sctp_usrreq.c

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    1 /*-
    2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions are met:
    6  *
    7  * a) Redistributions of source code must retain the above copyright notice,
    8  *   this list of conditions and the following disclaimer.
    9  *
   10  * b) Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in
   12  *   the documentation and/or other materials provided with the distribution.
   13  *
   14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   15  *    contributors may be used to endorse or promote products derived
   16  *    from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   28  * THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/8.0/sys/netinet/sctp_usrreq.c 197258 2009-09-16 14:47:50Z tuexen $");
   35 #include <netinet/sctp_os.h>
   36 #include <sys/proc.h>
   37 #include <netinet/sctp_pcb.h>
   38 #include <netinet/sctp_header.h>
   39 #include <netinet/sctp_var.h>
   40 #if defined(INET6)
   41 #endif
   42 #include <netinet/sctp_sysctl.h>
   43 #include <netinet/sctp_output.h>
   44 #include <netinet/sctp_uio.h>
   45 #include <netinet/sctp_asconf.h>
   46 #include <netinet/sctputil.h>
   47 #include <netinet/sctp_indata.h>
   48 #include <netinet/sctp_timer.h>
   49 #include <netinet/sctp_auth.h>
   50 #include <netinet/sctp_bsd_addr.h>
   51 #include <netinet/sctp_cc_functions.h>
   52 #include <netinet/udp.h>
   53 
   54 
   55 
   56 
   57 void
   58 sctp_init(void)
   59 {
   60         u_long sb_max_adj;
   61 
   62         bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat));
   63 
   64         /* Initialize and modify the sysctled variables */
   65         sctp_init_sysctls();
   66         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
   67                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
   68         /*
   69          * Allow a user to take no more than 1/2 the number of clusters or
   70          * the SB_MAX whichever is smaller for the send window.
   71          */
   72         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
   73         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
   74             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
   75         /*
   76          * Now for the recv window, should we take the same amount? or
   77          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
   78          * now I will just copy.
   79          */
   80         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
   81 
   82         SCTP_BASE_VAR(first_time) = 0;
   83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
   84         sctp_pcb_init();
   85 #if defined(SCTP_PACKET_LOGGING)
   86         SCTP_BASE_VAR(packet_log_writers) = 0;
   87         SCTP_BASE_VAR(packet_log_end) = 0;
   88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
   89 #endif
   90 
   91 
   92 }
   93 
   94 void
   95 sctp_finish(void)
   96 {
   97         sctp_pcb_finish();
   98 }
   99 
  100 
  101 
  102 void
  103 sctp_pathmtu_adjustment(struct sctp_inpcb *inp,
  104     struct sctp_tcb *stcb,
  105     struct sctp_nets *net,
  106     uint16_t nxtsz)
  107 {
  108         struct sctp_tmit_chunk *chk;
  109         uint16_t overhead;
  110 
  111         /* Adjust that too */
  112         stcb->asoc.smallest_mtu = nxtsz;
  113         /* now off to subtract IP_DF flag if needed */
  114 #ifdef SCTP_PRINT_FOR_B_AND_M
  115         SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n",
  116             inp, stcb, net, nxtsz);
  117 #endif
  118         overhead = IP_HDR_SIZE;
  119         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
  120                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
  121         }
  122         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
  123                 if ((chk->send_size + overhead) > nxtsz) {
  124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  125                 }
  126         }
  127         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
  128                 if ((chk->send_size + overhead) > nxtsz) {
  129                         /*
  130                          * For this guy we also mark for immediate resend
  131                          * since we sent to big of chunk
  132                          */
  133                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  134                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
  135                                 sctp_flight_size_decrease(chk);
  136                                 sctp_total_flight_decrease(stcb, chk);
  137                         }
  138                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
  139                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
  140                         }
  141                         chk->sent = SCTP_DATAGRAM_RESEND;
  142                         chk->rec.data.doing_fast_retransmit = 0;
  143                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
  144                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
  145                                     chk->whoTo->flight_size,
  146                                     chk->book_size,
  147                                     (uintptr_t) chk->whoTo,
  148                                     chk->rec.data.TSN_seq);
  149                         }
  150                         /* Clear any time so NO RTT is being done */
  151                         chk->do_rtt = 0;
  152                 }
  153         }
  154 }
  155 
  156 static void
  157 sctp_notify_mbuf(struct sctp_inpcb *inp,
  158     struct sctp_tcb *stcb,
  159     struct sctp_nets *net,
  160     struct ip *ip,
  161     struct sctphdr *sh)
  162 {
  163         struct icmp *icmph;
  164         int totsz, tmr_stopped = 0;
  165         uint16_t nxtsz;
  166 
  167         /* protection */
  168         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  169             (ip == NULL) || (sh == NULL)) {
  170                 if (stcb != NULL) {
  171                         SCTP_TCB_UNLOCK(stcb);
  172                 }
  173                 return;
  174         }
  175         /* First job is to verify the vtag matches what I would send */
  176         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  177                 SCTP_TCB_UNLOCK(stcb);
  178                 return;
  179         }
  180         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  181             sizeof(struct ip)));
  182         if (icmph->icmp_type != ICMP_UNREACH) {
  183                 /* We only care about unreachable */
  184                 SCTP_TCB_UNLOCK(stcb);
  185                 return;
  186         }
  187         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
  188                 /* not a unreachable message due to frag. */
  189                 SCTP_TCB_UNLOCK(stcb);
  190                 return;
  191         }
  192         totsz = ip->ip_len;
  193 
  194         nxtsz = ntohs(icmph->icmp_nextmtu);
  195         if (nxtsz == 0) {
  196                 /*
  197                  * old type router that does not tell us what the next size
  198                  * mtu is. Rats we will have to guess (in a educated fashion
  199                  * of course)
  200                  */
  201                 nxtsz = find_next_best_mtu(totsz);
  202         }
  203         /* Stop any PMTU timer */
  204         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  205                 tmr_stopped = 1;
  206                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  207                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  208         }
  209         /* Adjust destination size limit */
  210         if (net->mtu > nxtsz) {
  211                 net->mtu = nxtsz;
  212                 if (net->port) {
  213                         net->mtu -= sizeof(struct udphdr);
  214                 }
  215         }
  216         /* now what about the ep? */
  217         if (stcb->asoc.smallest_mtu > nxtsz) {
  218 #ifdef SCTP_PRINT_FOR_B_AND_M
  219                 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n",
  220                     nxtsz);
  221 #endif
  222                 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz);
  223         }
  224         if (tmr_stopped)
  225                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  226 
  227         SCTP_TCB_UNLOCK(stcb);
  228 }
  229 
  230 
  231 void
  232 sctp_notify(struct sctp_inpcb *inp,
  233     struct ip *ip,
  234     struct sctphdr *sh,
  235     struct sockaddr *to,
  236     struct sctp_tcb *stcb,
  237     struct sctp_nets *net)
  238 {
  239 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  240         struct socket *so;
  241 
  242 #endif
  243         /* protection */
  244         int reason;
  245         struct icmp *icmph;
  246 
  247 
  248         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  249             (sh == NULL) || (to == NULL)) {
  250                 if (stcb)
  251                         SCTP_TCB_UNLOCK(stcb);
  252                 return;
  253         }
  254         /* First job is to verify the vtag matches what I would send */
  255         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  256                 SCTP_TCB_UNLOCK(stcb);
  257                 return;
  258         }
  259         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  260             sizeof(struct ip)));
  261         if (icmph->icmp_type != ICMP_UNREACH) {
  262                 /* We only care about unreachable */
  263                 SCTP_TCB_UNLOCK(stcb);
  264                 return;
  265         }
  266         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
  267             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
  268             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  269             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  270             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
  271             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  272             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  273             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  274 
  275                 /*
  276                  * Hmm reachablity problems we must examine closely. If its
  277                  * not reachable, we may have lost a network. Or if there is
  278                  * NO protocol at the other end named SCTP. well we consider
  279                  * it a OOTB abort.
  280                  */
  281                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  282                         /* Ok that destination is NOT reachable */
  283                         SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n",
  284                             net->error_count,
  285                             net->failure_threshold,
  286                             net);
  287 
  288                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  289                         net->dest_state |= SCTP_ADDR_NOT_REACHABLE;
  290                         /*
  291                          * JRS 5/14/07 - If a destination is unreachable,
  292                          * the PF bit is turned off.  This allows an
  293                          * unambiguous use of the PF bit for destinations
  294                          * that are reachable but potentially failed. If the
  295                          * destination is set to the unreachable state, also
  296                          * set the destination to the PF state.
  297                          */
  298                         /*
  299                          * Add debug message here if destination is not in
  300                          * PF state.
  301                          */
  302                         /* Stop any running T3 timers here? */
  303                         if (SCTP_BASE_SYSCTL(sctp_cmt_on_off) && SCTP_BASE_SYSCTL(sctp_cmt_pf)) {
  304                                 net->dest_state &= ~SCTP_ADDR_PF;
  305                                 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n",
  306                                     net);
  307                         }
  308                         net->error_count = net->failure_threshold + 1;
  309                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  310                             stcb, SCTP_FAILED_THRESHOLD,
  311                             (void *)net, SCTP_SO_NOT_LOCKED);
  312                 }
  313                 SCTP_TCB_UNLOCK(stcb);
  314         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
  315             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
  316                 /*
  317                  * Here the peer is either playing tricks on us, including
  318                  * an address that belongs to someone who does not support
  319                  * SCTP OR was a userland implementation that shutdown and
  320                  * now is dead. In either case treat it like a OOTB abort
  321                  * with no TCB
  322                  */
  323                 reason = SCTP_PEER_FAULTY;
  324                 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
  325 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  326                 so = SCTP_INP_SO(inp);
  327                 atomic_add_int(&stcb->asoc.refcnt, 1);
  328                 SCTP_TCB_UNLOCK(stcb);
  329                 SCTP_SOCKET_LOCK(so, 1);
  330                 SCTP_TCB_LOCK(stcb);
  331                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  332 #endif
  333                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  334 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  335                 SCTP_SOCKET_UNLOCK(so, 1);
  336                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  337 #endif
  338                 /* no need to unlock here, since the TCB is gone */
  339         } else {
  340                 SCTP_TCB_UNLOCK(stcb);
  341         }
  342 }
  343 
  344 void
  345 sctp_ctlinput(cmd, sa, vip)
  346         int cmd;
  347         struct sockaddr *sa;
  348         void *vip;
  349 {
  350         struct ip *ip = vip;
  351         struct sctphdr *sh;
  352         uint32_t vrf_id;
  353 
  354         /* FIX, for non-bsd is this right? */
  355         vrf_id = SCTP_DEFAULT_VRFID;
  356         if (sa->sa_family != AF_INET ||
  357             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  358                 return;
  359         }
  360         if (PRC_IS_REDIRECT(cmd)) {
  361                 ip = 0;
  362         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  363                 return;
  364         }
  365         if (ip) {
  366                 struct sctp_inpcb *inp = NULL;
  367                 struct sctp_tcb *stcb = NULL;
  368                 struct sctp_nets *net = NULL;
  369                 struct sockaddr_in to, from;
  370 
  371                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
  372                 bzero(&to, sizeof(to));
  373                 bzero(&from, sizeof(from));
  374                 from.sin_family = to.sin_family = AF_INET;
  375                 from.sin_len = to.sin_len = sizeof(to);
  376                 from.sin_port = sh->src_port;
  377                 from.sin_addr = ip->ip_src;
  378                 to.sin_port = sh->dest_port;
  379                 to.sin_addr = ip->ip_dst;
  380 
  381                 /*
  382                  * 'to' holds the dest of the packet that failed to be sent.
  383                  * 'from' holds our local endpoint address. Thus we reverse
  384                  * the to and the from in the lookup.
  385                  */
  386                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
  387                     (struct sockaddr *)&to,
  388                     &inp, &net, 1, vrf_id);
  389                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
  390                         if (cmd != PRC_MSGSIZE) {
  391                                 sctp_notify(inp, ip, sh,
  392                                     (struct sockaddr *)&to, stcb,
  393                                     net);
  394                         } else {
  395                                 /* handle possible ICMP size messages */
  396                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
  397                         }
  398                 } else {
  399                         if ((stcb == NULL) && (inp != NULL)) {
  400                                 /* reduce ref-count */
  401                                 SCTP_INP_WLOCK(inp);
  402                                 SCTP_INP_DECR_REF(inp);
  403                                 SCTP_INP_WUNLOCK(inp);
  404                         }
  405                 }
  406         }
  407         return;
  408 }
  409 
  410 static int
  411 sctp_getcred(SYSCTL_HANDLER_ARGS)
  412 {
  413         struct xucred xuc;
  414         struct sockaddr_in addrs[2];
  415         struct sctp_inpcb *inp;
  416         struct sctp_nets *net;
  417         struct sctp_tcb *stcb;
  418         int error;
  419         uint32_t vrf_id;
  420 
  421         /* FIX, for non-bsd is this right? */
  422         vrf_id = SCTP_DEFAULT_VRFID;
  423 
  424         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  425 
  426         if (error)
  427                 return (error);
  428 
  429         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  430         if (error)
  431                 return (error);
  432 
  433         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
  434             sintosa(&addrs[1]),
  435             &inp, &net, 1, vrf_id);
  436         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  437                 if ((inp != NULL) && (stcb == NULL)) {
  438                         /* reduce ref-count */
  439                         SCTP_INP_WLOCK(inp);
  440                         SCTP_INP_DECR_REF(inp);
  441                         goto cred_can_cont;
  442                 }
  443                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  444                 error = ENOENT;
  445                 goto out;
  446         }
  447         SCTP_TCB_UNLOCK(stcb);
  448         /*
  449          * We use the write lock here, only since in the error leg we need
  450          * it. If we used RLOCK, then we would have to
  451          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  452          * Better to use higher wlock.
  453          */
  454         SCTP_INP_WLOCK(inp);
  455 cred_can_cont:
  456         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  457         if (error) {
  458                 SCTP_INP_WUNLOCK(inp);
  459                 goto out;
  460         }
  461         cru2x(inp->sctp_socket->so_cred, &xuc);
  462         SCTP_INP_WUNLOCK(inp);
  463         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  464 out:
  465         return (error);
  466 }
  467 
  468 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  469     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  470 
  471 
  472 static void
  473 sctp_abort(struct socket *so)
  474 {
  475         struct sctp_inpcb *inp;
  476         uint32_t flags;
  477 
  478         inp = (struct sctp_inpcb *)so->so_pcb;
  479         if (inp == 0) {
  480                 return;
  481         }
  482 sctp_must_try_again:
  483         flags = inp->sctp_flags;
  484 #ifdef SCTP_LOG_CLOSING
  485         sctp_log_closing(inp, NULL, 17);
  486 #endif
  487         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  488             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  489 #ifdef SCTP_LOG_CLOSING
  490                 sctp_log_closing(inp, NULL, 16);
  491 #endif
  492                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  493                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  494                 SOCK_LOCK(so);
  495                 SCTP_SB_CLEAR(so->so_snd);
  496                 /*
  497                  * same for the rcv ones, they are only here for the
  498                  * accounting/select.
  499                  */
  500                 SCTP_SB_CLEAR(so->so_rcv);
  501 
  502                 /* Now null out the reference, we are completely detached. */
  503                 so->so_pcb = NULL;
  504                 SOCK_UNLOCK(so);
  505         } else {
  506                 flags = inp->sctp_flags;
  507                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  508                         goto sctp_must_try_again;
  509                 }
  510         }
  511         return;
  512 }
  513 
  514 static int
  515 sctp_attach(struct socket *so, int proto, struct thread *p)
  516 {
  517         struct sctp_inpcb *inp;
  518         struct inpcb *ip_inp;
  519         int error;
  520         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  521 
  522 #ifdef IPSEC
  523         uint32_t flags;
  524 
  525 #endif
  526 
  527         inp = (struct sctp_inpcb *)so->so_pcb;
  528         if (inp != 0) {
  529                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  530                 return EINVAL;
  531         }
  532         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  533                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  534                 if (error) {
  535                         return error;
  536                 }
  537         }
  538         error = sctp_inpcb_alloc(so, vrf_id);
  539         if (error) {
  540                 return error;
  541         }
  542         inp = (struct sctp_inpcb *)so->so_pcb;
  543         SCTP_INP_WLOCK(inp);
  544         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  545         ip_inp = &inp->ip_inp.inp;
  546         ip_inp->inp_vflag |= INP_IPV4;
  547         ip_inp->inp_ip_ttl = MODULE_GLOBAL(MOD_INET, ip_defttl);
  548 #ifdef IPSEC
  549         error = ipsec_init_policy(so, &ip_inp->inp_sp);
  550 #ifdef SCTP_LOG_CLOSING
  551         sctp_log_closing(inp, NULL, 17);
  552 #endif
  553         if (error != 0) {
  554                 flags = inp->sctp_flags;
  555                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  556                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  557 #ifdef SCTP_LOG_CLOSING
  558                         sctp_log_closing(inp, NULL, 15);
  559 #endif
  560                         SCTP_INP_WUNLOCK(inp);
  561                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  562                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  563                 } else {
  564                         SCTP_INP_WUNLOCK(inp);
  565                 }
  566                 return error;
  567         }
  568 #endif                          /* IPSEC */
  569         SCTP_INP_WUNLOCK(inp);
  570         return 0;
  571 }
  572 
  573 static int
  574 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  575 {
  576         struct sctp_inpcb *inp = NULL;
  577         int error;
  578 
  579 #ifdef INET6
  580         if (addr && addr->sa_family != AF_INET) {
  581                 /* must be a v4 address! */
  582                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  583                 return EINVAL;
  584         }
  585 #endif                          /* INET6 */
  586         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
  587                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  588                 return EINVAL;
  589         }
  590         inp = (struct sctp_inpcb *)so->so_pcb;
  591         if (inp == 0) {
  592                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  593                 return EINVAL;
  594         }
  595         error = sctp_inpcb_bind(so, addr, NULL, p);
  596         return error;
  597 }
  598 
  599 void
  600 sctp_close(struct socket *so)
  601 {
  602         struct sctp_inpcb *inp;
  603         uint32_t flags;
  604 
  605         inp = (struct sctp_inpcb *)so->so_pcb;
  606         if (inp == 0)
  607                 return;
  608 
  609         /*
  610          * Inform all the lower layer assoc that we are done.
  611          */
  612 sctp_must_try_again:
  613         flags = inp->sctp_flags;
  614 #ifdef SCTP_LOG_CLOSING
  615         sctp_log_closing(inp, NULL, 17);
  616 #endif
  617         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  618             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  619                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  620                     (so->so_rcv.sb_cc > 0)) {
  621 #ifdef SCTP_LOG_CLOSING
  622                         sctp_log_closing(inp, NULL, 13);
  623 #endif
  624                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  625                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  626                 } else {
  627 #ifdef SCTP_LOG_CLOSING
  628                         sctp_log_closing(inp, NULL, 14);
  629 #endif
  630                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  631                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  632                 }
  633                 /*
  634                  * The socket is now detached, no matter what the state of
  635                  * the SCTP association.
  636                  */
  637                 SOCK_LOCK(so);
  638                 SCTP_SB_CLEAR(so->so_snd);
  639                 /*
  640                  * same for the rcv ones, they are only here for the
  641                  * accounting/select.
  642                  */
  643                 SCTP_SB_CLEAR(so->so_rcv);
  644 
  645                 /* Now null out the reference, we are completely detached. */
  646                 so->so_pcb = NULL;
  647                 SOCK_UNLOCK(so);
  648         } else {
  649                 flags = inp->sctp_flags;
  650                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  651                         goto sctp_must_try_again;
  652                 }
  653         }
  654         return;
  655 }
  656 
  657 
  658 int
  659 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  660     struct mbuf *control, struct thread *p);
  661 
  662 
  663 int
  664 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  665     struct mbuf *control, struct thread *p)
  666 {
  667         struct sctp_inpcb *inp;
  668         int error;
  669 
  670         inp = (struct sctp_inpcb *)so->so_pcb;
  671         if (inp == 0) {
  672                 if (control) {
  673                         sctp_m_freem(control);
  674                         control = NULL;
  675                 }
  676                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  677                 sctp_m_freem(m);
  678                 return EINVAL;
  679         }
  680         /* Got to have an to address if we are NOT a connected socket */
  681         if ((addr == NULL) &&
  682             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  683             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))
  684             ) {
  685                 goto connected_type;
  686         } else if (addr == NULL) {
  687                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  688                 error = EDESTADDRREQ;
  689                 sctp_m_freem(m);
  690                 if (control) {
  691                         sctp_m_freem(control);
  692                         control = NULL;
  693                 }
  694                 return (error);
  695         }
  696 #ifdef INET6
  697         if (addr->sa_family != AF_INET) {
  698                 /* must be a v4 address! */
  699                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  700                 sctp_m_freem(m);
  701                 if (control) {
  702                         sctp_m_freem(control);
  703                         control = NULL;
  704                 }
  705                 error = EDESTADDRREQ;
  706                 return EDESTADDRREQ;
  707         }
  708 #endif                          /* INET6 */
  709 connected_type:
  710         /* now what about control */
  711         if (control) {
  712                 if (inp->control) {
  713                         SCTP_PRINTF("huh? control set?\n");
  714                         sctp_m_freem(inp->control);
  715                         inp->control = NULL;
  716                 }
  717                 inp->control = control;
  718         }
  719         /* Place the data */
  720         if (inp->pkt) {
  721                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  722                 inp->pkt_last = m;
  723         } else {
  724                 inp->pkt_last = inp->pkt = m;
  725         }
  726         if (
  727         /* FreeBSD uses a flag passed */
  728             ((flags & PRUS_MORETOCOME) == 0)
  729             ) {
  730                 /*
  731                  * note with the current version this code will only be used
  732                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  733                  * re-defining sosend to use the sctp_sosend. One can
  734                  * optionally switch back to this code (by changing back the
  735                  * definitions) but this is not advisable. This code is used
  736                  * by FreeBSD when sending a file with sendfile() though.
  737                  */
  738                 int ret;
  739 
  740                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  741                 inp->pkt = NULL;
  742                 inp->control = NULL;
  743                 return (ret);
  744         } else {
  745                 return (0);
  746         }
  747 }
  748 
  749 int
  750 sctp_disconnect(struct socket *so)
  751 {
  752         struct sctp_inpcb *inp;
  753 
  754         inp = (struct sctp_inpcb *)so->so_pcb;
  755         if (inp == NULL) {
  756                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  757                 return (ENOTCONN);
  758         }
  759         SCTP_INP_RLOCK(inp);
  760         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  761             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  762                 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) {
  763                         /* No connection */
  764                         SCTP_INP_RUNLOCK(inp);
  765                         return (0);
  766                 } else {
  767                         struct sctp_association *asoc;
  768                         struct sctp_tcb *stcb;
  769 
  770                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  771                         if (stcb == NULL) {
  772                                 SCTP_INP_RUNLOCK(inp);
  773                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  774                                 return (EINVAL);
  775                         }
  776                         SCTP_TCB_LOCK(stcb);
  777                         asoc = &stcb->asoc;
  778                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  779                                 /* We are about to be freed, out of here */
  780                                 SCTP_TCB_UNLOCK(stcb);
  781                                 SCTP_INP_RUNLOCK(inp);
  782                                 return (0);
  783                         }
  784                         if (((so->so_options & SO_LINGER) &&
  785                             (so->so_linger == 0)) ||
  786                             (so->so_rcv.sb_cc > 0)) {
  787                                 if (SCTP_GET_STATE(asoc) !=
  788                                     SCTP_STATE_COOKIE_WAIT) {
  789                                         /* Left with Data unread */
  790                                         struct mbuf *err;
  791 
  792                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
  793                                         if (err) {
  794                                                 /*
  795                                                  * Fill in the user
  796                                                  * initiated abort
  797                                                  */
  798                                                 struct sctp_paramhdr *ph;
  799 
  800                                                 ph = mtod(err, struct sctp_paramhdr *);
  801                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
  802                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  803                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
  804                                         }
  805 #if defined(SCTP_PANIC_ON_ABORT)
  806                                         panic("disconnect does an abort");
  807 #endif
  808                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
  809                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  810                                 }
  811                                 SCTP_INP_RUNLOCK(inp);
  812                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  813                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  814                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  815                                 }
  816                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  817                                 /* No unlock tcb assoc is gone */
  818                                 return (0);
  819                         }
  820                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  821                             TAILQ_EMPTY(&asoc->sent_queue) &&
  822                             (asoc->stream_queue_cnt == 0)) {
  823                                 /* there is nothing queued to send, so done */
  824                                 if (asoc->locked_on_sending) {
  825                                         goto abort_anyway;
  826                                 }
  827                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
  828                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  829                                         /* only send SHUTDOWN 1st time thru */
  830                                         sctp_stop_timers_for_shutdown(stcb);
  831                                         sctp_send_shutdown(stcb,
  832                                             stcb->asoc.primary_destination);
  833                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  834                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
  835                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  836                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  837                                         }
  838                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  839                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  840                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  841                                             stcb->sctp_ep, stcb,
  842                                             asoc->primary_destination);
  843                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  844                                             stcb->sctp_ep, stcb,
  845                                             asoc->primary_destination);
  846                                 }
  847                         } else {
  848                                 /*
  849                                  * we still got (or just got) data to send,
  850                                  * so set SHUTDOWN_PENDING
  851                                  */
  852                                 /*
  853                                  * XXX sockets draft says that SCTP_EOF
  854                                  * should be sent with no data. currently,
  855                                  * we will allow user data to be sent first
  856                                  * and move to SHUTDOWN-PENDING
  857                                  */
  858                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
  859                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  860                                     asoc->primary_destination);
  861                                 if (asoc->locked_on_sending) {
  862                                         /* Locked to send out the data */
  863                                         struct sctp_stream_queue_pending *sp;
  864 
  865                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
  866                                         if (sp == NULL) {
  867                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
  868                                                     asoc->locked_on_sending->stream_no);
  869                                         } else {
  870                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
  871                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
  872                                         }
  873                                 }
  874                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  875                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  876                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  877                                         struct mbuf *op_err;
  878 
  879                         abort_anyway:
  880                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
  881                                             0, M_DONTWAIT, 1, MT_DATA);
  882                                         if (op_err) {
  883                                                 /*
  884                                                  * Fill in the user
  885                                                  * initiated abort
  886                                                  */
  887                                                 struct sctp_paramhdr *ph;
  888                                                 uint32_t *ippp;
  889 
  890                                                 SCTP_BUF_LEN(op_err) =
  891                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
  892                                                 ph = mtod(op_err,
  893                                                     struct sctp_paramhdr *);
  894                                                 ph->param_type = htons(
  895                                                     SCTP_CAUSE_USER_INITIATED_ABT);
  896                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
  897                                                 ippp = (uint32_t *) (ph + 1);
  898                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
  899                                         }
  900 #if defined(SCTP_PANIC_ON_ABORT)
  901                                         panic("disconnect does an abort");
  902 #endif
  903 
  904                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  905                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  906                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  907                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  908                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  909                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  910                                         }
  911                                         SCTP_INP_RUNLOCK(inp);
  912                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  913                                         return (0);
  914                                 } else {
  915                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  916                                 }
  917                         }
  918                         soisdisconnecting(so);
  919                         SCTP_TCB_UNLOCK(stcb);
  920                         SCTP_INP_RUNLOCK(inp);
  921                         return (0);
  922                 }
  923                 /* not reached */
  924         } else {
  925                 /* UDP model does not support this */
  926                 SCTP_INP_RUNLOCK(inp);
  927                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  928                 return EOPNOTSUPP;
  929         }
  930 }
  931 
  932 int
  933 sctp_flush(struct socket *so, int how)
  934 {
  935         /*
  936          * We will just clear out the values and let subsequent close clear
  937          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  938          * they will not be able to read the data, the socket will block
  939          * that from happening.
  940          */
  941         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  942                 /*
  943                  * First make sure the sb will be happy, we don't use these
  944                  * except maybe the count
  945                  */
  946                 so->so_rcv.sb_cc = 0;
  947                 so->so_rcv.sb_mbcnt = 0;
  948                 so->so_rcv.sb_mb = NULL;
  949         }
  950         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  951                 /*
  952                  * First make sure the sb will be happy, we don't use these
  953                  * except maybe the count
  954                  */
  955                 so->so_snd.sb_cc = 0;
  956                 so->so_snd.sb_mbcnt = 0;
  957                 so->so_snd.sb_mb = NULL;
  958 
  959         }
  960         return (0);
  961 }
  962 
  963 int
  964 sctp_shutdown(struct socket *so)
  965 {
  966         struct sctp_inpcb *inp;
  967 
  968         inp = (struct sctp_inpcb *)so->so_pcb;
  969         if (inp == 0) {
  970                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  971                 return EINVAL;
  972         }
  973         SCTP_INP_RLOCK(inp);
  974         /* For UDP model this is a invalid call */
  975         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  976                 /* Restore the flags that the soshutdown took away. */
  977                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  978                 /* This proc will wakeup for read and do nothing (I hope) */
  979                 SCTP_INP_RUNLOCK(inp);
  980                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  981                 return (EOPNOTSUPP);
  982         }
  983         /*
  984          * Ok if we reach here its the TCP model and it is either a SHUT_WR
  985          * or SHUT_RDWR. This means we put the shutdown flag against it.
  986          */
  987         {
  988                 struct sctp_tcb *stcb;
  989                 struct sctp_association *asoc;
  990 
  991                 if ((so->so_state &
  992                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  993                         SCTP_INP_RUNLOCK(inp);
  994                         return (ENOTCONN);
  995                 }
  996                 socantsendmore(so);
  997 
  998                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  999                 if (stcb == NULL) {
 1000                         /*
 1001                          * Ok we hit the case that the shutdown call was
 1002                          * made after an abort or something. Nothing to do
 1003                          * now.
 1004                          */
 1005                         SCTP_INP_RUNLOCK(inp);
 1006                         return (0);
 1007                 }
 1008                 SCTP_TCB_LOCK(stcb);
 1009                 asoc = &stcb->asoc;
 1010                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 1011                     TAILQ_EMPTY(&asoc->sent_queue) &&
 1012                     (asoc->stream_queue_cnt == 0)) {
 1013                         if (asoc->locked_on_sending) {
 1014                                 goto abort_anyway;
 1015                         }
 1016                         /* there is nothing queued to send, so I'm done... */
 1017                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 1018                                 /* only send SHUTDOWN the first time through */
 1019                                 sctp_stop_timers_for_shutdown(stcb);
 1020                                 sctp_send_shutdown(stcb,
 1021                                     stcb->asoc.primary_destination);
 1022                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 1023                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 1024                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 1025                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 1026                                 }
 1027                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 1028                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 1029                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 1030                                     stcb->sctp_ep, stcb,
 1031                                     asoc->primary_destination);
 1032                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 1033                                     stcb->sctp_ep, stcb,
 1034                                     asoc->primary_destination);
 1035                         }
 1036                 } else {
 1037                         /*
 1038                          * we still got (or just got) data to send, so set
 1039                          * SHUTDOWN_PENDING
 1040                          */
 1041                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 1042                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 1043                             asoc->primary_destination);
 1044 
 1045                         if (asoc->locked_on_sending) {
 1046                                 /* Locked to send out the data */
 1047                                 struct sctp_stream_queue_pending *sp;
 1048 
 1049                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 1050                                 if (sp == NULL) {
 1051                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 1052                                             asoc->locked_on_sending->stream_no);
 1053                                 } else {
 1054                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 1055                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 1056                                         }
 1057                                 }
 1058                         }
 1059                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 1060                             TAILQ_EMPTY(&asoc->sent_queue) &&
 1061                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 1062                                 struct mbuf *op_err;
 1063 
 1064                 abort_anyway:
 1065                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 1066                                     0, M_DONTWAIT, 1, MT_DATA);
 1067                                 if (op_err) {
 1068                                         /* Fill in the user initiated abort */
 1069                                         struct sctp_paramhdr *ph;
 1070                                         uint32_t *ippp;
 1071 
 1072                                         SCTP_BUF_LEN(op_err) =
 1073                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
 1074                                         ph = mtod(op_err,
 1075                                             struct sctp_paramhdr *);
 1076                                         ph->param_type = htons(
 1077                                             SCTP_CAUSE_USER_INITIATED_ABT);
 1078                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
 1079                                         ippp = (uint32_t *) (ph + 1);
 1080                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
 1081                                 }
 1082 #if defined(SCTP_PANIC_ON_ABORT)
 1083                                 panic("shutdown does an abort");
 1084 #endif
 1085                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 1086                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 1087                                     SCTP_RESPONSE_TO_USER_REQ,
 1088                                     op_err, SCTP_SO_LOCKED);
 1089                                 goto skip_unlock;
 1090                         } else {
 1091                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 1092                         }
 1093                 }
 1094                 SCTP_TCB_UNLOCK(stcb);
 1095         }
 1096 skip_unlock:
 1097         SCTP_INP_RUNLOCK(inp);
 1098         return 0;
 1099 }
 1100 
 1101 /*
 1102  * copies a "user" presentable address and removes embedded scope, etc.
 1103  * returns 0 on success, 1 on error
 1104  */
 1105 static uint32_t
 1106 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 1107 {
 1108 #ifdef INET6
 1109         struct sockaddr_in6 lsa6;
 1110 
 1111         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 1112             &lsa6);
 1113 #endif
 1114         memcpy(ss, sa, sa->sa_len);
 1115         return (0);
 1116 }
 1117 
 1118 
 1119 
 1120 /*
 1121  * NOTE: assumes addr lock is held
 1122  */
 1123 static size_t
 1124 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1125     struct sctp_tcb *stcb,
 1126     size_t limit,
 1127     struct sockaddr_storage *sas,
 1128     uint32_t vrf_id)
 1129 {
 1130         struct sctp_ifn *sctp_ifn;
 1131         struct sctp_ifa *sctp_ifa;
 1132         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
 1133         size_t actual;
 1134         int ipv4_addr_legal, ipv6_addr_legal;
 1135         struct sctp_vrf *vrf;
 1136 
 1137         actual = 0;
 1138         if (limit <= 0)
 1139                 return (actual);
 1140 
 1141         if (stcb) {
 1142                 /* Turn on all the appropriate scope */
 1143                 loopback_scope = stcb->asoc.loopback_scope;
 1144                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
 1145                 local_scope = stcb->asoc.local_scope;
 1146                 site_scope = stcb->asoc.site_scope;
 1147         } else {
 1148                 /* Turn on ALL scope, since we look at the EP */
 1149                 loopback_scope = ipv4_local_scope = local_scope =
 1150                     site_scope = 1;
 1151         }
 1152         ipv4_addr_legal = ipv6_addr_legal = 0;
 1153         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1154                 ipv6_addr_legal = 1;
 1155                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
 1156                         ipv4_addr_legal = 1;
 1157                 }
 1158         } else {
 1159                 ipv4_addr_legal = 1;
 1160         }
 1161         vrf = sctp_find_vrf(vrf_id);
 1162         if (vrf == NULL) {
 1163                 return (0);
 1164         }
 1165         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1166                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1167                         if ((loopback_scope == 0) &&
 1168                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1169                                 /* Skip loopback if loopback_scope not set */
 1170                                 continue;
 1171                         }
 1172                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1173                                 if (stcb) {
 1174                                         /*
 1175                                          * For the BOUND-ALL case, the list
 1176                                          * associated with a TCB is Always
 1177                                          * considered a reverse list.. i.e.
 1178                                          * it lists addresses that are NOT
 1179                                          * part of the association. If this
 1180                                          * is one of those we must skip it.
 1181                                          */
 1182                                         if (sctp_is_addr_restricted(stcb,
 1183                                             sctp_ifa)) {
 1184                                                 continue;
 1185                                         }
 1186                                 }
 1187                                 switch (sctp_ifa->address.sa.sa_family) {
 1188                                 case AF_INET:
 1189                                         if (ipv4_addr_legal) {
 1190                                                 struct sockaddr_in *sin;
 1191 
 1192                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
 1193                                                 if (sin->sin_addr.s_addr == 0) {
 1194                                                         /*
 1195                                                          * we skip
 1196                                                          * unspecifed
 1197                                                          * addresses
 1198                                                          */
 1199                                                         continue;
 1200                                                 }
 1201                                                 if ((ipv4_local_scope == 0) &&
 1202                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1203                                                         continue;
 1204                                                 }
 1205 #ifdef INET6
 1206                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1207                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1208                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1209                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1210                                                         actual += sizeof(struct sockaddr_in6);
 1211                                                 } else {
 1212 #endif
 1213                                                         memcpy(sas, sin, sizeof(*sin));
 1214                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1215                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 1216                                                         actual += sizeof(*sin);
 1217 #ifdef INET6
 1218                                                 }
 1219 #endif
 1220                                                 if (actual >= limit) {
 1221                                                         return (actual);
 1222                                                 }
 1223                                         } else {
 1224                                                 continue;
 1225                                         }
 1226                                         break;
 1227 #ifdef INET6
 1228                                 case AF_INET6:
 1229                                         if (ipv6_addr_legal) {
 1230                                                 struct sockaddr_in6 *sin6;
 1231 
 1232                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
 1233                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1234                                                         /*
 1235                                                          * we skip
 1236                                                          * unspecifed
 1237                                                          * addresses
 1238                                                          */
 1239                                                         continue;
 1240                                                 }
 1241                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1242                                                         if (local_scope == 0)
 1243                                                                 continue;
 1244                                                         if (sin6->sin6_scope_id == 0) {
 1245                                                                 if (sa6_recoverscope(sin6) != 0)
 1246                                                                         /*
 1247                                                                          * 
 1248                                                                          * bad
 1249                                                                          * 
 1250                                                                          * li
 1251                                                                          * nk
 1252                                                                          * 
 1253                                                                          * loc
 1254                                                                          * al
 1255                                                                          * 
 1256                                                                          * add
 1257                                                                          * re
 1258                                                                          * ss
 1259                                                                          * */
 1260                                                                         continue;
 1261                                                         }
 1262                                                 }
 1263                                                 if ((site_scope == 0) &&
 1264                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1265                                                         continue;
 1266                                                 }
 1267                                                 memcpy(sas, sin6, sizeof(*sin6));
 1268                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1269                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 1270                                                 actual += sizeof(*sin6);
 1271                                                 if (actual >= limit) {
 1272                                                         return (actual);
 1273                                                 }
 1274                                         } else {
 1275                                                 continue;
 1276                                         }
 1277                                         break;
 1278 #endif
 1279                                 default:
 1280                                         /* TSNH */
 1281                                         break;
 1282                                 }
 1283                         }
 1284                 }
 1285         } else {
 1286                 struct sctp_laddr *laddr;
 1287 
 1288                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1289                         if (stcb) {
 1290                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1291                                         continue;
 1292                                 }
 1293                         }
 1294                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1295                                 continue;
 1296 
 1297                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1298                         sas = (struct sockaddr_storage *)((caddr_t)sas +
 1299                             laddr->ifa->address.sa.sa_len);
 1300                         actual += laddr->ifa->address.sa.sa_len;
 1301                         if (actual >= limit) {
 1302                                 return (actual);
 1303                         }
 1304                 }
 1305         }
 1306         return (actual);
 1307 }
 1308 
 1309 static size_t
 1310 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1311     struct sctp_tcb *stcb,
 1312     size_t limit,
 1313     struct sockaddr_storage *sas)
 1314 {
 1315         size_t size = 0;
 1316 
 1317         SCTP_IPI_ADDR_RLOCK();
 1318         /* fill up addresses for the endpoint's default vrf */
 1319         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1320             inp->def_vrf_id);
 1321         SCTP_IPI_ADDR_RUNLOCK();
 1322         return (size);
 1323 }
 1324 
 1325 /*
 1326  * NOTE: assumes addr lock is held
 1327  */
 1328 static int
 1329 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1330 {
 1331         int cnt = 0;
 1332         struct sctp_vrf *vrf = NULL;
 1333 
 1334         /*
 1335          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1336          * number of addresses that you COULD get. In reality the sub-set
 1337          * bound may have an exclusion list for a given TCB OR in the
 1338          * bound-all case a TCB may NOT include the loopback or other
 1339          * addresses as well.
 1340          */
 1341         vrf = sctp_find_vrf(vrf_id);
 1342         if (vrf == NULL) {
 1343                 return (0);
 1344         }
 1345         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1346                 struct sctp_ifn *sctp_ifn;
 1347                 struct sctp_ifa *sctp_ifa;
 1348 
 1349                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1350                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1351                                 /* Count them if they are the right type */
 1352                                 if (sctp_ifa->address.sa.sa_family == AF_INET) {
 1353                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1354                                                 cnt += sizeof(struct sockaddr_in6);
 1355                                         else
 1356                                                 cnt += sizeof(struct sockaddr_in);
 1357 
 1358                                 } else if (sctp_ifa->address.sa.sa_family == AF_INET6)
 1359                                         cnt += sizeof(struct sockaddr_in6);
 1360                         }
 1361                 }
 1362         } else {
 1363                 struct sctp_laddr *laddr;
 1364 
 1365                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1366                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 1367                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1368                                         cnt += sizeof(struct sockaddr_in6);
 1369                                 else
 1370                                         cnt += sizeof(struct sockaddr_in);
 1371 
 1372                         } else if (laddr->ifa->address.sa.sa_family == AF_INET6)
 1373                                 cnt += sizeof(struct sockaddr_in6);
 1374                 }
 1375         }
 1376         return (cnt);
 1377 }
 1378 
 1379 static int
 1380 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1381 {
 1382         int cnt = 0;
 1383 
 1384         SCTP_IPI_ADDR_RLOCK();
 1385         /* count addresses for the endpoint's default VRF */
 1386         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1387         SCTP_IPI_ADDR_RUNLOCK();
 1388         return (cnt);
 1389 }
 1390 
 1391 static int
 1392 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1393     size_t optsize, void *p, int delay)
 1394 {
 1395         int error = 0;
 1396         int creat_lock_on = 0;
 1397         struct sctp_tcb *stcb = NULL;
 1398         struct sockaddr *sa;
 1399         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1400         int added = 0;
 1401         uint32_t vrf_id;
 1402         int bad_addresses = 0;
 1403         sctp_assoc_t *a_id;
 1404 
 1405         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1406 
 1407         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1408             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1409                 /* We are already connected AND the TCP model */
 1410                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1411                 return (EADDRINUSE);
 1412         }
 1413         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1414             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1415                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1416                 return (EINVAL);
 1417         }
 1418         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1419                 SCTP_INP_RLOCK(inp);
 1420                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1421                 SCTP_INP_RUNLOCK(inp);
 1422         }
 1423         if (stcb) {
 1424                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1425                 return (EALREADY);
 1426         }
 1427         SCTP_INP_INCR_REF(inp);
 1428         SCTP_ASOC_CREATE_LOCK(inp);
 1429         creat_lock_on = 1;
 1430         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1431             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1432                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1433                 error = EFAULT;
 1434                 goto out_now;
 1435         }
 1436         totaddrp = (int *)optval;
 1437         totaddr = *totaddrp;
 1438         sa = (struct sockaddr *)(totaddrp + 1);
 1439         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
 1440         if ((stcb != NULL) || bad_addresses) {
 1441                 /* Already have or am bring up an association */
 1442                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1443                 creat_lock_on = 0;
 1444                 if (stcb)
 1445                         SCTP_TCB_UNLOCK(stcb);
 1446                 if (bad_addresses == 0) {
 1447                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1448                         error = EALREADY;
 1449                 }
 1450                 goto out_now;
 1451         }
 1452 #ifdef INET6
 1453         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1454             (num_v6 > 0)) {
 1455                 error = EINVAL;
 1456                 goto out_now;
 1457         }
 1458         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1459             (num_v4 > 0)) {
 1460                 struct in6pcb *inp6;
 1461 
 1462                 inp6 = (struct in6pcb *)inp;
 1463                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1464                         /*
 1465                          * if IPV6_V6ONLY flag, ignore connections destined
 1466                          * to a v4 addr or v4-mapped addr
 1467                          */
 1468                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1469                         error = EINVAL;
 1470                         goto out_now;
 1471                 }
 1472         }
 1473 #endif                          /* INET6 */
 1474         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1475             SCTP_PCB_FLAGS_UNBOUND) {
 1476                 /* Bind a ephemeral port */
 1477                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1478                 if (error) {
 1479                         goto out_now;
 1480                 }
 1481         }
 1482         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1483         vrf_id = inp->def_vrf_id;
 1484 
 1485 
 1486         /* We are GOOD to go */
 1487         stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id,
 1488             (struct thread *)p
 1489             );
 1490         if (stcb == NULL) {
 1491                 /* Gak! no memory */
 1492                 goto out_now;
 1493         }
 1494         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 1495         /* move to second address */
 1496         if (sa->sa_family == AF_INET)
 1497                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1498         else
 1499                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1500 
 1501         error = 0;
 1502         added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1503         /* Fill in the return id */
 1504         if (error) {
 1505                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
 1506                 goto out_now;
 1507         }
 1508         a_id = (sctp_assoc_t *) optval;
 1509         *a_id = sctp_get_associd(stcb);
 1510 
 1511         /* initialize authentication parameters for the assoc */
 1512         sctp_initialize_auth_params(inp, stcb);
 1513 
 1514         if (delay) {
 1515                 /* doing delayed connection */
 1516                 stcb->asoc.delayed_connection = 1;
 1517                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1518         } else {
 1519                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1520                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1521         }
 1522         SCTP_TCB_UNLOCK(stcb);
 1523         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1524                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1525                 /* Set the connected flag so we can queue data */
 1526                 soisconnecting(so);
 1527         }
 1528 out_now:
 1529         if (creat_lock_on) {
 1530                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1531         }
 1532         SCTP_INP_DECR_REF(inp);
 1533         return error;
 1534 }
 1535 
 1536 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1537         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1538             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1539                 SCTP_INP_RLOCK(inp); \
 1540                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1541                 if (stcb) { \
 1542                         SCTP_TCB_LOCK(stcb); \
 1543                 } \
 1544                 SCTP_INP_RUNLOCK(inp); \
 1545         } else if (assoc_id != 0) { \
 1546                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1547                 if (stcb == NULL) { \
 1548                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1549                         error = ENOENT; \
 1550                         break; \
 1551                 } \
 1552         } else { \
 1553                 stcb = NULL; \
 1554         } \
 1555   }
 1556 
 1557 
 1558 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size)  {\
 1559         if (size < sizeof(type)) { \
 1560                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1561                 error = EINVAL; \
 1562                 break; \
 1563         } else { \
 1564                 destp = (type *)srcp; \
 1565         } \
 1566       }
 1567 
 1568 static int
 1569 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1570     void *p)
 1571 {
 1572         struct sctp_inpcb *inp = NULL;
 1573         int error, val = 0;
 1574         struct sctp_tcb *stcb = NULL;
 1575 
 1576         if (optval == NULL) {
 1577                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1578                 return (EINVAL);
 1579         }
 1580         inp = (struct sctp_inpcb *)so->so_pcb;
 1581         if (inp == 0) {
 1582                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1583                 return EINVAL;
 1584         }
 1585         error = 0;
 1586 
 1587         switch (optname) {
 1588         case SCTP_NODELAY:
 1589         case SCTP_AUTOCLOSE:
 1590         case SCTP_EXPLICIT_EOR:
 1591         case SCTP_AUTO_ASCONF:
 1592         case SCTP_DISABLE_FRAGMENTS:
 1593         case SCTP_I_WANT_MAPPED_V4_ADDR:
 1594         case SCTP_USE_EXT_RCVINFO:
 1595                 SCTP_INP_RLOCK(inp);
 1596                 switch (optname) {
 1597                 case SCTP_DISABLE_FRAGMENTS:
 1598                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
 1599                         break;
 1600                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 1601                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
 1602                         break;
 1603                 case SCTP_AUTO_ASCONF:
 1604                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1605                                 /* only valid for bound all sockets */
 1606                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
 1607                         } else {
 1608                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1609                                 error = EINVAL;
 1610                                 goto flags_out;
 1611                         }
 1612                         break;
 1613                 case SCTP_EXPLICIT_EOR:
 1614                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
 1615                         break;
 1616                 case SCTP_NODELAY:
 1617                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
 1618                         break;
 1619                 case SCTP_USE_EXT_RCVINFO:
 1620                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
 1621                         break;
 1622                 case SCTP_AUTOCLOSE:
 1623                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
 1624                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
 1625                         else
 1626                                 val = 0;
 1627                         break;
 1628 
 1629                 default:
 1630                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1631                         error = ENOPROTOOPT;
 1632                 }               /* end switch (sopt->sopt_name) */
 1633                 if (optname != SCTP_AUTOCLOSE) {
 1634                         /* make it an "on/off" value */
 1635                         val = (val != 0);
 1636                 }
 1637                 if (*optsize < sizeof(val)) {
 1638                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1639                         error = EINVAL;
 1640                 }
 1641 flags_out:
 1642                 SCTP_INP_RUNLOCK(inp);
 1643                 if (error == 0) {
 1644                         /* return the option value */
 1645                         *(int *)optval = val;
 1646                         *optsize = sizeof(val);
 1647                 }
 1648                 break;
 1649         case SCTP_GET_PACKET_LOG:
 1650                 {
 1651 #ifdef  SCTP_PACKET_LOGGING
 1652                         uint8_t *target;
 1653                         int ret;
 1654 
 1655                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
 1656                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
 1657                         *optsize = ret;
 1658 #else
 1659                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1660                         error = EOPNOTSUPP;
 1661 #endif
 1662                         break;
 1663                 }
 1664         case SCTP_REUSE_PORT:
 1665                 {
 1666                         uint32_t *value;
 1667 
 1668                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 1669                                 /* Can't do this for a 1-m socket */
 1670                                 error = EINVAL;
 1671                                 break;
 1672                         }
 1673                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1674                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 1675                         *optsize = sizeof(uint32_t);
 1676                 }
 1677                 break;
 1678         case SCTP_PARTIAL_DELIVERY_POINT:
 1679                 {
 1680                         uint32_t *value;
 1681 
 1682                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1683                         *value = inp->partial_delivery_point;
 1684                         *optsize = sizeof(uint32_t);
 1685                 }
 1686                 break;
 1687         case SCTP_FRAGMENT_INTERLEAVE:
 1688                 {
 1689                         uint32_t *value;
 1690 
 1691                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1692                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
 1693                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
 1694                                         *value = SCTP_FRAG_LEVEL_2;
 1695                                 } else {
 1696                                         *value = SCTP_FRAG_LEVEL_1;
 1697                                 }
 1698                         } else {
 1699                                 *value = SCTP_FRAG_LEVEL_0;
 1700                         }
 1701                         *optsize = sizeof(uint32_t);
 1702                 }
 1703                 break;
 1704         case SCTP_CMT_ON_OFF:
 1705                 {
 1706                         struct sctp_assoc_value *av;
 1707 
 1708                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1709                         if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 1710                                 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1711                                 if (stcb) {
 1712                                         av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1713                                         SCTP_TCB_UNLOCK(stcb);
 1714 
 1715                                 } else {
 1716                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1717                                         error = ENOTCONN;
 1718                                 }
 1719                         } else {
 1720                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1721                                 error = ENOPROTOOPT;
 1722                         }
 1723                         *optsize = sizeof(*av);
 1724                 }
 1725                 break;
 1726                 /* EY - set socket option for nr_sacks  */
 1727         case SCTP_NR_SACK_ON_OFF:
 1728                 {
 1729                         struct sctp_assoc_value *av;
 1730 
 1731                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1732                         if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) {
 1733                                 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1734                                 if (stcb) {
 1735                                         av->assoc_value = stcb->asoc.sctp_nr_sack_on_off;
 1736                                         SCTP_TCB_UNLOCK(stcb);
 1737 
 1738                                 } else {
 1739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1740                                         error = ENOTCONN;
 1741                                 }
 1742                         } else {
 1743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1744                                 error = ENOPROTOOPT;
 1745                         }
 1746                         *optsize = sizeof(*av);
 1747                 }
 1748                 break;
 1749                 /* JRS - Get socket option for pluggable congestion control */
 1750         case SCTP_PLUGGABLE_CC:
 1751                 {
 1752                         struct sctp_assoc_value *av;
 1753 
 1754                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1755                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1756                         if (stcb) {
 1757                                 av->assoc_value = stcb->asoc.congestion_control_module;
 1758                                 SCTP_TCB_UNLOCK(stcb);
 1759                         } else {
 1760                                 av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
 1761                         }
 1762                         *optsize = sizeof(*av);
 1763                 }
 1764                 break;
 1765         case SCTP_GET_ADDR_LEN:
 1766                 {
 1767                         struct sctp_assoc_value *av;
 1768 
 1769                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1770                         error = EINVAL;
 1771 #ifdef INET
 1772                         if (av->assoc_value == AF_INET) {
 1773                                 av->assoc_value = sizeof(struct sockaddr_in);
 1774                                 error = 0;
 1775                         }
 1776 #endif
 1777 #ifdef INET6
 1778                         if (av->assoc_value == AF_INET6) {
 1779                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1780                                 error = 0;
 1781                         }
 1782 #endif
 1783                         if (error) {
 1784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1785                         }
 1786                         *optsize = sizeof(*av);
 1787                 }
 1788                 break;
 1789         case SCTP_GET_ASSOC_NUMBER:
 1790                 {
 1791                         uint32_t *value, cnt;
 1792 
 1793                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1794                         cnt = 0;
 1795                         SCTP_INP_RLOCK(inp);
 1796                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1797                                 cnt++;
 1798                         }
 1799                         SCTP_INP_RUNLOCK(inp);
 1800                         *value = cnt;
 1801                         *optsize = sizeof(uint32_t);
 1802                 }
 1803                 break;
 1804 
 1805         case SCTP_GET_ASSOC_ID_LIST:
 1806                 {
 1807                         struct sctp_assoc_ids *ids;
 1808                         unsigned int at, limit;
 1809 
 1810                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1811                         at = 0;
 1812                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1813                         SCTP_INP_RLOCK(inp);
 1814                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1815                                 if (at < limit) {
 1816                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1817                                 } else {
 1818                                         error = EINVAL;
 1819                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1820                                         break;
 1821                                 }
 1822                         }
 1823                         SCTP_INP_RUNLOCK(inp);
 1824                         ids->gaids_number_of_ids = at;
 1825                         *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1826                 }
 1827                 break;
 1828         case SCTP_CONTEXT:
 1829                 {
 1830                         struct sctp_assoc_value *av;
 1831 
 1832                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1833                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1834 
 1835                         if (stcb) {
 1836                                 av->assoc_value = stcb->asoc.context;
 1837                                 SCTP_TCB_UNLOCK(stcb);
 1838                         } else {
 1839                                 SCTP_INP_RLOCK(inp);
 1840                                 av->assoc_value = inp->sctp_context;
 1841                                 SCTP_INP_RUNLOCK(inp);
 1842                         }
 1843                         *optsize = sizeof(*av);
 1844                 }
 1845                 break;
 1846         case SCTP_VRF_ID:
 1847                 {
 1848                         uint32_t *default_vrfid;
 1849 
 1850                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1851                         *default_vrfid = inp->def_vrf_id;
 1852                         break;
 1853                 }
 1854         case SCTP_GET_ASOC_VRF:
 1855                 {
 1856                         struct sctp_assoc_value *id;
 1857 
 1858                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1859                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1860                         if (stcb == NULL) {
 1861                                 error = EINVAL;
 1862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1863                                 break;
 1864                         }
 1865                         id->assoc_value = stcb->asoc.vrf_id;
 1866                         break;
 1867                 }
 1868         case SCTP_GET_VRF_IDS:
 1869                 {
 1870                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1871                         error = EOPNOTSUPP;
 1872                         break;
 1873                 }
 1874         case SCTP_GET_NONCE_VALUES:
 1875                 {
 1876                         struct sctp_get_nonce_values *gnv;
 1877 
 1878                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 1879                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 1880 
 1881                         if (stcb) {
 1882                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 1883                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 1884                                 SCTP_TCB_UNLOCK(stcb);
 1885                         } else {
 1886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1887                                 error = ENOTCONN;
 1888                         }
 1889                         *optsize = sizeof(*gnv);
 1890                 }
 1891                 break;
 1892         case SCTP_DELAYED_SACK:
 1893                 {
 1894                         struct sctp_sack_info *sack;
 1895 
 1896                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 1897                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 1898                         if (stcb) {
 1899                                 sack->sack_delay = stcb->asoc.delayed_ack;
 1900                                 sack->sack_freq = stcb->asoc.sack_freq;
 1901                                 SCTP_TCB_UNLOCK(stcb);
 1902                         } else {
 1903                                 SCTP_INP_RLOCK(inp);
 1904                                 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 1905                                 sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 1906                                 SCTP_INP_RUNLOCK(inp);
 1907                         }
 1908                         *optsize = sizeof(*sack);
 1909                 }
 1910                 break;
 1911 
 1912         case SCTP_GET_SNDBUF_USE:
 1913                 {
 1914                         struct sctp_sockstat *ss;
 1915 
 1916                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 1917                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 1918 
 1919                         if (stcb) {
 1920                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 1921                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 1922                                     stcb->asoc.size_on_all_streams);
 1923                                 SCTP_TCB_UNLOCK(stcb);
 1924                         } else {
 1925                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1926                                 error = ENOTCONN;
 1927                         }
 1928                         *optsize = sizeof(struct sctp_sockstat);
 1929                 }
 1930                 break;
 1931         case SCTP_MAX_BURST:
 1932                 {
 1933                         uint8_t *value;
 1934 
 1935                         SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
 1936 
 1937                         SCTP_INP_RLOCK(inp);
 1938                         *value = inp->sctp_ep.max_burst;
 1939                         SCTP_INP_RUNLOCK(inp);
 1940                         *optsize = sizeof(uint8_t);
 1941                 }
 1942                 break;
 1943         case SCTP_MAXSEG:
 1944                 {
 1945                         struct sctp_assoc_value *av;
 1946                         int ovh;
 1947 
 1948                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1949                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1950 
 1951                         if (stcb) {
 1952                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 1953                                 SCTP_TCB_UNLOCK(stcb);
 1954                         } else {
 1955                                 SCTP_INP_RLOCK(inp);
 1956                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1957                                         ovh = SCTP_MED_OVERHEAD;
 1958                                 } else {
 1959                                         ovh = SCTP_MED_V4_OVERHEAD;
 1960                                 }
 1961                                 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 1962                                         av->assoc_value = 0;
 1963                                 else
 1964                                         av->assoc_value = inp->sctp_frag_point - ovh;
 1965                                 SCTP_INP_RUNLOCK(inp);
 1966                         }
 1967                         *optsize = sizeof(struct sctp_assoc_value);
 1968                 }
 1969                 break;
 1970         case SCTP_GET_STAT_LOG:
 1971                 error = sctp_fill_stat_log(optval, optsize);
 1972                 break;
 1973         case SCTP_EVENTS:
 1974                 {
 1975                         struct sctp_event_subscribe *events;
 1976 
 1977                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 1978                         memset(events, 0, sizeof(*events));
 1979                         SCTP_INP_RLOCK(inp);
 1980                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 1981                                 events->sctp_data_io_event = 1;
 1982 
 1983                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 1984                                 events->sctp_association_event = 1;
 1985 
 1986                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 1987                                 events->sctp_address_event = 1;
 1988 
 1989                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 1990                                 events->sctp_send_failure_event = 1;
 1991 
 1992                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 1993                                 events->sctp_peer_error_event = 1;
 1994 
 1995                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 1996                                 events->sctp_shutdown_event = 1;
 1997 
 1998                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 1999                                 events->sctp_partial_delivery_event = 1;
 2000 
 2001                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2002                                 events->sctp_adaptation_layer_event = 1;
 2003 
 2004                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2005                                 events->sctp_authentication_event = 1;
 2006 
 2007                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2008                                 events->sctp_sender_dry_event = 1;
 2009 
 2010                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2011                                 events->sctp_stream_reset_events = 1;
 2012                         SCTP_INP_RUNLOCK(inp);
 2013                         *optsize = sizeof(struct sctp_event_subscribe);
 2014                 }
 2015                 break;
 2016 
 2017         case SCTP_ADAPTATION_LAYER:
 2018                 {
 2019                         uint32_t *value;
 2020 
 2021                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2022 
 2023                         SCTP_INP_RLOCK(inp);
 2024                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2025                         SCTP_INP_RUNLOCK(inp);
 2026                         *optsize = sizeof(uint32_t);
 2027                 }
 2028                 break;
 2029         case SCTP_SET_INITIAL_DBG_SEQ:
 2030                 {
 2031                         uint32_t *value;
 2032 
 2033                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2034                         SCTP_INP_RLOCK(inp);
 2035                         *value = inp->sctp_ep.initial_sequence_debug;
 2036                         SCTP_INP_RUNLOCK(inp);
 2037                         *optsize = sizeof(uint32_t);
 2038                 }
 2039                 break;
 2040         case SCTP_GET_LOCAL_ADDR_SIZE:
 2041                 {
 2042                         uint32_t *value;
 2043 
 2044                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2045                         SCTP_INP_RLOCK(inp);
 2046                         *value = sctp_count_max_addresses(inp);
 2047                         SCTP_INP_RUNLOCK(inp);
 2048                         *optsize = sizeof(uint32_t);
 2049                 }
 2050                 break;
 2051         case SCTP_GET_REMOTE_ADDR_SIZE:
 2052                 {
 2053                         uint32_t *value;
 2054                         size_t size;
 2055                         struct sctp_nets *net;
 2056 
 2057                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2058                         /* FIXME MT: change to sctp_assoc_value? */
 2059                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 2060 
 2061                         if (stcb) {
 2062                                 size = 0;
 2063                                 /* Count the sizes */
 2064                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2065                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
 2066                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
 2067                                                 size += sizeof(struct sockaddr_in6);
 2068                                         } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
 2069                                                 size += sizeof(struct sockaddr_in);
 2070                                         } else {
 2071                                                 /* huh */
 2072                                                 break;
 2073                                         }
 2074                                 }
 2075                                 SCTP_TCB_UNLOCK(stcb);
 2076                                 *value = (uint32_t) size;
 2077                         } else {
 2078                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2079                                 error = ENOTCONN;
 2080                         }
 2081                         *optsize = sizeof(uint32_t);
 2082                 }
 2083                 break;
 2084         case SCTP_GET_PEER_ADDRESSES:
 2085                 /*
 2086                  * Get the address information, an array is passed in to
 2087                  * fill up we pack it.
 2088                  */
 2089                 {
 2090                         size_t cpsz, left;
 2091                         struct sockaddr_storage *sas;
 2092                         struct sctp_nets *net;
 2093                         struct sctp_getaddresses *saddr;
 2094 
 2095                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2096                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2097 
 2098                         if (stcb) {
 2099                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
 2100                                 *optsize = sizeof(struct sctp_getaddresses);
 2101                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2102 
 2103                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2104                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
 2105                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
 2106                                                 cpsz = sizeof(struct sockaddr_in6);
 2107                                         } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
 2108                                                 cpsz = sizeof(struct sockaddr_in);
 2109                                         } else {
 2110                                                 /* huh */
 2111                                                 break;
 2112                                         }
 2113                                         if (left < cpsz) {
 2114                                                 /* not enough room. */
 2115                                                 break;
 2116                                         }
 2117 #ifdef INET6
 2118                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2119                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
 2120                                                 /* Must map the address */
 2121                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
 2122                                                     (struct sockaddr_in6 *)sas);
 2123                                         } else {
 2124 #endif
 2125                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2126 #ifdef INET6
 2127                                         }
 2128 #endif
 2129                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2130 
 2131                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2132                                         left -= cpsz;
 2133                                         *optsize += cpsz;
 2134                                 }
 2135                                 SCTP_TCB_UNLOCK(stcb);
 2136                         } else {
 2137                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2138                                 error = ENOENT;
 2139                         }
 2140                 }
 2141                 break;
 2142         case SCTP_GET_LOCAL_ADDRESSES:
 2143                 {
 2144                         size_t limit, actual;
 2145                         struct sockaddr_storage *sas;
 2146                         struct sctp_getaddresses *saddr;
 2147 
 2148                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2149                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2150 
 2151                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2152                         limit = *optsize - sizeof(sctp_assoc_t);
 2153                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2154                         if (stcb) {
 2155                                 SCTP_TCB_UNLOCK(stcb);
 2156                         }
 2157                         *optsize = sizeof(struct sockaddr_storage) + actual;
 2158                 }
 2159                 break;
 2160         case SCTP_PEER_ADDR_PARAMS:
 2161                 {
 2162                         struct sctp_paddrparams *paddrp;
 2163                         struct sctp_nets *net;
 2164 
 2165                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2166                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2167 
 2168                         net = NULL;
 2169                         if (stcb) {
 2170                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 2171                         } else {
 2172                                 /*
 2173                                  * We increment here since
 2174                                  * sctp_findassociation_ep_addr() wil do a
 2175                                  * decrement if it finds the stcb as long as
 2176                                  * the locked tcb (last argument) is NOT a
 2177                                  * TCB.. aka NULL.
 2178                                  */
 2179                                 SCTP_INP_INCR_REF(inp);
 2180                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
 2181                                 if (stcb == NULL) {
 2182                                         SCTP_INP_DECR_REF(inp);
 2183                                 }
 2184                         }
 2185                         if (stcb && (net == NULL)) {
 2186                                 struct sockaddr *sa;
 2187 
 2188                                 sa = (struct sockaddr *)&paddrp->spp_address;
 2189                                 if (sa->sa_family == AF_INET) {
 2190                                         struct sockaddr_in *sin;
 2191 
 2192                                         sin = (struct sockaddr_in *)sa;
 2193                                         if (sin->sin_addr.s_addr) {
 2194                                                 error = EINVAL;
 2195                                                 SCTP_TCB_UNLOCK(stcb);
 2196                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2197                                                 break;
 2198                                         }
 2199                                 } else if (sa->sa_family == AF_INET6) {
 2200                                         struct sockaddr_in6 *sin6;
 2201 
 2202                                         sin6 = (struct sockaddr_in6 *)sa;
 2203                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2204                                                 error = EINVAL;
 2205                                                 SCTP_TCB_UNLOCK(stcb);
 2206                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2207                                                 break;
 2208                                         }
 2209                                 } else {
 2210                                         error = EAFNOSUPPORT;
 2211                                         SCTP_TCB_UNLOCK(stcb);
 2212                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2213                                         break;
 2214                                 }
 2215                         }
 2216                         if (stcb) {
 2217                                 /* Applys to the specific association */
 2218                                 paddrp->spp_flags = 0;
 2219                                 if (net) {
 2220                                         int ovh;
 2221 
 2222                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2223                                                 ovh = SCTP_MED_OVERHEAD;
 2224                                         } else {
 2225                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2226                                         }
 2227 
 2228 
 2229                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2230                                         paddrp->spp_pathmtu = net->mtu - ovh;
 2231                                         /* get flags for HB */
 2232                                         if (net->dest_state & SCTP_ADDR_NOHB)
 2233                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2234                                         else
 2235                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2236                                         /* get flags for PMTU */
 2237                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 2238                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2239                                         } else {
 2240                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2241                                         }
 2242 #ifdef INET
 2243                                         if (net->ro._l_addr.sin.sin_family == AF_INET) {
 2244                                                 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc;
 2245                                                 paddrp->spp_flags |= SPP_IPV4_TOS;
 2246                                         }
 2247 #endif
 2248 #ifdef INET6
 2249                                         if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
 2250                                                 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel;
 2251                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2252                                         }
 2253 #endif
 2254                                 } else {
 2255                                         /*
 2256                                          * No destination so return default
 2257                                          * value
 2258                                          */
 2259                                         int cnt = 0;
 2260 
 2261                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2262                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
 2263 #ifdef INET
 2264                                         paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc;
 2265                                         paddrp->spp_flags |= SPP_IPV4_TOS;
 2266 #endif
 2267 #ifdef INET6
 2268                                         paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel;
 2269                                         paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2270 #endif
 2271                                         /* default settings should be these */
 2272                                         if (stcb->asoc.hb_is_disabled == 0) {
 2273                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2274                                         } else {
 2275                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2276                                         }
 2277                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2278                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 2279                                                         cnt++;
 2280                                                 }
 2281                                         }
 2282                                         if (cnt) {
 2283                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2284                                         }
 2285                                 }
 2286                                 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2287                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2288                                 SCTP_TCB_UNLOCK(stcb);
 2289                         } else {
 2290                                 /* Use endpoint defaults */
 2291                                 SCTP_INP_RLOCK(inp);
 2292                                 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2293                                 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2294                                 paddrp->spp_assoc_id = (sctp_assoc_t) 0;
 2295                                 /* get inp's default */
 2296 #ifdef INET
 2297                                 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos;
 2298                                 paddrp->spp_flags |= SPP_IPV4_TOS;
 2299 #endif
 2300 #ifdef INET6
 2301                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2302                                         paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo;
 2303                                         paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2304                                 }
 2305 #endif
 2306                                 /* can't return this */
 2307                                 paddrp->spp_pathmtu = 0;
 2308 
 2309                                 /* default behavior, no stcb */
 2310                                 paddrp->spp_flags = SPP_PMTUD_ENABLE;
 2311 
 2312                                 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2313                                         paddrp->spp_flags |= SPP_HB_ENABLE;
 2314                                 } else {
 2315                                         paddrp->spp_flags |= SPP_HB_DISABLE;
 2316                                 }
 2317                                 SCTP_INP_RUNLOCK(inp);
 2318                         }
 2319                         *optsize = sizeof(struct sctp_paddrparams);
 2320                 }
 2321                 break;
 2322         case SCTP_GET_PEER_ADDR_INFO:
 2323                 {
 2324                         struct sctp_paddrinfo *paddri;
 2325                         struct sctp_nets *net;
 2326 
 2327                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2328                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2329 
 2330                         net = NULL;
 2331                         if (stcb) {
 2332                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
 2333                         } else {
 2334                                 /*
 2335                                  * We increment here since
 2336                                  * sctp_findassociation_ep_addr() wil do a
 2337                                  * decrement if it finds the stcb as long as
 2338                                  * the locked tcb (last argument) is NOT a
 2339                                  * TCB.. aka NULL.
 2340                                  */
 2341                                 SCTP_INP_INCR_REF(inp);
 2342                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
 2343                                 if (stcb == NULL) {
 2344                                         SCTP_INP_DECR_REF(inp);
 2345                                 }
 2346                         }
 2347 
 2348                         if ((stcb) && (net)) {
 2349                                 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB);
 2350                                 paddri->spinfo_cwnd = net->cwnd;
 2351                                 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1;
 2352                                 paddri->spinfo_rto = net->RTO;
 2353                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2354                                 SCTP_TCB_UNLOCK(stcb);
 2355                         } else {
 2356                                 if (stcb) {
 2357                                         SCTP_TCB_UNLOCK(stcb);
 2358                                 }
 2359                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2360                                 error = ENOENT;
 2361                         }
 2362                         *optsize = sizeof(struct sctp_paddrinfo);
 2363                 }
 2364                 break;
 2365         case SCTP_PCB_STATUS:
 2366                 {
 2367                         struct sctp_pcbinfo *spcb;
 2368 
 2369                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2370                         sctp_fill_pcbinfo(spcb);
 2371                         *optsize = sizeof(struct sctp_pcbinfo);
 2372                 }
 2373                 break;
 2374 
 2375         case SCTP_STATUS:
 2376                 {
 2377                         struct sctp_nets *net;
 2378                         struct sctp_status *sstat;
 2379 
 2380                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2381                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2382 
 2383                         if (stcb == NULL) {
 2384                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2385                                 error = EINVAL;
 2386                                 break;
 2387                         }
 2388                         /*
 2389                          * I think passing the state is fine since
 2390                          * sctp_constants.h will be available to the user
 2391                          * land.
 2392                          */
 2393                         sstat->sstat_state = stcb->asoc.state;
 2394                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2395                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2396                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2397                         /*
 2398                          * We can't include chunks that have been passed to
 2399                          * the socket layer. Only things in queue.
 2400                          */
 2401                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2402                             stcb->asoc.cnt_on_all_streams);
 2403 
 2404 
 2405                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2406                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2407                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2408                         memcpy(&sstat->sstat_primary.spinfo_address,
 2409                             &stcb->asoc.primary_destination->ro._l_addr,
 2410                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2411                         net = stcb->asoc.primary_destination;
 2412                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2413                         /*
 2414                          * Again the user can get info from sctp_constants.h
 2415                          * for what the state of the network is.
 2416                          */
 2417                         sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK;
 2418                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2419                         sstat->sstat_primary.spinfo_srtt = net->lastsa;
 2420                         sstat->sstat_primary.spinfo_rto = net->RTO;
 2421                         sstat->sstat_primary.spinfo_mtu = net->mtu;
 2422                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2423                         SCTP_TCB_UNLOCK(stcb);
 2424                         *optsize = sizeof(*sstat);
 2425                 }
 2426                 break;
 2427         case SCTP_RTOINFO:
 2428                 {
 2429                         struct sctp_rtoinfo *srto;
 2430 
 2431                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2432                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2433 
 2434                         if (stcb) {
 2435                                 srto->srto_initial = stcb->asoc.initial_rto;
 2436                                 srto->srto_max = stcb->asoc.maxrto;
 2437                                 srto->srto_min = stcb->asoc.minrto;
 2438                                 SCTP_TCB_UNLOCK(stcb);
 2439                         } else {
 2440                                 SCTP_INP_RLOCK(inp);
 2441                                 srto->srto_initial = inp->sctp_ep.initial_rto;
 2442                                 srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2443                                 srto->srto_min = inp->sctp_ep.sctp_minrto;
 2444                                 SCTP_INP_RUNLOCK(inp);
 2445                         }
 2446                         *optsize = sizeof(*srto);
 2447                 }
 2448                 break;
 2449         case SCTP_ASSOCINFO:
 2450                 {
 2451                         struct sctp_assocparams *sasoc;
 2452                         uint32_t oldval;
 2453 
 2454                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2455                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2456 
 2457                         if (stcb) {
 2458                                 oldval = sasoc->sasoc_cookie_life;
 2459                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2460                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2461                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2462                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2463                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2464                                 SCTP_TCB_UNLOCK(stcb);
 2465                         } else {
 2466                                 SCTP_INP_RLOCK(inp);
 2467                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2468                                 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2469                                 sasoc->sasoc_number_peer_destinations = 0;
 2470                                 sasoc->sasoc_peer_rwnd = 0;
 2471                                 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2472                                 SCTP_INP_RUNLOCK(inp);
 2473                         }
 2474                         *optsize = sizeof(*sasoc);
 2475                 }
 2476                 break;
 2477         case SCTP_DEFAULT_SEND_PARAM:
 2478                 {
 2479                         struct sctp_sndrcvinfo *s_info;
 2480 
 2481                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2482                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2483 
 2484                         if (stcb) {
 2485                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2486                                 SCTP_TCB_UNLOCK(stcb);
 2487                         } else {
 2488                                 SCTP_INP_RLOCK(inp);
 2489                                 memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2490                                 SCTP_INP_RUNLOCK(inp);
 2491                         }
 2492                         *optsize = sizeof(*s_info);
 2493                 }
 2494                 break;
 2495         case SCTP_INITMSG:
 2496                 {
 2497                         struct sctp_initmsg *sinit;
 2498 
 2499                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2500                         SCTP_INP_RLOCK(inp);
 2501                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2502                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2503                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2504                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2505                         SCTP_INP_RUNLOCK(inp);
 2506                         *optsize = sizeof(*sinit);
 2507                 }
 2508                 break;
 2509         case SCTP_PRIMARY_ADDR:
 2510                 /* we allow a "get" operation on this */
 2511                 {
 2512                         struct sctp_setprim *ssp;
 2513 
 2514                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2515                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2516 
 2517                         if (stcb) {
 2518                                 /* simply copy out the sockaddr_storage... */
 2519                                 int len;
 2520 
 2521                                 len = *optsize;
 2522                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
 2523                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
 2524 
 2525                                 memcpy(&ssp->ssp_addr,
 2526                                     &stcb->asoc.primary_destination->ro._l_addr,
 2527                                     len);
 2528                                 SCTP_TCB_UNLOCK(stcb);
 2529                         } else {
 2530                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2531                                 error = EINVAL;
 2532                         }
 2533                         *optsize = sizeof(*ssp);
 2534                 }
 2535                 break;
 2536 
 2537         case SCTP_HMAC_IDENT:
 2538                 {
 2539                         struct sctp_hmacalgo *shmac;
 2540                         sctp_hmaclist_t *hmaclist;
 2541                         uint32_t size;
 2542                         int i;
 2543 
 2544                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2545 
 2546                         SCTP_INP_RLOCK(inp);
 2547                         hmaclist = inp->sctp_ep.local_hmacs;
 2548                         if (hmaclist == NULL) {
 2549                                 /* no HMACs to return */
 2550                                 *optsize = sizeof(*shmac);
 2551                                 SCTP_INP_RUNLOCK(inp);
 2552                                 break;
 2553                         }
 2554                         /* is there room for all of the hmac ids? */
 2555                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2556                             sizeof(shmac->shmac_idents[0]));
 2557                         if ((size_t)(*optsize) < size) {
 2558                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2559                                 error = EINVAL;
 2560                                 SCTP_INP_RUNLOCK(inp);
 2561                                 break;
 2562                         }
 2563                         /* copy in the list */
 2564                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2565                         for (i = 0; i < hmaclist->num_algo; i++) {
 2566                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2567                         }
 2568                         SCTP_INP_RUNLOCK(inp);
 2569                         *optsize = size;
 2570                         break;
 2571                 }
 2572         case SCTP_AUTH_ACTIVE_KEY:
 2573                 {
 2574                         struct sctp_authkeyid *scact;
 2575 
 2576                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2577                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2578 
 2579                         if (stcb) {
 2580                                 /* get the active key on the assoc */
 2581                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2582                                 SCTP_TCB_UNLOCK(stcb);
 2583                         } else {
 2584                                 /* get the endpoint active key */
 2585                                 SCTP_INP_RLOCK(inp);
 2586                                 scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2587                                 SCTP_INP_RUNLOCK(inp);
 2588                         }
 2589                         *optsize = sizeof(*scact);
 2590                         break;
 2591                 }
 2592         case SCTP_LOCAL_AUTH_CHUNKS:
 2593                 {
 2594                         struct sctp_authchunks *sac;
 2595                         sctp_auth_chklist_t *chklist = NULL;
 2596                         size_t size = 0;
 2597 
 2598                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2599                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2600 
 2601                         if (stcb) {
 2602                                 /* get off the assoc */
 2603                                 chklist = stcb->asoc.local_auth_chunks;
 2604                                 /* is there enough space? */
 2605                                 size = sctp_auth_get_chklist_size(chklist);
 2606                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2607                                         error = EINVAL;
 2608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2609                                 } else {
 2610                                         /* copy in the chunks */
 2611                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2612                                 }
 2613                                 SCTP_TCB_UNLOCK(stcb);
 2614                         } else {
 2615                                 /* get off the endpoint */
 2616                                 SCTP_INP_RLOCK(inp);
 2617                                 chklist = inp->sctp_ep.local_auth_chunks;
 2618                                 /* is there enough space? */
 2619                                 size = sctp_auth_get_chklist_size(chklist);
 2620                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2621                                         error = EINVAL;
 2622                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2623                                 } else {
 2624                                         /* copy in the chunks */
 2625                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2626                                 }
 2627                                 SCTP_INP_RUNLOCK(inp);
 2628                         }
 2629                         *optsize = sizeof(struct sctp_authchunks) + size;
 2630                         break;
 2631                 }
 2632         case SCTP_PEER_AUTH_CHUNKS:
 2633                 {
 2634                         struct sctp_authchunks *sac;
 2635                         sctp_auth_chklist_t *chklist = NULL;
 2636                         size_t size = 0;
 2637 
 2638                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2639                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2640 
 2641                         if (stcb) {
 2642                                 /* get off the assoc */
 2643                                 chklist = stcb->asoc.peer_auth_chunks;
 2644                                 /* is there enough space? */
 2645                                 size = sctp_auth_get_chklist_size(chklist);
 2646                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2647                                         error = EINVAL;
 2648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2649                                 } else {
 2650                                         /* copy in the chunks */
 2651                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2652                                 }
 2653                                 SCTP_TCB_UNLOCK(stcb);
 2654                         } else {
 2655                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2656                                 error = ENOENT;
 2657                         }
 2658                         *optsize = sizeof(struct sctp_authchunks) + size;
 2659                         break;
 2660                 }
 2661 
 2662 
 2663         default:
 2664                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 2665                 error = ENOPROTOOPT;
 2666                 *optsize = 0;
 2667                 break;
 2668         }                       /* end switch (sopt->sopt_name) */
 2669         return (error);
 2670 }
 2671 
 2672 static int
 2673 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 2674     void *p)
 2675 {
 2676         int error, set_opt;
 2677         uint32_t *mopt;
 2678         struct sctp_tcb *stcb = NULL;
 2679         struct sctp_inpcb *inp = NULL;
 2680         uint32_t vrf_id;
 2681 
 2682         if (optval == NULL) {
 2683                 SCTP_PRINTF("optval is NULL\n");
 2684                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2685                 return (EINVAL);
 2686         }
 2687         inp = (struct sctp_inpcb *)so->so_pcb;
 2688         if (inp == 0) {
 2689                 SCTP_PRINTF("inp is NULL?\n");
 2690                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2691                 return EINVAL;
 2692         }
 2693         vrf_id = inp->def_vrf_id;
 2694 
 2695         error = 0;
 2696         switch (optname) {
 2697         case SCTP_NODELAY:
 2698         case SCTP_AUTOCLOSE:
 2699         case SCTP_AUTO_ASCONF:
 2700         case SCTP_EXPLICIT_EOR:
 2701         case SCTP_DISABLE_FRAGMENTS:
 2702         case SCTP_USE_EXT_RCVINFO:
 2703         case SCTP_I_WANT_MAPPED_V4_ADDR:
 2704                 /* copy in the option value */
 2705                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 2706                 set_opt = 0;
 2707                 if (error)
 2708                         break;
 2709                 switch (optname) {
 2710                 case SCTP_DISABLE_FRAGMENTS:
 2711                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 2712                         break;
 2713                 case SCTP_AUTO_ASCONF:
 2714                         /*
 2715                          * NOTE: we don't really support this flag
 2716                          */
 2717                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 2718                                 /* only valid for bound all sockets */
 2719                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 2720                         } else {
 2721                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2722                                 return (EINVAL);
 2723                         }
 2724                         break;
 2725                 case SCTP_EXPLICIT_EOR:
 2726                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 2727                         break;
 2728                 case SCTP_USE_EXT_RCVINFO:
 2729                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 2730                         break;
 2731                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 2732                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2733                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 2734                         } else {
 2735                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2736                                 return (EINVAL);
 2737                         }
 2738                         break;
 2739                 case SCTP_NODELAY:
 2740                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 2741                         break;
 2742                 case SCTP_AUTOCLOSE:
 2743                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2744                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 2745                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2746                                 return (EINVAL);
 2747                         }
 2748                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 2749                         /*
 2750                          * The value is in ticks. Note this does not effect
 2751                          * old associations, only new ones.
 2752                          */
 2753                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 2754                         break;
 2755                 }
 2756                 SCTP_INP_WLOCK(inp);
 2757                 if (*mopt != 0) {
 2758                         sctp_feature_on(inp, set_opt);
 2759                 } else {
 2760                         sctp_feature_off(inp, set_opt);
 2761                 }
 2762                 SCTP_INP_WUNLOCK(inp);
 2763                 break;
 2764         case SCTP_REUSE_PORT:
 2765                 {
 2766                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 2767                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 2768                                 /* Can't set it after we are bound */
 2769                                 error = EINVAL;
 2770                                 break;
 2771                         }
 2772                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 2773                                 /* Can't do this for a 1-m socket */
 2774                                 error = EINVAL;
 2775                                 break;
 2776                         }
 2777                         if (optval)
 2778                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 2779                         else
 2780                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 2781                 }
 2782                 break;
 2783         case SCTP_PARTIAL_DELIVERY_POINT:
 2784                 {
 2785                         uint32_t *value;
 2786 
 2787                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 2788                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 2789                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2790                                 error = EINVAL;
 2791                                 break;
 2792                         }
 2793                         inp->partial_delivery_point = *value;
 2794                 }
 2795                 break;
 2796         case SCTP_FRAGMENT_INTERLEAVE:
 2797                 /* not yet until we re-write sctp_recvmsg() */
 2798                 {
 2799                         uint32_t *level;
 2800 
 2801                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 2802                         if (*level == SCTP_FRAG_LEVEL_2) {
 2803                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 2804                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 2805                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 2806                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 2807                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 2808                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 2809                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 2810                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 2811 
 2812                         } else {
 2813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2814                                 error = EINVAL;
 2815                         }
 2816                 }
 2817                 break;
 2818         case SCTP_CMT_ON_OFF:
 2819                 {
 2820                         struct sctp_assoc_value *av;
 2821 
 2822                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 2823                         if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 2824                                 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2825                                 if (stcb) {
 2826                                         stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value;
 2827                                         SCTP_TCB_UNLOCK(stcb);
 2828                                 } else {
 2829                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2830                                         error = ENOTCONN;
 2831                                 }
 2832                         } else {
 2833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 2834                                 error = ENOPROTOOPT;
 2835                         }
 2836                 }
 2837                 break;
 2838                 /* EY nr_sack_on_off socket option */
 2839         case SCTP_NR_SACK_ON_OFF:
 2840                 {
 2841                         struct sctp_assoc_value *av;
 2842 
 2843                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 2844                         if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) {
 2845                                 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2846                                 if (stcb) {
 2847                                         stcb->asoc.sctp_nr_sack_on_off = (uint8_t) av->assoc_value;
 2848                                         SCTP_TCB_UNLOCK(stcb);
 2849                                 } else {
 2850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2851                                         error = ENOTCONN;
 2852                                 }
 2853                         } else {
 2854                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 2855                                 error = ENOPROTOOPT;
 2856                         }
 2857                 }
 2858                 break;
 2859                 /* JRS - Set socket option for pluggable congestion control */
 2860         case SCTP_PLUGGABLE_CC:
 2861                 {
 2862                         struct sctp_assoc_value *av;
 2863 
 2864                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 2865                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2866                         if (stcb) {
 2867                                 switch (av->assoc_value) {
 2868                                         /*
 2869                                          * JRS - Standard TCP congestion
 2870                                          * control
 2871                                          */
 2872                                 case SCTP_CC_RFC2581:
 2873                                         {
 2874                                                 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581;
 2875                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
 2876                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack;
 2877                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr;
 2878                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
 2879                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
 2880                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
 2881                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
 2882                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
 2883                                                 SCTP_TCB_UNLOCK(stcb);
 2884                                                 break;
 2885                                         }
 2886                                         /*
 2887                                          * JRS - High Speed TCP congestion
 2888                                          * control (Floyd)
 2889                                          */
 2890                                 case SCTP_CC_HSTCP:
 2891                                         {
 2892                                                 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP;
 2893                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
 2894                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack;
 2895                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr;
 2896                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
 2897                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
 2898                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
 2899                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
 2900                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
 2901                                                 SCTP_TCB_UNLOCK(stcb);
 2902                                                 break;
 2903                                         }
 2904                                         /* JRS - HTCP congestion control */
 2905                                 case SCTP_CC_HTCP:
 2906                                         {
 2907                                                 stcb->asoc.congestion_control_module = SCTP_CC_HTCP;
 2908                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param;
 2909                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack;
 2910                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr;
 2911                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout;
 2912                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo;
 2913                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
 2914                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
 2915                                                 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer;
 2916                                                 SCTP_TCB_UNLOCK(stcb);
 2917                                                 break;
 2918                                         }
 2919                                         /*
 2920                                          * JRS - All other values are
 2921                                          * invalid
 2922                                          */
 2923                                 default:
 2924                                         {
 2925                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2926                                                 error = EINVAL;
 2927                                                 SCTP_TCB_UNLOCK(stcb);
 2928                                                 break;
 2929                                         }
 2930                                 }
 2931                         } else {
 2932                                 switch (av->assoc_value) {
 2933                                 case SCTP_CC_RFC2581:
 2934                                 case SCTP_CC_HSTCP:
 2935                                 case SCTP_CC_HTCP:
 2936                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 2937                                         break;
 2938                                 default:
 2939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2940                                         error = EINVAL;
 2941                                         break;
 2942                                 };
 2943                         }
 2944                 }
 2945                 break;
 2946         case SCTP_CLR_STAT_LOG:
 2947                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 2948                 error = EOPNOTSUPP;
 2949                 break;
 2950         case SCTP_CONTEXT:
 2951                 {
 2952                         struct sctp_assoc_value *av;
 2953 
 2954                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 2955                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2956 
 2957                         if (stcb) {
 2958                                 stcb->asoc.context = av->assoc_value;
 2959                                 SCTP_TCB_UNLOCK(stcb);
 2960                         } else {
 2961                                 SCTP_INP_WLOCK(inp);
 2962                                 inp->sctp_context = av->assoc_value;
 2963                                 SCTP_INP_WUNLOCK(inp);
 2964                         }
 2965                 }
 2966                 break;
 2967         case SCTP_VRF_ID:
 2968                 {
 2969                         uint32_t *default_vrfid;
 2970 
 2971                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 2972                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 2973                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2974                                 error = EINVAL;
 2975                                 break;
 2976                         }
 2977                         inp->def_vrf_id = *default_vrfid;
 2978                         break;
 2979                 }
 2980         case SCTP_DEL_VRF_ID:
 2981                 {
 2982                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 2983                         error = EOPNOTSUPP;
 2984                         break;
 2985                 }
 2986         case SCTP_ADD_VRF_ID:
 2987                 {
 2988                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 2989                         error = EOPNOTSUPP;
 2990                         break;
 2991                 }
 2992         case SCTP_DELAYED_SACK:
 2993                 {
 2994                         struct sctp_sack_info *sack;
 2995 
 2996                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 2997                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 2998                         if (sack->sack_delay) {
 2999                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 3000                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 3001                         }
 3002                         if (stcb) {
 3003                                 if (sack->sack_delay) {
 3004                                         if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 3005                                                 sack->sack_delay = TICKS_TO_MSEC(1);
 3006                                         }
 3007                                         stcb->asoc.delayed_ack = sack->sack_delay;
 3008                                 }
 3009                                 if (sack->sack_freq) {
 3010                                         stcb->asoc.sack_freq = sack->sack_freq;
 3011                                 }
 3012                                 SCTP_TCB_UNLOCK(stcb);
 3013                         } else {
 3014                                 SCTP_INP_WLOCK(inp);
 3015                                 if (sack->sack_delay) {
 3016                                         if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 3017                                                 sack->sack_delay = TICKS_TO_MSEC(1);
 3018                                         }
 3019                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 3020                                 }
 3021                                 if (sack->sack_freq) {
 3022                                         inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 3023                                 }
 3024                                 SCTP_INP_WUNLOCK(inp);
 3025                         }
 3026                         break;
 3027                 }
 3028         case SCTP_AUTH_CHUNK:
 3029                 {
 3030                         struct sctp_authchunk *sauth;
 3031 
 3032                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 3033 
 3034                         SCTP_INP_WLOCK(inp);
 3035                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 3036                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3037                                 error = EINVAL;
 3038                         }
 3039                         SCTP_INP_WUNLOCK(inp);
 3040                         break;
 3041                 }
 3042         case SCTP_AUTH_KEY:
 3043                 {
 3044                         struct sctp_authkey *sca;
 3045                         struct sctp_keyhead *shared_keys;
 3046                         sctp_sharedkey_t *shared_key;
 3047                         sctp_key_t *key = NULL;
 3048                         size_t size;
 3049 
 3050                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 3051                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 3052                         size = optsize - sizeof(*sca);
 3053 
 3054                         if (stcb) {
 3055                                 /* set it on the assoc */
 3056                                 shared_keys = &stcb->asoc.shared_keys;
 3057                                 /* clear the cached keys for this key id */
 3058                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 3059                                 /*
 3060                                  * create the new shared key and
 3061                                  * insert/replace it
 3062                                  */
 3063                                 if (size > 0) {
 3064                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3065                                         if (key == NULL) {
 3066                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3067                                                 error = ENOMEM;
 3068                                                 SCTP_TCB_UNLOCK(stcb);
 3069                                                 break;
 3070                                         }
 3071                                 }
 3072                                 shared_key = sctp_alloc_sharedkey();
 3073                                 if (shared_key == NULL) {
 3074                                         sctp_free_key(key);
 3075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3076                                         error = ENOMEM;
 3077                                         SCTP_TCB_UNLOCK(stcb);
 3078                                         break;
 3079                                 }
 3080                                 shared_key->key = key;
 3081                                 shared_key->keyid = sca->sca_keynumber;
 3082                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3083                                 SCTP_TCB_UNLOCK(stcb);
 3084                         } else {
 3085                                 /* set it on the endpoint */
 3086                                 SCTP_INP_WLOCK(inp);
 3087                                 shared_keys = &inp->sctp_ep.shared_keys;
 3088                                 /*
 3089                                  * clear the cached keys on all assocs for
 3090                                  * this key id
 3091                                  */
 3092                                 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 3093                                 /*
 3094                                  * create the new shared key and
 3095                                  * insert/replace it
 3096                                  */
 3097                                 if (size > 0) {
 3098                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3099                                         if (key == NULL) {
 3100                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3101                                                 error = ENOMEM;
 3102                                                 SCTP_INP_WUNLOCK(inp);
 3103                                                 break;
 3104                                         }
 3105                                 }
 3106                                 shared_key = sctp_alloc_sharedkey();
 3107                                 if (shared_key == NULL) {
 3108                                         sctp_free_key(key);
 3109                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3110                                         error = ENOMEM;
 3111                                         SCTP_INP_WUNLOCK(inp);
 3112                                         break;
 3113                                 }
 3114                                 shared_key->key = key;
 3115                                 shared_key->keyid = sca->sca_keynumber;
 3116                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3117                                 SCTP_INP_WUNLOCK(inp);
 3118                         }
 3119                         break;
 3120                 }
 3121         case SCTP_HMAC_IDENT:
 3122                 {
 3123                         struct sctp_hmacalgo *shmac;
 3124                         sctp_hmaclist_t *hmaclist;
 3125                         uint16_t hmacid;
 3126                         uint32_t i;
 3127 
 3128                         size_t found;
 3129 
 3130                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 3131                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
 3132                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3133                                 error = EINVAL;
 3134                                 break;
 3135                         }
 3136                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
 3137                         if (hmaclist == NULL) {
 3138                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3139                                 error = ENOMEM;
 3140                                 break;
 3141                         }
 3142                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 3143                                 hmacid = shmac->shmac_idents[i];
 3144                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 3145                                          /* invalid HMACs were found */ ;
 3146                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3147                                         error = EINVAL;
 3148                                         sctp_free_hmaclist(hmaclist);
 3149                                         goto sctp_set_hmac_done;
 3150                                 }
 3151                         }
 3152                         found = 0;
 3153                         for (i = 0; i < hmaclist->num_algo; i++) {
 3154                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 3155                                         /* already in list */
 3156                                         found = 1;
 3157                                 }
 3158                         }
 3159                         if (!found) {
 3160                                 sctp_free_hmaclist(hmaclist);
 3161                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3162                                 error = EINVAL;
 3163                                 break;
 3164                         }
 3165                         /* set it on the endpoint */
 3166                         SCTP_INP_WLOCK(inp);
 3167                         if (inp->sctp_ep.local_hmacs)
 3168                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 3169                         inp->sctp_ep.local_hmacs = hmaclist;
 3170                         SCTP_INP_WUNLOCK(inp);
 3171         sctp_set_hmac_done:
 3172                         break;
 3173                 }
 3174         case SCTP_AUTH_ACTIVE_KEY:
 3175                 {
 3176                         struct sctp_authkeyid *scact;
 3177 
 3178                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid,
 3179                             optsize);
 3180                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 3181 
 3182                         /* set the active key on the right place */
 3183                         if (stcb) {
 3184                                 /* set the active key on the assoc */
 3185                                 if (sctp_auth_setactivekey(stcb,
 3186                                     scact->scact_keynumber)) {
 3187                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3188                                             SCTP_FROM_SCTP_USRREQ,
 3189                                             EINVAL);
 3190                                         error = EINVAL;
 3191                                 }
 3192                                 SCTP_TCB_UNLOCK(stcb);
 3193                         } else {
 3194                                 /* set the active key on the endpoint */
 3195                                 SCTP_INP_WLOCK(inp);
 3196                                 if (sctp_auth_setactivekey_ep(inp,
 3197                                     scact->scact_keynumber)) {
 3198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3199                                             SCTP_FROM_SCTP_USRREQ,
 3200                                             EINVAL);
 3201                                         error = EINVAL;
 3202                                 }
 3203                                 SCTP_INP_WUNLOCK(inp);
 3204                         }
 3205                         break;
 3206                 }
 3207         case SCTP_AUTH_DELETE_KEY:
 3208                 {
 3209                         struct sctp_authkeyid *scdel;
 3210 
 3211                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid,
 3212                             optsize);
 3213                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 3214 
 3215                         /* delete the key from the right place */
 3216                         if (stcb) {
 3217                                 if (sctp_delete_sharedkey(stcb,
 3218                                     scdel->scact_keynumber)) {
 3219                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3220                                             SCTP_FROM_SCTP_USRREQ,
 3221                                             EINVAL);
 3222                                         error = EINVAL;
 3223                                 }
 3224                                 SCTP_TCB_UNLOCK(stcb);
 3225                         } else {
 3226                                 SCTP_INP_WLOCK(inp);
 3227                                 if (sctp_delete_sharedkey_ep(inp,
 3228                                     scdel->scact_keynumber)) {
 3229                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3230                                             SCTP_FROM_SCTP_USRREQ,
 3231                                             EINVAL);
 3232                                         error = EINVAL;
 3233                                 }
 3234                                 SCTP_INP_WUNLOCK(inp);
 3235                         }
 3236                         break;
 3237                 }
 3238         case SCTP_AUTH_DEACTIVATE_KEY:
 3239                 {
 3240                         struct sctp_authkeyid *keyid;
 3241 
 3242                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid,
 3243                             optsize);
 3244                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 3245 
 3246                         /* deactivate the key from the right place */
 3247                         if (stcb) {
 3248                                 if (sctp_deact_sharedkey(stcb,
 3249                                     keyid->scact_keynumber)) {
 3250                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3251                                             SCTP_FROM_SCTP_USRREQ,
 3252                                             EINVAL);
 3253                                         error = EINVAL;
 3254                                 }
 3255                                 SCTP_TCB_UNLOCK(stcb);
 3256                         } else {
 3257                                 SCTP_INP_WLOCK(inp);
 3258                                 if (sctp_deact_sharedkey_ep(inp,
 3259                                     keyid->scact_keynumber)) {
 3260                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 3261                                             SCTP_FROM_SCTP_USRREQ,
 3262                                             EINVAL);
 3263                                         error = EINVAL;
 3264                                 }
 3265                                 SCTP_INP_WUNLOCK(inp);
 3266                         }
 3267                         break;
 3268                 }
 3269 
 3270         case SCTP_RESET_STREAMS:
 3271                 {
 3272                         struct sctp_stream_reset *strrst;
 3273                         uint8_t send_in = 0, send_tsn = 0, send_out = 0,
 3274                                 addstream = 0;
 3275                         uint16_t addstrmcnt = 0;
 3276                         int i;
 3277 
 3278                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
 3279                         SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
 3280 
 3281                         if (stcb == NULL) {
 3282                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 3283                                 error = ENOENT;
 3284                                 break;
 3285                         }
 3286                         if (stcb->asoc.peer_supports_strreset == 0) {
 3287                                 /*
 3288                                  * Peer does not support it, we return
 3289                                  * protocol not supported since this is true
 3290                                  * for this feature and this peer, not the
 3291                                  * socket request in general.
 3292                                  */
 3293                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
 3294                                 error = EPROTONOSUPPORT;
 3295                                 SCTP_TCB_UNLOCK(stcb);
 3296                                 break;
 3297                         }
 3298                         if (stcb->asoc.stream_reset_outstanding) {
 3299                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 3300                                 error = EALREADY;
 3301                                 SCTP_TCB_UNLOCK(stcb);
 3302                                 break;
 3303                         }
 3304                         if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
 3305                                 send_in = 1;
 3306                         } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
 3307                                 send_out = 1;
 3308                         } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
 3309                                 send_in = 1;
 3310                                 send_out = 1;
 3311                         } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
 3312                                 send_tsn = 1;
 3313                         } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) {
 3314                                 if (send_tsn ||
 3315                                     send_in ||
 3316                                     send_out) {
 3317                                         /* We can't do that and add streams */
 3318                                         error = EINVAL;
 3319                                         goto skip_stuff;
 3320                                 }
 3321                                 if (stcb->asoc.stream_reset_outstanding) {
 3322                                         error = EBUSY;
 3323                                         goto skip_stuff;
 3324                                 }
 3325                                 addstream = 1;
 3326                                 /* We allocate here */
 3327                                 addstrmcnt = strrst->strrst_num_streams;
 3328                                 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) {
 3329                                         /* You can't have more than 64k */
 3330                                         error = EINVAL;
 3331                                         goto skip_stuff;
 3332                                 }
 3333                                 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) {
 3334                                         /* Need to allocate more */
 3335                                         struct sctp_stream_out *oldstream;
 3336                                         struct sctp_stream_queue_pending *sp;
 3337                                         int removed;
 3338 
 3339                                         oldstream = stcb->asoc.strmout;
 3340                                         /* get some more */
 3341                                         SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *,
 3342                                             ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)),
 3343                                             SCTP_M_STRMO);
 3344                                         if (stcb->asoc.strmout == NULL) {
 3345                                                 stcb->asoc.strmout = oldstream;
 3346                                                 error = ENOMEM;
 3347                                                 goto skip_stuff;
 3348                                         }
 3349                                         /*
 3350                                          * Ok now we proceed with copying
 3351                                          * the old out stuff and
 3352                                          * initializing the new stuff.
 3353                                          */
 3354                                         SCTP_TCB_SEND_LOCK(stcb);
 3355                                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
 3356                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
 3357                                                 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent;
 3358                                                 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete;
 3359                                                 stcb->asoc.strmout[i].stream_no = i;
 3360                                                 if (oldstream[i].next_spoke.tqe_next) {
 3361                                                         sctp_remove_from_wheel(stcb, &stcb->asoc, &oldstream[i], 1);
 3362                                                         stcb->asoc.strmout[i].next_spoke.tqe_next = NULL;
 3363                                                         stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL;
 3364                                                         removed = 1;
 3365                                                 } else {
 3366                                                         /* not on out wheel */
 3367                                                         stcb->asoc.strmout[i].next_spoke.tqe_next = NULL;
 3368                                                         stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL;
 3369                                                         removed = 0;
 3370                                                 }
 3371                                                 /*
 3372                                                  * now anything on those
 3373                                                  * queues?
 3374                                                  */
 3375                                                 while (TAILQ_EMPTY(&oldstream[i].outqueue) == 0) {
 3376                                                         sp = TAILQ_FIRST(&oldstream[i].outqueue);
 3377                                                         TAILQ_REMOVE(&oldstream[i].outqueue, sp, next);
 3378                                                         TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next);
 3379                                                 }
 3380                                                 /* Did we disrupt the wheel? */
 3381                                                 if (removed) {
 3382                                                         sctp_insert_on_wheel(stcb,
 3383                                                             &stcb->asoc,
 3384                                                             &stcb->asoc.strmout[i],
 3385                                                             1);
 3386                                                 }
 3387                                                 /*
 3388                                                  * Now move assoc pointers
 3389                                                  * too
 3390                                                  */
 3391                                                 if (stcb->asoc.last_out_stream == &oldstream[i]) {
 3392                                                         stcb->asoc.last_out_stream = &stcb->asoc.strmout[i];
 3393                                                 }
 3394                                                 if (stcb->asoc.locked_on_sending == &oldstream[i]) {
 3395                                                         stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i];
 3396                                                 }
 3397                                         }
 3398                                         /* now the new streams */
 3399                                         for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) {
 3400                                                 stcb->asoc.strmout[i].next_sequence_sent = 0x0;
 3401                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
 3402                                                 stcb->asoc.strmout[i].stream_no = i;
 3403                                                 stcb->asoc.strmout[i].last_msg_incomplete = 0;
 3404                                                 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL;
 3405                                                 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL;
 3406                                         }
 3407                                         stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt;
 3408                                         SCTP_FREE(oldstream, SCTP_M_STRMO);
 3409                                 }
 3410                                 SCTP_TCB_SEND_UNLOCK(stcb);
 3411                                 goto skip_stuff;
 3412                         } else {
 3413                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3414                                 error = EINVAL;
 3415                                 SCTP_TCB_UNLOCK(stcb);
 3416                                 break;
 3417                         }
 3418                         for (i = 0; i < strrst->strrst_num_streams; i++) {
 3419                                 if ((send_in) &&
 3420 
 3421                                     (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
 3422                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3423                                         error = EINVAL;
 3424                                         goto get_out;
 3425                                 }
 3426                                 if ((send_out) &&
 3427                                     (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
 3428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3429                                         error = EINVAL;
 3430                                         goto get_out;
 3431                                 }
 3432                         }
 3433         skip_stuff:
 3434                         if (error) {
 3435                 get_out:
 3436                                 SCTP_TCB_UNLOCK(stcb);
 3437                                 break;
 3438                         }
 3439                         error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
 3440                             strrst->strrst_list,
 3441                             send_out, (stcb->asoc.str_reset_seq_in - 3),
 3442                             send_in, send_tsn, addstream, addstrmcnt);
 3443 
 3444                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 3445                         SCTP_TCB_UNLOCK(stcb);
 3446                 }
 3447                 break;
 3448 
 3449         case SCTP_CONNECT_X:
 3450                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 3451                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3452                         error = EINVAL;
 3453                         break;
 3454                 }
 3455                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 3456                 break;
 3457 
 3458         case SCTP_CONNECT_X_DELAYED:
 3459                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 3460                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3461                         error = EINVAL;
 3462                         break;
 3463                 }
 3464                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 3465                 break;
 3466 
 3467         case SCTP_CONNECT_X_COMPLETE:
 3468                 {
 3469                         struct sockaddr *sa;
 3470                         struct sctp_nets *net;
 3471 
 3472                         /* FIXME MT: check correct? */
 3473                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 3474 
 3475                         /* find tcb */
 3476                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 3477                                 SCTP_INP_RLOCK(inp);
 3478                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 3479                                 if (stcb) {
 3480                                         SCTP_TCB_LOCK(stcb);
 3481                                         net = sctp_findnet(stcb, sa);
 3482                                 }
 3483                                 SCTP_INP_RUNLOCK(inp);
 3484                         } else {
 3485                                 /*
 3486                                  * We increment here since
 3487                                  * sctp_findassociation_ep_addr() wil do a
 3488                                  * decrement if it finds the stcb as long as
 3489                                  * the locked tcb (last argument) is NOT a
 3490                                  * TCB.. aka NULL.
 3491                                  */
 3492                                 SCTP_INP_INCR_REF(inp);
 3493                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
 3494                                 if (stcb == NULL) {
 3495                                         SCTP_INP_DECR_REF(inp);
 3496                                 }
 3497                         }
 3498 
 3499                         if (stcb == NULL) {
 3500                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 3501                                 error = ENOENT;
 3502                                 break;
 3503                         }
 3504                         if (stcb->asoc.delayed_connection == 1) {
 3505                                 stcb->asoc.delayed_connection = 0;
 3506                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 3507                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 3508                                     stcb->asoc.primary_destination,
 3509                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 3510                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 3511                         } else {
 3512                                 /*
 3513                                  * already expired or did not use delayed
 3514                                  * connectx
 3515                                  */
 3516                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 3517                                 error = EALREADY;
 3518                         }
 3519                         SCTP_TCB_UNLOCK(stcb);
 3520                 }
 3521                 break;
 3522         case SCTP_MAX_BURST:
 3523                 {
 3524                         uint8_t *burst;
 3525 
 3526                         SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
 3527 
 3528                         SCTP_INP_WLOCK(inp);
 3529                         if (*burst) {
 3530                                 inp->sctp_ep.max_burst = *burst;
 3531                         }
 3532                         SCTP_INP_WUNLOCK(inp);
 3533                 }
 3534                 break;
 3535         case SCTP_MAXSEG:
 3536                 {
 3537                         struct sctp_assoc_value *av;
 3538                         int ovh;
 3539 
 3540                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3541                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3542 
 3543                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3544                                 ovh = SCTP_MED_OVERHEAD;
 3545                         } else {
 3546                                 ovh = SCTP_MED_V4_OVERHEAD;
 3547                         }
 3548                         if (stcb) {
 3549                                 if (av->assoc_value) {
 3550                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 3551                                 } else {
 3552                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 3553                                 }
 3554                                 SCTP_TCB_UNLOCK(stcb);
 3555                         } else {
 3556                                 SCTP_INP_WLOCK(inp);
 3557                                 /*
 3558                                  * FIXME MT: I think this is not in tune
 3559                                  * with the API ID
 3560                                  */
 3561                                 if (av->assoc_value) {
 3562                                         inp->sctp_frag_point = (av->assoc_value + ovh);
 3563                                 } else {
 3564                                         inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 3565                                 }
 3566                                 SCTP_INP_WUNLOCK(inp);
 3567                         }
 3568                 }
 3569                 break;
 3570         case SCTP_EVENTS:
 3571                 {
 3572                         struct sctp_event_subscribe *events;
 3573 
 3574                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 3575 
 3576                         SCTP_INP_WLOCK(inp);
 3577                         if (events->sctp_data_io_event) {
 3578                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 3579                         } else {
 3580                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 3581                         }
 3582 
 3583                         if (events->sctp_association_event) {
 3584                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 3585                         } else {
 3586                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 3587                         }
 3588 
 3589                         if (events->sctp_address_event) {
 3590                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 3591                         } else {
 3592                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 3593                         }
 3594 
 3595                         if (events->sctp_send_failure_event) {
 3596                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 3597                         } else {
 3598                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 3599                         }
 3600 
 3601                         if (events->sctp_peer_error_event) {
 3602                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 3603                         } else {
 3604                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 3605                         }
 3606 
 3607                         if (events->sctp_shutdown_event) {
 3608                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 3609                         } else {
 3610                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 3611                         }
 3612 
 3613                         if (events->sctp_partial_delivery_event) {
 3614                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 3615                         } else {
 3616                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 3617                         }
 3618 
 3619                         if (events->sctp_adaptation_layer_event) {
 3620                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 3621                         } else {
 3622                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 3623                         }
 3624 
 3625                         if (events->sctp_authentication_event) {
 3626                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 3627                         } else {
 3628                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 3629                         }
 3630 
 3631                         if (events->sctp_sender_dry_event) {
 3632                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 3633                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3634                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3635                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 3636                                         if (stcb) {
 3637                                                 SCTP_TCB_LOCK(stcb);
 3638                                         }
 3639                                         if (stcb &&
 3640                                             TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 3641                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 3642                                             (stcb->asoc.stream_queue_cnt == 0)) {
 3643                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 3644                                         }
 3645                                         if (stcb) {
 3646                                                 SCTP_TCB_UNLOCK(stcb);
 3647                                         }
 3648                                 }
 3649                         } else {
 3650                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 3651                         }
 3652 
 3653                         if (events->sctp_stream_reset_events) {
 3654                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 3655                         } else {
 3656                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 3657                         }
 3658                         SCTP_INP_WUNLOCK(inp);
 3659                 }
 3660                 break;
 3661 
 3662         case SCTP_ADAPTATION_LAYER:
 3663                 {
 3664                         struct sctp_setadaptation *adap_bits;
 3665 
 3666                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 3667                         SCTP_INP_WLOCK(inp);
 3668                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 3669                         SCTP_INP_WUNLOCK(inp);
 3670                 }
 3671                 break;
 3672 #ifdef SCTP_DEBUG
 3673         case SCTP_SET_INITIAL_DBG_SEQ:
 3674                 {
 3675                         uint32_t *vvv;
 3676 
 3677                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 3678                         SCTP_INP_WLOCK(inp);
 3679                         inp->sctp_ep.initial_sequence_debug = *vvv;
 3680                         SCTP_INP_WUNLOCK(inp);
 3681                 }
 3682                 break;
 3683 #endif
 3684         case SCTP_DEFAULT_SEND_PARAM:
 3685                 {
 3686                         struct sctp_sndrcvinfo *s_info;
 3687 
 3688                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 3689                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 3690 
 3691                         if (stcb) {
 3692                                 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) {
 3693                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 3694                                 } else {
 3695                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3696                                         error = EINVAL;
 3697                                 }
 3698                                 SCTP_TCB_UNLOCK(stcb);
 3699                         } else {
 3700                                 SCTP_INP_WLOCK(inp);
 3701                                 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 3702                                 SCTP_INP_WUNLOCK(inp);
 3703                         }
 3704                 }
 3705                 break;
 3706         case SCTP_PEER_ADDR_PARAMS:
 3707                 /* Applys to the specific association */
 3708                 {
 3709                         struct sctp_paddrparams *paddrp;
 3710                         struct sctp_nets *net;
 3711 
 3712                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 3713                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 3714                         net = NULL;
 3715                         if (stcb) {
 3716                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 3717                         } else {
 3718                                 /*
 3719                                  * We increment here since
 3720                                  * sctp_findassociation_ep_addr() wil do a
 3721                                  * decrement if it finds the stcb as long as
 3722                                  * the locked tcb (last argument) is NOT a
 3723                                  * TCB.. aka NULL.
 3724                                  */
 3725                                 SCTP_INP_INCR_REF(inp);
 3726                                 stcb = sctp_findassociation_ep_addr(&inp,
 3727                                     (struct sockaddr *)&paddrp->spp_address,
 3728                                     &net, NULL, NULL);
 3729                                 if (stcb == NULL) {
 3730                                         SCTP_INP_DECR_REF(inp);
 3731                                 }
 3732                         }
 3733                         if (stcb && (net == NULL)) {
 3734                                 struct sockaddr *sa;
 3735 
 3736                                 sa = (struct sockaddr *)&paddrp->spp_address;
 3737                                 if (sa->sa_family == AF_INET) {
 3738                                         struct sockaddr_in *sin;
 3739 
 3740                                         sin = (struct sockaddr_in *)sa;
 3741                                         if (sin->sin_addr.s_addr) {
 3742                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3743                                                 SCTP_TCB_UNLOCK(stcb);
 3744                                                 error = EINVAL;
 3745                                                 break;
 3746                                         }
 3747                                 } else if (sa->sa_family == AF_INET6) {
 3748                                         struct sockaddr_in6 *sin6;
 3749 
 3750                                         sin6 = (struct sockaddr_in6 *)sa;
 3751                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3752                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3753                                                 SCTP_TCB_UNLOCK(stcb);
 3754                                                 error = EINVAL;
 3755                                                 break;
 3756                                         }
 3757                                 } else {
 3758                                         error = EAFNOSUPPORT;
 3759                                         SCTP_TCB_UNLOCK(stcb);
 3760                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3761                                         break;
 3762                                 }
 3763                         }
 3764                         /* sanity checks */
 3765                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 3766                                 if (stcb)
 3767                                         SCTP_TCB_UNLOCK(stcb);
 3768                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3769                                 return (EINVAL);
 3770                         }
 3771                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 3772                                 if (stcb)
 3773                                         SCTP_TCB_UNLOCK(stcb);
 3774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3775                                 return (EINVAL);
 3776                         }
 3777                         if (stcb) {
 3778                                 /************************TCB SPECIFIC SET ******************/
 3779                                 /*
 3780                                  * do we change the timer for HB, we run
 3781                                  * only one?
 3782                                  */
 3783                                 int ovh = 0;
 3784 
 3785                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3786                                         ovh = SCTP_MED_OVERHEAD;
 3787                                 } else {
 3788                                         ovh = SCTP_MED_V4_OVERHEAD;
 3789                                 }
 3790 
 3791                                 if (paddrp->spp_hbinterval)
 3792                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 3793                                 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 3794                                         stcb->asoc.heart_beat_delay = 0;
 3795 
 3796                                 /* network sets ? */
 3797                                 if (net) {
 3798                                         /************************NET SPECIFIC SET ******************/
 3799                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 3800                                                 /* on demand HB */
 3801                                                 if (sctp_send_hb(stcb, 1, net) < 0) {
 3802                                                         /* asoc destroyed */
 3803                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3804                                                         error = EINVAL;
 3805                                                         break;
 3806                                                 }
 3807                                         }
 3808                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 3809                                                 net->dest_state |= SCTP_ADDR_NOHB;
 3810                                         }
 3811                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 3812                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 3813                                         }
 3814                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 3815                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 3816                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 3817                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 3818                                                 }
 3819                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
 3820                                                         net->mtu = paddrp->spp_pathmtu + ovh;
 3821                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 3822 #ifdef SCTP_PRINT_FOR_B_AND_M
 3823                                                                 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
 3824                                                                     net->mtu);
 3825 #endif
 3826                                                                 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
 3827                                                         }
 3828                                                 }
 3829                                         }
 3830                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 3831                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 3832                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 3833                                                 }
 3834                                         }
 3835                                         if (paddrp->spp_pathmaxrxt)
 3836                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 3837 #ifdef INET
 3838                                         if (paddrp->spp_flags & SPP_IPV4_TOS) {
 3839                                                 if (net->ro._l_addr.sin.sin_family == AF_INET) {
 3840                                                         net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc;
 3841                                                 }
 3842                                         }
 3843 #endif
 3844 #ifdef INET6
 3845                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 3846                                                 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
 3847                                                         net->tos_flowlabel = paddrp->spp_ipv6_flowlabel;
 3848                                                 }
 3849                                         }
 3850 #endif
 3851                                 } else {
 3852                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 3853                                         if (paddrp->spp_pathmaxrxt)
 3854                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 3855 
 3856                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 3857                                                 /* Turn back on the timer */
 3858                                                 stcb->asoc.hb_is_disabled = 0;
 3859                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 3860                                         }
 3861                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 3862                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3863                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 3864                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 3865                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 3866                                                         }
 3867                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
 3868                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
 3869                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 3870 #ifdef SCTP_PRINT_FOR_B_AND_M
 3871                                                                         SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
 3872                                                                             net->mtu);
 3873 #endif
 3874                                                                         sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
 3875                                                                 }
 3876                                                         }
 3877                                                 }
 3878                                         }
 3879                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 3880                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3881                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 3882                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 3883                                                         }
 3884                                                 }
 3885                                         }
 3886                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 3887                                                 int cnt_of_unconf = 0;
 3888                                                 struct sctp_nets *lnet;
 3889 
 3890                                                 stcb->asoc.hb_is_disabled = 1;
 3891                                                 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {
 3892                                                         if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) {
 3893                                                                 cnt_of_unconf++;
 3894                                                         }
 3895                                                 }
 3896                                                 /*
 3897                                                  * stop the timer ONLY if we
 3898                                                  * have no unconfirmed
 3899                                                  * addresses
 3900                                                  */
 3901                                                 if (cnt_of_unconf == 0) {
 3902                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3903                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 3904                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
 3905                                                         }
 3906                                                 }
 3907                                         }
 3908                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 3909                                                 /* start up the timer. */
 3910                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3911                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 3912                                                 }
 3913                                         }
 3914 #ifdef INET
 3915                                         if (paddrp->spp_flags & SPP_IPV4_TOS)
 3916                                                 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc;
 3917 #endif
 3918 #ifdef INET6
 3919                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL)
 3920                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel;
 3921 #endif
 3922 
 3923                                 }
 3924                                 SCTP_TCB_UNLOCK(stcb);
 3925                         } else {
 3926                                 /************************NO TCB, SET TO default stuff ******************/
 3927                                 SCTP_INP_WLOCK(inp);
 3928                                 /*
 3929                                  * For the TOS/FLOWLABEL stuff you set it
 3930                                  * with the options on the socket
 3931                                  */
 3932                                 if (paddrp->spp_pathmaxrxt) {
 3933                                         inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
 3934                                 }
 3935                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 3936                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 3937                                 else if (paddrp->spp_hbinterval) {
 3938                                         if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 3939                                                 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
 3940                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 3941                                 }
 3942                                 if (paddrp->spp_flags & SPP_HB_ENABLE) {
 3943                                         sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 3944 
 3945                                 } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
 3946                                         sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 3947                                 }
 3948                                 SCTP_INP_WUNLOCK(inp);
 3949                         }
 3950                 }
 3951                 break;
 3952         case SCTP_RTOINFO:
 3953                 {
 3954                         struct sctp_rtoinfo *srto;
 3955                         uint32_t new_init, new_min, new_max;
 3956 
 3957                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
 3958                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 3959 
 3960                         if (stcb) {
 3961                                 if (srto->srto_initial)
 3962                                         new_init = srto->srto_initial;
 3963                                 else
 3964                                         new_init = stcb->asoc.initial_rto;
 3965                                 if (srto->srto_max)
 3966                                         new_max = srto->srto_max;
 3967                                 else
 3968                                         new_max = stcb->asoc.maxrto;
 3969                                 if (srto->srto_min)
 3970                                         new_min = srto->srto_min;
 3971                                 else
 3972                                         new_min = stcb->asoc.minrto;
 3973                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 3974                                         stcb->asoc.initial_rto = new_init;
 3975                                         stcb->asoc.maxrto = new_max;
 3976                                         stcb->asoc.minrto = new_min;
 3977                                 } else {
 3978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3979                                         error = EINVAL;
 3980                                 }
 3981                                 SCTP_TCB_UNLOCK(stcb);
 3982                         } else {
 3983                                 SCTP_INP_WLOCK(inp);
 3984                                 if (srto->srto_initial)
 3985                                         new_init = srto->srto_initial;
 3986                                 else
 3987                                         new_init = inp->sctp_ep.initial_rto;
 3988                                 if (srto->srto_max)
 3989                                         new_max = srto->srto_max;
 3990                                 else
 3991                                         new_max = inp->sctp_ep.sctp_maxrto;
 3992                                 if (srto->srto_min)
 3993                                         new_min = srto->srto_min;
 3994                                 else
 3995                                         new_min = inp->sctp_ep.sctp_minrto;
 3996                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 3997                                         inp->sctp_ep.initial_rto = new_init;
 3998                                         inp->sctp_ep.sctp_maxrto = new_max;
 3999                                         inp->sctp_ep.sctp_minrto = new_min;
 4000                                 } else {
 4001                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4002                                         error = EINVAL;
 4003                                 }
 4004                                 SCTP_INP_WUNLOCK(inp);
 4005                         }
 4006                 }
 4007                 break;
 4008         case SCTP_ASSOCINFO:
 4009                 {
 4010                         struct sctp_assocparams *sasoc;
 4011 
 4012                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
 4013                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 4014                         if (sasoc->sasoc_cookie_life) {
 4015                                 /* boundary check the cookie life */
 4016                                 if (sasoc->sasoc_cookie_life < 1000)
 4017                                         sasoc->sasoc_cookie_life = 1000;
 4018                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 4019                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 4020                                 }
 4021                         }
 4022                         if (stcb) {
 4023                                 if (sasoc->sasoc_asocmaxrxt)
 4024                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 4025                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 4026                                 sasoc->sasoc_peer_rwnd = 0;
 4027                                 sasoc->sasoc_local_rwnd = 0;
 4028                                 if (sasoc->sasoc_cookie_life) {
 4029                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 4030                                 }
 4031                                 SCTP_TCB_UNLOCK(stcb);
 4032                         } else {
 4033                                 SCTP_INP_WLOCK(inp);
 4034                                 if (sasoc->sasoc_asocmaxrxt)
 4035                                         inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 4036                                 sasoc->sasoc_number_peer_destinations = 0;
 4037                                 sasoc->sasoc_peer_rwnd = 0;
 4038                                 sasoc->sasoc_local_rwnd = 0;
 4039                                 if (sasoc->sasoc_cookie_life) {
 4040                                         inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 4041                                 }
 4042                                 SCTP_INP_WUNLOCK(inp);
 4043                         }
 4044                 }
 4045                 break;
 4046         case SCTP_INITMSG:
 4047                 {
 4048                         struct sctp_initmsg *sinit;
 4049 
 4050                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
 4051                         SCTP_INP_WLOCK(inp);
 4052                         if (sinit->sinit_num_ostreams)
 4053                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
 4054 
 4055                         if (sinit->sinit_max_instreams)
 4056                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
 4057 
 4058                         if (sinit->sinit_max_attempts)
 4059                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
 4060 
 4061                         if (sinit->sinit_max_init_timeo)
 4062                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
 4063                         SCTP_INP_WUNLOCK(inp);
 4064                 }
 4065                 break;
 4066         case SCTP_PRIMARY_ADDR:
 4067                 {
 4068                         struct sctp_setprim *spa;
 4069                         struct sctp_nets *net, *lnet;
 4070 
 4071                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 4072                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 4073 
 4074                         net = NULL;
 4075                         if (stcb) {
 4076                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
 4077                         } else {
 4078                                 /*
 4079                                  * We increment here since
 4080                                  * sctp_findassociation_ep_addr() wil do a
 4081                                  * decrement if it finds the stcb as long as
 4082                                  * the locked tcb (last argument) is NOT a
 4083                                  * TCB.. aka NULL.
 4084                                  */
 4085                                 SCTP_INP_INCR_REF(inp);
 4086                                 stcb = sctp_findassociation_ep_addr(&inp,
 4087                                     (struct sockaddr *)&spa->ssp_addr,
 4088                                     &net, NULL, NULL);
 4089                                 if (stcb == NULL) {
 4090                                         SCTP_INP_DECR_REF(inp);
 4091                                 }
 4092                         }
 4093 
 4094                         if ((stcb) && (net)) {
 4095                                 if ((net != stcb->asoc.primary_destination) &&
 4096                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
 4097                                         /* Ok we need to set it */
 4098                                         lnet = stcb->asoc.primary_destination;
 4099                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
 4100                                                 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) {
 4101                                                         net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH;
 4102                                                 }
 4103                                                 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY;
 4104                                         }
 4105                                 }
 4106                         } else {
 4107                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4108                                 error = EINVAL;
 4109                         }
 4110                         if (stcb) {
 4111                                 SCTP_TCB_UNLOCK(stcb);
 4112                         }
 4113                 }
 4114                 break;
 4115         case SCTP_SET_DYNAMIC_PRIMARY:
 4116                 {
 4117                         union sctp_sockstore *ss;
 4118 
 4119                         error = priv_check(curthread,
 4120                             PRIV_NETINET_RESERVEDPORT);
 4121                         if (error)
 4122                                 break;
 4123 
 4124                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
 4125                         /* SUPER USER CHECK? */
 4126                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
 4127                 }
 4128                 break;
 4129         case SCTP_SET_PEER_PRIMARY_ADDR:
 4130                 {
 4131                         struct sctp_setpeerprim *sspp;
 4132 
 4133                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
 4134                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
 4135                         if (stcb != NULL) {
 4136                                 struct sctp_ifa *ifa;
 4137 
 4138                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
 4139                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
 4140                                 if (ifa == NULL) {
 4141                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4142                                         error = EINVAL;
 4143                                         goto out_of_it;
 4144                                 }
 4145                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 4146                                         /*
 4147                                          * Must validate the ifa found is in
 4148                                          * our ep
 4149                                          */
 4150                                         struct sctp_laddr *laddr;
 4151                                         int found = 0;
 4152 
 4153                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 4154                                                 if (laddr->ifa == NULL) {
 4155                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
 4156                                                             __FUNCTION__);
 4157                                                         continue;
 4158                                                 }
 4159                                                 if (laddr->ifa == ifa) {
 4160                                                         found = 1;
 4161                                                         break;
 4162                                                 }
 4163                                         }
 4164                                         if (!found) {
 4165                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4166                                                 error = EINVAL;
 4167                                                 goto out_of_it;
 4168                                         }
 4169                                 }
 4170                                 if (sctp_set_primary_ip_address_sa(stcb,
 4171                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
 4172                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4173                                         error = EINVAL;
 4174                                 }
 4175                 out_of_it:
 4176                                 SCTP_TCB_UNLOCK(stcb);
 4177                         } else {
 4178                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4179                                 error = EINVAL;
 4180                         }
 4181 
 4182                 }
 4183                 break;
 4184         case SCTP_BINDX_ADD_ADDR:
 4185                 {
 4186                         struct sctp_getaddresses *addrs;
 4187                         size_t sz;
 4188                         struct thread *td;
 4189 
 4190                         td = (struct thread *)p;
 4191                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 4192                             optsize);
 4193                         if (addrs->addr->sa_family == AF_INET) {
 4194                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
 4195                                 if (optsize < sz) {
 4196                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4197                                         error = EINVAL;
 4198                                         break;
 4199                                 }
 4200                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 4201                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4202                                         break;
 4203                                 }
 4204 #ifdef INET6
 4205                         } else if (addrs->addr->sa_family == AF_INET6) {
 4206                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
 4207                                 if (optsize < sz) {
 4208                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4209                                         error = EINVAL;
 4210                                         break;
 4211                                 }
 4212                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 4213                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 4214                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4215                                         break;
 4216                                 }
 4217 #endif
 4218                         } else {
 4219                                 error = EAFNOSUPPORT;
 4220                                 break;
 4221                         }
 4222                         sctp_bindx_add_address(so, inp, addrs->addr,
 4223                             addrs->sget_assoc_id, vrf_id,
 4224                             &error, p);
 4225                 }
 4226                 break;
 4227         case SCTP_BINDX_REM_ADDR:
 4228                 {
 4229                         struct sctp_getaddresses *addrs;
 4230                         size_t sz;
 4231                         struct thread *td;
 4232 
 4233                         td = (struct thread *)p;
 4234 
 4235                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 4236                         if (addrs->addr->sa_family == AF_INET) {
 4237                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
 4238                                 if (optsize < sz) {
 4239                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4240                                         error = EINVAL;
 4241                                         break;
 4242                                 }
 4243                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 4244                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4245                                         break;
 4246                                 }
 4247 #ifdef INET6
 4248                         } else if (addrs->addr->sa_family == AF_INET6) {
 4249                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
 4250                                 if (optsize < sz) {
 4251                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4252                                         error = EINVAL;
 4253                                         break;
 4254                                 }
 4255                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 4256                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 4257                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4258                                         break;
 4259                                 }
 4260 #endif
 4261                         } else {
 4262                                 error = EAFNOSUPPORT;
 4263                                 break;
 4264                         }
 4265                         sctp_bindx_delete_address(so, inp, addrs->addr,
 4266                             addrs->sget_assoc_id, vrf_id,
 4267                             &error);
 4268                 }
 4269                 break;
 4270         default:
 4271                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 4272                 error = ENOPROTOOPT;
 4273                 break;
 4274         }                       /* end switch (opt) */
 4275         return (error);
 4276 }
 4277 
 4278 int
 4279 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 4280 {
 4281         void *optval = NULL;
 4282         size_t optsize = 0;
 4283         struct sctp_inpcb *inp;
 4284         void *p;
 4285         int error = 0;
 4286 
 4287         inp = (struct sctp_inpcb *)so->so_pcb;
 4288         if (inp == 0) {
 4289                 /* I made the same as TCP since we are not setup? */
 4290                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4291                 return (ECONNRESET);
 4292         }
 4293         if (sopt->sopt_level != IPPROTO_SCTP) {
 4294                 /* wrong proto level... send back up to IP */
 4295 #ifdef INET6
 4296                 if (INP_CHECK_SOCKAF(so, AF_INET6))
 4297                         error = ip6_ctloutput(so, sopt);
 4298                 else
 4299 #endif                          /* INET6 */
 4300                         error = ip_ctloutput(so, sopt);
 4301                 return (error);
 4302         }
 4303         optsize = sopt->sopt_valsize;
 4304         if (optsize) {
 4305                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
 4306                 if (optval == NULL) {
 4307                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 4308                         return (ENOBUFS);
 4309                 }
 4310                 error = sooptcopyin(sopt, optval, optsize, optsize);
 4311                 if (error) {
 4312                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
 4313                         goto out;
 4314                 }
 4315         }
 4316         p = (void *)sopt->sopt_td;
 4317         if (sopt->sopt_dir == SOPT_SET) {
 4318                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 4319         } else if (sopt->sopt_dir == SOPT_GET) {
 4320                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 4321         } else {
 4322                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4323                 error = EINVAL;
 4324         }
 4325         if ((error == 0) && (optval != NULL)) {
 4326                 error = sooptcopyout(sopt, optval, optsize);
 4327                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 4328         } else if (optval != NULL) {
 4329                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 4330         }
 4331 out:
 4332         return (error);
 4333 }
 4334 
 4335 
 4336 static int
 4337 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 4338 {
 4339         int error = 0;
 4340         int create_lock_on = 0;
 4341         uint32_t vrf_id;
 4342         struct sctp_inpcb *inp;
 4343         struct sctp_tcb *stcb = NULL;
 4344 
 4345         inp = (struct sctp_inpcb *)so->so_pcb;
 4346         if (inp == 0) {
 4347                 /* I made the same as TCP since we are not setup? */
 4348                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4349                 return (ECONNRESET);
 4350         }
 4351         if (addr == NULL) {
 4352                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4353                 return EINVAL;
 4354         }
 4355 #ifdef INET6
 4356         if (addr->sa_family == AF_INET6) {
 4357                 struct sockaddr_in6 *sin6p;
 4358 
 4359                 if (addr->sa_len != sizeof(struct sockaddr_in6)) {
 4360                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4361                         return (EINVAL);
 4362                 }
 4363                 sin6p = (struct sockaddr_in6 *)addr;
 4364                 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
 4365                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4366                         return (error);
 4367                 }
 4368         } else
 4369 #endif
 4370         if (addr->sa_family == AF_INET) {
 4371                 struct sockaddr_in *sinp;
 4372 
 4373                 if (addr->sa_len != sizeof(struct sockaddr_in)) {
 4374                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4375                         return (EINVAL);
 4376                 }
 4377                 sinp = (struct sockaddr_in *)addr;
 4378                 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
 4379                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4380                         return (error);
 4381                 }
 4382         } else {
 4383                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 4384                 return (EAFNOSUPPORT);
 4385         }
 4386         SCTP_INP_INCR_REF(inp);
 4387         SCTP_ASOC_CREATE_LOCK(inp);
 4388         create_lock_on = 1;
 4389 
 4390 
 4391         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 4392             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 4393                 /* Should I really unlock ? */
 4394                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 4395                 error = EFAULT;
 4396                 goto out_now;
 4397         }
 4398 #ifdef INET6
 4399         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 4400             (addr->sa_family == AF_INET6)) {
 4401                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4402                 error = EINVAL;
 4403                 goto out_now;
 4404         }
 4405 #endif                          /* INET6 */
 4406         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 4407             SCTP_PCB_FLAGS_UNBOUND) {
 4408                 /* Bind a ephemeral port */
 4409                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 4410                 if (error) {
 4411                         goto out_now;
 4412                 }
 4413         }
 4414         /* Now do we connect? */
 4415         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 4416             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 4417                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4418                 error = EINVAL;
 4419                 goto out_now;
 4420         }
 4421         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 4422             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 4423                 /* We are already connected AND the TCP model */
 4424                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 4425                 error = EADDRINUSE;
 4426                 goto out_now;
 4427         }
 4428         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4429                 SCTP_INP_RLOCK(inp);
 4430                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4431                 SCTP_INP_RUNLOCK(inp);
 4432         } else {
 4433                 /*
 4434                  * We increment here since sctp_findassociation_ep_addr()
 4435                  * will do a decrement if it finds the stcb as long as the
 4436                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
 4437                  */
 4438                 SCTP_INP_INCR_REF(inp);
 4439                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
 4440                 if (stcb == NULL) {
 4441                         SCTP_INP_DECR_REF(inp);
 4442                 } else {
 4443                         SCTP_TCB_UNLOCK(stcb);
 4444                 }
 4445         }
 4446         if (stcb != NULL) {
 4447                 /* Already have or am bring up an association */
 4448                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4449                 error = EALREADY;
 4450                 goto out_now;
 4451         }
 4452         vrf_id = inp->def_vrf_id;
 4453         /* We are GOOD to go */
 4454         stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p);
 4455         if (stcb == NULL) {
 4456                 /* Gak! no memory */
 4457                 goto out_now;
 4458         }
 4459         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 4460                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 4461                 /* Set the connected flag so we can queue data */
 4462                 soisconnecting(so);
 4463         }
 4464         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 4465         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4466 
 4467         /* initialize authentication parameters for the assoc */
 4468         sctp_initialize_auth_params(inp, stcb);
 4469 
 4470         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4471         SCTP_TCB_UNLOCK(stcb);
 4472 out_now:
 4473         if (create_lock_on) {
 4474                 SCTP_ASOC_CREATE_UNLOCK(inp);
 4475         }
 4476         SCTP_INP_DECR_REF(inp);
 4477         return error;
 4478 }
 4479 
 4480 int
 4481 sctp_listen(struct socket *so, int backlog, struct thread *p)
 4482 {
 4483         /*
 4484          * Note this module depends on the protocol processing being called
 4485          * AFTER any socket level flags and backlog are applied to the
 4486          * socket. The traditional way that the socket flags are applied is
 4487          * AFTER protocol processing. We have made a change to the
 4488          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
 4489          * place if the socket API for SCTP is to work properly.
 4490          */
 4491 
 4492         int error = 0;
 4493         struct sctp_inpcb *inp;
 4494 
 4495         inp = (struct sctp_inpcb *)so->so_pcb;
 4496         if (inp == 0) {
 4497                 /* I made the same as TCP since we are not setup? */
 4498                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4499                 return (ECONNRESET);
 4500         }
 4501         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
 4502                 /* See if we have a listener */
 4503                 struct sctp_inpcb *tinp;
 4504                 union sctp_sockstore store, *sp;
 4505 
 4506                 sp = &store;
 4507                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 4508                         /* not bound all */
 4509                         struct sctp_laddr *laddr;
 4510 
 4511                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 4512                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
 4513                                 sp->sin.sin_port = inp->sctp_lport;
 4514                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 4515                                 if (tinp && (tinp != inp) &&
 4516                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 4517                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 4518                                     (tinp->sctp_socket->so_qlimit)) {
 4519                                         /*
 4520                                          * we have a listener already and
 4521                                          * its not this inp.
 4522                                          */
 4523                                         SCTP_INP_DECR_REF(tinp);
 4524                                         return (EADDRINUSE);
 4525                                 } else if (tinp) {
 4526                                         SCTP_INP_DECR_REF(tinp);
 4527                                 }
 4528                         }
 4529                 } else {
 4530                         /* Setup a local addr bound all */
 4531                         memset(&store, 0, sizeof(store));
 4532                         store.sin.sin_port = inp->sctp_lport;
 4533 #ifdef INET6
 4534                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4535                                 store.sa.sa_family = AF_INET6;
 4536                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
 4537                         }
 4538 #endif
 4539                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 4540                                 store.sa.sa_family = AF_INET;
 4541                                 store.sa.sa_len = sizeof(struct sockaddr_in);
 4542                         }
 4543                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 4544                         if (tinp && (tinp != inp) &&
 4545                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 4546                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 4547                             (tinp->sctp_socket->so_qlimit)) {
 4548                                 /*
 4549                                  * we have a listener already and its not
 4550                                  * this inp.
 4551                                  */
 4552                                 SCTP_INP_DECR_REF(tinp);
 4553                                 return (EADDRINUSE);
 4554                         } else if (tinp) {
 4555                                 SCTP_INP_DECR_REF(inp);
 4556                         }
 4557                 }
 4558         }
 4559         SCTP_INP_RLOCK(inp);
 4560 #ifdef SCTP_LOCK_LOGGING
 4561         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
 4562                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
 4563         }
 4564 #endif
 4565         SOCK_LOCK(so);
 4566         error = solisten_proto_check(so);
 4567         if (error) {
 4568                 SOCK_UNLOCK(so);
 4569                 SCTP_INP_RUNLOCK(inp);
 4570                 return (error);
 4571         }
 4572         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
 4573             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 4574                 /*
 4575                  * The unlucky case - We are in the tcp pool with this guy.
 4576                  * - Someone else is in the main inp slot. - We must move
 4577                  * this guy (the listener) to the main slot - We must then
 4578                  * move the guy that was listener to the TCP Pool.
 4579                  */
 4580                 if (sctp_swap_inpcb_for_listen(inp)) {
 4581                         goto in_use;
 4582                 }
 4583         }
 4584         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 4585             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 4586                 /* We are already connected AND the TCP model */
 4587 in_use:
 4588                 SCTP_INP_RUNLOCK(inp);
 4589                 SOCK_UNLOCK(so);
 4590                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 4591                 return (EADDRINUSE);
 4592         }
 4593         SCTP_INP_RUNLOCK(inp);
 4594         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 4595                 /* We must do a bind. */
 4596                 SOCK_UNLOCK(so);
 4597                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 4598                         /* bind error, probably perm */
 4599                         return (error);
 4600                 }
 4601                 SOCK_LOCK(so);
 4602         }
 4603         /* It appears for 7.0 and on, we must always call this. */
 4604         solisten_proto(so, backlog);
 4605         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 4606                 /* remove the ACCEPTCONN flag for one-to-many sockets */
 4607                 so->so_options &= ~SO_ACCEPTCONN;
 4608         }
 4609         if (backlog == 0) {
 4610                 /* turning off listen */
 4611                 so->so_options &= ~SO_ACCEPTCONN;
 4612         }
 4613         SOCK_UNLOCK(so);
 4614         return (error);
 4615 }
 4616 
 4617 static int sctp_defered_wakeup_cnt = 0;
 4618 
 4619 int
 4620 sctp_accept(struct socket *so, struct sockaddr **addr)
 4621 {
 4622         struct sctp_tcb *stcb;
 4623         struct sctp_inpcb *inp;
 4624         union sctp_sockstore store;
 4625 
 4626 #ifdef INET6
 4627         int error;
 4628 
 4629 #endif
 4630         inp = (struct sctp_inpcb *)so->so_pcb;
 4631 
 4632         if (inp == 0) {
 4633                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4634                 return (ECONNRESET);
 4635         }
 4636         SCTP_INP_RLOCK(inp);
 4637         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 4638                 SCTP_INP_RUNLOCK(inp);
 4639                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4640                 return (EOPNOTSUPP);
 4641         }
 4642         if (so->so_state & SS_ISDISCONNECTED) {
 4643                 SCTP_INP_RUNLOCK(inp);
 4644                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
 4645                 return (ECONNABORTED);
 4646         }
 4647         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4648         if (stcb == NULL) {
 4649                 SCTP_INP_RUNLOCK(inp);
 4650                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4651                 return (ECONNRESET);
 4652         }
 4653         SCTP_TCB_LOCK(stcb);
 4654         SCTP_INP_RUNLOCK(inp);
 4655         store = stcb->asoc.primary_destination->ro._l_addr;
 4656         SCTP_TCB_UNLOCK(stcb);
 4657         switch (store.sa.sa_family) {
 4658         case AF_INET:
 4659                 {
 4660                         struct sockaddr_in *sin;
 4661 
 4662                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 4663                         sin->sin_family = AF_INET;
 4664                         sin->sin_len = sizeof(*sin);
 4665                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
 4666                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
 4667                         *addr = (struct sockaddr *)sin;
 4668                         break;
 4669                 }
 4670 #ifdef INET6
 4671         case AF_INET6:
 4672                 {
 4673                         struct sockaddr_in6 *sin6;
 4674 
 4675                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 4676                         sin6->sin6_family = AF_INET6;
 4677                         sin6->sin6_len = sizeof(*sin6);
 4678                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
 4679 
 4680                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
 4681                         if ((error = sa6_recoverscope(sin6)) != 0) {
 4682                                 SCTP_FREE_SONAME(sin6);
 4683                                 return (error);
 4684                         }
 4685                         *addr = (struct sockaddr *)sin6;
 4686                         break;
 4687                 }
 4688 #endif
 4689         default:
 4690                 /* TSNH */
 4691                 break;
 4692         }
 4693         /* Wake any delayed sleep action */
 4694         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 4695                 SCTP_INP_WLOCK(inp);
 4696                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 4697                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 4698                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 4699                         SCTP_INP_WUNLOCK(inp);
 4700                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
 4701                         if (sowriteable(inp->sctp_socket)) {
 4702                                 sowwakeup_locked(inp->sctp_socket);
 4703                         } else {
 4704                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
 4705                         }
 4706                         SCTP_INP_WLOCK(inp);
 4707                 }
 4708                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 4709                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 4710                         SCTP_INP_WUNLOCK(inp);
 4711                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
 4712                         if (soreadable(inp->sctp_socket)) {
 4713                                 sctp_defered_wakeup_cnt++;
 4714                                 sorwakeup_locked(inp->sctp_socket);
 4715                         } else {
 4716                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
 4717                         }
 4718                         SCTP_INP_WLOCK(inp);
 4719                 }
 4720                 SCTP_INP_WUNLOCK(inp);
 4721         }
 4722         return (0);
 4723 }
 4724 
 4725 int
 4726 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 4727 {
 4728         struct sockaddr_in *sin;
 4729         uint32_t vrf_id;
 4730         struct sctp_inpcb *inp;
 4731         struct sctp_ifa *sctp_ifa;
 4732 
 4733         /*
 4734          * Do the malloc first in case it blocks.
 4735          */
 4736         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 4737         sin->sin_family = AF_INET;
 4738         sin->sin_len = sizeof(*sin);
 4739         inp = (struct sctp_inpcb *)so->so_pcb;
 4740         if (!inp) {
 4741                 SCTP_FREE_SONAME(sin);
 4742                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4743                 return ECONNRESET;
 4744         }
 4745         SCTP_INP_RLOCK(inp);
 4746         sin->sin_port = inp->sctp_lport;
 4747         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 4748                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4749                         struct sctp_tcb *stcb;
 4750                         struct sockaddr_in *sin_a;
 4751                         struct sctp_nets *net;
 4752                         int fnd;
 4753 
 4754                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4755                         if (stcb == NULL) {
 4756                                 goto notConn;
 4757                         }
 4758                         fnd = 0;
 4759                         sin_a = NULL;
 4760                         SCTP_TCB_LOCK(stcb);
 4761                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4762                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 4763                                 if (sin_a == NULL)
 4764                                         /* this will make coverity happy */
 4765                                         continue;
 4766 
 4767                                 if (sin_a->sin_family == AF_INET) {
 4768                                         fnd = 1;
 4769                                         break;
 4770                                 }
 4771                         }
 4772                         if ((!fnd) || (sin_a == NULL)) {
 4773                                 /* punt */
 4774                                 SCTP_TCB_UNLOCK(stcb);
 4775                                 goto notConn;
 4776                         }
 4777                         vrf_id = inp->def_vrf_id;
 4778                         sctp_ifa = sctp_source_address_selection(inp,
 4779                             stcb,
 4780                             (sctp_route_t *) & net->ro,
 4781                             net, 0, vrf_id);
 4782                         if (sctp_ifa) {
 4783                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
 4784                                 sctp_free_ifa(sctp_ifa);
 4785                         }
 4786                         SCTP_TCB_UNLOCK(stcb);
 4787                 } else {
 4788                         /* For the bound all case you get back 0 */
 4789         notConn:
 4790                         sin->sin_addr.s_addr = 0;
 4791                 }
 4792 
 4793         } else {
 4794                 /* Take the first IPv4 address in the list */
 4795                 struct sctp_laddr *laddr;
 4796                 int fnd = 0;
 4797 
 4798                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 4799                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 4800                                 struct sockaddr_in *sin_a;
 4801 
 4802                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
 4803                                 sin->sin_addr = sin_a->sin_addr;
 4804                                 fnd = 1;
 4805                                 break;
 4806                         }
 4807                 }
 4808                 if (!fnd) {
 4809                         SCTP_FREE_SONAME(sin);
 4810                         SCTP_INP_RUNLOCK(inp);
 4811                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4812                         return ENOENT;
 4813                 }
 4814         }
 4815         SCTP_INP_RUNLOCK(inp);
 4816         (*addr) = (struct sockaddr *)sin;
 4817         return (0);
 4818 }
 4819 
 4820 int
 4821 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 4822 {
 4823         struct sockaddr_in *sin = (struct sockaddr_in *)*addr;
 4824         int fnd;
 4825         struct sockaddr_in *sin_a;
 4826         struct sctp_inpcb *inp;
 4827         struct sctp_tcb *stcb;
 4828         struct sctp_nets *net;
 4829 
 4830         /* Do the malloc first in case it blocks. */
 4831         inp = (struct sctp_inpcb *)so->so_pcb;
 4832         if ((inp == NULL) ||
 4833             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
 4834                 /* UDP type and listeners will drop out here */
 4835                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 4836                 return (ENOTCONN);
 4837         }
 4838         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 4839         sin->sin_family = AF_INET;
 4840         sin->sin_len = sizeof(*sin);
 4841 
 4842         /* We must recapture incase we blocked */
 4843         inp = (struct sctp_inpcb *)so->so_pcb;
 4844         if (!inp) {
 4845                 SCTP_FREE_SONAME(sin);
 4846                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4847                 return ECONNRESET;
 4848         }
 4849         SCTP_INP_RLOCK(inp);
 4850         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4851         if (stcb) {
 4852                 SCTP_TCB_LOCK(stcb);
 4853         }
 4854         SCTP_INP_RUNLOCK(inp);
 4855         if (stcb == NULL) {
 4856                 SCTP_FREE_SONAME(sin);
 4857                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4858                 return ECONNRESET;
 4859         }
 4860         fnd = 0;
 4861         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4862                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 4863                 if (sin_a->sin_family == AF_INET) {
 4864                         fnd = 1;
 4865                         sin->sin_port = stcb->rport;
 4866                         sin->sin_addr = sin_a->sin_addr;
 4867                         break;
 4868                 }
 4869         }
 4870         SCTP_TCB_UNLOCK(stcb);
 4871         if (!fnd) {
 4872                 /* No IPv4 address */
 4873                 SCTP_FREE_SONAME(sin);
 4874                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4875                 return ENOENT;
 4876         }
 4877         (*addr) = (struct sockaddr *)sin;
 4878         return (0);
 4879 }
 4880 
 4881 struct pr_usrreqs sctp_usrreqs = {
 4882         .pru_abort = sctp_abort,
 4883         .pru_accept = sctp_accept,
 4884         .pru_attach = sctp_attach,
 4885         .pru_bind = sctp_bind,
 4886         .pru_connect = sctp_connect,
 4887         .pru_control = in_control,
 4888         .pru_close = sctp_close,
 4889         .pru_detach = sctp_close,
 4890         .pru_sopoll = sopoll_generic,
 4891         .pru_flush = sctp_flush,
 4892         .pru_disconnect = sctp_disconnect,
 4893         .pru_listen = sctp_listen,
 4894         .pru_peeraddr = sctp_peeraddr,
 4895         .pru_send = sctp_sendm,
 4896         .pru_shutdown = sctp_shutdown,
 4897         .pru_sockaddr = sctp_ingetaddr,
 4898         .pru_sosend = sctp_sosend,
 4899         .pru_soreceive = sctp_soreceive
 4900 };
Cache object: 4c7820c580a69c15782d969576f7c211
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FreeBSD/Linux Kernel Cross Reference sys/netinet/sctp_usrreq.c

FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_usrreq.c
