The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/10.3/sys/netinet/sctp_usrreq.c 294222 2016-01-17 14:10:37Z tuexen $");
   35 
   36 #include <netinet/sctp_os.h>
   37 #include <sys/proc.h>
   38 #include <netinet/sctp_pcb.h>
   39 #include <netinet/sctp_header.h>
   40 #include <netinet/sctp_var.h>
   41 #ifdef INET6
   42 #include <netinet6/sctp6_var.h>
   43 #endif
   44 #include <netinet/sctp_sysctl.h>
   45 #include <netinet/sctp_output.h>
   46 #include <netinet/sctp_uio.h>
   47 #include <netinet/sctp_asconf.h>
   48 #include <netinet/sctputil.h>
   49 #include <netinet/sctp_indata.h>
   50 #include <netinet/sctp_timer.h>
   51 #include <netinet/sctp_auth.h>
   52 #include <netinet/sctp_bsd_addr.h>
   53 #include <netinet/udp.h>
   54 
   55 
   56 
   57 extern struct sctp_cc_functions sctp_cc_functions[];
   58 extern struct sctp_ss_functions sctp_ss_functions[];
   59 
   60 void
   61 sctp_init(void)
   62 {
   63         u_long sb_max_adj;
   64 
   65         /* Initialize and modify the sysctled variables */
   66         sctp_init_sysctls();
   67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
   68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
   69         /*
   70          * Allow a user to take no more than 1/2 the number of clusters or
   71          * the SB_MAX whichever is smaller for the send window.
   72          */
   73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
   74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
   75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
   76         /*
   77          * Now for the recv window, should we take the same amount? or
   78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
   79          * now I will just copy.
   80          */
   81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
   82         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 void
   93 sctp_finish(void)
   94 {
   95         sctp_pcb_finish();
   96 }
   97 
   98 
   99 
  100 void
  101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
  102 {
  103         struct sctp_tmit_chunk *chk;
  104         uint16_t overhead;
  105 
  106         /* Adjust that too */
  107         stcb->asoc.smallest_mtu = nxtsz;
  108         /* now off to subtract IP_DF flag if needed */
  109         overhead = IP_HDR_SIZE;
  110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
  111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
  112         }
  113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
  114                 if ((chk->send_size + overhead) > nxtsz) {
  115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  116                 }
  117         }
  118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
  119                 if ((chk->send_size + overhead) > nxtsz) {
  120                         /*
  121                          * For this guy we also mark for immediate resend
  122                          * since we sent to big of chunk
  123                          */
  124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
  126                                 sctp_flight_size_decrease(chk);
  127                                 sctp_total_flight_decrease(stcb, chk);
  128                                 chk->sent = SCTP_DATAGRAM_RESEND;
  129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
  130                                 chk->rec.data.doing_fast_retransmit = 0;
  131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
  132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
  133                                             chk->whoTo->flight_size,
  134                                             chk->book_size,
  135                                             (uintptr_t) chk->whoTo,
  136                                             chk->rec.data.TSN_seq);
  137                                 }
  138                                 /* Clear any time so NO RTT is being done */
  139                                 chk->do_rtt = 0;
  140                         }
  141                 }
  142         }
  143 }
  144 
  145 #ifdef INET
  146 static void
  147 sctp_notify_mbuf(struct sctp_inpcb *inp,
  148     struct sctp_tcb *stcb,
  149     struct sctp_nets *net,
  150     struct ip *ip,
  151     struct sctphdr *sh)
  152 {
  153         struct icmp *icmph;
  154         int totsz, tmr_stopped = 0;
  155         uint16_t nxtsz;
  156 
  157         /* protection */
  158         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  159             (ip == NULL) || (sh == NULL)) {
  160                 if (stcb != NULL) {
  161                         SCTP_TCB_UNLOCK(stcb);
  162                 }
  163                 return;
  164         }
  165         /* First job is to verify the vtag matches what I would send */
  166         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  167                 SCTP_TCB_UNLOCK(stcb);
  168                 return;
  169         }
  170         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  171             sizeof(struct ip)));
  172         if (icmph->icmp_type != ICMP_UNREACH) {
  173                 /* We only care about unreachable */
  174                 SCTP_TCB_UNLOCK(stcb);
  175                 return;
  176         }
  177         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
  178                 /* not a unreachable message due to frag. */
  179                 SCTP_TCB_UNLOCK(stcb);
  180                 return;
  181         }
  182         totsz = ntohs(ip->ip_len);
  183 
  184         nxtsz = ntohs(icmph->icmp_nextmtu);
  185         if (nxtsz == 0) {
  186                 /*
  187                  * old type router that does not tell us what the next size
  188                  * mtu is. Rats we will have to guess (in a educated fashion
  189                  * of course)
  190                  */
  191                 nxtsz = sctp_get_prev_mtu(totsz);
  192         }
  193         /* Stop any PMTU timer */
  194         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  195                 tmr_stopped = 1;
  196                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  197                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  198         }
  199         /* Adjust destination size limit */
  200         if (net->mtu > nxtsz) {
  201                 net->mtu = nxtsz;
  202                 if (net->port) {
  203                         net->mtu -= sizeof(struct udphdr);
  204                 }
  205         }
  206         /* now what about the ep? */
  207         if (stcb->asoc.smallest_mtu > nxtsz) {
  208                 sctp_pathmtu_adjustment(stcb, nxtsz);
  209         }
  210         if (tmr_stopped)
  211                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  212 
  213         SCTP_TCB_UNLOCK(stcb);
  214 }
  215 
  216 void
  217 sctp_notify(struct sctp_inpcb *inp,
  218     struct ip *ip,
  219     struct sctphdr *sh,
  220     struct sockaddr *to,
  221     struct sctp_tcb *stcb,
  222     struct sctp_nets *net)
  223 {
  224 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  225         struct socket *so;
  226 
  227 #endif
  228         struct icmp *icmph;
  229 
  230         /* protection */
  231         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  232             (sh == NULL) || (to == NULL)) {
  233                 if (stcb)
  234                         SCTP_TCB_UNLOCK(stcb);
  235                 return;
  236         }
  237         /* First job is to verify the vtag matches what I would send */
  238         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  239                 SCTP_TCB_UNLOCK(stcb);
  240                 return;
  241         }
  242         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  243             sizeof(struct ip)));
  244         if (icmph->icmp_type != ICMP_UNREACH) {
  245                 /* We only care about unreachable */
  246                 SCTP_TCB_UNLOCK(stcb);
  247                 return;
  248         }
  249         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
  250             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
  251             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  252             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  253             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
  254             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  255             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  256             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  257 
  258                 /*
  259                  * Hmm reachablity problems we must examine closely. If its
  260                  * not reachable, we may have lost a network. Or if there is
  261                  * NO protocol at the other end named SCTP. well we consider
  262                  * it a OOTB abort.
  263                  */
  264                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  265                         /* Ok that destination is NOT reachable */
  266                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  267                         net->dest_state &= ~SCTP_ADDR_PF;
  268                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  269                             stcb, 0,
  270                             (void *)net, SCTP_SO_NOT_LOCKED);
  271                 }
  272                 SCTP_TCB_UNLOCK(stcb);
  273         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
  274             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
  275                 /*
  276                  * Here the peer is either playing tricks on us, including
  277                  * an address that belongs to someone who does not support
  278                  * SCTP OR was a userland implementation that shutdown and
  279                  * now is dead. In either case treat it like a OOTB abort
  280                  * with no TCB
  281                  */
  282                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
  283 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  284                 so = SCTP_INP_SO(inp);
  285                 atomic_add_int(&stcb->asoc.refcnt, 1);
  286                 SCTP_TCB_UNLOCK(stcb);
  287                 SCTP_SOCKET_LOCK(so, 1);
  288                 SCTP_TCB_LOCK(stcb);
  289                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  290 #endif
  291                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  292                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  293 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  294                 SCTP_SOCKET_UNLOCK(so, 1);
  295                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  296 #endif
  297                 /* no need to unlock here, since the TCB is gone */
  298         } else {
  299                 SCTP_TCB_UNLOCK(stcb);
  300         }
  301 }
  302 
  303 #endif
  304 
  305 #ifdef INET
  306 void
  307 sctp_ctlinput(cmd, sa, vip)
  308         int cmd;
  309         struct sockaddr *sa;
  310         void *vip;
  311 {
  312         struct ip *ip = vip;
  313         struct sctphdr *sh;
  314         uint32_t vrf_id;
  315 
  316         /* FIX, for non-bsd is this right? */
  317         vrf_id = SCTP_DEFAULT_VRFID;
  318         if (sa->sa_family != AF_INET ||
  319             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  320                 return;
  321         }
  322         if (PRC_IS_REDIRECT(cmd)) {
  323                 ip = 0;
  324         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  325                 return;
  326         }
  327         if (ip) {
  328                 struct sctp_inpcb *inp = NULL;
  329                 struct sctp_tcb *stcb = NULL;
  330                 struct sctp_nets *net = NULL;
  331                 struct sockaddr_in to, from;
  332 
  333                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
  334                 bzero(&to, sizeof(to));
  335                 bzero(&from, sizeof(from));
  336                 from.sin_family = to.sin_family = AF_INET;
  337                 from.sin_len = to.sin_len = sizeof(to);
  338                 from.sin_port = sh->src_port;
  339                 from.sin_addr = ip->ip_src;
  340                 to.sin_port = sh->dest_port;
  341                 to.sin_addr = ip->ip_dst;
  342 
  343                 /*
  344                  * 'to' holds the dest of the packet that failed to be sent.
  345                  * 'from' holds our local endpoint address. Thus we reverse
  346                  * the to and the from in the lookup.
  347                  */
  348                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
  349                     (struct sockaddr *)&from,
  350                     &inp, &net, 1, vrf_id);
  351                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
  352                         if (cmd != PRC_MSGSIZE) {
  353                                 sctp_notify(inp, ip, sh,
  354                                     (struct sockaddr *)&to, stcb,
  355                                     net);
  356                         } else {
  357                                 /* handle possible ICMP size messages */
  358                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
  359                         }
  360                 } else {
  361                         if ((stcb == NULL) && (inp != NULL)) {
  362                                 /* reduce ref-count */
  363                                 SCTP_INP_WLOCK(inp);
  364                                 SCTP_INP_DECR_REF(inp);
  365                                 SCTP_INP_WUNLOCK(inp);
  366                         }
  367                         if (stcb) {
  368                                 SCTP_TCB_UNLOCK(stcb);
  369                         }
  370                 }
  371         }
  372         return;
  373 }
  374 
  375 #endif
  376 
  377 static int
  378 sctp_getcred(SYSCTL_HANDLER_ARGS)
  379 {
  380         struct xucred xuc;
  381         struct sockaddr_in addrs[2];
  382         struct sctp_inpcb *inp;
  383         struct sctp_nets *net;
  384         struct sctp_tcb *stcb;
  385         int error;
  386         uint32_t vrf_id;
  387 
  388         /* FIX, for non-bsd is this right? */
  389         vrf_id = SCTP_DEFAULT_VRFID;
  390 
  391         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  392 
  393         if (error)
  394                 return (error);
  395 
  396         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  397         if (error)
  398                 return (error);
  399 
  400         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
  401             sintosa(&addrs[0]),
  402             &inp, &net, 1, vrf_id);
  403         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  404                 if ((inp != NULL) && (stcb == NULL)) {
  405                         /* reduce ref-count */
  406                         SCTP_INP_WLOCK(inp);
  407                         SCTP_INP_DECR_REF(inp);
  408                         goto cred_can_cont;
  409                 }
  410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  411                 error = ENOENT;
  412                 goto out;
  413         }
  414         SCTP_TCB_UNLOCK(stcb);
  415         /*
  416          * We use the write lock here, only since in the error leg we need
  417          * it. If we used RLOCK, then we would have to
  418          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  419          * Better to use higher wlock.
  420          */
  421         SCTP_INP_WLOCK(inp);
  422 cred_can_cont:
  423         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  424         if (error) {
  425                 SCTP_INP_WUNLOCK(inp);
  426                 goto out;
  427         }
  428         cru2x(inp->sctp_socket->so_cred, &xuc);
  429         SCTP_INP_WUNLOCK(inp);
  430         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  431 out:
  432         return (error);
  433 }
  434 
  435 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  436     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  437 
  438 
  439 #ifdef INET
  440 static void
  441 sctp_abort(struct socket *so)
  442 {
  443         struct sctp_inpcb *inp;
  444         uint32_t flags;
  445 
  446         inp = (struct sctp_inpcb *)so->so_pcb;
  447         if (inp == NULL) {
  448                 return;
  449         }
  450 sctp_must_try_again:
  451         flags = inp->sctp_flags;
  452 #ifdef SCTP_LOG_CLOSING
  453         sctp_log_closing(inp, NULL, 17);
  454 #endif
  455         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  456             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  457 #ifdef SCTP_LOG_CLOSING
  458                 sctp_log_closing(inp, NULL, 16);
  459 #endif
  460                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  461                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  462                 SOCK_LOCK(so);
  463                 SCTP_SB_CLEAR(so->so_snd);
  464                 /*
  465                  * same for the rcv ones, they are only here for the
  466                  * accounting/select.
  467                  */
  468                 SCTP_SB_CLEAR(so->so_rcv);
  469 
  470                 /* Now null out the reference, we are completely detached. */
  471                 so->so_pcb = NULL;
  472                 SOCK_UNLOCK(so);
  473         } else {
  474                 flags = inp->sctp_flags;
  475                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  476                         goto sctp_must_try_again;
  477                 }
  478         }
  479         return;
  480 }
  481 
  482 static int
  483 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
  484 {
  485         struct sctp_inpcb *inp;
  486         struct inpcb *ip_inp;
  487         int error;
  488         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  489 
  490         inp = (struct sctp_inpcb *)so->so_pcb;
  491         if (inp != 0) {
  492                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  493                 return (EINVAL);
  494         }
  495         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  496                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  497                 if (error) {
  498                         return (error);
  499                 }
  500         }
  501         error = sctp_inpcb_alloc(so, vrf_id);
  502         if (error) {
  503                 return (error);
  504         }
  505         inp = (struct sctp_inpcb *)so->so_pcb;
  506         SCTP_INP_WLOCK(inp);
  507         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  508         ip_inp = &inp->ip_inp.inp;
  509         ip_inp->inp_vflag |= INP_IPV4;
  510         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
  511         SCTP_INP_WUNLOCK(inp);
  512         return (0);
  513 }
  514 
  515 static int
  516 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  517 {
  518         struct sctp_inpcb *inp;
  519 
  520         inp = (struct sctp_inpcb *)so->so_pcb;
  521         if (inp == NULL) {
  522                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  523                 return (EINVAL);
  524         }
  525         if (addr != NULL) {
  526                 if ((addr->sa_family != AF_INET) ||
  527                     (addr->sa_len != sizeof(struct sockaddr_in))) {
  528                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  529                         return (EINVAL);
  530                 }
  531         }
  532         return (sctp_inpcb_bind(so, addr, NULL, p));
  533 }
  534 
  535 #endif
  536 void
  537 sctp_close(struct socket *so)
  538 {
  539         struct sctp_inpcb *inp;
  540         uint32_t flags;
  541 
  542         inp = (struct sctp_inpcb *)so->so_pcb;
  543         if (inp == NULL)
  544                 return;
  545 
  546         /*
  547          * Inform all the lower layer assoc that we are done.
  548          */
  549 sctp_must_try_again:
  550         flags = inp->sctp_flags;
  551 #ifdef SCTP_LOG_CLOSING
  552         sctp_log_closing(inp, NULL, 17);
  553 #endif
  554         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  555             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  556                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  557                     (so->so_rcv.sb_cc > 0)) {
  558 #ifdef SCTP_LOG_CLOSING
  559                         sctp_log_closing(inp, NULL, 13);
  560 #endif
  561                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  562                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  563                 } else {
  564 #ifdef SCTP_LOG_CLOSING
  565                         sctp_log_closing(inp, NULL, 14);
  566 #endif
  567                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  568                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  569                 }
  570                 /*
  571                  * The socket is now detached, no matter what the state of
  572                  * the SCTP association.
  573                  */
  574                 SOCK_LOCK(so);
  575                 SCTP_SB_CLEAR(so->so_snd);
  576                 /*
  577                  * same for the rcv ones, they are only here for the
  578                  * accounting/select.
  579                  */
  580                 SCTP_SB_CLEAR(so->so_rcv);
  581 
  582                 /* Now null out the reference, we are completely detached. */
  583                 so->so_pcb = NULL;
  584                 SOCK_UNLOCK(so);
  585         } else {
  586                 flags = inp->sctp_flags;
  587                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  588                         goto sctp_must_try_again;
  589                 }
  590         }
  591         return;
  592 }
  593 
  594 
  595 int
  596 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  597     struct mbuf *control, struct thread *p);
  598 
  599 
  600 int
  601 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  602     struct mbuf *control, struct thread *p)
  603 {
  604         struct sctp_inpcb *inp;
  605         int error;
  606 
  607         inp = (struct sctp_inpcb *)so->so_pcb;
  608         if (inp == NULL) {
  609                 if (control) {
  610                         sctp_m_freem(control);
  611                         control = NULL;
  612                 }
  613                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  614                 sctp_m_freem(m);
  615                 return (EINVAL);
  616         }
  617         /* Got to have an to address if we are NOT a connected socket */
  618         if ((addr == NULL) &&
  619             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  620             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
  621                 goto connected_type;
  622         } else if (addr == NULL) {
  623                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  624                 error = EDESTADDRREQ;
  625                 sctp_m_freem(m);
  626                 if (control) {
  627                         sctp_m_freem(control);
  628                         control = NULL;
  629                 }
  630                 return (error);
  631         }
  632 #ifdef INET6
  633         if (addr->sa_family != AF_INET) {
  634                 /* must be a v4 address! */
  635                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  636                 sctp_m_freem(m);
  637                 if (control) {
  638                         sctp_m_freem(control);
  639                         control = NULL;
  640                 }
  641                 error = EDESTADDRREQ;
  642                 return (error);
  643         }
  644 #endif                          /* INET6 */
  645 connected_type:
  646         /* now what about control */
  647         if (control) {
  648                 if (inp->control) {
  649                         SCTP_PRINTF("huh? control set?\n");
  650                         sctp_m_freem(inp->control);
  651                         inp->control = NULL;
  652                 }
  653                 inp->control = control;
  654         }
  655         /* Place the data */
  656         if (inp->pkt) {
  657                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  658                 inp->pkt_last = m;
  659         } else {
  660                 inp->pkt_last = inp->pkt = m;
  661         }
  662         if (
  663         /* FreeBSD uses a flag passed */
  664             ((flags & PRUS_MORETOCOME) == 0)
  665             ) {
  666                 /*
  667                  * note with the current version this code will only be used
  668                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  669                  * re-defining sosend to use the sctp_sosend. One can
  670                  * optionally switch back to this code (by changing back the
  671                  * definitions) but this is not advisable. This code is used
  672                  * by FreeBSD when sending a file with sendfile() though.
  673                  */
  674                 int ret;
  675 
  676                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  677                 inp->pkt = NULL;
  678                 inp->control = NULL;
  679                 return (ret);
  680         } else {
  681                 return (0);
  682         }
  683 }
  684 
  685 int
  686 sctp_disconnect(struct socket *so)
  687 {
  688         struct sctp_inpcb *inp;
  689 
  690         inp = (struct sctp_inpcb *)so->so_pcb;
  691         if (inp == NULL) {
  692                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  693                 return (ENOTCONN);
  694         }
  695         SCTP_INP_RLOCK(inp);
  696         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  697             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  698                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
  699                         /* No connection */
  700                         SCTP_INP_RUNLOCK(inp);
  701                         return (0);
  702                 } else {
  703                         struct sctp_association *asoc;
  704                         struct sctp_tcb *stcb;
  705 
  706                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  707                         if (stcb == NULL) {
  708                                 SCTP_INP_RUNLOCK(inp);
  709                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  710                                 return (EINVAL);
  711                         }
  712                         SCTP_TCB_LOCK(stcb);
  713                         asoc = &stcb->asoc;
  714                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  715                                 /* We are about to be freed, out of here */
  716                                 SCTP_TCB_UNLOCK(stcb);
  717                                 SCTP_INP_RUNLOCK(inp);
  718                                 return (0);
  719                         }
  720                         if (((so->so_options & SO_LINGER) &&
  721                             (so->so_linger == 0)) ||
  722                             (so->so_rcv.sb_cc > 0)) {
  723                                 if (SCTP_GET_STATE(asoc) !=
  724                                     SCTP_STATE_COOKIE_WAIT) {
  725                                         /* Left with Data unread */
  726                                         struct mbuf *err;
  727 
  728                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
  729                                         if (err) {
  730                                                 /*
  731                                                  * Fill in the user
  732                                                  * initiated abort
  733                                                  */
  734                                                 struct sctp_paramhdr *ph;
  735 
  736                                                 ph = mtod(err, struct sctp_paramhdr *);
  737                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
  738                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  739                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
  740                                         }
  741                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
  742                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  743                                 }
  744                                 SCTP_INP_RUNLOCK(inp);
  745                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  746                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  747                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  748                                 }
  749                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  750                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  751                                 /* No unlock tcb assoc is gone */
  752                                 return (0);
  753                         }
  754                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  755                             TAILQ_EMPTY(&asoc->sent_queue) &&
  756                             (asoc->stream_queue_cnt == 0)) {
  757                                 /* there is nothing queued to send, so done */
  758                                 if (asoc->locked_on_sending) {
  759                                         goto abort_anyway;
  760                                 }
  761                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
  762                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  763                                         /* only send SHUTDOWN 1st time thru */
  764                                         struct sctp_nets *netp;
  765 
  766                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
  767                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  768                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  769                                         }
  770                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  771                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  772                                         sctp_stop_timers_for_shutdown(stcb);
  773                                         if (stcb->asoc.alternate) {
  774                                                 netp = stcb->asoc.alternate;
  775                                         } else {
  776                                                 netp = stcb->asoc.primary_destination;
  777                                         }
  778                                         sctp_send_shutdown(stcb, netp);
  779                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  780                                             stcb->sctp_ep, stcb, netp);
  781                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  782                                             stcb->sctp_ep, stcb, netp);
  783                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  784                                 }
  785                         } else {
  786                                 /*
  787                                  * we still got (or just got) data to send,
  788                                  * so set SHUTDOWN_PENDING
  789                                  */
  790                                 /*
  791                                  * XXX sockets draft says that SCTP_EOF
  792                                  * should be sent with no data. currently,
  793                                  * we will allow user data to be sent first
  794                                  * and move to SHUTDOWN-PENDING
  795                                  */
  796                                 struct sctp_nets *netp;
  797 
  798                                 if (stcb->asoc.alternate) {
  799                                         netp = stcb->asoc.alternate;
  800                                 } else {
  801                                         netp = stcb->asoc.primary_destination;
  802                                 }
  803 
  804                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
  805                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  806                                     netp);
  807                                 if (asoc->locked_on_sending) {
  808                                         /* Locked to send out the data */
  809                                         struct sctp_stream_queue_pending *sp;
  810 
  811                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
  812                                         if (sp == NULL) {
  813                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
  814                                                     asoc->locked_on_sending->stream_no);
  815                                         } else {
  816                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
  817                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
  818                                         }
  819                                 }
  820                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  821                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  822                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  823                                         struct mbuf *op_err;
  824 
  825                         abort_anyway:
  826                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  827                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  828                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  829                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  830                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  831                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  832                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  833                                         }
  834                                         SCTP_INP_RUNLOCK(inp);
  835                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  836                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  837                                         return (0);
  838                                 } else {
  839                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  840                                 }
  841                         }
  842                         soisdisconnecting(so);
  843                         SCTP_TCB_UNLOCK(stcb);
  844                         SCTP_INP_RUNLOCK(inp);
  845                         return (0);
  846                 }
  847                 /* not reached */
  848         } else {
  849                 /* UDP model does not support this */
  850                 SCTP_INP_RUNLOCK(inp);
  851                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  852                 return (EOPNOTSUPP);
  853         }
  854 }
  855 
  856 int
  857 sctp_flush(struct socket *so, int how)
  858 {
  859         /*
  860          * We will just clear out the values and let subsequent close clear
  861          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  862          * they will not be able to read the data, the socket will block
  863          * that from happening.
  864          */
  865         struct sctp_inpcb *inp;
  866 
  867         inp = (struct sctp_inpcb *)so->so_pcb;
  868         if (inp == NULL) {
  869                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  870                 return (EINVAL);
  871         }
  872         SCTP_INP_RLOCK(inp);
  873         /* For the 1 to many model this does nothing */
  874         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  875                 SCTP_INP_RUNLOCK(inp);
  876                 return (0);
  877         }
  878         SCTP_INP_RUNLOCK(inp);
  879         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  880                 /*
  881                  * First make sure the sb will be happy, we don't use these
  882                  * except maybe the count
  883                  */
  884                 SCTP_INP_WLOCK(inp);
  885                 SCTP_INP_READ_LOCK(inp);
  886                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
  887                 SCTP_INP_READ_UNLOCK(inp);
  888                 SCTP_INP_WUNLOCK(inp);
  889                 so->so_rcv.sb_cc = 0;
  890                 so->so_rcv.sb_mbcnt = 0;
  891                 so->so_rcv.sb_mb = NULL;
  892         }
  893         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  894                 /*
  895                  * First make sure the sb will be happy, we don't use these
  896                  * except maybe the count
  897                  */
  898                 so->so_snd.sb_cc = 0;
  899                 so->so_snd.sb_mbcnt = 0;
  900                 so->so_snd.sb_mb = NULL;
  901 
  902         }
  903         return (0);
  904 }
  905 
  906 int
  907 sctp_shutdown(struct socket *so)
  908 {
  909         struct sctp_inpcb *inp;
  910 
  911         inp = (struct sctp_inpcb *)so->so_pcb;
  912         if (inp == NULL) {
  913                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  914                 return (EINVAL);
  915         }
  916         SCTP_INP_RLOCK(inp);
  917         /* For UDP model this is a invalid call */
  918         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  919             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
  920                 /* Restore the flags that the soshutdown took away. */
  921                 SOCKBUF_LOCK(&so->so_rcv);
  922                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  923                 SOCKBUF_UNLOCK(&so->so_rcv);
  924                 /* This proc will wakeup for read and do nothing (I hope) */
  925                 SCTP_INP_RUNLOCK(inp);
  926                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  927                 return (EOPNOTSUPP);
  928         } else {
  929                 /*
  930                  * Ok, if we reach here its the TCP model and it is either a
  931                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
  932                  * against it.
  933                  */
  934                 struct sctp_tcb *stcb;
  935                 struct sctp_association *asoc;
  936                 struct sctp_nets *netp;
  937 
  938                 if ((so->so_state &
  939                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  940                         SCTP_INP_RUNLOCK(inp);
  941                         return (ENOTCONN);
  942                 }
  943                 socantsendmore(so);
  944 
  945                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  946                 if (stcb == NULL) {
  947                         /*
  948                          * Ok, we hit the case that the shutdown call was
  949                          * made after an abort or something. Nothing to do
  950                          * now.
  951                          */
  952                         SCTP_INP_RUNLOCK(inp);
  953                         return (0);
  954                 }
  955                 SCTP_TCB_LOCK(stcb);
  956                 asoc = &stcb->asoc;
  957                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  958                         SCTP_TCB_UNLOCK(stcb);
  959                         SCTP_INP_RUNLOCK(inp);
  960                         return (0);
  961                 }
  962                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
  963                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
  964                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
  965                         /*
  966                          * If we are not in or before ESTABLISHED, there is
  967                          * no protocol action required.
  968                          */
  969                         SCTP_TCB_UNLOCK(stcb);
  970                         SCTP_INP_RUNLOCK(inp);
  971                         return (0);
  972                 }
  973                 if (stcb->asoc.alternate) {
  974                         netp = stcb->asoc.alternate;
  975                 } else {
  976                         netp = stcb->asoc.primary_destination;
  977                 }
  978                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
  979                     TAILQ_EMPTY(&asoc->send_queue) &&
  980                     TAILQ_EMPTY(&asoc->sent_queue) &&
  981                     (asoc->stream_queue_cnt == 0)) {
  982                         if (asoc->locked_on_sending) {
  983                                 goto abort_anyway;
  984                         }
  985                         /* there is nothing queued to send, so I'm done... */
  986                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  987                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  988                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  989                         sctp_stop_timers_for_shutdown(stcb);
  990                         sctp_send_shutdown(stcb, netp);
  991                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  992                             stcb->sctp_ep, stcb, netp);
  993                 } else {
  994                         /*
  995                          * We still got (or just got) data to send, so set
  996                          * SHUTDOWN_PENDING.
  997                          */
  998                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  999                         if (asoc->locked_on_sending) {
 1000                                 /* Locked to send out the data */
 1001                                 struct sctp_stream_queue_pending *sp;
 1002 
 1003                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 1004                                 if (sp == NULL) {
 1005                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 1006                                             asoc->locked_on_sending->stream_no);
 1007                                 } else {
 1008                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 1009                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 1010                                         }
 1011                                 }
 1012                         }
 1013                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 1014                             TAILQ_EMPTY(&asoc->sent_queue) &&
 1015                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 1016                                 struct mbuf *op_err;
 1017 
 1018                 abort_anyway:
 1019                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 1020                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 1021                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 1022                                     op_err, SCTP_SO_LOCKED);
 1023                                 SCTP_INP_RUNLOCK(inp);
 1024                                 return (0);
 1025                         }
 1026                 }
 1027                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 1028                 /*
 1029                  * XXX: Why do this in the case where we have still data
 1030                  * queued?
 1031                  */
 1032                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 1033                 SCTP_TCB_UNLOCK(stcb);
 1034                 SCTP_INP_RUNLOCK(inp);
 1035                 return (0);
 1036         }
 1037 }
 1038 
 1039 /*
 1040  * copies a "user" presentable address and removes embedded scope, etc.
 1041  * returns 0 on success, 1 on error
 1042  */
 1043 static uint32_t
 1044 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 1045 {
 1046 #ifdef INET6
 1047         struct sockaddr_in6 lsa6;
 1048 
 1049         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 1050             &lsa6);
 1051 #endif
 1052         memcpy(ss, sa, sa->sa_len);
 1053         return (0);
 1054 }
 1055 
 1056 
 1057 
 1058 /*
 1059  * NOTE: assumes addr lock is held
 1060  */
 1061 static size_t
 1062 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1063     struct sctp_tcb *stcb,
 1064     size_t limit,
 1065     struct sockaddr_storage *sas,
 1066     uint32_t vrf_id)
 1067 {
 1068         struct sctp_ifn *sctp_ifn;
 1069         struct sctp_ifa *sctp_ifa;
 1070         size_t actual;
 1071         int loopback_scope;
 1072 
 1073 #if defined(INET)
 1074         int ipv4_local_scope, ipv4_addr_legal;
 1075 
 1076 #endif
 1077 #if defined(INET6)
 1078         int local_scope, site_scope, ipv6_addr_legal;
 1079 
 1080 #endif
 1081         struct sctp_vrf *vrf;
 1082 
 1083         actual = 0;
 1084         if (limit <= 0)
 1085                 return (actual);
 1086 
 1087         if (stcb) {
 1088                 /* Turn on all the appropriate scope */
 1089                 loopback_scope = stcb->asoc.scope.loopback_scope;
 1090 #if defined(INET)
 1091                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 1092                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 1093 #endif
 1094 #if defined(INET6)
 1095                 local_scope = stcb->asoc.scope.local_scope;
 1096                 site_scope = stcb->asoc.scope.site_scope;
 1097                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 1098 #endif
 1099         } else {
 1100                 /* Use generic values for endpoints. */
 1101                 loopback_scope = 1;
 1102 #if defined(INET)
 1103                 ipv4_local_scope = 1;
 1104 #endif
 1105 #if defined(INET6)
 1106                 local_scope = 1;
 1107                 site_scope = 1;
 1108 #endif
 1109                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1110 #if defined(INET6)
 1111                         ipv6_addr_legal = 1;
 1112 #endif
 1113 #if defined(INET)
 1114                         if (SCTP_IPV6_V6ONLY(inp)) {
 1115                                 ipv4_addr_legal = 0;
 1116                         } else {
 1117                                 ipv4_addr_legal = 1;
 1118                         }
 1119 #endif
 1120                 } else {
 1121 #if defined(INET6)
 1122                         ipv6_addr_legal = 0;
 1123 #endif
 1124 #if defined(INET)
 1125                         ipv4_addr_legal = 1;
 1126 #endif
 1127                 }
 1128         }
 1129         vrf = sctp_find_vrf(vrf_id);
 1130         if (vrf == NULL) {
 1131                 return (0);
 1132         }
 1133         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1134                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1135                         if ((loopback_scope == 0) &&
 1136                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1137                                 /* Skip loopback if loopback_scope not set */
 1138                                 continue;
 1139                         }
 1140                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1141                                 if (stcb) {
 1142                                         /*
 1143                                          * For the BOUND-ALL case, the list
 1144                                          * associated with a TCB is Always
 1145                                          * considered a reverse list.. i.e.
 1146                                          * it lists addresses that are NOT
 1147                                          * part of the association. If this
 1148                                          * is one of those we must skip it.
 1149                                          */
 1150                                         if (sctp_is_addr_restricted(stcb,
 1151                                             sctp_ifa)) {
 1152                                                 continue;
 1153                                         }
 1154                                 }
 1155                                 switch (sctp_ifa->address.sa.sa_family) {
 1156 #ifdef INET
 1157                                 case AF_INET:
 1158                                         if (ipv4_addr_legal) {
 1159                                                 struct sockaddr_in *sin;
 1160 
 1161                                                 sin = &sctp_ifa->address.sin;
 1162                                                 if (sin->sin_addr.s_addr == 0) {
 1163                                                         /*
 1164                                                          * we skip
 1165                                                          * unspecifed
 1166                                                          * addresses
 1167                                                          */
 1168                                                         continue;
 1169                                                 }
 1170                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 1171                                                     &sin->sin_addr) != 0) {
 1172                                                         continue;
 1173                                                 }
 1174                                                 if ((ipv4_local_scope == 0) &&
 1175                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1176                                                         continue;
 1177                                                 }
 1178 #ifdef INET6
 1179                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1180                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1181                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1182                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1183                                                         actual += sizeof(struct sockaddr_in6);
 1184                                                 } else {
 1185 #endif
 1186                                                         memcpy(sas, sin, sizeof(*sin));
 1187                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1188                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 1189                                                         actual += sizeof(*sin);
 1190 #ifdef INET6
 1191                                                 }
 1192 #endif
 1193                                                 if (actual >= limit) {
 1194                                                         return (actual);
 1195                                                 }
 1196                                         } else {
 1197                                                 continue;
 1198                                         }
 1199                                         break;
 1200 #endif
 1201 #ifdef INET6
 1202                                 case AF_INET6:
 1203                                         if (ipv6_addr_legal) {
 1204                                                 struct sockaddr_in6 *sin6;
 1205 
 1206                                                 sin6 = &sctp_ifa->address.sin6;
 1207                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1208                                                         /*
 1209                                                          * we skip
 1210                                                          * unspecifed
 1211                                                          * addresses
 1212                                                          */
 1213                                                         continue;
 1214                                                 }
 1215                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 1216                                                     &sin6->sin6_addr) != 0) {
 1217                                                         continue;
 1218                                                 }
 1219                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1220                                                         if (local_scope == 0)
 1221                                                                 continue;
 1222                                                         if (sin6->sin6_scope_id == 0) {
 1223                                                                 if (sa6_recoverscope(sin6) != 0)
 1224                                                                         /*
 1225                                                                          * 
 1226                                                                          * bad
 1227                                                                          * 
 1228                                                                          * li
 1229                                                                          * nk
 1230                                                                          * 
 1231                                                                          * loc
 1232                                                                          * al
 1233                                                                          * 
 1234                                                                          * add
 1235                                                                          * re
 1236                                                                          * ss
 1237                                                                          * */
 1238                                                                         continue;
 1239                                                         }
 1240                                                 }
 1241                                                 if ((site_scope == 0) &&
 1242                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1243                                                         continue;
 1244                                                 }
 1245                                                 memcpy(sas, sin6, sizeof(*sin6));
 1246                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1247                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 1248                                                 actual += sizeof(*sin6);
 1249                                                 if (actual >= limit) {
 1250                                                         return (actual);
 1251                                                 }
 1252                                         } else {
 1253                                                 continue;
 1254                                         }
 1255                                         break;
 1256 #endif
 1257                                 default:
 1258                                         /* TSNH */
 1259                                         break;
 1260                                 }
 1261                         }
 1262                 }
 1263         } else {
 1264                 struct sctp_laddr *laddr;
 1265 
 1266                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1267                         if (stcb) {
 1268                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1269                                         continue;
 1270                                 }
 1271                         }
 1272                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1273                                 continue;
 1274                         switch (laddr->ifa->address.sa.sa_family) {
 1275 #ifdef INET
 1276                         case AF_INET:
 1277                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1278                                 break;
 1279 #endif
 1280 #ifdef INET6
 1281                         case AF_INET6:
 1282                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1283                                 break;
 1284 #endif
 1285                         default:
 1286                                 /* TSNH */
 1287                                 break;
 1288                         }
 1289                         sas = (struct sockaddr_storage *)((caddr_t)sas +
 1290                             laddr->ifa->address.sa.sa_len);
 1291                         actual += laddr->ifa->address.sa.sa_len;
 1292                         if (actual >= limit) {
 1293                                 return (actual);
 1294                         }
 1295                 }
 1296         }
 1297         return (actual);
 1298 }
 1299 
 1300 static size_t
 1301 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1302     struct sctp_tcb *stcb,
 1303     size_t limit,
 1304     struct sockaddr_storage *sas)
 1305 {
 1306         size_t size = 0;
 1307 
 1308         SCTP_IPI_ADDR_RLOCK();
 1309         /* fill up addresses for the endpoint's default vrf */
 1310         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1311             inp->def_vrf_id);
 1312         SCTP_IPI_ADDR_RUNLOCK();
 1313         return (size);
 1314 }
 1315 
 1316 /*
 1317  * NOTE: assumes addr lock is held
 1318  */
 1319 static int
 1320 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1321 {
 1322         int cnt = 0;
 1323         struct sctp_vrf *vrf = NULL;
 1324 
 1325         /*
 1326          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1327          * number of addresses that you COULD get. In reality the sub-set
 1328          * bound may have an exclusion list for a given TCB OR in the
 1329          * bound-all case a TCB may NOT include the loopback or other
 1330          * addresses as well.
 1331          */
 1332         vrf = sctp_find_vrf(vrf_id);
 1333         if (vrf == NULL) {
 1334                 return (0);
 1335         }
 1336         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1337                 struct sctp_ifn *sctp_ifn;
 1338                 struct sctp_ifa *sctp_ifa;
 1339 
 1340                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1341                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1342                                 /* Count them if they are the right type */
 1343                                 switch (sctp_ifa->address.sa.sa_family) {
 1344 #ifdef INET
 1345                                 case AF_INET:
 1346 #ifdef INET6
 1347                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1348                                                 cnt += sizeof(struct sockaddr_in6);
 1349                                         else
 1350                                                 cnt += sizeof(struct sockaddr_in);
 1351 #else
 1352                                         cnt += sizeof(struct sockaddr_in);
 1353 #endif
 1354                                         break;
 1355 #endif
 1356 #ifdef INET6
 1357                                 case AF_INET6:
 1358                                         cnt += sizeof(struct sockaddr_in6);
 1359                                         break;
 1360 #endif
 1361                                 default:
 1362                                         break;
 1363                                 }
 1364                         }
 1365                 }
 1366         } else {
 1367                 struct sctp_laddr *laddr;
 1368 
 1369                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1370                         switch (laddr->ifa->address.sa.sa_family) {
 1371 #ifdef INET
 1372                         case AF_INET:
 1373 #ifdef INET6
 1374                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1375                                         cnt += sizeof(struct sockaddr_in6);
 1376                                 else
 1377                                         cnt += sizeof(struct sockaddr_in);
 1378 #else
 1379                                 cnt += sizeof(struct sockaddr_in);
 1380 #endif
 1381                                 break;
 1382 #endif
 1383 #ifdef INET6
 1384                         case AF_INET6:
 1385                                 cnt += sizeof(struct sockaddr_in6);
 1386                                 break;
 1387 #endif
 1388                         default:
 1389                                 break;
 1390                         }
 1391                 }
 1392         }
 1393         return (cnt);
 1394 }
 1395 
 1396 static int
 1397 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1398 {
 1399         int cnt = 0;
 1400 
 1401         SCTP_IPI_ADDR_RLOCK();
 1402         /* count addresses for the endpoint's default VRF */
 1403         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1404         SCTP_IPI_ADDR_RUNLOCK();
 1405         return (cnt);
 1406 }
 1407 
 1408 static int
 1409 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1410     size_t optsize, void *p, int delay)
 1411 {
 1412         int error = 0;
 1413         int creat_lock_on = 0;
 1414         struct sctp_tcb *stcb = NULL;
 1415         struct sockaddr *sa;
 1416         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1417         uint32_t vrf_id;
 1418         int bad_addresses = 0;
 1419         sctp_assoc_t *a_id;
 1420 
 1421         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1422 
 1423         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1424             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1425                 /* We are already connected AND the TCP model */
 1426                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1427                 return (EADDRINUSE);
 1428         }
 1429         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1430             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1431                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1432                 return (EINVAL);
 1433         }
 1434         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1435                 SCTP_INP_RLOCK(inp);
 1436                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1437                 SCTP_INP_RUNLOCK(inp);
 1438         }
 1439         if (stcb) {
 1440                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1441                 return (EALREADY);
 1442         }
 1443         SCTP_INP_INCR_REF(inp);
 1444         SCTP_ASOC_CREATE_LOCK(inp);
 1445         creat_lock_on = 1;
 1446         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1447             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1448                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1449                 error = EFAULT;
 1450                 goto out_now;
 1451         }
 1452         totaddrp = (int *)optval;
 1453         totaddr = *totaddrp;
 1454         sa = (struct sockaddr *)(totaddrp + 1);
 1455         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
 1456         if ((stcb != NULL) || bad_addresses) {
 1457                 /* Already have or am bring up an association */
 1458                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1459                 creat_lock_on = 0;
 1460                 if (stcb)
 1461                         SCTP_TCB_UNLOCK(stcb);
 1462                 if (bad_addresses == 0) {
 1463                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1464                         error = EALREADY;
 1465                 }
 1466                 goto out_now;
 1467         }
 1468 #ifdef INET6
 1469         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1470             (num_v6 > 0)) {
 1471                 error = EINVAL;
 1472                 goto out_now;
 1473         }
 1474         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1475             (num_v4 > 0)) {
 1476                 struct in6pcb *inp6;
 1477 
 1478                 inp6 = (struct in6pcb *)inp;
 1479                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1480                         /*
 1481                          * if IPV6_V6ONLY flag, ignore connections destined
 1482                          * to a v4 addr or v4-mapped addr
 1483                          */
 1484                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1485                         error = EINVAL;
 1486                         goto out_now;
 1487                 }
 1488         }
 1489 #endif                          /* INET6 */
 1490         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1491             SCTP_PCB_FLAGS_UNBOUND) {
 1492                 /* Bind a ephemeral port */
 1493                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1494                 if (error) {
 1495                         goto out_now;
 1496                 }
 1497         }
 1498         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1499         vrf_id = inp->def_vrf_id;
 1500 
 1501 
 1502         /* We are GOOD to go */
 1503         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
 1504             inp->sctp_ep.pre_open_stream_count,
 1505             (struct thread *)p
 1506             );
 1507         if (stcb == NULL) {
 1508                 /* Gak! no memory */
 1509                 goto out_now;
 1510         }
 1511         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1512                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1513                 /* Set the connected flag so we can queue data */
 1514                 soisconnecting(so);
 1515         }
 1516         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 1517         /* move to second address */
 1518         switch (sa->sa_family) {
 1519 #ifdef INET
 1520         case AF_INET:
 1521                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1522                 break;
 1523 #endif
 1524 #ifdef INET6
 1525         case AF_INET6:
 1526                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1527                 break;
 1528 #endif
 1529         default:
 1530                 break;
 1531         }
 1532 
 1533         error = 0;
 1534         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1535         /* Fill in the return id */
 1536         if (error) {
 1537                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
 1538                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
 1539                 goto out_now;
 1540         }
 1541         a_id = (sctp_assoc_t *) optval;
 1542         *a_id = sctp_get_associd(stcb);
 1543 
 1544         /* initialize authentication parameters for the assoc */
 1545         sctp_initialize_auth_params(inp, stcb);
 1546 
 1547         if (delay) {
 1548                 /* doing delayed connection */
 1549                 stcb->asoc.delayed_connection = 1;
 1550                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1551         } else {
 1552                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1553                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1554         }
 1555         SCTP_TCB_UNLOCK(stcb);
 1556         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1557                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1558                 /* Set the connected flag so we can queue data */
 1559                 soisconnecting(so);
 1560         }
 1561 out_now:
 1562         if (creat_lock_on) {
 1563                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1564         }
 1565         SCTP_INP_DECR_REF(inp);
 1566         return (error);
 1567 }
 1568 
 1569 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1570         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1571             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1572                 SCTP_INP_RLOCK(inp); \
 1573                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1574                 if (stcb) { \
 1575                         SCTP_TCB_LOCK(stcb); \
 1576                 } \
 1577                 SCTP_INP_RUNLOCK(inp); \
 1578         } else if (assoc_id > SCTP_ALL_ASSOC) { \
 1579                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1580                 if (stcb == NULL) { \
 1581                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1582                         error = ENOENT; \
 1583                         break; \
 1584                 } \
 1585         } else { \
 1586                 stcb = NULL; \
 1587         } \
 1588   }
 1589 
 1590 
 1591 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
 1592         if (size < sizeof(type)) { \
 1593                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1594                 error = EINVAL; \
 1595                 break; \
 1596         } else { \
 1597                 destp = (type *)srcp; \
 1598         } \
 1599       }
 1600 
 1601 static int
 1602 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1603     void *p)
 1604 {
 1605         struct sctp_inpcb *inp = NULL;
 1606         int error, val = 0;
 1607         struct sctp_tcb *stcb = NULL;
 1608 
 1609         if (optval == NULL) {
 1610                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1611                 return (EINVAL);
 1612         }
 1613         inp = (struct sctp_inpcb *)so->so_pcb;
 1614         if (inp == NULL) {
 1615                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1616                 return EINVAL;
 1617         }
 1618         error = 0;
 1619 
 1620         switch (optname) {
 1621         case SCTP_NODELAY:
 1622         case SCTP_AUTOCLOSE:
 1623         case SCTP_EXPLICIT_EOR:
 1624         case SCTP_AUTO_ASCONF:
 1625         case SCTP_DISABLE_FRAGMENTS:
 1626         case SCTP_I_WANT_MAPPED_V4_ADDR:
 1627         case SCTP_USE_EXT_RCVINFO:
 1628                 SCTP_INP_RLOCK(inp);
 1629                 switch (optname) {
 1630                 case SCTP_DISABLE_FRAGMENTS:
 1631                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
 1632                         break;
 1633                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 1634                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
 1635                         break;
 1636                 case SCTP_AUTO_ASCONF:
 1637                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1638                                 /* only valid for bound all sockets */
 1639                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
 1640                         } else {
 1641                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1642                                 error = EINVAL;
 1643                                 goto flags_out;
 1644                         }
 1645                         break;
 1646                 case SCTP_EXPLICIT_EOR:
 1647                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
 1648                         break;
 1649                 case SCTP_NODELAY:
 1650                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
 1651                         break;
 1652                 case SCTP_USE_EXT_RCVINFO:
 1653                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
 1654                         break;
 1655                 case SCTP_AUTOCLOSE:
 1656                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
 1657                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
 1658                         else
 1659                                 val = 0;
 1660                         break;
 1661 
 1662                 default:
 1663                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1664                         error = ENOPROTOOPT;
 1665                 }               /* end switch (sopt->sopt_name) */
 1666                 if (*optsize < sizeof(val)) {
 1667                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1668                         error = EINVAL;
 1669                 }
 1670 flags_out:
 1671                 SCTP_INP_RUNLOCK(inp);
 1672                 if (error == 0) {
 1673                         /* return the option value */
 1674                         *(int *)optval = val;
 1675                         *optsize = sizeof(val);
 1676                 }
 1677                 break;
 1678         case SCTP_GET_PACKET_LOG:
 1679                 {
 1680 #ifdef  SCTP_PACKET_LOGGING
 1681                         uint8_t *target;
 1682                         int ret;
 1683 
 1684                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
 1685                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
 1686                         *optsize = ret;
 1687 #else
 1688                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1689                         error = EOPNOTSUPP;
 1690 #endif
 1691                         break;
 1692                 }
 1693         case SCTP_REUSE_PORT:
 1694                 {
 1695                         uint32_t *value;
 1696 
 1697                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 1698                                 /* Can't do this for a 1-m socket */
 1699                                 error = EINVAL;
 1700                                 break;
 1701                         }
 1702                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1703                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 1704                         *optsize = sizeof(uint32_t);
 1705                         break;
 1706                 }
 1707         case SCTP_PARTIAL_DELIVERY_POINT:
 1708                 {
 1709                         uint32_t *value;
 1710 
 1711                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1712                         *value = inp->partial_delivery_point;
 1713                         *optsize = sizeof(uint32_t);
 1714                         break;
 1715                 }
 1716         case SCTP_FRAGMENT_INTERLEAVE:
 1717                 {
 1718                         uint32_t *value;
 1719 
 1720                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1721                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
 1722                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
 1723                                         *value = SCTP_FRAG_LEVEL_2;
 1724                                 } else {
 1725                                         *value = SCTP_FRAG_LEVEL_1;
 1726                                 }
 1727                         } else {
 1728                                 *value = SCTP_FRAG_LEVEL_0;
 1729                         }
 1730                         *optsize = sizeof(uint32_t);
 1731                         break;
 1732                 }
 1733         case SCTP_CMT_ON_OFF:
 1734                 {
 1735                         struct sctp_assoc_value *av;
 1736 
 1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1739                         if (stcb) {
 1740                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1741                                 SCTP_TCB_UNLOCK(stcb);
 1742                         } else {
 1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1746                                         SCTP_INP_RLOCK(inp);
 1747                                         av->assoc_value = inp->sctp_cmt_on_off;
 1748                                         SCTP_INP_RUNLOCK(inp);
 1749                                 } else {
 1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1751                                         error = EINVAL;
 1752                                 }
 1753                         }
 1754                         if (error == 0) {
 1755                                 *optsize = sizeof(struct sctp_assoc_value);
 1756                         }
 1757                         break;
 1758                 }
 1759         case SCTP_PLUGGABLE_CC:
 1760                 {
 1761                         struct sctp_assoc_value *av;
 1762 
 1763                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1764                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1765                         if (stcb) {
 1766                                 av->assoc_value = stcb->asoc.congestion_control_module;
 1767                                 SCTP_TCB_UNLOCK(stcb);
 1768                         } else {
 1769                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1770                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1771                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1772                                         SCTP_INP_RLOCK(inp);
 1773                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
 1774                                         SCTP_INP_RUNLOCK(inp);
 1775                                 } else {
 1776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1777                                         error = EINVAL;
 1778                                 }
 1779                         }
 1780                         if (error == 0) {
 1781                                 *optsize = sizeof(struct sctp_assoc_value);
 1782                         }
 1783                         break;
 1784                 }
 1785         case SCTP_CC_OPTION:
 1786                 {
 1787                         struct sctp_cc_option *cc_opt;
 1788 
 1789                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
 1790                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 1791                         if (stcb == NULL) {
 1792                                 error = EINVAL;
 1793                         } else {
 1794                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 1795                                         error = ENOTSUP;
 1796                                 } else {
 1797                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
 1798                                         *optsize = sizeof(struct sctp_cc_option);
 1799                                 }
 1800                                 SCTP_TCB_UNLOCK(stcb);
 1801                         }
 1802                         break;
 1803                 }
 1804         case SCTP_PLUGGABLE_SS:
 1805                 {
 1806                         struct sctp_assoc_value *av;
 1807 
 1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1810                         if (stcb) {
 1811                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
 1812                                 SCTP_TCB_UNLOCK(stcb);
 1813                         } else {
 1814                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1815                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1816                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1817                                         SCTP_INP_RLOCK(inp);
 1818                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
 1819                                         SCTP_INP_RUNLOCK(inp);
 1820                                 } else {
 1821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1822                                         error = EINVAL;
 1823                                 }
 1824                         }
 1825                         if (error == 0) {
 1826                                 *optsize = sizeof(struct sctp_assoc_value);
 1827                         }
 1828                         break;
 1829                 }
 1830         case SCTP_SS_VALUE:
 1831                 {
 1832                         struct sctp_stream_value *av;
 1833 
 1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
 1835                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1836                         if (stcb) {
 1837                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 1838                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 1839                                     &av->stream_value) < 0)) {
 1840                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1841                                         error = EINVAL;
 1842                                 } else {
 1843                                         *optsize = sizeof(struct sctp_stream_value);
 1844                                 }
 1845                                 SCTP_TCB_UNLOCK(stcb);
 1846                         } else {
 1847                                 /*
 1848                                  * Can't get stream value without
 1849                                  * association
 1850                                  */
 1851                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1852                                 error = EINVAL;
 1853                         }
 1854                         break;
 1855                 }
 1856         case SCTP_GET_ADDR_LEN:
 1857                 {
 1858                         struct sctp_assoc_value *av;
 1859 
 1860                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1861                         error = EINVAL;
 1862 #ifdef INET
 1863                         if (av->assoc_value == AF_INET) {
 1864                                 av->assoc_value = sizeof(struct sockaddr_in);
 1865                                 error = 0;
 1866                         }
 1867 #endif
 1868 #ifdef INET6
 1869                         if (av->assoc_value == AF_INET6) {
 1870                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1871                                 error = 0;
 1872                         }
 1873 #endif
 1874                         if (error) {
 1875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1876                         } else {
 1877                                 *optsize = sizeof(struct sctp_assoc_value);
 1878                         }
 1879                         break;
 1880                 }
 1881         case SCTP_GET_ASSOC_NUMBER:
 1882                 {
 1883                         uint32_t *value, cnt;
 1884 
 1885                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1886                         SCTP_INP_RLOCK(inp);
 1887                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1888                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1889                                 /* Can't do this for a 1-1 socket */
 1890                                 error = EINVAL;
 1891                                 SCTP_INP_RUNLOCK(inp);
 1892                                 break;
 1893                         }
 1894                         cnt = 0;
 1895                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1896                                 cnt++;
 1897                         }
 1898                         SCTP_INP_RUNLOCK(inp);
 1899                         *value = cnt;
 1900                         *optsize = sizeof(uint32_t);
 1901                         break;
 1902                 }
 1903         case SCTP_GET_ASSOC_ID_LIST:
 1904                 {
 1905                         struct sctp_assoc_ids *ids;
 1906                         unsigned int at, limit;
 1907 
 1908                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1909                         SCTP_INP_RLOCK(inp);
 1910                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1911                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1912                                 /* Can't do this for a 1-1 socket */
 1913                                 error = EINVAL;
 1914                                 SCTP_INP_RUNLOCK(inp);
 1915                                 break;
 1916                         }
 1917                         at = 0;
 1918                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1919                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1920                                 if (at < limit) {
 1921                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1922                                 } else {
 1923                                         error = EINVAL;
 1924                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1925                                         break;
 1926                                 }
 1927                         }
 1928                         SCTP_INP_RUNLOCK(inp);
 1929                         if (error == 0) {
 1930                                 ids->gaids_number_of_ids = at;
 1931                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1932                         }
 1933                         break;
 1934                 }
 1935         case SCTP_CONTEXT:
 1936                 {
 1937                         struct sctp_assoc_value *av;
 1938 
 1939                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1940                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1941 
 1942                         if (stcb) {
 1943                                 av->assoc_value = stcb->asoc.context;
 1944                                 SCTP_TCB_UNLOCK(stcb);
 1945                         } else {
 1946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1948                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1949                                         SCTP_INP_RLOCK(inp);
 1950                                         av->assoc_value = inp->sctp_context;
 1951                                         SCTP_INP_RUNLOCK(inp);
 1952                                 } else {
 1953                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1954                                         error = EINVAL;
 1955                                 }
 1956                         }
 1957                         if (error == 0) {
 1958                                 *optsize = sizeof(struct sctp_assoc_value);
 1959                         }
 1960                         break;
 1961                 }
 1962         case SCTP_VRF_ID:
 1963                 {
 1964                         uint32_t *default_vrfid;
 1965 
 1966                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1967                         *default_vrfid = inp->def_vrf_id;
 1968                         *optsize = sizeof(uint32_t);
 1969                         break;
 1970                 }
 1971         case SCTP_GET_ASOC_VRF:
 1972                 {
 1973                         struct sctp_assoc_value *id;
 1974 
 1975                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1976                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1977                         if (stcb == NULL) {
 1978                                 error = EINVAL;
 1979                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1980                         } else {
 1981                                 id->assoc_value = stcb->asoc.vrf_id;
 1982                                 *optsize = sizeof(struct sctp_assoc_value);
 1983                         }
 1984                         break;
 1985                 }
 1986         case SCTP_GET_VRF_IDS:
 1987                 {
 1988                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1989                         error = EOPNOTSUPP;
 1990                         break;
 1991                 }
 1992         case SCTP_GET_NONCE_VALUES:
 1993                 {
 1994                         struct sctp_get_nonce_values *gnv;
 1995 
 1996                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 1997                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 1998 
 1999                         if (stcb) {
 2000                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 2001                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 2002                                 SCTP_TCB_UNLOCK(stcb);
 2003                                 *optsize = sizeof(struct sctp_get_nonce_values);
 2004                         } else {
 2005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2006                                 error = ENOTCONN;
 2007                         }
 2008                         break;
 2009                 }
 2010         case SCTP_DELAYED_SACK:
 2011                 {
 2012                         struct sctp_sack_info *sack;
 2013 
 2014                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 2015                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 2016                         if (stcb) {
 2017                                 sack->sack_delay = stcb->asoc.delayed_ack;
 2018                                 sack->sack_freq = stcb->asoc.sack_freq;
 2019                                 SCTP_TCB_UNLOCK(stcb);
 2020                         } else {
 2021                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2022                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2023                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
 2024                                         SCTP_INP_RLOCK(inp);
 2025                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 2026                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 2027                                         SCTP_INP_RUNLOCK(inp);
 2028                                 } else {
 2029                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2030                                         error = EINVAL;
 2031                                 }
 2032                         }
 2033                         if (error == 0) {
 2034                                 *optsize = sizeof(struct sctp_sack_info);
 2035                         }
 2036                         break;
 2037                 }
 2038         case SCTP_GET_SNDBUF_USE:
 2039                 {
 2040                         struct sctp_sockstat *ss;
 2041 
 2042                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 2043                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 2044 
 2045                         if (stcb) {
 2046                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 2047                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 2048                                     stcb->asoc.size_on_all_streams);
 2049                                 SCTP_TCB_UNLOCK(stcb);
 2050                                 *optsize = sizeof(struct sctp_sockstat);
 2051                         } else {
 2052                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2053                                 error = ENOTCONN;
 2054                         }
 2055                         break;
 2056                 }
 2057         case SCTP_MAX_BURST:
 2058                 {
 2059                         struct sctp_assoc_value *av;
 2060 
 2061                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2062                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2063 
 2064                         if (stcb) {
 2065                                 av->assoc_value = stcb->asoc.max_burst;
 2066                                 SCTP_TCB_UNLOCK(stcb);
 2067                         } else {
 2068                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2069                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2070                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2071                                         SCTP_INP_RLOCK(inp);
 2072                                         av->assoc_value = inp->sctp_ep.max_burst;
 2073                                         SCTP_INP_RUNLOCK(inp);
 2074                                 } else {
 2075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2076                                         error = EINVAL;
 2077                                 }
 2078                         }
 2079                         if (error == 0) {
 2080                                 *optsize = sizeof(struct sctp_assoc_value);
 2081                         }
 2082                         break;
 2083                 }
 2084         case SCTP_MAXSEG:
 2085                 {
 2086                         struct sctp_assoc_value *av;
 2087                         int ovh;
 2088 
 2089                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2090                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2091 
 2092                         if (stcb) {
 2093                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 2094                                 SCTP_TCB_UNLOCK(stcb);
 2095                         } else {
 2096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2097                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2098                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2099                                         SCTP_INP_RLOCK(inp);
 2100                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2101                                                 ovh = SCTP_MED_OVERHEAD;
 2102                                         } else {
 2103                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2104                                         }
 2105                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 2106                                                 av->assoc_value = 0;
 2107                                         else
 2108                                                 av->assoc_value = inp->sctp_frag_point - ovh;
 2109                                         SCTP_INP_RUNLOCK(inp);
 2110                                 } else {
 2111                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2112                                         error = EINVAL;
 2113                                 }
 2114                         }
 2115                         if (error == 0) {
 2116                                 *optsize = sizeof(struct sctp_assoc_value);
 2117                         }
 2118                         break;
 2119                 }
 2120         case SCTP_GET_STAT_LOG:
 2121                 error = sctp_fill_stat_log(optval, optsize);
 2122                 break;
 2123         case SCTP_EVENTS:
 2124                 {
 2125                         struct sctp_event_subscribe *events;
 2126 
 2127                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 2128                         memset(events, 0, sizeof(struct sctp_event_subscribe));
 2129                         SCTP_INP_RLOCK(inp);
 2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 2131                                 events->sctp_data_io_event = 1;
 2132 
 2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 2134                                 events->sctp_association_event = 1;
 2135 
 2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 2137                                 events->sctp_address_event = 1;
 2138 
 2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 2140                                 events->sctp_send_failure_event = 1;
 2141 
 2142                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 2143                                 events->sctp_peer_error_event = 1;
 2144 
 2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 2146                                 events->sctp_shutdown_event = 1;
 2147 
 2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 2149                                 events->sctp_partial_delivery_event = 1;
 2150 
 2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2152                                 events->sctp_adaptation_layer_event = 1;
 2153 
 2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2155                                 events->sctp_authentication_event = 1;
 2156 
 2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2158                                 events->sctp_sender_dry_event = 1;
 2159 
 2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2161                                 events->sctp_stream_reset_event = 1;
 2162                         SCTP_INP_RUNLOCK(inp);
 2163                         *optsize = sizeof(struct sctp_event_subscribe);
 2164                         break;
 2165                 }
 2166         case SCTP_ADAPTATION_LAYER:
 2167                 {
 2168                         uint32_t *value;
 2169 
 2170                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2171 
 2172                         SCTP_INP_RLOCK(inp);
 2173                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2174                         SCTP_INP_RUNLOCK(inp);
 2175                         *optsize = sizeof(uint32_t);
 2176                         break;
 2177                 }
 2178         case SCTP_SET_INITIAL_DBG_SEQ:
 2179                 {
 2180                         uint32_t *value;
 2181 
 2182                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2183                         SCTP_INP_RLOCK(inp);
 2184                         *value = inp->sctp_ep.initial_sequence_debug;
 2185                         SCTP_INP_RUNLOCK(inp);
 2186                         *optsize = sizeof(uint32_t);
 2187                         break;
 2188                 }
 2189         case SCTP_GET_LOCAL_ADDR_SIZE:
 2190                 {
 2191                         uint32_t *value;
 2192 
 2193                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2194                         SCTP_INP_RLOCK(inp);
 2195                         *value = sctp_count_max_addresses(inp);
 2196                         SCTP_INP_RUNLOCK(inp);
 2197                         *optsize = sizeof(uint32_t);
 2198                         break;
 2199                 }
 2200         case SCTP_GET_REMOTE_ADDR_SIZE:
 2201                 {
 2202                         uint32_t *value;
 2203                         size_t size;
 2204                         struct sctp_nets *net;
 2205 
 2206                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2207                         /* FIXME MT: change to sctp_assoc_value? */
 2208                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 2209 
 2210                         if (stcb) {
 2211                                 size = 0;
 2212                                 /* Count the sizes */
 2213                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2214                                         switch (net->ro._l_addr.sa.sa_family) {
 2215 #ifdef INET
 2216                                         case AF_INET:
 2217 #ifdef INET6
 2218                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2219                                                         size += sizeof(struct sockaddr_in6);
 2220                                                 } else {
 2221                                                         size += sizeof(struct sockaddr_in);
 2222                                                 }
 2223 #else
 2224                                                 size += sizeof(struct sockaddr_in);
 2225 #endif
 2226                                                 break;
 2227 #endif
 2228 #ifdef INET6
 2229                                         case AF_INET6:
 2230                                                 size += sizeof(struct sockaddr_in6);
 2231                                                 break;
 2232 #endif
 2233                                         default:
 2234                                                 break;
 2235                                         }
 2236                                 }
 2237                                 SCTP_TCB_UNLOCK(stcb);
 2238                                 *value = (uint32_t) size;
 2239                                 *optsize = sizeof(uint32_t);
 2240                         } else {
 2241                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2242                                 error = ENOTCONN;
 2243                         }
 2244                         break;
 2245                 }
 2246         case SCTP_GET_PEER_ADDRESSES:
 2247                 /*
 2248                  * Get the address information, an array is passed in to
 2249                  * fill up we pack it.
 2250                  */
 2251                 {
 2252                         size_t cpsz, left;
 2253                         struct sockaddr_storage *sas;
 2254                         struct sctp_nets *net;
 2255                         struct sctp_getaddresses *saddr;
 2256 
 2257                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2258                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2259 
 2260                         if (stcb) {
 2261                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
 2262                                 *optsize = sizeof(struct sctp_getaddresses);
 2263                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2264 
 2265                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2266                                         switch (net->ro._l_addr.sa.sa_family) {
 2267 #ifdef INET
 2268                                         case AF_INET:
 2269 #ifdef INET6
 2270                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2271                                                         cpsz = sizeof(struct sockaddr_in6);
 2272                                                 } else {
 2273                                                         cpsz = sizeof(struct sockaddr_in);
 2274                                                 }
 2275 #else
 2276                                                 cpsz = sizeof(struct sockaddr_in);
 2277 #endif
 2278                                                 break;
 2279 #endif
 2280 #ifdef INET6
 2281                                         case AF_INET6:
 2282                                                 cpsz = sizeof(struct sockaddr_in6);
 2283                                                 break;
 2284 #endif
 2285                                         default:
 2286                                                 cpsz = 0;
 2287                                                 break;
 2288                                         }
 2289                                         if (cpsz == 0) {
 2290                                                 break;
 2291                                         }
 2292                                         if (left < cpsz) {
 2293                                                 /* not enough room. */
 2294                                                 break;
 2295                                         }
 2296 #if defined(INET) && defined(INET6)
 2297                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2298                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
 2299                                                 /* Must map the address */
 2300                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
 2301                                                     (struct sockaddr_in6 *)sas);
 2302                                         } else {
 2303                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2304                                         }
 2305 #else
 2306                                         memcpy(sas, &net->ro._l_addr, cpsz);
 2307 #endif
 2308                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2309 
 2310                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2311                                         left -= cpsz;
 2312                                         *optsize += cpsz;
 2313                                 }
 2314                                 SCTP_TCB_UNLOCK(stcb);
 2315                         } else {
 2316                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2317                                 error = ENOENT;
 2318                         }
 2319                         break;
 2320                 }
 2321         case SCTP_GET_LOCAL_ADDRESSES:
 2322                 {
 2323                         size_t limit, actual;
 2324                         struct sockaddr_storage *sas;
 2325                         struct sctp_getaddresses *saddr;
 2326 
 2327                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2328                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2329 
 2330                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2331                         limit = *optsize - sizeof(sctp_assoc_t);
 2332                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2333                         if (stcb) {
 2334                                 SCTP_TCB_UNLOCK(stcb);
 2335                         }
 2336                         *optsize = sizeof(struct sockaddr_storage) + actual;
 2337                         break;
 2338                 }
 2339         case SCTP_PEER_ADDR_PARAMS:
 2340                 {
 2341                         struct sctp_paddrparams *paddrp;
 2342                         struct sctp_nets *net;
 2343                         struct sockaddr *addr;
 2344 
 2345 #if defined(INET) && defined(INET6)
 2346                         struct sockaddr_in sin_store;
 2347 
 2348 #endif
 2349 
 2350                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2351                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2352 
 2353 #if defined(INET) && defined(INET6)
 2354                         if (paddrp->spp_address.ss_family == AF_INET6) {
 2355                                 struct sockaddr_in6 *sin6;
 2356 
 2357                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 2358                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2359                                         in6_sin6_2_sin(&sin_store, sin6);
 2360                                         addr = (struct sockaddr *)&sin_store;
 2361                                 } else {
 2362                                         addr = (struct sockaddr *)&paddrp->spp_address;
 2363                                 }
 2364                         } else {
 2365                                 addr = (struct sockaddr *)&paddrp->spp_address;
 2366                         }
 2367 #else
 2368                         addr = (struct sockaddr *)&paddrp->spp_address;
 2369 #endif
 2370                         if (stcb != NULL) {
 2371                                 net = sctp_findnet(stcb, addr);
 2372                         } else {
 2373                                 /*
 2374                                  * We increment here since
 2375                                  * sctp_findassociation_ep_addr() wil do a
 2376                                  * decrement if it finds the stcb as long as
 2377                                  * the locked tcb (last argument) is NOT a
 2378                                  * TCB.. aka NULL.
 2379                                  */
 2380                                 net = NULL;
 2381                                 SCTP_INP_INCR_REF(inp);
 2382                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2383                                 if (stcb == NULL) {
 2384                                         SCTP_INP_DECR_REF(inp);
 2385                                 }
 2386                         }
 2387                         if ((stcb != NULL) && (net == NULL)) {
 2388 #ifdef INET
 2389                                 if (addr->sa_family == AF_INET) {
 2390                                         struct sockaddr_in *sin;
 2391 
 2392                                         sin = (struct sockaddr_in *)addr;
 2393                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 2394                                                 error = EINVAL;
 2395                                                 SCTP_TCB_UNLOCK(stcb);
 2396                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2397                                                 break;
 2398                                         }
 2399                                 } else
 2400 #endif
 2401 #ifdef INET6
 2402                                 if (addr->sa_family == AF_INET6) {
 2403                                         struct sockaddr_in6 *sin6;
 2404 
 2405                                         sin6 = (struct sockaddr_in6 *)addr;
 2406                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2407                                                 error = EINVAL;
 2408                                                 SCTP_TCB_UNLOCK(stcb);
 2409                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2410                                                 break;
 2411                                         }
 2412                                 } else
 2413 #endif
 2414                                 {
 2415                                         error = EAFNOSUPPORT;
 2416                                         SCTP_TCB_UNLOCK(stcb);
 2417                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2418                                         break;
 2419                                 }
 2420                         }
 2421                         if (stcb != NULL) {
 2422                                 /* Applies to the specific association */
 2423                                 paddrp->spp_flags = 0;
 2424                                 if (net != NULL) {
 2425                                         paddrp->spp_hbinterval = net->heart_beat_delay;
 2426                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2427                                         paddrp->spp_pathmtu = net->mtu;
 2428                                         switch (net->ro._l_addr.sa.sa_family) {
 2429 #ifdef INET
 2430                                         case AF_INET:
 2431                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
 2432                                                 break;
 2433 #endif
 2434 #ifdef INET6
 2435                                         case AF_INET6:
 2436                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
 2437                                                 break;
 2438 #endif
 2439                                         default:
 2440                                                 break;
 2441                                         }
 2442                                         /* get flags for HB */
 2443                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 2444                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2445                                         } else {
 2446                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2447                                         }
 2448                                         /* get flags for PMTU */
 2449                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 2450                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2451                                         } else {
 2452                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2453                                         }
 2454                                         if (net->dscp & 0x01) {
 2455                                                 paddrp->spp_dscp = net->dscp & 0xfc;
 2456                                                 paddrp->spp_flags |= SPP_DSCP;
 2457                                         }
 2458 #ifdef INET6
 2459                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
 2460                                             (net->flowlabel & 0x80000000)) {
 2461                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
 2462                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2463                                         }
 2464 #endif
 2465                                 } else {
 2466                                         /*
 2467                                          * No destination so return default
 2468                                          * value
 2469                                          */
 2470                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2471                                         paddrp->spp_pathmtu = 0;
 2472                                         if (stcb->asoc.default_dscp & 0x01) {
 2473                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
 2474                                                 paddrp->spp_flags |= SPP_DSCP;
 2475                                         }
 2476 #ifdef INET6
 2477                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
 2478                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
 2479                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2480                                         }
 2481 #endif
 2482                                         /* default settings should be these */
 2483                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2484                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2485                                         } else {
 2486                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2487                                         }
 2488                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2489                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2490                                         } else {
 2491                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2492                                         }
 2493                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2494                                 }
 2495                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2496                                 SCTP_TCB_UNLOCK(stcb);
 2497                         } else {
 2498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2500                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 2501                                         /* Use endpoint defaults */
 2502                                         SCTP_INP_RLOCK(inp);
 2503                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2504                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2505                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
 2506                                         /* get inp's default */
 2507                                         if (inp->sctp_ep.default_dscp & 0x01) {
 2508                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
 2509                                                 paddrp->spp_flags |= SPP_DSCP;
 2510                                         }
 2511 #ifdef INET6
 2512                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 2513                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
 2514                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
 2515                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2516                                         }
 2517 #endif
 2518                                         /* can't return this */
 2519                                         paddrp->spp_pathmtu = 0;
 2520 
 2521                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2522                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2523                                         } else {
 2524                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2525                                         }
 2526                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2527                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2528                                         } else {
 2529                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2530                                         }
 2531                                         SCTP_INP_RUNLOCK(inp);
 2532                                 } else {
 2533                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2534                                         error = EINVAL;
 2535                                 }
 2536                         }
 2537                         if (error == 0) {
 2538                                 *optsize = sizeof(struct sctp_paddrparams);
 2539                         }
 2540                         break;
 2541                 }
 2542         case SCTP_GET_PEER_ADDR_INFO:
 2543                 {
 2544                         struct sctp_paddrinfo *paddri;
 2545                         struct sctp_nets *net;
 2546                         struct sockaddr *addr;
 2547 
 2548 #if defined(INET) && defined(INET6)
 2549                         struct sockaddr_in sin_store;
 2550 
 2551 #endif
 2552 
 2553                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2554                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2555 
 2556 #if defined(INET) && defined(INET6)
 2557                         if (paddri->spinfo_address.ss_family == AF_INET6) {
 2558                                 struct sockaddr_in6 *sin6;
 2559 
 2560                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
 2561                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2562                                         in6_sin6_2_sin(&sin_store, sin6);
 2563                                         addr = (struct sockaddr *)&sin_store;
 2564                                 } else {
 2565                                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2566                                 }
 2567                         } else {
 2568                                 addr = (struct sockaddr *)&paddri->spinfo_address;
 2569                         }
 2570 #else
 2571                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2572 #endif
 2573                         if (stcb != NULL) {
 2574                                 net = sctp_findnet(stcb, addr);
 2575                         } else {
 2576                                 /*
 2577                                  * We increment here since
 2578                                  * sctp_findassociation_ep_addr() wil do a
 2579                                  * decrement if it finds the stcb as long as
 2580                                  * the locked tcb (last argument) is NOT a
 2581                                  * TCB.. aka NULL.
 2582                                  */
 2583                                 net = NULL;
 2584                                 SCTP_INP_INCR_REF(inp);
 2585                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2586                                 if (stcb == NULL) {
 2587                                         SCTP_INP_DECR_REF(inp);
 2588                                 }
 2589                         }
 2590 
 2591                         if ((stcb != NULL) && (net != NULL)) {
 2592                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2593                                         /* It's unconfirmed */
 2594                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
 2595                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2596                                         /* It's active */
 2597                                         paddri->spinfo_state = SCTP_ACTIVE;
 2598                                 } else {
 2599                                         /* It's inactive */
 2600                                         paddri->spinfo_state = SCTP_INACTIVE;
 2601                                 }
 2602                                 paddri->spinfo_cwnd = net->cwnd;
 2603                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2604                                 paddri->spinfo_rto = net->RTO;
 2605                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2606                                 paddri->spinfo_mtu = net->mtu;
 2607                                 switch (addr->sa_family) {
 2608 #if defined(INET)
 2609                                 case AF_INET:
 2610                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2611                                         break;
 2612 #endif
 2613 #if defined(INET6)
 2614                                 case AF_INET6:
 2615                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2616                                         break;
 2617 #endif
 2618                                 default:
 2619                                         break;
 2620                                 }
 2621                                 SCTP_TCB_UNLOCK(stcb);
 2622                                 *optsize = sizeof(struct sctp_paddrinfo);
 2623                         } else {
 2624                                 if (stcb != NULL) {
 2625                                         SCTP_TCB_UNLOCK(stcb);
 2626                                 }
 2627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2628                                 error = ENOENT;
 2629                         }
 2630                         break;
 2631                 }
 2632         case SCTP_PCB_STATUS:
 2633                 {
 2634                         struct sctp_pcbinfo *spcb;
 2635 
 2636                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2637                         sctp_fill_pcbinfo(spcb);
 2638                         *optsize = sizeof(struct sctp_pcbinfo);
 2639                         break;
 2640                 }
 2641         case SCTP_STATUS:
 2642                 {
 2643                         struct sctp_nets *net;
 2644                         struct sctp_status *sstat;
 2645 
 2646                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2647                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2648 
 2649                         if (stcb == NULL) {
 2650                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2651                                 error = EINVAL;
 2652                                 break;
 2653                         }
 2654                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
 2655                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2656                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2657                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2658                         /*
 2659                          * We can't include chunks that have been passed to
 2660                          * the socket layer. Only things in queue.
 2661                          */
 2662                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2663                             stcb->asoc.cnt_on_all_streams);
 2664 
 2665 
 2666                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2667                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2668                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2669                         memcpy(&sstat->sstat_primary.spinfo_address,
 2670                             &stcb->asoc.primary_destination->ro._l_addr,
 2671                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2672                         net = stcb->asoc.primary_destination;
 2673                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2674                         /*
 2675                          * Again the user can get info from sctp_constants.h
 2676                          * for what the state of the network is.
 2677                          */
 2678                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2679                                 /* It's unconfirmed */
 2680                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
 2681                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2682                                 /* It's active */
 2683                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
 2684                         } else {
 2685                                 /* It's inactive */
 2686                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
 2687                         }
 2688                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2689                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2690                         sstat->sstat_primary.spinfo_rto = net->RTO;
 2691                         sstat->sstat_primary.spinfo_mtu = net->mtu;
 2692                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
 2693 #if defined(INET)
 2694                         case AF_INET:
 2695                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2696                                 break;
 2697 #endif
 2698 #if defined(INET6)
 2699                         case AF_INET6:
 2700                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2701                                 break;
 2702 #endif
 2703                         default:
 2704                                 break;
 2705                         }
 2706                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2707                         SCTP_TCB_UNLOCK(stcb);
 2708                         *optsize = sizeof(struct sctp_status);
 2709                         break;
 2710                 }
 2711         case SCTP_RTOINFO:
 2712                 {
 2713                         struct sctp_rtoinfo *srto;
 2714 
 2715                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2716                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2717 
 2718                         if (stcb) {
 2719                                 srto->srto_initial = stcb->asoc.initial_rto;
 2720                                 srto->srto_max = stcb->asoc.maxrto;
 2721                                 srto->srto_min = stcb->asoc.minrto;
 2722                                 SCTP_TCB_UNLOCK(stcb);
 2723                         } else {
 2724                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2725                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2726                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 2727                                         SCTP_INP_RLOCK(inp);
 2728                                         srto->srto_initial = inp->sctp_ep.initial_rto;
 2729                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2730                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
 2731                                         SCTP_INP_RUNLOCK(inp);
 2732                                 } else {
 2733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2734                                         error = EINVAL;
 2735                                 }
 2736                         }
 2737                         if (error == 0) {
 2738                                 *optsize = sizeof(struct sctp_rtoinfo);
 2739                         }
 2740                         break;
 2741                 }
 2742         case SCTP_TIMEOUTS:
 2743                 {
 2744                         struct sctp_timeouts *stimo;
 2745 
 2746                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
 2747                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
 2748 
 2749                         if (stcb) {
 2750                                 stimo->stimo_init = stcb->asoc.timoinit;
 2751                                 stimo->stimo_data = stcb->asoc.timodata;
 2752                                 stimo->stimo_sack = stcb->asoc.timosack;
 2753                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
 2754                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
 2755                                 stimo->stimo_cookie = stcb->asoc.timocookie;
 2756                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
 2757                                 SCTP_TCB_UNLOCK(stcb);
 2758                                 *optsize = sizeof(struct sctp_timeouts);
 2759                         } else {
 2760                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2761                                 error = EINVAL;
 2762                         }
 2763                         break;
 2764                 }
 2765         case SCTP_ASSOCINFO:
 2766                 {
 2767                         struct sctp_assocparams *sasoc;
 2768 
 2769                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2770                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2771 
 2772                         if (stcb) {
 2773                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2774                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2775                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2776                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2777                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2778                                 SCTP_TCB_UNLOCK(stcb);
 2779                         } else {
 2780                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2781                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2782                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 2783                                         SCTP_INP_RLOCK(inp);
 2784                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2785                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2786                                         sasoc->sasoc_number_peer_destinations = 0;
 2787                                         sasoc->sasoc_peer_rwnd = 0;
 2788                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2789                                         SCTP_INP_RUNLOCK(inp);
 2790                                 } else {
 2791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2792                                         error = EINVAL;
 2793                                 }
 2794                         }
 2795                         if (error == 0) {
 2796                                 *optsize = sizeof(struct sctp_assocparams);
 2797                         }
 2798                         break;
 2799                 }
 2800         case SCTP_DEFAULT_SEND_PARAM:
 2801                 {
 2802                         struct sctp_sndrcvinfo *s_info;
 2803 
 2804                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2805                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2806 
 2807                         if (stcb) {
 2808                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2809                                 SCTP_TCB_UNLOCK(stcb);
 2810                         } else {
 2811                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2812                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2813                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
 2814                                         SCTP_INP_RLOCK(inp);
 2815                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2816                                         SCTP_INP_RUNLOCK(inp);
 2817                                 } else {
 2818                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2819                                         error = EINVAL;
 2820                                 }
 2821                         }
 2822                         if (error == 0) {
 2823                                 *optsize = sizeof(struct sctp_sndrcvinfo);
 2824                         }
 2825                         break;
 2826                 }
 2827         case SCTP_INITMSG:
 2828                 {
 2829                         struct sctp_initmsg *sinit;
 2830 
 2831                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2832                         SCTP_INP_RLOCK(inp);
 2833                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2834                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2835                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2836                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2837                         SCTP_INP_RUNLOCK(inp);
 2838                         *optsize = sizeof(struct sctp_initmsg);
 2839                         break;
 2840                 }
 2841         case SCTP_PRIMARY_ADDR:
 2842                 /* we allow a "get" operation on this */
 2843                 {
 2844                         struct sctp_setprim *ssp;
 2845 
 2846                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2847                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2848 
 2849                         if (stcb) {
 2850                                 union sctp_sockstore *addr;
 2851 
 2852                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
 2853                                 switch (addr->sa.sa_family) {
 2854 #ifdef INET
 2855                                 case AF_INET:
 2856 #ifdef INET6
 2857                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2858                                                 in6_sin_2_v4mapsin6(&addr->sin,
 2859                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
 2860                                         } else {
 2861                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2862                                         }
 2863 #else
 2864                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2865 #endif
 2866                                         break;
 2867 #endif
 2868 #ifdef INET6
 2869                                 case AF_INET6:
 2870                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
 2871                                         break;
 2872 #endif
 2873                                 default:
 2874                                         break;
 2875                                 }
 2876                                 SCTP_TCB_UNLOCK(stcb);
 2877                                 *optsize = sizeof(struct sctp_setprim);
 2878                         } else {
 2879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2880                                 error = EINVAL;
 2881                         }
 2882                         break;
 2883                 }
 2884         case SCTP_HMAC_IDENT:
 2885                 {
 2886                         struct sctp_hmacalgo *shmac;
 2887                         sctp_hmaclist_t *hmaclist;
 2888                         uint32_t size;
 2889                         int i;
 2890 
 2891                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2892 
 2893                         SCTP_INP_RLOCK(inp);
 2894                         hmaclist = inp->sctp_ep.local_hmacs;
 2895                         if (hmaclist == NULL) {
 2896                                 /* no HMACs to return */
 2897                                 *optsize = sizeof(*shmac);
 2898                                 SCTP_INP_RUNLOCK(inp);
 2899                                 break;
 2900                         }
 2901                         /* is there room for all of the hmac ids? */
 2902                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2903                             sizeof(shmac->shmac_idents[0]));
 2904                         if ((size_t)(*optsize) < size) {
 2905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2906                                 error = EINVAL;
 2907                                 SCTP_INP_RUNLOCK(inp);
 2908                                 break;
 2909                         }
 2910                         /* copy in the list */
 2911                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2912                         for (i = 0; i < hmaclist->num_algo; i++) {
 2913                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2914                         }
 2915                         SCTP_INP_RUNLOCK(inp);
 2916                         *optsize = size;
 2917                         break;
 2918                 }
 2919         case SCTP_AUTH_ACTIVE_KEY:
 2920                 {
 2921                         struct sctp_authkeyid *scact;
 2922 
 2923                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2924                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2925 
 2926                         if (stcb) {
 2927                                 /* get the active key on the assoc */
 2928                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2929                                 SCTP_TCB_UNLOCK(stcb);
 2930                         } else {
 2931                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2932                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2933                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
 2934                                         /* get the endpoint active key */
 2935                                         SCTP_INP_RLOCK(inp);
 2936                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2937                                         SCTP_INP_RUNLOCK(inp);
 2938                                 } else {
 2939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2940                                         error = EINVAL;
 2941                                 }
 2942                         }
 2943                         if (error == 0) {
 2944                                 *optsize = sizeof(struct sctp_authkeyid);
 2945                         }
 2946                         break;
 2947                 }
 2948         case SCTP_LOCAL_AUTH_CHUNKS:
 2949                 {
 2950                         struct sctp_authchunks *sac;
 2951                         sctp_auth_chklist_t *chklist = NULL;
 2952                         size_t size = 0;
 2953 
 2954                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2955                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2956 
 2957                         if (stcb) {
 2958                                 /* get off the assoc */
 2959                                 chklist = stcb->asoc.local_auth_chunks;
 2960                                 /* is there enough space? */
 2961                                 size = sctp_auth_get_chklist_size(chklist);
 2962                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2963                                         error = EINVAL;
 2964                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2965                                 } else {
 2966                                         /* copy in the chunks */
 2967                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2968                                         sac->gauth_number_of_chunks = (uint32_t) size;
 2969                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2970                                 }
 2971                                 SCTP_TCB_UNLOCK(stcb);
 2972                         } else {
 2973                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2974                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2975                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
 2976                                         /* get off the endpoint */
 2977                                         SCTP_INP_RLOCK(inp);
 2978                                         chklist = inp->sctp_ep.local_auth_chunks;
 2979                                         /* is there enough space? */
 2980                                         size = sctp_auth_get_chklist_size(chklist);
 2981                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2982                                                 error = EINVAL;
 2983                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2984                                         } else {
 2985                                                 /* copy in the chunks */
 2986                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2987                                                 sac->gauth_number_of_chunks = (uint32_t) size;
 2988                                                 *optsize = sizeof(struct sctp_authchunks) + size;
 2989                                         }
 2990                                         SCTP_INP_RUNLOCK(inp);
 2991                                 } else {
 2992                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2993                                         error = EINVAL;
 2994                                 }
 2995                         }
 2996                         break;
 2997                 }
 2998         case SCTP_PEER_AUTH_CHUNKS:
 2999                 {
 3000                         struct sctp_authchunks *sac;
 3001                         sctp_auth_chklist_t *chklist = NULL;
 3002                         size_t size = 0;
 3003 
 3004                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 3005                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 3006 
 3007                         if (stcb) {
 3008                                 /* get off the assoc */
 3009                                 chklist = stcb->asoc.peer_auth_chunks;
 3010                                 /* is there enough space? */
 3011                                 size = sctp_auth_get_chklist_size(chklist);
 3012                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 3013                                         error = EINVAL;
 3014                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3015                                 } else {
 3016                                         /* copy in the chunks */
 3017                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 3018                                         sac->gauth_number_of_chunks = (uint32_t) size;
 3019                                         *optsize = sizeof(struct sctp_authchunks) + size;
 3020                                 }
 3021                                 SCTP_TCB_UNLOCK(stcb);
 3022                         } else {
 3023                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 3024                                 error = ENOENT;
 3025                         }
 3026                         break;
 3027                 }
 3028         case SCTP_EVENT:
 3029                 {
 3030                         struct sctp_event *event;
 3031                         uint32_t event_type;
 3032 
 3033                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
 3034                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 3035 
 3036                         switch (event->se_type) {
 3037                         case SCTP_ASSOC_CHANGE:
 3038                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 3039                                 break;
 3040                         case SCTP_PEER_ADDR_CHANGE:
 3041                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 3042                                 break;
 3043                         case SCTP_REMOTE_ERROR:
 3044                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 3045                                 break;
 3046                         case SCTP_SEND_FAILED:
 3047                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 3048                                 break;
 3049                         case SCTP_SHUTDOWN_EVENT:
 3050                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 3051                                 break;
 3052                         case SCTP_ADAPTATION_INDICATION:
 3053                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 3054                                 break;
 3055                         case SCTP_PARTIAL_DELIVERY_EVENT:
 3056                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 3057                                 break;
 3058                         case SCTP_AUTHENTICATION_EVENT:
 3059                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 3060                                 break;
 3061                         case SCTP_STREAM_RESET_EVENT:
 3062                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 3063                                 break;
 3064                         case SCTP_SENDER_DRY_EVENT:
 3065                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 3066                                 break;
 3067                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 3068                                 event_type = 0;
 3069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 3070                                 error = ENOTSUP;
 3071                                 break;
 3072                         case SCTP_ASSOC_RESET_EVENT:
 3073                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 3074                                 break;
 3075                         case SCTP_STREAM_CHANGE_EVENT:
 3076                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 3077                                 break;
 3078                         case SCTP_SEND_FAILED_EVENT:
 3079                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 3080                                 break;
 3081                         default:
 3082                                 event_type = 0;
 3083                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3084                                 error = EINVAL;
 3085                                 break;
 3086                         }
 3087                         if (event_type > 0) {
 3088                                 if (stcb) {
 3089                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
 3090                                         SCTP_TCB_UNLOCK(stcb);
 3091                                 } else {
 3092                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3093                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3094                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
 3095                                                 SCTP_INP_RLOCK(inp);
 3096                                                 event->se_on = sctp_is_feature_on(inp, event_type);
 3097                                                 SCTP_INP_RUNLOCK(inp);
 3098                                         } else {
 3099                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3100                                                 error = EINVAL;
 3101                                         }
 3102                                 }
 3103                         }
 3104                         if (error == 0) {
 3105                                 *optsize = sizeof(struct sctp_event);
 3106                         }
 3107                         break;
 3108                 }
 3109         case SCTP_RECVRCVINFO:
 3110                 {
 3111                         int onoff;
 3112 
 3113                         if (*optsize < sizeof(int)) {
 3114                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3115                                 error = EINVAL;
 3116                         } else {
 3117                                 SCTP_INP_RLOCK(inp);
 3118                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 3119                                 SCTP_INP_RUNLOCK(inp);
 3120                         }
 3121                         if (error == 0) {
 3122                                 /* return the option value */
 3123                                 *(int *)optval = onoff;
 3124                                 *optsize = sizeof(int);
 3125                         }
 3126                         break;
 3127                 }
 3128         case SCTP_RECVNXTINFO:
 3129                 {
 3130                         int onoff;
 3131 
 3132                         if (*optsize < sizeof(int)) {
 3133                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3134                                 error = EINVAL;
 3135                         } else {
 3136                                 SCTP_INP_RLOCK(inp);
 3137                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 3138                                 SCTP_INP_RUNLOCK(inp);
 3139                         }
 3140                         if (error == 0) {
 3141                                 /* return the option value */
 3142                                 *(int *)optval = onoff;
 3143                                 *optsize = sizeof(int);
 3144                         }
 3145                         break;
 3146                 }
 3147         case SCTP_DEFAULT_SNDINFO:
 3148                 {
 3149                         struct sctp_sndinfo *info;
 3150 
 3151                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
 3152                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 3153 
 3154                         if (stcb) {
 3155                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
 3156                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
 3157                                 info->snd_flags &= 0xfff0;
 3158                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
 3159                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
 3160                                 SCTP_TCB_UNLOCK(stcb);
 3161                         } else {
 3162                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3163                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3164                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
 3165                                         SCTP_INP_RLOCK(inp);
 3166                                         info->snd_sid = inp->def_send.sinfo_stream;
 3167                                         info->snd_flags = inp->def_send.sinfo_flags;
 3168                                         info->snd_flags &= 0xfff0;
 3169                                         info->snd_ppid = inp->def_send.sinfo_ppid;
 3170                                         info->snd_context = inp->def_send.sinfo_context;
 3171                                         SCTP_INP_RUNLOCK(inp);
 3172                                 } else {
 3173                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3174                                         error = EINVAL;
 3175                                 }
 3176                         }
 3177                         if (error == 0) {
 3178                                 *optsize = sizeof(struct sctp_sndinfo);
 3179                         }
 3180                         break;
 3181                 }
 3182         case SCTP_DEFAULT_PRINFO:
 3183                 {
 3184                         struct sctp_default_prinfo *info;
 3185 
 3186                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
 3187                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 3188 
 3189                         if (stcb) {
 3190                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 3191                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
 3192                                 SCTP_TCB_UNLOCK(stcb);
 3193                         } else {
 3194                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3195                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3196                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
 3197                                         SCTP_INP_RLOCK(inp);
 3198                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 3199                                         info->pr_value = inp->def_send.sinfo_timetolive;
 3200                                         SCTP_INP_RUNLOCK(inp);
 3201                                 } else {
 3202                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3203                                         error = EINVAL;
 3204                                 }
 3205                         }
 3206                         if (error == 0) {
 3207                                 *optsize = sizeof(struct sctp_default_prinfo);
 3208                         }
 3209                         break;
 3210                 }
 3211         case SCTP_PEER_ADDR_THLDS:
 3212                 {
 3213                         struct sctp_paddrthlds *thlds;
 3214                         struct sctp_nets *net;
 3215                         struct sockaddr *addr;
 3216 
 3217 #if defined(INET) && defined(INET6)
 3218                         struct sockaddr_in sin_store;
 3219 
 3220 #endif
 3221 
 3222                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 3223                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 3224 
 3225 #if defined(INET) && defined(INET6)
 3226                         if (thlds->spt_address.ss_family == AF_INET6) {
 3227                                 struct sockaddr_in6 *sin6;
 3228 
 3229                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
 3230                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3231                                         in6_sin6_2_sin(&sin_store, sin6);
 3232                                         addr = (struct sockaddr *)&sin_store;
 3233                                 } else {
 3234                                         addr = (struct sockaddr *)&thlds->spt_address;
 3235                                 }
 3236                         } else {
 3237                                 addr = (struct sockaddr *)&thlds->spt_address;
 3238                         }
 3239 #else
 3240                         addr = (struct sockaddr *)&thlds->spt_address;
 3241 #endif
 3242                         if (stcb != NULL) {
 3243                                 net = sctp_findnet(stcb, addr);
 3244                         } else {
 3245                                 /*
 3246                                  * We increment here since
 3247                                  * sctp_findassociation_ep_addr() wil do a
 3248                                  * decrement if it finds the stcb as long as
 3249                                  * the locked tcb (last argument) is NOT a
 3250                                  * TCB.. aka NULL.
 3251                                  */
 3252                                 net = NULL;
 3253                                 SCTP_INP_INCR_REF(inp);
 3254                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3255                                 if (stcb == NULL) {
 3256                                         SCTP_INP_DECR_REF(inp);
 3257                                 }
 3258                         }
 3259                         if ((stcb != NULL) && (net == NULL)) {
 3260 #ifdef INET
 3261                                 if (addr->sa_family == AF_INET) {
 3262                                         struct sockaddr_in *sin;
 3263 
 3264                                         sin = (struct sockaddr_in *)addr;
 3265                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3266                                                 error = EINVAL;
 3267                                                 SCTP_TCB_UNLOCK(stcb);
 3268                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3269                                                 break;
 3270                                         }
 3271                                 } else
 3272 #endif
 3273 #ifdef INET6
 3274                                 if (addr->sa_family == AF_INET6) {
 3275                                         struct sockaddr_in6 *sin6;
 3276 
 3277                                         sin6 = (struct sockaddr_in6 *)addr;
 3278                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3279                                                 error = EINVAL;
 3280                                                 SCTP_TCB_UNLOCK(stcb);
 3281                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3282                                                 break;
 3283                                         }
 3284                                 } else
 3285 #endif
 3286                                 {
 3287                                         error = EAFNOSUPPORT;
 3288                                         SCTP_TCB_UNLOCK(stcb);
 3289                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3290                                         break;
 3291                                 }
 3292                         }
 3293                         if (stcb != NULL) {
 3294                                 if (net != NULL) {
 3295                                         thlds->spt_pathmaxrxt = net->failure_threshold;
 3296                                         thlds->spt_pathpfthld = net->pf_threshold;
 3297                                 } else {
 3298                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 3299                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 3300                                 }
 3301                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
 3302                                 SCTP_TCB_UNLOCK(stcb);
 3303                         } else {
 3304                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3305                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3306                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 3307                                         /* Use endpoint defaults */
 3308                                         SCTP_INP_RLOCK(inp);
 3309                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
 3310                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
 3311                                         SCTP_INP_RUNLOCK(inp);
 3312                                 } else {
 3313                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3314                                         error = EINVAL;
 3315                                 }
 3316                         }
 3317                         if (error == 0) {
 3318                                 *optsize = sizeof(struct sctp_paddrthlds);
 3319                         }
 3320                         break;
 3321                 }
 3322         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 3323                 {
 3324                         struct sctp_udpencaps *encaps;
 3325                         struct sctp_nets *net;
 3326                         struct sockaddr *addr;
 3327 
 3328 #if defined(INET) && defined(INET6)
 3329                         struct sockaddr_in sin_store;
 3330 
 3331 #endif
 3332 
 3333                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 3334                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 3335 
 3336 #if defined(INET) && defined(INET6)
 3337                         if (encaps->sue_address.ss_family == AF_INET6) {
 3338                                 struct sockaddr_in6 *sin6;
 3339 
 3340                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
 3341                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3342                                         in6_sin6_2_sin(&sin_store, sin6);
 3343                                         addr = (struct sockaddr *)&sin_store;
 3344                                 } else {
 3345                                         addr = (struct sockaddr *)&encaps->sue_address;
 3346                                 }
 3347                         } else {
 3348                                 addr = (struct sockaddr *)&encaps->sue_address;
 3349                         }
 3350 #else
 3351                         addr = (struct sockaddr *)&encaps->sue_address;
 3352 #endif
 3353                         if (stcb) {
 3354                                 net = sctp_findnet(stcb, addr);
 3355                         } else {
 3356                                 /*
 3357                                  * We increment here since
 3358                                  * sctp_findassociation_ep_addr() wil do a
 3359                                  * decrement if it finds the stcb as long as
 3360                                  * the locked tcb (last argument) is NOT a
 3361                                  * TCB.. aka NULL.
 3362                                  */
 3363                                 net = NULL;
 3364                                 SCTP_INP_INCR_REF(inp);
 3365                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3366                                 if (stcb == NULL) {
 3367                                         SCTP_INP_DECR_REF(inp);
 3368                                 }
 3369                         }
 3370                         if ((stcb != NULL) && (net == NULL)) {
 3371 #ifdef INET
 3372                                 if (addr->sa_family == AF_INET) {
 3373                                         struct sockaddr_in *sin;
 3374 
 3375                                         sin = (struct sockaddr_in *)addr;
 3376                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3377                                                 error = EINVAL;
 3378                                                 SCTP_TCB_UNLOCK(stcb);
 3379                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3380                                                 break;
 3381                                         }
 3382                                 } else
 3383 #endif
 3384 #ifdef INET6
 3385                                 if (addr->sa_family == AF_INET6) {
 3386                                         struct sockaddr_in6 *sin6;
 3387 
 3388                                         sin6 = (struct sockaddr_in6 *)addr;
 3389                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3390                                                 error = EINVAL;
 3391                                                 SCTP_TCB_UNLOCK(stcb);
 3392                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3393                                                 break;
 3394                                         }
 3395                                 } else
 3396 #endif
 3397                                 {
 3398                                         error = EAFNOSUPPORT;
 3399                                         SCTP_TCB_UNLOCK(stcb);
 3400                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3401                                         break;
 3402                                 }
 3403                         }
 3404                         if (stcb != NULL) {
 3405                                 if (net) {
 3406                                         encaps->sue_port = net->port;
 3407                                 } else {
 3408                                         encaps->sue_port = stcb->asoc.port;
 3409                                 }
 3410                                 SCTP_TCB_UNLOCK(stcb);
 3411                         } else {
 3412                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3413                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3414                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 3415                                         SCTP_INP_RLOCK(inp);
 3416                                         encaps->sue_port = inp->sctp_ep.port;
 3417                                         SCTP_INP_RUNLOCK(inp);
 3418                                 } else {
 3419                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3420                                         error = EINVAL;
 3421                                 }
 3422                         }
 3423                         if (error == 0) {
 3424                                 *optsize = sizeof(struct sctp_udpencaps);
 3425                         }
 3426                         break;
 3427                 }
 3428         case SCTP_ECN_SUPPORTED:
 3429                 {
 3430                         struct sctp_assoc_value *av;
 3431 
 3432                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3433                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3434 
 3435                         if (stcb) {
 3436                                 av->assoc_value = stcb->asoc.ecn_supported;
 3437                                 SCTP_TCB_UNLOCK(stcb);
 3438                         } else {
 3439                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3440                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3441                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3442                                         SCTP_INP_RLOCK(inp);
 3443                                         av->assoc_value = inp->ecn_supported;
 3444                                         SCTP_INP_RUNLOCK(inp);
 3445                                 } else {
 3446                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3447                                         error = EINVAL;
 3448                                 }
 3449                         }
 3450                         if (error == 0) {
 3451                                 *optsize = sizeof(struct sctp_assoc_value);
 3452                         }
 3453                         break;
 3454                 }
 3455         case SCTP_PR_SUPPORTED:
 3456                 {
 3457                         struct sctp_assoc_value *av;
 3458 
 3459                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3460                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3461 
 3462                         if (stcb) {
 3463                                 av->assoc_value = stcb->asoc.prsctp_supported;
 3464                                 SCTP_TCB_UNLOCK(stcb);
 3465                         } else {
 3466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3468                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3469                                         SCTP_INP_RLOCK(inp);
 3470                                         av->assoc_value = inp->prsctp_supported;
 3471                                         SCTP_INP_RUNLOCK(inp);
 3472                                 } else {
 3473                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3474                                         error = EINVAL;
 3475                                 }
 3476                         }
 3477                         if (error == 0) {
 3478                                 *optsize = sizeof(struct sctp_assoc_value);
 3479                         }
 3480                         break;
 3481                 }
 3482         case SCTP_AUTH_SUPPORTED:
 3483                 {
 3484                         struct sctp_assoc_value *av;
 3485 
 3486                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3487                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3488 
 3489                         if (stcb) {
 3490                                 av->assoc_value = stcb->asoc.auth_supported;
 3491                                 SCTP_TCB_UNLOCK(stcb);
 3492                         } else {
 3493                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3494                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3495                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3496                                         SCTP_INP_RLOCK(inp);
 3497                                         av->assoc_value = inp->auth_supported;
 3498                                         SCTP_INP_RUNLOCK(inp);
 3499                                 } else {
 3500                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3501                                         error = EINVAL;
 3502                                 }
 3503                         }
 3504                         if (error == 0) {
 3505                                 *optsize = sizeof(struct sctp_assoc_value);
 3506                         }
 3507                         break;
 3508                 }
 3509         case SCTP_ASCONF_SUPPORTED:
 3510                 {
 3511                         struct sctp_assoc_value *av;
 3512 
 3513                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3514                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3515 
 3516                         if (stcb) {
 3517                                 av->assoc_value = stcb->asoc.asconf_supported;
 3518                                 SCTP_TCB_UNLOCK(stcb);
 3519                         } else {
 3520                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3521                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3522                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3523                                         SCTP_INP_RLOCK(inp);
 3524                                         av->assoc_value = inp->asconf_supported;
 3525                                         SCTP_INP_RUNLOCK(inp);
 3526                                 } else {
 3527                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3528                                         error = EINVAL;
 3529                                 }
 3530                         }
 3531                         if (error == 0) {
 3532                                 *optsize = sizeof(struct sctp_assoc_value);
 3533                         }
 3534                         break;
 3535                 }
 3536         case SCTP_RECONFIG_SUPPORTED:
 3537                 {
 3538                         struct sctp_assoc_value *av;
 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 (stcb) {
 3544                                 av->assoc_value = stcb->asoc.reconfig_supported;
 3545                                 SCTP_TCB_UNLOCK(stcb);
 3546                         } else {
 3547                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3548                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3549                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3550                                         SCTP_INP_RLOCK(inp);
 3551                                         av->assoc_value = inp->reconfig_supported;
 3552                                         SCTP_INP_RUNLOCK(inp);
 3553                                 } else {
 3554                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3555                                         error = EINVAL;
 3556                                 }
 3557                         }
 3558                         if (error == 0) {
 3559                                 *optsize = sizeof(struct sctp_assoc_value);
 3560                         }
 3561                         break;
 3562                 }
 3563         case SCTP_NRSACK_SUPPORTED:
 3564                 {
 3565                         struct sctp_assoc_value *av;
 3566 
 3567                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3568                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3569 
 3570                         if (stcb) {
 3571                                 av->assoc_value = stcb->asoc.nrsack_supported;
 3572                                 SCTP_TCB_UNLOCK(stcb);
 3573                         } else {
 3574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3576                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3577                                         SCTP_INP_RLOCK(inp);
 3578                                         av->assoc_value = inp->nrsack_supported;
 3579                                         SCTP_INP_RUNLOCK(inp);
 3580                                 } else {
 3581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3582                                         error = EINVAL;
 3583                                 }
 3584                         }
 3585                         if (error == 0) {
 3586                                 *optsize = sizeof(struct sctp_assoc_value);
 3587                         }
 3588                         break;
 3589                 }
 3590         case SCTP_PKTDROP_SUPPORTED:
 3591                 {
 3592                         struct sctp_assoc_value *av;
 3593 
 3594                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3595                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3596 
 3597                         if (stcb) {
 3598                                 av->assoc_value = stcb->asoc.pktdrop_supported;
 3599                                 SCTP_TCB_UNLOCK(stcb);
 3600                         } else {
 3601                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3602                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3603                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3604                                         SCTP_INP_RLOCK(inp);
 3605                                         av->assoc_value = inp->pktdrop_supported;
 3606                                         SCTP_INP_RUNLOCK(inp);
 3607                                 } else {
 3608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3609                                         error = EINVAL;
 3610                                 }
 3611                         }
 3612                         if (error == 0) {
 3613                                 *optsize = sizeof(struct sctp_assoc_value);
 3614                         }
 3615                         break;
 3616                 }
 3617         case SCTP_ENABLE_STREAM_RESET:
 3618                 {
 3619                         struct sctp_assoc_value *av;
 3620 
 3621                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3622                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3623 
 3624                         if (stcb) {
 3625                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
 3626                                 SCTP_TCB_UNLOCK(stcb);
 3627                         } else {
 3628                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3629                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3630                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3631                                         SCTP_INP_RLOCK(inp);
 3632                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
 3633                                         SCTP_INP_RUNLOCK(inp);
 3634                                 } else {
 3635                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3636                                         error = EINVAL;
 3637                                 }
 3638                         }
 3639                         if (error == 0) {
 3640                                 *optsize = sizeof(struct sctp_assoc_value);
 3641                         }
 3642                         break;
 3643                 }
 3644         case SCTP_PR_STREAM_STATUS:
 3645                 {
 3646                         struct sctp_prstatus *sprstat;
 3647                         uint16_t sid;
 3648                         uint16_t policy;
 3649 
 3650                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3651                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3652 
 3653                         sid = sprstat->sprstat_sid;
 3654                         policy = sprstat->sprstat_policy;
 3655 #if defined(SCTP_DETAILED_STR_STATS)
 3656                         if ((stcb != NULL) &&
 3657                             (sid < stcb->asoc.streamoutcnt) &&
 3658                             (policy != SCTP_PR_SCTP_NONE) &&
 3659                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3660                             (policy == SCTP_PR_SCTP_ALL))) {
 3661                                 if (policy == SCTP_PR_SCTP_ALL) {
 3662                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3663                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3664                                 } else {
 3665                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
 3666                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
 3667                                 }
 3668 #else
 3669                         if ((stcb != NULL) &&
 3670                             (sid < stcb->asoc.streamoutcnt) &&
 3671                             (policy == SCTP_PR_SCTP_ALL)) {
 3672                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3673                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3674 #endif
 3675                                 SCTP_TCB_UNLOCK(stcb);
 3676                                 *optsize = sizeof(struct sctp_prstatus);
 3677                         } else {
 3678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3679                                 error = EINVAL;
 3680                         }
 3681                         break;
 3682                 }
 3683         case SCTP_PR_ASSOC_STATUS:
 3684                 {
 3685                         struct sctp_prstatus *sprstat;
 3686                         uint16_t policy;
 3687 
 3688                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3689                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3690 
 3691                         policy = sprstat->sprstat_policy;
 3692                         if ((stcb != NULL) &&
 3693                             (policy != SCTP_PR_SCTP_NONE) &&
 3694                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3695                             (policy == SCTP_PR_SCTP_ALL))) {
 3696                                 if (policy == SCTP_PR_SCTP_ALL) {
 3697                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
 3698                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
 3699                                 } else {
 3700                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
 3701                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
 3702                                 }
 3703                                 SCTP_TCB_UNLOCK(stcb);
 3704                                 *optsize = sizeof(struct sctp_prstatus);
 3705                         } else {
 3706                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3707                                 error = EINVAL;
 3708                         }
 3709                         break;
 3710                 }
 3711         case SCTP_MAX_CWND:
 3712                 {
 3713                         struct sctp_assoc_value *av;
 3714 
 3715                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3716                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3717 
 3718                         if (stcb) {
 3719                                 av->assoc_value = stcb->asoc.max_cwnd;
 3720                                 SCTP_TCB_UNLOCK(stcb);
 3721                         } else {
 3722                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3723                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3724                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3725                                         SCTP_INP_RLOCK(inp);
 3726                                         av->assoc_value = inp->max_cwnd;
 3727                                         SCTP_INP_RUNLOCK(inp);
 3728                                 } else {
 3729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3730                                         error = EINVAL;
 3731                                 }
 3732                         }
 3733                         if (error == 0) {
 3734                                 *optsize = sizeof(struct sctp_assoc_value);
 3735                         }
 3736                         break;
 3737                 }
 3738         default:
 3739                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3740                 error = ENOPROTOOPT;
 3741                 break;
 3742         }                       /* end switch (sopt->sopt_name) */
 3743         if (error) {
 3744                 *optsize = 0;
 3745         }
 3746         return (error);
 3747 }
 3748 
 3749 static int
 3750 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 3751     void *p)
 3752 {
 3753         int error, set_opt;
 3754         uint32_t *mopt;
 3755         struct sctp_tcb *stcb = NULL;
 3756         struct sctp_inpcb *inp = NULL;
 3757         uint32_t vrf_id;
 3758 
 3759         if (optval == NULL) {
 3760                 SCTP_PRINTF("optval is NULL\n");
 3761                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3762                 return (EINVAL);
 3763         }
 3764         inp = (struct sctp_inpcb *)so->so_pcb;
 3765         if (inp == NULL) {
 3766                 SCTP_PRINTF("inp is NULL?\n");
 3767                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3768                 return (EINVAL);
 3769         }
 3770         vrf_id = inp->def_vrf_id;
 3771 
 3772         error = 0;
 3773         switch (optname) {
 3774         case SCTP_NODELAY:
 3775         case SCTP_AUTOCLOSE:
 3776         case SCTP_AUTO_ASCONF:
 3777         case SCTP_EXPLICIT_EOR:
 3778         case SCTP_DISABLE_FRAGMENTS:
 3779         case SCTP_USE_EXT_RCVINFO:
 3780         case SCTP_I_WANT_MAPPED_V4_ADDR:
 3781                 /* copy in the option value */
 3782                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3783                 set_opt = 0;
 3784                 if (error)
 3785                         break;
 3786                 switch (optname) {
 3787                 case SCTP_DISABLE_FRAGMENTS:
 3788                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 3789                         break;
 3790                 case SCTP_AUTO_ASCONF:
 3791                         /*
 3792                          * NOTE: we don't really support this flag
 3793                          */
 3794                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 3795                                 /* only valid for bound all sockets */
 3796                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
 3797                                     (*mopt != 0)) {
 3798                                         /* forbidden by admin */
 3799                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
 3800                                         return (EPERM);
 3801                                 }
 3802                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 3803                         } else {
 3804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3805                                 return (EINVAL);
 3806                         }
 3807                         break;
 3808                 case SCTP_EXPLICIT_EOR:
 3809                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 3810                         break;
 3811                 case SCTP_USE_EXT_RCVINFO:
 3812                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 3813                         break;
 3814                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 3815                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3816                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 3817                         } else {
 3818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3819                                 return (EINVAL);
 3820                         }
 3821                         break;
 3822                 case SCTP_NODELAY:
 3823                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 3824                         break;
 3825                 case SCTP_AUTOCLOSE:
 3826                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3827                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3829                                 return (EINVAL);
 3830                         }
 3831                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 3832                         /*
 3833                          * The value is in ticks. Note this does not effect
 3834                          * old associations, only new ones.
 3835                          */
 3836                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 3837                         break;
 3838                 }
 3839                 SCTP_INP_WLOCK(inp);
 3840                 if (*mopt != 0) {
 3841                         sctp_feature_on(inp, set_opt);
 3842                 } else {
 3843                         sctp_feature_off(inp, set_opt);
 3844                 }
 3845                 SCTP_INP_WUNLOCK(inp);
 3846                 break;
 3847         case SCTP_REUSE_PORT:
 3848                 {
 3849                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3850                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 3851                                 /* Can't set it after we are bound */
 3852                                 error = EINVAL;
 3853                                 break;
 3854                         }
 3855                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 3856                                 /* Can't do this for a 1-m socket */
 3857                                 error = EINVAL;
 3858                                 break;
 3859                         }
 3860                         if (optval)
 3861                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3862                         else
 3863                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3864                         break;
 3865                 }
 3866         case SCTP_PARTIAL_DELIVERY_POINT:
 3867                 {
 3868                         uint32_t *value;
 3869 
 3870                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 3871                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 3872                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3873                                 error = EINVAL;
 3874                                 break;
 3875                         }
 3876                         inp->partial_delivery_point = *value;
 3877                         break;
 3878                 }
 3879         case SCTP_FRAGMENT_INTERLEAVE:
 3880                 /* not yet until we re-write sctp_recvmsg() */
 3881                 {
 3882                         uint32_t *level;
 3883 
 3884                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 3885                         if (*level == SCTP_FRAG_LEVEL_2) {
 3886                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3887                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3888                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 3889                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3890                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3891                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 3892                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3893                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3894 
 3895                         } else {
 3896                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3897                                 error = EINVAL;
 3898                         }
 3899                         break;
 3900                 }
 3901         case SCTP_CMT_ON_OFF:
 3902                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 3903                         struct sctp_assoc_value *av;
 3904 
 3905                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3906                         if (av->assoc_value > SCTP_CMT_MAX) {
 3907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3908                                 error = EINVAL;
 3909                                 break;
 3910                         }
 3911                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3912                         if (stcb) {
 3913                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3914                                 SCTP_TCB_UNLOCK(stcb);
 3915                         } else {
 3916                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3917                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3918                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3919                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3920                                         SCTP_INP_WLOCK(inp);
 3921                                         inp->sctp_cmt_on_off = av->assoc_value;
 3922                                         SCTP_INP_WUNLOCK(inp);
 3923                                 }
 3924                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3925                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3926                                         SCTP_INP_RLOCK(inp);
 3927                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3928                                                 SCTP_TCB_LOCK(stcb);
 3929                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3930                                                 SCTP_TCB_UNLOCK(stcb);
 3931                                         }
 3932                                         SCTP_INP_RUNLOCK(inp);
 3933                                 }
 3934                         }
 3935                 } else {
 3936                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3937                         error = ENOPROTOOPT;
 3938                 }
 3939                 break;
 3940         case SCTP_PLUGGABLE_CC:
 3941                 {
 3942                         struct sctp_assoc_value *av;
 3943                         struct sctp_nets *net;
 3944 
 3945                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3946                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
 3947                             (av->assoc_value != SCTP_CC_HSTCP) &&
 3948                             (av->assoc_value != SCTP_CC_HTCP) &&
 3949                             (av->assoc_value != SCTP_CC_RTCC)) {
 3950                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3951                                 error = EINVAL;
 3952                                 break;
 3953                         }
 3954                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3955                         if (stcb) {
 3956                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3957                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3958                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3959                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3960                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3961                                         }
 3962                                 }
 3963                                 SCTP_TCB_UNLOCK(stcb);
 3964                         } else {
 3965                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3966                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3967                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3968                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3969                                         SCTP_INP_WLOCK(inp);
 3970                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 3971                                         SCTP_INP_WUNLOCK(inp);
 3972                                 }
 3973                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3974                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3975                                         SCTP_INP_RLOCK(inp);
 3976                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3977                                                 SCTP_TCB_LOCK(stcb);
 3978                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3979                                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3980                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3981                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3982                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3983                                                         }
 3984                                                 }
 3985                                                 SCTP_TCB_UNLOCK(stcb);
 3986                                         }
 3987                                         SCTP_INP_RUNLOCK(inp);
 3988                                 }
 3989                         }
 3990                         break;
 3991                 }
 3992         case SCTP_CC_OPTION:
 3993                 {
 3994                         struct sctp_cc_option *cc_opt;
 3995 
 3996                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
 3997                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 3998                         if (stcb == NULL) {
 3999                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
 4000                                         SCTP_INP_RLOCK(inp);
 4001                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4002                                                 SCTP_TCB_LOCK(stcb);
 4003                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
 4004                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
 4005                                                 }
 4006                                                 SCTP_TCB_UNLOCK(stcb);
 4007                                         }
 4008                                         SCTP_INP_RUNLOCK(inp);
 4009                                 } else {
 4010                                         error = EINVAL;
 4011                                 }
 4012                         } else {
 4013                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 4014                                         error = ENOTSUP;
 4015                                 } else {
 4016                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
 4017                                             cc_opt);
 4018                                 }
 4019                                 SCTP_TCB_UNLOCK(stcb);
 4020                         }
 4021                         break;
 4022                 }
 4023         case SCTP_PLUGGABLE_SS:
 4024                 {
 4025                         struct sctp_assoc_value *av;
 4026 
 4027                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4028                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
 4029                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
 4030                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
 4031                             (av->assoc_value != SCTP_SS_PRIORITY) &&
 4032                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
 4033                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
 4034                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4035                                 error = EINVAL;
 4036                                 break;
 4037                         }
 4038                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4039                         if (stcb) {
 4040                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4041                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4042                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4043                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4044                                 SCTP_TCB_UNLOCK(stcb);
 4045                         } else {
 4046                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4047                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4048                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4049                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4050                                         SCTP_INP_WLOCK(inp);
 4051                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
 4052                                         SCTP_INP_WUNLOCK(inp);
 4053                                 }
 4054                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4055                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4056                                         SCTP_INP_RLOCK(inp);
 4057                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4058                                                 SCTP_TCB_LOCK(stcb);
 4059                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4060                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4061                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4062                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4063                                                 SCTP_TCB_UNLOCK(stcb);
 4064                                         }
 4065                                         SCTP_INP_RUNLOCK(inp);
 4066                                 }
 4067                         }
 4068                         break;
 4069                 }
 4070         case SCTP_SS_VALUE:
 4071                 {
 4072                         struct sctp_stream_value *av;
 4073 
 4074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
 4075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4076                         if (stcb) {
 4077                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 4078                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 4079                                     av->stream_value) < 0)) {
 4080                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4081                                         error = EINVAL;
 4082                                 }
 4083                                 SCTP_TCB_UNLOCK(stcb);
 4084                         } else {
 4085                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
 4086                                         SCTP_INP_RLOCK(inp);
 4087                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4088                                                 SCTP_TCB_LOCK(stcb);
 4089                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
 4090                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
 4091                                                             &stcb->asoc,
 4092                                                             &stcb->asoc.strmout[av->stream_id],
 4093                                                             av->stream_value);
 4094                                                 }
 4095                                                 SCTP_TCB_UNLOCK(stcb);
 4096                                         }
 4097                                         SCTP_INP_RUNLOCK(inp);
 4098                                 } else {
 4099                                         /*
 4100                                          * Can't set stream value without
 4101                                          * association
 4102                                          */
 4103                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4104                                         error = EINVAL;
 4105                                 }
 4106                         }
 4107                         break;
 4108                 }
 4109         case SCTP_CLR_STAT_LOG:
 4110                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4111                 error = EOPNOTSUPP;
 4112                 break;
 4113         case SCTP_CONTEXT:
 4114                 {
 4115                         struct sctp_assoc_value *av;
 4116 
 4117                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4118                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4119 
 4120                         if (stcb) {
 4121                                 stcb->asoc.context = av->assoc_value;
 4122                                 SCTP_TCB_UNLOCK(stcb);
 4123                         } else {
 4124                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4125                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4126                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4127                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4128                                         SCTP_INP_WLOCK(inp);
 4129                                         inp->sctp_context = av->assoc_value;
 4130                                         SCTP_INP_WUNLOCK(inp);
 4131                                 }
 4132                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4133                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4134                                         SCTP_INP_RLOCK(inp);
 4135                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4136                                                 SCTP_TCB_LOCK(stcb);
 4137                                                 stcb->asoc.context = av->assoc_value;
 4138                                                 SCTP_TCB_UNLOCK(stcb);
 4139                                         }
 4140                                         SCTP_INP_RUNLOCK(inp);
 4141                                 }
 4142                         }
 4143                         break;
 4144                 }
 4145         case SCTP_VRF_ID:
 4146                 {
 4147                         uint32_t *default_vrfid;
 4148 
 4149                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 4150                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 4151                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4152                                 error = EINVAL;
 4153                                 break;
 4154                         }
 4155                         inp->def_vrf_id = *default_vrfid;
 4156                         break;
 4157                 }
 4158         case SCTP_DEL_VRF_ID:
 4159                 {
 4160                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4161                         error = EOPNOTSUPP;
 4162                         break;
 4163                 }
 4164         case SCTP_ADD_VRF_ID:
 4165                 {
 4166                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4167                         error = EOPNOTSUPP;
 4168                         break;
 4169                 }
 4170         case SCTP_DELAYED_SACK:
 4171                 {
 4172                         struct sctp_sack_info *sack;
 4173 
 4174                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 4175                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 4176                         if (sack->sack_delay) {
 4177                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 4178                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 4179                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 4180                                         sack->sack_delay = TICKS_TO_MSEC(1);
 4181                                 }
 4182                         }
 4183                         if (stcb) {
 4184                                 if (sack->sack_delay) {
 4185                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4186                                 }
 4187                                 if (sack->sack_freq) {
 4188                                         stcb->asoc.sack_freq = sack->sack_freq;
 4189                                 }
 4190                                 SCTP_TCB_UNLOCK(stcb);
 4191                         } else {
 4192                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4193                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4194                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
 4195                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 4196                                         SCTP_INP_WLOCK(inp);
 4197                                         if (sack->sack_delay) {
 4198                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 4199                                         }
 4200                                         if (sack->sack_freq) {
 4201                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 4202                                         }
 4203                                         SCTP_INP_WUNLOCK(inp);
 4204                                 }
 4205                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
 4206                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 4207                                         SCTP_INP_RLOCK(inp);
 4208                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4209                                                 SCTP_TCB_LOCK(stcb);
 4210                                                 if (sack->sack_delay) {
 4211                                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4212                                                 }
 4213                                                 if (sack->sack_freq) {
 4214                                                         stcb->asoc.sack_freq = sack->sack_freq;
 4215                                                 }
 4216                                                 SCTP_TCB_UNLOCK(stcb);
 4217                                         }
 4218                                         SCTP_INP_RUNLOCK(inp);
 4219                                 }
 4220                         }
 4221                         break;
 4222                 }
 4223         case SCTP_AUTH_CHUNK:
 4224                 {
 4225                         struct sctp_authchunk *sauth;
 4226 
 4227                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 4228 
 4229                         SCTP_INP_WLOCK(inp);
 4230                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 4231                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4232                                 error = EINVAL;
 4233                         }
 4234                         SCTP_INP_WUNLOCK(inp);
 4235                         break;
 4236                 }
 4237         case SCTP_AUTH_KEY:
 4238                 {
 4239                         struct sctp_authkey *sca;
 4240                         struct sctp_keyhead *shared_keys;
 4241                         sctp_sharedkey_t *shared_key;
 4242                         sctp_key_t *key = NULL;
 4243                         size_t size;
 4244 
 4245                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 4246                         if (sca->sca_keylength == 0) {
 4247                                 size = optsize - sizeof(struct sctp_authkey);
 4248                         } else {
 4249                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
 4250                                         size = sca->sca_keylength;
 4251                                 } else {
 4252                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4253                                         error = EINVAL;
 4254                                         break;
 4255                                 }
 4256                         }
 4257                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 4258 
 4259                         if (stcb) {
 4260                                 shared_keys = &stcb->asoc.shared_keys;
 4261                                 /* clear the cached keys for this key id */
 4262                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4263                                 /*
 4264                                  * create the new shared key and
 4265                                  * insert/replace it
 4266                                  */
 4267                                 if (size > 0) {
 4268                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 4269                                         if (key == NULL) {
 4270                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4271                                                 error = ENOMEM;
 4272                                                 SCTP_TCB_UNLOCK(stcb);
 4273                                                 break;
 4274                                         }
 4275                                 }
 4276                                 shared_key = sctp_alloc_sharedkey();
 4277                                 if (shared_key == NULL) {
 4278                                         sctp_free_key(key);
 4279                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4280                                         error = ENOMEM;
 4281                                         SCTP_TCB_UNLOCK(stcb);
 4282                                         break;
 4283                                 }
 4284                                 shared_key->key = key;
 4285                                 shared_key->keyid = sca->sca_keynumber;
 4286                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4287                                 SCTP_TCB_UNLOCK(stcb);
 4288                         } else {
 4289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4290                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4291                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
 4292                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 4293                                         SCTP_INP_WLOCK(inp);
 4294                                         shared_keys = &inp->sctp_ep.shared_keys;
 4295                                         /*
 4296                                          * clear the cached keys on all
 4297                                          * assocs for this key id
 4298                                          */
 4299                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 4300                                         /*
 4301                                          * create the new shared key and
 4302                                          * insert/replace it
 4303                                          */
 4304                                         if (size > 0) {
 4305                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
 4306                                                 if (key == NULL) {
 4307                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4308                                                         error = ENOMEM;
 4309                                                         SCTP_INP_WUNLOCK(inp);
 4310                                                         break;
 4311                                                 }
 4312                                         }
 4313                                         shared_key = sctp_alloc_sharedkey();
 4314                                         if (shared_key == NULL) {
 4315                                                 sctp_free_key(key);
 4316                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4317                                                 error = ENOMEM;
 4318                                                 SCTP_INP_WUNLOCK(inp);
 4319                                                 break;
 4320                                         }
 4321                                         shared_key->key = key;
 4322                                         shared_key->keyid = sca->sca_keynumber;
 4323                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
 4324                                         SCTP_INP_WUNLOCK(inp);
 4325                                 }
 4326                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
 4327                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 4328                                         SCTP_INP_RLOCK(inp);
 4329                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4330                                                 SCTP_TCB_LOCK(stcb);
 4331                                                 shared_keys = &stcb->asoc.shared_keys;
 4332                                                 /*
 4333                                                  * clear the cached keys for
 4334                                                  * this key id
 4335                                                  */
 4336                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4337                                                 /*
 4338                                                  * create the new shared key
 4339                                                  * and insert/replace it
 4340                                                  */
 4341                                                 if (size > 0) {
 4342                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 4343                                                         if (key == NULL) {
 4344                                                                 SCTP_TCB_UNLOCK(stcb);
 4345                                                                 continue;
 4346                                                         }
 4347                                                 }
 4348                                                 shared_key = sctp_alloc_sharedkey();
 4349                                                 if (shared_key == NULL) {
 4350                                                         sctp_free_key(key);
 4351                                                         SCTP_TCB_UNLOCK(stcb);
 4352                                                         continue;
 4353                                                 }
 4354                                                 shared_key->key = key;
 4355                                                 shared_key->keyid = sca->sca_keynumber;
 4356                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4357                                                 SCTP_TCB_UNLOCK(stcb);
 4358                                         }
 4359                                         SCTP_INP_RUNLOCK(inp);
 4360                                 }
 4361                         }
 4362                         break;
 4363                 }
 4364         case SCTP_HMAC_IDENT:
 4365                 {
 4366                         struct sctp_hmacalgo *shmac;
 4367                         sctp_hmaclist_t *hmaclist;
 4368                         uint16_t hmacid;
 4369                         uint32_t i;
 4370 
 4371                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 4372                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
 4373                             (shmac->shmac_number_of_idents > 0xffff)) {
 4374                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4375                                 error = EINVAL;
 4376                                 break;
 4377                         }
 4378                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
 4379                         if (hmaclist == NULL) {
 4380                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4381                                 error = ENOMEM;
 4382                                 break;
 4383                         }
 4384                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 4385                                 hmacid = shmac->shmac_idents[i];
 4386                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 4387                                          /* invalid HMACs were found */ ;
 4388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4389                                         error = EINVAL;
 4390                                         sctp_free_hmaclist(hmaclist);
 4391                                         goto sctp_set_hmac_done;
 4392                                 }
 4393                         }
 4394                         for (i = 0; i < hmaclist->num_algo; i++) {
 4395                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 4396                                         /* already in list */
 4397                                         break;
 4398                                 }
 4399                         }
 4400                         if (i == hmaclist->num_algo) {
 4401                                 /* not found in list */
 4402                                 sctp_free_hmaclist(hmaclist);
 4403                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4404                                 error = EINVAL;
 4405                                 break;
 4406                         }
 4407                         /* set it on the endpoint */
 4408                         SCTP_INP_WLOCK(inp);
 4409                         if (inp->sctp_ep.local_hmacs)
 4410                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 4411                         inp->sctp_ep.local_hmacs = hmaclist;
 4412                         SCTP_INP_WUNLOCK(inp);
 4413         sctp_set_hmac_done:
 4414                         break;
 4415                 }
 4416         case SCTP_AUTH_ACTIVE_KEY:
 4417                 {
 4418                         struct sctp_authkeyid *scact;
 4419 
 4420                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
 4421                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 4422 
 4423                         /* set the active key on the right place */
 4424                         if (stcb) {
 4425                                 /* set the active key on the assoc */
 4426                                 if (sctp_auth_setactivekey(stcb,
 4427                                     scact->scact_keynumber)) {
 4428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 4429                                             SCTP_FROM_SCTP_USRREQ,
 4430                                             EINVAL);
 4431                                         error = EINVAL;
 4432                                 }
 4433                                 SCTP_TCB_UNLOCK(stcb);
 4434                         } else {
 4435                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4436                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4437                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4438                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4439                                         SCTP_INP_WLOCK(inp);
 4440                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
 4441                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4442                                                 error = EINVAL;
 4443                                         }
 4444                                         SCTP_INP_WUNLOCK(inp);
 4445                                 }
 4446                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4447                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4448                                         SCTP_INP_RLOCK(inp);
 4449                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4450                                                 SCTP_TCB_LOCK(stcb);
 4451                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
 4452                                                 SCTP_TCB_UNLOCK(stcb);
 4453                                         }
 4454                                         SCTP_INP_RUNLOCK(inp);
 4455                                 }
 4456                         }
 4457                         break;
 4458                 }
 4459         case SCTP_AUTH_DELETE_KEY:
 4460                 {
 4461                         struct sctp_authkeyid *scdel;
 4462 
 4463                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
 4464                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 4465 
 4466                         /* delete the key from the right place */
 4467                         if (stcb) {
 4468                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
 4469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4470                                         error = EINVAL;
 4471                                 }
 4472                                 SCTP_TCB_UNLOCK(stcb);
 4473                         } else {
 4474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4476                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4477                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4478                                         SCTP_INP_WLOCK(inp);
 4479                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
 4480                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4481                                                 error = EINVAL;
 4482                                         }
 4483                                         SCTP_INP_WUNLOCK(inp);
 4484                                 }
 4485                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4486                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4487                                         SCTP_INP_RLOCK(inp);
 4488                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4489                                                 SCTP_TCB_LOCK(stcb);
 4490                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
 4491                                                 SCTP_TCB_UNLOCK(stcb);
 4492                                         }
 4493                                         SCTP_INP_RUNLOCK(inp);
 4494                                 }
 4495                         }
 4496                         break;
 4497                 }
 4498         case SCTP_AUTH_DEACTIVATE_KEY:
 4499                 {
 4500                         struct sctp_authkeyid *keyid;
 4501 
 4502                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
 4503                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 4504 
 4505                         /* deactivate the key from the right place */
 4506                         if (stcb) {
 4507                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
 4508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4509                                         error = EINVAL;
 4510                                 }
 4511                                 SCTP_TCB_UNLOCK(stcb);
 4512                         } else {
 4513                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4514                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4515                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4516                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4517                                         SCTP_INP_WLOCK(inp);
 4518                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
 4519                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4520                                                 error = EINVAL;
 4521                                         }
 4522                                         SCTP_INP_WUNLOCK(inp);
 4523                                 }
 4524                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4525                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4526                                         SCTP_INP_RLOCK(inp);
 4527                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4528                                                 SCTP_TCB_LOCK(stcb);
 4529                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
 4530                                                 SCTP_TCB_UNLOCK(stcb);
 4531                                         }
 4532                                         SCTP_INP_RUNLOCK(inp);
 4533                                 }
 4534                         }
 4535                         break;
 4536                 }
 4537         case SCTP_ENABLE_STREAM_RESET:
 4538                 {
 4539                         struct sctp_assoc_value *av;
 4540 
 4541                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4542                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
 4543                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4544                                 error = EINVAL;
 4545                                 break;
 4546                         }
 4547                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4548                         if (stcb) {
 4549                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4550                                 SCTP_TCB_UNLOCK(stcb);
 4551                         } else {
 4552                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4553                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4554                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4555                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4556                                         SCTP_INP_WLOCK(inp);
 4557                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
 4558                                         SCTP_INP_WUNLOCK(inp);
 4559                                 }
 4560                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4561                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4562                                         SCTP_INP_RLOCK(inp);
 4563                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4564                                                 SCTP_TCB_LOCK(stcb);
 4565                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4566                                                 SCTP_TCB_UNLOCK(stcb);
 4567                                         }
 4568                                         SCTP_INP_RUNLOCK(inp);
 4569                                 }
 4570                         }
 4571                         break;
 4572                 }
 4573         case SCTP_RESET_STREAMS:
 4574                 {
 4575                         struct sctp_reset_streams *strrst;
 4576                         int i, send_out = 0;
 4577                         int send_in = 0;
 4578 
 4579                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
 4580                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
 4581                         if (stcb == NULL) {
 4582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4583                                 error = ENOENT;
 4584                                 break;
 4585                         }
 4586                         if (stcb->asoc.reconfig_supported == 0) {
 4587                                 /*
 4588                                  * Peer does not support the chunk type.
 4589                                  */
 4590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4591                                 error = EOPNOTSUPP;
 4592                                 SCTP_TCB_UNLOCK(stcb);
 4593                                 break;
 4594                         }
 4595                         if (sizeof(struct sctp_reset_streams) +
 4596                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
 4597                                 error = EINVAL;
 4598                                 SCTP_TCB_UNLOCK(stcb);
 4599                                 break;
 4600                         }
 4601                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
 4602                                 send_in = 1;
 4603                                 if (stcb->asoc.stream_reset_outstanding) {
 4604                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4605                                         error = EALREADY;
 4606                                         SCTP_TCB_UNLOCK(stcb);
 4607                                         break;
 4608                                 }
 4609                         }
 4610                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 4611                                 send_out = 1;
 4612                         }
 4613                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
 4614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4615                                 error = ENOMEM;
 4616                                 SCTP_TCB_UNLOCK(stcb);
 4617                                 break;
 4618                         }
 4619                         if ((send_in == 0) && (send_out == 0)) {
 4620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4621                                 error = EINVAL;
 4622                                 SCTP_TCB_UNLOCK(stcb);
 4623                                 break;
 4624                         }
 4625                         for (i = 0; i < strrst->srs_number_streams; i++) {
 4626                                 if ((send_in) &&
 4627                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
 4628                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4629                                         error = EINVAL;
 4630                                         break;
 4631                                 }
 4632                                 if ((send_out) &&
 4633                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
 4634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4635                                         error = EINVAL;
 4636                                         break;
 4637                                 }
 4638                         }
 4639                         if (error) {
 4640                                 SCTP_TCB_UNLOCK(stcb);
 4641                                 break;
 4642                         }
 4643                         if (send_out) {
 4644                                 int cnt;
 4645                                 uint16_t strm;
 4646 
 4647                                 if (strrst->srs_number_streams) {
 4648                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
 4649                                                 strm = strrst->srs_stream_list[i];
 4650                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
 4651                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
 4652                                                         cnt++;
 4653                                                 }
 4654                                         }
 4655                                 } else {
 4656                                         /* Its all */
 4657                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
 4658                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
 4659                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
 4660                                                         cnt++;
 4661                                                 }
 4662                                         }
 4663                                 }
 4664                         }
 4665                         if (send_in) {
 4666                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 4667                                     strrst->srs_stream_list,
 4668                                     send_in, 0, 0, 0, 0, 0);
 4669                         } else {
 4670                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
 4671                         }
 4672                         if (error == 0) {
 4673                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4674                         } else {
 4675                                 /*
 4676                                  * For outgoing streams don't report any
 4677                                  * problems in sending the request to the
 4678                                  * application. XXX: Double check resetting
 4679                                  * incoming streams.
 4680                                  */
 4681                                 error = 0;
 4682                         }
 4683                         SCTP_TCB_UNLOCK(stcb);
 4684                         break;
 4685                 }
 4686         case SCTP_ADD_STREAMS:
 4687                 {
 4688                         struct sctp_add_streams *stradd;
 4689                         uint8_t addstream = 0;
 4690                         uint16_t add_o_strmcnt = 0;
 4691                         uint16_t add_i_strmcnt = 0;
 4692 
 4693                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
 4694                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
 4695                         if (stcb == NULL) {
 4696                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4697                                 error = ENOENT;
 4698                                 break;
 4699                         }
 4700                         if (stcb->asoc.reconfig_supported == 0) {
 4701                                 /*
 4702                                  * Peer does not support the chunk type.
 4703                                  */
 4704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4705                                 error = EOPNOTSUPP;
 4706                                 SCTP_TCB_UNLOCK(stcb);
 4707                                 break;
 4708                         }
 4709                         if (stcb->asoc.stream_reset_outstanding) {
 4710                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4711                                 error = EALREADY;
 4712                                 SCTP_TCB_UNLOCK(stcb);
 4713                                 break;
 4714                         }
 4715                         if ((stradd->sas_outstrms == 0) &&
 4716                             (stradd->sas_instrms == 0)) {
 4717                                 error = EINVAL;
 4718                                 goto skip_stuff;
 4719                         }
 4720                         if (stradd->sas_outstrms) {
 4721                                 addstream = 1;
 4722                                 /* We allocate here */
 4723                                 add_o_strmcnt = stradd->sas_outstrms;
 4724                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
 4725                                         /* You can't have more than 64k */
 4726                                         error = EINVAL;
 4727                                         goto skip_stuff;
 4728                                 }
 4729                         }
 4730                         if (stradd->sas_instrms) {
 4731                                 int cnt;
 4732 
 4733                                 addstream |= 2;
 4734                                 /*
 4735                                  * We allocate inside
 4736                                  * sctp_send_str_reset_req()
 4737                                  */
 4738                                 add_i_strmcnt = stradd->sas_instrms;
 4739                                 cnt = add_i_strmcnt;
 4740                                 cnt += stcb->asoc.streamincnt;
 4741                                 if (cnt > 0x0000ffff) {
 4742                                         /* You can't have more than 64k */
 4743                                         error = EINVAL;
 4744                                         goto skip_stuff;
 4745                                 }
 4746                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
 4747                                         /* More than you are allowed */
 4748                                         error = EINVAL;
 4749                                         goto skip_stuff;
 4750                                 }
 4751                         }
 4752                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
 4753                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4754         skip_stuff:
 4755                         SCTP_TCB_UNLOCK(stcb);
 4756                         break;
 4757                 }
 4758         case SCTP_RESET_ASSOC:
 4759                 {
 4760                         int i;
 4761                         uint32_t *value;
 4762 
 4763                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 4764                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 4765                         if (stcb == NULL) {
 4766                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4767                                 error = ENOENT;
 4768                                 break;
 4769                         }
 4770                         if (stcb->asoc.reconfig_supported == 0) {
 4771                                 /*
 4772                                  * Peer does not support the chunk type.
 4773                                  */
 4774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4775                                 error = EOPNOTSUPP;
 4776                                 SCTP_TCB_UNLOCK(stcb);
 4777                                 break;
 4778                         }
 4779                         if (stcb->asoc.stream_reset_outstanding) {
 4780                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4781                                 error = EALREADY;
 4782                                 SCTP_TCB_UNLOCK(stcb);
 4783                                 break;
 4784                         }
 4785                         /*
 4786                          * Is there any data pending in the send or sent
 4787                          * queues?
 4788                          */
 4789                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
 4790                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
 4791                 busy_out:
 4792                                 error = EBUSY;
 4793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4794                                 SCTP_TCB_UNLOCK(stcb);
 4795                                 break;
 4796                         }
 4797                         /* Do any streams have data queued? */
 4798                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
 4799                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
 4800                                         goto busy_out;
 4801                                 }
 4802                         }
 4803                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
 4804                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4805                         SCTP_TCB_UNLOCK(stcb);
 4806                         break;
 4807                 }
 4808         case SCTP_CONNECT_X:
 4809                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4810                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4811                         error = EINVAL;
 4812                         break;
 4813                 }
 4814                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 4815                 break;
 4816         case SCTP_CONNECT_X_DELAYED:
 4817                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4818                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4819                         error = EINVAL;
 4820                         break;
 4821                 }
 4822                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 4823                 break;
 4824         case SCTP_CONNECT_X_COMPLETE:
 4825                 {
 4826                         struct sockaddr *sa;
 4827 
 4828                         /* FIXME MT: check correct? */
 4829                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 4830 
 4831                         /* find tcb */
 4832                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4833                                 SCTP_INP_RLOCK(inp);
 4834                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4835                                 if (stcb) {
 4836                                         SCTP_TCB_LOCK(stcb);
 4837                                 }
 4838                                 SCTP_INP_RUNLOCK(inp);
 4839                         } else {
 4840                                 /*
 4841                                  * We increment here since
 4842                                  * sctp_findassociation_ep_addr() wil do a
 4843                                  * decrement if it finds the stcb as long as
 4844                                  * the locked tcb (last argument) is NOT a
 4845                                  * TCB.. aka NULL.
 4846                                  */
 4847                                 SCTP_INP_INCR_REF(inp);
 4848                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
 4849                                 if (stcb == NULL) {
 4850                                         SCTP_INP_DECR_REF(inp);
 4851                                 }
 4852                         }
 4853 
 4854                         if (stcb == NULL) {
 4855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4856                                 error = ENOENT;
 4857                                 break;
 4858                         }
 4859                         if (stcb->asoc.delayed_connection == 1) {
 4860                                 stcb->asoc.delayed_connection = 0;
 4861                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4862                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 4863                                     stcb->asoc.primary_destination,
 4864                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
 4865                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4866                         } else {
 4867                                 /*
 4868                                  * already expired or did not use delayed
 4869                                  * connectx
 4870                                  */
 4871                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4872                                 error = EALREADY;
 4873                         }
 4874                         SCTP_TCB_UNLOCK(stcb);
 4875                         break;
 4876                 }
 4877         case SCTP_MAX_BURST:
 4878                 {
 4879                         struct sctp_assoc_value *av;
 4880 
 4881                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4882                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4883 
 4884                         if (stcb) {
 4885                                 stcb->asoc.max_burst = av->assoc_value;
 4886                                 SCTP_TCB_UNLOCK(stcb);
 4887                         } else {
 4888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4890                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4891                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4892                                         SCTP_INP_WLOCK(inp);
 4893                                         inp->sctp_ep.max_burst = av->assoc_value;
 4894                                         SCTP_INP_WUNLOCK(inp);
 4895                                 }
 4896                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4897                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4898                                         SCTP_INP_RLOCK(inp);
 4899                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4900                                                 SCTP_TCB_LOCK(stcb);
 4901                                                 stcb->asoc.max_burst = av->assoc_value;
 4902                                                 SCTP_TCB_UNLOCK(stcb);
 4903                                         }
 4904                                         SCTP_INP_RUNLOCK(inp);
 4905                                 }
 4906                         }
 4907                         break;
 4908                 }
 4909         case SCTP_MAXSEG:
 4910                 {
 4911                         struct sctp_assoc_value *av;
 4912                         int ovh;
 4913 
 4914                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4915                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4916 
 4917                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4918                                 ovh = SCTP_MED_OVERHEAD;
 4919                         } else {
 4920                                 ovh = SCTP_MED_V4_OVERHEAD;
 4921                         }
 4922                         if (stcb) {
 4923                                 if (av->assoc_value) {
 4924                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 4925                                 } else {
 4926                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4927                                 }
 4928                                 SCTP_TCB_UNLOCK(stcb);
 4929                         } else {
 4930                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4931                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4932                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 4933                                         SCTP_INP_WLOCK(inp);
 4934                                         /*
 4935                                          * FIXME MT: I think this is not in
 4936                                          * tune with the API ID
 4937                                          */
 4938                                         if (av->assoc_value) {
 4939                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
 4940                                         } else {
 4941                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4942                                         }
 4943                                         SCTP_INP_WUNLOCK(inp);
 4944                                 } else {
 4945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4946                                         error = EINVAL;
 4947                                 }
 4948                         }
 4949                         break;
 4950                 }
 4951         case SCTP_EVENTS:
 4952                 {
 4953                         struct sctp_event_subscribe *events;
 4954 
 4955                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 4956 
 4957                         SCTP_INP_WLOCK(inp);
 4958                         if (events->sctp_data_io_event) {
 4959                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4960                         } else {
 4961                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4962                         }
 4963 
 4964                         if (events->sctp_association_event) {
 4965                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4966                         } else {
 4967                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4968                         }
 4969 
 4970                         if (events->sctp_address_event) {
 4971                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4972                         } else {
 4973                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4974                         }
 4975 
 4976                         if (events->sctp_send_failure_event) {
 4977                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4978                         } else {
 4979                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4980                         }
 4981 
 4982                         if (events->sctp_peer_error_event) {
 4983                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4984                         } else {
 4985                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4986                         }
 4987 
 4988                         if (events->sctp_shutdown_event) {
 4989                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4990                         } else {
 4991                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4992                         }
 4993 
 4994                         if (events->sctp_partial_delivery_event) {
 4995                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4996                         } else {
 4997                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4998                         }
 4999 
 5000                         if (events->sctp_adaptation_layer_event) {
 5001                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5002                         } else {
 5003                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5004                         }
 5005 
 5006                         if (events->sctp_authentication_event) {
 5007                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5008                         } else {
 5009                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5010                         }
 5011 
 5012                         if (events->sctp_sender_dry_event) {
 5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5014                         } else {
 5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5016                         }
 5017 
 5018                         if (events->sctp_stream_reset_event) {
 5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5020                         } else {
 5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5022                         }
 5023                         SCTP_INP_WUNLOCK(inp);
 5024 
 5025                         SCTP_INP_RLOCK(inp);
 5026                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5027                                 SCTP_TCB_LOCK(stcb);
 5028                                 if (events->sctp_association_event) {
 5029                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5030                                 } else {
 5031                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5032                                 }
 5033                                 if (events->sctp_address_event) {
 5034                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5035                                 } else {
 5036                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5037                                 }
 5038                                 if (events->sctp_send_failure_event) {
 5039                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5040                                 } else {
 5041                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5042                                 }
 5043                                 if (events->sctp_peer_error_event) {
 5044                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5045                                 } else {
 5046                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5047                                 }
 5048                                 if (events->sctp_shutdown_event) {
 5049                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5050                                 } else {
 5051                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5052                                 }
 5053                                 if (events->sctp_partial_delivery_event) {
 5054                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5055                                 } else {
 5056                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5057                                 }
 5058                                 if (events->sctp_adaptation_layer_event) {
 5059                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5060                                 } else {
 5061                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5062                                 }
 5063                                 if (events->sctp_authentication_event) {
 5064                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5065                                 } else {
 5066                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5067                                 }
 5068                                 if (events->sctp_sender_dry_event) {
 5069                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5070                                 } else {
 5071                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5072                                 }
 5073                                 if (events->sctp_stream_reset_event) {
 5074                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5075                                 } else {
 5076                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5077                                 }
 5078                                 SCTP_TCB_UNLOCK(stcb);
 5079                         }
 5080                         /*
 5081                          * Send up the sender dry event only for 1-to-1
 5082                          * style sockets.
 5083                          */
 5084                         if (events->sctp_sender_dry_event) {
 5085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 5087                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 5088                                         if (stcb) {
 5089                                                 SCTP_TCB_LOCK(stcb);
 5090                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 5091                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 5092                                                     (stcb->asoc.stream_queue_cnt == 0)) {
 5093                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 5094                                                 }
 5095                                                 SCTP_TCB_UNLOCK(stcb);
 5096                                         }
 5097                                 }
 5098                         }
 5099                         SCTP_INP_RUNLOCK(inp);
 5100                         break;
 5101                 }
 5102         case SCTP_ADAPTATION_LAYER:
 5103                 {
 5104                         struct sctp_setadaptation *adap_bits;
 5105 
 5106                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 5107                         SCTP_INP_WLOCK(inp);
 5108                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 5109                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
 5110                         SCTP_INP_WUNLOCK(inp);
 5111                         break;
 5112                 }
 5113 #ifdef SCTP_DEBUG
 5114         case SCTP_SET_INITIAL_DBG_SEQ:
 5115                 {
 5116                         uint32_t *vvv;
 5117 
 5118                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 5119                         SCTP_INP_WLOCK(inp);
 5120                         inp->sctp_ep.initial_sequence_debug = *vvv;
 5121                         SCTP_INP_WUNLOCK(inp);
 5122                         break;
 5123                 }
 5124 #endif
 5125         case SCTP_DEFAULT_SEND_PARAM:
 5126                 {
 5127                         struct sctp_sndrcvinfo *s_info;
 5128 
 5129                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 5130                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 5131 
 5132                         if (stcb) {
 5133                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5134                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5135                                 } else {
 5136                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5137                                         error = EINVAL;
 5138                                 }
 5139                                 SCTP_TCB_UNLOCK(stcb);
 5140                         } else {
 5141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5143                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
 5144                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 5145                                         SCTP_INP_WLOCK(inp);
 5146                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 5147                                         SCTP_INP_WUNLOCK(inp);
 5148                                 }
 5149                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
 5150                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 5151                                         SCTP_INP_RLOCK(inp);
 5152                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5153                                                 SCTP_TCB_LOCK(stcb);
 5154                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5155                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5156                                                 }
 5157                                                 SCTP_TCB_UNLOCK(stcb);
 5158                                         }
 5159                                         SCTP_INP_RUNLOCK(inp);
 5160                                 }
 5161                         }
 5162                         break;
 5163                 }
 5164         case SCTP_PEER_ADDR_PARAMS:
 5165                 {
 5166                         struct sctp_paddrparams *paddrp;
 5167                         struct sctp_nets *net;
 5168                         struct sockaddr *addr;
 5169 
 5170 #if defined(INET) && defined(INET6)
 5171                         struct sockaddr_in sin_store;
 5172 
 5173 #endif
 5174 
 5175                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 5176                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 5177 
 5178 #if defined(INET) && defined(INET6)
 5179                         if (paddrp->spp_address.ss_family == AF_INET6) {
 5180                                 struct sockaddr_in6 *sin6;
 5181 
 5182                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 5183                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5184                                         in6_sin6_2_sin(&sin_store, sin6);
 5185                                         addr = (struct sockaddr *)&sin_store;
 5186                                 } else {
 5187                                         addr = (struct sockaddr *)&paddrp->spp_address;
 5188                                 }
 5189                         } else {
 5190                                 addr = (struct sockaddr *)&paddrp->spp_address;
 5191                         }
 5192 #else
 5193                         addr = (struct sockaddr *)&paddrp->spp_address;
 5194 #endif
 5195                         if (stcb != NULL) {
 5196                                 net = sctp_findnet(stcb, addr);
 5197                         } else {
 5198                                 /*
 5199                                  * We increment here since
 5200                                  * sctp_findassociation_ep_addr() wil do a
 5201                                  * decrement if it finds the stcb as long as
 5202                                  * the locked tcb (last argument) is NOT a
 5203                                  * TCB.. aka NULL.
 5204                                  */
 5205                                 net = NULL;
 5206                                 SCTP_INP_INCR_REF(inp);
 5207                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 5208                                     &net, NULL, NULL);
 5209                                 if (stcb == NULL) {
 5210                                         SCTP_INP_DECR_REF(inp);
 5211                                 }
 5212                         }
 5213                         if ((stcb != NULL) && (net == NULL)) {
 5214 #ifdef INET
 5215                                 if (addr->sa_family == AF_INET) {
 5216 
 5217                                         struct sockaddr_in *sin;
 5218 
 5219                                         sin = (struct sockaddr_in *)addr;
 5220                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 5221                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5222                                                 SCTP_TCB_UNLOCK(stcb);
 5223                                                 error = EINVAL;
 5224                                                 break;
 5225                                         }
 5226                                 } else
 5227 #endif
 5228 #ifdef INET6
 5229                                 if (addr->sa_family == AF_INET6) {
 5230                                         struct sockaddr_in6 *sin6;
 5231 
 5232                                         sin6 = (struct sockaddr_in6 *)addr;
 5233                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5234                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5235                                                 SCTP_TCB_UNLOCK(stcb);
 5236                                                 error = EINVAL;
 5237                                                 break;
 5238                                         }
 5239                                 } else
 5240 #endif
 5241                                 {
 5242                                         error = EAFNOSUPPORT;
 5243                                         SCTP_TCB_UNLOCK(stcb);
 5244                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5245                                         break;
 5246                                 }
 5247                         }
 5248                         /* sanity checks */
 5249                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 5250                                 if (stcb)
 5251                                         SCTP_TCB_UNLOCK(stcb);
 5252                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5253                                 return (EINVAL);
 5254                         }
 5255                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 5256                                 if (stcb)
 5257                                         SCTP_TCB_UNLOCK(stcb);
 5258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5259                                 return (EINVAL);
 5260                         }
 5261                         if (stcb != NULL) {
 5262                                 /************************TCB SPECIFIC SET ******************/
 5263                                 if (net != NULL) {
 5264                                         /************************NET SPECIFIC SET ******************/
 5265                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5266                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 5267                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
 5268                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5269                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 5270                                                 }
 5271                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5272                                         }
 5273                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5274                                                 if (paddrp->spp_hbinterval) {
 5275                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
 5276                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5277                                                         net->heart_beat_delay = 0;
 5278                                                 }
 5279                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5280                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 5281                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5282                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5283                                         }
 5284                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 5285                                                 /* on demand HB */
 5286                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5287                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 5288                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5289                                         }
 5290                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 5291                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5292                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5293                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
 5294                                                 }
 5295                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5296                                                 net->mtu = paddrp->spp_pathmtu;
 5297                                                 switch (net->ro._l_addr.sa.sa_family) {
 5298 #ifdef INET
 5299                                                 case AF_INET:
 5300                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
 5301                                                         break;
 5302 #endif
 5303 #ifdef INET6
 5304                                                 case AF_INET6:
 5305                                                         net->mtu += SCTP_MIN_OVERHEAD;
 5306                                                         break;
 5307 #endif
 5308                                                 default:
 5309                                                         break;
 5310                                                 }
 5311                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 5312                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
 5313                                                 }
 5314                                         }
 5315                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5316                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5317                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5318                                                 }
 5319                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5320                                         }
 5321                                         if (paddrp->spp_pathmaxrxt) {
 5322                                                 if (net->dest_state & SCTP_ADDR_PF) {
 5323                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5324                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 5325                                                         }
 5326                                                 } else {
 5327                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5328                                                             (net->error_count > net->pf_threshold)) {
 5329                                                                 net->dest_state |= SCTP_ADDR_PF;
 5330                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5331                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5332                                                                     stcb->sctp_ep, stcb, net,
 5333                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
 5334                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5335                                                         }
 5336                                                 }
 5337                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5338                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5339                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5340                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5341                                                         }
 5342                                                 } else {
 5343                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5344                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 5345                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5346                                                         }
 5347                                                 }
 5348                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 5349                                         }
 5350                                         if (paddrp->spp_flags & SPP_DSCP) {
 5351                                                 net->dscp = paddrp->spp_dscp & 0xfc;
 5352                                                 net->dscp |= 0x01;
 5353                                         }
 5354 #ifdef INET6
 5355                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5356                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 5357                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5358                                                         net->flowlabel |= 0x80000000;
 5359                                                 }
 5360                                         }
 5361 #endif
 5362                                 } else {
 5363                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 5364                                         if (paddrp->spp_pathmaxrxt != 0) {
 5365                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 5366                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5367                                                         if (net->dest_state & SCTP_ADDR_PF) {
 5368                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5369                                                                         net->dest_state &= ~SCTP_ADDR_PF;
 5370                                                                 }
 5371                                                         } else {
 5372                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5373                                                                     (net->error_count > net->pf_threshold)) {
 5374                                                                         net->dest_state |= SCTP_ADDR_PF;
 5375                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5376                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5377                                                                             stcb->sctp_ep, stcb, net,
 5378                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
 5379                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5380                                                                 }
 5381                                                         }
 5382                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5383                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5384                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5385                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5386                                                                 }
 5387                                                         } else {
 5388                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5389                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 5390                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5391                                                                 }
 5392                                                         }
 5393                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
 5394                                                 }
 5395                                         }
 5396                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5397                                                 if (paddrp->spp_hbinterval != 0) {
 5398                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 5399                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5400                                                         stcb->asoc.heart_beat_delay = 0;
 5401                                                 }
 5402                                                 /* Turn back on the timer */
 5403                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5404                                                         if (paddrp->spp_hbinterval != 0) {
 5405                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
 5406                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5407                                                                 net->heart_beat_delay = 0;
 5408                                                         }
 5409                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 5410                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5411                                                         }
 5412                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5413                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
 5414                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5415                                                 }
 5416                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5417                                         }
 5418                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5419                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5420                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
 5421                                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5422                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 5423                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5424                                                                             inp, stcb, net,
 5425                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
 5426                                                                 }
 5427                                                         }
 5428                                                 }
 5429                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5430                                         }
 5431                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 5432                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5433                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5434                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5435                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
 5436                                                         }
 5437                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5438                                                         net->mtu = paddrp->spp_pathmtu;
 5439                                                         switch (net->ro._l_addr.sa.sa_family) {
 5440 #ifdef INET
 5441                                                         case AF_INET:
 5442                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
 5443                                                                 break;
 5444 #endif
 5445 #ifdef INET6
 5446                                                         case AF_INET6:
 5447                                                                 net->mtu += SCTP_MIN_OVERHEAD;
 5448                                                                 break;
 5449 #endif
 5450                                                         default:
 5451                                                                 break;
 5452                                                         }
 5453                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 5454                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
 5455                                                         }
 5456                                                 }
 5457                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5458                                         }
 5459                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5460                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5461                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5462                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5463                                                         }
 5464                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5465                                                 }
 5466                                                 sctp_stcb_feature_off(inp, stcb,