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("$FreeBSD$");
   35 
   36 #include <netinet/sctp_os.h>
   37 #include <sys/proc.h>
   38 #include <netinet/sctp_pcb.h>
   39 #include <netinet/sctp_header.h>
   40 #include <netinet/sctp_var.h>
   41 #ifdef INET6
   42 #include <netinet6/sctp6_var.h>
   43 #endif
   44 #include <netinet/sctp_sysctl.h>
   45 #include <netinet/sctp_output.h>
   46 #include <netinet/sctp_uio.h>
   47 #include <netinet/sctp_asconf.h>
   48 #include <netinet/sctputil.h>
   49 #include <netinet/sctp_indata.h>
   50 #include <netinet/sctp_timer.h>
   51 #include <netinet/sctp_auth.h>
   52 #include <netinet/sctp_bsd_addr.h>
   53 #include <netinet/udp.h>
   54 
   55 
   56 
   57 extern const struct sctp_cc_functions sctp_cc_functions[];
   58 extern const struct sctp_ss_functions sctp_ss_functions[];
   59 
   60 void
   61 sctp_init(void)
   62 {
   63         u_long sb_max_adj;
   64 
   65         /* Initialize and modify the sysctled variables */
   66         sctp_init_sysctls();
   67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
   68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
   69         /*
   70          * Allow a user to take no more than 1/2 the number of clusters or
   71          * the SB_MAX whichever is smaller for the send window.
   72          */
   73         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
   74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
   75             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
   76         /*
   77          * Now for the recv window, should we take the same amount? or
   78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
   79          * now I will just copy.
   80          */
   81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
   82         SCTP_BASE_VAR(first_time) = 0;
   83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
   84         sctp_pcb_init();
   85 #if defined(SCTP_PACKET_LOGGING)
   86         SCTP_BASE_VAR(packet_log_writers) = 0;
   87         SCTP_BASE_VAR(packet_log_end) = 0;
   88         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
   89 #endif
   90 }
   91 
   92 #ifdef VIMAGE
   93 static void
   94 sctp_finish(void *unused __unused)
   95 {
   96         sctp_pcb_finish();
   97 }
   98 
   99 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
  100 #endif
  101 
  102 void
  103 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
  104 {
  105         struct sctp_tmit_chunk *chk;
  106         uint16_t overhead;
  107 
  108         /* Adjust that too */
  109         stcb->asoc.smallest_mtu = nxtsz;
  110         /* now off to subtract IP_DF flag if needed */
  111         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
  112         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
  113                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
  114         }
  115         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
  116                 if ((chk->send_size + overhead) > nxtsz) {
  117                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  118                 }
  119         }
  120         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
  121                 if ((chk->send_size + overhead) > nxtsz) {
  122                         /*
  123                          * For this guy we also mark for immediate resend
  124                          * since we sent to big of chunk
  125                          */
  126                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  127                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
  128                                 sctp_flight_size_decrease(chk);
  129                                 sctp_total_flight_decrease(stcb, chk);
  130                                 chk->sent = SCTP_DATAGRAM_RESEND;
  131                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
  132                                 chk->rec.data.doing_fast_retransmit = 0;
  133                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
  134                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
  135                                             chk->whoTo->flight_size,
  136                                             chk->book_size,
  137                                             (uint32_t)(uintptr_t)chk->whoTo,
  138                                             chk->rec.data.tsn);
  139                                 }
  140                                 /* Clear any time so NO RTT is being done */
  141                                 if (chk->do_rtt == 1) {
  142                                         chk->do_rtt = 0;
  143                                         chk->whoTo->rto_needed = 1;
  144                                 }
  145                         }
  146                 }
  147         }
  148 }
  149 
  150 #ifdef INET
  151 void
  152 sctp_notify(struct sctp_inpcb *inp,
  153     struct sctp_tcb *stcb,
  154     struct sctp_nets *net,
  155     uint8_t icmp_type,
  156     uint8_t icmp_code,
  157     uint16_t ip_len,
  158     uint32_t next_mtu)
  159 {
  160 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  161         struct socket *so;
  162 #endif
  163         int timer_stopped;
  164 
  165         if (icmp_type != ICMP_UNREACH) {
  166                 /* We only care about unreachable */
  167                 SCTP_TCB_UNLOCK(stcb);
  168                 return;
  169         }
  170         if ((icmp_code == ICMP_UNREACH_NET) ||
  171             (icmp_code == ICMP_UNREACH_HOST) ||
  172             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  173             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  174             (icmp_code == ICMP_UNREACH_ISOLATED) ||
  175             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  176             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  177             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  178                 /* Mark the net unreachable. */
  179                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  180                         /* OK, that destination is NOT reachable. */
  181                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  182                         net->dest_state &= ~SCTP_ADDR_PF;
  183                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  184                             stcb, 0,
  185                             (void *)net, SCTP_SO_NOT_LOCKED);
  186                 }
  187                 SCTP_TCB_UNLOCK(stcb);
  188         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
  189             (icmp_code == ICMP_UNREACH_PORT)) {
  190                 /* Treat it like an ABORT. */
  191                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
  192 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  193                 so = SCTP_INP_SO(inp);
  194                 atomic_add_int(&stcb->asoc.refcnt, 1);
  195                 SCTP_TCB_UNLOCK(stcb);
  196                 SCTP_SOCKET_LOCK(so, 1);
  197                 SCTP_TCB_LOCK(stcb);
  198                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  199 #endif
  200                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  201                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  202 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  203                 SCTP_SOCKET_UNLOCK(so, 1);
  204                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  205 #endif
  206                 /* no need to unlock here, since the TCB is gone */
  207         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
  208                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
  209                         SCTP_TCB_UNLOCK(stcb);
  210                         return;
  211                 }
  212                 /* Find the next (smaller) MTU */
  213                 if (next_mtu == 0) {
  214                         /*
  215                          * Old type router that does not tell us what the
  216                          * next MTU is. Rats we will have to guess (in a
  217                          * educated fashion of course).
  218                          */
  219                         next_mtu = sctp_get_prev_mtu(ip_len);
  220                 }
  221                 /* Stop the PMTU timer. */
  222                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  223                         timer_stopped = 1;
  224                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  225                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  226                 } else {
  227                         timer_stopped = 0;
  228                 }
  229                 /* Update the path MTU. */
  230                 if (net->port) {
  231                         next_mtu -= sizeof(struct udphdr);
  232                 }
  233                 if (net->mtu > next_mtu) {
  234                         net->mtu = next_mtu;
  235                         if (net->port) {
  236                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
  237                         } else {
  238                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
  239                         }
  240                 }
  241                 /* Update the association MTU */
  242                 if (stcb->asoc.smallest_mtu > next_mtu) {
  243                         sctp_pathmtu_adjustment(stcb, next_mtu);
  244                 }
  245                 /* Finally, start the PMTU timer if it was running before. */
  246                 if (timer_stopped) {
  247                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  248                 }
  249                 SCTP_TCB_UNLOCK(stcb);
  250         } else {
  251                 SCTP_TCB_UNLOCK(stcb);
  252         }
  253 }
  254 
  255 void
  256 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
  257 {
  258         struct ip *outer_ip;
  259         struct ip *inner_ip;
  260         struct sctphdr *sh;
  261         struct icmp *icmp;
  262         struct sctp_inpcb *inp;
  263         struct sctp_tcb *stcb;
  264         struct sctp_nets *net;
  265         struct sctp_init_chunk *ch;
  266         struct sockaddr_in src, dst;
  267 
  268         if (sa->sa_family != AF_INET ||
  269             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  270                 return;
  271         }
  272         if (PRC_IS_REDIRECT(cmd)) {
  273                 vip = NULL;
  274         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  275                 return;
  276         }
  277         if (vip != NULL) {
  278                 inner_ip = (struct ip *)vip;
  279                 icmp = (struct icmp *)((caddr_t)inner_ip -
  280                     (sizeof(struct icmp) - sizeof(struct ip)));
  281                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
  282                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
  283                 memset(&src, 0, sizeof(struct sockaddr_in));
  284                 src.sin_family = AF_INET;
  285                 src.sin_len = sizeof(struct sockaddr_in);
  286                 src.sin_port = sh->src_port;
  287                 src.sin_addr = inner_ip->ip_src;
  288                 memset(&dst, 0, sizeof(struct sockaddr_in));
  289                 dst.sin_family = AF_INET;
  290                 dst.sin_len = sizeof(struct sockaddr_in);
  291                 dst.sin_port = sh->dest_port;
  292                 dst.sin_addr = inner_ip->ip_dst;
  293                 /*
  294                  * 'dst' holds the dest of the packet that failed to be
  295                  * sent. 'src' holds our local endpoint address. Thus we
  296                  * reverse the dst and the src in the lookup.
  297                  */
  298                 inp = NULL;
  299                 net = NULL;
  300                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
  301                     (struct sockaddr *)&src,
  302                     &inp, &net, 1,
  303                     SCTP_DEFAULT_VRFID);
  304                 if ((stcb != NULL) &&
  305                     (net != NULL) &&
  306                     (inp != NULL)) {
  307                         /* Check the verification tag */
  308                         if (ntohl(sh->v_tag) != 0) {
  309                                 /*
  310                                  * This must be the verification tag used
  311                                  * for sending out packets. We don't
  312                                  * consider packets reflecting the
  313                                  * verification tag.
  314                                  */
  315                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
  316                                         SCTP_TCB_UNLOCK(stcb);
  317                                         return;
  318                                 }
  319                         } else {
  320                                 if (ntohs(outer_ip->ip_len) >=
  321                                     sizeof(struct ip) +
  322                                     8 + (inner_ip->ip_hl << 2) + 20) {
  323                                         /*
  324                                          * In this case we can check if we
  325                                          * got an INIT chunk and if the
  326                                          * initiate tag matches.
  327                                          */
  328                                         ch = (struct sctp_init_chunk *)(sh + 1);
  329                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
  330                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
  331                                                 SCTP_TCB_UNLOCK(stcb);
  332                                                 return;
  333                                         }
  334                                 } else {
  335                                         SCTP_TCB_UNLOCK(stcb);
  336                                         return;
  337                                 }
  338                         }
  339                         sctp_notify(inp, stcb, net,
  340                             icmp->icmp_type,
  341                             icmp->icmp_code,
  342                             ntohs(inner_ip->ip_len),
  343                             (uint32_t)ntohs(icmp->icmp_nextmtu));
  344                 } else {
  345                         if ((stcb == NULL) && (inp != NULL)) {
  346                                 /* reduce ref-count */
  347                                 SCTP_INP_WLOCK(inp);
  348                                 SCTP_INP_DECR_REF(inp);
  349                                 SCTP_INP_WUNLOCK(inp);
  350                         }
  351                         if (stcb) {
  352                                 SCTP_TCB_UNLOCK(stcb);
  353                         }
  354                 }
  355         }
  356         return;
  357 }
  358 #endif
  359 
  360 static int
  361 sctp_getcred(SYSCTL_HANDLER_ARGS)
  362 {
  363         struct xucred xuc;
  364         struct sockaddr_in addrs[2];
  365         struct sctp_inpcb *inp;
  366         struct sctp_nets *net;
  367         struct sctp_tcb *stcb;
  368         int error;
  369         uint32_t vrf_id;
  370 
  371         /* FIX, for non-bsd is this right? */
  372         vrf_id = SCTP_DEFAULT_VRFID;
  373 
  374         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  375 
  376         if (error)
  377                 return (error);
  378 
  379         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  380         if (error)
  381                 return (error);
  382 
  383         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
  384             sintosa(&addrs[0]),
  385             &inp, &net, 1, vrf_id);
  386         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  387                 if ((inp != NULL) && (stcb == NULL)) {
  388                         /* reduce ref-count */
  389                         SCTP_INP_WLOCK(inp);
  390                         SCTP_INP_DECR_REF(inp);
  391                         goto cred_can_cont;
  392                 }
  393 
  394                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  395                 error = ENOENT;
  396                 goto out;
  397         }
  398         SCTP_TCB_UNLOCK(stcb);
  399         /*
  400          * We use the write lock here, only since in the error leg we need
  401          * it. If we used RLOCK, then we would have to
  402          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  403          * Better to use higher wlock.
  404          */
  405         SCTP_INP_WLOCK(inp);
  406 cred_can_cont:
  407         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  408         if (error) {
  409                 SCTP_INP_WUNLOCK(inp);
  410                 goto out;
  411         }
  412         cru2x(inp->sctp_socket->so_cred, &xuc);
  413         SCTP_INP_WUNLOCK(inp);
  414         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  415 out:
  416         return (error);
  417 }
  418 
  419 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  420     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  421 
  422 
  423 #ifdef INET
  424 static void
  425 sctp_abort(struct socket *so)
  426 {
  427         struct sctp_inpcb *inp;
  428         uint32_t flags;
  429 
  430         inp = (struct sctp_inpcb *)so->so_pcb;
  431         if (inp == NULL) {
  432                 return;
  433         }
  434 
  435 sctp_must_try_again:
  436         flags = inp->sctp_flags;
  437 #ifdef SCTP_LOG_CLOSING
  438         sctp_log_closing(inp, NULL, 17);
  439 #endif
  440         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  441             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  442 #ifdef SCTP_LOG_CLOSING
  443                 sctp_log_closing(inp, NULL, 16);
  444 #endif
  445                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  446                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  447                 SOCK_LOCK(so);
  448                 SCTP_SB_CLEAR(so->so_snd);
  449                 /*
  450                  * same for the rcv ones, they are only here for the
  451                  * accounting/select.
  452                  */
  453                 SCTP_SB_CLEAR(so->so_rcv);
  454 
  455                 /* Now null out the reference, we are completely detached. */
  456                 so->so_pcb = NULL;
  457                 SOCK_UNLOCK(so);
  458         } else {
  459                 flags = inp->sctp_flags;
  460                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  461                         goto sctp_must_try_again;
  462                 }
  463         }
  464         return;
  465 }
  466 
  467 static int
  468 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
  469 {
  470         struct sctp_inpcb *inp;
  471         struct inpcb *ip_inp;
  472         int error;
  473         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  474 
  475         inp = (struct sctp_inpcb *)so->so_pcb;
  476         if (inp != NULL) {
  477                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  478                 return (EINVAL);
  479         }
  480         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  481                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  482                 if (error) {
  483                         return (error);
  484                 }
  485         }
  486         error = sctp_inpcb_alloc(so, vrf_id);
  487         if (error) {
  488                 return (error);
  489         }
  490         inp = (struct sctp_inpcb *)so->so_pcb;
  491         SCTP_INP_WLOCK(inp);
  492         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  493         ip_inp = &inp->ip_inp.inp;
  494         ip_inp->inp_vflag |= INP_IPV4;
  495         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
  496         SCTP_INP_WUNLOCK(inp);
  497         return (0);
  498 }
  499 
  500 static int
  501 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  502 {
  503         struct sctp_inpcb *inp;
  504 
  505         inp = (struct sctp_inpcb *)so->so_pcb;
  506         if (inp == NULL) {
  507                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  508                 return (EINVAL);
  509         }
  510         if (addr != NULL) {
  511                 if ((addr->sa_family != AF_INET) ||
  512                     (addr->sa_len != sizeof(struct sockaddr_in))) {
  513                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  514                         return (EINVAL);
  515                 }
  516         }
  517         return (sctp_inpcb_bind(so, addr, NULL, p));
  518 }
  519 
  520 #endif
  521 void
  522 sctp_close(struct socket *so)
  523 {
  524         struct sctp_inpcb *inp;
  525         uint32_t flags;
  526 
  527         inp = (struct sctp_inpcb *)so->so_pcb;
  528         if (inp == NULL)
  529                 return;
  530 
  531         /*
  532          * Inform all the lower layer assoc that we are done.
  533          */
  534 sctp_must_try_again:
  535         flags = inp->sctp_flags;
  536 #ifdef SCTP_LOG_CLOSING
  537         sctp_log_closing(inp, NULL, 17);
  538 #endif
  539         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  540             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  541                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  542                     (so->so_rcv.sb_cc > 0)) {
  543 #ifdef SCTP_LOG_CLOSING
  544                         sctp_log_closing(inp, NULL, 13);
  545 #endif
  546                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  547                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  548                 } else {
  549 #ifdef SCTP_LOG_CLOSING
  550                         sctp_log_closing(inp, NULL, 14);
  551 #endif
  552                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  553                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  554                 }
  555                 /*
  556                  * The socket is now detached, no matter what the state of
  557                  * the SCTP association.
  558                  */
  559                 SOCK_LOCK(so);
  560                 SCTP_SB_CLEAR(so->so_snd);
  561                 /*
  562                  * same for the rcv ones, they are only here for the
  563                  * accounting/select.
  564                  */
  565                 SCTP_SB_CLEAR(so->so_rcv);
  566 
  567                 /* Now null out the reference, we are completely detached. */
  568                 so->so_pcb = NULL;
  569                 SOCK_UNLOCK(so);
  570         } else {
  571                 flags = inp->sctp_flags;
  572                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  573                         goto sctp_must_try_again;
  574                 }
  575         }
  576         return;
  577 }
  578 
  579 
  580 int
  581 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  582     struct mbuf *control, struct thread *p);
  583 
  584 
  585 int
  586 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  587     struct mbuf *control, struct thread *p)
  588 {
  589         struct sctp_inpcb *inp;
  590         int error;
  591 
  592         inp = (struct sctp_inpcb *)so->so_pcb;
  593         if (inp == NULL) {
  594                 if (control) {
  595                         sctp_m_freem(control);
  596                         control = NULL;
  597                 }
  598                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  599                 sctp_m_freem(m);
  600                 return (EINVAL);
  601         }
  602         /* Got to have an to address if we are NOT a connected socket */
  603         if ((addr == NULL) &&
  604             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  605             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
  606                 goto connected_type;
  607         } else if (addr == NULL) {
  608                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  609                 error = EDESTADDRREQ;
  610                 sctp_m_freem(m);
  611                 if (control) {
  612                         sctp_m_freem(control);
  613                         control = NULL;
  614                 }
  615                 return (error);
  616         }
  617 #ifdef INET6
  618         if (addr->sa_family != AF_INET) {
  619                 /* must be a v4 address! */
  620                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  621                 sctp_m_freem(m);
  622                 if (control) {
  623                         sctp_m_freem(control);
  624                         control = NULL;
  625                 }
  626                 error = EDESTADDRREQ;
  627                 return (error);
  628         }
  629 #endif                          /* INET6 */
  630 connected_type:
  631         /* now what about control */
  632         if (control) {
  633                 if (inp->control) {
  634                         sctp_m_freem(inp->control);
  635                         inp->control = NULL;
  636                 }
  637                 inp->control = control;
  638         }
  639         /* Place the data */
  640         if (inp->pkt) {
  641                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  642                 inp->pkt_last = m;
  643         } else {
  644                 inp->pkt_last = inp->pkt = m;
  645         }
  646         if (
  647         /* FreeBSD uses a flag passed */
  648             ((flags & PRUS_MORETOCOME) == 0)
  649             ) {
  650                 /*
  651                  * note with the current version this code will only be used
  652                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  653                  * re-defining sosend to use the sctp_sosend. One can
  654                  * optionally switch back to this code (by changing back the
  655                  * definitions) but this is not advisable. This code is used
  656                  * by FreeBSD when sending a file with sendfile() though.
  657                  */
  658                 int ret;
  659 
  660                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  661                 inp->pkt = NULL;
  662                 inp->control = NULL;
  663                 return (ret);
  664         } else {
  665                 return (0);
  666         }
  667 }
  668 
  669 int
  670 sctp_disconnect(struct socket *so)
  671 {
  672         struct sctp_inpcb *inp;
  673 
  674         inp = (struct sctp_inpcb *)so->so_pcb;
  675         if (inp == NULL) {
  676                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  677                 return (ENOTCONN);
  678         }
  679         SCTP_INP_RLOCK(inp);
  680         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  681             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  682                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
  683                         /* No connection */
  684                         SCTP_INP_RUNLOCK(inp);
  685                         return (0);
  686                 } else {
  687                         struct sctp_association *asoc;
  688                         struct sctp_tcb *stcb;
  689 
  690                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  691                         if (stcb == NULL) {
  692                                 SCTP_INP_RUNLOCK(inp);
  693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  694                                 return (EINVAL);
  695                         }
  696                         SCTP_TCB_LOCK(stcb);
  697                         asoc = &stcb->asoc;
  698                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  699                                 /* We are about to be freed, out of here */
  700                                 SCTP_TCB_UNLOCK(stcb);
  701                                 SCTP_INP_RUNLOCK(inp);
  702                                 return (0);
  703                         }
  704                         if (((so->so_options & SO_LINGER) &&
  705                             (so->so_linger == 0)) ||
  706                             (so->so_rcv.sb_cc > 0)) {
  707                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
  708                                         /* Left with Data unread */
  709                                         struct mbuf *op_err;
  710 
  711                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  712                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  713                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  714                                 }
  715                                 SCTP_INP_RUNLOCK(inp);
  716                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
  717                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  718                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  719                                 }
  720                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  721                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  722                                 /* No unlock tcb assoc is gone */
  723                                 return (0);
  724                         }
  725                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  726                             TAILQ_EMPTY(&asoc->sent_queue) &&
  727                             (asoc->stream_queue_cnt == 0)) {
  728                                 /* there is nothing queued to send, so done */
  729                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  730                                         goto abort_anyway;
  731                                 }
  732                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
  733                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  734                                         /* only send SHUTDOWN 1st time thru */
  735                                         struct sctp_nets *netp;
  736 
  737                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
  738                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  739                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  740                                         }
  741                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
  742                                         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
  743                                         sctp_stop_timers_for_shutdown(stcb);
  744                                         if (stcb->asoc.alternate) {
  745                                                 netp = stcb->asoc.alternate;
  746                                         } else {
  747                                                 netp = stcb->asoc.primary_destination;
  748                                         }
  749                                         sctp_send_shutdown(stcb, netp);
  750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  751                                             stcb->sctp_ep, stcb, netp);
  752                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  753                                             stcb->sctp_ep, stcb, netp);
  754                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  755                                 }
  756                         } else {
  757                                 /*
  758                                  * we still got (or just got) data to send,
  759                                  * so set SHUTDOWN_PENDING
  760                                  */
  761                                 /*
  762                                  * XXX sockets draft says that SCTP_EOF
  763                                  * should be sent with no data. currently,
  764                                  * we will allow user data to be sent first
  765                                  * and move to SHUTDOWN-PENDING
  766                                  */
  767                                 struct sctp_nets *netp;
  768 
  769                                 if (stcb->asoc.alternate) {
  770                                         netp = stcb->asoc.alternate;
  771                                 } else {
  772                                         netp = stcb->asoc.primary_destination;
  773                                 }
  774 
  775                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
  776                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  777                                     netp);
  778                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  779                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
  780                                 }
  781                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  782                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  783                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  784                                         struct mbuf *op_err;
  785 
  786                         abort_anyway:
  787                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  788                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  789                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  790                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  791                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
  792                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  793                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  794                                         }
  795                                         SCTP_INP_RUNLOCK(inp);
  796                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  797                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  798                                         return (0);
  799                                 } else {
  800                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  801                                 }
  802                         }
  803                         soisdisconnecting(so);
  804                         SCTP_TCB_UNLOCK(stcb);
  805                         SCTP_INP_RUNLOCK(inp);
  806                         return (0);
  807                 }
  808                 /* not reached */
  809         } else {
  810                 /* UDP model does not support this */
  811                 SCTP_INP_RUNLOCK(inp);
  812                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  813                 return (EOPNOTSUPP);
  814         }
  815 }
  816 
  817 int
  818 sctp_flush(struct socket *so, int how)
  819 {
  820         /*
  821          * We will just clear out the values and let subsequent close clear
  822          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  823          * they will not be able to read the data, the socket will block
  824          * that from happening.
  825          */
  826         struct sctp_inpcb *inp;
  827 
  828         inp = (struct sctp_inpcb *)so->so_pcb;
  829         if (inp == NULL) {
  830                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  831                 return (EINVAL);
  832         }
  833         SCTP_INP_RLOCK(inp);
  834         /* For the 1 to many model this does nothing */
  835         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  836                 SCTP_INP_RUNLOCK(inp);
  837                 return (0);
  838         }
  839         SCTP_INP_RUNLOCK(inp);
  840         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  841                 /*
  842                  * First make sure the sb will be happy, we don't use these
  843                  * except maybe the count
  844                  */
  845                 SCTP_INP_WLOCK(inp);
  846                 SCTP_INP_READ_LOCK(inp);
  847                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
  848                 SCTP_INP_READ_UNLOCK(inp);
  849                 SCTP_INP_WUNLOCK(inp);
  850                 so->so_rcv.sb_cc = 0;
  851                 so->so_rcv.sb_mbcnt = 0;
  852                 so->so_rcv.sb_mb = NULL;
  853         }
  854         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  855                 /*
  856                  * First make sure the sb will be happy, we don't use these
  857                  * except maybe the count
  858                  */
  859                 so->so_snd.sb_cc = 0;
  860                 so->so_snd.sb_mbcnt = 0;
  861                 so->so_snd.sb_mb = NULL;
  862 
  863         }
  864         return (0);
  865 }
  866 
  867 int
  868 sctp_shutdown(struct socket *so)
  869 {
  870         struct sctp_inpcb *inp;
  871 
  872         inp = (struct sctp_inpcb *)so->so_pcb;
  873         if (inp == NULL) {
  874                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  875                 return (EINVAL);
  876         }
  877         SCTP_INP_RLOCK(inp);
  878         /* For UDP model this is a invalid call */
  879         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  880             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
  881                 /* Restore the flags that the soshutdown took away. */
  882                 SOCKBUF_LOCK(&so->so_rcv);
  883                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  884                 SOCKBUF_UNLOCK(&so->so_rcv);
  885                 /* This proc will wakeup for read and do nothing (I hope) */
  886                 SCTP_INP_RUNLOCK(inp);
  887                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  888                 return (EOPNOTSUPP);
  889         } else {
  890                 /*
  891                  * Ok, if we reach here its the TCP model and it is either a
  892                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
  893                  * against it.
  894                  */
  895                 struct sctp_tcb *stcb;
  896                 struct sctp_association *asoc;
  897                 struct sctp_nets *netp;
  898 
  899                 if ((so->so_state &
  900                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  901                         SCTP_INP_RUNLOCK(inp);
  902                         return (ENOTCONN);
  903                 }
  904                 socantsendmore(so);
  905 
  906                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  907                 if (stcb == NULL) {
  908                         /*
  909                          * Ok, we hit the case that the shutdown call was
  910                          * made after an abort or something. Nothing to do
  911                          * now.
  912                          */
  913                         SCTP_INP_RUNLOCK(inp);
  914                         return (0);
  915                 }
  916                 SCTP_TCB_LOCK(stcb);
  917                 asoc = &stcb->asoc;
  918                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  919                         SCTP_TCB_UNLOCK(stcb);
  920                         SCTP_INP_RUNLOCK(inp);
  921                         return (0);
  922                 }
  923                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
  924                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
  925                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
  926                         /*
  927                          * If we are not in or before ESTABLISHED, there is
  928                          * no protocol action required.
  929                          */
  930                         SCTP_TCB_UNLOCK(stcb);
  931                         SCTP_INP_RUNLOCK(inp);
  932                         return (0);
  933                 }
  934                 if (stcb->asoc.alternate) {
  935                         netp = stcb->asoc.alternate;
  936                 } else {
  937                         netp = stcb->asoc.primary_destination;
  938                 }
  939                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
  940                     TAILQ_EMPTY(&asoc->send_queue) &&
  941                     TAILQ_EMPTY(&asoc->sent_queue) &&
  942                     (asoc->stream_queue_cnt == 0)) {
  943                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  944                                 goto abort_anyway;
  945                         }
  946                         /* there is nothing queued to send, so I'm done... */
  947                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  948                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
  949                         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
  950                         sctp_stop_timers_for_shutdown(stcb);
  951                         sctp_send_shutdown(stcb, netp);
  952                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  953                             stcb->sctp_ep, stcb, netp);
  954                 } else {
  955                         /*
  956                          * We still got (or just got) data to send, so set
  957                          * SHUTDOWN_PENDING.
  958                          */
  959                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
  960                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  961                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
  962                         }
  963                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  964                             TAILQ_EMPTY(&asoc->sent_queue) &&
  965                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  966                                 struct mbuf *op_err;
  967 
  968                 abort_anyway:
  969                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  970                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
  971                                 SCTP_INP_RUNLOCK(inp);
  972                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
  973                                     op_err, SCTP_SO_LOCKED);
  974                                 return (0);
  975                         }
  976                 }
  977                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
  978                 /*
  979                  * XXX: Why do this in the case where we have still data
  980                  * queued?
  981                  */
  982                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  983                 SCTP_TCB_UNLOCK(stcb);
  984                 SCTP_INP_RUNLOCK(inp);
  985                 return (0);
  986         }
  987 }
  988 
  989 /*
  990  * copies a "user" presentable address and removes embedded scope, etc.
  991  * returns 0 on success, 1 on error
  992  */
  993 static uint32_t
  994 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
  995 {
  996 #ifdef INET6
  997         struct sockaddr_in6 lsa6;
  998 
  999         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 1000             &lsa6);
 1001 #endif
 1002         memcpy(ss, sa, sa->sa_len);
 1003         return (0);
 1004 }
 1005 
 1006 
 1007 
 1008 /*
 1009  * NOTE: assumes addr lock is held
 1010  */
 1011 static size_t
 1012 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1013     struct sctp_tcb *stcb,
 1014     size_t limit,
 1015     struct sockaddr_storage *sas,
 1016     uint32_t vrf_id)
 1017 {
 1018         struct sctp_ifn *sctp_ifn;
 1019         struct sctp_ifa *sctp_ifa;
 1020         size_t actual;
 1021         int loopback_scope;
 1022 #if defined(INET)
 1023         int ipv4_local_scope, ipv4_addr_legal;
 1024 #endif
 1025 #if defined(INET6)
 1026         int local_scope, site_scope, ipv6_addr_legal;
 1027 #endif
 1028         struct sctp_vrf *vrf;
 1029 
 1030         actual = 0;
 1031         if (limit == 0)
 1032                 return (actual);
 1033 
 1034         if (stcb) {
 1035                 /* Turn on all the appropriate scope */
 1036                 loopback_scope = stcb->asoc.scope.loopback_scope;
 1037 #if defined(INET)
 1038                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 1039                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 1040 #endif
 1041 #if defined(INET6)
 1042                 local_scope = stcb->asoc.scope.local_scope;
 1043                 site_scope = stcb->asoc.scope.site_scope;
 1044                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 1045 #endif
 1046         } else {
 1047                 /* Use generic values for endpoints. */
 1048                 loopback_scope = 1;
 1049 #if defined(INET)
 1050                 ipv4_local_scope = 1;
 1051 #endif
 1052 #if defined(INET6)
 1053                 local_scope = 1;
 1054                 site_scope = 1;
 1055 #endif
 1056                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1057 #if defined(INET6)
 1058                         ipv6_addr_legal = 1;
 1059 #endif
 1060 #if defined(INET)
 1061                         if (SCTP_IPV6_V6ONLY(inp)) {
 1062                                 ipv4_addr_legal = 0;
 1063                         } else {
 1064                                 ipv4_addr_legal = 1;
 1065                         }
 1066 #endif
 1067                 } else {
 1068 #if defined(INET6)
 1069                         ipv6_addr_legal = 0;
 1070 #endif
 1071 #if defined(INET)
 1072                         ipv4_addr_legal = 1;
 1073 #endif
 1074                 }
 1075         }
 1076         vrf = sctp_find_vrf(vrf_id);
 1077         if (vrf == NULL) {
 1078                 return (0);
 1079         }
 1080         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1081                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1082                         if ((loopback_scope == 0) &&
 1083                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1084                                 /* Skip loopback if loopback_scope not set */
 1085                                 continue;
 1086                         }
 1087                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1088                                 if (stcb) {
 1089                                         /*
 1090                                          * For the BOUND-ALL case, the list
 1091                                          * associated with a TCB is Always
 1092                                          * considered a reverse list.. i.e.
 1093                                          * it lists addresses that are NOT
 1094                                          * part of the association. If this
 1095                                          * is one of those we must skip it.
 1096                                          */
 1097                                         if (sctp_is_addr_restricted(stcb,
 1098                                             sctp_ifa)) {
 1099                                                 continue;
 1100                                         }
 1101                                 }
 1102                                 switch (sctp_ifa->address.sa.sa_family) {
 1103 #ifdef INET
 1104                                 case AF_INET:
 1105                                         if (ipv4_addr_legal) {
 1106                                                 struct sockaddr_in *sin;
 1107 
 1108                                                 sin = &sctp_ifa->address.sin;
 1109                                                 if (sin->sin_addr.s_addr == 0) {
 1110                                                         /*
 1111                                                          * we skip
 1112                                                          * unspecifed
 1113                                                          * addresses
 1114                                                          */
 1115                                                         continue;
 1116                                                 }
 1117                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 1118                                                     &sin->sin_addr) != 0) {
 1119                                                         continue;
 1120                                                 }
 1121                                                 if ((ipv4_local_scope == 0) &&
 1122                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1123                                                         continue;
 1124                                                 }
 1125 #ifdef INET6
 1126                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1127                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
 1128                                                                 return (actual);
 1129                                                         }
 1130                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1131                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1132                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1133                                                         actual += sizeof(struct sockaddr_in6);
 1134                                                 } else {
 1135 #endif
 1136                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
 1137                                                                 return (actual);
 1138                                                         }
 1139                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
 1140                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1141                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
 1142                                                         actual += sizeof(struct sockaddr_in);
 1143 #ifdef INET6
 1144                                                 }
 1145 #endif
 1146                                         } else {
 1147                                                 continue;
 1148                                         }
 1149                                         break;
 1150 #endif
 1151 #ifdef INET6
 1152                                 case AF_INET6:
 1153                                         if (ipv6_addr_legal) {
 1154                                                 struct sockaddr_in6 *sin6;
 1155 
 1156                                                 sin6 = &sctp_ifa->address.sin6;
 1157                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1158                                                         /*
 1159                                                          * we skip
 1160                                                          * unspecifed
 1161                                                          * addresses
 1162                                                          */
 1163                                                         continue;
 1164                                                 }
 1165                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 1166                                                     &sin6->sin6_addr) != 0) {
 1167                                                         continue;
 1168                                                 }
 1169                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1170                                                         if (local_scope == 0)
 1171                                                                 continue;
 1172                                                         if (sin6->sin6_scope_id == 0) {
 1173                                                                 if (sa6_recoverscope(sin6) != 0)
 1174                                                                         /*
 1175                                                                          *
 1176                                                                          * bad
 1177                                                                          * link
 1178                                                                          *
 1179                                                                          * local
 1180                                                                          *
 1181                                                                          * address
 1182                                                                          */
 1183                                                                         continue;
 1184                                                         }
 1185                                                 }
 1186                                                 if ((site_scope == 0) &&
 1187                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1188                                                         continue;
 1189                                                 }
 1190                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
 1191                                                         return (actual);
 1192                                                 }
 1193                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
 1194                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1195                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1196                                                 actual += sizeof(struct sockaddr_in6);
 1197                                         } else {
 1198                                                 continue;
 1199                                         }
 1200                                         break;
 1201 #endif
 1202                                 default:
 1203                                         /* TSNH */
 1204                                         break;
 1205                                 }
 1206                         }
 1207                 }
 1208         } else {
 1209                 struct sctp_laddr *laddr;
 1210                 size_t sa_len;
 1211 
 1212                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1213                         if (stcb) {
 1214                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1215                                         continue;
 1216                                 }
 1217                         }
 1218                         sa_len = laddr->ifa->address.sa.sa_len;
 1219                         if (actual + sa_len > limit) {
 1220                                 return (actual);
 1221                         }
 1222                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1223                                 continue;
 1224                         switch (laddr->ifa->address.sa.sa_family) {
 1225 #ifdef INET
 1226                         case AF_INET:
 1227                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1228                                 break;
 1229 #endif
 1230 #ifdef INET6
 1231                         case AF_INET6:
 1232                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1233                                 break;
 1234 #endif
 1235                         default:
 1236                                 /* TSNH */
 1237                                 break;
 1238                         }
 1239                         sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
 1240                         actual += sa_len;
 1241                 }
 1242         }
 1243         return (actual);
 1244 }
 1245 
 1246 static size_t
 1247 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1248     struct sctp_tcb *stcb,
 1249     size_t limit,
 1250     struct sockaddr_storage *sas)
 1251 {
 1252         size_t size = 0;
 1253 
 1254         SCTP_IPI_ADDR_RLOCK();
 1255         /* fill up addresses for the endpoint's default vrf */
 1256         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1257             inp->def_vrf_id);
 1258         SCTP_IPI_ADDR_RUNLOCK();
 1259         return (size);
 1260 }
 1261 
 1262 /*
 1263  * NOTE: assumes addr lock is held
 1264  */
 1265 static int
 1266 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1267 {
 1268         int cnt = 0;
 1269         struct sctp_vrf *vrf = NULL;
 1270 
 1271         /*
 1272          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1273          * number of addresses that you COULD get. In reality the sub-set
 1274          * bound may have an exclusion list for a given TCB OR in the
 1275          * bound-all case a TCB may NOT include the loopback or other
 1276          * addresses as well.
 1277          */
 1278         vrf = sctp_find_vrf(vrf_id);
 1279         if (vrf == NULL) {
 1280                 return (0);
 1281         }
 1282         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1283                 struct sctp_ifn *sctp_ifn;
 1284                 struct sctp_ifa *sctp_ifa;
 1285 
 1286                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1287                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1288                                 /* Count them if they are the right type */
 1289                                 switch (sctp_ifa->address.sa.sa_family) {
 1290 #ifdef INET
 1291                                 case AF_INET:
 1292 #ifdef INET6
 1293                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1294                                                 cnt += sizeof(struct sockaddr_in6);
 1295                                         else
 1296                                                 cnt += sizeof(struct sockaddr_in);
 1297 #else
 1298                                         cnt += sizeof(struct sockaddr_in);
 1299 #endif
 1300                                         break;
 1301 #endif
 1302 #ifdef INET6
 1303                                 case AF_INET6:
 1304                                         cnt += sizeof(struct sockaddr_in6);
 1305                                         break;
 1306 #endif
 1307                                 default:
 1308                                         break;
 1309                                 }
 1310                         }
 1311                 }
 1312         } else {
 1313                 struct sctp_laddr *laddr;
 1314 
 1315                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1316                         switch (laddr->ifa->address.sa.sa_family) {
 1317 #ifdef INET
 1318                         case AF_INET:
 1319 #ifdef INET6
 1320                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1321                                         cnt += sizeof(struct sockaddr_in6);
 1322                                 else
 1323                                         cnt += sizeof(struct sockaddr_in);
 1324 #else
 1325                                 cnt += sizeof(struct sockaddr_in);
 1326 #endif
 1327                                 break;
 1328 #endif
 1329 #ifdef INET6
 1330                         case AF_INET6:
 1331                                 cnt += sizeof(struct sockaddr_in6);
 1332                                 break;
 1333 #endif
 1334                         default:
 1335                                 break;
 1336                         }
 1337                 }
 1338         }
 1339         return (cnt);
 1340 }
 1341 
 1342 static int
 1343 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1344 {
 1345         int cnt = 0;
 1346 
 1347         SCTP_IPI_ADDR_RLOCK();
 1348         /* count addresses for the endpoint's default VRF */
 1349         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1350         SCTP_IPI_ADDR_RUNLOCK();
 1351         return (cnt);
 1352 }
 1353 
 1354 static int
 1355 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1356     size_t optsize, void *p, int delay)
 1357 {
 1358         int error;
 1359         int creat_lock_on = 0;
 1360         struct sctp_tcb *stcb = NULL;
 1361         struct sockaddr *sa;
 1362         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1363         uint32_t vrf_id;
 1364         sctp_assoc_t *a_id;
 1365 
 1366         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1367 
 1368         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1369             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1370                 /* We are already connected AND the TCP model */
 1371                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1372                 return (EADDRINUSE);
 1373         }
 1374 
 1375         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1376             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1377                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1378                 return (EINVAL);
 1379         }
 1380 
 1381         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1382                 SCTP_INP_RLOCK(inp);
 1383                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1384                 SCTP_INP_RUNLOCK(inp);
 1385         }
 1386         if (stcb) {
 1387                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1388                 return (EALREADY);
 1389         }
 1390         SCTP_INP_INCR_REF(inp);
 1391         SCTP_ASOC_CREATE_LOCK(inp);
 1392         creat_lock_on = 1;
 1393         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1394             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1395                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1396                 error = EFAULT;
 1397                 goto out_now;
 1398         }
 1399         totaddrp = (unsigned int *)optval;
 1400         totaddr = *totaddrp;
 1401         sa = (struct sockaddr *)(totaddrp + 1);
 1402         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
 1403         if (error != 0) {
 1404                 /* Already have or am bring up an association */
 1405                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1406                 creat_lock_on = 0;
 1407                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1408                 goto out_now;
 1409         }
 1410 #ifdef INET6
 1411         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1412             (num_v6 > 0)) {
 1413                 error = EINVAL;
 1414                 goto out_now;
 1415         }
 1416         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1417             (num_v4 > 0)) {
 1418                 struct in6pcb *inp6;
 1419 
 1420                 inp6 = (struct in6pcb *)inp;
 1421                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1422                         /*
 1423                          * if IPV6_V6ONLY flag, ignore connections destined
 1424                          * to a v4 addr or v4-mapped addr
 1425                          */
 1426                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1427                         error = EINVAL;
 1428                         goto out_now;
 1429                 }
 1430         }
 1431 #endif                          /* INET6 */
 1432         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1433             SCTP_PCB_FLAGS_UNBOUND) {
 1434                 /* Bind a ephemeral port */
 1435                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1436                 if (error) {
 1437                         goto out_now;
 1438                 }
 1439         }
 1440 
 1441         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1442         vrf_id = inp->def_vrf_id;
 1443 
 1444 
 1445         /* We are GOOD to go */
 1446         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
 1447             inp->sctp_ep.pre_open_stream_count,
 1448             inp->sctp_ep.port,
 1449             (struct thread *)p,
 1450             SCTP_INITIALIZE_AUTH_PARAMS);
 1451         if (stcb == NULL) {
 1452                 /* Gak! no memory */
 1453                 goto out_now;
 1454         }
 1455         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1456                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1457                 /* Set the connected flag so we can queue data */
 1458                 soisconnecting(so);
 1459         }
 1460         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
 1461         /* move to second address */
 1462         switch (sa->sa_family) {
 1463 #ifdef INET
 1464         case AF_INET:
 1465                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1466                 break;
 1467 #endif
 1468 #ifdef INET6
 1469         case AF_INET6:
 1470                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1471                 break;
 1472 #endif
 1473         default:
 1474                 break;
 1475         }
 1476 
 1477         error = 0;
 1478         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1479         /* Fill in the return id */
 1480         if (error) {
 1481                 goto out_now;
 1482         }
 1483         a_id = (sctp_assoc_t *)optval;
 1484         *a_id = sctp_get_associd(stcb);
 1485 
 1486         if (delay) {
 1487                 /* doing delayed connection */
 1488                 stcb->asoc.delayed_connection = 1;
 1489                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1490         } else {
 1491                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1492                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1493         }
 1494         SCTP_TCB_UNLOCK(stcb);
 1495 out_now:
 1496         if (creat_lock_on) {
 1497                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1498         }
 1499         SCTP_INP_DECR_REF(inp);
 1500         return (error);
 1501 }
 1502 
 1503 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1504         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1505             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1506                 SCTP_INP_RLOCK(inp); \
 1507                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1508                 if (stcb) { \
 1509                         SCTP_TCB_LOCK(stcb); \
 1510                 } \
 1511                 SCTP_INP_RUNLOCK(inp); \
 1512         } else if (assoc_id > SCTP_ALL_ASSOC) { \
 1513                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1514                 if (stcb == NULL) { \
 1515                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1516                         error = ENOENT; \
 1517                         break; \
 1518                 } \
 1519         } else { \
 1520                 stcb = NULL; \
 1521         } \
 1522 }
 1523 
 1524 
 1525 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
 1526         if (size < sizeof(type)) { \
 1527                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1528                 error = EINVAL; \
 1529                 break; \
 1530         } else { \
 1531                 destp = (type *)srcp; \
 1532         } \
 1533 }
 1534 
 1535 static int
 1536 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1537     void *p)
 1538 {
 1539         struct sctp_inpcb *inp = NULL;
 1540         int error, val = 0;
 1541         struct sctp_tcb *stcb = NULL;
 1542 
 1543         if (optval == NULL) {
 1544                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1545                 return (EINVAL);
 1546         }
 1547 
 1548         inp = (struct sctp_inpcb *)so->so_pcb;
 1549         if (inp == NULL) {
 1550                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1551                 return EINVAL;
 1552         }
 1553         error = 0;
 1554 
 1555         switch (optname) {
 1556         case SCTP_NODELAY:
 1557         case SCTP_AUTOCLOSE:
 1558         case SCTP_EXPLICIT_EOR:
 1559         case SCTP_AUTO_ASCONF:
 1560         case SCTP_DISABLE_FRAGMENTS:
 1561         case SCTP_I_WANT_MAPPED_V4_ADDR:
 1562         case SCTP_USE_EXT_RCVINFO:
 1563                 SCTP_INP_RLOCK(inp);
 1564                 switch (optname) {
 1565                 case SCTP_DISABLE_FRAGMENTS:
 1566                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
 1567                         break;
 1568                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 1569                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
 1570                         break;
 1571                 case SCTP_AUTO_ASCONF:
 1572                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1573                                 /* only valid for bound all sockets */
 1574                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
 1575                         } else {
 1576                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1577                                 error = EINVAL;
 1578                                 goto flags_out;
 1579                         }
 1580                         break;
 1581                 case SCTP_EXPLICIT_EOR:
 1582                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
 1583                         break;
 1584                 case SCTP_NODELAY:
 1585                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
 1586                         break;
 1587                 case SCTP_USE_EXT_RCVINFO:
 1588                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
 1589                         break;
 1590                 case SCTP_AUTOCLOSE:
 1591                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
 1592                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
 1593                         else
 1594                                 val = 0;
 1595                         break;
 1596 
 1597                 default:
 1598                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1599                         error = ENOPROTOOPT;
 1600                 }               /* end switch (sopt->sopt_name) */
 1601                 if (*optsize < sizeof(val)) {
 1602                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1603                         error = EINVAL;
 1604                 }
 1605 flags_out:
 1606                 SCTP_INP_RUNLOCK(inp);
 1607                 if (error == 0) {
 1608                         /* return the option value */
 1609                         *(int *)optval = val;
 1610                         *optsize = sizeof(val);
 1611                 }
 1612                 break;
 1613         case SCTP_GET_PACKET_LOG:
 1614                 {
 1615 #ifdef  SCTP_PACKET_LOGGING
 1616                         uint8_t *target;
 1617                         int ret;
 1618 
 1619                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
 1620                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
 1621                         *optsize = ret;
 1622 #else
 1623                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1624                         error = EOPNOTSUPP;
 1625 #endif
 1626                         break;
 1627                 }
 1628         case SCTP_REUSE_PORT:
 1629                 {
 1630                         uint32_t *value;
 1631 
 1632                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 1633                                 /* Can't do this for a 1-m socket */
 1634                                 error = EINVAL;
 1635                                 break;
 1636                         }
 1637                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1638                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 1639                         *optsize = sizeof(uint32_t);
 1640                         break;
 1641                 }
 1642         case SCTP_PARTIAL_DELIVERY_POINT:
 1643                 {
 1644                         uint32_t *value;
 1645 
 1646                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1647                         *value = inp->partial_delivery_point;
 1648                         *optsize = sizeof(uint32_t);
 1649                         break;
 1650                 }
 1651         case SCTP_FRAGMENT_INTERLEAVE:
 1652                 {
 1653                         uint32_t *value;
 1654 
 1655                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1656                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
 1657                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
 1658                                         *value = SCTP_FRAG_LEVEL_2;
 1659                                 } else {
 1660                                         *value = SCTP_FRAG_LEVEL_1;
 1661                                 }
 1662                         } else {
 1663                                 *value = SCTP_FRAG_LEVEL_0;
 1664                         }
 1665                         *optsize = sizeof(uint32_t);
 1666                         break;
 1667                 }
 1668         case SCTP_INTERLEAVING_SUPPORTED:
 1669                 {
 1670                         struct sctp_assoc_value *av;
 1671 
 1672                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1673                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1674 
 1675                         if (stcb) {
 1676                                 av->assoc_value = stcb->asoc.idata_supported;
 1677                                 SCTP_TCB_UNLOCK(stcb);
 1678                         } else {
 1679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1681                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 1682                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 1683                                         SCTP_INP_RLOCK(inp);
 1684                                         if (inp->idata_supported) {
 1685                                                 av->assoc_value = 1;
 1686                                         } else {
 1687                                                 av->assoc_value = 0;
 1688                                         }
 1689                                         SCTP_INP_RUNLOCK(inp);
 1690                                 } else {
 1691                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1692                                         error = EINVAL;
 1693                                 }
 1694                         }
 1695                         if (error == 0) {
 1696                                 *optsize = sizeof(struct sctp_assoc_value);
 1697                         }
 1698                         break;
 1699                 }
 1700         case SCTP_CMT_ON_OFF:
 1701                 {
 1702                         struct sctp_assoc_value *av;
 1703 
 1704                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1705                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1706                         if (stcb) {
 1707                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1708                                 SCTP_TCB_UNLOCK(stcb);
 1709                         } else {
 1710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1712                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 1713                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 1714                                         SCTP_INP_RLOCK(inp);
 1715                                         av->assoc_value = inp->sctp_cmt_on_off;
 1716                                         SCTP_INP_RUNLOCK(inp);
 1717                                 } else {
 1718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1719                                         error = EINVAL;
 1720                                 }
 1721                         }
 1722                         if (error == 0) {
 1723                                 *optsize = sizeof(struct sctp_assoc_value);
 1724                         }
 1725                         break;
 1726                 }
 1727         case SCTP_PLUGGABLE_CC:
 1728                 {
 1729                         struct sctp_assoc_value *av;
 1730 
 1731                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1732                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1733                         if (stcb) {
 1734                                 av->assoc_value = stcb->asoc.congestion_control_module;
 1735                                 SCTP_TCB_UNLOCK(stcb);
 1736                         } else {
 1737                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1738                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1739                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 1740                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 1741                                         SCTP_INP_RLOCK(inp);
 1742                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
 1743                                         SCTP_INP_RUNLOCK(inp);
 1744                                 } else {
 1745                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1746                                         error = EINVAL;
 1747                                 }
 1748                         }
 1749                         if (error == 0) {
 1750                                 *optsize = sizeof(struct sctp_assoc_value);
 1751                         }
 1752                         break;
 1753                 }
 1754         case SCTP_CC_OPTION:
 1755                 {
 1756                         struct sctp_cc_option *cc_opt;
 1757 
 1758                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
 1759                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 1760                         if (stcb == NULL) {
 1761                                 error = EINVAL;
 1762                         } else {
 1763                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 1764                                         error = ENOTSUP;
 1765                                 } else {
 1766                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
 1767                                         *optsize = sizeof(struct sctp_cc_option);
 1768                                 }
 1769                                 SCTP_TCB_UNLOCK(stcb);
 1770                         }
 1771                         break;
 1772                 }
 1773         case SCTP_PLUGGABLE_SS:
 1774                 {
 1775                         struct sctp_assoc_value *av;
 1776 
 1777                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1778                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1779                         if (stcb) {
 1780                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
 1781                                 SCTP_TCB_UNLOCK(stcb);
 1782                         } else {
 1783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1785                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 1786                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 1787                                         SCTP_INP_RLOCK(inp);
 1788                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
 1789                                         SCTP_INP_RUNLOCK(inp);
 1790                                 } else {
 1791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1792                                         error = EINVAL;
 1793                                 }
 1794                         }
 1795                         if (error == 0) {
 1796                                 *optsize = sizeof(struct sctp_assoc_value);
 1797                         }
 1798                         break;
 1799                 }
 1800         case SCTP_SS_VALUE:
 1801                 {
 1802                         struct sctp_stream_value *av;
 1803 
 1804                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
 1805                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1806                         if (stcb) {
 1807                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 1808                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 1809                                     &av->stream_value) < 0)) {
 1810                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1811                                         error = EINVAL;
 1812                                 } else {
 1813                                         *optsize = sizeof(struct sctp_stream_value);
 1814                                 }
 1815                                 SCTP_TCB_UNLOCK(stcb);
 1816                         } else {
 1817                                 /*
 1818                                  * Can't get stream value without
 1819                                  * association
 1820                                  */
 1821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1822                                 error = EINVAL;
 1823                         }
 1824                         break;
 1825                 }
 1826         case SCTP_GET_ADDR_LEN:
 1827                 {
 1828                         struct sctp_assoc_value *av;
 1829 
 1830                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1831                         error = EINVAL;
 1832 #ifdef INET
 1833                         if (av->assoc_value == AF_INET) {
 1834                                 av->assoc_value = sizeof(struct sockaddr_in);
 1835                                 error = 0;
 1836                         }
 1837 #endif
 1838 #ifdef INET6
 1839                         if (av->assoc_value == AF_INET6) {
 1840                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1841                                 error = 0;
 1842                         }
 1843 #endif
 1844                         if (error) {
 1845                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1846                         } else {
 1847                                 *optsize = sizeof(struct sctp_assoc_value);
 1848                         }
 1849                         break;
 1850                 }
 1851         case SCTP_GET_ASSOC_NUMBER:
 1852                 {
 1853                         uint32_t *value, cnt;
 1854 
 1855                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1856                         SCTP_INP_RLOCK(inp);
 1857                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1858                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1859                                 /* Can't do this for a 1-1 socket */
 1860                                 error = EINVAL;
 1861                                 SCTP_INP_RUNLOCK(inp);
 1862                                 break;
 1863                         }
 1864                         cnt = 0;
 1865                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1866                                 cnt++;
 1867                         }
 1868                         SCTP_INP_RUNLOCK(inp);
 1869                         *value = cnt;
 1870                         *optsize = sizeof(uint32_t);
 1871                         break;
 1872                 }
 1873         case SCTP_GET_ASSOC_ID_LIST:
 1874                 {
 1875                         struct sctp_assoc_ids *ids;
 1876                         uint32_t at;
 1877                         size_t limit;
 1878 
 1879                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1880                         SCTP_INP_RLOCK(inp);
 1881                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1882                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1883                                 /* Can't do this for a 1-1 socket */
 1884                                 error = EINVAL;
 1885                                 SCTP_INP_RUNLOCK(inp);
 1886                                 break;
 1887                         }
 1888                         at = 0;
 1889                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1890                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1891                                 if (at < limit) {
 1892                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1893                                         if (at == 0) {
 1894                                                 error = EINVAL;
 1895                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1896                                                 break;
 1897                                         }
 1898                                 } else {
 1899                                         error = EINVAL;
 1900                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1901                                         break;
 1902                                 }
 1903                         }
 1904                         SCTP_INP_RUNLOCK(inp);
 1905                         if (error == 0) {
 1906                                 ids->gaids_number_of_ids = at;
 1907                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1908                         }
 1909                         break;
 1910                 }
 1911         case SCTP_CONTEXT:
 1912                 {
 1913                         struct sctp_assoc_value *av;
 1914 
 1915                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1916                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1917 
 1918                         if (stcb) {
 1919                                 av->assoc_value = stcb->asoc.context;
 1920                                 SCTP_TCB_UNLOCK(stcb);
 1921                         } else {
 1922                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1923                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1924                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 1925                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 1926                                         SCTP_INP_RLOCK(inp);
 1927                                         av->assoc_value = inp->sctp_context;
 1928                                         SCTP_INP_RUNLOCK(inp);
 1929                                 } else {
 1930                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1931                                         error = EINVAL;
 1932                                 }
 1933                         }
 1934                         if (error == 0) {
 1935                                 *optsize = sizeof(struct sctp_assoc_value);
 1936                         }
 1937                         break;
 1938                 }
 1939         case SCTP_VRF_ID:
 1940                 {
 1941                         uint32_t *default_vrfid;
 1942 
 1943                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1944                         *default_vrfid = inp->def_vrf_id;
 1945                         *optsize = sizeof(uint32_t);
 1946                         break;
 1947                 }
 1948         case SCTP_GET_ASOC_VRF:
 1949                 {
 1950                         struct sctp_assoc_value *id;
 1951 
 1952                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1953                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1954                         if (stcb == NULL) {
 1955                                 error = EINVAL;
 1956                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1957                         } else {
 1958                                 id->assoc_value = stcb->asoc.vrf_id;
 1959                                 SCTP_TCB_UNLOCK(stcb);
 1960                                 *optsize = sizeof(struct sctp_assoc_value);
 1961                         }
 1962                         break;
 1963                 }
 1964         case SCTP_GET_VRF_IDS:
 1965                 {
 1966                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1967                         error = EOPNOTSUPP;
 1968                         break;
 1969                 }
 1970         case SCTP_GET_NONCE_VALUES:
 1971                 {
 1972                         struct sctp_get_nonce_values *gnv;
 1973 
 1974                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 1975                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 1976 
 1977                         if (stcb) {
 1978                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 1979                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 1980                                 SCTP_TCB_UNLOCK(stcb);
 1981                                 *optsize = sizeof(struct sctp_get_nonce_values);
 1982                         } else {
 1983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1984                                 error = ENOTCONN;
 1985                         }
 1986                         break;
 1987                 }
 1988         case SCTP_DELAYED_SACK:
 1989                 {
 1990                         struct sctp_sack_info *sack;
 1991 
 1992                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 1993                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 1994                         if (stcb) {
 1995                                 sack->sack_delay = stcb->asoc.delayed_ack;
 1996                                 sack->sack_freq = stcb->asoc.sack_freq;
 1997                                 SCTP_TCB_UNLOCK(stcb);
 1998                         } else {
 1999                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2000                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2001                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2002                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
 2003                                         SCTP_INP_RLOCK(inp);
 2004                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 2005                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 2006                                         SCTP_INP_RUNLOCK(inp);
 2007                                 } else {
 2008                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2009                                         error = EINVAL;
 2010                                 }
 2011                         }
 2012                         if (error == 0) {
 2013                                 *optsize = sizeof(struct sctp_sack_info);
 2014                         }
 2015                         break;
 2016                 }
 2017         case SCTP_GET_SNDBUF_USE:
 2018                 {
 2019                         struct sctp_sockstat *ss;
 2020 
 2021                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 2022                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 2023 
 2024                         if (stcb) {
 2025                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 2026                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 2027                                     stcb->asoc.size_on_all_streams);
 2028                                 SCTP_TCB_UNLOCK(stcb);
 2029                                 *optsize = sizeof(struct sctp_sockstat);
 2030                         } else {
 2031                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2032                                 error = ENOTCONN;
 2033                         }
 2034                         break;
 2035                 }
 2036         case SCTP_MAX_BURST:
 2037                 {
 2038                         struct sctp_assoc_value *av;
 2039 
 2040                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2041                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2042 
 2043                         if (stcb) {
 2044                                 av->assoc_value = stcb->asoc.max_burst;
 2045                                 SCTP_TCB_UNLOCK(stcb);
 2046                         } else {
 2047                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2048                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2049                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2050                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 2051                                         SCTP_INP_RLOCK(inp);
 2052                                         av->assoc_value = inp->sctp_ep.max_burst;
 2053                                         SCTP_INP_RUNLOCK(inp);
 2054                                 } else {
 2055                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2056                                         error = EINVAL;
 2057                                 }
 2058                         }
 2059                         if (error == 0) {
 2060                                 *optsize = sizeof(struct sctp_assoc_value);
 2061                         }
 2062                         break;
 2063                 }
 2064         case SCTP_MAXSEG:
 2065                 {
 2066                         struct sctp_assoc_value *av;
 2067                         int ovh;
 2068 
 2069                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2071 
 2072                         if (stcb) {
 2073                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 2074                                 SCTP_TCB_UNLOCK(stcb);
 2075                         } else {
 2076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2078                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2079                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 2080                                         SCTP_INP_RLOCK(inp);
 2081                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2082                                                 ovh = SCTP_MED_OVERHEAD;
 2083                                         } else {
 2084                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2085                                         }
 2086                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 2087                                                 av->assoc_value = 0;
 2088                                         else
 2089                                                 av->assoc_value = inp->sctp_frag_point - ovh;
 2090                                         SCTP_INP_RUNLOCK(inp);
 2091                                 } else {
 2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2093                                         error = EINVAL;
 2094                                 }
 2095                         }
 2096                         if (error == 0) {
 2097                                 *optsize = sizeof(struct sctp_assoc_value);
 2098                         }
 2099                         break;
 2100                 }
 2101         case SCTP_GET_STAT_LOG:
 2102                 error = sctp_fill_stat_log(optval, optsize);
 2103                 break;
 2104         case SCTP_EVENTS:
 2105                 {
 2106                         struct sctp_event_subscribe *events;
 2107 
 2108                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 2109                         memset(events, 0, sizeof(struct sctp_event_subscribe));
 2110                         SCTP_INP_RLOCK(inp);
 2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 2112                                 events->sctp_data_io_event = 1;
 2113 
 2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 2115                                 events->sctp_association_event = 1;
 2116 
 2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 2118                                 events->sctp_address_event = 1;
 2119 
 2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 2121                                 events->sctp_send_failure_event = 1;
 2122 
 2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 2124                                 events->sctp_peer_error_event = 1;
 2125 
 2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 2127                                 events->sctp_shutdown_event = 1;
 2128 
 2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 2130                                 events->sctp_partial_delivery_event = 1;
 2131 
 2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2133                                 events->sctp_adaptation_layer_event = 1;
 2134 
 2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2136                                 events->sctp_authentication_event = 1;
 2137 
 2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2139                                 events->sctp_sender_dry_event = 1;
 2140 
 2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2142                                 events->sctp_stream_reset_event = 1;
 2143                         SCTP_INP_RUNLOCK(inp);
 2144                         *optsize = sizeof(struct sctp_event_subscribe);
 2145                         break;
 2146                 }
 2147         case SCTP_ADAPTATION_LAYER:
 2148                 {
 2149                         uint32_t *value;
 2150 
 2151                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2152 
 2153                         SCTP_INP_RLOCK(inp);
 2154                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2155                         SCTP_INP_RUNLOCK(inp);
 2156                         *optsize = sizeof(uint32_t);
 2157                         break;
 2158                 }
 2159         case SCTP_SET_INITIAL_DBG_SEQ:
 2160                 {
 2161                         uint32_t *value;
 2162 
 2163                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2164                         SCTP_INP_RLOCK(inp);
 2165                         *value = inp->sctp_ep.initial_sequence_debug;
 2166                         SCTP_INP_RUNLOCK(inp);
 2167                         *optsize = sizeof(uint32_t);
 2168                         break;
 2169                 }
 2170         case SCTP_GET_LOCAL_ADDR_SIZE:
 2171                 {
 2172                         uint32_t *value;
 2173 
 2174                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2175                         SCTP_INP_RLOCK(inp);
 2176                         *value = sctp_count_max_addresses(inp);
 2177                         SCTP_INP_RUNLOCK(inp);
 2178                         *optsize = sizeof(uint32_t);
 2179                         break;
 2180                 }
 2181         case SCTP_GET_REMOTE_ADDR_SIZE:
 2182                 {
 2183                         uint32_t *value;
 2184                         size_t size;
 2185                         struct sctp_nets *net;
 2186 
 2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2188                         /* FIXME MT: change to sctp_assoc_value? */
 2189                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
 2190 
 2191                         if (stcb) {
 2192                                 size = 0;
 2193                                 /* Count the sizes */
 2194                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2195                                         switch (net->ro._l_addr.sa.sa_family) {
 2196 #ifdef INET
 2197                                         case AF_INET:
 2198 #ifdef INET6
 2199                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2200                                                         size += sizeof(struct sockaddr_in6);
 2201                                                 } else {
 2202                                                         size += sizeof(struct sockaddr_in);
 2203                                                 }
 2204 #else
 2205                                                 size += sizeof(struct sockaddr_in);
 2206 #endif
 2207                                                 break;
 2208 #endif
 2209 #ifdef INET6
 2210                                         case AF_INET6:
 2211                                                 size += sizeof(struct sockaddr_in6);
 2212                                                 break;
 2213 #endif
 2214                                         default:
 2215                                                 break;
 2216                                         }
 2217                                 }
 2218                                 SCTP_TCB_UNLOCK(stcb);
 2219                                 *value = (uint32_t)size;
 2220                                 *optsize = sizeof(uint32_t);
 2221                         } else {
 2222                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2223                                 error = ENOTCONN;
 2224                         }
 2225                         break;
 2226                 }
 2227         case SCTP_GET_PEER_ADDRESSES:
 2228                 /*
 2229                  * Get the address information, an array is passed in to
 2230                  * fill up we pack it.
 2231                  */
 2232                 {
 2233                         size_t cpsz, left;
 2234                         struct sockaddr_storage *sas;
 2235                         struct sctp_nets *net;
 2236                         struct sctp_getaddresses *saddr;
 2237 
 2238                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2239                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2240 
 2241                         if (stcb) {
 2242                                 left = (*optsize) - sizeof(sctp_assoc_t);
 2243                                 *optsize = sizeof(sctp_assoc_t);
 2244                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2245 
 2246                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2247                                         switch (net->ro._l_addr.sa.sa_family) {
 2248 #ifdef INET
 2249                                         case AF_INET:
 2250 #ifdef INET6
 2251                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2252                                                         cpsz = sizeof(struct sockaddr_in6);
 2253                                                 } else {
 2254                                                         cpsz = sizeof(struct sockaddr_in);
 2255                                                 }
 2256 #else
 2257                                                 cpsz = sizeof(struct sockaddr_in);
 2258 #endif
 2259                                                 break;
 2260 #endif
 2261 #ifdef INET6
 2262                                         case AF_INET6:
 2263                                                 cpsz = sizeof(struct sockaddr_in6);
 2264                                                 break;
 2265 #endif
 2266                                         default:
 2267                                                 cpsz = 0;
 2268                                                 break;
 2269                                         }
 2270                                         if (cpsz == 0) {
 2271                                                 break;
 2272                                         }
 2273                                         if (left < cpsz) {
 2274                                                 /* not enough room. */
 2275                                                 break;
 2276                                         }
 2277 #if defined(INET) && defined(INET6)
 2278                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2279                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
 2280                                                 /* Must map the address */
 2281                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
 2282                                                     (struct sockaddr_in6 *)sas);
 2283                                         } else {
 2284                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2285                                         }
 2286 #else
 2287                                         memcpy(sas, &net->ro._l_addr, cpsz);
 2288 #endif
 2289                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2290 
 2291                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2292                                         left -= cpsz;
 2293                                         *optsize += cpsz;
 2294                                 }
 2295                                 SCTP_TCB_UNLOCK(stcb);
 2296                         } else {
 2297                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2298                                 error = ENOENT;
 2299                         }
 2300                         break;
 2301                 }
 2302         case SCTP_GET_LOCAL_ADDRESSES:
 2303                 {
 2304                         size_t limit, actual;
 2305                         struct sockaddr_storage *sas;
 2306                         struct sctp_getaddresses *saddr;
 2307 
 2308                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2309                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2310 
 2311                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2312                         limit = *optsize - sizeof(sctp_assoc_t);
 2313                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2314                         if (stcb) {
 2315                                 SCTP_TCB_UNLOCK(stcb);
 2316                         }
 2317                         *optsize = sizeof(sctp_assoc_t) + actual;
 2318                         break;
 2319                 }
 2320         case SCTP_PEER_ADDR_PARAMS:
 2321                 {
 2322                         struct sctp_paddrparams *paddrp;
 2323                         struct sctp_nets *net;
 2324                         struct sockaddr *addr;
 2325 #if defined(INET) && defined(INET6)
 2326                         struct sockaddr_in sin_store;
 2327 #endif
 2328 
 2329                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2330                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2331 
 2332 #if defined(INET) && defined(INET6)
 2333                         if (paddrp->spp_address.ss_family == AF_INET6) {
 2334                                 struct sockaddr_in6 *sin6;
 2335 
 2336                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 2337                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2338                                         in6_sin6_2_sin(&sin_store, sin6);
 2339                                         addr = (struct sockaddr *)&sin_store;
 2340                                 } else {
 2341                                         addr = (struct sockaddr *)&paddrp->spp_address;
 2342                                 }
 2343                         } else {
 2344                                 addr = (struct sockaddr *)&paddrp->spp_address;
 2345                         }
 2346 #else
 2347                         addr = (struct sockaddr *)&paddrp->spp_address;
 2348 #endif
 2349                         if (stcb != NULL) {
 2350                                 net = sctp_findnet(stcb, addr);
 2351                         } else {
 2352                                 /*
 2353                                  * We increment here since
 2354                                  * sctp_findassociation_ep_addr() wil do a
 2355                                  * decrement if it finds the stcb as long as
 2356                                  * the locked tcb (last argument) is NOT a
 2357                                  * TCB.. aka NULL.
 2358                                  */
 2359                                 net = NULL;
 2360                                 SCTP_INP_INCR_REF(inp);
 2361                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2362                                 if (stcb == NULL) {
 2363                                         SCTP_INP_DECR_REF(inp);
 2364                                 }
 2365                         }
 2366                         if ((stcb != NULL) && (net == NULL)) {
 2367 #ifdef INET
 2368                                 if (addr->sa_family == AF_INET) {
 2369                                         struct sockaddr_in *sin;
 2370 
 2371                                         sin = (struct sockaddr_in *)addr;
 2372                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 2373                                                 error = EINVAL;
 2374                                                 SCTP_TCB_UNLOCK(stcb);
 2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2376                                                 break;
 2377                                         }
 2378                                 } else
 2379 #endif
 2380 #ifdef INET6
 2381                                 if (addr->sa_family == AF_INET6) {
 2382                                         struct sockaddr_in6 *sin6;
 2383 
 2384                                         sin6 = (struct sockaddr_in6 *)addr;
 2385                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2386                                                 error = EINVAL;
 2387                                                 SCTP_TCB_UNLOCK(stcb);
 2388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2389                                                 break;
 2390                                         }
 2391                                 } else
 2392 #endif
 2393                                 {
 2394                                         error = EAFNOSUPPORT;
 2395                                         SCTP_TCB_UNLOCK(stcb);
 2396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2397                                         break;
 2398                                 }
 2399                         }
 2400 
 2401                         if (stcb != NULL) {
 2402                                 /* Applies to the specific association */
 2403                                 paddrp->spp_flags = 0;
 2404                                 if (net != NULL) {
 2405                                         paddrp->spp_hbinterval = net->heart_beat_delay;
 2406                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2407                                         paddrp->spp_pathmtu = net->mtu;
 2408                                         switch (net->ro._l_addr.sa.sa_family) {
 2409 #ifdef INET
 2410                                         case AF_INET:
 2411                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
 2412                                                 break;
 2413 #endif
 2414 #ifdef INET6
 2415                                         case AF_INET6:
 2416                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
 2417                                                 break;
 2418 #endif
 2419                                         default:
 2420                                                 break;
 2421                                         }
 2422                                         /* get flags for HB */
 2423                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 2424                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2425                                         } else {
 2426                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2427                                         }
 2428                                         /* get flags for PMTU */
 2429                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 2430                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2431                                         } else {
 2432                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2433                                         }
 2434                                         if (net->dscp & 0x01) {
 2435                                                 paddrp->spp_dscp = net->dscp & 0xfc;
 2436                                                 paddrp->spp_flags |= SPP_DSCP;
 2437                                         }
 2438 #ifdef INET6
 2439                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
 2440                                             (net->flowlabel & 0x80000000)) {
 2441                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
 2442                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2443                                         }
 2444 #endif
 2445                                 } else {
 2446                                         /*
 2447                                          * No destination so return default
 2448                                          * value
 2449                                          */
 2450                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2451                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
 2452                                         if (stcb->asoc.default_dscp & 0x01) {
 2453                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
 2454                                                 paddrp->spp_flags |= SPP_DSCP;
 2455                                         }
 2456 #ifdef INET6
 2457                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
 2458                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
 2459                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2460                                         }
 2461 #endif
 2462                                         /* default settings should be these */
 2463                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2464                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2465                                         } else {
 2466                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2467                                         }
 2468                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2469                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2470                                         } else {
 2471                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2472                                         }
 2473                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2474                                 }
 2475                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2476                                 SCTP_TCB_UNLOCK(stcb);
 2477                         } else {
 2478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2480                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2481                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
 2482                                         /* Use endpoint defaults */
 2483                                         SCTP_INP_RLOCK(inp);
 2484                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2485                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2486                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
 2487                                         /* get inp's default */
 2488                                         if (inp->sctp_ep.default_dscp & 0x01) {
 2489                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
 2490                                                 paddrp->spp_flags |= SPP_DSCP;
 2491                                         }
 2492 #ifdef INET6
 2493                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 2494                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
 2495                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
 2496                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2497                                         }
 2498 #endif
 2499                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
 2500 
 2501                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2502                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2503                                         } else {
 2504                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2505                                         }
 2506                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2507                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2508                                         } else {
 2509                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2510                                         }
 2511                                         SCTP_INP_RUNLOCK(inp);
 2512                                 } else {
 2513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2514                                         error = EINVAL;
 2515                                 }
 2516                         }
 2517                         if (error == 0) {
 2518                                 *optsize = sizeof(struct sctp_paddrparams);
 2519                         }
 2520                         break;
 2521                 }
 2522         case SCTP_GET_PEER_ADDR_INFO:
 2523                 {
 2524                         struct sctp_paddrinfo *paddri;
 2525                         struct sctp_nets *net;
 2526                         struct sockaddr *addr;
 2527 #if defined(INET) && defined(INET6)
 2528                         struct sockaddr_in sin_store;
 2529 #endif
 2530 
 2531                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2532                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2533 
 2534 #if defined(INET) && defined(INET6)
 2535                         if (paddri->spinfo_address.ss_family == AF_INET6) {
 2536                                 struct sockaddr_in6 *sin6;
 2537 
 2538                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
 2539                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2540                                         in6_sin6_2_sin(&sin_store, sin6);
 2541                                         addr = (struct sockaddr *)&sin_store;
 2542                                 } else {
 2543                                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2544                                 }
 2545                         } else {
 2546                                 addr = (struct sockaddr *)&paddri->spinfo_address;
 2547                         }
 2548 #else
 2549                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2550 #endif
 2551                         if (stcb != NULL) {
 2552                                 net = sctp_findnet(stcb, addr);
 2553                         } else {
 2554                                 /*
 2555                                  * We increment here since
 2556                                  * sctp_findassociation_ep_addr() wil do a
 2557                                  * decrement if it finds the stcb as long as
 2558                                  * the locked tcb (last argument) is NOT a
 2559                                  * TCB.. aka NULL.
 2560                                  */
 2561                                 net = NULL;
 2562                                 SCTP_INP_INCR_REF(inp);
 2563                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2564                                 if (stcb == NULL) {
 2565                                         SCTP_INP_DECR_REF(inp);
 2566                                 }
 2567                         }
 2568 
 2569                         if ((stcb != NULL) && (net != NULL)) {
 2570                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2571                                         /* It's unconfirmed */
 2572                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
 2573                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2574                                         /* It's active */
 2575                                         paddri->spinfo_state = SCTP_ACTIVE;
 2576                                 } else {
 2577                                         /* It's inactive */
 2578                                         paddri->spinfo_state = SCTP_INACTIVE;
 2579                                 }
 2580                                 paddri->spinfo_cwnd = net->cwnd;
 2581                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2582                                 paddri->spinfo_rto = net->RTO;
 2583                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2584                                 paddri->spinfo_mtu = net->mtu;
 2585                                 switch (addr->sa_family) {
 2586 #if defined(INET)
 2587                                 case AF_INET:
 2588                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2589                                         break;
 2590 #endif
 2591 #if defined(INET6)
 2592                                 case AF_INET6:
 2593                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2594                                         break;
 2595 #endif
 2596                                 default:
 2597                                         break;
 2598                                 }
 2599                                 SCTP_TCB_UNLOCK(stcb);
 2600                                 *optsize = sizeof(struct sctp_paddrinfo);
 2601                         } else {
 2602                                 if (stcb != NULL) {
 2603                                         SCTP_TCB_UNLOCK(stcb);
 2604                                 }
 2605                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2606                                 error = ENOENT;
 2607                         }
 2608                         break;
 2609                 }
 2610         case SCTP_PCB_STATUS:
 2611                 {
 2612                         struct sctp_pcbinfo *spcb;
 2613 
 2614                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2615                         sctp_fill_pcbinfo(spcb);
 2616                         *optsize = sizeof(struct sctp_pcbinfo);
 2617                         break;
 2618                 }
 2619         case SCTP_STATUS:
 2620                 {
 2621                         struct sctp_nets *net;
 2622                         struct sctp_status *sstat;
 2623 
 2624                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2625                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2626 
 2627                         if (stcb == NULL) {
 2628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2629                                 error = EINVAL;
 2630                                 break;
 2631                         }
 2632                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
 2633                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2634                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2635                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2636                         /*
 2637                          * We can't include chunks that have been passed to
 2638                          * the socket layer. Only things in queue.
 2639                          */
 2640                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2641                             stcb->asoc.cnt_on_all_streams);
 2642 
 2643 
 2644                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2645                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2646                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2647                         net = stcb->asoc.primary_destination;
 2648                         if (net != NULL) {
 2649                                 memcpy(&sstat->sstat_primary.spinfo_address,
 2650                                     &stcb->asoc.primary_destination->ro._l_addr,
 2651                                     ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2652                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2653                                 /*
 2654                                  * Again the user can get info from
 2655                                  * sctp_constants.h for what the state of
 2656                                  * the network is.
 2657                                  */
 2658                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2659                                         /* It's unconfirmed */
 2660                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
 2661                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2662                                         /* It's active */
 2663                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
 2664                                 } else {
 2665                                         /* It's inactive */
 2666                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
 2667                                 }
 2668                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2669                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2670                                 sstat->sstat_primary.spinfo_rto = net->RTO;
 2671                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
 2672                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
 2673 #if defined(INET)
 2674                                 case AF_INET:
 2675                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2676                                         break;
 2677 #endif
 2678 #if defined(INET6)
 2679                                 case AF_INET6:
 2680                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2681                                         break;
 2682 #endif
 2683                                 default:
 2684                                         break;
 2685                                 }
 2686                         } else {
 2687                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
 2688                         }
 2689                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2690                         SCTP_TCB_UNLOCK(stcb);
 2691                         *optsize = sizeof(struct sctp_status);
 2692                         break;
 2693                 }
 2694         case SCTP_RTOINFO:
 2695                 {
 2696                         struct sctp_rtoinfo *srto;
 2697 
 2698                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2699                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2700 
 2701                         if (stcb) {
 2702                                 srto->srto_initial = stcb->asoc.initial_rto;
 2703                                 srto->srto_max = stcb->asoc.maxrto;
 2704                                 srto->srto_min = stcb->asoc.minrto;
 2705                                 SCTP_TCB_UNLOCK(stcb);
 2706                         } else {
 2707                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2708                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2709                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2710                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
 2711                                         SCTP_INP_RLOCK(inp);
 2712                                         srto->srto_initial = inp->sctp_ep.initial_rto;
 2713                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2714                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
 2715                                         SCTP_INP_RUNLOCK(inp);
 2716                                 } else {
 2717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2718                                         error = EINVAL;
 2719                                 }
 2720                         }
 2721                         if (error == 0) {
 2722                                 *optsize = sizeof(struct sctp_rtoinfo);
 2723                         }
 2724                         break;
 2725                 }
 2726         case SCTP_TIMEOUTS:
 2727                 {
 2728                         struct sctp_timeouts *stimo;
 2729 
 2730                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
 2731                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
 2732 
 2733                         if (stcb) {
 2734                                 stimo->stimo_init = stcb->asoc.timoinit;
 2735                                 stimo->stimo_data = stcb->asoc.timodata;
 2736                                 stimo->stimo_sack = stcb->asoc.timosack;
 2737                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
 2738                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
 2739                                 stimo->stimo_cookie = stcb->asoc.timocookie;
 2740                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
 2741                                 SCTP_TCB_UNLOCK(stcb);
 2742                                 *optsize = sizeof(struct sctp_timeouts);
 2743                         } else {
 2744                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2745                                 error = EINVAL;
 2746                         }
 2747                         break;
 2748                 }
 2749         case SCTP_ASSOCINFO:
 2750                 {
 2751                         struct sctp_assocparams *sasoc;
 2752 
 2753                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2754                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2755 
 2756                         if (stcb) {
 2757                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2758                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2759                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2760                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2761                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2762                                 SCTP_TCB_UNLOCK(stcb);
 2763                         } else {
 2764                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2765                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2766                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2767                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
 2768                                         SCTP_INP_RLOCK(inp);
 2769                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2770                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2771                                         sasoc->sasoc_number_peer_destinations = 0;
 2772                                         sasoc->sasoc_peer_rwnd = 0;
 2773                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2774                                         SCTP_INP_RUNLOCK(inp);
 2775                                 } else {
 2776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2777                                         error = EINVAL;
 2778                                 }
 2779                         }
 2780                         if (error == 0) {
 2781                                 *optsize = sizeof(struct sctp_assocparams);
 2782                         }
 2783                         break;
 2784                 }
 2785         case SCTP_DEFAULT_SEND_PARAM:
 2786                 {
 2787                         struct sctp_sndrcvinfo *s_info;
 2788 
 2789                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2790                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2791 
 2792                         if (stcb) {
 2793                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2794                                 SCTP_TCB_UNLOCK(stcb);
 2795                         } else {
 2796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2798                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2799                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
 2800                                         SCTP_INP_RLOCK(inp);
 2801                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2802                                         SCTP_INP_RUNLOCK(inp);
 2803                                 } else {
 2804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2805                                         error = EINVAL;
 2806                                 }
 2807                         }
 2808                         if (error == 0) {
 2809                                 *optsize = sizeof(struct sctp_sndrcvinfo);
 2810                         }
 2811                         break;
 2812                 }
 2813         case SCTP_INITMSG:
 2814                 {
 2815                         struct sctp_initmsg *sinit;
 2816 
 2817                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2818                         SCTP_INP_RLOCK(inp);
 2819                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2820                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2821                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2822                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2823                         SCTP_INP_RUNLOCK(inp);
 2824                         *optsize = sizeof(struct sctp_initmsg);
 2825                         break;
 2826                 }
 2827         case SCTP_PRIMARY_ADDR:
 2828                 /* we allow a "get" operation on this */
 2829                 {
 2830                         struct sctp_setprim *ssp;
 2831 
 2832                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2833                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2834 
 2835                         if (stcb) {
 2836                                 union sctp_sockstore *addr;
 2837 
 2838                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
 2839                                 switch (addr->sa.sa_family) {
 2840 #ifdef INET
 2841                                 case AF_INET:
 2842 #ifdef INET6
 2843                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2844                                                 in6_sin_2_v4mapsin6(&addr->sin,
 2845                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
 2846                                         } else {
 2847                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2848                                         }
 2849 #else
 2850                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2851 #endif
 2852                                         break;
 2853 #endif
 2854 #ifdef INET6
 2855                                 case AF_INET6:
 2856                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
 2857                                         break;
 2858 #endif
 2859                                 default:
 2860                                         break;
 2861                                 }
 2862                                 SCTP_TCB_UNLOCK(stcb);
 2863                                 *optsize = sizeof(struct sctp_setprim);
 2864                         } else {
 2865                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2866                                 error = EINVAL;
 2867                         }
 2868                         break;
 2869                 }
 2870         case SCTP_HMAC_IDENT:
 2871                 {
 2872                         struct sctp_hmacalgo *shmac;
 2873                         sctp_hmaclist_t *hmaclist;
 2874                         uint32_t size;
 2875                         int i;
 2876 
 2877                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2878 
 2879                         SCTP_INP_RLOCK(inp);
 2880                         hmaclist = inp->sctp_ep.local_hmacs;
 2881                         if (hmaclist == NULL) {
 2882                                 /* no HMACs to return */
 2883                                 *optsize = sizeof(*shmac);
 2884                                 SCTP_INP_RUNLOCK(inp);
 2885                                 break;
 2886                         }
 2887                         /* is there room for all of the hmac ids? */
 2888                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2889                             sizeof(shmac->shmac_idents[0]));
 2890                         if ((size_t)(*optsize) < size) {
 2891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2892                                 error = EINVAL;
 2893                                 SCTP_INP_RUNLOCK(inp);
 2894                                 break;
 2895                         }
 2896                         /* copy in the list */
 2897                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2898                         for (i = 0; i < hmaclist->num_algo; i++) {
 2899                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2900                         }
 2901                         SCTP_INP_RUNLOCK(inp);
 2902                         *optsize = size;
 2903                         break;
 2904                 }
 2905         case SCTP_AUTH_ACTIVE_KEY:
 2906                 {
 2907                         struct sctp_authkeyid *scact;
 2908 
 2909                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2910                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2911 
 2912                         if (stcb) {
 2913                                 /* get the active key on the assoc */
 2914                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2915                                 SCTP_TCB_UNLOCK(stcb);
 2916                         } else {
 2917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2919                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2920                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
 2921                                         /* get the endpoint active key */
 2922                                         SCTP_INP_RLOCK(inp);
 2923                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2924                                         SCTP_INP_RUNLOCK(inp);
 2925                                 } else {
 2926                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2927                                         error = EINVAL;
 2928                                 }
 2929                         }
 2930                         if (error == 0) {
 2931                                 *optsize = sizeof(struct sctp_authkeyid);
 2932                         }
 2933                         break;
 2934                 }
 2935         case SCTP_LOCAL_AUTH_CHUNKS:
 2936                 {
 2937                         struct sctp_authchunks *sac;
 2938                         sctp_auth_chklist_t *chklist = NULL;
 2939                         size_t size = 0;
 2940 
 2941                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2942                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2943 
 2944                         if (stcb) {
 2945                                 /* get off the assoc */
 2946                                 chklist = stcb->asoc.local_auth_chunks;
 2947                                 /* is there enough space? */
 2948                                 size = sctp_auth_get_chklist_size(chklist);
 2949                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2950                                         error = EINVAL;
 2951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2952                                 } else {
 2953                                         /* copy in the chunks */
 2954                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2955                                         sac->gauth_number_of_chunks = (uint32_t)size;
 2956                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2957                                 }
 2958                                 SCTP_TCB_UNLOCK(stcb);
 2959                         } else {
 2960                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2961                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2962                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 2963                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
 2964                                         /* get off the endpoint */
 2965                                         SCTP_INP_RLOCK(inp);
 2966                                         chklist = inp->sctp_ep.local_auth_chunks;
 2967                                         /* is there enough space? */
 2968                                         size = sctp_auth_get_chklist_size(chklist);
 2969                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2970                                                 error = EINVAL;
 2971                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2972                                         } else {
 2973                                                 /* copy in the chunks */
 2974                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2975                                                 sac->gauth_number_of_chunks = (uint32_t)size;
 2976                                                 *optsize = sizeof(struct sctp_authchunks) + size;
 2977                                         }
 2978                                         SCTP_INP_RUNLOCK(inp);
 2979                                 } else {
 2980                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2981                                         error = EINVAL;
 2982                                 }
 2983                         }
 2984                         break;
 2985                 }
 2986         case SCTP_PEER_AUTH_CHUNKS:
 2987                 {
 2988                         struct sctp_authchunks *sac;
 2989                         sctp_auth_chklist_t *chklist = NULL;
 2990                         size_t size = 0;
 2991 
 2992                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2993                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2994 
 2995                         if (stcb) {
 2996                                 /* get off the assoc */
 2997                                 chklist = stcb->asoc.peer_auth_chunks;
 2998                                 /* is there enough space? */
 2999                                 size = sctp_auth_get_chklist_size(chklist);
 3000                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 3001                                         error = EINVAL;
 3002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3003                                 } else {
 3004                                         /* copy in the chunks */
 3005                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 3006                                         sac->gauth_number_of_chunks = (uint32_t)size;
 3007                                         *optsize = sizeof(struct sctp_authchunks) + size;
 3008                                 }
 3009                                 SCTP_TCB_UNLOCK(stcb);
 3010                         } else {
 3011                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 3012                                 error = ENOENT;
 3013                         }
 3014                         break;
 3015                 }
 3016         case SCTP_EVENT:
 3017                 {
 3018                         struct sctp_event *event;
 3019                         uint32_t event_type;
 3020 
 3021                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
 3022                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 3023 
 3024                         switch (event->se_type) {
 3025                         case SCTP_ASSOC_CHANGE:
 3026                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 3027                                 break;
 3028                         case SCTP_PEER_ADDR_CHANGE:
 3029                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 3030                                 break;
 3031                         case SCTP_REMOTE_ERROR:
 3032                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 3033                                 break;
 3034                         case SCTP_SEND_FAILED:
 3035                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 3036                                 break;
 3037                         case SCTP_SHUTDOWN_EVENT:
 3038                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 3039                                 break;
 3040                         case SCTP_ADAPTATION_INDICATION:
 3041                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 3042                                 break;
 3043                         case SCTP_PARTIAL_DELIVERY_EVENT:
 3044                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 3045                                 break;
 3046                         case SCTP_AUTHENTICATION_EVENT:
 3047                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 3048                                 break;
 3049                         case SCTP_STREAM_RESET_EVENT:
 3050                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 3051                                 break;
 3052                         case SCTP_SENDER_DRY_EVENT:
 3053                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 3054                                 break;
 3055                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 3056                                 event_type = 0;
 3057                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 3058                                 error = ENOTSUP;
 3059                                 break;
 3060                         case SCTP_ASSOC_RESET_EVENT:
 3061                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 3062                                 break;
 3063                         case SCTP_STREAM_CHANGE_EVENT:
 3064                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 3065                                 break;
 3066                         case SCTP_SEND_FAILED_EVENT:
 3067                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 3068                                 break;
 3069                         default:
 3070                                 event_type = 0;
 3071                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3072                                 error = EINVAL;
 3073                                 break;
 3074                         }
 3075                         if (event_type > 0) {
 3076                                 if (stcb) {
 3077                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
 3078                                 } else {
 3079                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3080                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3081                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3082                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
 3083                                                 SCTP_INP_RLOCK(inp);
 3084                                                 event->se_on = sctp_is_feature_on(inp, event_type);
 3085                                                 SCTP_INP_RUNLOCK(inp);
 3086                                         } else {
 3087                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3088                                                 error = EINVAL;
 3089                                         }
 3090                                 }
 3091                         }
 3092                         if (stcb != NULL) {
 3093                                 SCTP_TCB_UNLOCK(stcb);
 3094                         }
 3095                         if (error == 0) {
 3096                                 *optsize = sizeof(struct sctp_event);
 3097                         }
 3098                         break;
 3099                 }
 3100         case SCTP_RECVRCVINFO:
 3101                 {
 3102                         int onoff;
 3103 
 3104                         if (*optsize < sizeof(int)) {
 3105                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3106                                 error = EINVAL;
 3107                         } else {
 3108                                 SCTP_INP_RLOCK(inp);
 3109                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 3110                                 SCTP_INP_RUNLOCK(inp);
 3111                         }
 3112                         if (error == 0) {
 3113                                 /* return the option value */
 3114                                 *(int *)optval = onoff;
 3115                                 *optsize = sizeof(int);
 3116                         }
 3117                         break;
 3118                 }
 3119         case SCTP_RECVNXTINFO:
 3120                 {
 3121                         int onoff;
 3122 
 3123                         if (*optsize < sizeof(int)) {
 3124                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3125                                 error = EINVAL;
 3126                         } else {
 3127                                 SCTP_INP_RLOCK(inp);
 3128                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 3129                                 SCTP_INP_RUNLOCK(inp);
 3130                         }
 3131                         if (error == 0) {
 3132                                 /* return the option value */
 3133                                 *(int *)optval = onoff;
 3134                                 *optsize = sizeof(int);
 3135                         }
 3136                         break;
 3137                 }
 3138         case SCTP_DEFAULT_SNDINFO:
 3139                 {
 3140                         struct sctp_sndinfo *info;
 3141 
 3142                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
 3143                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 3144 
 3145                         if (stcb) {
 3146                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
 3147                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
 3148                                 info->snd_flags &= 0xfff0;
 3149                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
 3150                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
 3151                                 SCTP_TCB_UNLOCK(stcb);
 3152                         } else {
 3153                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3154                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3155                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3156                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
 3157                                         SCTP_INP_RLOCK(inp);
 3158                                         info->snd_sid = inp->def_send.sinfo_stream;
 3159                                         info->snd_flags = inp->def_send.sinfo_flags;
 3160                                         info->snd_flags &= 0xfff0;
 3161                                         info->snd_ppid = inp->def_send.sinfo_ppid;
 3162                                         info->snd_context = inp->def_send.sinfo_context;
 3163                                         SCTP_INP_RUNLOCK(inp);
 3164                                 } else {
 3165                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3166                                         error = EINVAL;
 3167                                 }
 3168                         }
 3169                         if (error == 0) {
 3170                                 *optsize = sizeof(struct sctp_sndinfo);
 3171                         }
 3172                         break;
 3173                 }
 3174         case SCTP_DEFAULT_PRINFO:
 3175                 {
 3176                         struct sctp_default_prinfo *info;
 3177 
 3178                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
 3179                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 3180 
 3181                         if (stcb) {
 3182                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 3183                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
 3184                                 SCTP_TCB_UNLOCK(stcb);
 3185                         } else {
 3186                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3187                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3188                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3189                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
 3190                                         SCTP_INP_RLOCK(inp);
 3191                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 3192                                         info->pr_value = inp->def_send.sinfo_timetolive;
 3193                                         SCTP_INP_RUNLOCK(inp);
 3194                                 } else {
 3195                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3196                                         error = EINVAL;
 3197                                 }
 3198                         }
 3199                         if (error == 0) {
 3200                                 *optsize = sizeof(struct sctp_default_prinfo);
 3201                         }
 3202                         break;
 3203                 }
 3204         case SCTP_PEER_ADDR_THLDS:
 3205                 {
 3206                         struct sctp_paddrthlds *thlds;
 3207                         struct sctp_nets *net;
 3208                         struct sockaddr *addr;
 3209 #if defined(INET) && defined(INET6)
 3210                         struct sockaddr_in sin_store;
 3211 #endif
 3212 
 3213                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 3214                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 3215 
 3216 #if defined(INET) && defined(INET6)
 3217                         if (thlds->spt_address.ss_family == AF_INET6) {
 3218                                 struct sockaddr_in6 *sin6;
 3219 
 3220                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
 3221                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3222                                         in6_sin6_2_sin(&sin_store, sin6);
 3223                                         addr = (struct sockaddr *)&sin_store;
 3224                                 } else {
 3225                                         addr = (struct sockaddr *)&thlds->spt_address;
 3226                                 }
 3227                         } else {
 3228                                 addr = (struct sockaddr *)&thlds->spt_address;
 3229                         }
 3230 #else
 3231                         addr = (struct sockaddr *)&thlds->spt_address;
 3232 #endif
 3233                         if (stcb != NULL) {
 3234                                 net = sctp_findnet(stcb, addr);
 3235                         } else {
 3236                                 /*
 3237                                  * We increment here since
 3238                                  * sctp_findassociation_ep_addr() wil do a
 3239                                  * decrement if it finds the stcb as long as
 3240                                  * the locked tcb (last argument) is NOT a
 3241                                  * TCB.. aka NULL.
 3242                                  */
 3243                                 net = NULL;
 3244                                 SCTP_INP_INCR_REF(inp);
 3245                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3246                                 if (stcb == NULL) {
 3247                                         SCTP_INP_DECR_REF(inp);
 3248                                 }
 3249                         }
 3250                         if ((stcb != NULL) && (net == NULL)) {
 3251 #ifdef INET
 3252                                 if (addr->sa_family == AF_INET) {
 3253                                         struct sockaddr_in *sin;
 3254 
 3255                                         sin = (struct sockaddr_in *)addr;
 3256                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3257                                                 error = EINVAL;
 3258                                                 SCTP_TCB_UNLOCK(stcb);
 3259                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3260                                                 break;
 3261                                         }
 3262                                 } else
 3263 #endif
 3264 #ifdef INET6
 3265                                 if (addr->sa_family == AF_INET6) {
 3266                                         struct sockaddr_in6 *sin6;
 3267 
 3268                                         sin6 = (struct sockaddr_in6 *)addr;
 3269                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3270                                                 error = EINVAL;
 3271                                                 SCTP_TCB_UNLOCK(stcb);
 3272                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3273                                                 break;
 3274                                         }
 3275                                 } else
 3276 #endif
 3277                                 {
 3278                                         error = EAFNOSUPPORT;
 3279                                         SCTP_TCB_UNLOCK(stcb);
 3280                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3281                                         break;
 3282                                 }
 3283                         }
 3284 
 3285                         if (stcb != NULL) {
 3286                                 if (net != NULL) {
 3287                                         thlds->spt_pathmaxrxt = net->failure_threshold;
 3288                                         thlds->spt_pathpfthld = net->pf_threshold;
 3289                                         thlds->spt_pathcpthld = 0xffff;
 3290                                 } else {
 3291                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 3292                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 3293                                         thlds->spt_pathcpthld = 0xffff;
 3294                                 }
 3295                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
 3296                                 SCTP_TCB_UNLOCK(stcb);
 3297                         } else {
 3298                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3299                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3300                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3301                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
 3302                                         /* Use endpoint defaults */
 3303                                         SCTP_INP_RLOCK(inp);
 3304                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
 3305                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
 3306                                         thlds->spt_pathcpthld = 0xffff;
 3307                                         SCTP_INP_RUNLOCK(inp);
 3308                                 } else {
 3309                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3310                                         error = EINVAL;
 3311                                 }
 3312                         }
 3313                         if (error == 0) {
 3314                                 *optsize = sizeof(struct sctp_paddrthlds);
 3315                         }
 3316                         break;
 3317                 }
 3318         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 3319                 {
 3320                         struct sctp_udpencaps *encaps;
 3321                         struct sctp_nets *net;
 3322                         struct sockaddr *addr;
 3323 #if defined(INET) && defined(INET6)
 3324                         struct sockaddr_in sin_store;
 3325 #endif
 3326 
 3327                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 3328                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 3329 
 3330 #if defined(INET) && defined(INET6)
 3331                         if (encaps->sue_address.ss_family == AF_INET6) {
 3332                                 struct sockaddr_in6 *sin6;
 3333 
 3334                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
 3335                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3336                                         in6_sin6_2_sin(&sin_store, sin6);
 3337                                         addr = (struct sockaddr *)&sin_store;
 3338                                 } else {
 3339                                         addr = (struct sockaddr *)&encaps->sue_address;
 3340                                 }
 3341                         } else {
 3342                                 addr = (struct sockaddr *)&encaps->sue_address;
 3343                         }
 3344 #else
 3345                         addr = (struct sockaddr *)&encaps->sue_address;
 3346 #endif
 3347                         if (stcb) {
 3348                                 net = sctp_findnet(stcb, addr);
 3349                         } else {
 3350                                 /*
 3351                                  * We increment here since
 3352                                  * sctp_findassociation_ep_addr() wil do a
 3353                                  * decrement if it finds the stcb as long as
 3354                                  * the locked tcb (last argument) is NOT a
 3355                                  * TCB.. aka NULL.
 3356                                  */
 3357                                 net = NULL;
 3358                                 SCTP_INP_INCR_REF(inp);
 3359                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3360                                 if (stcb == NULL) {
 3361                                         SCTP_INP_DECR_REF(inp);
 3362                                 }
 3363                         }
 3364                         if ((stcb != NULL) && (net == NULL)) {
 3365 #ifdef INET
 3366                                 if (addr->sa_family == AF_INET) {
 3367                                         struct sockaddr_in *sin;
 3368 
 3369                                         sin = (struct sockaddr_in *)addr;
 3370                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3371                                                 error = EINVAL;
 3372                                                 SCTP_TCB_UNLOCK(stcb);
 3373                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3374                                                 break;
 3375                                         }
 3376                                 } else
 3377 #endif
 3378 #ifdef INET6
 3379                                 if (addr->sa_family == AF_INET6) {
 3380                                         struct sockaddr_in6 *sin6;
 3381 
 3382                                         sin6 = (struct sockaddr_in6 *)addr;
 3383                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3384                                                 error = EINVAL;
 3385                                                 SCTP_TCB_UNLOCK(stcb);
 3386                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3387                                                 break;
 3388                                         }
 3389                                 } else
 3390 #endif
 3391                                 {
 3392                                         error = EAFNOSUPPORT;
 3393                                         SCTP_TCB_UNLOCK(stcb);
 3394                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3395                                         break;
 3396                                 }
 3397                         }
 3398 
 3399                         if (stcb != NULL) {
 3400                                 if (net) {
 3401                                         encaps->sue_port = net->port;
 3402                                 } else {
 3403                                         encaps->sue_port = stcb->asoc.port;
 3404                                 }
 3405                                 SCTP_TCB_UNLOCK(stcb);
 3406                         } else {
 3407                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3408                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3409                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3410                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
 3411                                         SCTP_INP_RLOCK(inp);
 3412                                         encaps->sue_port = inp->sctp_ep.port;
 3413                                         SCTP_INP_RUNLOCK(inp);
 3414                                 } else {
 3415                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3416                                         error = EINVAL;
 3417                                 }
 3418                         }
 3419                         if (error == 0) {
 3420                                 *optsize = sizeof(struct sctp_udpencaps);
 3421                         }
 3422                         break;
 3423                 }
 3424         case SCTP_ECN_SUPPORTED:
 3425                 {
 3426                         struct sctp_assoc_value *av;
 3427 
 3428                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3429                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3430 
 3431                         if (stcb) {
 3432                                 av->assoc_value = stcb->asoc.ecn_supported;
 3433                                 SCTP_TCB_UNLOCK(stcb);
 3434                         } else {
 3435                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3436                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3437                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3438                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3439                                         SCTP_INP_RLOCK(inp);
 3440                                         av->assoc_value = inp->ecn_supported;
 3441                                         SCTP_INP_RUNLOCK(inp);
 3442                                 } else {
 3443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3444                                         error = EINVAL;
 3445                                 }
 3446                         }
 3447                         if (error == 0) {
 3448                                 *optsize = sizeof(struct sctp_assoc_value);
 3449                         }
 3450                         break;
 3451                 }
 3452         case SCTP_PR_SUPPORTED:
 3453                 {
 3454                         struct sctp_assoc_value *av;
 3455 
 3456                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3457                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3458 
 3459                         if (stcb) {
 3460                                 av->assoc_value = stcb->asoc.prsctp_supported;
 3461                                 SCTP_TCB_UNLOCK(stcb);
 3462                         } else {
 3463                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3464                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3465                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3466                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3467                                         SCTP_INP_RLOCK(inp);
 3468                                         av->assoc_value = inp->prsctp_supported;
 3469                                         SCTP_INP_RUNLOCK(inp);
 3470                                 } else {
 3471                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3472                                         error = EINVAL;
 3473                                 }
 3474                         }
 3475                         if (error == 0) {
 3476                                 *optsize = sizeof(struct sctp_assoc_value);
 3477                         }
 3478                         break;
 3479                 }
 3480         case SCTP_AUTH_SUPPORTED:
 3481                 {
 3482                         struct sctp_assoc_value *av;
 3483 
 3484                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3485                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3486 
 3487                         if (stcb) {
 3488                                 av->assoc_value = stcb->asoc.auth_supported;
 3489                                 SCTP_TCB_UNLOCK(stcb);
 3490                         } else {
 3491                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3492                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3493                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3494                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3495                                         SCTP_INP_RLOCK(inp);
 3496                                         av->assoc_value = inp->auth_supported;
 3497                                         SCTP_INP_RUNLOCK(inp);
 3498                                 } else {
 3499                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3500                                         error = EINVAL;
 3501                                 }
 3502                         }
 3503                         if (error == 0) {
 3504                                 *optsize = sizeof(struct sctp_assoc_value);
 3505                         }
 3506                         break;
 3507                 }
 3508         case SCTP_ASCONF_SUPPORTED:
 3509                 {
 3510                         struct sctp_assoc_value *av;
 3511 
 3512                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3513                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3514 
 3515                         if (stcb) {
 3516                                 av->assoc_value = stcb->asoc.asconf_supported;
 3517                                 SCTP_TCB_UNLOCK(stcb);
 3518                         } else {
 3519                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3520                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3521                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 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                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3550                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3551                                         SCTP_INP_RLOCK(inp);
 3552                                         av->assoc_value = inp->reconfig_supported;
 3553                                         SCTP_INP_RUNLOCK(inp);
 3554                                 } else {
 3555                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3556                                         error = EINVAL;
 3557                                 }
 3558                         }
 3559                         if (error == 0) {
 3560                                 *optsize = sizeof(struct sctp_assoc_value);
 3561                         }
 3562                         break;
 3563                 }
 3564         case SCTP_NRSACK_SUPPORTED:
 3565                 {
 3566                         struct sctp_assoc_value *av;
 3567 
 3568                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3569                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3570 
 3571                         if (stcb) {
 3572                                 av->assoc_value = stcb->asoc.nrsack_supported;
 3573                                 SCTP_TCB_UNLOCK(stcb);
 3574                         } else {
 3575                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3576                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3577                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3578                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3579                                         SCTP_INP_RLOCK(inp);
 3580                                         av->assoc_value = inp->nrsack_supported;
 3581                                         SCTP_INP_RUNLOCK(inp);
 3582                                 } else {
 3583                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3584                                         error = EINVAL;
 3585                                 }
 3586                         }
 3587                         if (error == 0) {
 3588                                 *optsize = sizeof(struct sctp_assoc_value);
 3589                         }
 3590                         break;
 3591                 }
 3592         case SCTP_PKTDROP_SUPPORTED:
 3593                 {
 3594                         struct sctp_assoc_value *av;
 3595 
 3596                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3597                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3598 
 3599                         if (stcb) {
 3600                                 av->assoc_value = stcb->asoc.pktdrop_supported;
 3601                                 SCTP_TCB_UNLOCK(stcb);
 3602                         } else {
 3603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3605                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3606                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3607                                         SCTP_INP_RLOCK(inp);
 3608                                         av->assoc_value = inp->pktdrop_supported;
 3609                                         SCTP_INP_RUNLOCK(inp);
 3610                                 } else {
 3611                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3612                                         error = EINVAL;
 3613                                 }
 3614                         }
 3615                         if (error == 0) {
 3616                                 *optsize = sizeof(struct sctp_assoc_value);
 3617                         }
 3618                         break;
 3619                 }
 3620         case SCTP_ENABLE_STREAM_RESET:
 3621                 {
 3622                         struct sctp_assoc_value *av;
 3623 
 3624                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3625                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3626 
 3627                         if (stcb) {
 3628                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
 3629                                 SCTP_TCB_UNLOCK(stcb);
 3630                         } else {
 3631                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3632                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3633                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3634                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3635                                         SCTP_INP_RLOCK(inp);
 3636                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
 3637                                         SCTP_INP_RUNLOCK(inp);
 3638                                 } else {
 3639                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3640                                         error = EINVAL;
 3641                                 }
 3642                         }
 3643                         if (error == 0) {
 3644                                 *optsize = sizeof(struct sctp_assoc_value);
 3645                         }
 3646                         break;
 3647                 }
 3648         case SCTP_PR_STREAM_STATUS:
 3649                 {
 3650                         struct sctp_prstatus *sprstat;
 3651                         uint16_t sid;
 3652                         uint16_t policy;
 3653 
 3654                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3655                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3656 
 3657                         sid = sprstat->sprstat_sid;
 3658                         policy = sprstat->sprstat_policy;
 3659 #if defined(SCTP_DETAILED_STR_STATS)
 3660                         if ((stcb != NULL) &&
 3661                             (sid < stcb->asoc.streamoutcnt) &&
 3662                             (policy != SCTP_PR_SCTP_NONE) &&
 3663                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3664                             (policy == SCTP_PR_SCTP_ALL))) {
 3665                                 if (policy == SCTP_PR_SCTP_ALL) {
 3666                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3667                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3668                                 } else {
 3669                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
 3670                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
 3671                                 }
 3672 #else
 3673                         if ((stcb != NULL) &&
 3674                             (sid < stcb->asoc.streamoutcnt) &&
 3675                             (policy == SCTP_PR_SCTP_ALL)) {
 3676                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3677                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3678 #endif
 3679                         } else {
 3680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3681                                 error = EINVAL;
 3682                         }
 3683                         if (stcb != NULL) {
 3684                                 SCTP_TCB_UNLOCK(stcb);
 3685                         }
 3686                         if (error == 0) {
 3687                                 *optsize = sizeof(struct sctp_prstatus);
 3688                         }
 3689                         break;
 3690                 }
 3691         case SCTP_PR_ASSOC_STATUS:
 3692                 {
 3693                         struct sctp_prstatus *sprstat;
 3694                         uint16_t policy;
 3695 
 3696                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3697                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3698 
 3699                         policy = sprstat->sprstat_policy;
 3700                         if ((stcb != NULL) &&
 3701                             (policy != SCTP_PR_SCTP_NONE) &&
 3702                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3703                             (policy == SCTP_PR_SCTP_ALL))) {
 3704                                 if (policy == SCTP_PR_SCTP_ALL) {
 3705                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
 3706                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
 3707                                 } else {
 3708                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
 3709                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
 3710                                 }
 3711                         } else {
 3712                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3713                                 error = EINVAL;
 3714                         }
 3715                         if (stcb != NULL) {
 3716                                 SCTP_TCB_UNLOCK(stcb);
 3717                         }
 3718                         if (error == 0) {
 3719                                 *optsize = sizeof(struct sctp_prstatus);
 3720                         }
 3721                         break;
 3722                 }
 3723         case SCTP_MAX_CWND:
 3724                 {
 3725                         struct sctp_assoc_value *av;
 3726 
 3727                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3728                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3729 
 3730                         if (stcb) {
 3731                                 av->assoc_value = stcb->asoc.max_cwnd;
 3732                                 SCTP_TCB_UNLOCK(stcb);
 3733                         } else {
 3734                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3735                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3736                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3737                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3738                                         SCTP_INP_RLOCK(inp);
 3739                                         av->assoc_value = inp->max_cwnd;
 3740                                         SCTP_INP_RUNLOCK(inp);
 3741                                 } else {
 3742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3743                                         error = EINVAL;
 3744                                 }
 3745                         }
 3746                         if (error == 0) {
 3747                                 *optsize = sizeof(struct sctp_assoc_value);
 3748                         }
 3749                         break;
 3750                 }
 3751         default:
 3752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3753                 error = ENOPROTOOPT;
 3754                 break;
 3755         }                       /* end switch (sopt->sopt_name) */
 3756         if (error) {
 3757                 *optsize = 0;
 3758         }
 3759         return (error);
 3760 }
 3761 
 3762 static int
 3763 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 3764     void *p)
 3765 {
 3766         int error, set_opt;
 3767         uint32_t *mopt;
 3768         struct sctp_tcb *stcb = NULL;
 3769         struct sctp_inpcb *inp = NULL;
 3770         uint32_t vrf_id;
 3771 
 3772         if (optval == NULL) {
 3773                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3774                 return (EINVAL);
 3775         }
 3776         inp = (struct sctp_inpcb *)so->so_pcb;
 3777         if (inp == NULL) {
 3778                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3779                 return (EINVAL);
 3780         }
 3781         vrf_id = inp->def_vrf_id;
 3782 
 3783         error = 0;
 3784         switch (optname) {
 3785         case SCTP_NODELAY:
 3786         case SCTP_AUTOCLOSE:
 3787         case SCTP_AUTO_ASCONF:
 3788         case SCTP_EXPLICIT_EOR:
 3789         case SCTP_DISABLE_FRAGMENTS:
 3790         case SCTP_USE_EXT_RCVINFO:
 3791         case SCTP_I_WANT_MAPPED_V4_ADDR:
 3792                 /* copy in the option value */
 3793                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3794                 set_opt = 0;
 3795                 if (error)
 3796                         break;
 3797                 switch (optname) {
 3798                 case SCTP_DISABLE_FRAGMENTS:
 3799                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 3800                         break;
 3801                 case SCTP_AUTO_ASCONF:
 3802                         /*
 3803                          * NOTE: we don't really support this flag
 3804                          */
 3805                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 3806                                 /* only valid for bound all sockets */
 3807                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
 3808                                     (*mopt != 0)) {
 3809                                         /* forbidden by admin */
 3810                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
 3811                                         return (EPERM);
 3812                                 }
 3813                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 3814                         } else {
 3815                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3816                                 return (EINVAL);
 3817                         }
 3818                         break;
 3819                 case SCTP_EXPLICIT_EOR:
 3820                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 3821                         break;
 3822                 case SCTP_USE_EXT_RCVINFO:
 3823                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 3824                         break;
 3825                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 3826                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3827                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 3828                         } else {
 3829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3830                                 return (EINVAL);
 3831                         }
 3832                         break;
 3833                 case SCTP_NODELAY:
 3834                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 3835                         break;
 3836                 case SCTP_AUTOCLOSE:
 3837                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3838                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3839                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3840                                 return (EINVAL);
 3841                         }
 3842                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 3843                         /*
 3844                          * The value is in ticks. Note this does not effect
 3845                          * old associations, only new ones.
 3846                          */
 3847                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 3848                         break;
 3849                 }
 3850                 SCTP_INP_WLOCK(inp);
 3851                 if (*mopt != 0) {
 3852                         sctp_feature_on(inp, set_opt);
 3853                 } else {
 3854                         sctp_feature_off(inp, set_opt);
 3855                 }
 3856                 SCTP_INP_WUNLOCK(inp);
 3857                 break;
 3858         case SCTP_REUSE_PORT:
 3859                 {
 3860                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 3862                                 /* Can't set it after we are bound */
 3863                                 error = EINVAL;
 3864                                 break;
 3865                         }
 3866                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 3867                                 /* Can't do this for a 1-m socket */
 3868                                 error = EINVAL;
 3869                                 break;
 3870                         }
 3871                         if (optval)
 3872                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3873                         else
 3874                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3875                         break;
 3876                 }
 3877         case SCTP_PARTIAL_DELIVERY_POINT:
 3878                 {
 3879                         uint32_t *value;
 3880 
 3881                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 3882                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 3883                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3884                                 error = EINVAL;
 3885                                 break;
 3886                         }
 3887                         inp->partial_delivery_point = *value;
 3888                         break;
 3889                 }
 3890         case SCTP_FRAGMENT_INTERLEAVE:
 3891                 /* not yet until we re-write sctp_recvmsg() */
 3892                 {
 3893                         uint32_t *level;
 3894 
 3895                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 3896                         if (*level == SCTP_FRAG_LEVEL_2) {
 3897                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3898                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3899                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 3900                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3901                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3902                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 3903                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3904                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3905 
 3906                         } else {
 3907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3908                                 error = EINVAL;
 3909                         }
 3910                         break;
 3911                 }
 3912         case SCTP_INTERLEAVING_SUPPORTED:
 3913                 {
 3914                         struct sctp_assoc_value *av;
 3915 
 3916                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3917                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3918 
 3919                         if (stcb) {
 3920                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3921                                 error = EINVAL;
 3922                                 SCTP_TCB_UNLOCK(stcb);
 3923                         } else {
 3924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3926                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3927                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 3928                                         SCTP_INP_WLOCK(inp);
 3929                                         if (av->assoc_value == 0) {
 3930                                                 inp->idata_supported = 0;
 3931                                         } else {
 3932                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
 3933                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
 3934                                                         inp->idata_supported = 1;
 3935                                                 } else {
 3936                                                         /*
 3937                                                          * Must have Frag
 3938                                                          * interleave and
 3939                                                          * stream interleave
 3940                                                          * on
 3941                                                          */
 3942                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3943                                                         error = EINVAL;
 3944                                                 }
 3945                                         }
 3946                                         SCTP_INP_WUNLOCK(inp);
 3947                                 } else {
 3948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3949                                         error = EINVAL;
 3950                                 }
 3951                         }
 3952                         break;
 3953                 }
 3954         case SCTP_CMT_ON_OFF:
 3955                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 3956                         struct sctp_assoc_value *av;
 3957 
 3958                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3959                         if (av->assoc_value > SCTP_CMT_MAX) {
 3960                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3961                                 error = EINVAL;
 3962                                 break;
 3963                         }
 3964                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3965                         if (stcb) {
 3966                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3967                                 SCTP_TCB_UNLOCK(stcb);
 3968                         } else {
 3969                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3970                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3971                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3972                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3973                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 3974                                         SCTP_INP_WLOCK(inp);
 3975                                         inp->sctp_cmt_on_off = av->assoc_value;
 3976                                         SCTP_INP_WUNLOCK(inp);
 3977                                 }
 3978                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 3979                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3980                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 3981                                         SCTP_INP_RLOCK(inp);
 3982                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3983                                                 SCTP_TCB_LOCK(stcb);
 3984                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3985                                                 SCTP_TCB_UNLOCK(stcb);
 3986                                         }
 3987                                         SCTP_INP_RUNLOCK(inp);
 3988                                 }
 3989                         }
 3990                 } else {
 3991                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3992                         error = ENOPROTOOPT;
 3993                 }
 3994                 break;
 3995         case SCTP_PLUGGABLE_CC:
 3996                 {
 3997                         struct sctp_assoc_value *av;
 3998                         struct sctp_nets *net;
 3999 
 4000                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4001                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
 4002                             (av->assoc_value != SCTP_CC_HSTCP) &&
 4003                             (av->assoc_value != SCTP_CC_HTCP) &&
 4004                             (av->assoc_value != SCTP_CC_RTCC)) {
 4005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4006                                 error = EINVAL;
 4007                                 break;
 4008                         }
 4009                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4010                         if (stcb) {
 4011                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 4012                                 stcb->asoc.congestion_control_module = av->assoc_value;
 4013                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 4014                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4015                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 4016                                         }
 4017                                 }
 4018                                 SCTP_TCB_UNLOCK(stcb);
 4019                         } else {
 4020                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4021                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4022                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4023                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4024                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 4025                                         SCTP_INP_WLOCK(inp);
 4026                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 4027                                         SCTP_INP_WUNLOCK(inp);
 4028                                 }
 4029                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4030                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4031                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 4032                                         SCTP_INP_RLOCK(inp);
 4033                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4034                                                 SCTP_TCB_LOCK(stcb);
 4035                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 4036                                                 stcb->asoc.congestion_control_module = av->assoc_value;
 4037                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 4038                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4039                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 4040                                                         }
 4041                                                 }
 4042                                                 SCTP_TCB_UNLOCK(stcb);
 4043                                         }
 4044                                         SCTP_INP_RUNLOCK(inp);
 4045                                 }
 4046                         }
 4047                         break;
 4048                 }
 4049         case SCTP_CC_OPTION:
 4050                 {
 4051                         struct sctp_cc_option *cc_opt;
 4052 
 4053                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
 4054                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 4055                         if (stcb == NULL) {
 4056                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4057                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
 4058                                         SCTP_INP_RLOCK(inp);
 4059                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4060                                                 SCTP_TCB_LOCK(stcb);
 4061                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
 4062                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
 4063                                                 }
 4064                                                 SCTP_TCB_UNLOCK(stcb);
 4065                                         }
 4066                                         SCTP_INP_RUNLOCK(inp);
 4067                                 } else {
 4068                                         error = EINVAL;
 4069                                 }
 4070                         } else {
 4071                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 4072                                         error = ENOTSUP;
 4073                                 } else {
 4074                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
 4075                                             cc_opt);
 4076                                 }
 4077                                 SCTP_TCB_UNLOCK(stcb);
 4078                         }
 4079                         break;
 4080                 }
 4081         case SCTP_PLUGGABLE_SS:
 4082                 {
 4083                         struct sctp_assoc_value *av;
 4084 
 4085                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4086                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
 4087                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
 4088                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
 4089                             (av->assoc_value != SCTP_SS_PRIORITY) &&
 4090                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
 4091                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
 4092                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4093                                 error = EINVAL;
 4094                                 break;
 4095                         }
 4096                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4097                         if (stcb) {
 4098                                 SCTP_TCB_SEND_LOCK(stcb);
 4099                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4100                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4101                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4102                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4103                                 SCTP_TCB_SEND_UNLOCK(stcb);
 4104                                 SCTP_TCB_UNLOCK(stcb);
 4105                         } else {
 4106                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4107                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4108                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4109                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4110                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 4111                                         SCTP_INP_WLOCK(inp);
 4112                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
 4113                                         SCTP_INP_WUNLOCK(inp);
 4114                                 }
 4115                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4116                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4117                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 4118                                         SCTP_INP_RLOCK(inp);
 4119                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4120                                                 SCTP_TCB_LOCK(stcb);
 4121                                                 SCTP_TCB_SEND_LOCK(stcb);
 4122                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4123                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4124                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4125                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4126                                                 SCTP_TCB_SEND_UNLOCK(stcb);
 4127                                                 SCTP_TCB_UNLOCK(stcb);
 4128                                         }
 4129                                         SCTP_INP_RUNLOCK(inp);
 4130                                 }
 4131                         }
 4132                         break;
 4133                 }
 4134         case SCTP_SS_VALUE:
 4135                 {
 4136                         struct sctp_stream_value *av;
 4137 
 4138                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
 4139                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4140                         if (stcb) {
 4141                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 4142                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 4143                                     av->stream_value) < 0)) {
 4144                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4145                                         error = EINVAL;
 4146                                 }
 4147                                 SCTP_TCB_UNLOCK(stcb);
 4148                         } else {
 4149                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4150                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
 4151                                         SCTP_INP_RLOCK(inp);
 4152                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4153                                                 SCTP_TCB_LOCK(stcb);
 4154                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
 4155                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
 4156                                                             &stcb->asoc,
 4157                                                             &stcb->asoc.strmout[av->stream_id],
 4158                                                             av->stream_value);
 4159                                                 }
 4160                                                 SCTP_TCB_UNLOCK(stcb);
 4161                                         }
 4162                                         SCTP_INP_RUNLOCK(inp);
 4163                                 } else {
 4164                                         /*
 4165                                          * Can't set stream value without
 4166                                          * association
 4167                                          */
 4168                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4169                                         error = EINVAL;
 4170                                 }
 4171                         }
 4172                         break;
 4173                 }
 4174         case SCTP_CLR_STAT_LOG:
 4175                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4176                 error = EOPNOTSUPP;
 4177                 break;
 4178         case SCTP_CONTEXT:
 4179                 {
 4180                         struct sctp_assoc_value *av;
 4181 
 4182                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4183                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4184 
 4185                         if (stcb) {
 4186                                 stcb->asoc.context = av->assoc_value;
 4187                                 SCTP_TCB_UNLOCK(stcb);
 4188                         } else {
 4189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4191                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4192                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4193                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 4194                                         SCTP_INP_WLOCK(inp);
 4195                                         inp->sctp_context = av->assoc_value;
 4196                                         SCTP_INP_WUNLOCK(inp);
 4197                                 }
 4198                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4199                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4200                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 4201                                         SCTP_INP_RLOCK(inp);
 4202                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4203                                                 SCTP_TCB_LOCK(stcb);
 4204                                                 stcb->asoc.context = av->assoc_value;
 4205                                                 SCTP_TCB_UNLOCK(stcb);
 4206                                         }
 4207                                         SCTP_INP_RUNLOCK(inp);
 4208                                 }
 4209                         }
 4210                         break;
 4211                 }
 4212         case SCTP_VRF_ID:
 4213                 {
 4214                         uint32_t *default_vrfid;
 4215 
 4216                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 4217                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 4218                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4219                                 error = EINVAL;
 4220                                 break;
 4221                         }
 4222                         inp->def_vrf_id = *default_vrfid;
 4223                         break;
 4224                 }
 4225         case SCTP_DEL_VRF_ID:
 4226                 {
 4227                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4228                         error = EOPNOTSUPP;
 4229                         break;
 4230                 }
 4231         case SCTP_ADD_VRF_ID:
 4232                 {
 4233                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4234                         error = EOPNOTSUPP;
 4235                         break;
 4236                 }
 4237         case SCTP_DELAYED_SACK:
 4238                 {
 4239                         struct sctp_sack_info *sack;
 4240 
 4241                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 4242                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 4243                         if (sack->sack_delay) {
 4244                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 4245                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 4246                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 4247                                         sack->sack_delay = TICKS_TO_MSEC(1);
 4248                                 }
 4249                         }
 4250                         if (stcb) {
 4251                                 if (sack->sack_delay) {
 4252                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4253                                 }
 4254                                 if (sack->sack_freq) {
 4255                                         stcb->asoc.sack_freq = sack->sack_freq;
 4256                                 }
 4257                                 SCTP_TCB_UNLOCK(stcb);
 4258                         } else {
 4259                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4260                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4261                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4262                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
 4263                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
 4264                                         SCTP_INP_WLOCK(inp);
 4265                                         if (sack->sack_delay) {
 4266                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 4267                                         }
 4268                                         if (sack->sack_freq) {
 4269                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 4270                                         }
 4271                                         SCTP_INP_WUNLOCK(inp);
 4272                                 }
 4273                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4274                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
 4275                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
 4276                                         SCTP_INP_RLOCK(inp);
 4277                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4278                                                 SCTP_TCB_LOCK(stcb);
 4279                                                 if (sack->sack_delay) {
 4280                                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4281                                                 }
 4282                                                 if (sack->sack_freq) {
 4283                                                         stcb->asoc.sack_freq = sack->sack_freq;
 4284                                                 }
 4285                                                 SCTP_TCB_UNLOCK(stcb);
 4286                                         }
 4287                                         SCTP_INP_RUNLOCK(inp);
 4288                                 }
 4289                         }
 4290                         break;
 4291                 }
 4292         case SCTP_AUTH_CHUNK:
 4293                 {
 4294                         struct sctp_authchunk *sauth;
 4295 
 4296                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 4297 
 4298                         SCTP_INP_WLOCK(inp);
 4299                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 4300                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4301                                 error = EINVAL;
 4302                         } else {
 4303                                 inp->auth_supported = 1;
 4304                         }
 4305                         SCTP_INP_WUNLOCK(inp);
 4306                         break;
 4307                 }
 4308         case SCTP_AUTH_KEY:
 4309                 {
 4310                         struct sctp_authkey *sca;
 4311                         struct sctp_keyhead *shared_keys;
 4312                         sctp_sharedkey_t *shared_key;
 4313                         sctp_key_t *key = NULL;
 4314                         size_t size;
 4315 
 4316                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 4317                         if (sca->sca_keylength == 0) {
 4318                                 size = optsize - sizeof(struct sctp_authkey);
 4319                         } else {
 4320                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
 4321                                         size = sca->sca_keylength;
 4322                                 } else {
 4323                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4324                                         error = EINVAL;
 4325                                         break;
 4326                                 }
 4327                         }
 4328                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 4329 
 4330                         if (stcb) {
 4331                                 shared_keys = &stcb->asoc.shared_keys;
 4332                                 /* clear the cached keys for this key id */
 4333                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4334                                 /*
 4335                                  * create the new shared key and
 4336                                  * insert/replace it
 4337                                  */
 4338                                 if (size > 0) {
 4339                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4340                                         if (key == NULL) {
 4341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4342                                                 error = ENOMEM;
 4343                                                 SCTP_TCB_UNLOCK(stcb);
 4344                                                 break;
 4345                                         }
 4346                                 }
 4347                                 shared_key = sctp_alloc_sharedkey();
 4348                                 if (shared_key == NULL) {
 4349                                         sctp_free_key(key);
 4350                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4351                                         error = ENOMEM;
 4352                                         SCTP_TCB_UNLOCK(stcb);
 4353                                         break;
 4354                                 }
 4355                                 shared_key->key = key;
 4356                                 shared_key->keyid = sca->sca_keynumber;
 4357                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4358                                 SCTP_TCB_UNLOCK(stcb);
 4359                         } else {
 4360                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4361                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4362                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4363                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
 4364                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
 4365                                         SCTP_INP_WLOCK(inp);
 4366                                         shared_keys = &inp->sctp_ep.shared_keys;
 4367                                         /*
 4368                                          * clear the cached keys on all
 4369                                          * assocs for this key id
 4370                                          */
 4371                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 4372                                         /*
 4373                                          * create the new shared key and
 4374                                          * insert/replace it
 4375                                          */
 4376                                         if (size > 0) {
 4377                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4378                                                 if (key == NULL) {
 4379                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4380                                                         error = ENOMEM;
 4381                                                         SCTP_INP_WUNLOCK(inp);
 4382                                                         break;
 4383                                                 }
 4384                                         }
 4385                                         shared_key = sctp_alloc_sharedkey();
 4386                                         if (shared_key == NULL) {
 4387                                                 sctp_free_key(key);
 4388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4389                                                 error = ENOMEM;
 4390                                                 SCTP_INP_WUNLOCK(inp);
 4391                                                 break;
 4392                                         }
 4393                                         shared_key->key = key;
 4394                                         shared_key->keyid = sca->sca_keynumber;
 4395                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
 4396                                         SCTP_INP_WUNLOCK(inp);
 4397                                 }
 4398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4399                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
 4400                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
 4401                                         SCTP_INP_RLOCK(inp);
 4402                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4403                                                 SCTP_TCB_LOCK(stcb);
 4404                                                 shared_keys = &stcb->asoc.shared_keys;
 4405                                                 /*
 4406                                                  * clear the cached keys for
 4407                                                  * this key id
 4408                                                  */
 4409                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4410                                                 /*
 4411                                                  * create the new shared key
 4412                                                  * and insert/replace it
 4413                                                  */
 4414                                                 if (size > 0) {
 4415                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4416                                                         if (key == NULL) {
 4417                                                                 SCTP_TCB_UNLOCK(stcb);
 4418                                                                 continue;
 4419                                                         }
 4420                                                 }
 4421                                                 shared_key = sctp_alloc_sharedkey();
 4422                                                 if (shared_key == NULL) {
 4423                                                         sctp_free_key(key);
 4424                                                         SCTP_TCB_UNLOCK(stcb);
 4425                                                         continue;
 4426                                                 }
 4427                                                 shared_key->key = key;
 4428                                                 shared_key->keyid = sca->sca_keynumber;
 4429                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4430                                                 SCTP_TCB_UNLOCK(stcb);
 4431                                         }
 4432                                         SCTP_INP_RUNLOCK(inp);
 4433                                 }
 4434                         }
 4435                         break;
 4436                 }
 4437         case SCTP_HMAC_IDENT:
 4438                 {
 4439                         struct sctp_hmacalgo *shmac;
 4440                         sctp_hmaclist_t *hmaclist;
 4441                         uint16_t hmacid;
 4442                         uint32_t i;
 4443 
 4444                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 4445                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
 4446                             (shmac->shmac_number_of_idents > 0xffff)) {
 4447                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4448                                 error = EINVAL;
 4449                                 break;
 4450                         }
 4451 
 4452                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
 4453                         if (hmaclist == NULL) {
 4454                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4455                                 error = ENOMEM;
 4456                                 break;
 4457                         }
 4458                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 4459                                 hmacid = shmac->shmac_idents[i];
 4460                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 4461                                          /* invalid HMACs were found */ ;
 4462                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4463                                         error = EINVAL;
 4464                                         sctp_free_hmaclist(hmaclist);
 4465                                         goto sctp_set_hmac_done;
 4466                                 }
 4467                         }
 4468                         for (i = 0; i < hmaclist->num_algo; i++) {
 4469                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 4470                                         /* already in list */
 4471                                         break;
 4472                                 }
 4473                         }
 4474                         if (i == hmaclist->num_algo) {
 4475                                 /* not found in list */
 4476                                 sctp_free_hmaclist(hmaclist);
 4477                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4478                                 error = EINVAL;
 4479                                 break;
 4480                         }
 4481                         /* set it on the endpoint */
 4482                         SCTP_INP_WLOCK(inp);
 4483                         if (inp->sctp_ep.local_hmacs)
 4484                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 4485                         inp->sctp_ep.local_hmacs = hmaclist;
 4486                         SCTP_INP_WUNLOCK(inp);
 4487         sctp_set_hmac_done:
 4488                         break;
 4489                 }
 4490         case SCTP_AUTH_ACTIVE_KEY:
 4491                 {
 4492                         struct sctp_authkeyid *scact;
 4493 
 4494                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
 4495                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 4496 
 4497                         /* set the active key on the right place */
 4498                         if (stcb) {
 4499                                 /* set the active key on the assoc */
 4500                                 if (sctp_auth_setactivekey(stcb,
 4501                                     scact->scact_keynumber)) {
 4502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 4503                                             SCTP_FROM_SCTP_USRREQ,
 4504                                             EINVAL);
 4505                                         error = EINVAL;
 4506                                 }
 4507                                 SCTP_TCB_UNLOCK(stcb);
 4508                         } else {
 4509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4511                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4512                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4513                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
 4514                                         SCTP_INP_WLOCK(inp);
 4515                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
 4516                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4517                                                 error = EINVAL;
 4518                                         }
 4519                                         SCTP_INP_WUNLOCK(inp);
 4520                                 }
 4521                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4522                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4523                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
 4524                                         SCTP_INP_RLOCK(inp);
 4525                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4526                                                 SCTP_TCB_LOCK(stcb);
 4527                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
 4528                                                 SCTP_TCB_UNLOCK(stcb);
 4529                                         }
 4530                                         SCTP_INP_RUNLOCK(inp);
 4531                                 }
 4532                         }
 4533                         break;
 4534                 }
 4535         case SCTP_AUTH_DELETE_KEY:
 4536                 {
 4537                         struct sctp_authkeyid *scdel;
 4538 
 4539                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
 4540                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 4541 
 4542                         /* delete the key from the right place */
 4543                         if (stcb) {
 4544                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
 4545                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4546                                         error = EINVAL;
 4547                                 }
 4548                                 SCTP_TCB_UNLOCK(stcb);
 4549                         } else {
 4550                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4551                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4552                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4553                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4554                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
 4555                                         SCTP_INP_WLOCK(inp);
 4556                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
 4557                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4558                                                 error = EINVAL;
 4559                                         }
 4560                                         SCTP_INP_WUNLOCK(inp);
 4561                                 }
 4562                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4563                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4564                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
 4565                                         SCTP_INP_RLOCK(inp);
 4566                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4567                                                 SCTP_TCB_LOCK(stcb);
 4568                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
 4569                                                 SCTP_TCB_UNLOCK(stcb);
 4570                                         }
 4571                                         SCTP_INP_RUNLOCK(inp);
 4572                                 }
 4573                         }
 4574                         break;
 4575                 }
 4576         case SCTP_AUTH_DEACTIVATE_KEY:
 4577                 {
 4578                         struct sctp_authkeyid *keyid;
 4579 
 4580                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
 4581                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 4582 
 4583                         /* deactivate the key from the right place */
 4584                         if (stcb) {
 4585                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
 4586                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4587                                         error = EINVAL;
 4588                                 }
 4589                                 SCTP_TCB_UNLOCK(stcb);
 4590                         } else {
 4591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4593                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4594                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4595                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
 4596                                         SCTP_INP_WLOCK(inp);
 4597                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
 4598                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4599                                                 error = EINVAL;
 4600                                         }
 4601                                         SCTP_INP_WUNLOCK(inp);
 4602                                 }
 4603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4604                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4605                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
 4606                                         SCTP_INP_RLOCK(inp);
 4607                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4608                                                 SCTP_TCB_LOCK(stcb);
 4609                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
 4610                                                 SCTP_TCB_UNLOCK(stcb);
 4611                                         }
 4612                                         SCTP_INP_RUNLOCK(inp);
 4613                                 }
 4614                         }
 4615                         break;
 4616                 }
 4617         case SCTP_ENABLE_STREAM_RESET:
 4618                 {
 4619                         struct sctp_assoc_value *av;
 4620 
 4621                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4622                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
 4623                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4624                                 error = EINVAL;
 4625                                 break;
 4626                         }
 4627                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4628                         if (stcb) {
 4629                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
 4630                                 SCTP_TCB_UNLOCK(stcb);
 4631                         } else {
 4632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4634                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4635                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4636                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 4637                                         SCTP_INP_WLOCK(inp);
 4638                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
 4639                                         SCTP_INP_WUNLOCK(inp);
 4640                                 }
 4641                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4642                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4643                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 4644                                         SCTP_INP_RLOCK(inp);
 4645                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4646                                                 SCTP_TCB_LOCK(stcb);
 4647                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
 4648                                                 SCTP_TCB_UNLOCK(stcb);
 4649                                         }
 4650                                         SCTP_INP_RUNLOCK(inp);
 4651                                 }
 4652 
 4653                         }
 4654                         break;
 4655                 }
 4656         case SCTP_RESET_STREAMS:
 4657                 {
 4658                         struct sctp_reset_streams *strrst;
 4659                         int i, send_out = 0;
 4660                         int send_in = 0;
 4661 
 4662                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
 4663                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
 4664                         if (stcb == NULL) {
 4665                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4666                                 error = ENOENT;
 4667                                 break;
 4668                         }
 4669                         if (stcb->asoc.reconfig_supported == 0) {
 4670                                 /*
 4671                                  * Peer does not support the chunk type.
 4672                                  */
 4673                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4674                                 error = EOPNOTSUPP;
 4675                                 SCTP_TCB_UNLOCK(stcb);
 4676                                 break;
 4677                         }
 4678                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
 4679                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4680                                 error = EINVAL;
 4681                                 SCTP_TCB_UNLOCK(stcb);
 4682                                 break;
 4683                         }
 4684                         if (sizeof(struct sctp_reset_streams) +
 4685                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
 4686                                 error = EINVAL;
 4687                                 SCTP_TCB_UNLOCK(stcb);
 4688                                 break;
 4689                         }
 4690                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
 4691                                 send_in = 1;
 4692                                 if (stcb->asoc.stream_reset_outstanding) {
 4693                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4694                                         error = EALREADY;
 4695                                         SCTP_TCB_UNLOCK(stcb);
 4696                                         break;
 4697                                 }
 4698                         }
 4699                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 4700                                 send_out = 1;
 4701                         }
 4702                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
 4703                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4704                                 error = ENOMEM;
 4705                                 SCTP_TCB_UNLOCK(stcb);
 4706                                 break;
 4707                         }
 4708                         if ((send_in == 0) && (send_out == 0)) {
 4709                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4710                                 error = EINVAL;
 4711                                 SCTP_TCB_UNLOCK(stcb);
 4712                                 break;
 4713                         }
 4714                         for (i = 0; i < strrst->srs_number_streams; i++) {
 4715                                 if ((send_in) &&
 4716                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
 4717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4718                                         error = EINVAL;
 4719                                         break;
 4720                                 }
 4721                                 if ((send_out) &&
 4722                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
 4723                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4724                                         error = EINVAL;
 4725                                         break;
 4726                                 }
 4727                         }
 4728                         if (error) {
 4729                                 SCTP_TCB_UNLOCK(stcb);
 4730                                 break;
 4731                         }
 4732                         if (send_out) {
 4733                                 int cnt;
 4734                                 uint16_t strm;
 4735 
 4736                                 if (strrst->srs_number_streams) {
 4737                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
 4738                                                 strm = strrst->srs_stream_list[i];
 4739                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
 4740                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
 4741                                                         cnt++;
 4742                                                 }
 4743                                         }
 4744                                 } else {
 4745                                         /* Its all */
 4746                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
 4747                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
 4748                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
 4749                                                         cnt++;
 4750                                                 }
 4751                                         }
 4752                                 }
 4753                         }
 4754                         if (send_in) {
 4755                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 4756                                     strrst->srs_stream_list,
 4757                                     send_in, 0, 0, 0, 0, 0);
 4758                         } else {
 4759                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
 4760                         }
 4761                         if (error == 0) {
 4762                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4763                         } else {
 4764                                 /*
 4765                                  * For outgoing streams don't report any
 4766                                  * problems in sending the request to the
 4767                                  * application. XXX: Double check resetting
 4768                                  * incoming streams.
 4769                                  */
 4770                                 error = 0;
 4771                         }
 4772                         SCTP_TCB_UNLOCK(stcb);
 4773                         break;
 4774                 }
 4775         case SCTP_ADD_STREAMS:
 4776                 {
 4777                         struct sctp_add_streams *stradd;
 4778                         uint8_t addstream = 0;
 4779                         uint16_t add_o_strmcnt = 0;
 4780                         uint16_t add_i_strmcnt = 0;
 4781 
 4782                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
 4783                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
 4784                         if (stcb == NULL) {
 4785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4786                                 error = ENOENT;
 4787                                 break;
 4788                         }
 4789                         if (stcb->asoc.reconfig_supported == 0) {
 4790                                 /*
 4791                                  * Peer does not support the chunk type.
 4792                                  */
 4793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4794                                 error = EOPNOTSUPP;
 4795                                 SCTP_TCB_UNLOCK(stcb);
 4796                                 break;
 4797                         }
 4798                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
 4799                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4800                                 error = EINVAL;
 4801                                 SCTP_TCB_UNLOCK(stcb);
 4802                                 break;
 4803                         }
 4804                         if (stcb->asoc.stream_reset_outstanding) {
 4805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4806                                 error = EALREADY;
 4807                                 SCTP_TCB_UNLOCK(stcb);
 4808                                 break;
 4809                         }
 4810                         if ((stradd->sas_outstrms == 0) &&
 4811                             (stradd->sas_instrms == 0)) {
 4812                                 error = EINVAL;
 4813                                 goto skip_stuff;
 4814                         }
 4815                         if (stradd->sas_outstrms) {
 4816                                 addstream = 1;
 4817                                 /* We allocate here */
 4818                                 add_o_strmcnt = stradd->sas_outstrms;
 4819                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
 4820                                         /* You can't have more than 64k */
 4821                                         error = EINVAL;
 4822                                         goto skip_stuff;
 4823                                 }
 4824                         }
 4825                         if (stradd->sas_instrms) {
 4826                                 int cnt;
 4827 
 4828                                 addstream |= 2;
 4829                                 /*
 4830                                  * We allocate inside
 4831                                  * sctp_send_str_reset_req()
 4832                                  */
 4833                                 add_i_strmcnt = stradd->sas_instrms;
 4834                                 cnt = add_i_strmcnt;
 4835                                 cnt += stcb->asoc.streamincnt;
 4836                                 if (cnt > 0x0000ffff) {
 4837                                         /* You can't have more than 64k */
 4838                                         error = EINVAL;
 4839                                         goto skip_stuff;
 4840                                 }
 4841                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
 4842                                         /* More than you are allowed */
 4843                                         error = EINVAL;
 4844                                         goto skip_stuff;
 4845                                 }
 4846                         }
 4847                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
 4848                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4849         skip_stuff:
 4850                         SCTP_TCB_UNLOCK(stcb);
 4851                         break;
 4852                 }
 4853         case SCTP_RESET_ASSOC:
 4854                 {
 4855                         int i;
 4856                         uint32_t *value;
 4857 
 4858                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 4859                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
 4860                         if (stcb == NULL) {
 4861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4862                                 error = ENOENT;
 4863                                 break;
 4864                         }
 4865                         if (stcb->asoc.reconfig_supported == 0) {
 4866                                 /*
 4867                                  * Peer does not support the chunk type.
 4868                                  */
 4869                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4870                                 error = EOPNOTSUPP;
 4871                                 SCTP_TCB_UNLOCK(stcb);
 4872                                 break;
 4873                         }
 4874                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
 4875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4876                                 error = EINVAL;
 4877                                 SCTP_TCB_UNLOCK(stcb);
 4878                                 break;
 4879                         }
 4880                         if (stcb->asoc.stream_reset_outstanding) {
 4881                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4882                                 error = EALREADY;
 4883                                 SCTP_TCB_UNLOCK(stcb);
 4884                                 break;
 4885                         }
 4886                         /*
 4887                          * Is there any data pending in the send or sent
 4888                          * queues?
 4889                          */
 4890                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
 4891                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
 4892                 busy_out:
 4893                                 error = EBUSY;
 4894                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4895                                 SCTP_TCB_UNLOCK(stcb);
 4896                                 break;
 4897                         }
 4898                         /* Do any streams have data queued? */
 4899                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
 4900                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
 4901                                         goto busy_out;
 4902                                 }
 4903                         }
 4904                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
 4905                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4906                         SCTP_TCB_UNLOCK(stcb);
 4907                         break;
 4908                 }
 4909         case SCTP_CONNECT_X:
 4910                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4911                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4912                         error = EINVAL;
 4913                         break;
 4914                 }
 4915                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 4916                 break;
 4917         case SCTP_CONNECT_X_DELAYED:
 4918                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4919                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4920                         error = EINVAL;
 4921                         break;
 4922                 }
 4923                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 4924                 break;
 4925         case SCTP_CONNECT_X_COMPLETE:
 4926                 {
 4927                         struct sockaddr *sa;
 4928 
 4929                         /* FIXME MT: check correct? */
 4930                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 4931 
 4932                         /* find tcb */
 4933                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4934                                 SCTP_INP_RLOCK(inp);
 4935                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4936                                 if (stcb) {
 4937                                         SCTP_TCB_LOCK(stcb);
 4938                                 }
 4939                                 SCTP_INP_RUNLOCK(inp);
 4940                         } else {
 4941                                 /*
 4942                                  * We increment here since
 4943                                  * sctp_findassociation_ep_addr() wil do a
 4944                                  * decrement if it finds the stcb as long as
 4945                                  * the locked tcb (last argument) is NOT a
 4946                                  * TCB.. aka NULL.
 4947                                  */
 4948                                 SCTP_INP_INCR_REF(inp);
 4949                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
 4950                                 if (stcb == NULL) {
 4951                                         SCTP_INP_DECR_REF(inp);
 4952                                 }
 4953                         }
 4954 
 4955                         if (stcb == NULL) {
 4956                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4957                                 error = ENOENT;
 4958                                 break;
 4959                         }
 4960                         if (stcb->asoc.delayed_connection == 1) {
 4961                                 stcb->asoc.delayed_connection = 0;
 4962                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4963                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 4964                                     stcb->asoc.primary_destination,
 4965                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
 4966                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4967                         } else {
 4968                                 /*
 4969                                  * already expired or did not use delayed
 4970                                  * connectx
 4971                                  */
 4972                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4973                                 error = EALREADY;
 4974                         }
 4975                         SCTP_TCB_UNLOCK(stcb);
 4976                         break;
 4977                 }
 4978         case SCTP_MAX_BURST:
 4979                 {
 4980                         struct sctp_assoc_value *av;
 4981 
 4982                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4983                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4984 
 4985                         if (stcb) {
 4986                                 stcb->asoc.max_burst = av->assoc_value;
 4987                                 SCTP_TCB_UNLOCK(stcb);
 4988                         } else {
 4989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4991                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4992                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4993                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
 4994                                         SCTP_INP_WLOCK(inp);
 4995                                         inp->sctp_ep.max_burst = av->assoc_value;
 4996                                         SCTP_INP_WUNLOCK(inp);
 4997                                 }
 4998                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 4999                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 5000                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
 5001                                         SCTP_INP_RLOCK(inp);
 5002                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5003                                                 SCTP_TCB_LOCK(stcb);
 5004                                                 stcb->asoc.max_burst = av->assoc_value;
 5005                                                 SCTP_TCB_UNLOCK(stcb);
 5006                                         }
 5007                                         SCTP_INP_RUNLOCK(inp);
 5008                                 }
 5009                         }
 5010                         break;
 5011                 }
 5012         case SCTP_MAXSEG:
 5013                 {
 5014                         struct sctp_assoc_value *av;
 5015                         int ovh;
 5016 
 5017                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 5018                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 5019 
 5020                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 5021                                 ovh = SCTP_MED_OVERHEAD;
 5022                         } else {
 5023                                 ovh = SCTP_MED_V4_OVERHEAD;
 5024                         }
 5025                         if (stcb) {
 5026                                 if (av->assoc_value) {
 5027                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 5028                                 } else {
 5029                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 5030                                 }
 5031                                 SCTP_TCB_UNLOCK(stcb);
 5032                         } else {
 5033                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5034                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5035                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5036                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 5037                                         SCTP_INP_WLOCK(inp);
 5038                                         /*
 5039                                          * FIXME MT: I think this is not in
 5040                                          * tune with the API ID
 5041                                          */
 5042                                         if (av->assoc_value) {
 5043                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
 5044                                         } else {
 5045                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 5046                                         }
 5047                                         SCTP_INP_WUNLOCK(inp);
 5048                                 } else {
 5049                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5050                                         error = EINVAL;
 5051                                 }
 5052                         }
 5053                         break;
 5054                 }
 5055         case SCTP_EVENTS:
 5056                 {
 5057                         struct sctp_event_subscribe *events;
 5058 
 5059                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 5060 
 5061                         SCTP_INP_WLOCK(inp);
 5062                         if (events->sctp_data_io_event) {
 5063                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 5064                         } else {
 5065                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 5066                         }
 5067 
 5068                         if (events->sctp_association_event) {
 5069                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5070                         } else {
 5071                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5072                         }
 5073 
 5074                         if (events->sctp_address_event) {
 5075                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5076                         } else {
 5077                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5078                         }
 5079 
 5080                         if (events->sctp_send_failure_event) {
 5081                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5082                         } else {
 5083                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5084                         }
 5085 
 5086                         if (events->sctp_peer_error_event) {
 5087                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 5088                         } else {
 5089                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 5090                         }
 5091 
 5092                         if (events->sctp_shutdown_event) {
 5093                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5094                         } else {
 5095                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5096                         }
 5097 
 5098                         if (events->sctp_partial_delivery_event) {
 5099                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 5100                         } else {
 5101                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 5102                         }
 5103 
 5104                         if (events->sctp_adaptation_layer_event) {
 5105                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5106                         } else {
 5107                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5108                         }
 5109 
 5110                         if (events->sctp_authentication_event) {
 5111                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5112                         } else {
 5113                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5114                         }
 5115 
 5116                         if (events->sctp_sender_dry_event) {
 5117                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5118                         } else {
 5119                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5120                         }
 5121 
 5122                         if (events->sctp_stream_reset_event) {
 5123                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5124                         } else {
 5125                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5126                         }
 5127                         SCTP_INP_WUNLOCK(inp);
 5128 
 5129                         SCTP_INP_RLOCK(inp);
 5130                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5131                                 SCTP_TCB_LOCK(stcb);
 5132                                 if (events->sctp_association_event) {
 5133                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5134                                 } else {
 5135                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5136                                 }
 5137                                 if (events->sctp_address_event) {
 5138                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5139                                 } else {
 5140                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5141                                 }
 5142                                 if (events->sctp_send_failure_event) {
 5143                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5144                                 } else {
 5145                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5146                                 }
 5147                                 if (events->sctp_peer_error_event) {
 5148                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5149                                 } else {
 5150                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5151                                 }
 5152                                 if (events->sctp_shutdown_event) {
 5153                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5154                                 } else {
 5155                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5156                                 }
 5157                                 if (events->sctp_partial_delivery_event) {
 5158                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5159                                 } else {
 5160                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5161                                 }
 5162                                 if (events->sctp_adaptation_layer_event) {
 5163                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5164                                 } else {
 5165                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5166                                 }
 5167                                 if (events->sctp_authentication_event) {
 5168                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5169                                 } else {
 5170                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5171                                 }
 5172                                 if (events->sctp_sender_dry_event) {
 5173                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5174                                 } else {
 5175                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5176                                 }
 5177                                 if (events->sctp_stream_reset_event) {
 5178                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5179                                 } else {
 5180                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5181                                 }
 5182                                 SCTP_TCB_UNLOCK(stcb);
 5183                         }
 5184                         /*
 5185                          * Send up the sender dry event only for 1-to-1
 5186                          * style sockets.
 5187                          */
 5188                         if (events->sctp_sender_dry_event) {
 5189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 5191                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 5192                                         if (stcb) {
 5193                                                 SCTP_TCB_LOCK(stcb);
 5194                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 5195                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 5196                                                     (stcb->asoc.stream_queue_cnt == 0)) {
 5197                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 5198                                                 }
 5199                                                 SCTP_TCB_UNLOCK(stcb);
 5200                                         }
 5201                                 }
 5202                         }
 5203                         SCTP_INP_RUNLOCK(inp);
 5204                         break;
 5205                 }
 5206         case SCTP_ADAPTATION_LAYER:
 5207                 {
 5208                         struct sctp_setadaptation *adap_bits;
 5209 
 5210                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 5211                         SCTP_INP_WLOCK(inp);
 5212                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 5213                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
 5214                         SCTP_INP_WUNLOCK(inp);
 5215                         break;
 5216                 }
 5217 #ifdef SCTP_DEBUG
 5218         case SCTP_SET_INITIAL_DBG_SEQ:
 5219                 {
 5220                         uint32_t *vvv;
 5221 
 5222                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 5223                         SCTP_INP_WLOCK(inp);
 5224                         inp->sctp_ep.initial_sequence_debug = *vvv;
 5225                         SCTP_INP_WUNLOCK(inp);
 5226                         break;
 5227                 }
 5228 #endif
 5229         case SCTP_DEFAULT_SEND_PARAM:
 5230                 {
 5231                         struct sctp_sndrcvinfo *s_info;
 5232 
 5233                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 5234                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 5235 
 5236                         if (stcb) {
 5237                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5238                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5239                                 } else {
 5240                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5241                                         error = EINVAL;
 5242                                 }
 5243                                 SCTP_TCB_UNLOCK(stcb);
 5244                         } else {
 5245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5246                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5247                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5248                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
 5249                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
 5250                                         SCTP_INP_WLOCK(inp);
 5251                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 5252                                         SCTP_INP_WUNLOCK(inp);
 5253                                 }
 5254                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5255                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
 5256                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
 5257                                         SCTP_INP_RLOCK(inp);
 5258                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5259                                                 SCTP_TCB_LOCK(stcb);
 5260                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5261                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5262                                                 }
 5263                                                 SCTP_TCB_UNLOCK(stcb);
 5264                                         }
 5265                                         SCTP_INP_RUNLOCK(inp);
 5266                                 }
 5267                         }
 5268                         break;
 5269                 }
 5270         case SCTP_PEER_ADDR_PARAMS:
 5271                 {
 5272                         struct sctp_paddrparams *paddrp;
 5273                         struct sctp_nets *net;
 5274                         struct sockaddr *addr;
 5275 #if defined(INET) && defined(INET6)
 5276                         struct sockaddr_in sin_store;
 5277 #endif
 5278 
 5279                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 5280                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 5281 
 5282 #if defined(INET) && defined(INET6)
 5283                         if (paddrp->spp_address.ss_family == AF_INET6) {
 5284                                 struct sockaddr_in6 *sin6;
 5285 
 5286                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 5287                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5288                                         in6_sin6_2_sin(&sin_store, sin6);
 5289                                         addr = (struct sockaddr *)&sin_store;
 5290                                 } else {
 5291                                         addr = (struct sockaddr *)&paddrp->spp_address;
 5292                                 }
 5293                         } else {
 5294                                 addr = (struct sockaddr *)&paddrp->spp_address;
 5295                         }
 5296 #else
 5297                         addr = (struct sockaddr *)&paddrp->spp_address;
 5298 #endif
 5299                         if (stcb != NULL) {
 5300                                 net = sctp_findnet(stcb, addr);
 5301                         } else {
 5302                                 /*
 5303                                  * We increment here since
 5304                                  * sctp_findassociation_ep_addr() wil do a
 5305                                  * decrement if it finds the stcb as long as
 5306                                  * the locked tcb (last argument) is NOT a
 5307                                  * TCB.. aka NULL.
 5308                                  */
 5309                                 net = NULL;
 5310                                 SCTP_INP_INCR_REF(inp);
 5311                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 5312                                     &net, NULL, NULL);
 5313                                 if (stcb == NULL) {
 5314                                         SCTP_INP_DECR_REF(inp);
 5315                                 }
 5316                         }
 5317                         if ((stcb != NULL) && (net == NULL)) {
 5318 #ifdef INET
 5319                                 if (addr->sa_family == AF_INET) {
 5320 
 5321                                         struct sockaddr_in *sin;
 5322 
 5323                                         sin = (struct sockaddr_in *)addr;
 5324                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 5325                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5326                                                 SCTP_TCB_UNLOCK(stcb);
 5327                                                 error = EINVAL;
 5328                                                 break;
 5329                                         }
 5330                                 } else
 5331 #endif
 5332 #ifdef INET6
 5333                                 if (addr->sa_family == AF_INET6) {
 5334                                         struct sockaddr_in6 *sin6;
 5335 
 5336                                         sin6 = (struct sockaddr_in6 *)addr;
 5337                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5338                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5339                                                 SCTP_TCB_UNLOCK(stcb);
 5340                                                 error = EINVAL;
 5341                                                 break;
 5342                                         }
 5343                                 } else
 5344 #endif
 5345                                 {
 5346                                         error = EAFNOSUPPORT;
 5347                                         SCTP_TCB_UNLOCK(stcb);
 5348                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5349                                         break;
 5350                                 }
 5351                         }
 5352                         /* sanity checks */
 5353                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 5354                                 if (stcb)
 5355                                         SCTP_TCB_UNLOCK(stcb);
 5356                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5357                                 return (EINVAL);
 5358                         }
 5359 
 5360                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 5361                                 if (stcb)
 5362                                         SCTP_TCB_UNLOCK(stcb);
 5363                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5364                                 return (EINVAL);
 5365                         }
 5366                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
 5367                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
 5368                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
 5369                                 if (stcb)
 5370                                         SCTP_TCB_UNLOCK(stcb);
 5371                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5372                                 return (EINVAL);
 5373                         }
 5374 
 5375                         if (stcb != NULL) {
 5376                                 /************************TCB SPECIFIC SET ******************/
 5377                                 if (net != NULL) {
 5378                                         /************************NET SPECIFIC SET ******************/
 5379                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5380                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 5381                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
 5382                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5383                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 5384                                                 }
 5385                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5386                                         }
 5387                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5388                                                 if (paddrp->spp_hbinterval) {
 5389                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
 5390                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5391                                                         net->heart_beat_delay = 0;
 5392                                                 }
 5393                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5394                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 5395                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5396                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5397                                         }
 5398                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 5399                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
 5400                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5401                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 5402                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5403                                                 }
 5404                                         }
 5405                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 5406                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5407                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5408                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
 5409                                                 }
 5410                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5411                                                 net->mtu = paddrp->spp_pathmtu;
 5412                                                 switch (net->ro._l_addr.sa.sa_family) {
 5413 #ifdef INET
 5414                                                 case AF_INET:
 5415                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
 5416                                                         break;
 5417 #endif
 5418 #ifdef INET6
 5419                                                 case AF_INET6:
 5420                                                         net->mtu += SCTP_MIN_OVERHEAD;
 5421                                                         break;
 5422 #endif
 5423                                                 default:
 5424                                                         break;
 5425                                                 }
 5426                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 5427                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
 5428                                                 }
 5429                                         }
 5430                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5431                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5432                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5433                                                 }
 5434                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5435                                         }
 5436                                         if (paddrp->spp_pathmaxrxt) {
 5437                                                 if (net->dest_state & SCTP_ADDR_PF) {
 5438                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5439                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 5440                                                         }
 5441                                                 } else {
 5442                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5443                                                             (net->error_count > net->pf_threshold)) {
 5444                                                                 net->dest_state |= SCTP_ADDR_PF;
 5445                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5446                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5447                                                                     stcb->sctp_ep, stcb, net,
 5448                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
 5449                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5450                                                         }
 5451                                                 }
 5452                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5453                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5454                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5455                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5456                                                         }
 5457                                                 } else {
 5458                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5459                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 5460                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5461                                                         }
 5462                                                 }
 5463                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 5464                                         }
 5465                                         if (paddrp->spp_flags & SPP_DSCP) {
 5466                                                 net->dscp = paddrp->spp_dscp & 0xfc;
 5467                                                 net->dscp |= 0x01;
 5468                                         }
 5469 #ifdef INET6
 5470                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5471                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 5472                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5473                                                         net->flowlabel |= 0x80000000;
 5474                                                 }
 5475                                         }
 5476 #endif
 5477                                 } else {
 5478                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 5479                                         if (paddrp->spp_pathmaxrxt != 0) {
 5480                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 5481                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5482                                                         if (net->dest_state & SCTP_ADDR_PF) {
 5483                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5484                                                                         net->dest_state &= ~SCTP_ADDR_PF;
 5485                                                                 }
 5486                                                         } else {
 5487                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5488                                                                     (net->error_count > net->pf_threshold)) {
 5489                                                                         net->dest_state |= SCTP_ADDR_PF;
 5490                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5491                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5492                                                                             stcb->sctp_ep, stcb, net,
 5493                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
 5494                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5495                                                                 }
 5496                                                         }
 5497                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5498                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5499                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5500                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5501                                                                 }
 5502                                                         } else {
 5503                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5504                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 5505                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5506                                                                 }
 5507                                                         }
 5508                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
 5509                                                 }
 5510                                         }
 5511 
 5512                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5513                                                 if (paddrp->spp_hbinterval != 0) {
 5514                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 5515                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5516                                                         stcb->asoc.heart_beat_delay = 0;
 5517                                                 }
 5518                                                 /* Turn back on the timer */
 5519                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5520                                                         if (paddrp->spp_hbinterval != 0) {
 5521                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
 5522                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5523                                                                 net->heart_beat_delay = 0;
 5524                                                         }
 5525                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 5526                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5527                                                         }
 5528                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5529                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
 5530                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5531                                                 }
 5532                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5533                                         }
 5534                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5535                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5536                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
 5537                                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5538                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 5539                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5540                                                                             inp, stcb, net,
 5541                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
 5542                                                                 }
 5543                                                         }
 5544                                                 }
 5545                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5546                                         }
 5547                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 5548                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5549                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5550                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5551                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
 5552                                                         }
 5553                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5554                                                         net->mtu = paddrp->spp_pathmtu;
 5555                                                         switch (net->ro._l_addr.sa.sa_family) {
 5556 #ifdef INET
 5557                                                         case AF_INET:
 5558                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
 5559                                                                 break;
 5560 #endif
 5561 #ifdef INET6
 5562                                                         case AF_INET6:
 5563                                                                 net->mtu += SCTP_MIN_OVERHEAD;
 5564                                                                 break;
 5565 #endif
 5566                                                         default:
 5567                                                                 break;
 5568                                                         }
 5569                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 5570                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
 5571                                                         }
 5572                                                 }
 5573                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
 5574                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5575                                         }
 5576                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5577                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5578                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5579                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5580                                                         }
 5581                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5582                                                 }
 5583                                                 stcb->asoc.default_mtu = 0;
 5584                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5585                                         }
 5586                                         if (paddrp->spp_flags & SPP_DSCP) {
 5587                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5588                                                         net->dscp = paddrp->spp_dscp & 0xfc;
 5589                                                         net->dscp |= 0x01;
 5590                                                 }
 5591                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
 5592                                                 stcb->asoc.default_dscp |= 0x01;
 5593                                         }
 5594 #ifdef INET6
 5595                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5596                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5597                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 5598                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5599                                                                 net->flowlabel |= 0x80000000;
 5600                                                         }
 5601                                                 }
 5602                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5603                                                 stcb->asoc.default_flowlabel |= 0x80000000;
 5604                                         }
 5605 #endif
 5606                                 }
 5607                                 SCTP_TCB_UNLOCK(stcb);
 5608                         } else {
 5609                                 /************************NO TCB, SET TO default stuff ******************/
 5610                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5611                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5612                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5613                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
 5614                                         SCTP_INP_WLOCK(inp);
 5615                                         /*
 5616                                          * For the TOS/FLOWLABEL stuff you
 5617                                          * set it with the options on the
 5618                                          * socket
 5619                                          */
 5620                                         if (paddrp->spp_pathmaxrxt != 0) {
 5621                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
 5622                                         }
 5623 
 5624                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 5625                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5626                                         else if (paddrp->spp_hbinterval != 0) {
 5627                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 5628                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
 5629                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5630                                         }
 5631 
 5632                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5633                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5634                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5635                                                 } else if (paddrp->spp_hbinterval) {
 5636                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5637                                                 }
 5638                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5639                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5640                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5641                                         }
 5642                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5643                                                 inp->sctp_ep.default_mtu = 0;
 5644                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5645                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 5646                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
 5647                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5648                                         }
 5649                                         if (paddrp->spp_flags & SPP_DSCP) {
 5650                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
 5651                                                 inp->sctp_ep.default_dscp |= 0x01;
 5652                                         }
 5653 #ifdef INET6
 5654                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5655                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 5656                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5657                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
 5658                                                 }
 5659                                         }
 5660 #endif
 5661                                         SCTP_INP_WUNLOCK(inp);
 5662                                 } else {
 5663                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5664                                         error = EINVAL;
 5665                                 }
 5666                         }
 5667                         break;
 5668                 }
 5669         case SCTP_RTOINFO:
 5670                 {
 5671                         struct sctp_rtoinfo *srto;
 5672                         uint32_t new_init, new_min, new_max;
 5673 
 5674                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
 5675                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 5676 
 5677                         if (stcb) {
 5678                                 if (srto->srto_initial)
 5679                                         new_init = srto->srto_initial;
 5680                                 else
 5681                                         new_init = stcb->asoc.initial_rto;
 5682                                 if (srto->srto_max)
 5683                                         new_max = srto->srto_max;
 5684                                 else
 5685                                         new_max = stcb->asoc.maxrto;
 5686                                 if (srto->srto_min)
 5687                                         new_min = srto->srto_min;
 5688                                 else
 5689                                         new_min = stcb->asoc.minrto;
 5690                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 5691                                         stcb->asoc.initial_rto = new_init;
 5692                                         stcb->asoc.maxrto = new_max;
 5693                                         stcb->asoc.minrto = new_min;
 5694                                 } else {
 5695                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5696                                         error = EINVAL;
 5697                                 }
 5698                                 SCTP_TCB_UNLOCK(stcb);
 5699                         } else {
 5700                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5701                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5702                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5703                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
 5704                                         SCTP_INP_WLOCK(inp);
 5705                                         if (srto->srto_initial)
 5706                                                 new_init = srto->srto_initial;
 5707                                         else
 5708                                                 new_init = inp->sctp_ep.initial_rto;
 5709                                         if (srto->srto_max)
 5710                                                 new_max = srto->srto_max;
 5711                                         else
 5712                                                 new_max = inp->sctp_ep.sctp_maxrto;
 5713                                         if (srto->srto_min)
 5714                                                 new_min = srto->srto_min;
 5715                                         else
 5716                                                 new_min = inp->sctp_ep.sctp_minrto;
 5717                                         if ((new_min <= new_init) && (new_init <= new_max)) {
 5718                                                 inp->sctp_ep.initial_rto = new_init;
 5719                                                 inp->sctp_ep.sctp_maxrto = new_max;
 5720                                                 inp->sctp_ep.sctp_minrto = new_min;
 5721                                         } else {
 5722                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5723                                                 error = EINVAL;
 5724                                         }
 5725                                         SCTP_INP_WUNLOCK(inp);
 5726                                 } else {
 5727                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5728                                         error = EINVAL;
 5729                                 }
 5730                         }
 5731                         break;
 5732                 }
 5733         case SCTP_ASSOCINFO:
 5734                 {
 5735                         struct sctp_assocparams *sasoc;
 5736 
 5737                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
 5738                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 5739                         if (sasoc->sasoc_cookie_life) {
 5740                                 /* boundary check the cookie life */
 5741                                 if (sasoc->sasoc_cookie_life < 1000)
 5742                                         sasoc->sasoc_cookie_life = 1000;
 5743                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 5744                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 5745                                 }
 5746                         }
 5747                         if (stcb) {
 5748                                 if (sasoc->sasoc_asocmaxrxt)
 5749                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 5750                                 if (sasoc->sasoc_cookie_life) {
 5751                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5752                                 }
 5753                                 SCTP_TCB_UNLOCK(stcb);
 5754                         } else {
 5755                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5756                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5757                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 5758                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
 5759                                         SCTP_INP_WLOCK(inp);
 5760                                         if (sasoc->sasoc_asocmaxrxt)
 5761                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 5762                                         if (sasoc->sasoc_cookie_life) {
 5763                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5764                                         }
 5765                                         SCTP_INP_WUNLOCK(inp);
 5766                                 } else {
 5767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5768                                         error = EINVAL;
 5769                                 }
 5770                         }
 5771                         break;
 5772                 }
 5773         case SCTP_INITMSG:
 5774                 {
 5775                         struct sctp_initmsg *sinit;
 5776 
 5777                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
 5778                         SCTP_INP_WLOCK(inp);
 5779                         if (sinit->sinit_num_ostreams)
 5780                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
 5781 
 5782                         if (sinit->sinit_max_instreams)
 5783                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
 5784 
 5785                         if (sinit->sinit_max_attempts)
 5786                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
 5787 
 5788                         if (sinit->sinit_max_init_timeo)
 5789                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
 5790                         SCTP_INP_WUNLOCK(inp);
 5791                         break;
 5792                 }
 5793         case SCTP_PRIMARY_ADDR:
 5794                 {
 5795                         struct sctp_setprim *spa;
 5796                         struct sctp_nets *net;
 5797                         struct sockaddr *addr;
 5798 #if defined(INET) && defined(INET6)
 5799                         struct sockaddr_in sin_store;
 5800 #endif
 5801 
 5802                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 5803                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 5804 
 5805 #if defined(INET) && defined(INET6)
 5806                         if (spa->ssp_addr.ss_family == AF_INET6) {
 5807                                 struct sockaddr_in6 *sin6;
 5808 
 5809                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
 5810                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5811                                         in6_sin6_2_sin(&sin_store, sin6);
 5812                                         addr = (struct sockaddr *)&sin_store;
 5813                                 } else {
 5814                                         addr = (struct sockaddr *)&spa->ssp_addr;
 5815                                 }
 5816                         } else {
 5817                                 addr = (struct sockaddr *)&spa->ssp_addr;
 5818                         }
 5819 #else
 5820                         addr = (struct sockaddr *)&spa->ssp_addr;
 5821 #endif
 5822                         if (stcb != NULL) {
 5823                                 net = sctp_findnet(stcb, addr);
 5824                         } else {
 5825                                 /*
 5826                                  * We increment here since
 5827                                  * sctp_findassociation_ep_addr() wil do a
 5828                                  * decrement if it finds the stcb as long as
 5829                                  * the locked tcb (last argument) is NOT a
 5830                                  * TCB.. aka NULL.
 5831                                  */
 5832                                 net = NULL;
 5833                                 SCTP_INP_INCR_REF(inp);
 5834                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 5835                                     &net, NULL, NULL);
 5836                                 if (stcb == NULL) {
 5837                                         SCTP_INP_DECR_REF(inp);
 5838                                 }
 5839                         }
 5840 
 5841                         if ((stcb != NULL) && (net != NULL)) {
 5842                                 if (net != stcb->asoc.primary_destination) {
 5843                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 5844                                                 /* Ok we need to set it */
 5845                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
 5846                                                         if ((stcb->asoc.alternate) &&
 5847                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
 5848                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
 5849                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
 5850                                                                 stcb->asoc.alternate = NULL;
 5851                                                         }
 5852                                                 } else {
 5853                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5854                                                         error = EINVAL;
 5855                                                 }
 5856                                         } else {
 5857                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5858                                                 error = EINVAL;
 5859                                         }
 5860                                 }
 5861                         } else {
 5862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5863                                 error = EINVAL;
 5864                         }
 5865                         if (stcb != NULL) {
 5866                                 SCTP_TCB_UNLOCK(stcb);
 5867                         }
 5868                         break;
 5869                 }
 5870         case SCTP_SET_DYNAMIC_PRIMARY:
 5871                 {
 5872                         union sctp_sockstore *ss;
 5873 
 5874                         error = priv_check(curthread,
 5875                             PRIV_NETINET_RESERVEDPORT);
 5876                         if (error)
 5877                                 break;
 5878 
 5879                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
 5880                         /* SUPER USER CHECK? */
 5881                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
 5882                         break;
 5883                 }
 5884         case SCTP_SET_PEER_PRIMARY_ADDR:
 5885                 {
 5886                         struct sctp_setpeerprim *sspp;
 5887                         struct sockaddr *addr;
 5888 #if defined(INET) && defined(INET6)
 5889                         struct sockaddr_in sin_store;
 5890 #endif
 5891 
 5892                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
 5893                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
 5894                         if (stcb != NULL) {
 5895                                 struct sctp_ifa *ifa;
 5896 
 5897 #if defined(INET) && defined(INET6)
 5898                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
 5899                                         struct sockaddr_in6 *sin6;
 5900 
 5901                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
 5902                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5903                                                 in6_sin6_2_sin(&sin_store, sin6);
 5904                                                 addr = (struct sockaddr *)&sin_store;
 5905                                         } else {
 5906                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
 5907                                         }
 5908                                 } else {
 5909                                         addr = (struct sockaddr *)&sspp->sspp_addr;
 5910                                 }
 5911 #else
 5912                                 addr = (struct sockaddr *)&sspp->sspp_addr;
 5913 #endif
 5914                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
 5915                                 if (ifa == NULL) {
 5916                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5917                                         error = EINVAL;
 5918                                         goto out_of_it;
 5919                                 }
 5920                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 5921                                         /*
 5922                                          * Must validate the ifa found is in
 5923                                          * our ep
 5924                                          */
 5925                                         struct sctp_laddr *laddr;
 5926                                         int found = 0;
 5927 
 5928                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 5929                                                 if (laddr->ifa == NULL) {
 5930                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
 5931                                                             __func__);
 5932                                                         continue;
 5933                                                 }
 5934                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
 5935                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
 5936                                                         continue;
 5937                                                 }
 5938                                                 if (laddr->ifa == ifa) {
 5939                                                         found = 1;
 5940                                                         break;
 5941                                                 }
 5942                                         }
 5943                                         if (!found) {
 5944                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5945                                                 error = EINVAL;
 5946                                                 goto out_of_it;
 5947                                         }
 5948                                 } else {
 5949                                         switch (addr->sa_family) {
 5950 #ifdef INET
 5951                                         case AF_INET:
 5952                                                 {
 5953                                                         struct sockaddr_in *sin;
 5954 
 5955                                                         sin = (struct sockaddr_in *)addr;
 5956                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 5957                                                             &sin->sin_addr) != 0) {
 5958                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5959                                                                 error = EINVAL;
 5960                                                                 goto out_of_it;
 5961                                                         }
 5962                                                         break;
 5963                                                 }
 5964 #endif
 5965 #ifdef INET6
 5966                                         case AF_INET6:
 5967                                                 {
 5968                                                         struct sockaddr_in6 *sin6;
 5969 
 5970                                                         sin6 = (struct sockaddr_in6 *)addr;
 5971                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 5972                                                             &sin6->sin6_addr) != 0) {
 5973                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5974                                                                 error = EINVAL;
 5975                                                                 goto out_of_it;
 5976                                                         }
 5977                                                         break;
 5978                                                 }
 5979 #endif
 5980                                         default:
 5981                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5982                                                 error = EINVAL;
 5983                                                 goto out_of_it;
 5984                                         }
 5985                                 }
 5986                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
 5987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5988                                         error = EINVAL;
 5989                                 }
 5990                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 5991                 out_of_it:
 5992                                 SCTP_TCB_UNLOCK(stcb);
 5993                         } else {
 5994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5995                                 error = EINVAL;
 5996                         }
 5997                         break;
 5998                 }
 5999         case SCTP_BINDX_ADD_ADDR:
 6000                 {
 6001                         struct sctp_getaddresses *addrs;
 6002                         struct thread *td;
 6003 
 6004                         td = (struct thread *)p;
 6005                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 6006                             optsize);
 6007 #ifdef INET
 6008                         if (addrs->addr->sa_family == AF_INET) {
 6009                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 6010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6011                                         error = EINVAL;
 6012                                         break;
 6013                                 }
 6014                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 6015                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6016                                         break;
 6017                                 }
 6018                         } else
 6019 #endif
 6020 #ifdef INET6
 6021                         if (addrs->addr->sa_family == AF_INET6) {
 6022                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 6023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6024                                         error = EINVAL;
 6025                                         break;
 6026                                 }
 6027                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 6028                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 6029                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6030                                         break;
 6031                                 }
 6032                         } else
 6033 #endif
 6034                         {
 6035                                 error = EAFNOSUPPORT;
 6036                                 break;
 6037                         }
 6038                         sctp_bindx_add_address(so, inp, addrs->addr,
 6039                             addrs->sget_assoc_id, vrf_id,
 6040                             &error, p);
 6041                         break;
 6042                 }
 6043         case SCTP_BINDX_REM_ADDR:
 6044                 {
 6045                         struct sctp_getaddresses *addrs;
 6046                         struct thread *td;
 6047 
 6048                         td = (struct thread *)p;
 6049 
 6050                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 6051 #ifdef INET
 6052                         if (addrs->addr->sa_family == AF_INET) {
 6053                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 6054                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6055                                         error = EINVAL;
 6056                                         break;
 6057                                 }
 6058                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 6059                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6060                                         break;
 6061                                 }
 6062                         } else
 6063 #endif
 6064 #ifdef INET6
 6065                         if (addrs->addr->sa_family == AF_INET6) {
 6066                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 6067                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6068                                         error = EINVAL;
 6069                                         break;
 6070                                 }
 6071                                 if (td != NULL &&
 6072                                     (error = prison_local_ip6(td->td_ucred,
 6073                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 6074                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 6075                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6076                                         break;
 6077                                 }
 6078                         } else
 6079 #endif
 6080                         {
 6081                                 error = EAFNOSUPPORT;
 6082                                 break;
 6083                         }
 6084                         sctp_bindx_delete_address(inp, addrs->addr,
 6085                             addrs->sget_assoc_id, vrf_id,
 6086                             &error);
 6087                         break;
 6088                 }
 6089         case SCTP_EVENT:
 6090                 {
 6091                         struct sctp_event *event;
 6092                         uint32_t event_type;
 6093 
 6094                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
 6095                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 6096                         switch (event->se_type) {
 6097                         case SCTP_ASSOC_CHANGE:
 6098                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 6099                                 break;
 6100                         case SCTP_PEER_ADDR_CHANGE:
 6101                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 6102                                 break;
 6103                         case SCTP_REMOTE_ERROR:
 6104                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 6105                                 break;
 6106                         case SCTP_SEND_FAILED:
 6107                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 6108                                 break;
 6109                         case SCTP_SHUTDOWN_EVENT:
 6110                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 6111                                 break;
 6112                         case SCTP_ADAPTATION_INDICATION:
 6113                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 6114                                 break;
 6115                         case SCTP_PARTIAL_DELIVERY_EVENT:
 6116                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 6117                                 break;
 6118                         case SCTP_AUTHENTICATION_EVENT:
 6119                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 6120                                 break;
 6121                         case SCTP_STREAM_RESET_EVENT:
 6122                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 6123                                 break;
 6124                         case SCTP_SENDER_DRY_EVENT:
 6125                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 6126                                 break;
 6127                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 6128                                 event_type = 0;
 6129                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 6130                                 error = ENOTSUP;
 6131                                 break;
 6132                         case SCTP_ASSOC_RESET_EVENT:
 6133                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 6134                                 break;
 6135                         case SCTP_STREAM_CHANGE_EVENT:
 6136                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 6137                                 break;
 6138                         case SCTP_SEND_FAILED_EVENT:
 6139                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 6140                                 break;
 6141                         default:
 6142                                 event_type = 0;
 6143                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6144                                 error = EINVAL;
 6145                                 break;
 6146                         }
 6147                         if (event_type > 0) {
 6148                                 if (stcb) {
 6149                                         if (event->se_on) {
 6150                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 6151                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
 6152                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 6153                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 6154                                                             (stcb->asoc.stream_queue_cnt == 0)) {
 6155                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 6156                                                         }
 6157                                                 }
 6158                                         } else {
 6159                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 6160                                         }
 6161                                         SCTP_TCB_UNLOCK(stcb);
 6162                                 } else {
 6163                                         /*
 6164                                          * We don't want to send up a storm
 6165                                          * of events, so return an error for
 6166                                          * sender dry events
 6167                                          */
 6168                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
 6169                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6170                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
 6171                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
 6172                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 6173                                                 error = ENOTSUP;
 6174                                                 break;
 6175                                         }
 6176                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6177                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6178                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6179                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
 6180                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
 6181                                                 SCTP_INP_WLOCK(inp);
 6182                                                 if (event->se_on) {
 6183                                                         sctp_feature_on(inp, event_type);
 6184                                                 } else {
 6185                                                         sctp_feature_off(inp, event_type);
 6186                                                 }
 6187                                                 SCTP_INP_WUNLOCK(inp);
 6188                                         }
 6189                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6190                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
 6191                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
 6192                                                 SCTP_INP_RLOCK(inp);
 6193                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6194                                                         SCTP_TCB_LOCK(stcb);
 6195                                                         if (event->se_on) {
 6196                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 6197                                                         } else {
 6198                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 6199                                                         }
 6200                                                         SCTP_TCB_UNLOCK(stcb);
 6201                                                 }
 6202                                                 SCTP_INP_RUNLOCK(inp);
 6203                                         }
 6204                                 }
 6205                         } else {
 6206                                 if (stcb) {
 6207                                         SCTP_TCB_UNLOCK(stcb);
 6208                                 }
 6209                         }
 6210                         break;
 6211                 }
 6212         case SCTP_RECVRCVINFO:
 6213                 {
 6214                         int *onoff;
 6215 
 6216                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 6217                         SCTP_INP_WLOCK(inp);
 6218                         if (*onoff != 0) {
 6219                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 6220                         } else {
 6221                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 6222                         }
 6223                         SCTP_INP_WUNLOCK(inp);
 6224                         break;
 6225                 }
 6226         case SCTP_RECVNXTINFO:
 6227                 {
 6228                         int *onoff;
 6229 
 6230                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 6231                         SCTP_INP_WLOCK(inp);
 6232                         if (*onoff != 0) {
 6233                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 6234                         } else {
 6235                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 6236                         }
 6237                         SCTP_INP_WUNLOCK(inp);
 6238                         break;
 6239                 }
 6240         case SCTP_DEFAULT_SNDINFO:
 6241                 {
 6242                         struct sctp_sndinfo *info;
 6243                         uint16_t policy;
 6244 
 6245                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
 6246                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 6247 
 6248                         if (stcb) {
 6249                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 6250                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 6251                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 6252                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 6253                                         stcb->asoc.def_send.sinfo_flags |= policy;
 6254                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 6255                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 6256                                 } else {
 6257                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6258                                         error = EINVAL;
 6259                                 }
 6260                                 SCTP_TCB_UNLOCK(stcb);
 6261                         } else {
 6262                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6263                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6264                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6265                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
 6266                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
 6267                                         SCTP_INP_WLOCK(inp);
 6268                                         inp->def_send.sinfo_stream = info->snd_sid;
 6269                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 6270                                         inp->def_send.sinfo_flags = info->snd_flags;
 6271                                         inp->def_send.sinfo_flags |= policy;
 6272                                         inp->def_send.sinfo_ppid = info->snd_ppid;
 6273                                         inp->def_send.sinfo_context = info->snd_context;
 6274                                         SCTP_INP_WUNLOCK(inp);
 6275                                 }
 6276                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6277                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
 6278                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
 6279                                         SCTP_INP_RLOCK(inp);
 6280                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6281                                                 SCTP_TCB_LOCK(stcb);
 6282                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 6283                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 6284                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 6285                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 6286                                                         stcb->asoc.def_send.sinfo_flags |= policy;
 6287                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 6288                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 6289                                                 }
 6290                                                 SCTP_TCB_UNLOCK(stcb);
 6291                                         }
 6292                                         SCTP_INP_RUNLOCK(inp);
 6293                                 }
 6294                         }
 6295                         break;
 6296                 }
 6297         case SCTP_DEFAULT_PRINFO:
 6298                 {
 6299                         struct sctp_default_prinfo *info;
 6300 
 6301                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
 6302                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 6303 
 6304                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
 6305                                 if (stcb) {
 6306                                         SCTP_TCB_UNLOCK(stcb);
 6307                                 }
 6308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6309                                 error = EINVAL;
 6310                                 break;
 6311                         }
 6312                         if (stcb) {
 6313                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 6314                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 6315                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 6316                                 SCTP_TCB_UNLOCK(stcb);
 6317                         } else {
 6318                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6319                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6320                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6321                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
 6322                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
 6323                                         SCTP_INP_WLOCK(inp);
 6324                                         inp->def_send.sinfo_flags &= 0xfff0;
 6325                                         inp->def_send.sinfo_flags |= info->pr_policy;
 6326                                         inp->def_send.sinfo_timetolive = info->pr_value;
 6327                                         SCTP_INP_WUNLOCK(inp);
 6328                                 }
 6329                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6330                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
 6331                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
 6332                                         SCTP_INP_RLOCK(inp);
 6333                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6334                                                 SCTP_TCB_LOCK(stcb);
 6335                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 6336                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 6337                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 6338                                                 SCTP_TCB_UNLOCK(stcb);
 6339                                         }
 6340                                         SCTP_INP_RUNLOCK(inp);
 6341                                 }
 6342                         }
 6343                         break;
 6344                 }
 6345         case SCTP_PEER_ADDR_THLDS:
 6346                 /* Applies to the specific association */
 6347                 {
 6348                         struct sctp_paddrthlds *thlds;
 6349                         struct sctp_nets *net;
 6350                         struct sockaddr *addr;
 6351 #if defined(INET) && defined(INET6)
 6352                         struct sockaddr_in sin_store;
 6353 #endif
 6354 
 6355                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
 6356                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 6357 
 6358 #if defined(INET) && defined(INET6)
 6359                         if (thlds->spt_address.ss_family == AF_INET6) {
 6360                                 struct sockaddr_in6 *sin6;
 6361 
 6362                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
 6363                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 6364                                         in6_sin6_2_sin(&sin_store, sin6);
 6365                                         addr = (struct sockaddr *)&sin_store;
 6366                                 } else {
 6367                                         addr = (struct sockaddr *)&thlds->spt_address;
 6368                                 }
 6369                         } else {
 6370                                 addr = (struct sockaddr *)&thlds->spt_address;
 6371                         }
 6372 #else
 6373                         addr = (struct sockaddr *)&thlds->spt_address;
 6374 #endif
 6375                         if (stcb != NULL) {
 6376                                 net = sctp_findnet(stcb, addr);
 6377                         } else {
 6378                                 /*
 6379                                  * We increment here since
 6380                                  * sctp_findassociation_ep_addr() wil do a
 6381                                  * decrement if it finds the stcb as long as
 6382                                  * the locked tcb (last argument) is NOT a
 6383                                  * TCB.. aka NULL.
 6384                                  */
 6385                                 net = NULL;
 6386                                 SCTP_INP_INCR_REF(inp);
 6387                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 6388                                     &net, NULL, NULL);
 6389                                 if (stcb == NULL) {
 6390                                         SCTP_INP_DECR_REF(inp);
 6391                                 }
 6392                         }
 6393                         if ((stcb != NULL) && (net == NULL)) {
 6394 #ifdef INET
 6395                                 if (addr->sa_family == AF_INET) {
 6396 
 6397                                         struct sockaddr_in *sin;
 6398 
 6399                                         sin = (struct sockaddr_in *)addr;
 6400                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 6401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6402                                                 SCTP_TCB_UNLOCK(stcb);
 6403                                                 error = EINVAL;
 6404                                                 break;
 6405                                         }
 6406                                 } else
 6407 #endif
 6408 #ifdef INET6
 6409                                 if (addr->sa_family == AF_INET6) {
 6410                                         struct sockaddr_in6 *sin6;
 6411 
 6412                                         sin6 = (struct sockaddr_in6 *)addr;
 6413                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 6414                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6415                                                 SCTP_TCB_UNLOCK(stcb);
 6416                                                 error = EINVAL;
 6417                                                 break;
 6418                                         }
 6419                                 } else
 6420 #endif
 6421                                 {
 6422                                         error = EAFNOSUPPORT;
 6423                                         SCTP_TCB_UNLOCK(stcb);
 6424                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6425                                         break;
 6426                                 }
 6427                         }
 6428                         if (thlds->spt_pathcpthld != 0xffff) {
 6429                                 if (stcb != NULL) {
 6430                                         SCTP_TCB_UNLOCK(stcb);
 6431                                 }
 6432                                 error = EINVAL;
 6433                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6434                                 break;
 6435                         }
 6436                         if (stcb != NULL) {
 6437                                 if (net != NULL) {
 6438                                         net->failure_threshold = thlds->spt_pathmaxrxt;
 6439                                         net->pf_threshold = thlds->spt_pathpfthld;
 6440                                         if (net->dest_state & SCTP_ADDR_PF) {
 6441                                                 if ((net->error_count > net->failure_threshold) ||
 6442                                                     (net->error_count <= net->pf_threshold)) {
 6443                                                         net->dest_state &= ~SCTP_ADDR_PF;
 6444                                                 }
 6445                                         } else {
 6446                                                 if ((net->error_count > net->pf_threshold) &&
 6447                                                     (net->error_count <= net->failure_threshold)) {
 6448                                                         net->dest_state |= SCTP_ADDR_PF;
 6449                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 6450                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 6451                                                             stcb->sctp_ep, stcb, net,
 6452                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
 6453                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 6454                                                 }
 6455                                         }
 6456                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 6457                                                 if (net->error_count > net->failure_threshold) {
 6458                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 6459                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 6460                                                 }
 6461                                         } else {
 6462                                                 if (net->error_count <= net->failure_threshold) {
 6463                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 6464                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 6465                                                 }
 6466                                         }
 6467                                 } else {
 6468                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6469                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
 6470                                                 net->pf_threshold = thlds->spt_pathpfthld;
 6471                                                 if (net->dest_state & SCTP_ADDR_PF) {
 6472                                                         if ((net->error_count > net->failure_threshold) ||
 6473                                                             (net->error_count <= net->pf_threshold)) {
 6474                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 6475                                                         }
 6476                                                 } else {
 6477                                                         if ((net->error_count > net->pf_threshold) &&
 6478                                                             (net->error_count <= net->failure_threshold)) {
 6479                                                                 net->dest_state |= SCTP_ADDR_PF;
 6480                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 6481                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 6482                                                                     stcb->sctp_ep, stcb, net,
 6483                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
 6484                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 6485                                                         }
 6486                                                 }
 6487                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 6488                                                         if (net->error_count > net->failure_threshold) {
 6489                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 6490                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 6491                                                         }
 6492                                                 } else {
 6493                                                         if (net->error_count <= net->failure_threshold) {
 6494                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 6495                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 6496                                                         }
 6497                                                 }
 6498                                         }
 6499                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
 6500                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
 6501                                 }
 6502                                 SCTP_TCB_UNLOCK(stcb);
 6503                         } else {
 6504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6506                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6507                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
 6508                                         SCTP_INP_WLOCK(inp);
 6509                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
 6510                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
 6511                                         SCTP_INP_WUNLOCK(inp);
 6512                                 } else {
 6513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6514                                         error = EINVAL;
 6515                                 }
 6516                         }
 6517                         break;
 6518                 }
 6519         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 6520                 {
 6521                         struct sctp_udpencaps *encaps;
 6522                         struct sctp_nets *net;
 6523                         struct sockaddr *addr;
 6524 #if defined(INET) && defined(INET6)
 6525                         struct sockaddr_in sin_store;
 6526 #endif
 6527 
 6528                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
 6529                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 6530 
 6531 #if defined(INET) && defined(INET6)
 6532                         if (encaps->sue_address.ss_family == AF_INET6) {
 6533                                 struct sockaddr_in6 *sin6;
 6534 
 6535                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
 6536                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 6537                                         in6_sin6_2_sin(&sin_store, sin6);
 6538                                         addr = (struct sockaddr *)&sin_store;
 6539                                 } else {
 6540                                         addr = (struct sockaddr *)&encaps->sue_address;
 6541                                 }
 6542                         } else {
 6543                                 addr = (struct sockaddr *)&encaps->sue_address;
 6544                         }
 6545 #else
 6546                         addr = (struct sockaddr *)&encaps->sue_address;
 6547 #endif
 6548                         if (stcb != NULL) {
 6549                                 net = sctp_findnet(stcb, addr);
 6550                         } else {
 6551                                 /*
 6552                                  * We increment here since
 6553                                  * sctp_findassociation_ep_addr() wil do a
 6554                                  * decrement if it finds the stcb as long as
 6555                                  * the locked tcb (last argument) is NOT a
 6556                                  * TCB.. aka NULL.
 6557                                  */
 6558                                 net = NULL;
 6559                                 SCTP_INP_INCR_REF(inp);
 6560                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 6561                                 if (stcb == NULL) {
 6562                                         SCTP_INP_DECR_REF(inp);
 6563                                 }
 6564                         }
 6565                         if ((stcb != NULL) && (net == NULL)) {
 6566 #ifdef INET
 6567                                 if (addr->sa_family == AF_INET) {
 6568 
 6569                                         struct sockaddr_in *sin;
 6570 
 6571                                         sin = (struct sockaddr_in *)addr;
 6572                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 6573                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6574                                                 SCTP_TCB_UNLOCK(stcb);
 6575                                                 error = EINVAL;
 6576                                                 break;
 6577                                         }
 6578                                 } else
 6579 #endif
 6580 #ifdef INET6
 6581                                 if (addr->sa_family == AF_INET6) {
 6582                                         struct sockaddr_in6 *sin6;
 6583 
 6584                                         sin6 = (struct sockaddr_in6 *)addr;
 6585                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 6586                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6587                                                 SCTP_TCB_UNLOCK(stcb);
 6588                                                 error = EINVAL;
 6589                                                 break;
 6590                                         }
 6591                                 } else
 6592 #endif
 6593                                 {
 6594                                         error = EAFNOSUPPORT;
 6595                                         SCTP_TCB_UNLOCK(stcb);
 6596                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6597                                         break;
 6598                                 }
 6599                         }
 6600 
 6601                         if (stcb != NULL) {
 6602                                 if (net != NULL) {
 6603                                         net->port = encaps->sue_port;
 6604                                 } else {
 6605                                         stcb->asoc.port = encaps->sue_port;
 6606                                 }
 6607                                 SCTP_TCB_UNLOCK(stcb);
 6608                         } else {
 6609                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6610                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6611                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6612                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
 6613                                         SCTP_INP_WLOCK(inp);
 6614                                         inp->sctp_ep.port = encaps->sue_port;
 6615                                         SCTP_INP_WUNLOCK(inp);
 6616                                 } else {
 6617                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6618                                         error = EINVAL;
 6619                                 }
 6620                         }
 6621                         break;
 6622                 }
 6623         case SCTP_ECN_SUPPORTED:
 6624                 {
 6625                         struct sctp_assoc_value *av;
 6626 
 6627                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6628                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6629 
 6630                         if (stcb) {
 6631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6632                                 error = EINVAL;
 6633                                 SCTP_TCB_UNLOCK(stcb);
 6634                         } else {
 6635                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6636                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6637                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6638                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6639                                         SCTP_INP_WLOCK(inp);
 6640                                         if (av->assoc_value == 0) {
 6641                                                 inp->ecn_supported = 0;
 6642                                         } else {
 6643                                                 inp->ecn_supported = 1;
 6644                                         }
 6645                                         SCTP_INP_WUNLOCK(inp);
 6646                                 } else {
 6647                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6648                                         error = EINVAL;
 6649                                 }
 6650                         }
 6651                         break;
 6652                 }
 6653         case SCTP_PR_SUPPORTED:
 6654                 {
 6655                         struct sctp_assoc_value *av;
 6656 
 6657                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6658                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6659 
 6660                         if (stcb) {
 6661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6662                                 error = EINVAL;
 6663                                 SCTP_TCB_UNLOCK(stcb);
 6664                         } else {
 6665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6667                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6668                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6669                                         SCTP_INP_WLOCK(inp);
 6670                                         if (av->assoc_value == 0) {
 6671                                                 inp->prsctp_supported = 0;
 6672                                         } else {
 6673                                                 inp->prsctp_supported = 1;
 6674                                         }
 6675                                         SCTP_INP_WUNLOCK(inp);
 6676                                 } else {
 6677                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6678                                         error = EINVAL;
 6679                                 }
 6680                         }
 6681                         break;
 6682                 }
 6683         case SCTP_AUTH_SUPPORTED:
 6684                 {
 6685                         struct sctp_assoc_value *av;
 6686 
 6687                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6688                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6689 
 6690                         if (stcb) {
 6691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6692                                 error = EINVAL;
 6693                                 SCTP_TCB_UNLOCK(stcb);
 6694                         } else {
 6695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6696                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6697                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6698                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6699                                         if ((av->assoc_value == 0) &&
 6700                                             (inp->asconf_supported == 1)) {
 6701                                                 /*
 6702                                                  * AUTH is required for
 6703                                                  * ASCONF
 6704                                                  */
 6705                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6706                                                 error = EINVAL;
 6707                                         } else {
 6708                                                 SCTP_INP_WLOCK(inp);
 6709                                                 if (av->assoc_value == 0) {
 6710                                                         inp->auth_supported = 0;
 6711                                                 } else {
 6712                                                         inp->auth_supported = 1;
 6713                                                 }
 6714                                                 SCTP_INP_WUNLOCK(inp);
 6715                                         }
 6716                                 } else {
 6717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6718                                         error = EINVAL;
 6719                                 }
 6720                         }
 6721                         break;
 6722                 }
 6723         case SCTP_ASCONF_SUPPORTED:
 6724                 {
 6725                         struct sctp_assoc_value *av;
 6726 
 6727                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6728                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6729 
 6730                         if (stcb) {
 6731                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6732                                 error = EINVAL;
 6733                                 SCTP_TCB_UNLOCK(stcb);
 6734                         } else {
 6735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6737                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6738                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6739                                         if ((av->assoc_value != 0) &&
 6740                                             (inp->auth_supported == 0)) {
 6741                                                 /*
 6742                                                  * AUTH is required for
 6743                                                  * ASCONF
 6744                                                  */
 6745                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6746                                                 error = EINVAL;
 6747                                         } else {
 6748                                                 SCTP_INP_WLOCK(inp);
 6749                                                 if (av->assoc_value == 0) {
 6750                                                         inp->asconf_supported = 0;
 6751                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
 6752                                                             inp->sctp_ep.local_auth_chunks);
 6753                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
 6754                                                             inp->sctp_ep.local_auth_chunks);
 6755                                                 } else {
 6756                                                         inp->asconf_supported = 1;
 6757                                                         sctp_auth_add_chunk(SCTP_ASCONF,
 6758                                                             inp->sctp_ep.local_auth_chunks);
 6759                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
 6760                                                             inp->sctp_ep.local_auth_chunks);
 6761                                                 }
 6762                                                 SCTP_INP_WUNLOCK(inp);
 6763                                         }
 6764                                 } else {
 6765                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6766                                         error = EINVAL;
 6767                                 }
 6768                         }
 6769                         break;
 6770                 }
 6771         case SCTP_RECONFIG_SUPPORTED:
 6772                 {
 6773                         struct sctp_assoc_value *av;
 6774 
 6775                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6776                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6777 
 6778                         if (stcb) {
 6779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6780                                 error = EINVAL;
 6781                                 SCTP_TCB_UNLOCK(stcb);
 6782                         } else {
 6783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6785                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6786                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6787                                         SCTP_INP_WLOCK(inp);
 6788                                         if (av->assoc_value == 0) {
 6789                                                 inp->reconfig_supported = 0;
 6790                                         } else {
 6791                                                 inp->reconfig_supported = 1;
 6792                                         }
 6793                                         SCTP_INP_WUNLOCK(inp);
 6794                                 } else {
 6795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6796                                         error = EINVAL;
 6797                                 }
 6798                         }
 6799                         break;
 6800                 }
 6801         case SCTP_NRSACK_SUPPORTED:
 6802                 {
 6803                         struct sctp_assoc_value *av;
 6804 
 6805                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6806                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6807 
 6808                         if (stcb) {
 6809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6810                                 error = EINVAL;
 6811                                 SCTP_TCB_UNLOCK(stcb);
 6812                         } else {
 6813                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6814                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6815                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6816                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6817                                         SCTP_INP_WLOCK(inp);
 6818                                         if (av->assoc_value == 0) {
 6819                                                 inp->nrsack_supported = 0;
 6820                                         } else {
 6821                                                 inp->nrsack_supported = 1;
 6822                                         }
 6823                                         SCTP_INP_WUNLOCK(inp);
 6824                                 } else {
 6825                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6826                                         error = EINVAL;
 6827                                 }
 6828                         }
 6829                         break;
 6830                 }
 6831         case SCTP_PKTDROP_SUPPORTED:
 6832                 {
 6833                         struct sctp_assoc_value *av;
 6834 
 6835                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6836                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6837 
 6838                         if (stcb) {
 6839                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6840                                 error = EINVAL;
 6841                                 SCTP_TCB_UNLOCK(stcb);
 6842                         } else {
 6843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6845                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6846                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6847                                         SCTP_INP_WLOCK(inp);
 6848                                         if (av->assoc_value == 0) {
 6849                                                 inp->pktdrop_supported = 0;
 6850                                         } else {
 6851                                                 inp->pktdrop_supported = 1;
 6852                                         }
 6853                                         SCTP_INP_WUNLOCK(inp);
 6854                                 } else {
 6855                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6856                                         error = EINVAL;
 6857                                 }
 6858                         }
 6859                         break;
 6860                 }
 6861         case SCTP_MAX_CWND:
 6862                 {
 6863                         struct sctp_assoc_value *av;
 6864                         struct sctp_nets *net;
 6865 
 6866                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6867                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6868 
 6869                         if (stcb) {
 6870                                 stcb->asoc.max_cwnd = av->assoc_value;
 6871                                 if (stcb->asoc.max_cwnd > 0) {
 6872                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6873                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
 6874                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
 6875                                                         net->cwnd = stcb->asoc.max_cwnd;
 6876                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
 6877                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
 6878                                                         }
 6879                                                 }
 6880                                         }
 6881                                 }
 6882                                 SCTP_TCB_UNLOCK(stcb);
 6883                         } else {
 6884                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6885                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6886                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
 6887                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
 6888                                         SCTP_INP_WLOCK(inp);
 6889                                         inp->max_cwnd = av->assoc_value;
 6890                                         SCTP_INP_WUNLOCK(inp);
 6891                                 } else {
 6892                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6893                                         error = EINVAL;
 6894                                 }
 6895                         }
 6896                         break;
 6897                 }
 6898         default:
 6899                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 6900                 error = ENOPROTOOPT;
 6901                 break;
 6902         }                       /* end switch (opt) */
 6903         return (error);
 6904 }
 6905 
 6906 int
 6907 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 6908 {
 6909         void *optval = NULL;
 6910         size_t optsize = 0;
 6911         void *p;
 6912         int error = 0;
 6913         struct sctp_inpcb *inp;
 6914 
 6915         if ((sopt->sopt_level == SOL_SOCKET) &&
 6916             (sopt->sopt_name == SO_SETFIB)) {
 6917                 inp = (struct sctp_inpcb *)so->so_pcb;
 6918                 if (inp == NULL) {
 6919                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 6920                         return (EINVAL);
 6921                 }
 6922                 SCTP_INP_WLOCK(inp);
 6923                 inp->fibnum = so->so_fibnum;
 6924                 SCTP_INP_WUNLOCK(inp);
 6925                 return (0);
 6926         }
 6927         if (sopt->sopt_level != IPPROTO_SCTP) {
 6928                 /* wrong proto level... send back up to IP */
 6929 #ifdef INET6
 6930                 if (INP_CHECK_SOCKAF(so, AF_INET6))
 6931                         error = ip6_ctloutput(so, sopt);
 6932 #endif                          /* INET6 */
 6933 #if defined(INET) && defined(INET6)
 6934                 else
 6935 #endif
 6936 #ifdef INET
 6937                         error = ip_ctloutput(so, sopt);
 6938 #endif
 6939                 return (error);
 6940         }
 6941         optsize = sopt->sopt_valsize;
 6942         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
 6943                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 6944                 return (ENOBUFS);
 6945         }
 6946         if (optsize) {
 6947                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
 6948                 if (optval == NULL) {
 6949                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 6950                         return (ENOBUFS);
 6951                 }
 6952                 error = sooptcopyin(sopt, optval, optsize, optsize);
 6953                 if (error) {
 6954                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6955                         goto out;
 6956                 }
 6957         }
 6958         p = (void *)sopt->sopt_td;
 6959         if (sopt->sopt_dir == SOPT_SET) {
 6960                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 6961         } else if (sopt->sopt_dir == SOPT_GET) {
 6962                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 6963         } else {
 6964                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6965                 error = EINVAL;
 6966         }
 6967         if ((error == 0) && (optval != NULL)) {
 6968                 error = sooptcopyout(sopt, optval, optsize);
 6969                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6970         } else if (optval != NULL) {
 6971                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6972         }
 6973 out:
 6974         return (error);
 6975 }
 6976 
 6977 #ifdef INET
 6978 static int
 6979 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 6980 {
 6981         int error = 0;
 6982         int create_lock_on = 0;
 6983         uint32_t vrf_id;
 6984         struct sctp_inpcb *inp;
 6985         struct sctp_tcb *stcb = NULL;
 6986 
 6987         inp = (struct sctp_inpcb *)so->so_pcb;
 6988         if (inp == NULL) {
 6989                 /* I made the same as TCP since we are not setup? */
 6990                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6991                 return (ECONNRESET);
 6992         }
 6993         if (addr == NULL) {
 6994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6995                 return EINVAL;
 6996         }
 6997 
 6998         switch (addr->sa_family) {
 6999 #ifdef INET6
 7000         case AF_INET6:
 7001                 {
 7002                         struct sockaddr_in6 *sin6p;
 7003 
 7004                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
 7005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7006                                 return (EINVAL);
 7007                         }
 7008                         sin6p = (struct sockaddr_in6 *)addr;
 7009                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
 7010                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 7011                                 return (error);
 7012                         }
 7013                         break;
 7014                 }
 7015 #endif
 7016 #ifdef INET
 7017         case AF_INET:
 7018                 {
 7019                         struct sockaddr_in *sinp;
 7020 
 7021                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
 7022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7023                                 return (EINVAL);
 7024                         }
 7025                         sinp = (struct sockaddr_in *)addr;
 7026                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
 7027                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 7028                                 return (error);
 7029                         }
 7030                         break;
 7031                 }
 7032 #endif
 7033         default:
 7034                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 7035                 return (EAFNOSUPPORT);
 7036         }
 7037         SCTP_INP_INCR_REF(inp);
 7038         SCTP_ASOC_CREATE_LOCK(inp);
 7039         create_lock_on = 1;
 7040 
 7041 
 7042         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 7043             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 7044                 /* Should I really unlock ? */
 7045                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 7046                 error = EFAULT;
 7047                 goto out_now;
 7048         }
 7049 #ifdef INET6
 7050         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 7051             (addr->sa_family == AF_INET6)) {
 7052                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7053                 error = EINVAL;
 7054                 goto out_now;
 7055         }
 7056 #endif
 7057         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 7058             SCTP_PCB_FLAGS_UNBOUND) {
 7059                 /* Bind a ephemeral port */
 7060                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 7061                 if (error) {
 7062                         goto out_now;
 7063                 }
 7064         }
 7065         /* Now do we connect? */
 7066         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 7067             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 7068                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7069                 error = EINVAL;
 7070                 goto out_now;
 7071         }
 7072         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 7073             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 7074                 /* We are already connected AND the TCP model */
 7075                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 7076                 error = EADDRINUSE;
 7077                 goto out_now;
 7078         }
 7079         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 7080                 SCTP_INP_RLOCK(inp);
 7081                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7082                 SCTP_INP_RUNLOCK(inp);
 7083         } else {
 7084                 /*
 7085                  * We increment here since sctp_findassociation_ep_addr()
 7086                  * will do a decrement if it finds the stcb as long as the
 7087                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
 7088                  */
 7089                 SCTP_INP_INCR_REF(inp);
 7090                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
 7091                 if (stcb == NULL) {
 7092                         SCTP_INP_DECR_REF(inp);
 7093                 } else {
 7094                         SCTP_TCB_UNLOCK(stcb);
 7095                 }
 7096         }
 7097         if (stcb != NULL) {
 7098                 /* Already have or am bring up an association */
 7099                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 7100                 error = EALREADY;
 7101                 goto out_now;
 7102         }
 7103 
 7104         vrf_id = inp->def_vrf_id;
 7105         /* We are GOOD to go */
 7106         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
 7107             inp->sctp_ep.pre_open_stream_count,
 7108             inp->sctp_ep.port, p,
 7109             SCTP_INITIALIZE_AUTH_PARAMS);
 7110         if (stcb == NULL) {
 7111                 /* Gak! no memory */
 7112                 goto out_now;
 7113         }
 7114         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 7115                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 7116                 /* Set the connected flag so we can queue data */
 7117                 soisconnecting(so);
 7118         }
 7119         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
 7120         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 7121 
 7122         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 7123         SCTP_TCB_UNLOCK(stcb);
 7124 out_now:
 7125         if (create_lock_on) {
 7126                 SCTP_ASOC_CREATE_UNLOCK(inp);
 7127         }
 7128 
 7129         SCTP_INP_DECR_REF(inp);
 7130         return (error);
 7131 }
 7132 #endif
 7133 
 7134 int
 7135 sctp_listen(struct socket *so, int backlog, struct thread *p)
 7136 {
 7137         /*
 7138          * Note this module depends on the protocol processing being called
 7139          * AFTER any socket level flags and backlog are applied to the
 7140          * socket. The traditional way that the socket flags are applied is
 7141          * AFTER protocol processing. We have made a change to the
 7142          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
 7143          * place if the socket API for SCTP is to work properly.
 7144          */
 7145 
 7146         int error = 0;
 7147         struct sctp_inpcb *inp;
 7148 
 7149         inp = (struct sctp_inpcb *)so->so_pcb;
 7150         if (inp == NULL) {
 7151                 /* I made the same as TCP since we are not setup? */
 7152                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7153                 return (ECONNRESET);
 7154         }
 7155         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
 7156                 /* See if we have a listener */
 7157                 struct sctp_inpcb *tinp;
 7158                 union sctp_sockstore store;
 7159 
 7160                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 7161                         /* not bound all */
 7162                         struct sctp_laddr *laddr;
 7163 
 7164                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 7165                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
 7166                                 switch (store.sa.sa_family) {
 7167 #ifdef INET
 7168                                 case AF_INET:
 7169                                         store.sin.sin_port = inp->sctp_lport;
 7170                                         break;
 7171 #endif
 7172 #ifdef INET6
 7173                                 case AF_INET6:
 7174                                         store.sin6.sin6_port = inp->sctp_lport;
 7175                                         break;
 7176 #endif
 7177                                 default:
 7178                                         break;
 7179                                 }
 7180                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
 7181                                 if (tinp && (tinp != inp) &&
 7182                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 7183                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 7184                                     (tinp->sctp_socket->so_qlimit)) {
 7185                                         /*
 7186                                          * we have a listener already and
 7187                                          * its not this inp.
 7188                                          */
 7189                                         SCTP_INP_DECR_REF(tinp);
 7190                                         return (EADDRINUSE);
 7191                                 } else if (tinp) {
 7192                                         SCTP_INP_DECR_REF(tinp);
 7193                                 }
 7194                         }
 7195                 } else {
 7196                         /* Setup a local addr bound all */
 7197                         memset(&store, 0, sizeof(store));
 7198 #ifdef INET6
 7199                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 7200                                 store.sa.sa_family = AF_INET6;
 7201                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
 7202                         }
 7203 #endif
 7204 #ifdef INET
 7205                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 7206                                 store.sa.sa_family = AF_INET;
 7207                                 store.sa.sa_len = sizeof(struct sockaddr_in);
 7208                         }
 7209 #endif
 7210                         switch (store.sa.sa_family) {
 7211 #ifdef INET
 7212                         case AF_INET:
 7213                                 store.sin.sin_port = inp->sctp_lport;
 7214                                 break;
 7215 #endif
 7216 #ifdef INET6
 7217                         case AF_INET6:
 7218                                 store.sin6.sin6_port = inp->sctp_lport;
 7219                                 break;
 7220 #endif
 7221                         default:
 7222                                 break;
 7223                         }
 7224                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
 7225                         if (tinp && (tinp != inp) &&
 7226                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 7227                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 7228                             (tinp->sctp_socket->so_qlimit)) {
 7229                                 /*
 7230                                  * we have a listener already and its not
 7231                                  * this inp.
 7232                                  */
 7233                                 SCTP_INP_DECR_REF(tinp);
 7234                                 return (EADDRINUSE);
 7235                         } else if (tinp) {
 7236                                 SCTP_INP_DECR_REF(tinp);
 7237                         }
 7238                 }
 7239         }
 7240         SCTP_INP_RLOCK(inp);
 7241 #ifdef SCTP_LOCK_LOGGING
 7242         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
 7243                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
 7244         }
 7245 #endif
 7246         SOCK_LOCK(so);
 7247         error = solisten_proto_check(so);
 7248         SOCK_UNLOCK(so);
 7249         if (error) {
 7250                 SCTP_INP_RUNLOCK(inp);
 7251                 return (error);
 7252         }
 7253         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
 7254             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 7255                 /*
 7256                  * The unlucky case - We are in the tcp pool with this guy.
 7257                  * - Someone else is in the main inp slot. - We must move
 7258                  * this guy (the listener) to the main slot - We must then
 7259                  * move the guy that was listener to the TCP Pool.
 7260                  */
 7261                 if (sctp_swap_inpcb_for_listen(inp)) {
 7262                         SCTP_INP_RUNLOCK(inp);
 7263                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 7264                         return (EADDRINUSE);
 7265                 }
 7266         }
 7267 
 7268         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 7269             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 7270                 /* We are already connected AND the TCP model */
 7271                 SCTP_INP_RUNLOCK(inp);
 7272                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 7273                 return (EADDRINUSE);
 7274         }
 7275         SCTP_INP_RUNLOCK(inp);
 7276         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 7277                 /* We must do a bind. */
 7278                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 7279                         /* bind error, probably perm */
 7280                         return (error);
 7281                 }
 7282         }
 7283         SOCK_LOCK(so);
 7284         /* It appears for 7.0 and on, we must always call this. */
 7285         solisten_proto(so, backlog);
 7286         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 7287                 /* remove the ACCEPTCONN flag for one-to-many sockets */
 7288                 so->so_options &= ~SO_ACCEPTCONN;
 7289         }
 7290         if (backlog == 0) {
 7291                 /* turning off listen */
 7292                 so->so_options &= ~SO_ACCEPTCONN;
 7293         }
 7294         SOCK_UNLOCK(so);
 7295         return (error);
 7296 }
 7297 
 7298 static int sctp_defered_wakeup_cnt = 0;
 7299 
 7300 int
 7301 sctp_accept(struct socket *so, struct sockaddr **addr)
 7302 {
 7303         struct sctp_tcb *stcb;
 7304         struct sctp_inpcb *inp;
 7305         union sctp_sockstore store;
 7306 #ifdef INET6
 7307         int error;
 7308 #endif
 7309         inp = (struct sctp_inpcb *)so->so_pcb;
 7310 
 7311         if (inp == NULL) {
 7312                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7313                 return (ECONNRESET);
 7314         }
 7315         SCTP_INP_WLOCK(inp);
 7316         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 7317                 SCTP_INP_WUNLOCK(inp);
 7318                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 7319                 return (EOPNOTSUPP);
 7320         }
 7321         if (so->so_state & SS_ISDISCONNECTED) {
 7322                 SCTP_INP_WUNLOCK(inp);
 7323                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
 7324                 return (ECONNABORTED);
 7325         }
 7326         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7327         if (stcb == NULL) {
 7328                 SCTP_INP_WUNLOCK(inp);
 7329                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7330                 return (ECONNRESET);
 7331         }
 7332         SCTP_TCB_LOCK(stcb);
 7333         store = stcb->asoc.primary_destination->ro._l_addr;
 7334         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
 7335         /* Wake any delayed sleep action */
 7336         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 7337                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 7338                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 7339                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 7340                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
 7341                         if (sowriteable(inp->sctp_socket)) {
 7342                                 sowwakeup_locked(inp->sctp_socket);
 7343                         } else {
 7344                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
 7345                         }
 7346                 }
 7347                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 7348                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 7349                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
 7350                         if (soreadable(inp->sctp_socket)) {
 7351                                 sctp_defered_wakeup_cnt++;
 7352                                 sorwakeup_locked(inp->sctp_socket);
 7353                         } else {
 7354                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
 7355                         }
 7356                 }
 7357         }
 7358         SCTP_INP_WUNLOCK(inp);
 7359         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 7360                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 7361                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
 7362         } else {
 7363                 SCTP_TCB_UNLOCK(stcb);
 7364         }
 7365         switch (store.sa.sa_family) {
 7366 #ifdef INET
 7367         case AF_INET:
 7368                 {
 7369                         struct sockaddr_in *sin;
 7370 
 7371                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7372                         if (sin == NULL)
 7373                                 return (ENOMEM);
 7374                         sin->sin_family = AF_INET;
 7375                         sin->sin_len = sizeof(*sin);
 7376                         sin->sin_port = store.sin.sin_port;
 7377                         sin->sin_addr = store.sin.sin_addr;
 7378                         *addr = (struct sockaddr *)sin;
 7379                         break;
 7380                 }
 7381 #endif
 7382 #ifdef INET6
 7383         case AF_INET6:
 7384                 {
 7385                         struct sockaddr_in6 *sin6;
 7386 
 7387                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 7388                         if (sin6 == NULL)
 7389                                 return (ENOMEM);
 7390                         sin6->sin6_family = AF_INET6;
 7391                         sin6->sin6_len = sizeof(*sin6);
 7392                         sin6->sin6_port = store.sin6.sin6_port;
 7393                         sin6->sin6_addr = store.sin6.sin6_addr;
 7394                         if ((error = sa6_recoverscope(sin6)) != 0) {
 7395                                 SCTP_FREE_SONAME(sin6);
 7396                                 return (error);
 7397                         }
 7398                         *addr = (struct sockaddr *)sin6;
 7399                         break;
 7400                 }
 7401 #endif
 7402         default:
 7403                 /* TSNH */
 7404                 break;
 7405         }
 7406         return (0);
 7407 }
 7408 
 7409 #ifdef INET
 7410 int
 7411 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 7412 {
 7413         struct sockaddr_in *sin;
 7414         uint32_t vrf_id;
 7415         struct sctp_inpcb *inp;
 7416         struct sctp_ifa *sctp_ifa;
 7417 
 7418         /*
 7419          * Do the malloc first in case it blocks.
 7420          */
 7421         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7422         if (sin == NULL)
 7423                 return (ENOMEM);
 7424         sin->sin_family = AF_INET;
 7425         sin->sin_len = sizeof(*sin);
 7426         inp = (struct sctp_inpcb *)so->so_pcb;
 7427         if (!inp) {
 7428                 SCTP_FREE_SONAME(sin);
 7429                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7430                 return (ECONNRESET);
 7431         }
 7432         SCTP_INP_RLOCK(inp);
 7433         sin->sin_port = inp->sctp_lport;
 7434         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 7435                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 7436                         struct sctp_tcb *stcb;
 7437                         struct sockaddr_in *sin_a;
 7438                         struct sctp_nets *net;
 7439                         int fnd;
 7440 
 7441                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7442                         if (stcb == NULL) {
 7443                                 goto notConn;
 7444                         }
 7445                         fnd = 0;
 7446                         sin_a = NULL;
 7447                         SCTP_TCB_LOCK(stcb);
 7448                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 7449                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 7450                                 if (sin_a == NULL)
 7451                                         /* this will make coverity happy */
 7452                                         continue;
 7453 
 7454                                 if (sin_a->sin_family == AF_INET) {
 7455                                         fnd = 1;
 7456                                         break;
 7457                                 }
 7458                         }
 7459                         if ((!fnd) || (sin_a == NULL)) {
 7460                                 /* punt */
 7461                                 SCTP_TCB_UNLOCK(stcb);
 7462                                 goto notConn;
 7463                         }
 7464 
 7465                         vrf_id = inp->def_vrf_id;
 7466                         sctp_ifa = sctp_source_address_selection(inp,
 7467                             stcb,
 7468                             (sctp_route_t *)&net->ro,
 7469                             net, 0, vrf_id);
 7470                         if (sctp_ifa) {
 7471                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
 7472                                 sctp_free_ifa(sctp_ifa);
 7473                         }
 7474                         SCTP_TCB_UNLOCK(stcb);
 7475                 } else {
 7476                         /* For the bound all case you get back 0 */
 7477         notConn:
 7478                         sin->sin_addr.s_addr = 0;
 7479                 }
 7480 
 7481         } else {
 7482                 /* Take the first IPv4 address in the list */
 7483                 struct sctp_laddr *laddr;
 7484                 int fnd = 0;
 7485 
 7486                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 7487                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 7488                                 struct sockaddr_in *sin_a;
 7489 
 7490                                 sin_a = &laddr->ifa->address.sin;
 7491                                 sin->sin_addr = sin_a->sin_addr;
 7492                                 fnd = 1;
 7493                                 break;
 7494                         }
 7495                 }
 7496                 if (!fnd) {
 7497                         SCTP_FREE_SONAME(sin);
 7498                         SCTP_INP_RUNLOCK(inp);
 7499                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 7500                         return (ENOENT);
 7501                 }
 7502         }
 7503         SCTP_INP_RUNLOCK(inp);
 7504         (*addr) = (struct sockaddr *)sin;
 7505         return (0);
 7506 }
 7507 
 7508 int
 7509 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 7510 {
 7511         struct sockaddr_in *sin;
 7512         int fnd;
 7513         struct sockaddr_in *sin_a;
 7514         struct sctp_inpcb *inp;
 7515         struct sctp_tcb *stcb;
 7516         struct sctp_nets *net;
 7517 
 7518         /* Do the malloc first in case it blocks. */
 7519         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7520         if (sin == NULL)
 7521                 return (ENOMEM);
 7522         sin->sin_family = AF_INET;
 7523         sin->sin_len = sizeof(*sin);
 7524 
 7525         inp = (struct sctp_inpcb *)so->so_pcb;
 7526         if ((inp == NULL) ||
 7527             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
 7528                 /* UDP type and listeners will drop out here */
 7529                 SCTP_FREE_SONAME(sin);
 7530                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 7531                 return (ENOTCONN);
 7532         }
 7533         SCTP_INP_RLOCK(inp);
 7534         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7535         if (stcb) {
 7536                 SCTP_TCB_LOCK(stcb);
 7537         }
 7538         SCTP_INP_RUNLOCK(inp);
 7539         if (stcb == NULL) {
 7540                 SCTP_FREE_SONAME(sin);
 7541                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7542                 return (ECONNRESET);
 7543         }
 7544         fnd = 0;
 7545         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 7546                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 7547                 if (sin_a->sin_family == AF_INET) {
 7548                         fnd = 1;
 7549                         sin->sin_port = stcb->rport;
 7550                         sin->sin_addr = sin_a->sin_addr;
 7551                         break;
 7552                 }
 7553         }
 7554         SCTP_TCB_UNLOCK(stcb);
 7555         if (!fnd) {
 7556                 /* No IPv4 address */
 7557                 SCTP_FREE_SONAME(sin);
 7558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 7559                 return (ENOENT);
 7560         }
 7561         (*addr) = (struct sockaddr *)sin;
 7562         return (0);
 7563 }
 7564 
 7565 struct pr_usrreqs sctp_usrreqs = {
 7566         .pru_abort = sctp_abort,
 7567         .pru_accept = sctp_accept,
 7568         .pru_attach = sctp_attach,
 7569         .pru_bind = sctp_bind,
 7570         .pru_connect = sctp_connect,
 7571         .pru_control = in_control,
 7572         .pru_close = sctp_close,
 7573         .pru_detach = sctp_close,
 7574         .pru_sopoll = sopoll_generic,
 7575         .pru_flush = sctp_flush,
 7576         .pru_disconnect = sctp_disconnect,
 7577         .pru_listen = sctp_listen,
 7578         .pru_peeraddr = sctp_peeraddr,
 7579         .pru_send = sctp_sendm,
 7580         .pru_shutdown = sctp_shutdown,
 7581         .pru_sockaddr = sctp_ingetaddr,
 7582         .pru_sosend = sctp_sosend,
 7583         .pru_soreceive = sctp_soreceive
 7584 };
 7585 #endif

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