count > net->failure_threshold) {
6354                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6355                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6356                                                 }
6357                                         } else {
6358                                                 if (net->error_count <= net->failure_threshold) {
6359                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6360                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6361                                                 }
6362                                         }
6363                                 } else {
6364                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6365                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6366                                                 net->pf_threshold = thlds->spt_pathpfthld;
6367                                                 if (net->dest_state & SCTP_ADDR_PF) {
6368                                                         if ((net->error_count > net->failure_threshold) ||
6369                                                             (net->error_count <= net->pf_threshold)) {
6370                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6371                                                         }
6372                                                 } else {
6373                                                         if ((net->error_count > net->pf_threshold) &&
6374                                                             (net->error_count <= net->failure_threshold)) {
6375                                                                 net->dest_state |= SCTP_ADDR_PF;
6376                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6377                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6378                                                                     stcb->sctp_ep, stcb, net,
6379                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6380                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6381                                                         }
6382                                                 }
6383                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6384                                                         if (net->error_count > net->failure_threshold) {
6385                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6386                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6387                                                         }
6388                                                 } else {
6389                                                         if (net->error_count <= net->failure_threshold) {
6390                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6391                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6392                                                         }
6393                                                 }
6394                                         }
6395                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6396                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6397                                 }
6398                                 SCTP_TCB_UNLOCK(stcb);
6399                         } else {
6400                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6401                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6402                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6403                                         SCTP_INP_WLOCK(inp);
6404                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6405                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6406                                         SCTP_INP_WUNLOCK(inp);
6407                                 } else {
6408                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6409                                         error = EINVAL;
6410                                 }
6411                         }
6412                         break;
6413                 }
6414         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6415                 {
6416                         struct sctp_udpencaps *encaps;
6417                         struct sctp_nets *net;
6418                         struct sockaddr *addr;
6419 #if defined(INET) && defined(INET6)
6420                         struct sockaddr_in sin_store;
6421 #endif
6422
6423                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6424                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6425
6426 #if defined(INET) && defined(INET6)
6427                         if (encaps->sue_address.ss_family == AF_INET6) {
6428                                 struct sockaddr_in6 *sin6;
6429
6430                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6431                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6432                                         in6_sin6_2_sin(&sin_store, sin6);
6433                                         addr = (struct sockaddr *)&sin_store;
6434                                 } else {
6435                                         addr = (struct sockaddr *)&encaps->sue_address;
6436                                 }
6437                         } else {
6438                                 addr = (struct sockaddr *)&encaps->sue_address;
6439                         }
6440 #else
6441                         addr = (struct sockaddr *)&encaps->sue_address;
6442 #endif
6443                         if (stcb != NULL) {
6444                                 net = sctp_findnet(stcb, addr);
6445                         } else {
6446                                 /*
6447                                  * We increment here since
6448                                  * sctp_findassociation_ep_addr() wil do a
6449                                  * decrement if it finds the stcb as long as
6450                                  * the locked tcb (last argument) is NOT a
6451                                  * TCB.. aka NULL.
6452                                  */
6453                                 net = NULL;
6454                                 SCTP_INP_INCR_REF(inp);
6455                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6456                                 if (stcb == NULL) {
6457                                         SCTP_INP_DECR_REF(inp);
6458                                 }
6459                         }
6460                         if ((stcb != NULL) && (net == NULL)) {
6461 #ifdef INET
6462                                 if (addr->sa_family == AF_INET) {
6463
6464                                         struct sockaddr_in *sin;
6465
6466                                         sin = (struct sockaddr_in *)addr;
6467                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6468                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6469                                                 SCTP_TCB_UNLOCK(stcb);
6470                                                 error = EINVAL;
6471                                                 break;
6472                                         }
6473                                 } else
6474 #endif
6475 #ifdef INET6
6476                                 if (addr->sa_family == AF_INET6) {
6477                                         struct sockaddr_in6 *sin6;
6478
6479                                         sin6 = (struct sockaddr_in6 *)addr;
6480                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6481                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6482                                                 SCTP_TCB_UNLOCK(stcb);
6483                                                 error = EINVAL;
6484                                                 break;
6485                                         }
6486                                 } else
6487 #endif
6488                                 {
6489                                         error = EAFNOSUPPORT;
6490                                         SCTP_TCB_UNLOCK(stcb);
6491                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6492                                         break;
6493                                 }
6494                         }
6495                         if (stcb != NULL) {
6496                                 if (net != NULL) {
6497                                         net->port = encaps->sue_port;
6498                                 } else {
6499                                         stcb->asoc.port = encaps->sue_port;
6500                                 }
6501                                 SCTP_TCB_UNLOCK(stcb);
6502                         } else {
6503                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6504                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6505                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6506                                         SCTP_INP_WLOCK(inp);
6507                                         inp->sctp_ep.port = encaps->sue_port;
6508                                         SCTP_INP_WUNLOCK(inp);
6509                                 } else {
6510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6511                                         error = EINVAL;
6512                                 }
6513                         }
6514                         break;
6515                 }
6516         case SCTP_ECN_SUPPORTED:
6517                 {
6518                         struct sctp_assoc_value *av;
6519
6520                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6521                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6522
6523                         if (stcb) {
6524                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6525                                 error = EINVAL;
6526                                 SCTP_TCB_UNLOCK(stcb);
6527                         } else {
6528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6530                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6531                                         SCTP_INP_WLOCK(inp);
6532                                         if (av->assoc_value == 0) {
6533                                                 inp->ecn_supported = 0;
6534                                         } else {
6535                                                 inp->ecn_supported = 1;
6536                                         }
6537                                         SCTP_INP_WUNLOCK(inp);
6538                                 } else {
6539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6540                                         error = EINVAL;
6541                                 }
6542                         }
6543                         break;
6544                 }
6545         case SCTP_PR_SUPPORTED:
6546                 {
6547                         struct sctp_assoc_value *av;
6548
6549                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6550                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6551
6552                         if (stcb) {
6553                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6554                                 error = EINVAL;
6555                                 SCTP_TCB_UNLOCK(stcb);
6556                         } else {
6557                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6558                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6559                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6560                                         SCTP_INP_WLOCK(inp);
6561                                         if (av->assoc_value == 0) {
6562                                                 inp->prsctp_supported = 0;
6563                                         } else {
6564                                                 inp->prsctp_supported = 1;
6565                                         }
6566                                         SCTP_INP_WUNLOCK(inp);
6567                                 } else {
6568                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6569                                         error = EINVAL;
6570                                 }
6571                         }
6572                         break;
6573                 }
6574         case SCTP_AUTH_SUPPORTED:
6575                 {
6576                         struct sctp_assoc_value *av;
6577
6578                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6579                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6580
6581                         if (stcb) {
6582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6583                                 error = EINVAL;
6584                                 SCTP_TCB_UNLOCK(stcb);
6585                         } else {
6586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6588                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6589                                         if ((av->assoc_value == 0) &&
6590                                             (inp->asconf_supported == 1)) {
6591                                                 /*
6592                                                  * AUTH is required for
6593                                                  * ASCONF
6594                                                  */
6595                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6596                                                 error = EINVAL;
6597                                         } else {
6598                                                 SCTP_INP_WLOCK(inp);
6599                                                 if (av->assoc_value == 0) {
6600                                                         inp->auth_supported = 0;
6601                                                 } else {
6602                                                         inp->auth_supported = 1;
6603                                                 }
6604                                                 SCTP_INP_WUNLOCK(inp);
6605                                         }
6606                                 } else {
6607                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6608                                         error = EINVAL;
6609                                 }
6610                         }
6611                         break;
6612                 }
6613         case SCTP_ASCONF_SUPPORTED:
6614                 {
6615                         struct sctp_assoc_value *av;
6616
6617                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6618                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6619
6620                         if (stcb) {
6621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6622                                 error = EINVAL;
6623                                 SCTP_TCB_UNLOCK(stcb);
6624                         } else {
6625                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6626                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6627                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6628                                         if ((av->assoc_value != 0) &&
6629                                             (inp->auth_supported == 0)) {
6630                                                 /*
6631                                                  * AUTH is required for
6632                                                  * ASCONF
6633                                                  */
6634                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6635                                                 error = EINVAL;
6636                                         } else {
6637                                                 SCTP_INP_WLOCK(inp);
6638                                                 if (av->assoc_value == 0) {
6639                                                         inp->asconf_supported = 0;
6640                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6641                                                             inp->sctp_ep.local_auth_chunks);
6642                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6643                                                             inp->sctp_ep.local_auth_chunks);
6644                                                 } else {
6645                                                         inp->asconf_supported = 1;
6646                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6647                                                             inp->sctp_ep.local_auth_chunks);
6648                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6649                                                             inp->sctp_ep.local_auth_chunks);
6650                                                 }
6651                                                 SCTP_INP_WUNLOCK(inp);
6652                                         }
6653                                 } else {
6654                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6655                                         error = EINVAL;
6656                                 }
6657                         }
6658                         break;
6659                 }
6660         case SCTP_RECONFIG_SUPPORTED:
6661                 {
6662                         struct sctp_assoc_value *av;
6663
6664                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6665                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6666
6667                         if (stcb) {
6668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6669                                 error = EINVAL;
6670                                 SCTP_TCB_UNLOCK(stcb);
6671                         } else {
6672                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6673                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6674                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6675                                         SCTP_INP_WLOCK(inp);
6676                                         if (av->assoc_value == 0) {
6677                                                 inp->reconfig_supported = 0;
6678                                         } else {
6679                                                 inp->reconfig_supported = 1;
6680                                         }
6681                                         SCTP_INP_WUNLOCK(inp);
6682                                 } else {
6683                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6684                                         error = EINVAL;
6685                                 }
6686                         }
6687                         break;
6688                 }
6689         case SCTP_NRSACK_SUPPORTED:
6690                 {
6691                         struct sctp_assoc_value *av;
6692
6693                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6694                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6695
6696                         if (stcb) {
6697                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6698                                 error = EINVAL;
6699                                 SCTP_TCB_UNLOCK(stcb);
6700                         } else {
6701                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6702                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6703                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6704                                         SCTP_INP_WLOCK(inp);
6705                                         if (av->assoc_value == 0) {
6706                                                 inp->nrsack_supported = 0;
6707                                         } else {
6708                                                 inp->nrsack_supported = 1;
6709                                         }
6710                                         SCTP_INP_WUNLOCK(inp);
6711                                 } else {
6712                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6713                                         error = EINVAL;
6714                                 }
6715                         }
6716                         break;
6717                 }
6718         case SCTP_PKTDROP_SUPPORTED:
6719                 {
6720                         struct sctp_assoc_value *av;
6721
6722                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6723                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6724
6725                         if (stcb) {
6726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6727                                 error = EINVAL;
6728                                 SCTP_TCB_UNLOCK(stcb);
6729                         } else {
6730                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6731                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6732                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6733                                         SCTP_INP_WLOCK(inp);
6734                                         if (av->assoc_value == 0) {
6735                                                 inp->pktdrop_supported = 0;
6736                                         } else {
6737                                                 inp->pktdrop_supported = 1;
6738                                         }
6739                                         SCTP_INP_WUNLOCK(inp);
6740                                 } else {
6741                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6742                                         error = EINVAL;
6743                                 }
6744                         }
6745                         break;
6746                 }
6747         case SCTP_MAX_CWND:
6748                 {
6749                         struct sctp_assoc_value *av;
6750                         struct sctp_nets *net;
6751
6752                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6753                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6754
6755                         if (stcb) {
6756                                 stcb->asoc.max_cwnd = av->assoc_value;
6757                                 if (stcb->asoc.max_cwnd > 0) {
6758                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6759                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6760                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6761                                                         net->cwnd = stcb->asoc.max_cwnd;
6762                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6763                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6764                                                         }
6765                                                 }
6766                                         }
6767                                 }
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                                         inp->max_cwnd = av->assoc_value;
6775                                         SCTP_INP_WUNLOCK(inp);
6776                                 } else {
6777                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6778                                         error = EINVAL;
6779                                 }
6780                         }
6781                         break;
6782                 }
6783         default:
6784                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6785                 error = ENOPROTOOPT;
6786                 break;
6787         }                       /* end switch (opt) */
6788         return (error);
6789 }
6790
6791 int
6792 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6793 {
6794         void *optval = NULL;
6795         size_t optsize = 0;
6796         void *p;
6797         int error = 0;
6798         struct sctp_inpcb *inp;
6799
6800         if ((sopt->sopt_level == SOL_SOCKET) &&
6801             (sopt->sopt_name == SO_SETFIB)) {
6802                 inp = (struct sctp_inpcb *)so->so_pcb;
6803                 if (inp == NULL) {
6804                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6805                         return (EINVAL);
6806                 }
6807                 SCTP_INP_WLOCK(inp);
6808                 inp->fibnum = so->so_fibnum;
6809                 SCTP_INP_WUNLOCK(inp);
6810                 return (0);
6811         }
6812         if (sopt->sopt_level != IPPROTO_SCTP) {
6813                 /* wrong proto level... send back up to IP */
6814 #ifdef INET6
6815                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6816                         error = ip6_ctloutput(so, sopt);
6817 #endif                          /* INET6 */
6818 #if defined(INET) && defined(INET6)
6819                 else
6820 #endif
6821 #ifdef INET
6822                         error = ip_ctloutput(so, sopt);
6823 #endif
6824                 return (error);
6825         }
6826         optsize = sopt->sopt_valsize;
6827         if (optsize) {
6828                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6829                 if (optval == NULL) {
6830                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6831                         return (ENOBUFS);
6832                 }
6833                 error = sooptcopyin(sopt, optval, optsize, optsize);
6834                 if (error) {
6835                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6836                         goto out;
6837                 }
6838         }
6839         p = (void *)sopt->sopt_td;
6840         if (sopt->sopt_dir == SOPT_SET) {
6841                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6842         } else if (sopt->sopt_dir == SOPT_GET) {
6843                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6844         } else {
6845                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6846                 error = EINVAL;
6847         }
6848         if ((error == 0) && (optval != NULL)) {
6849                 error = sooptcopyout(sopt, optval, optsize);
6850                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6851         } else if (optval != NULL) {
6852                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6853         }
6854 out:
6855         return (error);
6856 }
6857
6858 #ifdef INET
6859 static int
6860 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6861 {
6862         int error = 0;
6863         int create_lock_on = 0;
6864         uint32_t vrf_id;
6865         struct sctp_inpcb *inp;
6866         struct sctp_tcb *stcb = NULL;
6867
6868         inp = (struct sctp_inpcb *)so->so_pcb;
6869         if (inp == NULL) {
6870                 /* I made the same as TCP since we are not setup? */
6871                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6872                 return (ECONNRESET);
6873         }
6874         if (addr == NULL) {
6875                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6876                 return EINVAL;
6877         }
6878         switch (addr->sa_family) {
6879 #ifdef INET6
6880         case AF_INET6:
6881                 {
6882                         struct sockaddr_in6 *sin6p;
6883
6884                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6886                                 return (EINVAL);
6887                         }
6888                         sin6p = (struct sockaddr_in6 *)addr;
6889                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6890                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6891                                 return (error);
6892                         }
6893                         break;
6894                 }
6895 #endif
6896 #ifdef INET
6897         case AF_INET:
6898                 {
6899                         struct sockaddr_in *sinp;
6900
6901                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6903                                 return (EINVAL);
6904                         }
6905                         sinp = (struct sockaddr_in *)addr;
6906                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6908                                 return (error);
6909                         }
6910                         break;
6911                 }
6912 #endif
6913         default:
6914                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6915                 return (EAFNOSUPPORT);
6916         }
6917         SCTP_INP_INCR_REF(inp);
6918         SCTP_ASOC_CREATE_LOCK(inp);
6919         create_lock_on = 1;
6920
6921
6922         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6923             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6924                 /* Should I really unlock ? */
6925                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6926                 error = EFAULT;
6927                 goto out_now;
6928         }
6929 #ifdef INET6
6930         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6931             (addr->sa_family == AF_INET6)) {
6932                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6933                 error = EINVAL;
6934                 goto out_now;
6935         }
6936 #endif
6937         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6938             SCTP_PCB_FLAGS_UNBOUND) {
6939                 /* Bind a ephemeral port */
6940                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6941                 if (error) {
6942                         goto out_now;
6943                 }
6944         }
6945         /* Now do we connect? */
6946         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6947             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6948                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6949                 error = EINVAL;
6950                 goto out_now;
6951         }
6952         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6953             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6954                 /* We are already connected AND the TCP model */
6955                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6956                 error = EADDRINUSE;
6957                 goto out_now;
6958         }
6959         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6960                 SCTP_INP_RLOCK(inp);
6961                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6962                 SCTP_INP_RUNLOCK(inp);
6963         } else {
6964                 /*
6965                  * We increment here since sctp_findassociation_ep_addr()
6966                  * will do a decrement if it finds the stcb as long as the
6967                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6968                  */
6969                 SCTP_INP_INCR_REF(inp);
6970                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6971                 if (stcb == NULL) {
6972                         SCTP_INP_DECR_REF(inp);
6973                 } else {
6974                         SCTP_TCB_UNLOCK(stcb);
6975                 }
6976         }
6977         if (stcb != NULL) {
6978                 /* Already have or am bring up an association */
6979                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6980                 error = EALREADY;
6981                 goto out_now;
6982         }
6983         vrf_id = inp->def_vrf_id;
6984         /* We are GOOD to go */
6985         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
6986             inp->sctp_ep.pre_open_stream_count,
6987             inp->sctp_ep.port, p);
6988         if (stcb == NULL) {
6989                 /* Gak! no memory */
6990                 goto out_now;
6991         }
6992         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6993                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6994                 /* Set the connected flag so we can queue data */
6995                 soisconnecting(so);
6996         }
6997         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6998         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6999
7000         /* initialize authentication parameters for the assoc */
7001         sctp_initialize_auth_params(inp, stcb);
7002
7003         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7004         SCTP_TCB_UNLOCK(stcb);
7005 out_now:
7006         if (create_lock_on) {
7007                 SCTP_ASOC_CREATE_UNLOCK(inp);
7008         }
7009         SCTP_INP_DECR_REF(inp);
7010         return (error);
7011 }
7012 #endif
7013
7014 int
7015 sctp_listen(struct socket *so, int backlog, struct thread *p)
7016 {
7017         /*
7018          * Note this module depends on the protocol processing being called
7019          * AFTER any socket level flags and backlog are applied to the
7020          * socket. The traditional way that the socket flags are applied is
7021          * AFTER protocol processing. We have made a change to the
7022          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7023          * place if the socket API for SCTP is to work properly.
7024          */
7025
7026         int error = 0;
7027         struct sctp_inpcb *inp;
7028
7029         inp = (struct sctp_inpcb *)so->so_pcb;
7030         if (inp == NULL) {
7031                 /* I made the same as TCP since we are not setup? */
7032                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7033                 return (ECONNRESET);
7034         }
7035         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7036                 /* See if we have a listener */
7037                 struct sctp_inpcb *tinp;
7038                 union sctp_sockstore store;
7039
7040                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7041                         /* not bound all */
7042                         struct sctp_laddr *laddr;
7043
7044                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7045                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7046                                 switch (store.sa.sa_family) {
7047 #ifdef INET
7048                                 case AF_INET:
7049                                         store.sin.sin_port = inp->sctp_lport;
7050                                         break;
7051 #endif
7052 #ifdef INET6
7053                                 case AF_INET6:
7054                                         store.sin6.sin6_port = inp->sctp_lport;
7055                                         break;
7056 #endif
7057                                 default:
7058                                         break;
7059                                 }
7060                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7061                                 if (tinp && (tinp != inp) &&
7062                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7063                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7064                                     (SCTP_IS_LISTENING(tinp))) {
7065                                         /*
7066                                          * we have a listener already and
7067                                          * its not this inp.
7068                                          */
7069                                         SCTP_INP_DECR_REF(tinp);
7070                                         return (EADDRINUSE);
7071                                 } else if (tinp) {
7072                                         SCTP_INP_DECR_REF(tinp);
7073                                 }
7074                         }
7075                 } else {
7076                         /* Setup a local addr bound all */
7077                         memset(&store, 0, sizeof(store));
7078 #ifdef INET6
7079                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7080                                 store.sa.sa_family = AF_INET6;
7081                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7082                         }
7083 #endif
7084 #ifdef INET
7085                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7086                                 store.sa.sa_family = AF_INET;
7087                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7088                         }
7089 #endif
7090                         switch (store.sa.sa_family) {
7091 #ifdef INET
7092                         case AF_INET:
7093                                 store.sin.sin_port = inp->sctp_lport;
7094                                 break;
7095 #endif
7096 #ifdef INET6
7097                         case AF_INET6:
7098                                 store.sin6.sin6_port = inp->sctp_lport;
7099                                 break;
7100 #endif
7101                         default:
7102                                 break;
7103                         }
7104                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7105                         if (tinp && (tinp != inp) &&
7106                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7107                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7108                             (SCTP_IS_LISTENING(tinp))) {
7109                                 /*
7110                                  * we have a listener already and its not
7111                                  * this inp.
7112                                  */
7113                                 SCTP_INP_DECR_REF(tinp);
7114                                 return (EADDRINUSE);
7115                         } else if (tinp) {
7116                                 SCTP_INP_DECR_REF(tinp);
7117                         }
7118                 }
7119         }
7120         SCTP_INP_RLOCK(inp);
7121 #ifdef SCTP_LOCK_LOGGING
7122         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7123                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7124         }
7125 #endif
7126         SOCK_LOCK(so);
7127         error = solisten_proto_check(so);
7128         SOCK_UNLOCK(so);
7129         if (error) {
7130                 SCTP_INP_RUNLOCK(inp);
7131                 return (error);
7132         }
7133         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7134             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7135                 /*
7136                  * The unlucky case - We are in the tcp pool with this guy.
7137                  * - Someone else is in the main inp slot. - We must move
7138                  * this guy (the listener) to the main slot - We must then
7139                  * move the guy that was listener to the TCP Pool.
7140                  */
7141                 if (sctp_swap_inpcb_for_listen(inp)) {
7142                         SCTP_INP_RUNLOCK(inp);
7143                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7144                         return (EADDRINUSE);
7145                 }
7146         }
7147         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7148             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7149                 /* We are already connected AND the TCP model */
7150                 SCTP_INP_RUNLOCK(inp);
7151                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7152                 return (EADDRINUSE);
7153         }
7154         SCTP_INP_RUNLOCK(inp);
7155         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7156                 /* We must do a bind. */
7157                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7158                         /* bind error, probably perm */
7159                         return (error);
7160                 }
7161         }
7162         SCTP_INP_WLOCK(inp);
7163         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7164                 SOCK_LOCK(so);
7165                 solisten_proto(so, backlog);
7166                 SOCK_UNLOCK(so);
7167         }
7168         if (backlog > 0) {
7169                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7170         } else {
7171                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7172         }
7173         SCTP_INP_WUNLOCK(inp);
7174         return (error);
7175 }
7176
7177 static int sctp_defered_wakeup_cnt = 0;
7178
7179 int
7180 sctp_accept(struct socket *so, struct sockaddr **addr)
7181 {
7182         struct sctp_tcb *stcb;
7183         struct sctp_inpcb *inp;
7184         union sctp_sockstore store;
7185 #ifdef INET6
7186         int error;
7187 #endif
7188         inp = (struct sctp_inpcb *)so->so_pcb;
7189
7190         if (inp == NULL) {
7191                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7192                 return (ECONNRESET);
7193         }
7194         SCTP_INP_RLOCK(inp);
7195         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7196                 SCTP_INP_RUNLOCK(inp);
7197                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7198                 return (EOPNOTSUPP);
7199         }
7200         if (so->so_state & SS_ISDISCONNECTED) {
7201                 SCTP_INP_RUNLOCK(inp);
7202                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7203                 return (ECONNABORTED);
7204         }
7205         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7206         if (stcb == NULL) {
7207                 SCTP_INP_RUNLOCK(inp);
7208                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7209                 return (ECONNRESET);
7210         }
7211         SCTP_TCB_LOCK(stcb);
7212         SCTP_INP_RUNLOCK(inp);
7213         store = stcb->asoc.primary_destination->ro._l_addr;
7214         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7215         SCTP_TCB_UNLOCK(stcb);
7216         switch (store.sa.sa_family) {
7217 #ifdef INET
7218         case AF_INET:
7219                 {
7220                         struct sockaddr_in *sin;
7221
7222                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7223                         if (sin == NULL)
7224                                 return (ENOMEM);
7225                         sin->sin_family = AF_INET;
7226                         sin->sin_len = sizeof(*sin);
7227                         sin->sin_port = store.sin.sin_port;
7228                         sin->sin_addr = store.sin.sin_addr;
7229                         *addr = (struct sockaddr *)sin;
7230                         break;
7231                 }
7232 #endif
7233 #ifdef INET6
7234         case AF_INET6:
7235                 {
7236                         struct sockaddr_in6 *sin6;
7237
7238                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7239                         if (sin6 == NULL)
7240                                 return (ENOMEM);
7241                         sin6->sin6_family = AF_INET6;
7242                         sin6->sin6_len = sizeof(*sin6);
7243                         sin6->sin6_port = store.sin6.sin6_port;
7244                         sin6->sin6_addr = store.sin6.sin6_addr;
7245                         if ((error = sa6_recoverscope(sin6)) != 0) {
7246                                 SCTP_FREE_SONAME(sin6);
7247                                 return (error);
7248                         }
7249                         *addr = (struct sockaddr *)sin6;
7250                         break;
7251                 }
7252 #endif
7253         default:
7254                 /* TSNH */
7255                 break;
7256         }
7257         /* Wake any delayed sleep action */
7258         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7259                 SCTP_INP_WLOCK(inp);
7260                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7261                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7262                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7263                         SCTP_INP_WUNLOCK(inp);
7264                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7265                         if (sowriteable(inp->sctp_socket)) {
7266                                 sowwakeup_locked(inp->sctp_socket);
7267                         } else {
7268                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7269                         }
7270                         SCTP_INP_WLOCK(inp);
7271                 }
7272                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7273                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7274                         SCTP_INP_WUNLOCK(inp);
7275                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7276                         if (soreadable(inp->sctp_socket)) {
7277                                 sctp_defered_wakeup_cnt++;
7278                                 sorwakeup_locked(inp->sctp_socket);
7279                         } else {
7280                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7281                         }
7282                         SCTP_INP_WLOCK(inp);
7283                 }
7284                 SCTP_INP_WUNLOCK(inp);
7285         }
7286         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7287                 SCTP_TCB_LOCK(stcb);
7288                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7289                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7290         }
7291         return (0);
7292 }
7293
7294 #ifdef INET
7295 int
7296 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7297 {
7298         struct sockaddr_in *sin;
7299         uint32_t vrf_id;
7300         struct sctp_inpcb *inp;
7301         struct sctp_ifa *sctp_ifa;
7302
7303         /*
7304          * Do the malloc first in case it blocks.
7305          */
7306         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7307         if (sin == NULL)
7308                 return (ENOMEM);
7309         sin->sin_family = AF_INET;
7310         sin->sin_len = sizeof(*sin);
7311         inp = (struct sctp_inpcb *)so->so_pcb;
7312         if (!inp) {
7313                 SCTP_FREE_SONAME(sin);
7314                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7315                 return (ECONNRESET);
7316         }
7317         SCTP_INP_RLOCK(inp);
7318         sin->sin_port = inp->sctp_lport;
7319         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7320                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7321                         struct sctp_tcb *stcb;
7322                         struct sockaddr_in *sin_a;
7323                         struct sctp_nets *net;
7324                         int fnd;
7325
7326                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7327                         if (stcb == NULL) {
7328                                 goto notConn;
7329                         }
7330                         fnd = 0;
7331                         sin_a = NULL;
7332                         SCTP_TCB_LOCK(stcb);
7333                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7334                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7335                                 if (sin_a == NULL)
7336                                         /* this will make coverity happy */
7337                                         continue;
7338
7339                                 if (sin_a->sin_family == AF_INET) {
7340                                         fnd = 1;
7341                                         break;
7342                                 }
7343                         }
7344                         if ((!fnd) || (sin_a == NULL)) {
7345                                 /* punt */
7346                                 SCTP_TCB_UNLOCK(stcb);
7347                                 goto notConn;
7348                         }
7349                         vrf_id = inp->def_vrf_id;
7350                         sctp_ifa = sctp_source_address_selection(inp,
7351                             stcb,
7352                             (sctp_route_t *)&net->ro,
7353                             net, 0, vrf_id);
7354                         if (sctp_ifa) {
7355                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7356                                 sctp_free_ifa(sctp_ifa);
7357                         }
7358                         SCTP_TCB_UNLOCK(stcb);
7359                 } else {
7360                         /* For the bound all case you get back 0 */
7361         notConn:
7362                         sin->sin_addr.s_addr = 0;
7363                 }
7364
7365         } else {
7366                 /* Take the first IPv4 address in the list */
7367                 struct sctp_laddr *laddr;
7368                 int fnd = 0;
7369
7370                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7371                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7372                                 struct sockaddr_in *sin_a;
7373
7374                                 sin_a = &laddr->ifa->address.sin;
7375                                 sin->sin_addr = sin_a->sin_addr;
7376                                 fnd = 1;
7377                                 break;
7378                         }
7379                 }
7380                 if (!fnd) {
7381                         SCTP_FREE_SONAME(sin);
7382                         SCTP_INP_RUNLOCK(inp);
7383                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7384                         return (ENOENT);
7385                 }
7386         }
7387         SCTP_INP_RUNLOCK(inp);
7388         (*addr) = (struct sockaddr *)sin;
7389         return (0);
7390 }
7391
7392 int
7393 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7394 {
7395         struct sockaddr_in *sin;
7396         int fnd;
7397         struct sockaddr_in *sin_a;
7398         struct sctp_inpcb *inp;
7399         struct sctp_tcb *stcb;
7400         struct sctp_nets *net;
7401
7402         /* Do the malloc first in case it blocks. */
7403         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7404         if (sin == NULL)
7405                 return (ENOMEM);
7406         sin->sin_family = AF_INET;
7407         sin->sin_len = sizeof(*sin);
7408
7409         inp = (struct sctp_inpcb *)so->so_pcb;
7410         if ((inp == NULL) ||
7411             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7412                 /* UDP type and listeners will drop out here */
7413                 SCTP_FREE_SONAME(sin);
7414                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7415                 return (ENOTCONN);
7416         }
7417         SCTP_INP_RLOCK(inp);
7418         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7419         if (stcb) {
7420                 SCTP_TCB_LOCK(stcb);
7421         }
7422         SCTP_INP_RUNLOCK(inp);
7423         if (stcb == NULL) {
7424                 SCTP_FREE_SONAME(sin);
7425                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7426                 return (ECONNRESET);
7427         }
7428         fnd = 0;
7429         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7430                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7431                 if (sin_a->sin_family == AF_INET) {
7432                         fnd = 1;
7433                         sin->sin_port = stcb->rport;
7434                         sin->sin_addr = sin_a->sin_addr;
7435                         break;
7436                 }
7437         }
7438         SCTP_TCB_UNLOCK(stcb);
7439         if (!fnd) {
7440                 /* No IPv4 address */
7441                 SCTP_FREE_SONAME(sin);
7442                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7443                 return (ENOENT);
7444         }
7445         (*addr) = (struct sockaddr *)sin;
7446         return (0);
7447 }
7448
7449 struct pr_usrreqs sctp_usrreqs = {
7450         .pru_abort = sctp_abort,
7451         .pru_accept = sctp_accept,
7452         .pru_attach = sctp_attach,
7453         .pru_bind = sctp_bind,
7454         .pru_connect = sctp_connect,
7455         .pru_control = in_control,
7456         .pru_close = sctp_close,
7457         .pru_detach = sctp_close,
7458         .pru_sopoll = sopoll_generic,
7459         .pru_flush = sctp_flush,
7460         .pru_disconnect = sctp_disconnect,
7461         .pru_listen = sctp_listen,
7462         .pru_peeraddr = sctp_peeraddr,
7463         .pru_send = sctp_sendm,
7464         .pru_shutdown = sctp_shutdown,
7465         .pru_sockaddr = sctp_ingetaddr,
7466         .pru_sosend = sctp_sosend,
7467         .pru_soreceive = sctp_soreceive
7468 };
7469 #endif