The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_usrreq.c

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    1 /*-
    2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/11.2/sys/netinet/sctp_usrreq.c 334802 2018-06-07 18:01:31Z tuexen $");
   35 
   36 #include <netinet/sctp_os.h>
   37 #include <sys/proc.h>
   38 #include <netinet/sctp_pcb.h>
   39 #include <netinet/sctp_header.h>
   40 #include <netinet/sctp_var.h>
   41 #ifdef INET6
   42 #include <netinet6/sctp6_var.h>
   43 #endif
   44 #include <netinet/sctp_sysctl.h>
   45 #include <netinet/sctp_output.h>
   46 #include <netinet/sctp_uio.h>
   47 #include <netinet/sctp_asconf.h>
   48 #include <netinet/sctputil.h>
   49 #include <netinet/sctp_indata.h>
   50 #include <netinet/sctp_timer.h>
   51 #include <netinet/sctp_auth.h>
   52 #include <netinet/sctp_bsd_addr.h>
   53 #include <netinet/udp.h>
   54 
   55 
   56 
   57 extern 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                                 chk->do_rtt = 0;
  142                         }
  143                 }
  144         }
  145 }
  146 
  147 #ifdef INET
  148 void
  149 sctp_notify(struct sctp_inpcb *inp,
  150     struct sctp_tcb *stcb,
  151     struct sctp_nets *net,
  152     uint8_t icmp_type,
  153     uint8_t icmp_code,
  154     uint16_t ip_len,
  155     uint32_t next_mtu)
  156 {
  157 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  158         struct socket *so;
  159 #endif
  160         int timer_stopped;
  161 
  162         if (icmp_type != ICMP_UNREACH) {
  163                 /* We only care about unreachable */
  164                 SCTP_TCB_UNLOCK(stcb);
  165                 return;
  166         }
  167         if ((icmp_code == ICMP_UNREACH_NET) ||
  168             (icmp_code == ICMP_UNREACH_HOST) ||
  169             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  170             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  171             (icmp_code == ICMP_UNREACH_ISOLATED) ||
  172             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  173             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  174             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  175                 /* Mark the net unreachable. */
  176                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  177                         /* OK, that destination is NOT reachable. */
  178                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  179                         net->dest_state &= ~SCTP_ADDR_PF;
  180                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  181                             stcb, 0,
  182                             (void *)net, SCTP_SO_NOT_LOCKED);
  183                 }
  184                 SCTP_TCB_UNLOCK(stcb);
  185         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
  186             (icmp_code == ICMP_UNREACH_PORT)) {
  187                 /* Treat it like an ABORT. */
  188                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
  189 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  190                 so = SCTP_INP_SO(inp);
  191                 atomic_add_int(&stcb->asoc.refcnt, 1);
  192                 SCTP_TCB_UNLOCK(stcb);
  193                 SCTP_SOCKET_LOCK(so, 1);
  194                 SCTP_TCB_LOCK(stcb);
  195                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  196 #endif
  197                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  199 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  200                 SCTP_SOCKET_UNLOCK(so, 1);
  201                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  202 #endif
  203                 /* no need to unlock here, since the TCB is gone */
  204         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
  205                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
  206                         SCTP_TCB_UNLOCK(stcb);
  207                         return;
  208                 }
  209                 /* Find the next (smaller) MTU */
  210                 if (next_mtu == 0) {
  211                         /*
  212                          * Old type router that does not tell us what the
  213                          * next MTU is. Rats we will have to guess (in a
  214                          * educated fashion of course).
  215                          */
  216                         next_mtu = sctp_get_prev_mtu(ip_len);
  217                 }
  218                 /* Stop the PMTU timer. */
  219                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  220                         timer_stopped = 1;
  221                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  222                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  223                 } else {
  224                         timer_stopped = 0;
  225                 }
  226                 /* Update the path MTU. */
  227                 if (net->port) {
  228                         next_mtu -= sizeof(struct udphdr);
  229                 }
  230                 if (net->mtu > next_mtu) {
  231                         net->mtu = next_mtu;
  232                         if (net->port) {
  233                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
  234                         } else {
  235                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
  236                         }
  237                 }
  238                 /* Update the association MTU */
  239                 if (stcb->asoc.smallest_mtu > next_mtu) {
  240                         sctp_pathmtu_adjustment(stcb, next_mtu);
  241                 }
  242                 /* Finally, start the PMTU timer if it was running before. */
  243                 if (timer_stopped) {
  244                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  245                 }
  246                 SCTP_TCB_UNLOCK(stcb);
  247         } else {
  248                 SCTP_TCB_UNLOCK(stcb);
  249         }
  250 }
  251 
  252 void
  253 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
  254 {
  255         struct ip *outer_ip;
  256         struct ip *inner_ip;
  257         struct sctphdr *sh;
  258         struct icmp *icmp;
  259         struct sctp_inpcb *inp;
  260         struct sctp_tcb *stcb;
  261         struct sctp_nets *net;
  262         struct sctp_init_chunk *ch;
  263         struct sockaddr_in src, dst;
  264 
  265         if (sa->sa_family != AF_INET ||
  266             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  267                 return;
  268         }
  269         if (PRC_IS_REDIRECT(cmd)) {
  270                 vip = NULL;
  271         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  272                 return;
  273         }
  274         if (vip != NULL) {
  275                 inner_ip = (struct ip *)vip;
  276                 icmp = (struct icmp *)((caddr_t)inner_ip -
  277                     (sizeof(struct icmp) - sizeof(struct ip)));
  278                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
  279                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
  280                 memset(&src, 0, sizeof(struct sockaddr_in));
  281                 src.sin_family = AF_INET;
  282                 src.sin_len = sizeof(struct sockaddr_in);
  283                 src.sin_port = sh->src_port;
  284                 src.sin_addr = inner_ip->ip_src;
  285                 memset(&dst, 0, sizeof(struct sockaddr_in));
  286                 dst.sin_family = AF_INET;
  287                 dst.sin_len = sizeof(struct sockaddr_in);
  288                 dst.sin_port = sh->dest_port;
  289                 dst.sin_addr = inner_ip->ip_dst;
  290                 /*
  291                  * 'dst' holds the dest of the packet that failed to be
  292                  * sent. 'src' holds our local endpoint address. Thus we
  293                  * reverse the dst and the src in the lookup.
  294                  */
  295                 inp = NULL;
  296                 net = NULL;
  297                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
  298                     (struct sockaddr *)&src,
  299                     &inp, &net, 1,
  300                     SCTP_DEFAULT_VRFID);
  301                 if ((stcb != NULL) &&
  302                     (net != NULL) &&
  303                     (inp != NULL)) {
  304                         /* Check the verification tag */
  305                         if (ntohl(sh->v_tag) != 0) {
  306                                 /*
  307                                  * This must be the verification tag used
  308                                  * for sending out packets. We don't
  309                                  * consider packets reflecting the
  310                                  * verification tag.
  311                                  */
  312                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
  313                                         SCTP_TCB_UNLOCK(stcb);
  314                                         return;
  315                                 }
  316                         } else {
  317                                 if (ntohs(outer_ip->ip_len) >=
  318                                     sizeof(struct ip) +
  319                                     8 + (inner_ip->ip_hl << 2) + 20) {
  320                                         /*
  321                                          * In this case we can check if we
  322                                          * got an INIT chunk and if the
  323                                          * initiate tag matches.
  324                                          */
  325                                         ch = (struct sctp_init_chunk *)(sh + 1);
  326                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
  327                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
  328                                                 SCTP_TCB_UNLOCK(stcb);
  329                                                 return;
  330                                         }
  331                                 } else {
  332                                         SCTP_TCB_UNLOCK(stcb);
  333                                         return;
  334                                 }
  335                         }
  336                         sctp_notify(inp, stcb, net,
  337                             icmp->icmp_type,
  338                             icmp->icmp_code,
  339                             ntohs(inner_ip->ip_len),
  340                             (uint32_t)ntohs(icmp->icmp_nextmtu));
  341                 } else {
  342                         if ((stcb == NULL) && (inp != NULL)) {
  343                                 /* reduce ref-count */
  344                                 SCTP_INP_WLOCK(inp);
  345                                 SCTP_INP_DECR_REF(inp);
  346                                 SCTP_INP_WUNLOCK(inp);
  347                         }
  348                         if (stcb) {
  349                                 SCTP_TCB_UNLOCK(stcb);
  350                         }
  351                 }
  352         }
  353         return;
  354 }
  355 #endif
  356 
  357 static int
  358 sctp_getcred(SYSCTL_HANDLER_ARGS)
  359 {
  360         struct xucred xuc;
  361         struct sockaddr_in addrs[2];
  362         struct sctp_inpcb *inp;
  363         struct sctp_nets *net;
  364         struct sctp_tcb *stcb;
  365         int error;
  366         uint32_t vrf_id;
  367 
  368         /* FIX, for non-bsd is this right? */
  369         vrf_id = SCTP_DEFAULT_VRFID;
  370 
  371         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  372 
  373         if (error)
  374                 return (error);
  375 
  376         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  377         if (error)
  378                 return (error);
  379 
  380         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
  381             sintosa(&addrs[0]),
  382             &inp, &net, 1, vrf_id);
  383         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  384                 if ((inp != NULL) && (stcb == NULL)) {
  385                         /* reduce ref-count */
  386                         SCTP_INP_WLOCK(inp);
  387                         SCTP_INP_DECR_REF(inp);
  388                         goto cred_can_cont;
  389                 }
  390                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  391                 error = ENOENT;
  392                 goto out;
  393         }
  394         SCTP_TCB_UNLOCK(stcb);
  395         /*
  396          * We use the write lock here, only since in the error leg we need
  397          * it. If we used RLOCK, then we would have to
  398          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  399          * Better to use higher wlock.
  400          */
  401         SCTP_INP_WLOCK(inp);
  402 cred_can_cont:
  403         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  404         if (error) {
  405                 SCTP_INP_WUNLOCK(inp);
  406                 goto out;
  407         }
  408         cru2x(inp->sctp_socket->so_cred, &xuc);
  409         SCTP_INP_WUNLOCK(inp);
  410         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  411 out:
  412         return (error);
  413 }
  414 
  415 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  416     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  417 
  418 
  419 #ifdef INET
  420 static void
  421 sctp_abort(struct socket *so)
  422 {
  423         struct sctp_inpcb *inp;
  424         uint32_t flags;
  425 
  426         inp = (struct sctp_inpcb *)so->so_pcb;
  427         if (inp == NULL) {
  428                 return;
  429         }
  430 sctp_must_try_again:
  431         flags = inp->sctp_flags;
  432 #ifdef SCTP_LOG_CLOSING
  433         sctp_log_closing(inp, NULL, 17);
  434 #endif
  435         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  436             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  437 #ifdef SCTP_LOG_CLOSING
  438                 sctp_log_closing(inp, NULL, 16);
  439 #endif
  440                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  441                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  442                 SOCK_LOCK(so);
  443                 SCTP_SB_CLEAR(so->so_snd);
  444                 /*
  445                  * same for the rcv ones, they are only here for the
  446                  * accounting/select.
  447                  */
  448                 SCTP_SB_CLEAR(so->so_rcv);
  449 
  450                 /* Now null out the reference, we are completely detached. */
  451                 so->so_pcb = NULL;
  452                 SOCK_UNLOCK(so);
  453         } else {
  454                 flags = inp->sctp_flags;
  455                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  456                         goto sctp_must_try_again;
  457                 }
  458         }
  459         return;
  460 }
  461 
  462 static int
  463 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
  464 {
  465         struct sctp_inpcb *inp;
  466         struct inpcb *ip_inp;
  467         int error;
  468         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  469 
  470         inp = (struct sctp_inpcb *)so->so_pcb;
  471         if (inp != NULL) {
  472                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  473                 return (EINVAL);
  474         }
  475         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  476                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  477                 if (error) {
  478                         return (error);
  479                 }
  480         }
  481         error = sctp_inpcb_alloc(so, vrf_id);
  482         if (error) {
  483                 return (error);
  484         }
  485         inp = (struct sctp_inpcb *)so->so_pcb;
  486         SCTP_INP_WLOCK(inp);
  487         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  488         ip_inp = &inp->ip_inp.inp;
  489         ip_inp->inp_vflag |= INP_IPV4;
  490         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
  491         SCTP_INP_WUNLOCK(inp);
  492         return (0);
  493 }
  494 
  495 static int
  496 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  497 {
  498         struct sctp_inpcb *inp;
  499 
  500         inp = (struct sctp_inpcb *)so->so_pcb;
  501         if (inp == NULL) {
  502                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  503                 return (EINVAL);
  504         }
  505         if (addr != NULL) {
  506                 if ((addr->sa_family != AF_INET) ||
  507                     (addr->sa_len != sizeof(struct sockaddr_in))) {
  508                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  509                         return (EINVAL);
  510                 }
  511         }
  512         return (sctp_inpcb_bind(so, addr, NULL, p));
  513 }
  514 
  515 #endif
  516 void
  517 sctp_close(struct socket *so)
  518 {
  519         struct sctp_inpcb *inp;
  520         uint32_t flags;
  521 
  522         inp = (struct sctp_inpcb *)so->so_pcb;
  523         if (inp == NULL)
  524                 return;
  525 
  526         /*
  527          * Inform all the lower layer assoc that we are done.
  528          */
  529 sctp_must_try_again:
  530         flags = inp->sctp_flags;
  531 #ifdef SCTP_LOG_CLOSING
  532         sctp_log_closing(inp, NULL, 17);
  533 #endif
  534         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  535             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  536                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  537                     (so->so_rcv.sb_cc > 0)) {
  538 #ifdef SCTP_LOG_CLOSING
  539                         sctp_log_closing(inp, NULL, 13);
  540 #endif
  541                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  542                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  543                 } else {
  544 #ifdef SCTP_LOG_CLOSING
  545                         sctp_log_closing(inp, NULL, 14);
  546 #endif
  547                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  548                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  549                 }
  550                 /*
  551                  * The socket is now detached, no matter what the state of
  552                  * the SCTP association.
  553                  */
  554                 SOCK_LOCK(so);
  555                 SCTP_SB_CLEAR(so->so_snd);
  556                 /*
  557                  * same for the rcv ones, they are only here for the
  558                  * accounting/select.
  559                  */
  560                 SCTP_SB_CLEAR(so->so_rcv);
  561 
  562                 /* Now null out the reference, we are completely detached. */
  563                 so->so_pcb = NULL;
  564                 SOCK_UNLOCK(so);
  565         } else {
  566                 flags = inp->sctp_flags;
  567                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  568                         goto sctp_must_try_again;
  569                 }
  570         }
  571         return;
  572 }
  573 
  574 
  575 int
  576 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  577     struct mbuf *control, struct thread *p);
  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         struct sctp_inpcb *inp;
  585         int error;
  586 
  587         inp = (struct sctp_inpcb *)so->so_pcb;
  588         if (inp == NULL) {
  589                 if (control) {
  590                         sctp_m_freem(control);
  591                         control = NULL;
  592                 }
  593                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  594                 sctp_m_freem(m);
  595                 return (EINVAL);
  596         }
  597         /* Got to have an to address if we are NOT a connected socket */
  598         if ((addr == NULL) &&
  599             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  600             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
  601                 goto connected_type;
  602         } else if (addr == NULL) {
  603                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  604                 error = EDESTADDRREQ;
  605                 sctp_m_freem(m);
  606                 if (control) {
  607                         sctp_m_freem(control);
  608                         control = NULL;
  609                 }
  610                 return (error);
  611         }
  612 #ifdef INET6
  613         if (addr->sa_family != AF_INET) {
  614                 /* must be a v4 address! */
  615                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  616                 sctp_m_freem(m);
  617                 if (control) {
  618                         sctp_m_freem(control);
  619                         control = NULL;
  620                 }
  621                 error = EDESTADDRREQ;
  622                 return (error);
  623         }
  624 #endif                          /* INET6 */
  625 connected_type:
  626         /* now what about control */
  627         if (control) {
  628                 if (inp->control) {
  629                         SCTP_PRINTF("huh? control set?\n");
  630                         sctp_m_freem(inp->control);
  631                         inp->control = NULL;
  632                 }
  633                 inp->control = control;
  634         }
  635         /* Place the data */
  636         if (inp->pkt) {
  637                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  638                 inp->pkt_last = m;
  639         } else {
  640                 inp->pkt_last = inp->pkt = m;
  641         }
  642         if (
  643         /* FreeBSD uses a flag passed */
  644             ((flags & PRUS_MORETOCOME) == 0)
  645             ) {
  646                 /*
  647                  * note with the current version this code will only be used
  648                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  649                  * re-defining sosend to use the sctp_sosend. One can
  650                  * optionally switch back to this code (by changing back the
  651                  * definitions) but this is not advisable. This code is used
  652                  * by FreeBSD when sending a file with sendfile() though.
  653                  */
  654                 int ret;
  655 
  656                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  657                 inp->pkt = NULL;
  658                 inp->control = NULL;
  659                 return (ret);
  660         } else {
  661                 return (0);
  662         }
  663 }
  664 
  665 int
  666 sctp_disconnect(struct socket *so)
  667 {
  668         struct sctp_inpcb *inp;
  669 
  670         inp = (struct sctp_inpcb *)so->so_pcb;
  671         if (inp == NULL) {
  672                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  673                 return (ENOTCONN);
  674         }
  675         SCTP_INP_RLOCK(inp);
  676         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  677             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  678                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
  679                         /* No connection */
  680                         SCTP_INP_RUNLOCK(inp);
  681                         return (0);
  682                 } else {
  683                         struct sctp_association *asoc;
  684                         struct sctp_tcb *stcb;
  685 
  686                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  687                         if (stcb == NULL) {
  688                                 SCTP_INP_RUNLOCK(inp);
  689                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  690                                 return (EINVAL);
  691                         }
  692                         SCTP_TCB_LOCK(stcb);
  693                         asoc = &stcb->asoc;
  694                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  695                                 /* We are about to be freed, out of here */
  696                                 SCTP_TCB_UNLOCK(stcb);
  697                                 SCTP_INP_RUNLOCK(inp);
  698                                 return (0);
  699                         }
  700                         if (((so->so_options & SO_LINGER) &&
  701                             (so->so_linger == 0)) ||
  702                             (so->so_rcv.sb_cc > 0)) {
  703                                 if (SCTP_GET_STATE(asoc) !=
  704                                     SCTP_STATE_COOKIE_WAIT) {
  705                                         /* Left with Data unread */
  706                                         struct mbuf *op_err;
  707 
  708                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  709                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  710                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  711                                 }
  712                                 SCTP_INP_RUNLOCK(inp);
  713                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  714                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  715                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  716                                 }
  717                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  718                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  719                                 /* No unlock tcb assoc is gone */
  720                                 return (0);
  721                         }
  722                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  723                             TAILQ_EMPTY(&asoc->sent_queue) &&
  724                             (asoc->stream_queue_cnt == 0)) {
  725                                 /* there is nothing queued to send, so done */
  726                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  727                                         goto abort_anyway;
  728                                 }
  729                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
  730                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  731                                         /* only send SHUTDOWN 1st time thru */
  732                                         struct sctp_nets *netp;
  733 
  734                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
  735                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  736                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  737                                         }
  738                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  739                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  740                                         sctp_stop_timers_for_shutdown(stcb);
  741                                         if (stcb->asoc.alternate) {
  742                                                 netp = stcb->asoc.alternate;
  743                                         } else {
  744                                                 netp = stcb->asoc.primary_destination;
  745                                         }
  746                                         sctp_send_shutdown(stcb, netp);
  747                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  748                                             stcb->sctp_ep, stcb, netp);
  749                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  750                                             stcb->sctp_ep, stcb, netp);
  751                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  752                                 }
  753                         } else {
  754                                 /*
  755                                  * we still got (or just got) data to send,
  756                                  * so set SHUTDOWN_PENDING
  757                                  */
  758                                 /*
  759                                  * XXX sockets draft says that SCTP_EOF
  760                                  * should be sent with no data. currently,
  761                                  * we will allow user data to be sent first
  762                                  * and move to SHUTDOWN-PENDING
  763                                  */
  764                                 struct sctp_nets *netp;
  765 
  766                                 if (stcb->asoc.alternate) {
  767                                         netp = stcb->asoc.alternate;
  768                                 } else {
  769                                         netp = stcb->asoc.primary_destination;
  770                                 }
  771 
  772                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
  773                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  774                                     netp);
  775                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  776                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
  777                                 }
  778                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  779                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  780                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  781                                         struct mbuf *op_err;
  782 
  783                         abort_anyway:
  784                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  785                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  786                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  787                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  788                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  789                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  790                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  791                                         }
  792                                         SCTP_INP_RUNLOCK(inp);
  793                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
  794                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  795                                         return (0);
  796                                 } else {
  797                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  798                                 }
  799                         }
  800                         soisdisconnecting(so);
  801                         SCTP_TCB_UNLOCK(stcb);
  802                         SCTP_INP_RUNLOCK(inp);
  803                         return (0);
  804                 }
  805                 /* not reached */
  806         } else {
  807                 /* UDP model does not support this */
  808                 SCTP_INP_RUNLOCK(inp);
  809                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  810                 return (EOPNOTSUPP);
  811         }
  812 }
  813 
  814 int
  815 sctp_flush(struct socket *so, int how)
  816 {
  817         /*
  818          * We will just clear out the values and let subsequent close clear
  819          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  820          * they will not be able to read the data, the socket will block
  821          * that from happening.
  822          */
  823         struct sctp_inpcb *inp;
  824 
  825         inp = (struct sctp_inpcb *)so->so_pcb;
  826         if (inp == NULL) {
  827                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  828                 return (EINVAL);
  829         }
  830         SCTP_INP_RLOCK(inp);
  831         /* For the 1 to many model this does nothing */
  832         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  833                 SCTP_INP_RUNLOCK(inp);
  834                 return (0);
  835         }
  836         SCTP_INP_RUNLOCK(inp);
  837         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  838                 /*
  839                  * First make sure the sb will be happy, we don't use these
  840                  * except maybe the count
  841                  */
  842                 SCTP_INP_WLOCK(inp);
  843                 SCTP_INP_READ_LOCK(inp);
  844                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
  845                 SCTP_INP_READ_UNLOCK(inp);
  846                 SCTP_INP_WUNLOCK(inp);
  847                 so->so_rcv.sb_cc = 0;
  848                 so->so_rcv.sb_mbcnt = 0;
  849                 so->so_rcv.sb_mb = NULL;
  850         }
  851         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  852                 /*
  853                  * First make sure the sb will be happy, we don't use these
  854                  * except maybe the count
  855                  */
  856                 so->so_snd.sb_cc = 0;
  857                 so->so_snd.sb_mbcnt = 0;
  858                 so->so_snd.sb_mb = NULL;
  859 
  860         }
  861         return (0);
  862 }
  863 
  864 int
  865 sctp_shutdown(struct socket *so)
  866 {
  867         struct sctp_inpcb *inp;
  868 
  869         inp = (struct sctp_inpcb *)so->so_pcb;
  870         if (inp == NULL) {
  871                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  872                 return (EINVAL);
  873         }
  874         SCTP_INP_RLOCK(inp);
  875         /* For UDP model this is a invalid call */
  876         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  877             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
  878                 /* Restore the flags that the soshutdown took away. */
  879                 SOCKBUF_LOCK(&so->so_rcv);
  880                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  881                 SOCKBUF_UNLOCK(&so->so_rcv);
  882                 /* This proc will wakeup for read and do nothing (I hope) */
  883                 SCTP_INP_RUNLOCK(inp);
  884                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  885                 return (EOPNOTSUPP);
  886         } else {
  887                 /*
  888                  * Ok, if we reach here its the TCP model and it is either a
  889                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
  890                  * against it.
  891                  */
  892                 struct sctp_tcb *stcb;
  893                 struct sctp_association *asoc;
  894                 struct sctp_nets *netp;
  895 
  896                 if ((so->so_state &
  897                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  898                         SCTP_INP_RUNLOCK(inp);
  899                         return (ENOTCONN);
  900                 }
  901                 socantsendmore(so);
  902 
  903                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  904                 if (stcb == NULL) {
  905                         /*
  906                          * Ok, we hit the case that the shutdown call was
  907                          * made after an abort or something. Nothing to do
  908                          * now.
  909                          */
  910                         SCTP_INP_RUNLOCK(inp);
  911                         return (0);
  912                 }
  913                 SCTP_TCB_LOCK(stcb);
  914                 asoc = &stcb->asoc;
  915                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  916                         SCTP_TCB_UNLOCK(stcb);
  917                         SCTP_INP_RUNLOCK(inp);
  918                         return (0);
  919                 }
  920                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
  921                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
  922                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
  923                         /*
  924                          * If we are not in or before ESTABLISHED, there is
  925                          * no protocol action required.
  926                          */
  927                         SCTP_TCB_UNLOCK(stcb);
  928                         SCTP_INP_RUNLOCK(inp);
  929                         return (0);
  930                 }
  931                 if (stcb->asoc.alternate) {
  932                         netp = stcb->asoc.alternate;
  933                 } else {
  934                         netp = stcb->asoc.primary_destination;
  935                 }
  936                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
  937                     TAILQ_EMPTY(&asoc->send_queue) &&
  938                     TAILQ_EMPTY(&asoc->sent_queue) &&
  939                     (asoc->stream_queue_cnt == 0)) {
  940                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  941                                 goto abort_anyway;
  942                         }
  943                         /* there is nothing queued to send, so I'm done... */
  944                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  945                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  946                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  947                         sctp_stop_timers_for_shutdown(stcb);
  948                         sctp_send_shutdown(stcb, netp);
  949                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  950                             stcb->sctp_ep, stcb, netp);
  951                 } else {
  952                         /*
  953                          * We still got (or just got) data to send, so set
  954                          * SHUTDOWN_PENDING.
  955                          */
  956                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  957                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
  958                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
  959                         }
  960                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  961                             TAILQ_EMPTY(&asoc->sent_queue) &&
  962                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  963                                 struct mbuf *op_err;
  964 
  965                 abort_anyway:
  966                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
  967                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
  968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
  969                                     op_err, SCTP_SO_LOCKED);
  970                                 SCTP_INP_RUNLOCK(inp);
  971                                 return (0);
  972                         }
  973                 }
  974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
  975                 /*
  976                  * XXX: Why do this in the case where we have still data
  977                  * queued?
  978                  */
  979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  980                 SCTP_TCB_UNLOCK(stcb);
  981                 SCTP_INP_RUNLOCK(inp);
  982                 return (0);
  983         }
  984 }
  985 
  986 /*
  987  * copies a "user" presentable address and removes embedded scope, etc.
  988  * returns 0 on success, 1 on error
  989  */
  990 static uint32_t
  991 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
  992 {
  993 #ifdef INET6
  994         struct sockaddr_in6 lsa6;
  995 
  996         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
  997             &lsa6);
  998 #endif
  999         memcpy(ss, sa, sa->sa_len);
 1000         return (0);
 1001 }
 1002 
 1003 
 1004 
 1005 /*
 1006  * NOTE: assumes addr lock is held
 1007  */
 1008 static size_t
 1009 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1010     struct sctp_tcb *stcb,
 1011     size_t limit,
 1012     struct sockaddr_storage *sas,
 1013     uint32_t vrf_id)
 1014 {
 1015         struct sctp_ifn *sctp_ifn;
 1016         struct sctp_ifa *sctp_ifa;
 1017         size_t actual;
 1018         int loopback_scope;
 1019 #if defined(INET)
 1020         int ipv4_local_scope, ipv4_addr_legal;
 1021 #endif
 1022 #if defined(INET6)
 1023         int local_scope, site_scope, ipv6_addr_legal;
 1024 #endif
 1025         struct sctp_vrf *vrf;
 1026 
 1027         actual = 0;
 1028         if (limit <= 0)
 1029                 return (actual);
 1030 
 1031         if (stcb) {
 1032                 /* Turn on all the appropriate scope */
 1033                 loopback_scope = stcb->asoc.scope.loopback_scope;
 1034 #if defined(INET)
 1035                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 1036                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 1037 #endif
 1038 #if defined(INET6)
 1039                 local_scope = stcb->asoc.scope.local_scope;
 1040                 site_scope = stcb->asoc.scope.site_scope;
 1041                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 1042 #endif
 1043         } else {
 1044                 /* Use generic values for endpoints. */
 1045                 loopback_scope = 1;
 1046 #if defined(INET)
 1047                 ipv4_local_scope = 1;
 1048 #endif
 1049 #if defined(INET6)
 1050                 local_scope = 1;
 1051                 site_scope = 1;
 1052 #endif
 1053                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1054 #if defined(INET6)
 1055                         ipv6_addr_legal = 1;
 1056 #endif
 1057 #if defined(INET)
 1058                         if (SCTP_IPV6_V6ONLY(inp)) {
 1059                                 ipv4_addr_legal = 0;
 1060                         } else {
 1061                                 ipv4_addr_legal = 1;
 1062                         }
 1063 #endif
 1064                 } else {
 1065 #if defined(INET6)
 1066                         ipv6_addr_legal = 0;
 1067 #endif
 1068 #if defined(INET)
 1069                         ipv4_addr_legal = 1;
 1070 #endif
 1071                 }
 1072         }
 1073         vrf = sctp_find_vrf(vrf_id);
 1074         if (vrf == NULL) {
 1075                 return (0);
 1076         }
 1077         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1078                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1079                         if ((loopback_scope == 0) &&
 1080                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1081                                 /* Skip loopback if loopback_scope not set */
 1082                                 continue;
 1083                         }
 1084                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1085                                 if (stcb) {
 1086                                         /*
 1087                                          * For the BOUND-ALL case, the list
 1088                                          * associated with a TCB is Always
 1089                                          * considered a reverse list.. i.e.
 1090                                          * it lists addresses that are NOT
 1091                                          * part of the association. If this
 1092                                          * is one of those we must skip it.
 1093                                          */
 1094                                         if (sctp_is_addr_restricted(stcb,
 1095                                             sctp_ifa)) {
 1096                                                 continue;
 1097                                         }
 1098                                 }
 1099                                 switch (sctp_ifa->address.sa.sa_family) {
 1100 #ifdef INET
 1101                                 case AF_INET:
 1102                                         if (ipv4_addr_legal) {
 1103                                                 struct sockaddr_in *sin;
 1104 
 1105                                                 sin = &sctp_ifa->address.sin;
 1106                                                 if (sin->sin_addr.s_addr == 0) {
 1107                                                         /*
 1108                                                          * we skip
 1109                                                          * unspecifed
 1110                                                          * addresses
 1111                                                          */
 1112                                                         continue;
 1113                                                 }
 1114                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 1115                                                     &sin->sin_addr) != 0) {
 1116                                                         continue;
 1117                                                 }
 1118                                                 if ((ipv4_local_scope == 0) &&
 1119                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1120                                                         continue;
 1121                                                 }
 1122 #ifdef INET6
 1123                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1124                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1125                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1126                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1127                                                         actual += sizeof(struct sockaddr_in6);
 1128                                                 } else {
 1129 #endif
 1130                                                         memcpy(sas, sin, sizeof(*sin));
 1131                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1132                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 1133                                                         actual += sizeof(*sin);
 1134 #ifdef INET6
 1135                                                 }
 1136 #endif
 1137                                                 if (actual >= limit) {
 1138                                                         return (actual);
 1139                                                 }
 1140                                         } else {
 1141                                                 continue;
 1142                                         }
 1143                                         break;
 1144 #endif
 1145 #ifdef INET6
 1146                                 case AF_INET6:
 1147                                         if (ipv6_addr_legal) {
 1148                                                 struct sockaddr_in6 *sin6;
 1149 
 1150                                                 sin6 = &sctp_ifa->address.sin6;
 1151                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1152                                                         /*
 1153                                                          * we skip
 1154                                                          * unspecifed
 1155                                                          * addresses
 1156                                                          */
 1157                                                         continue;
 1158                                                 }
 1159                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 1160                                                     &sin6->sin6_addr) != 0) {
 1161                                                         continue;
 1162                                                 }
 1163                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1164                                                         if (local_scope == 0)
 1165                                                                 continue;
 1166                                                         if (sin6->sin6_scope_id == 0) {
 1167                                                                 if (sa6_recoverscope(sin6) != 0)
 1168                                                                         /*
 1169                                                                          *
 1170                                                                          * bad
 1171                                                                          * link
 1172                                                                          *
 1173                                                                          * local
 1174                                                                          *
 1175                                                                          * address
 1176                                                                          */
 1177                                                                         continue;
 1178                                                         }
 1179                                                 }
 1180                                                 if ((site_scope == 0) &&
 1181                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1182                                                         continue;
 1183                                                 }
 1184                                                 memcpy(sas, sin6, sizeof(*sin6));
 1185                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1186                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 1187                                                 actual += sizeof(*sin6);
 1188                                                 if (actual >= limit) {
 1189                                                         return (actual);
 1190                                                 }
 1191                                         } else {
 1192                                                 continue;
 1193                                         }
 1194                                         break;
 1195 #endif
 1196                                 default:
 1197                                         /* TSNH */
 1198                                         break;
 1199                                 }
 1200                         }
 1201                 }
 1202         } else {
 1203                 struct sctp_laddr *laddr;
 1204 
 1205                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1206                         if (stcb) {
 1207                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1208                                         continue;
 1209                                 }
 1210                         }
 1211                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1212                                 continue;
 1213                         switch (laddr->ifa->address.sa.sa_family) {
 1214 #ifdef INET
 1215                         case AF_INET:
 1216                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1217                                 break;
 1218 #endif
 1219 #ifdef INET6
 1220                         case AF_INET6:
 1221                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1222                                 break;
 1223 #endif
 1224                         default:
 1225                                 /* TSNH */
 1226                                 break;
 1227                         }
 1228                         sas = (struct sockaddr_storage *)((caddr_t)sas +
 1229                             laddr->ifa->address.sa.sa_len);
 1230                         actual += laddr->ifa->address.sa.sa_len;
 1231                         if (actual >= limit) {
 1232                                 return (actual);
 1233                         }
 1234                 }
 1235         }
 1236         return (actual);
 1237 }
 1238 
 1239 static size_t
 1240 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1241     struct sctp_tcb *stcb,
 1242     size_t limit,
 1243     struct sockaddr_storage *sas)
 1244 {
 1245         size_t size = 0;
 1246 
 1247         SCTP_IPI_ADDR_RLOCK();
 1248         /* fill up addresses for the endpoint's default vrf */
 1249         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1250             inp->def_vrf_id);
 1251         SCTP_IPI_ADDR_RUNLOCK();
 1252         return (size);
 1253 }
 1254 
 1255 /*
 1256  * NOTE: assumes addr lock is held
 1257  */
 1258 static int
 1259 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1260 {
 1261         int cnt = 0;
 1262         struct sctp_vrf *vrf = NULL;
 1263 
 1264         /*
 1265          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1266          * number of addresses that you COULD get. In reality the sub-set
 1267          * bound may have an exclusion list for a given TCB OR in the
 1268          * bound-all case a TCB may NOT include the loopback or other
 1269          * addresses as well.
 1270          */
 1271         vrf = sctp_find_vrf(vrf_id);
 1272         if (vrf == NULL) {
 1273                 return (0);
 1274         }
 1275         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1276                 struct sctp_ifn *sctp_ifn;
 1277                 struct sctp_ifa *sctp_ifa;
 1278 
 1279                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1280                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1281                                 /* Count them if they are the right type */
 1282                                 switch (sctp_ifa->address.sa.sa_family) {
 1283 #ifdef INET
 1284                                 case AF_INET:
 1285 #ifdef INET6
 1286                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1287                                                 cnt += sizeof(struct sockaddr_in6);
 1288                                         else
 1289                                                 cnt += sizeof(struct sockaddr_in);
 1290 #else
 1291                                         cnt += sizeof(struct sockaddr_in);
 1292 #endif
 1293                                         break;
 1294 #endif
 1295 #ifdef INET6
 1296                                 case AF_INET6:
 1297                                         cnt += sizeof(struct sockaddr_in6);
 1298                                         break;
 1299 #endif
 1300                                 default:
 1301                                         break;
 1302                                 }
 1303                         }
 1304                 }
 1305         } else {
 1306                 struct sctp_laddr *laddr;
 1307 
 1308                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1309                         switch (laddr->ifa->address.sa.sa_family) {
 1310 #ifdef INET
 1311                         case AF_INET:
 1312 #ifdef INET6
 1313                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1314                                         cnt += sizeof(struct sockaddr_in6);
 1315                                 else
 1316                                         cnt += sizeof(struct sockaddr_in);
 1317 #else
 1318                                 cnt += sizeof(struct sockaddr_in);
 1319 #endif
 1320                                 break;
 1321 #endif
 1322 #ifdef INET6
 1323                         case AF_INET6:
 1324                                 cnt += sizeof(struct sockaddr_in6);
 1325                                 break;
 1326 #endif
 1327                         default:
 1328                                 break;
 1329                         }
 1330                 }
 1331         }
 1332         return (cnt);
 1333 }
 1334 
 1335 static int
 1336 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1337 {
 1338         int cnt = 0;
 1339 
 1340         SCTP_IPI_ADDR_RLOCK();
 1341         /* count addresses for the endpoint's default VRF */
 1342         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1343         SCTP_IPI_ADDR_RUNLOCK();
 1344         return (cnt);
 1345 }
 1346 
 1347 static int
 1348 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1349     size_t optsize, void *p, int delay)
 1350 {
 1351         int error = 0;
 1352         int creat_lock_on = 0;
 1353         struct sctp_tcb *stcb = NULL;
 1354         struct sockaddr *sa;
 1355         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1356         uint32_t vrf_id;
 1357         int bad_addresses = 0;
 1358         sctp_assoc_t *a_id;
 1359 
 1360         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1361 
 1362         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1363             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1364                 /* We are already connected AND the TCP model */
 1365                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1366                 return (EADDRINUSE);
 1367         }
 1368         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1369             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1370                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1371                 return (EINVAL);
 1372         }
 1373         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1374                 SCTP_INP_RLOCK(inp);
 1375                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1376                 SCTP_INP_RUNLOCK(inp);
 1377         }
 1378         if (stcb) {
 1379                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1380                 return (EALREADY);
 1381         }
 1382         SCTP_INP_INCR_REF(inp);
 1383         SCTP_ASOC_CREATE_LOCK(inp);
 1384         creat_lock_on = 1;
 1385         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1386             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1387                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1388                 error = EFAULT;
 1389                 goto out_now;
 1390         }
 1391         totaddrp = (unsigned int *)optval;
 1392         totaddr = *totaddrp;
 1393         sa = (struct sockaddr *)(totaddrp + 1);
 1394         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
 1395         if ((stcb != NULL) || bad_addresses) {
 1396                 /* Already have or am bring up an association */
 1397                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1398                 creat_lock_on = 0;
 1399                 if (stcb)
 1400                         SCTP_TCB_UNLOCK(stcb);
 1401                 if (bad_addresses == 0) {
 1402                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1403                         error = EALREADY;
 1404                 }
 1405                 goto out_now;
 1406         }
 1407 #ifdef INET6
 1408         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1409             (num_v6 > 0)) {
 1410                 error = EINVAL;
 1411                 goto out_now;
 1412         }
 1413         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1414             (num_v4 > 0)) {
 1415                 struct in6pcb *inp6;
 1416 
 1417                 inp6 = (struct in6pcb *)inp;
 1418                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1419                         /*
 1420                          * if IPV6_V6ONLY flag, ignore connections destined
 1421                          * to a v4 addr or v4-mapped addr
 1422                          */
 1423                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1424                         error = EINVAL;
 1425                         goto out_now;
 1426                 }
 1427         }
 1428 #endif                          /* INET6 */
 1429         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1430             SCTP_PCB_FLAGS_UNBOUND) {
 1431                 /* Bind a ephemeral port */
 1432                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1433                 if (error) {
 1434                         goto out_now;
 1435                 }
 1436         }
 1437         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1438         vrf_id = inp->def_vrf_id;
 1439 
 1440 
 1441         /* We are GOOD to go */
 1442         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
 1443             inp->sctp_ep.pre_open_stream_count,
 1444             inp->sctp_ep.port,
 1445             (struct thread *)p
 1446             );
 1447         if (stcb == NULL) {
 1448                 /* Gak! no memory */
 1449                 goto out_now;
 1450         }
 1451         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1452                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1453                 /* Set the connected flag so we can queue data */
 1454                 soisconnecting(so);
 1455         }
 1456         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 1457         /* move to second address */
 1458         switch (sa->sa_family) {
 1459 #ifdef INET
 1460         case AF_INET:
 1461                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1462                 break;
 1463 #endif
 1464 #ifdef INET6
 1465         case AF_INET6:
 1466                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1467                 break;
 1468 #endif
 1469         default:
 1470                 break;
 1471         }
 1472 
 1473         error = 0;
 1474         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1475         /* Fill in the return id */
 1476         if (error) {
 1477                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
 1478                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
 1479                 goto out_now;
 1480         }
 1481         a_id = (sctp_assoc_t *)optval;
 1482         *a_id = sctp_get_associd(stcb);
 1483 
 1484         /* initialize authentication parameters for the assoc */
 1485         sctp_initialize_auth_params(inp, stcb);
 1486 
 1487         if (delay) {
 1488                 /* doing delayed connection */
 1489                 stcb->asoc.delayed_connection = 1;
 1490                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1491         } else {
 1492                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1493                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1494         }
 1495         SCTP_TCB_UNLOCK(stcb);
 1496 out_now:
 1497         if (creat_lock_on) {
 1498                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1499         }
 1500         SCTP_INP_DECR_REF(inp);
 1501         return (error);
 1502 }
 1503 
 1504 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1505         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1506             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1507                 SCTP_INP_RLOCK(inp); \
 1508                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1509                 if (stcb) { \
 1510                         SCTP_TCB_LOCK(stcb); \
 1511                 } \
 1512                 SCTP_INP_RUNLOCK(inp); \
 1513         } else if (assoc_id > SCTP_ALL_ASSOC) { \
 1514                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1515                 if (stcb == NULL) { \
 1516                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1517                         error = ENOENT; \
 1518                         break; \
 1519                 } \
 1520         } else { \
 1521                 stcb = NULL; \
 1522         } \
 1523 }
 1524 
 1525 
 1526 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
 1527         if (size < sizeof(type)) { \
 1528                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1529                 error = EINVAL; \
 1530                 break; \
 1531         } else { \
 1532                 destp = (type *)srcp; \
 1533         } \
 1534 }
 1535 
 1536 static int
 1537 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1538     void *p)
 1539 {
 1540         struct sctp_inpcb *inp = NULL;
 1541         int error, val = 0;
 1542         struct sctp_tcb *stcb = NULL;
 1543 
 1544         if (optval == NULL) {
 1545                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1546                 return (EINVAL);
 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                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1682                                         SCTP_INP_RLOCK(inp);
 1683                                         if (inp->idata_supported) {
 1684                                                 av->assoc_value = 1;
 1685                                         } else {
 1686                                                 av->assoc_value = 0;
 1687                                         }
 1688                                         SCTP_INP_RUNLOCK(inp);
 1689                                 } else {
 1690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1691                                         error = EINVAL;
 1692                                 }
 1693                         }
 1694                         if (error == 0) {
 1695                                 *optsize = sizeof(struct sctp_assoc_value);
 1696                         }
 1697                         break;
 1698                 }
 1699         case SCTP_CMT_ON_OFF:
 1700                 {
 1701                         struct sctp_assoc_value *av;
 1702 
 1703                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1704                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1705                         if (stcb) {
 1706                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1707                                 SCTP_TCB_UNLOCK(stcb);
 1708                         } else {
 1709                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1710                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1711                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1712                                         SCTP_INP_RLOCK(inp);
 1713                                         av->assoc_value = inp->sctp_cmt_on_off;
 1714                                         SCTP_INP_RUNLOCK(inp);
 1715                                 } else {
 1716                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1717                                         error = EINVAL;
 1718                                 }
 1719                         }
 1720                         if (error == 0) {
 1721                                 *optsize = sizeof(struct sctp_assoc_value);
 1722                         }
 1723                         break;
 1724                 }
 1725         case SCTP_PLUGGABLE_CC:
 1726                 {
 1727                         struct sctp_assoc_value *av;
 1728 
 1729                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1730                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1731                         if (stcb) {
 1732                                 av->assoc_value = stcb->asoc.congestion_control_module;
 1733                                 SCTP_TCB_UNLOCK(stcb);
 1734                         } else {
 1735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1737                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1738                                         SCTP_INP_RLOCK(inp);
 1739                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
 1740                                         SCTP_INP_RUNLOCK(inp);
 1741                                 } else {
 1742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1743                                         error = EINVAL;
 1744                                 }
 1745                         }
 1746                         if (error == 0) {
 1747                                 *optsize = sizeof(struct sctp_assoc_value);
 1748                         }
 1749                         break;
 1750                 }
 1751         case SCTP_CC_OPTION:
 1752                 {
 1753                         struct sctp_cc_option *cc_opt;
 1754 
 1755                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
 1756                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 1757                         if (stcb == NULL) {
 1758                                 error = EINVAL;
 1759                         } else {
 1760                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 1761                                         error = ENOTSUP;
 1762                                 } else {
 1763                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
 1764                                         *optsize = sizeof(struct sctp_cc_option);
 1765                                 }
 1766                                 SCTP_TCB_UNLOCK(stcb);
 1767                         }
 1768                         break;
 1769                 }
 1770         case SCTP_PLUGGABLE_SS:
 1771                 {
 1772                         struct sctp_assoc_value *av;
 1773 
 1774                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1775                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1776                         if (stcb) {
 1777                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
 1778                                 SCTP_TCB_UNLOCK(stcb);
 1779                         } else {
 1780                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1781                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1782                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1783                                         SCTP_INP_RLOCK(inp);
 1784                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
 1785                                         SCTP_INP_RUNLOCK(inp);
 1786                                 } else {
 1787                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1788                                         error = EINVAL;
 1789                                 }
 1790                         }
 1791                         if (error == 0) {
 1792                                 *optsize = sizeof(struct sctp_assoc_value);
 1793                         }
 1794                         break;
 1795                 }
 1796         case SCTP_SS_VALUE:
 1797                 {
 1798                         struct sctp_stream_value *av;
 1799 
 1800                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
 1801                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1802                         if (stcb) {
 1803                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 1804                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 1805                                     &av->stream_value) < 0)) {
 1806                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1807                                         error = EINVAL;
 1808                                 } else {
 1809                                         *optsize = sizeof(struct sctp_stream_value);
 1810                                 }
 1811                                 SCTP_TCB_UNLOCK(stcb);
 1812                         } else {
 1813                                 /*
 1814                                  * Can't get stream value without
 1815                                  * association
 1816                                  */
 1817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1818                                 error = EINVAL;
 1819                         }
 1820                         break;
 1821                 }
 1822         case SCTP_GET_ADDR_LEN:
 1823                 {
 1824                         struct sctp_assoc_value *av;
 1825 
 1826                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1827                         error = EINVAL;
 1828 #ifdef INET
 1829                         if (av->assoc_value == AF_INET) {
 1830                                 av->assoc_value = sizeof(struct sockaddr_in);
 1831                                 error = 0;
 1832                         }
 1833 #endif
 1834 #ifdef INET6
 1835                         if (av->assoc_value == AF_INET6) {
 1836                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1837                                 error = 0;
 1838                         }
 1839 #endif
 1840                         if (error) {
 1841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1842                         } else {
 1843                                 *optsize = sizeof(struct sctp_assoc_value);
 1844                         }
 1845                         break;
 1846                 }
 1847         case SCTP_GET_ASSOC_NUMBER:
 1848                 {
 1849                         uint32_t *value, cnt;
 1850 
 1851                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1852                         SCTP_INP_RLOCK(inp);
 1853                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1854                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1855                                 /* Can't do this for a 1-1 socket */
 1856                                 error = EINVAL;
 1857                                 SCTP_INP_RUNLOCK(inp);
 1858                                 break;
 1859                         }
 1860                         cnt = 0;
 1861                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1862                                 cnt++;
 1863                         }
 1864                         SCTP_INP_RUNLOCK(inp);
 1865                         *value = cnt;
 1866                         *optsize = sizeof(uint32_t);
 1867                         break;
 1868                 }
 1869         case SCTP_GET_ASSOC_ID_LIST:
 1870                 {
 1871                         struct sctp_assoc_ids *ids;
 1872                         uint32_t at;
 1873                         size_t limit;
 1874 
 1875                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1876                         SCTP_INP_RLOCK(inp);
 1877                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1878                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 1879                                 /* Can't do this for a 1-1 socket */
 1880                                 error = EINVAL;
 1881                                 SCTP_INP_RUNLOCK(inp);
 1882                                 break;
 1883                         }
 1884                         at = 0;
 1885                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1886                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1887                                 if (at < limit) {
 1888                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1889                                         if (at == 0) {
 1890                                                 error = EINVAL;
 1891                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1892                                                 break;
 1893                                         }
 1894                                 } else {
 1895                                         error = EINVAL;
 1896                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1897                                         break;
 1898                                 }
 1899                         }
 1900                         SCTP_INP_RUNLOCK(inp);
 1901                         if (error == 0) {
 1902                                 ids->gaids_number_of_ids = at;
 1903                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1904                         }
 1905                         break;
 1906                 }
 1907         case SCTP_CONTEXT:
 1908                 {
 1909                         struct sctp_assoc_value *av;
 1910 
 1911                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1912                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1913 
 1914                         if (stcb) {
 1915                                 av->assoc_value = stcb->asoc.context;
 1916                                 SCTP_TCB_UNLOCK(stcb);
 1917                         } else {
 1918                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1919                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1920                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1921                                         SCTP_INP_RLOCK(inp);
 1922                                         av->assoc_value = inp->sctp_context;
 1923                                         SCTP_INP_RUNLOCK(inp);
 1924                                 } else {
 1925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1926                                         error = EINVAL;
 1927                                 }
 1928                         }
 1929                         if (error == 0) {
 1930                                 *optsize = sizeof(struct sctp_assoc_value);
 1931                         }
 1932                         break;
 1933                 }
 1934         case SCTP_VRF_ID:
 1935                 {
 1936                         uint32_t *default_vrfid;
 1937 
 1938                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1939                         *default_vrfid = inp->def_vrf_id;
 1940                         *optsize = sizeof(uint32_t);
 1941                         break;
 1942                 }
 1943         case SCTP_GET_ASOC_VRF:
 1944                 {
 1945                         struct sctp_assoc_value *id;
 1946 
 1947                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1948                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1949                         if (stcb == NULL) {
 1950                                 error = EINVAL;
 1951                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1952                         } else {
 1953                                 id->assoc_value = stcb->asoc.vrf_id;
 1954                                 SCTP_TCB_UNLOCK(stcb);
 1955                                 *optsize = sizeof(struct sctp_assoc_value);
 1956                         }
 1957                         break;
 1958                 }
 1959         case SCTP_GET_VRF_IDS:
 1960                 {
 1961                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1962                         error = EOPNOTSUPP;
 1963                         break;
 1964                 }
 1965         case SCTP_GET_NONCE_VALUES:
 1966                 {
 1967                         struct sctp_get_nonce_values *gnv;
 1968 
 1969                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 1970                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 1971 
 1972                         if (stcb) {
 1973                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 1974                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 1975                                 SCTP_TCB_UNLOCK(stcb);
 1976                                 *optsize = sizeof(struct sctp_get_nonce_values);
 1977                         } else {
 1978                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 1979                                 error = ENOTCONN;
 1980                         }
 1981                         break;
 1982                 }
 1983         case SCTP_DELAYED_SACK:
 1984                 {
 1985                         struct sctp_sack_info *sack;
 1986 
 1987                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 1988                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 1989                         if (stcb) {
 1990                                 sack->sack_delay = stcb->asoc.delayed_ack;
 1991                                 sack->sack_freq = stcb->asoc.sack_freq;
 1992                                 SCTP_TCB_UNLOCK(stcb);
 1993                         } else {
 1994                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1995                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1996                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
 1997                                         SCTP_INP_RLOCK(inp);
 1998                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 1999                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 2000                                         SCTP_INP_RUNLOCK(inp);
 2001                                 } else {
 2002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2003                                         error = EINVAL;
 2004                                 }
 2005                         }
 2006                         if (error == 0) {
 2007                                 *optsize = sizeof(struct sctp_sack_info);
 2008                         }
 2009                         break;
 2010                 }
 2011         case SCTP_GET_SNDBUF_USE:
 2012                 {
 2013                         struct sctp_sockstat *ss;
 2014 
 2015                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 2016                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 2017 
 2018                         if (stcb) {
 2019                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 2020                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 2021                                     stcb->asoc.size_on_all_streams);
 2022                                 SCTP_TCB_UNLOCK(stcb);
 2023                                 *optsize = sizeof(struct sctp_sockstat);
 2024                         } else {
 2025                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2026                                 error = ENOTCONN;
 2027                         }
 2028                         break;
 2029                 }
 2030         case SCTP_MAX_BURST:
 2031                 {
 2032                         struct sctp_assoc_value *av;
 2033 
 2034                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2035                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2036 
 2037                         if (stcb) {
 2038                                 av->assoc_value = stcb->asoc.max_burst;
 2039                                 SCTP_TCB_UNLOCK(stcb);
 2040                         } else {
 2041                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2042                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2043                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2044                                         SCTP_INP_RLOCK(inp);
 2045                                         av->assoc_value = inp->sctp_ep.max_burst;
 2046                                         SCTP_INP_RUNLOCK(inp);
 2047                                 } else {
 2048                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2049                                         error = EINVAL;
 2050                                 }
 2051                         }
 2052                         if (error == 0) {
 2053                                 *optsize = sizeof(struct sctp_assoc_value);
 2054                         }
 2055                         break;
 2056                 }
 2057         case SCTP_MAXSEG:
 2058                 {
 2059                         struct sctp_assoc_value *av;
 2060                         int ovh;
 2061 
 2062                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2063                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2064 
 2065                         if (stcb) {
 2066                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 2067                                 SCTP_TCB_UNLOCK(stcb);
 2068                         } else {
 2069                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2070                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2071                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2072                                         SCTP_INP_RLOCK(inp);
 2073                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2074                                                 ovh = SCTP_MED_OVERHEAD;
 2075                                         } else {
 2076                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2077                                         }
 2078                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 2079                                                 av->assoc_value = 0;
 2080                                         else
 2081                                                 av->assoc_value = inp->sctp_frag_point - ovh;
 2082                                         SCTP_INP_RUNLOCK(inp);
 2083                                 } else {
 2084                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2085                                         error = EINVAL;
 2086                                 }
 2087                         }
 2088                         if (error == 0) {
 2089                                 *optsize = sizeof(struct sctp_assoc_value);
 2090                         }
 2091                         break;
 2092                 }
 2093         case SCTP_GET_STAT_LOG:
 2094                 error = sctp_fill_stat_log(optval, optsize);
 2095                 break;
 2096         case SCTP_EVENTS:
 2097                 {
 2098                         struct sctp_event_subscribe *events;
 2099 
 2100                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 2101                         memset(events, 0, sizeof(struct sctp_event_subscribe));
 2102                         SCTP_INP_RLOCK(inp);
 2103                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 2104                                 events->sctp_data_io_event = 1;
 2105 
 2106                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 2107                                 events->sctp_association_event = 1;
 2108 
 2109                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 2110                                 events->sctp_address_event = 1;
 2111 
 2112                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 2113                                 events->sctp_send_failure_event = 1;
 2114 
 2115                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 2116                                 events->sctp_peer_error_event = 1;
 2117 
 2118                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 2119                                 events->sctp_shutdown_event = 1;
 2120 
 2121                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 2122                                 events->sctp_partial_delivery_event = 1;
 2123 
 2124                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2125                                 events->sctp_adaptation_layer_event = 1;
 2126 
 2127                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2128                                 events->sctp_authentication_event = 1;
 2129 
 2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2131                                 events->sctp_sender_dry_event = 1;
 2132 
 2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2134                                 events->sctp_stream_reset_event = 1;
 2135                         SCTP_INP_RUNLOCK(inp);
 2136                         *optsize = sizeof(struct sctp_event_subscribe);
 2137                         break;
 2138                 }
 2139         case SCTP_ADAPTATION_LAYER:
 2140                 {
 2141                         uint32_t *value;
 2142 
 2143                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2144 
 2145                         SCTP_INP_RLOCK(inp);
 2146                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2147                         SCTP_INP_RUNLOCK(inp);
 2148                         *optsize = sizeof(uint32_t);
 2149                         break;
 2150                 }
 2151         case SCTP_SET_INITIAL_DBG_SEQ:
 2152                 {
 2153                         uint32_t *value;
 2154 
 2155                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2156                         SCTP_INP_RLOCK(inp);
 2157                         *value = inp->sctp_ep.initial_sequence_debug;
 2158                         SCTP_INP_RUNLOCK(inp);
 2159                         *optsize = sizeof(uint32_t);
 2160                         break;
 2161                 }
 2162         case SCTP_GET_LOCAL_ADDR_SIZE:
 2163                 {
 2164                         uint32_t *value;
 2165 
 2166                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2167                         SCTP_INP_RLOCK(inp);
 2168                         *value = sctp_count_max_addresses(inp);
 2169                         SCTP_INP_RUNLOCK(inp);
 2170                         *optsize = sizeof(uint32_t);
 2171                         break;
 2172                 }
 2173         case SCTP_GET_REMOTE_ADDR_SIZE:
 2174                 {
 2175                         uint32_t *value;
 2176                         size_t size;
 2177                         struct sctp_nets *net;
 2178 
 2179                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2180                         /* FIXME MT: change to sctp_assoc_value? */
 2181                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
 2182 
 2183                         if (stcb) {
 2184                                 size = 0;
 2185                                 /* Count the sizes */
 2186                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2187                                         switch (net->ro._l_addr.sa.sa_family) {
 2188 #ifdef INET
 2189                                         case AF_INET:
 2190 #ifdef INET6
 2191                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2192                                                         size += sizeof(struct sockaddr_in6);
 2193                                                 } else {
 2194                                                         size += sizeof(struct sockaddr_in);
 2195                                                 }
 2196 #else
 2197                                                 size += sizeof(struct sockaddr_in);
 2198 #endif
 2199                                                 break;
 2200 #endif
 2201 #ifdef INET6
 2202                                         case AF_INET6:
 2203                                                 size += sizeof(struct sockaddr_in6);
 2204                                                 break;
 2205 #endif
 2206                                         default:
 2207                                                 break;
 2208                                         }
 2209                                 }
 2210                                 SCTP_TCB_UNLOCK(stcb);
 2211                                 *value = (uint32_t)size;
 2212                                 *optsize = sizeof(uint32_t);
 2213                         } else {
 2214                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2215                                 error = ENOTCONN;
 2216                         }
 2217                         break;
 2218                 }
 2219         case SCTP_GET_PEER_ADDRESSES:
 2220                 /*
 2221                  * Get the address information, an array is passed in to
 2222                  * fill up we pack it.
 2223                  */
 2224                 {
 2225                         size_t cpsz, left;
 2226                         struct sockaddr_storage *sas;
 2227                         struct sctp_nets *net;
 2228                         struct sctp_getaddresses *saddr;
 2229 
 2230                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2231                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2232 
 2233                         if (stcb) {
 2234                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
 2235                                 *optsize = sizeof(struct sctp_getaddresses);
 2236                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2237 
 2238                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2239                                         switch (net->ro._l_addr.sa.sa_family) {
 2240 #ifdef INET
 2241                                         case AF_INET:
 2242 #ifdef INET6
 2243                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2244                                                         cpsz = sizeof(struct sockaddr_in6);
 2245                                                 } else {
 2246                                                         cpsz = sizeof(struct sockaddr_in);
 2247                                                 }
 2248 #else
 2249                                                 cpsz = sizeof(struct sockaddr_in);
 2250 #endif
 2251                                                 break;
 2252 #endif
 2253 #ifdef INET6
 2254                                         case AF_INET6:
 2255                                                 cpsz = sizeof(struct sockaddr_in6);
 2256                                                 break;
 2257 #endif
 2258                                         default:
 2259                                                 cpsz = 0;
 2260                                                 break;
 2261                                         }
 2262                                         if (cpsz == 0) {
 2263                                                 break;
 2264                                         }
 2265                                         if (left < cpsz) {
 2266                                                 /* not enough room. */
 2267                                                 break;
 2268                                         }
 2269 #if defined(INET) && defined(INET6)
 2270                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2271                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
 2272                                                 /* Must map the address */
 2273                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
 2274                                                     (struct sockaddr_in6 *)sas);
 2275                                         } else {
 2276                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2277                                         }
 2278 #else
 2279                                         memcpy(sas, &net->ro._l_addr, cpsz);
 2280 #endif
 2281                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2282 
 2283                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2284                                         left -= cpsz;
 2285                                         *optsize += cpsz;
 2286                                 }
 2287                                 SCTP_TCB_UNLOCK(stcb);
 2288                         } else {
 2289                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2290                                 error = ENOENT;
 2291                         }
 2292                         break;
 2293                 }
 2294         case SCTP_GET_LOCAL_ADDRESSES:
 2295                 {
 2296                         size_t limit, actual;
 2297                         struct sockaddr_storage *sas;
 2298                         struct sctp_getaddresses *saddr;
 2299 
 2300                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2301                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2302 
 2303                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2304                         limit = *optsize - sizeof(sctp_assoc_t);
 2305                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2306                         if (stcb) {
 2307                                 SCTP_TCB_UNLOCK(stcb);
 2308                         }
 2309                         *optsize = sizeof(struct sockaddr_storage) + actual;
 2310                         break;
 2311                 }
 2312         case SCTP_PEER_ADDR_PARAMS:
 2313                 {
 2314                         struct sctp_paddrparams *paddrp;
 2315                         struct sctp_nets *net;
 2316                         struct sockaddr *addr;
 2317 #if defined(INET) && defined(INET6)
 2318                         struct sockaddr_in sin_store;
 2319 #endif
 2320 
 2321                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2322                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2323 
 2324 #if defined(INET) && defined(INET6)
 2325                         if (paddrp->spp_address.ss_family == AF_INET6) {
 2326                                 struct sockaddr_in6 *sin6;
 2327 
 2328                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 2329                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2330                                         in6_sin6_2_sin(&sin_store, sin6);
 2331                                         addr = (struct sockaddr *)&sin_store;
 2332                                 } else {
 2333                                         addr = (struct sockaddr *)&paddrp->spp_address;
 2334                                 }
 2335                         } else {
 2336                                 addr = (struct sockaddr *)&paddrp->spp_address;
 2337                         }
 2338 #else
 2339                         addr = (struct sockaddr *)&paddrp->spp_address;
 2340 #endif
 2341                         if (stcb != NULL) {
 2342                                 net = sctp_findnet(stcb, addr);
 2343                         } else {
 2344                                 /*
 2345                                  * We increment here since
 2346                                  * sctp_findassociation_ep_addr() wil do a
 2347                                  * decrement if it finds the stcb as long as
 2348                                  * the locked tcb (last argument) is NOT a
 2349                                  * TCB.. aka NULL.
 2350                                  */
 2351                                 net = NULL;
 2352                                 SCTP_INP_INCR_REF(inp);
 2353                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2354                                 if (stcb == NULL) {
 2355                                         SCTP_INP_DECR_REF(inp);
 2356                                 }
 2357                         }
 2358                         if ((stcb != NULL) && (net == NULL)) {
 2359 #ifdef INET
 2360                                 if (addr->sa_family == AF_INET) {
 2361                                         struct sockaddr_in *sin;
 2362 
 2363                                         sin = (struct sockaddr_in *)addr;
 2364                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 2365                                                 error = EINVAL;
 2366                                                 SCTP_TCB_UNLOCK(stcb);
 2367                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2368                                                 break;
 2369                                         }
 2370                                 } else
 2371 #endif
 2372 #ifdef INET6
 2373                                 if (addr->sa_family == AF_INET6) {
 2374                                         struct sockaddr_in6 *sin6;
 2375 
 2376                                         sin6 = (struct sockaddr_in6 *)addr;
 2377                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2378                                                 error = EINVAL;
 2379                                                 SCTP_TCB_UNLOCK(stcb);
 2380                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2381                                                 break;
 2382                                         }
 2383                                 } else
 2384 #endif
 2385                                 {
 2386                                         error = EAFNOSUPPORT;
 2387                                         SCTP_TCB_UNLOCK(stcb);
 2388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2389                                         break;
 2390                                 }
 2391                         }
 2392                         if (stcb != NULL) {
 2393                                 /* Applies to the specific association */
 2394                                 paddrp->spp_flags = 0;
 2395                                 if (net != NULL) {
 2396                                         paddrp->spp_hbinterval = net->heart_beat_delay;
 2397                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2398                                         paddrp->spp_pathmtu = net->mtu;
 2399                                         switch (net->ro._l_addr.sa.sa_family) {
 2400 #ifdef INET
 2401                                         case AF_INET:
 2402                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
 2403                                                 break;
 2404 #endif
 2405 #ifdef INET6
 2406                                         case AF_INET6:
 2407                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
 2408                                                 break;
 2409 #endif
 2410                                         default:
 2411                                                 break;
 2412                                         }
 2413                                         /* get flags for HB */
 2414                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 2415                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2416                                         } else {
 2417                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2418                                         }
 2419                                         /* get flags for PMTU */
 2420                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 2421                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2422                                         } else {
 2423                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2424                                         }
 2425                                         if (net->dscp & 0x01) {
 2426                                                 paddrp->spp_dscp = net->dscp & 0xfc;
 2427                                                 paddrp->spp_flags |= SPP_DSCP;
 2428                                         }
 2429 #ifdef INET6
 2430                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
 2431                                             (net->flowlabel & 0x80000000)) {
 2432                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
 2433                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2434                                         }
 2435 #endif
 2436                                 } else {
 2437                                         /*
 2438                                          * No destination so return default
 2439                                          * value
 2440                                          */
 2441                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2442                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
 2443                                         if (stcb->asoc.default_dscp & 0x01) {
 2444                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
 2445                                                 paddrp->spp_flags |= SPP_DSCP;
 2446                                         }
 2447 #ifdef INET6
 2448                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
 2449                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
 2450                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2451                                         }
 2452 #endif
 2453                                         /* default settings should be these */
 2454                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2455                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2456                                         } else {
 2457                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2458                                         }
 2459                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2460                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2461                                         } else {
 2462                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2463                                         }
 2464                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2465                                 }
 2466                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2467                                 SCTP_TCB_UNLOCK(stcb);
 2468                         } else {
 2469                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2470                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2471                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 2472                                         /* Use endpoint defaults */
 2473                                         SCTP_INP_RLOCK(inp);
 2474                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2475                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2476                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
 2477                                         /* get inp's default */
 2478                                         if (inp->sctp_ep.default_dscp & 0x01) {
 2479                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
 2480                                                 paddrp->spp_flags |= SPP_DSCP;
 2481                                         }
 2482 #ifdef INET6
 2483                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 2484                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
 2485                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
 2486                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2487                                         }
 2488 #endif
 2489                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
 2490 
 2491                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2492                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2493                                         } else {
 2494                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2495                                         }
 2496                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2497                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2498                                         } else {
 2499                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2500                                         }
 2501                                         SCTP_INP_RUNLOCK(inp);
 2502                                 } else {
 2503                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2504                                         error = EINVAL;
 2505                                 }
 2506                         }
 2507                         if (error == 0) {
 2508                                 *optsize = sizeof(struct sctp_paddrparams);
 2509                         }
 2510                         break;
 2511                 }
 2512         case SCTP_GET_PEER_ADDR_INFO:
 2513                 {
 2514                         struct sctp_paddrinfo *paddri;
 2515                         struct sctp_nets *net;
 2516                         struct sockaddr *addr;
 2517 #if defined(INET) && defined(INET6)
 2518                         struct sockaddr_in sin_store;
 2519 #endif
 2520 
 2521                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2522                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2523 
 2524 #if defined(INET) && defined(INET6)
 2525                         if (paddri->spinfo_address.ss_family == AF_INET6) {
 2526                                 struct sockaddr_in6 *sin6;
 2527 
 2528                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
 2529                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 2530                                         in6_sin6_2_sin(&sin_store, sin6);
 2531                                         addr = (struct sockaddr *)&sin_store;
 2532                                 } else {
 2533                                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2534                                 }
 2535                         } else {
 2536                                 addr = (struct sockaddr *)&paddri->spinfo_address;
 2537                         }
 2538 #else
 2539                         addr = (struct sockaddr *)&paddri->spinfo_address;
 2540 #endif
 2541                         if (stcb != NULL) {
 2542                                 net = sctp_findnet(stcb, addr);
 2543                         } else {
 2544                                 /*
 2545                                  * We increment here since
 2546                                  * sctp_findassociation_ep_addr() wil do a
 2547                                  * decrement if it finds the stcb as long as
 2548                                  * the locked tcb (last argument) is NOT a
 2549                                  * TCB.. aka NULL.
 2550                                  */
 2551                                 net = NULL;
 2552                                 SCTP_INP_INCR_REF(inp);
 2553                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 2554                                 if (stcb == NULL) {
 2555                                         SCTP_INP_DECR_REF(inp);
 2556                                 }
 2557                         }
 2558 
 2559                         if ((stcb != NULL) && (net != NULL)) {
 2560                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2561                                         /* It's unconfirmed */
 2562                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
 2563                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2564                                         /* It's active */
 2565                                         paddri->spinfo_state = SCTP_ACTIVE;
 2566                                 } else {
 2567                                         /* It's inactive */
 2568                                         paddri->spinfo_state = SCTP_INACTIVE;
 2569                                 }
 2570                                 paddri->spinfo_cwnd = net->cwnd;
 2571                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2572                                 paddri->spinfo_rto = net->RTO;
 2573                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2574                                 paddri->spinfo_mtu = net->mtu;
 2575                                 switch (addr->sa_family) {
 2576 #if defined(INET)
 2577                                 case AF_INET:
 2578                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2579                                         break;
 2580 #endif
 2581 #if defined(INET6)
 2582                                 case AF_INET6:
 2583                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2584                                         break;
 2585 #endif
 2586                                 default:
 2587                                         break;
 2588                                 }
 2589                                 SCTP_TCB_UNLOCK(stcb);
 2590                                 *optsize = sizeof(struct sctp_paddrinfo);
 2591                         } else {
 2592                                 if (stcb != NULL) {
 2593                                         SCTP_TCB_UNLOCK(stcb);
 2594                                 }
 2595                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2596                                 error = ENOENT;
 2597                         }
 2598                         break;
 2599                 }
 2600         case SCTP_PCB_STATUS:
 2601                 {
 2602                         struct sctp_pcbinfo *spcb;
 2603 
 2604                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2605                         sctp_fill_pcbinfo(spcb);
 2606                         *optsize = sizeof(struct sctp_pcbinfo);
 2607                         break;
 2608                 }
 2609         case SCTP_STATUS:
 2610                 {
 2611                         struct sctp_nets *net;
 2612                         struct sctp_status *sstat;
 2613 
 2614                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2615                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2616 
 2617                         if (stcb == NULL) {
 2618                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2619                                 error = EINVAL;
 2620                                 break;
 2621                         }
 2622                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
 2623                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2624                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2625                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2626                         /*
 2627                          * We can't include chunks that have been passed to
 2628                          * the socket layer. Only things in queue.
 2629                          */
 2630                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2631                             stcb->asoc.cnt_on_all_streams);
 2632 
 2633 
 2634                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2635                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2636                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2637                         memcpy(&sstat->sstat_primary.spinfo_address,
 2638                             &stcb->asoc.primary_destination->ro._l_addr,
 2639                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2640                         net = stcb->asoc.primary_destination;
 2641                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2642                         /*
 2643                          * Again the user can get info from sctp_constants.h
 2644                          * for what the state of the network is.
 2645                          */
 2646                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2647                                 /* It's unconfirmed */
 2648                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
 2649                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2650                                 /* It's active */
 2651                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
 2652                         } else {
 2653                                 /* It's inactive */
 2654                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
 2655                         }
 2656                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2657                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2658                         sstat->sstat_primary.spinfo_rto = net->RTO;
 2659                         sstat->sstat_primary.spinfo_mtu = net->mtu;
 2660                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
 2661 #if defined(INET)
 2662                         case AF_INET:
 2663                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
 2664                                 break;
 2665 #endif
 2666 #if defined(INET6)
 2667                         case AF_INET6:
 2668                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
 2669                                 break;
 2670 #endif
 2671                         default:
 2672                                 break;
 2673                         }
 2674                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2675                         SCTP_TCB_UNLOCK(stcb);
 2676                         *optsize = sizeof(struct sctp_status);
 2677                         break;
 2678                 }
 2679         case SCTP_RTOINFO:
 2680                 {
 2681                         struct sctp_rtoinfo *srto;
 2682 
 2683                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2684                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2685 
 2686                         if (stcb) {
 2687                                 srto->srto_initial = stcb->asoc.initial_rto;
 2688                                 srto->srto_max = stcb->asoc.maxrto;
 2689                                 srto->srto_min = stcb->asoc.minrto;
 2690                                 SCTP_TCB_UNLOCK(stcb);
 2691                         } else {
 2692                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2693                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2694                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 2695                                         SCTP_INP_RLOCK(inp);
 2696                                         srto->srto_initial = inp->sctp_ep.initial_rto;
 2697                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2698                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
 2699                                         SCTP_INP_RUNLOCK(inp);
 2700                                 } else {
 2701                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2702                                         error = EINVAL;
 2703                                 }
 2704                         }
 2705                         if (error == 0) {
 2706                                 *optsize = sizeof(struct sctp_rtoinfo);
 2707                         }
 2708                         break;
 2709                 }
 2710         case SCTP_TIMEOUTS:
 2711                 {
 2712                         struct sctp_timeouts *stimo;
 2713 
 2714                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
 2715                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
 2716 
 2717                         if (stcb) {
 2718                                 stimo->stimo_init = stcb->asoc.timoinit;
 2719                                 stimo->stimo_data = stcb->asoc.timodata;
 2720                                 stimo->stimo_sack = stcb->asoc.timosack;
 2721                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
 2722                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
 2723                                 stimo->stimo_cookie = stcb->asoc.timocookie;
 2724                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
 2725                                 SCTP_TCB_UNLOCK(stcb);
 2726                                 *optsize = sizeof(struct sctp_timeouts);
 2727                         } else {
 2728                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2729                                 error = EINVAL;
 2730                         }
 2731                         break;
 2732                 }
 2733         case SCTP_ASSOCINFO:
 2734                 {
 2735                         struct sctp_assocparams *sasoc;
 2736 
 2737                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2738                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2739 
 2740                         if (stcb) {
 2741                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2742                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2743                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2744                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2745                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2746                                 SCTP_TCB_UNLOCK(stcb);
 2747                         } else {
 2748                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2749                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2750                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 2751                                         SCTP_INP_RLOCK(inp);
 2752                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2753                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2754                                         sasoc->sasoc_number_peer_destinations = 0;
 2755                                         sasoc->sasoc_peer_rwnd = 0;
 2756                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2757                                         SCTP_INP_RUNLOCK(inp);
 2758                                 } else {
 2759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2760                                         error = EINVAL;
 2761                                 }
 2762                         }
 2763                         if (error == 0) {
 2764                                 *optsize = sizeof(struct sctp_assocparams);
 2765                         }
 2766                         break;
 2767                 }
 2768         case SCTP_DEFAULT_SEND_PARAM:
 2769                 {
 2770                         struct sctp_sndrcvinfo *s_info;
 2771 
 2772                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2773                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2774 
 2775                         if (stcb) {
 2776                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2777                                 SCTP_TCB_UNLOCK(stcb);
 2778                         } else {
 2779                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2780                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2781                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
 2782                                         SCTP_INP_RLOCK(inp);
 2783                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2784                                         SCTP_INP_RUNLOCK(inp);
 2785                                 } else {
 2786                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2787                                         error = EINVAL;
 2788                                 }
 2789                         }
 2790                         if (error == 0) {
 2791                                 *optsize = sizeof(struct sctp_sndrcvinfo);
 2792                         }
 2793                         break;
 2794                 }
 2795         case SCTP_INITMSG:
 2796                 {
 2797                         struct sctp_initmsg *sinit;
 2798 
 2799                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2800                         SCTP_INP_RLOCK(inp);
 2801                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2802                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2803                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2804                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2805                         SCTP_INP_RUNLOCK(inp);
 2806                         *optsize = sizeof(struct sctp_initmsg);
 2807                         break;
 2808                 }
 2809         case SCTP_PRIMARY_ADDR:
 2810                 /* we allow a "get" operation on this */
 2811                 {
 2812                         struct sctp_setprim *ssp;
 2813 
 2814                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2815                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2816 
 2817                         if (stcb) {
 2818                                 union sctp_sockstore *addr;
 2819 
 2820                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
 2821                                 switch (addr->sa.sa_family) {
 2822 #ifdef INET
 2823                                 case AF_INET:
 2824 #ifdef INET6
 2825                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2826                                                 in6_sin_2_v4mapsin6(&addr->sin,
 2827                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
 2828                                         } else {
 2829                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2830                                         }
 2831 #else
 2832                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
 2833 #endif
 2834                                         break;
 2835 #endif
 2836 #ifdef INET6
 2837                                 case AF_INET6:
 2838                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
 2839                                         break;
 2840 #endif
 2841                                 default:
 2842                                         break;
 2843                                 }
 2844                                 SCTP_TCB_UNLOCK(stcb);
 2845                                 *optsize = sizeof(struct sctp_setprim);
 2846                         } else {
 2847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2848                                 error = EINVAL;
 2849                         }
 2850                         break;
 2851                 }
 2852         case SCTP_HMAC_IDENT:
 2853                 {
 2854                         struct sctp_hmacalgo *shmac;
 2855                         sctp_hmaclist_t *hmaclist;
 2856                         uint32_t size;
 2857                         int i;
 2858 
 2859                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2860 
 2861                         SCTP_INP_RLOCK(inp);
 2862                         hmaclist = inp->sctp_ep.local_hmacs;
 2863                         if (hmaclist == NULL) {
 2864                                 /* no HMACs to return */
 2865                                 *optsize = sizeof(*shmac);
 2866                                 SCTP_INP_RUNLOCK(inp);
 2867                                 break;
 2868                         }
 2869                         /* is there room for all of the hmac ids? */
 2870                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2871                             sizeof(shmac->shmac_idents[0]));
 2872                         if ((size_t)(*optsize) < size) {
 2873                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2874                                 error = EINVAL;
 2875                                 SCTP_INP_RUNLOCK(inp);
 2876                                 break;
 2877                         }
 2878                         /* copy in the list */
 2879                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2880                         for (i = 0; i < hmaclist->num_algo; i++) {
 2881                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2882                         }
 2883                         SCTP_INP_RUNLOCK(inp);
 2884                         *optsize = size;
 2885                         break;
 2886                 }
 2887         case SCTP_AUTH_ACTIVE_KEY:
 2888                 {
 2889                         struct sctp_authkeyid *scact;
 2890 
 2891                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2892                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2893 
 2894                         if (stcb) {
 2895                                 /* get the active key on the assoc */
 2896                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2897                                 SCTP_TCB_UNLOCK(stcb);
 2898                         } else {
 2899                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2900                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2901                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
 2902                                         /* get the endpoint active key */
 2903                                         SCTP_INP_RLOCK(inp);
 2904                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2905                                         SCTP_INP_RUNLOCK(inp);
 2906                                 } else {
 2907                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2908                                         error = EINVAL;
 2909                                 }
 2910                         }
 2911                         if (error == 0) {
 2912                                 *optsize = sizeof(struct sctp_authkeyid);
 2913                         }
 2914                         break;
 2915                 }
 2916         case SCTP_LOCAL_AUTH_CHUNKS:
 2917                 {
 2918                         struct sctp_authchunks *sac;
 2919                         sctp_auth_chklist_t *chklist = NULL;
 2920                         size_t size = 0;
 2921 
 2922                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2923                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2924 
 2925                         if (stcb) {
 2926                                 /* get off the assoc */
 2927                                 chklist = stcb->asoc.local_auth_chunks;
 2928                                 /* is there enough space? */
 2929                                 size = sctp_auth_get_chklist_size(chklist);
 2930                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2931                                         error = EINVAL;
 2932                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2933                                 } else {
 2934                                         /* copy in the chunks */
 2935                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2936                                         sac->gauth_number_of_chunks = (uint32_t)size;
 2937                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2938                                 }
 2939                                 SCTP_TCB_UNLOCK(stcb);
 2940                         } else {
 2941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2942                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2943                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
 2944                                         /* get off the endpoint */
 2945                                         SCTP_INP_RLOCK(inp);
 2946                                         chklist = inp->sctp_ep.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_INP_RUNLOCK(inp);
 2959                                 } else {
 2960                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2961                                         error = EINVAL;
 2962                                 }
 2963                         }
 2964                         break;
 2965                 }
 2966         case SCTP_PEER_AUTH_CHUNKS:
 2967                 {
 2968                         struct sctp_authchunks *sac;
 2969                         sctp_auth_chklist_t *chklist = NULL;
 2970                         size_t size = 0;
 2971 
 2972                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2973                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2974 
 2975                         if (stcb) {
 2976                                 /* get off the assoc */
 2977                                 chklist = stcb->asoc.peer_auth_chunks;
 2978                                 /* is there enough space? */
 2979                                 size = sctp_auth_get_chklist_size(chklist);
 2980                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2981                                         error = EINVAL;
 2982                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2983                                 } else {
 2984                                         /* copy in the chunks */
 2985                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2986                                         sac->gauth_number_of_chunks = (uint32_t)size;
 2987                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2988                                 }
 2989                                 SCTP_TCB_UNLOCK(stcb);
 2990                         } else {
 2991                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2992                                 error = ENOENT;
 2993                         }
 2994                         break;
 2995                 }
 2996         case SCTP_EVENT:
 2997                 {
 2998                         struct sctp_event *event;
 2999                         uint32_t event_type;
 3000 
 3001                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
 3002                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 3003 
 3004                         switch (event->se_type) {
 3005                         case SCTP_ASSOC_CHANGE:
 3006                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 3007                                 break;
 3008                         case SCTP_PEER_ADDR_CHANGE:
 3009                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 3010                                 break;
 3011                         case SCTP_REMOTE_ERROR:
 3012                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 3013                                 break;
 3014                         case SCTP_SEND_FAILED:
 3015                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 3016                                 break;
 3017                         case SCTP_SHUTDOWN_EVENT:
 3018                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 3019                                 break;
 3020                         case SCTP_ADAPTATION_INDICATION:
 3021                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 3022                                 break;
 3023                         case SCTP_PARTIAL_DELIVERY_EVENT:
 3024                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 3025                                 break;
 3026                         case SCTP_AUTHENTICATION_EVENT:
 3027                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 3028                                 break;
 3029                         case SCTP_STREAM_RESET_EVENT:
 3030                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 3031                                 break;
 3032                         case SCTP_SENDER_DRY_EVENT:
 3033                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 3034                                 break;
 3035                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 3036                                 event_type = 0;
 3037                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 3038                                 error = ENOTSUP;
 3039                                 break;
 3040                         case SCTP_ASSOC_RESET_EVENT:
 3041                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 3042                                 break;
 3043                         case SCTP_STREAM_CHANGE_EVENT:
 3044                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 3045                                 break;
 3046                         case SCTP_SEND_FAILED_EVENT:
 3047                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 3048                                 break;
 3049                         default:
 3050                                 event_type = 0;
 3051                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3052                                 error = EINVAL;
 3053                                 break;
 3054                         }
 3055                         if (event_type > 0) {
 3056                                 if (stcb) {
 3057                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
 3058                                 } else {
 3059                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3060                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3061                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
 3062                                                 SCTP_INP_RLOCK(inp);
 3063                                                 event->se_on = sctp_is_feature_on(inp, event_type);
 3064                                                 SCTP_INP_RUNLOCK(inp);
 3065                                         } else {
 3066                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3067                                                 error = EINVAL;
 3068                                         }
 3069                                 }
 3070                         }
 3071                         if (stcb != NULL) {
 3072                                 SCTP_TCB_UNLOCK(stcb);
 3073                         }
 3074                         if (error == 0) {
 3075                                 *optsize = sizeof(struct sctp_event);
 3076                         }
 3077                         break;
 3078                 }
 3079         case SCTP_RECVRCVINFO:
 3080                 {
 3081                         int onoff;
 3082 
 3083                         if (*optsize < sizeof(int)) {
 3084                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3085                                 error = EINVAL;
 3086                         } else {
 3087                                 SCTP_INP_RLOCK(inp);
 3088                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 3089                                 SCTP_INP_RUNLOCK(inp);
 3090                         }
 3091                         if (error == 0) {
 3092                                 /* return the option value */
 3093                                 *(int *)optval = onoff;
 3094                                 *optsize = sizeof(int);
 3095                         }
 3096                         break;
 3097                 }
 3098         case SCTP_RECVNXTINFO:
 3099                 {
 3100                         int onoff;
 3101 
 3102                         if (*optsize < sizeof(int)) {
 3103                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3104                                 error = EINVAL;
 3105                         } else {
 3106                                 SCTP_INP_RLOCK(inp);
 3107                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 3108                                 SCTP_INP_RUNLOCK(inp);
 3109                         }
 3110                         if (error == 0) {
 3111                                 /* return the option value */
 3112                                 *(int *)optval = onoff;
 3113                                 *optsize = sizeof(int);
 3114                         }
 3115                         break;
 3116                 }
 3117         case SCTP_DEFAULT_SNDINFO:
 3118                 {
 3119                         struct sctp_sndinfo *info;
 3120 
 3121                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
 3122                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 3123 
 3124                         if (stcb) {
 3125                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
 3126                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
 3127                                 info->snd_flags &= 0xfff0;
 3128                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
 3129                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
 3130                                 SCTP_TCB_UNLOCK(stcb);
 3131                         } else {
 3132                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3133                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3134                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
 3135                                         SCTP_INP_RLOCK(inp);
 3136                                         info->snd_sid = inp->def_send.sinfo_stream;
 3137                                         info->snd_flags = inp->def_send.sinfo_flags;
 3138                                         info->snd_flags &= 0xfff0;
 3139                                         info->snd_ppid = inp->def_send.sinfo_ppid;
 3140                                         info->snd_context = inp->def_send.sinfo_context;
 3141                                         SCTP_INP_RUNLOCK(inp);
 3142                                 } else {
 3143                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3144                                         error = EINVAL;
 3145                                 }
 3146                         }
 3147                         if (error == 0) {
 3148                                 *optsize = sizeof(struct sctp_sndinfo);
 3149                         }
 3150                         break;
 3151                 }
 3152         case SCTP_DEFAULT_PRINFO:
 3153                 {
 3154                         struct sctp_default_prinfo *info;
 3155 
 3156                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
 3157                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 3158 
 3159                         if (stcb) {
 3160                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 3161                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
 3162                                 SCTP_TCB_UNLOCK(stcb);
 3163                         } else {
 3164                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3165                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3166                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
 3167                                         SCTP_INP_RLOCK(inp);
 3168                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 3169                                         info->pr_value = inp->def_send.sinfo_timetolive;
 3170                                         SCTP_INP_RUNLOCK(inp);
 3171                                 } else {
 3172                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3173                                         error = EINVAL;
 3174                                 }
 3175                         }
 3176                         if (error == 0) {
 3177                                 *optsize = sizeof(struct sctp_default_prinfo);
 3178                         }
 3179                         break;
 3180                 }
 3181         case SCTP_PEER_ADDR_THLDS:
 3182                 {
 3183                         struct sctp_paddrthlds *thlds;
 3184                         struct sctp_nets *net;
 3185                         struct sockaddr *addr;
 3186 #if defined(INET) && defined(INET6)
 3187                         struct sockaddr_in sin_store;
 3188 #endif
 3189 
 3190                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 3191                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 3192 
 3193 #if defined(INET) && defined(INET6)
 3194                         if (thlds->spt_address.ss_family == AF_INET6) {
 3195                                 struct sockaddr_in6 *sin6;
 3196 
 3197                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
 3198                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3199                                         in6_sin6_2_sin(&sin_store, sin6);
 3200                                         addr = (struct sockaddr *)&sin_store;
 3201                                 } else {
 3202                                         addr = (struct sockaddr *)&thlds->spt_address;
 3203                                 }
 3204                         } else {
 3205                                 addr = (struct sockaddr *)&thlds->spt_address;
 3206                         }
 3207 #else
 3208                         addr = (struct sockaddr *)&thlds->spt_address;
 3209 #endif
 3210                         if (stcb != NULL) {
 3211                                 net = sctp_findnet(stcb, addr);
 3212                         } else {
 3213                                 /*
 3214                                  * We increment here since
 3215                                  * sctp_findassociation_ep_addr() wil do a
 3216                                  * decrement if it finds the stcb as long as
 3217                                  * the locked tcb (last argument) is NOT a
 3218                                  * TCB.. aka NULL.
 3219                                  */
 3220                                 net = NULL;
 3221                                 SCTP_INP_INCR_REF(inp);
 3222                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3223                                 if (stcb == NULL) {
 3224                                         SCTP_INP_DECR_REF(inp);
 3225                                 }
 3226                         }
 3227                         if ((stcb != NULL) && (net == NULL)) {
 3228 #ifdef INET
 3229                                 if (addr->sa_family == AF_INET) {
 3230                                         struct sockaddr_in *sin;
 3231 
 3232                                         sin = (struct sockaddr_in *)addr;
 3233                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3234                                                 error = EINVAL;
 3235                                                 SCTP_TCB_UNLOCK(stcb);
 3236                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3237                                                 break;
 3238                                         }
 3239                                 } else
 3240 #endif
 3241 #ifdef INET6
 3242                                 if (addr->sa_family == AF_INET6) {
 3243                                         struct sockaddr_in6 *sin6;
 3244 
 3245                                         sin6 = (struct sockaddr_in6 *)addr;
 3246                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3247                                                 error = EINVAL;
 3248                                                 SCTP_TCB_UNLOCK(stcb);
 3249                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3250                                                 break;
 3251                                         }
 3252                                 } else
 3253 #endif
 3254                                 {
 3255                                         error = EAFNOSUPPORT;
 3256                                         SCTP_TCB_UNLOCK(stcb);
 3257                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3258                                         break;
 3259                                 }
 3260                         }
 3261                         if (stcb != NULL) {
 3262                                 if (net != NULL) {
 3263                                         thlds->spt_pathmaxrxt = net->failure_threshold;
 3264                                         thlds->spt_pathpfthld = net->pf_threshold;
 3265                                         thlds->spt_pathcpthld = 0xffff;
 3266                                 } else {
 3267                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 3268                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 3269                                         thlds->spt_pathcpthld = 0xffff;
 3270                                 }
 3271                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
 3272                                 SCTP_TCB_UNLOCK(stcb);
 3273                         } else {
 3274                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3275                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3276                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 3277                                         /* Use endpoint defaults */
 3278                                         SCTP_INP_RLOCK(inp);
 3279                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
 3280                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
 3281                                         thlds->spt_pathcpthld = 0xffff;
 3282                                         SCTP_INP_RUNLOCK(inp);
 3283                                 } else {
 3284                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3285                                         error = EINVAL;
 3286                                 }
 3287                         }
 3288                         if (error == 0) {
 3289                                 *optsize = sizeof(struct sctp_paddrthlds);
 3290                         }
 3291                         break;
 3292                 }
 3293         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 3294                 {
 3295                         struct sctp_udpencaps *encaps;
 3296                         struct sctp_nets *net;
 3297                         struct sockaddr *addr;
 3298 #if defined(INET) && defined(INET6)
 3299                         struct sockaddr_in sin_store;
 3300 #endif
 3301 
 3302                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 3303                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 3304 
 3305 #if defined(INET) && defined(INET6)
 3306                         if (encaps->sue_address.ss_family == AF_INET6) {
 3307                                 struct sockaddr_in6 *sin6;
 3308 
 3309                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
 3310                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 3311                                         in6_sin6_2_sin(&sin_store, sin6);
 3312                                         addr = (struct sockaddr *)&sin_store;
 3313                                 } else {
 3314                                         addr = (struct sockaddr *)&encaps->sue_address;
 3315                                 }
 3316                         } else {
 3317                                 addr = (struct sockaddr *)&encaps->sue_address;
 3318                         }
 3319 #else
 3320                         addr = (struct sockaddr *)&encaps->sue_address;
 3321 #endif
 3322                         if (stcb) {
 3323                                 net = sctp_findnet(stcb, addr);
 3324                         } else {
 3325                                 /*
 3326                                  * We increment here since
 3327                                  * sctp_findassociation_ep_addr() wil do a
 3328                                  * decrement if it finds the stcb as long as
 3329                                  * the locked tcb (last argument) is NOT a
 3330                                  * TCB.. aka NULL.
 3331                                  */
 3332                                 net = NULL;
 3333                                 SCTP_INP_INCR_REF(inp);
 3334                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 3335                                 if (stcb == NULL) {
 3336                                         SCTP_INP_DECR_REF(inp);
 3337                                 }
 3338                         }
 3339                         if ((stcb != NULL) && (net == NULL)) {
 3340 #ifdef INET
 3341                                 if (addr->sa_family == AF_INET) {
 3342                                         struct sockaddr_in *sin;
 3343 
 3344                                         sin = (struct sockaddr_in *)addr;
 3345                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 3346                                                 error = EINVAL;
 3347                                                 SCTP_TCB_UNLOCK(stcb);
 3348                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3349                                                 break;
 3350                                         }
 3351                                 } else
 3352 #endif
 3353 #ifdef INET6
 3354                                 if (addr->sa_family == AF_INET6) {
 3355                                         struct sockaddr_in6 *sin6;
 3356 
 3357                                         sin6 = (struct sockaddr_in6 *)addr;
 3358                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3359                                                 error = EINVAL;
 3360                                                 SCTP_TCB_UNLOCK(stcb);
 3361                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3362                                                 break;
 3363                                         }
 3364                                 } else
 3365 #endif
 3366                                 {
 3367                                         error = EAFNOSUPPORT;
 3368                                         SCTP_TCB_UNLOCK(stcb);
 3369                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3370                                         break;
 3371                                 }
 3372                         }
 3373                         if (stcb != NULL) {
 3374                                 if (net) {
 3375                                         encaps->sue_port = net->port;
 3376                                 } else {
 3377                                         encaps->sue_port = stcb->asoc.port;
 3378                                 }
 3379                                 SCTP_TCB_UNLOCK(stcb);
 3380                         } else {
 3381                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3382                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3383                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 3384                                         SCTP_INP_RLOCK(inp);
 3385                                         encaps->sue_port = inp->sctp_ep.port;
 3386                                         SCTP_INP_RUNLOCK(inp);
 3387                                 } else {
 3388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3389                                         error = EINVAL;
 3390                                 }
 3391                         }
 3392                         if (error == 0) {
 3393                                 *optsize = sizeof(struct sctp_udpencaps);
 3394                         }
 3395                         break;
 3396                 }
 3397         case SCTP_ECN_SUPPORTED:
 3398                 {
 3399                         struct sctp_assoc_value *av;
 3400 
 3401                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3402                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3403 
 3404                         if (stcb) {
 3405                                 av->assoc_value = stcb->asoc.ecn_supported;
 3406                                 SCTP_TCB_UNLOCK(stcb);
 3407                         } else {
 3408                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3409                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3410                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3411                                         SCTP_INP_RLOCK(inp);
 3412                                         av->assoc_value = inp->ecn_supported;
 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_assoc_value);
 3421                         }
 3422                         break;
 3423                 }
 3424         case SCTP_PR_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.prsctp_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                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3438                                         SCTP_INP_RLOCK(inp);
 3439                                         av->assoc_value = inp->prsctp_supported;
 3440                                         SCTP_INP_RUNLOCK(inp);
 3441                                 } else {
 3442                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3443                                         error = EINVAL;
 3444                                 }
 3445                         }
 3446                         if (error == 0) {
 3447                                 *optsize = sizeof(struct sctp_assoc_value);
 3448                         }
 3449                         break;
 3450                 }
 3451         case SCTP_AUTH_SUPPORTED:
 3452                 {
 3453                         struct sctp_assoc_value *av;
 3454 
 3455                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3456                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3457 
 3458                         if (stcb) {
 3459                                 av->assoc_value = stcb->asoc.auth_supported;
 3460                                 SCTP_TCB_UNLOCK(stcb);
 3461                         } else {
 3462                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3463                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3464                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3465                                         SCTP_INP_RLOCK(inp);
 3466                                         av->assoc_value = inp->auth_supported;
 3467                                         SCTP_INP_RUNLOCK(inp);
 3468                                 } else {
 3469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3470                                         error = EINVAL;
 3471                                 }
 3472                         }
 3473                         if (error == 0) {
 3474                                 *optsize = sizeof(struct sctp_assoc_value);
 3475                         }
 3476                         break;
 3477                 }
 3478         case SCTP_ASCONF_SUPPORTED:
 3479                 {
 3480                         struct sctp_assoc_value *av;
 3481 
 3482                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3483                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3484 
 3485                         if (stcb) {
 3486                                 av->assoc_value = stcb->asoc.asconf_supported;
 3487                                 SCTP_TCB_UNLOCK(stcb);
 3488                         } else {
 3489                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3490                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3491                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3492                                         SCTP_INP_RLOCK(inp);
 3493                                         av->assoc_value = inp->asconf_supported;
 3494                                         SCTP_INP_RUNLOCK(inp);
 3495                                 } else {
 3496                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3497                                         error = EINVAL;
 3498                                 }
 3499                         }
 3500                         if (error == 0) {
 3501                                 *optsize = sizeof(struct sctp_assoc_value);
 3502                         }
 3503                         break;
 3504                 }
 3505         case SCTP_RECONFIG_SUPPORTED:
 3506                 {
 3507                         struct sctp_assoc_value *av;
 3508 
 3509                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3510                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3511 
 3512                         if (stcb) {
 3513                                 av->assoc_value = stcb->asoc.reconfig_supported;
 3514                                 SCTP_TCB_UNLOCK(stcb);
 3515                         } else {
 3516                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3517                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3518                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3519                                         SCTP_INP_RLOCK(inp);
 3520                                         av->assoc_value = inp->reconfig_supported;
 3521                                         SCTP_INP_RUNLOCK(inp);
 3522                                 } else {
 3523                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3524                                         error = EINVAL;
 3525                                 }
 3526                         }
 3527                         if (error == 0) {
 3528                                 *optsize = sizeof(struct sctp_assoc_value);
 3529                         }
 3530                         break;
 3531                 }
 3532         case SCTP_NRSACK_SUPPORTED:
 3533                 {
 3534                         struct sctp_assoc_value *av;
 3535 
 3536                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3537                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3538 
 3539                         if (stcb) {
 3540                                 av->assoc_value = stcb->asoc.nrsack_supported;
 3541                                 SCTP_TCB_UNLOCK(stcb);
 3542                         } else {
 3543                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3544                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3545                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3546                                         SCTP_INP_RLOCK(inp);
 3547                                         av->assoc_value = inp->nrsack_supported;
 3548                                         SCTP_INP_RUNLOCK(inp);
 3549                                 } else {
 3550                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3551                                         error = EINVAL;
 3552                                 }
 3553                         }
 3554                         if (error == 0) {
 3555                                 *optsize = sizeof(struct sctp_assoc_value);
 3556                         }
 3557                         break;
 3558                 }
 3559         case SCTP_PKTDROP_SUPPORTED:
 3560                 {
 3561                         struct sctp_assoc_value *av;
 3562 
 3563                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3564                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3565 
 3566                         if (stcb) {
 3567                                 av->assoc_value = stcb->asoc.pktdrop_supported;
 3568                                 SCTP_TCB_UNLOCK(stcb);
 3569                         } else {
 3570                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3571                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3572                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3573                                         SCTP_INP_RLOCK(inp);
 3574                                         av->assoc_value = inp->pktdrop_supported;
 3575                                         SCTP_INP_RUNLOCK(inp);
 3576                                 } else {
 3577                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3578                                         error = EINVAL;
 3579                                 }
 3580                         }
 3581                         if (error == 0) {
 3582                                 *optsize = sizeof(struct sctp_assoc_value);
 3583                         }
 3584                         break;
 3585                 }
 3586         case SCTP_ENABLE_STREAM_RESET:
 3587                 {
 3588                         struct sctp_assoc_value *av;
 3589 
 3590                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3591                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3592 
 3593                         if (stcb) {
 3594                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
 3595                                 SCTP_TCB_UNLOCK(stcb);
 3596                         } else {
 3597                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3598                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3599                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3600                                         SCTP_INP_RLOCK(inp);
 3601                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
 3602                                         SCTP_INP_RUNLOCK(inp);
 3603                                 } else {
 3604                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3605                                         error = EINVAL;
 3606                                 }
 3607                         }
 3608                         if (error == 0) {
 3609                                 *optsize = sizeof(struct sctp_assoc_value);
 3610                         }
 3611                         break;
 3612                 }
 3613         case SCTP_PR_STREAM_STATUS:
 3614                 {
 3615                         struct sctp_prstatus *sprstat;
 3616                         uint16_t sid;
 3617                         uint16_t policy;
 3618 
 3619                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3620                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3621 
 3622                         sid = sprstat->sprstat_sid;
 3623                         policy = sprstat->sprstat_policy;
 3624 #if defined(SCTP_DETAILED_STR_STATS)
 3625                         if ((stcb != NULL) &&
 3626                             (sid < stcb->asoc.streamoutcnt) &&
 3627                             (policy != SCTP_PR_SCTP_NONE) &&
 3628                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3629                             (policy == SCTP_PR_SCTP_ALL))) {
 3630                                 if (policy == SCTP_PR_SCTP_ALL) {
 3631                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3632                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3633                                 } else {
 3634                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
 3635                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
 3636                                 }
 3637 #else
 3638                         if ((stcb != NULL) &&
 3639                             (sid < stcb->asoc.streamoutcnt) &&
 3640                             (policy == SCTP_PR_SCTP_ALL)) {
 3641                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
 3642                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
 3643 #endif
 3644                         } else {
 3645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3646                                 error = EINVAL;
 3647                         }
 3648                         if (stcb != NULL) {
 3649                                 SCTP_TCB_UNLOCK(stcb);
 3650                         }
 3651                         if (error == 0) {
 3652                                 *optsize = sizeof(struct sctp_prstatus);
 3653                         }
 3654                         break;
 3655                 }
 3656         case SCTP_PR_ASSOC_STATUS:
 3657                 {
 3658                         struct sctp_prstatus *sprstat;
 3659                         uint16_t policy;
 3660 
 3661                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
 3662                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
 3663 
 3664                         policy = sprstat->sprstat_policy;
 3665                         if ((stcb != NULL) &&
 3666                             (policy != SCTP_PR_SCTP_NONE) &&
 3667                             ((policy <= SCTP_PR_SCTP_MAX) ||
 3668                             (policy == SCTP_PR_SCTP_ALL))) {
 3669                                 if (policy == SCTP_PR_SCTP_ALL) {
 3670                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
 3671                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
 3672                                 } else {
 3673                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
 3674                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
 3675                                 }
 3676                         } else {
 3677                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3678                                 error = EINVAL;
 3679                         }
 3680                         if (stcb != NULL) {
 3681                                 SCTP_TCB_UNLOCK(stcb);
 3682                         }
 3683                         if (error == 0) {
 3684                                 *optsize = sizeof(struct sctp_prstatus);
 3685                         }
 3686                         break;
 3687                 }
 3688         case SCTP_MAX_CWND:
 3689                 {
 3690                         struct sctp_assoc_value *av;
 3691 
 3692                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3693                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3694 
 3695                         if (stcb) {
 3696                                 av->assoc_value = stcb->asoc.max_cwnd;
 3697                                 SCTP_TCB_UNLOCK(stcb);
 3698                         } else {
 3699                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3700                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3701                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3702                                         SCTP_INP_RLOCK(inp);
 3703                                         av->assoc_value = inp->max_cwnd;
 3704                                         SCTP_INP_RUNLOCK(inp);
 3705                                 } else {
 3706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3707                                         error = EINVAL;
 3708                                 }
 3709                         }
 3710                         if (error == 0) {
 3711                                 *optsize = sizeof(struct sctp_assoc_value);
 3712                         }
 3713                         break;
 3714                 }
 3715         default:
 3716                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3717                 error = ENOPROTOOPT;
 3718                 break;
 3719         }                       /* end switch (sopt->sopt_name) */
 3720         if (error) {
 3721                 *optsize = 0;
 3722         }
 3723         return (error);
 3724 }
 3725 
 3726 static int
 3727 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 3728     void *p)
 3729 {
 3730         int error, set_opt;
 3731         uint32_t *mopt;
 3732         struct sctp_tcb *stcb = NULL;
 3733         struct sctp_inpcb *inp = NULL;
 3734         uint32_t vrf_id;
 3735 
 3736         if (optval == NULL) {
 3737                 SCTP_PRINTF("optval is NULL\n");
 3738                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3739                 return (EINVAL);
 3740         }
 3741         inp = (struct sctp_inpcb *)so->so_pcb;
 3742         if (inp == NULL) {
 3743                 SCTP_PRINTF("inp is NULL?\n");
 3744                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3745                 return (EINVAL);
 3746         }
 3747         vrf_id = inp->def_vrf_id;
 3748 
 3749         error = 0;
 3750         switch (optname) {
 3751         case SCTP_NODELAY:
 3752         case SCTP_AUTOCLOSE:
 3753         case SCTP_AUTO_ASCONF:
 3754         case SCTP_EXPLICIT_EOR:
 3755         case SCTP_DISABLE_FRAGMENTS:
 3756         case SCTP_USE_EXT_RCVINFO:
 3757         case SCTP_I_WANT_MAPPED_V4_ADDR:
 3758                 /* copy in the option value */
 3759                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3760                 set_opt = 0;
 3761                 if (error)
 3762                         break;
 3763                 switch (optname) {
 3764                 case SCTP_DISABLE_FRAGMENTS:
 3765                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 3766                         break;
 3767                 case SCTP_AUTO_ASCONF:
 3768                         /*
 3769                          * NOTE: we don't really support this flag
 3770                          */
 3771                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 3772                                 /* only valid for bound all sockets */
 3773                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
 3774                                     (*mopt != 0)) {
 3775                                         /* forbidden by admin */
 3776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
 3777                                         return (EPERM);
 3778                                 }
 3779                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 3780                         } else {
 3781                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3782                                 return (EINVAL);
 3783                         }
 3784                         break;
 3785                 case SCTP_EXPLICIT_EOR:
 3786                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 3787                         break;
 3788                 case SCTP_USE_EXT_RCVINFO:
 3789                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 3790                         break;
 3791                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 3792                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3793                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 3794                         } else {
 3795                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3796                                 return (EINVAL);
 3797                         }
 3798                         break;
 3799                 case SCTP_NODELAY:
 3800                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 3801                         break;
 3802                 case SCTP_AUTOCLOSE:
 3803                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3804                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3806                                 return (EINVAL);
 3807                         }
 3808                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 3809                         /*
 3810                          * The value is in ticks. Note this does not effect
 3811                          * old associations, only new ones.
 3812                          */
 3813                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 3814                         break;
 3815                 }
 3816                 SCTP_INP_WLOCK(inp);
 3817                 if (*mopt != 0) {
 3818                         sctp_feature_on(inp, set_opt);
 3819                 } else {
 3820                         sctp_feature_off(inp, set_opt);
 3821                 }
 3822                 SCTP_INP_WUNLOCK(inp);
 3823                 break;
 3824         case SCTP_REUSE_PORT:
 3825                 {
 3826                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3827                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 3828                                 /* Can't set it after we are bound */
 3829                                 error = EINVAL;
 3830                                 break;
 3831                         }
 3832                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 3833                                 /* Can't do this for a 1-m socket */
 3834                                 error = EINVAL;
 3835                                 break;
 3836                         }
 3837                         if (optval)
 3838                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3839                         else
 3840                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3841                         break;
 3842                 }
 3843         case SCTP_PARTIAL_DELIVERY_POINT:
 3844                 {
 3845                         uint32_t *value;
 3846 
 3847                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 3848                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 3849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3850                                 error = EINVAL;
 3851                                 break;
 3852                         }
 3853                         inp->partial_delivery_point = *value;
 3854                         break;
 3855                 }
 3856         case SCTP_FRAGMENT_INTERLEAVE:
 3857                 /* not yet until we re-write sctp_recvmsg() */
 3858                 {
 3859                         uint32_t *level;
 3860 
 3861                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 3862                         if (*level == SCTP_FRAG_LEVEL_2) {
 3863                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3864                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3865                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 3866                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3867                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3868                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 3869                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3870                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3871 
 3872                         } else {
 3873                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3874                                 error = EINVAL;
 3875                         }
 3876                         break;
 3877                 }
 3878         case SCTP_INTERLEAVING_SUPPORTED:
 3879                 {
 3880                         struct sctp_assoc_value *av;
 3881 
 3882                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3883                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3884 
 3885                         if (stcb) {
 3886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3887                                 error = EINVAL;
 3888                                 SCTP_TCB_UNLOCK(stcb);
 3889                         } else {
 3890                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3891                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3892                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3893                                         SCTP_INP_WLOCK(inp);
 3894                                         if (av->assoc_value == 0) {
 3895                                                 inp->idata_supported = 0;
 3896                                         } else {
 3897                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
 3898                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
 3899                                                         inp->idata_supported = 1;
 3900                                                 } else {
 3901                                                         /*
 3902                                                          * Must have Frag
 3903                                                          * interleave and
 3904                                                          * stream interleave
 3905                                                          * on
 3906                                                          */
 3907                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3908                                                         error = EINVAL;
 3909                                                 }
 3910                                         }
 3911                                         SCTP_INP_WUNLOCK(inp);
 3912                                 } else {
 3913                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3914                                         error = EINVAL;
 3915                                 }
 3916                         }
 3917                         break;
 3918                 }
 3919         case SCTP_CMT_ON_OFF:
 3920                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 3921                         struct sctp_assoc_value *av;
 3922 
 3923                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3924                         if (av->assoc_value > SCTP_CMT_MAX) {
 3925                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3926                                 error = EINVAL;
 3927                                 break;
 3928                         }
 3929                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3930                         if (stcb) {
 3931                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3932                                 SCTP_TCB_UNLOCK(stcb);
 3933                         } else {
 3934                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3935                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3936                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3937                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3938                                         SCTP_INP_WLOCK(inp);
 3939                                         inp->sctp_cmt_on_off = av->assoc_value;
 3940                                         SCTP_INP_WUNLOCK(inp);
 3941                                 }
 3942                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3943                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3944                                         SCTP_INP_RLOCK(inp);
 3945                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3946                                                 SCTP_TCB_LOCK(stcb);
 3947                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3948                                                 SCTP_TCB_UNLOCK(stcb);
 3949                                         }
 3950                                         SCTP_INP_RUNLOCK(inp);
 3951                                 }
 3952                         }
 3953                 } else {
 3954                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3955                         error = ENOPROTOOPT;
 3956                 }
 3957                 break;
 3958         case SCTP_PLUGGABLE_CC:
 3959                 {
 3960                         struct sctp_assoc_value *av;
 3961                         struct sctp_nets *net;
 3962 
 3963                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3964                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
 3965                             (av->assoc_value != SCTP_CC_HSTCP) &&
 3966                             (av->assoc_value != SCTP_CC_HTCP) &&
 3967                             (av->assoc_value != SCTP_CC_RTCC)) {
 3968                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3969                                 error = EINVAL;
 3970                                 break;
 3971                         }
 3972                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3973                         if (stcb) {
 3974                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3975                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3976                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3977                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3978                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3979                                         }
 3980                                 }
 3981                                 SCTP_TCB_UNLOCK(stcb);
 3982                         } else {
 3983                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3984                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3985                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3986                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3987                                         SCTP_INP_WLOCK(inp);
 3988                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 3989                                         SCTP_INP_WUNLOCK(inp);
 3990                                 }
 3991                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3992                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3993                                         SCTP_INP_RLOCK(inp);
 3994                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3995                                                 SCTP_TCB_LOCK(stcb);
 3996                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3997                                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3998                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3999                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4000                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 4001                                                         }
 4002                                                 }
 4003                                                 SCTP_TCB_UNLOCK(stcb);
 4004                                         }
 4005                                         SCTP_INP_RUNLOCK(inp);
 4006                                 }
 4007                         }
 4008                         break;
 4009                 }
 4010         case SCTP_CC_OPTION:
 4011                 {
 4012                         struct sctp_cc_option *cc_opt;
 4013 
 4014                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
 4015                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 4016                         if (stcb == NULL) {
 4017                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
 4018                                         SCTP_INP_RLOCK(inp);
 4019                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4020                                                 SCTP_TCB_LOCK(stcb);
 4021                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
 4022                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
 4023                                                 }
 4024                                                 SCTP_TCB_UNLOCK(stcb);
 4025                                         }
 4026                                         SCTP_INP_RUNLOCK(inp);
 4027                                 } else {
 4028                                         error = EINVAL;
 4029                                 }
 4030                         } else {
 4031                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 4032                                         error = ENOTSUP;
 4033                                 } else {
 4034                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
 4035                                             cc_opt);
 4036                                 }
 4037                                 SCTP_TCB_UNLOCK(stcb);
 4038                         }
 4039                         break;
 4040                 }
 4041         case SCTP_PLUGGABLE_SS:
 4042                 {
 4043                         struct sctp_assoc_value *av;
 4044 
 4045                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4046                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
 4047                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
 4048                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
 4049                             (av->assoc_value != SCTP_SS_PRIORITY) &&
 4050                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
 4051                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
 4052                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4053                                 error = EINVAL;
 4054                                 break;
 4055                         }
 4056                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4057                         if (stcb) {
 4058                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4059                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4060                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4061                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4062                                 SCTP_TCB_UNLOCK(stcb);
 4063                         } else {
 4064                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4065                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4066                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4067                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4068                                         SCTP_INP_WLOCK(inp);
 4069                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
 4070                                         SCTP_INP_WUNLOCK(inp);
 4071                                 }
 4072                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4073                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4074                                         SCTP_INP_RLOCK(inp);
 4075                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4076                                                 SCTP_TCB_LOCK(stcb);
 4077                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 4078                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 4079                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 4080                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 4081                                                 SCTP_TCB_UNLOCK(stcb);
 4082                                         }
 4083                                         SCTP_INP_RUNLOCK(inp);
 4084                                 }
 4085                         }
 4086                         break;
 4087                 }
 4088         case SCTP_SS_VALUE:
 4089                 {
 4090                         struct sctp_stream_value *av;
 4091 
 4092                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
 4093                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4094                         if (stcb) {
 4095                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 4096                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 4097                                     av->stream_value) < 0)) {
 4098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4099                                         error = EINVAL;
 4100                                 }
 4101                                 SCTP_TCB_UNLOCK(stcb);
 4102                         } else {
 4103                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
 4104                                         SCTP_INP_RLOCK(inp);
 4105                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4106                                                 SCTP_TCB_LOCK(stcb);
 4107                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
 4108                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
 4109                                                             &stcb->asoc,
 4110                                                             &stcb->asoc.strmout[av->stream_id],
 4111                                                             av->stream_value);
 4112                                                 }
 4113                                                 SCTP_TCB_UNLOCK(stcb);
 4114                                         }
 4115                                         SCTP_INP_RUNLOCK(inp);
 4116                                 } else {
 4117                                         /*
 4118                                          * Can't set stream value without
 4119                                          * association
 4120                                          */
 4121                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4122                                         error = EINVAL;
 4123                                 }
 4124                         }
 4125                         break;
 4126                 }
 4127         case SCTP_CLR_STAT_LOG:
 4128                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4129                 error = EOPNOTSUPP;
 4130                 break;
 4131         case SCTP_CONTEXT:
 4132                 {
 4133                         struct sctp_assoc_value *av;
 4134 
 4135                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4136                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4137 
 4138                         if (stcb) {
 4139                                 stcb->asoc.context = av->assoc_value;
 4140                                 SCTP_TCB_UNLOCK(stcb);
 4141                         } else {
 4142                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4143                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4144                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4145                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4146                                         SCTP_INP_WLOCK(inp);
 4147                                         inp->sctp_context = av->assoc_value;
 4148                                         SCTP_INP_WUNLOCK(inp);
 4149                                 }
 4150                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4151                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4152                                         SCTP_INP_RLOCK(inp);
 4153                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4154                                                 SCTP_TCB_LOCK(stcb);
 4155                                                 stcb->asoc.context = av->assoc_value;
 4156                                                 SCTP_TCB_UNLOCK(stcb);
 4157                                         }
 4158                                         SCTP_INP_RUNLOCK(inp);
 4159                                 }
 4160                         }
 4161                         break;
 4162                 }
 4163         case SCTP_VRF_ID:
 4164                 {
 4165                         uint32_t *default_vrfid;
 4166 
 4167                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 4168                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 4169                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4170                                 error = EINVAL;
 4171                                 break;
 4172                         }
 4173                         inp->def_vrf_id = *default_vrfid;
 4174                         break;
 4175                 }
 4176         case SCTP_DEL_VRF_ID:
 4177                 {
 4178                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4179                         error = EOPNOTSUPP;
 4180                         break;
 4181                 }
 4182         case SCTP_ADD_VRF_ID:
 4183                 {
 4184                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4185                         error = EOPNOTSUPP;
 4186                         break;
 4187                 }
 4188         case SCTP_DELAYED_SACK:
 4189                 {
 4190                         struct sctp_sack_info *sack;
 4191 
 4192                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 4193                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 4194                         if (sack->sack_delay) {
 4195                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 4196                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 4197                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 4198                                         sack->sack_delay = TICKS_TO_MSEC(1);
 4199                                 }
 4200                         }
 4201                         if (stcb) {
 4202                                 if (sack->sack_delay) {
 4203                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4204                                 }
 4205                                 if (sack->sack_freq) {
 4206                                         stcb->asoc.sack_freq = sack->sack_freq;
 4207                                 }
 4208                                 SCTP_TCB_UNLOCK(stcb);
 4209                         } else {
 4210                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4211                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4212                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
 4213                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 4214                                         SCTP_INP_WLOCK(inp);
 4215                                         if (sack->sack_delay) {
 4216                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 4217                                         }
 4218                                         if (sack->sack_freq) {
 4219                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 4220                                         }
 4221                                         SCTP_INP_WUNLOCK(inp);
 4222                                 }
 4223                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
 4224                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 4225                                         SCTP_INP_RLOCK(inp);
 4226                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4227                                                 SCTP_TCB_LOCK(stcb);
 4228                                                 if (sack->sack_delay) {
 4229                                                         stcb->asoc.delayed_ack = sack->sack_delay;
 4230                                                 }
 4231                                                 if (sack->sack_freq) {
 4232                                                         stcb->asoc.sack_freq = sack->sack_freq;
 4233                                                 }
 4234                                                 SCTP_TCB_UNLOCK(stcb);
 4235                                         }
 4236                                         SCTP_INP_RUNLOCK(inp);
 4237                                 }
 4238                         }
 4239                         break;
 4240                 }
 4241         case SCTP_AUTH_CHUNK:
 4242                 {
 4243                         struct sctp_authchunk *sauth;
 4244 
 4245                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 4246 
 4247                         SCTP_INP_WLOCK(inp);
 4248                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 4249                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4250                                 error = EINVAL;
 4251                         } else {
 4252                                 inp->auth_supported = 1;
 4253                         }
 4254                         SCTP_INP_WUNLOCK(inp);
 4255                         break;
 4256                 }
 4257         case SCTP_AUTH_KEY:
 4258                 {
 4259                         struct sctp_authkey *sca;
 4260                         struct sctp_keyhead *shared_keys;
 4261                         sctp_sharedkey_t *shared_key;
 4262                         sctp_key_t *key = NULL;
 4263                         size_t size;
 4264 
 4265                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 4266                         if (sca->sca_keylength == 0) {
 4267                                 size = optsize - sizeof(struct sctp_authkey);
 4268                         } else {
 4269                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
 4270                                         size = sca->sca_keylength;
 4271                                 } else {
 4272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4273                                         error = EINVAL;
 4274                                         break;
 4275                                 }
 4276                         }
 4277                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 4278 
 4279                         if (stcb) {
 4280                                 shared_keys = &stcb->asoc.shared_keys;
 4281                                 /* clear the cached keys for this key id */
 4282                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4283                                 /*
 4284                                  * create the new shared key and
 4285                                  * insert/replace it
 4286                                  */
 4287                                 if (size > 0) {
 4288                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4289                                         if (key == NULL) {
 4290                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4291                                                 error = ENOMEM;
 4292                                                 SCTP_TCB_UNLOCK(stcb);
 4293                                                 break;
 4294                                         }
 4295                                 }
 4296                                 shared_key = sctp_alloc_sharedkey();
 4297                                 if (shared_key == NULL) {
 4298                                         sctp_free_key(key);
 4299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4300                                         error = ENOMEM;
 4301                                         SCTP_TCB_UNLOCK(stcb);
 4302                                         break;
 4303                                 }
 4304                                 shared_key->key = key;
 4305                                 shared_key->keyid = sca->sca_keynumber;
 4306                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4307                                 SCTP_TCB_UNLOCK(stcb);
 4308                         } else {
 4309                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4310                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4311                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
 4312                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 4313                                         SCTP_INP_WLOCK(inp);
 4314                                         shared_keys = &inp->sctp_ep.shared_keys;
 4315                                         /*
 4316                                          * clear the cached keys on all
 4317                                          * assocs for this key id
 4318                                          */
 4319                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 4320                                         /*
 4321                                          * create the new shared key and
 4322                                          * insert/replace it
 4323                                          */
 4324                                         if (size > 0) {
 4325                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4326                                                 if (key == NULL) {
 4327                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4328                                                         error = ENOMEM;
 4329                                                         SCTP_INP_WUNLOCK(inp);
 4330                                                         break;
 4331                                                 }
 4332                                         }
 4333                                         shared_key = sctp_alloc_sharedkey();
 4334                                         if (shared_key == NULL) {
 4335                                                 sctp_free_key(key);
 4336                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4337                                                 error = ENOMEM;
 4338                                                 SCTP_INP_WUNLOCK(inp);
 4339                                                 break;
 4340                                         }
 4341                                         shared_key->key = key;
 4342                                         shared_key->keyid = sca->sca_keynumber;
 4343                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
 4344                                         SCTP_INP_WUNLOCK(inp);
 4345                                 }
 4346                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
 4347                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 4348                                         SCTP_INP_RLOCK(inp);
 4349                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4350                                                 SCTP_TCB_LOCK(stcb);
 4351                                                 shared_keys = &stcb->asoc.shared_keys;
 4352                                                 /*
 4353                                                  * clear the cached keys for
 4354                                                  * this key id
 4355                                                  */
 4356                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 4357                                                 /*
 4358                                                  * create the new shared key
 4359                                                  * and insert/replace it
 4360                                                  */
 4361                                                 if (size > 0) {
 4362                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
 4363                                                         if (key == NULL) {
 4364                                                                 SCTP_TCB_UNLOCK(stcb);
 4365                                                                 continue;
 4366                                                         }
 4367                                                 }
 4368                                                 shared_key = sctp_alloc_sharedkey();
 4369                                                 if (shared_key == NULL) {
 4370                                                         sctp_free_key(key);
 4371                                                         SCTP_TCB_UNLOCK(stcb);
 4372                                                         continue;
 4373                                                 }
 4374                                                 shared_key->key = key;
 4375                                                 shared_key->keyid = sca->sca_keynumber;
 4376                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 4377                                                 SCTP_TCB_UNLOCK(stcb);
 4378                                         }
 4379                                         SCTP_INP_RUNLOCK(inp);
 4380                                 }
 4381                         }
 4382                         break;
 4383                 }
 4384         case SCTP_HMAC_IDENT:
 4385                 {
 4386                         struct sctp_hmacalgo *shmac;
 4387                         sctp_hmaclist_t *hmaclist;
 4388                         uint16_t hmacid;
 4389                         uint32_t i;
 4390 
 4391                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 4392                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
 4393                             (shmac->shmac_number_of_idents > 0xffff)) {
 4394                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4395                                 error = EINVAL;
 4396                                 break;
 4397                         }
 4398                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
 4399                         if (hmaclist == NULL) {
 4400                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4401                                 error = ENOMEM;
 4402                                 break;
 4403                         }
 4404                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 4405                                 hmacid = shmac->shmac_idents[i];
 4406                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 4407                                          /* invalid HMACs were found */ ;
 4408                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4409                                         error = EINVAL;
 4410                                         sctp_free_hmaclist(hmaclist);
 4411                                         goto sctp_set_hmac_done;
 4412                                 }
 4413                         }
 4414                         for (i = 0; i < hmaclist->num_algo; i++) {
 4415                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 4416                                         /* already in list */
 4417                                         break;
 4418                                 }
 4419                         }
 4420                         if (i == hmaclist->num_algo) {
 4421                                 /* not found in list */
 4422                                 sctp_free_hmaclist(hmaclist);
 4423                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4424                                 error = EINVAL;
 4425                                 break;
 4426                         }
 4427                         /* set it on the endpoint */
 4428                         SCTP_INP_WLOCK(inp);
 4429                         if (inp->sctp_ep.local_hmacs)
 4430                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 4431                         inp->sctp_ep.local_hmacs = hmaclist;
 4432                         SCTP_INP_WUNLOCK(inp);
 4433         sctp_set_hmac_done:
 4434                         break;
 4435                 }
 4436         case SCTP_AUTH_ACTIVE_KEY:
 4437                 {
 4438                         struct sctp_authkeyid *scact;
 4439 
 4440                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
 4441                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 4442 
 4443                         /* set the active key on the right place */
 4444                         if (stcb) {
 4445                                 /* set the active key on the assoc */
 4446                                 if (sctp_auth_setactivekey(stcb,
 4447                                     scact->scact_keynumber)) {
 4448                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 4449                                             SCTP_FROM_SCTP_USRREQ,
 4450                                             EINVAL);
 4451                                         error = EINVAL;
 4452                                 }
 4453                                 SCTP_TCB_UNLOCK(stcb);
 4454                         } else {
 4455                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4456                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4457                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4458                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4459                                         SCTP_INP_WLOCK(inp);
 4460                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
 4461                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4462                                                 error = EINVAL;
 4463                                         }
 4464                                         SCTP_INP_WUNLOCK(inp);
 4465                                 }
 4466                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4467                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4468                                         SCTP_INP_RLOCK(inp);
 4469                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4470                                                 SCTP_TCB_LOCK(stcb);
 4471                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
 4472                                                 SCTP_TCB_UNLOCK(stcb);
 4473                                         }
 4474                                         SCTP_INP_RUNLOCK(inp);
 4475                                 }
 4476                         }
 4477                         break;
 4478                 }
 4479         case SCTP_AUTH_DELETE_KEY:
 4480                 {
 4481                         struct sctp_authkeyid *scdel;
 4482 
 4483                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
 4484                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 4485 
 4486                         /* delete the key from the right place */
 4487                         if (stcb) {
 4488                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
 4489                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4490                                         error = EINVAL;
 4491                                 }
 4492                                 SCTP_TCB_UNLOCK(stcb);
 4493                         } else {
 4494                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4495                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4496                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4497                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4498                                         SCTP_INP_WLOCK(inp);
 4499                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
 4500                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4501                                                 error = EINVAL;
 4502                                         }
 4503                                         SCTP_INP_WUNLOCK(inp);
 4504                                 }
 4505                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4506                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4507                                         SCTP_INP_RLOCK(inp);
 4508                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4509                                                 SCTP_TCB_LOCK(stcb);
 4510                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
 4511                                                 SCTP_TCB_UNLOCK(stcb);
 4512                                         }
 4513                                         SCTP_INP_RUNLOCK(inp);
 4514                                 }
 4515                         }
 4516                         break;
 4517                 }
 4518         case SCTP_AUTH_DEACTIVATE_KEY:
 4519                 {
 4520                         struct sctp_authkeyid *keyid;
 4521 
 4522                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
 4523                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 4524 
 4525                         /* deactivate the key from the right place */
 4526                         if (stcb) {
 4527                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
 4528                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4529                                         error = EINVAL;
 4530                                 }
 4531                                 SCTP_TCB_UNLOCK(stcb);
 4532                         } else {
 4533                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4534                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4535                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4536                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4537                                         SCTP_INP_WLOCK(inp);
 4538                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
 4539                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4540                                                 error = EINVAL;
 4541                                         }
 4542                                         SCTP_INP_WUNLOCK(inp);
 4543                                 }
 4544                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4545                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4546                                         SCTP_INP_RLOCK(inp);
 4547                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4548                                                 SCTP_TCB_LOCK(stcb);
 4549                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
 4550                                                 SCTP_TCB_UNLOCK(stcb);
 4551                                         }
 4552                                         SCTP_INP_RUNLOCK(inp);
 4553                                 }
 4554                         }
 4555                         break;
 4556                 }
 4557         case SCTP_ENABLE_STREAM_RESET:
 4558                 {
 4559                         struct sctp_assoc_value *av;
 4560 
 4561                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4562                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
 4563                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4564                                 error = EINVAL;
 4565                                 break;
 4566                         }
 4567                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4568                         if (stcb) {
 4569                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
 4570                                 SCTP_TCB_UNLOCK(stcb);
 4571                         } else {
 4572                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4573                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4574                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4575                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4576                                         SCTP_INP_WLOCK(inp);
 4577                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
 4578                                         SCTP_INP_WUNLOCK(inp);
 4579                                 }
 4580                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4581                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4582                                         SCTP_INP_RLOCK(inp);
 4583                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4584                                                 SCTP_TCB_LOCK(stcb);
 4585                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
 4586                                                 SCTP_TCB_UNLOCK(stcb);
 4587                                         }
 4588                                         SCTP_INP_RUNLOCK(inp);
 4589                                 }
 4590                         }
 4591                         break;
 4592                 }
 4593         case SCTP_RESET_STREAMS:
 4594                 {
 4595                         struct sctp_reset_streams *strrst;
 4596                         int i, send_out = 0;
 4597                         int send_in = 0;
 4598 
 4599                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
 4600                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
 4601                         if (stcb == NULL) {
 4602                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4603                                 error = ENOENT;
 4604                                 break;
 4605                         }
 4606                         if (stcb->asoc.reconfig_supported == 0) {
 4607                                 /*
 4608                                  * Peer does not support the chunk type.
 4609                                  */
 4610                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4611                                 error = EOPNOTSUPP;
 4612                                 SCTP_TCB_UNLOCK(stcb);
 4613                                 break;
 4614                         }
 4615                         if (sizeof(struct sctp_reset_streams) +
 4616                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
 4617                                 error = EINVAL;
 4618                                 SCTP_TCB_UNLOCK(stcb);
 4619                                 break;
 4620                         }
 4621                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
 4622                                 send_in = 1;
 4623                                 if (stcb->asoc.stream_reset_outstanding) {
 4624                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4625                                         error = EALREADY;
 4626                                         SCTP_TCB_UNLOCK(stcb);
 4627                                         break;
 4628                                 }
 4629                         }
 4630                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 4631                                 send_out = 1;
 4632                         }
 4633                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
 4634                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 4635                                 error = ENOMEM;
 4636                                 SCTP_TCB_UNLOCK(stcb);
 4637                                 break;
 4638                         }
 4639                         if ((send_in == 0) && (send_out == 0)) {
 4640                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4641                                 error = EINVAL;
 4642                                 SCTP_TCB_UNLOCK(stcb);
 4643                                 break;
 4644                         }
 4645                         for (i = 0; i < strrst->srs_number_streams; i++) {
 4646                                 if ((send_in) &&
 4647                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
 4648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4649                                         error = EINVAL;
 4650                                         break;
 4651                                 }
 4652                                 if ((send_out) &&
 4653                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
 4654                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4655                                         error = EINVAL;
 4656                                         break;
 4657                                 }
 4658                         }
 4659                         if (error) {
 4660                                 SCTP_TCB_UNLOCK(stcb);
 4661                                 break;
 4662                         }
 4663                         if (send_out) {
 4664                                 int cnt;
 4665                                 uint16_t strm;
 4666 
 4667                                 if (strrst->srs_number_streams) {
 4668                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
 4669                                                 strm = strrst->srs_stream_list[i];
 4670                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
 4671                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
 4672                                                         cnt++;
 4673                                                 }
 4674                                         }
 4675                                 } else {
 4676                                         /* Its all */
 4677                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
 4678                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
 4679                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
 4680                                                         cnt++;
 4681                                                 }
 4682                                         }
 4683                                 }
 4684                         }
 4685                         if (send_in) {
 4686                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 4687                                     strrst->srs_stream_list,
 4688                                     send_in, 0, 0, 0, 0, 0);
 4689                         } else {
 4690                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
 4691                         }
 4692                         if (error == 0) {
 4693                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4694                         } else {
 4695                                 /*
 4696                                  * For outgoing streams don't report any
 4697                                  * problems in sending the request to the
 4698                                  * application. XXX: Double check resetting
 4699                                  * incoming streams.
 4700                                  */
 4701                                 error = 0;
 4702                         }
 4703                         SCTP_TCB_UNLOCK(stcb);
 4704                         break;
 4705                 }
 4706         case SCTP_ADD_STREAMS:
 4707                 {
 4708                         struct sctp_add_streams *stradd;
 4709                         uint8_t addstream = 0;
 4710                         uint16_t add_o_strmcnt = 0;
 4711                         uint16_t add_i_strmcnt = 0;
 4712 
 4713                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
 4714                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
 4715                         if (stcb == NULL) {
 4716                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4717                                 error = ENOENT;
 4718                                 break;
 4719                         }
 4720                         if (stcb->asoc.reconfig_supported == 0) {
 4721                                 /*
 4722                                  * Peer does not support the chunk type.
 4723                                  */
 4724                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4725                                 error = EOPNOTSUPP;
 4726                                 SCTP_TCB_UNLOCK(stcb);
 4727                                 break;
 4728                         }
 4729                         if (stcb->asoc.stream_reset_outstanding) {
 4730                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4731                                 error = EALREADY;
 4732                                 SCTP_TCB_UNLOCK(stcb);
 4733                                 break;
 4734                         }
 4735                         if ((stradd->sas_outstrms == 0) &&
 4736                             (stradd->sas_instrms == 0)) {
 4737                                 error = EINVAL;
 4738                                 goto skip_stuff;
 4739                         }
 4740                         if (stradd->sas_outstrms) {
 4741                                 addstream = 1;
 4742                                 /* We allocate here */
 4743                                 add_o_strmcnt = stradd->sas_outstrms;
 4744                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
 4745                                         /* You can't have more than 64k */
 4746                                         error = EINVAL;
 4747                                         goto skip_stuff;
 4748                                 }
 4749                         }
 4750                         if (stradd->sas_instrms) {
 4751                                 int cnt;
 4752 
 4753                                 addstream |= 2;
 4754                                 /*
 4755                                  * We allocate inside
 4756                                  * sctp_send_str_reset_req()
 4757                                  */
 4758                                 add_i_strmcnt = stradd->sas_instrms;
 4759                                 cnt = add_i_strmcnt;
 4760                                 cnt += stcb->asoc.streamincnt;
 4761                                 if (cnt > 0x0000ffff) {
 4762                                         /* You can't have more than 64k */
 4763                                         error = EINVAL;
 4764                                         goto skip_stuff;
 4765                                 }
 4766                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
 4767                                         /* More than you are allowed */
 4768                                         error = EINVAL;
 4769                                         goto skip_stuff;
 4770                                 }
 4771                         }
 4772                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
 4773                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4774         skip_stuff:
 4775                         SCTP_TCB_UNLOCK(stcb);
 4776                         break;
 4777                 }
 4778         case SCTP_RESET_ASSOC:
 4779                 {
 4780                         int i;
 4781                         uint32_t *value;
 4782 
 4783                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 4784                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
 4785                         if (stcb == NULL) {
 4786                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4787                                 error = ENOENT;
 4788                                 break;
 4789                         }
 4790                         if (stcb->asoc.reconfig_supported == 0) {
 4791                                 /*
 4792                                  * Peer does not support the chunk type.
 4793                                  */
 4794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4795                                 error = EOPNOTSUPP;
 4796                                 SCTP_TCB_UNLOCK(stcb);
 4797                                 break;
 4798                         }
 4799                         if (stcb->asoc.stream_reset_outstanding) {
 4800                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4801                                 error = EALREADY;
 4802                                 SCTP_TCB_UNLOCK(stcb);
 4803                                 break;
 4804                         }
 4805                         /*
 4806                          * Is there any data pending in the send or sent
 4807                          * queues?
 4808                          */
 4809                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
 4810                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
 4811                 busy_out:
 4812                                 error = EBUSY;
 4813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4814                                 SCTP_TCB_UNLOCK(stcb);
 4815                                 break;
 4816                         }
 4817                         /* Do any streams have data queued? */
 4818                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
 4819                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
 4820                                         goto busy_out;
 4821                                 }
 4822                         }
 4823                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
 4824                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4825                         SCTP_TCB_UNLOCK(stcb);
 4826                         break;
 4827                 }
 4828         case SCTP_CONNECT_X:
 4829                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4830                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4831                         error = EINVAL;
 4832                         break;
 4833                 }
 4834                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 4835                 break;
 4836         case SCTP_CONNECT_X_DELAYED:
 4837                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4838                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4839                         error = EINVAL;
 4840                         break;
 4841                 }
 4842                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 4843                 break;
 4844         case SCTP_CONNECT_X_COMPLETE:
 4845                 {
 4846                         struct sockaddr *sa;
 4847 
 4848                         /* FIXME MT: check correct? */
 4849                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 4850 
 4851                         /* find tcb */
 4852                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4853                                 SCTP_INP_RLOCK(inp);
 4854                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4855                                 if (stcb) {
 4856                                         SCTP_TCB_LOCK(stcb);
 4857                                 }
 4858                                 SCTP_INP_RUNLOCK(inp);
 4859                         } else {
 4860                                 /*
 4861                                  * We increment here since
 4862                                  * sctp_findassociation_ep_addr() wil do a
 4863                                  * decrement if it finds the stcb as long as
 4864                                  * the locked tcb (last argument) is NOT a
 4865                                  * TCB.. aka NULL.
 4866                                  */
 4867                                 SCTP_INP_INCR_REF(inp);
 4868                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
 4869                                 if (stcb == NULL) {
 4870                                         SCTP_INP_DECR_REF(inp);
 4871                                 }
 4872                         }
 4873 
 4874                         if (stcb == NULL) {
 4875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4876                                 error = ENOENT;
 4877                                 break;
 4878                         }
 4879                         if (stcb->asoc.delayed_connection == 1) {
 4880                                 stcb->asoc.delayed_connection = 0;
 4881                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4882                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 4883                                     stcb->asoc.primary_destination,
 4884                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
 4885                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4886                         } else {
 4887                                 /*
 4888                                  * already expired or did not use delayed
 4889                                  * connectx
 4890                                  */
 4891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4892                                 error = EALREADY;
 4893                         }
 4894                         SCTP_TCB_UNLOCK(stcb);
 4895                         break;
 4896                 }
 4897         case SCTP_MAX_BURST:
 4898                 {
 4899                         struct sctp_assoc_value *av;
 4900 
 4901                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4902                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4903 
 4904                         if (stcb) {
 4905                                 stcb->asoc.max_burst = av->assoc_value;
 4906                                 SCTP_TCB_UNLOCK(stcb);
 4907                         } else {
 4908                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4909                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4910                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4911                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4912                                         SCTP_INP_WLOCK(inp);
 4913                                         inp->sctp_ep.max_burst = av->assoc_value;
 4914                                         SCTP_INP_WUNLOCK(inp);
 4915                                 }
 4916                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4917                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4918                                         SCTP_INP_RLOCK(inp);
 4919                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4920                                                 SCTP_TCB_LOCK(stcb);
 4921                                                 stcb->asoc.max_burst = av->assoc_value;
 4922                                                 SCTP_TCB_UNLOCK(stcb);
 4923                                         }
 4924                                         SCTP_INP_RUNLOCK(inp);
 4925                                 }
 4926                         }
 4927                         break;
 4928                 }
 4929         case SCTP_MAXSEG:
 4930                 {
 4931                         struct sctp_assoc_value *av;
 4932                         int ovh;
 4933 
 4934                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4935                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4936 
 4937                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4938                                 ovh = SCTP_MED_OVERHEAD;
 4939                         } else {
 4940                                 ovh = SCTP_MED_V4_OVERHEAD;
 4941                         }
 4942                         if (stcb) {
 4943                                 if (av->assoc_value) {
 4944                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 4945                                 } else {
 4946                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4947                                 }
 4948                                 SCTP_TCB_UNLOCK(stcb);
 4949                         } else {
 4950                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4951                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4952                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 4953                                         SCTP_INP_WLOCK(inp);
 4954                                         /*
 4955                                          * FIXME MT: I think this is not in
 4956                                          * tune with the API ID
 4957                                          */
 4958                                         if (av->assoc_value) {
 4959                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
 4960                                         } else {
 4961                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4962                                         }
 4963                                         SCTP_INP_WUNLOCK(inp);
 4964                                 } else {
 4965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4966                                         error = EINVAL;
 4967                                 }
 4968                         }
 4969                         break;
 4970                 }
 4971         case SCTP_EVENTS:
 4972                 {
 4973                         struct sctp_event_subscribe *events;
 4974 
 4975                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 4976 
 4977                         SCTP_INP_WLOCK(inp);
 4978                         if (events->sctp_data_io_event) {
 4979                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4980                         } else {
 4981                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4982                         }
 4983 
 4984                         if (events->sctp_association_event) {
 4985                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4986                         } else {
 4987                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4988                         }
 4989 
 4990                         if (events->sctp_address_event) {
 4991                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4992                         } else {
 4993                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4994                         }
 4995 
 4996                         if (events->sctp_send_failure_event) {
 4997                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4998                         } else {
 4999                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5000                         }
 5001 
 5002                         if (events->sctp_peer_error_event) {
 5003                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 5004                         } else {
 5005                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 5006                         }
 5007 
 5008                         if (events->sctp_shutdown_event) {
 5009                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5010                         } else {
 5011                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5012                         }
 5013 
 5014                         if (events->sctp_partial_delivery_event) {
 5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 5016                         } else {
 5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 5018                         }
 5019 
 5020                         if (events->sctp_adaptation_layer_event) {
 5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5022                         } else {
 5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5024                         }
 5025 
 5026                         if (events->sctp_authentication_event) {
 5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5028                         } else {
 5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 5030                         }
 5031 
 5032                         if (events->sctp_sender_dry_event) {
 5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5034                         } else {
 5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 5036                         }
 5037 
 5038                         if (events->sctp_stream_reset_event) {
 5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5040                         } else {
 5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5042                         }
 5043                         SCTP_INP_WUNLOCK(inp);
 5044 
 5045                         SCTP_INP_RLOCK(inp);
 5046                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5047                                 SCTP_TCB_LOCK(stcb);
 5048                                 if (events->sctp_association_event) {
 5049                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5050                                 } else {
 5051                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 5052                                 }
 5053                                 if (events->sctp_address_event) {
 5054                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5055                                 } else {
 5056                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 5057                                 }
 5058                                 if (events->sctp_send_failure_event) {
 5059                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5060                                 } else {
 5061                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 5062                                 }
 5063                                 if (events->sctp_peer_error_event) {
 5064                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5065                                 } else {
 5066                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 5067                                 }
 5068                                 if (events->sctp_shutdown_event) {
 5069                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5070                                 } else {
 5071                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 5072                                 }
 5073                                 if (events->sctp_partial_delivery_event) {
 5074                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5075                                 } else {
 5076                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 5077                                 }
 5078                                 if (events->sctp_adaptation_layer_event) {
 5079                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5080                                 } else {
 5081                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 5082                                 }
 5083                                 if (events->sctp_authentication_event) {
 5084                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5085                                 } else {
 5086                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 5087                                 }
 5088                                 if (events->sctp_sender_dry_event) {
 5089                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5090                                 } else {
 5091                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 5092                                 }
 5093                                 if (events->sctp_stream_reset_event) {
 5094                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5095                                 } else {
 5096                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 5097                                 }
 5098                                 SCTP_TCB_UNLOCK(stcb);
 5099                         }
 5100                         /*
 5101                          * Send up the sender dry event only for 1-to-1
 5102                          * style sockets.
 5103                          */
 5104                         if (events->sctp_sender_dry_event) {
 5105                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5106                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 5107                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 5108                                         if (stcb) {
 5109                                                 SCTP_TCB_LOCK(stcb);
 5110                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 5111                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 5112                                                     (stcb->asoc.stream_queue_cnt == 0)) {
 5113                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 5114                                                 }
 5115                                                 SCTP_TCB_UNLOCK(stcb);
 5116                                         }
 5117                                 }
 5118                         }
 5119                         SCTP_INP_RUNLOCK(inp);
 5120                         break;
 5121                 }
 5122         case SCTP_ADAPTATION_LAYER:
 5123                 {
 5124                         struct sctp_setadaptation *adap_bits;
 5125 
 5126                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 5127                         SCTP_INP_WLOCK(inp);
 5128                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 5129                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
 5130                         SCTP_INP_WUNLOCK(inp);
 5131                         break;
 5132                 }
 5133 #ifdef SCTP_DEBUG
 5134         case SCTP_SET_INITIAL_DBG_SEQ:
 5135                 {
 5136                         uint32_t *vvv;
 5137 
 5138                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 5139                         SCTP_INP_WLOCK(inp);
 5140                         inp->sctp_ep.initial_sequence_debug = *vvv;
 5141                         SCTP_INP_WUNLOCK(inp);
 5142                         break;
 5143                 }
 5144 #endif
 5145         case SCTP_DEFAULT_SEND_PARAM:
 5146                 {
 5147                         struct sctp_sndrcvinfo *s_info;
 5148 
 5149                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 5150                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 5151 
 5152                         if (stcb) {
 5153                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5154                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5155                                 } else {
 5156                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5157                                         error = EINVAL;
 5158                                 }
 5159                                 SCTP_TCB_UNLOCK(stcb);
 5160                         } else {
 5161                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5162                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5163                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
 5164                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 5165                                         SCTP_INP_WLOCK(inp);
 5166                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 5167                                         SCTP_INP_WUNLOCK(inp);
 5168                                 }
 5169                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
 5170                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 5171                                         SCTP_INP_RLOCK(inp);
 5172                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5173                                                 SCTP_TCB_LOCK(stcb);
 5174                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 5175                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 5176                                                 }
 5177                                                 SCTP_TCB_UNLOCK(stcb);
 5178                                         }
 5179                                         SCTP_INP_RUNLOCK(inp);
 5180                                 }
 5181                         }
 5182                         break;
 5183                 }
 5184         case SCTP_PEER_ADDR_PARAMS:
 5185                 {
 5186                         struct sctp_paddrparams *paddrp;
 5187                         struct sctp_nets *net;
 5188                         struct sockaddr *addr;
 5189 #if defined(INET) && defined(INET6)
 5190                         struct sockaddr_in sin_store;
 5191 #endif
 5192 
 5193                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 5194                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 5195 
 5196 #if defined(INET) && defined(INET6)
 5197                         if (paddrp->spp_address.ss_family == AF_INET6) {
 5198                                 struct sockaddr_in6 *sin6;
 5199 
 5200                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
 5201                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5202                                         in6_sin6_2_sin(&sin_store, sin6);
 5203                                         addr = (struct sockaddr *)&sin_store;
 5204                                 } else {
 5205                                         addr = (struct sockaddr *)&paddrp->spp_address;
 5206                                 }
 5207                         } else {
 5208                                 addr = (struct sockaddr *)&paddrp->spp_address;
 5209                         }
 5210 #else
 5211                         addr = (struct sockaddr *)&paddrp->spp_address;
 5212 #endif
 5213                         if (stcb != NULL) {
 5214                                 net = sctp_findnet(stcb, addr);
 5215                         } else {
 5216                                 /*
 5217                                  * We increment here since
 5218                                  * sctp_findassociation_ep_addr() wil do a
 5219                                  * decrement if it finds the stcb as long as
 5220                                  * the locked tcb (last argument) is NOT a
 5221                                  * TCB.. aka NULL.
 5222                                  */
 5223                                 net = NULL;
 5224                                 SCTP_INP_INCR_REF(inp);
 5225                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 5226                                     &net, NULL, NULL);
 5227                                 if (stcb == NULL) {
 5228                                         SCTP_INP_DECR_REF(inp);
 5229                                 }
 5230                         }
 5231                         if ((stcb != NULL) && (net == NULL)) {
 5232 #ifdef INET
 5233                                 if (addr->sa_family == AF_INET) {
 5234 
 5235                                         struct sockaddr_in *sin;
 5236 
 5237                                         sin = (struct sockaddr_in *)addr;
 5238                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 5239                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5240                                                 SCTP_TCB_UNLOCK(stcb);
 5241                                                 error = EINVAL;
 5242                                                 break;
 5243                                         }
 5244                                 } else
 5245 #endif
 5246 #ifdef INET6
 5247                                 if (addr->sa_family == AF_INET6) {
 5248                                         struct sockaddr_in6 *sin6;
 5249 
 5250                                         sin6 = (struct sockaddr_in6 *)addr;
 5251                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5252                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5253                                                 SCTP_TCB_UNLOCK(stcb);
 5254                                                 error = EINVAL;
 5255                                                 break;
 5256                                         }
 5257                                 } else
 5258 #endif
 5259                                 {
 5260                                         error = EAFNOSUPPORT;
 5261                                         SCTP_TCB_UNLOCK(stcb);
 5262                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5263                                         break;
 5264                                 }
 5265                         }
 5266                         /* sanity checks */
 5267                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 5268                                 if (stcb)
 5269                                         SCTP_TCB_UNLOCK(stcb);
 5270                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5271                                 return (EINVAL);
 5272                         }
 5273                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 5274                                 if (stcb)
 5275                                         SCTP_TCB_UNLOCK(stcb);
 5276                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5277                                 return (EINVAL);
 5278                         }
 5279                         if (stcb != NULL) {
 5280                                 /************************TCB SPECIFIC SET ******************/
 5281                                 if (net != NULL) {
 5282                                         /************************NET SPECIFIC SET ******************/
 5283                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5284                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 5285                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
 5286                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5287                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 5288                                                 }
 5289                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5290                                         }
 5291                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5292                                                 if (paddrp->spp_hbinterval) {
 5293                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
 5294                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5295                                                         net->heart_beat_delay = 0;
 5296                                                 }
 5297                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5298                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 5299                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5300                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5301                                         }
 5302                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 5303                                                 /* on demand HB */
 5304                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5305                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 5306                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5307                                         }
 5308                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 5309                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5310                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5311                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
 5312                                                 }
 5313                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5314                                                 net->mtu = paddrp->spp_pathmtu;
 5315                                                 switch (net->ro._l_addr.sa.sa_family) {
 5316 #ifdef INET
 5317                                                 case AF_INET:
 5318                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
 5319                                                         break;
 5320 #endif
 5321 #ifdef INET6
 5322                                                 case AF_INET6:
 5323                                                         net->mtu += SCTP_MIN_OVERHEAD;
 5324                                                         break;
 5325 #endif
 5326                                                 default:
 5327                                                         break;
 5328                                                 }
 5329                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 5330                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
 5331                                                 }
 5332                                         }
 5333                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5334                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5335                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5336                                                 }
 5337                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5338                                         }
 5339                                         if (paddrp->spp_pathmaxrxt) {
 5340                                                 if (net->dest_state & SCTP_ADDR_PF) {
 5341                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5342                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 5343                                                         }
 5344                                                 } else {
 5345                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5346                                                             (net->error_count > net->pf_threshold)) {
 5347                                                                 net->dest_state |= SCTP_ADDR_PF;
 5348                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5349                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5350                                                                     stcb->sctp_ep, stcb, net,
 5351                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
 5352                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5353                                                         }
 5354                                                 }
 5355                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5356                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 5357                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5358                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5359                                                         }
 5360                                                 } else {
 5361                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5362                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 5363                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5364                                                         }
 5365                                                 }
 5366                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 5367                                         }
 5368                                         if (paddrp->spp_flags & SPP_DSCP) {
 5369                                                 net->dscp = paddrp->spp_dscp & 0xfc;
 5370                                                 net->dscp |= 0x01;
 5371                                         }
 5372 #ifdef INET6
 5373                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5374                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 5375                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5376                                                         net->flowlabel |= 0x80000000;
 5377                                                 }
 5378                                         }
 5379 #endif
 5380                                 } else {
 5381                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 5382                                         if (paddrp->spp_pathmaxrxt != 0) {
 5383                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 5384                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5385                                                         if (net->dest_state & SCTP_ADDR_PF) {
 5386                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5387                                                                         net->dest_state &= ~SCTP_ADDR_PF;
 5388                                                                 }
 5389                                                         } else {
 5390                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 5391                                                                     (net->error_count > net->pf_threshold)) {
 5392                                                                         net->dest_state |= SCTP_ADDR_PF;
 5393                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5394                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5395                                                                             stcb->sctp_ep, stcb, net,
 5396                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
 5397                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5398                                                                 }
 5399                                                         }
 5400                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5401                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 5402                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5403                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5404                                                                 }
 5405                                                         } else {
 5406                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
 5407                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 5408                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5409                                                                 }
 5410                                                         }
 5411                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
 5412                                                 }
 5413                                         }
 5414                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5415                                                 if (paddrp->spp_hbinterval != 0) {
 5416                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 5417                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5418                                                         stcb->asoc.heart_beat_delay = 0;
 5419                                                 }
 5420                                                 /* Turn back on the timer */
 5421                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5422                                                         if (paddrp->spp_hbinterval != 0) {
 5423                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
 5424                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5425                                                                 net->heart_beat_delay = 0;
 5426                                                         }
 5427                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 5428                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 5429                                                         }
 5430                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 5431                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
 5432                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 5433                                                 }
 5434                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5435                                         }
 5436                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5437                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5438                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
 5439                                                                 net->dest_state |= SCTP_ADDR_NOHB;
 5440                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 5441                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 5442                                                                             inp, stcb, net,
 5443                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
 5444                                                                 }
 5445                                                         }
 5446                                                 }
 5447                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5448                                         }
 5449                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 5450                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5451                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5452                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 5453                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
 5454                                                         }
 5455                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
 5456                                                         net->mtu = paddrp->spp_pathmtu;
 5457                                                         switch (net->ro._l_addr.sa.sa_family) {
 5458 #ifdef INET
 5459                                                         case AF_INET:
 5460                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
 5461                                                                 break;
 5462 #endif
 5463 #ifdef INET6
 5464                                                         case AF_INET6:
 5465                                                                 net->mtu += SCTP_MIN_OVERHEAD;
 5466                                                                 break;
 5467 #endif
 5468                                                         default:
 5469                                                                 break;
 5470                                                         }
 5471                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 5472                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
 5473                                                         }
 5474                                                 }
 5475                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
 5476                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5477                                         }
 5478                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5479                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5480                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 5481                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 5482                                                         }
 5483                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 5484                                                 }
 5485                                                 stcb->asoc.default_mtu = 0;
 5486                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5487                                         }
 5488                                         if (paddrp->spp_flags & SPP_DSCP) {
 5489                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5490                                                         net->dscp = paddrp->spp_dscp & 0xfc;
 5491                                                         net->dscp |= 0x01;
 5492                                                 }
 5493                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
 5494                                                 stcb->asoc.default_dscp |= 0x01;
 5495                                         }
 5496 #ifdef INET6
 5497                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5498                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5499                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 5500                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5501                                                                 net->flowlabel |= 0x80000000;
 5502                                                         }
 5503                                                 }
 5504                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5505                                                 stcb->asoc.default_flowlabel |= 0x80000000;
 5506                                         }
 5507 #endif
 5508                                 }
 5509                                 SCTP_TCB_UNLOCK(stcb);
 5510                         } else {
 5511                                 /************************NO TCB, SET TO default stuff ******************/
 5512                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5513                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5514                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 5515                                         SCTP_INP_WLOCK(inp);
 5516                                         /*
 5517                                          * For the TOS/FLOWLABEL stuff you
 5518                                          * set it with the options on the
 5519                                          * socket
 5520                                          */
 5521                                         if (paddrp->spp_pathmaxrxt != 0) {
 5522                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
 5523                                         }
 5524                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 5525                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5526                                         else if (paddrp->spp_hbinterval != 0) {
 5527                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 5528                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
 5529                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5530                                         }
 5531                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5532                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5533                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5534                                                 } else if (paddrp->spp_hbinterval) {
 5535                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5536                                                 }
 5537                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5538                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5539                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5540                                         }
 5541                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5542                                                 inp->sctp_ep.default_mtu = 0;
 5543                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5544                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 5545                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
 5546                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
 5547                                                 }
 5548                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5549                                         }
 5550                                         if (paddrp->spp_flags & SPP_DSCP) {
 5551                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
 5552                                                 inp->sctp_ep.default_dscp |= 0x01;
 5553                                         }
 5554 #ifdef INET6
 5555                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5556                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 5557                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5558                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
 5559                                                 }
 5560                                         }
 5561 #endif
 5562                                         SCTP_INP_WUNLOCK(inp);
 5563                                 } else {
 5564                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5565                                         error = EINVAL;
 5566                                 }
 5567                         }
 5568                         break;
 5569                 }
 5570         case SCTP_RTOINFO:
 5571                 {
 5572                         struct sctp_rtoinfo *srto;
 5573                         uint32_t new_init, new_min, new_max;
 5574 
 5575                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
 5576                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 5577 
 5578                         if (stcb) {
 5579                                 if (srto->srto_initial)
 5580                                         new_init = srto->srto_initial;
 5581                                 else
 5582                                         new_init = stcb->asoc.initial_rto;
 5583                                 if (srto->srto_max)
 5584                                         new_max = srto->srto_max;
 5585                                 else
 5586                                         new_max = stcb->asoc.maxrto;
 5587                                 if (srto->srto_min)
 5588                                         new_min = srto->srto_min;
 5589                                 else
 5590                                         new_min = stcb->asoc.minrto;
 5591                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 5592                                         stcb->asoc.initial_rto = new_init;
 5593                                         stcb->asoc.maxrto = new_max;
 5594                                         stcb->asoc.minrto = new_min;
 5595                                 } else {
 5596                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5597                                         error = EINVAL;
 5598                                 }
 5599                                 SCTP_TCB_UNLOCK(stcb);
 5600                         } else {
 5601                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5602                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5603                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 5604                                         SCTP_INP_WLOCK(inp);
 5605                                         if (srto->srto_initial)
 5606                                                 new_init = srto->srto_initial;
 5607                                         else
 5608                                                 new_init = inp->sctp_ep.initial_rto;
 5609                                         if (srto->srto_max)
 5610                                                 new_max = srto->srto_max;
 5611                                         else
 5612                                                 new_max = inp->sctp_ep.sctp_maxrto;
 5613                                         if (srto->srto_min)
 5614                                                 new_min = srto->srto_min;
 5615                                         else
 5616                                                 new_min = inp->sctp_ep.sctp_minrto;
 5617                                         if ((new_min <= new_init) && (new_init <= new_max)) {
 5618                                                 inp->sctp_ep.initial_rto = new_init;
 5619                                                 inp->sctp_ep.sctp_maxrto = new_max;
 5620                                                 inp->sctp_ep.sctp_minrto = new_min;
 5621                                         } else {
 5622                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5623                                                 error = EINVAL;
 5624                                         }
 5625                                         SCTP_INP_WUNLOCK(inp);
 5626                                 } else {
 5627                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5628                                         error = EINVAL;
 5629                                 }
 5630                         }
 5631                         break;
 5632                 }
 5633         case SCTP_ASSOCINFO:
 5634                 {
 5635                         struct sctp_assocparams *sasoc;
 5636 
 5637                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
 5638                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 5639                         if (sasoc->sasoc_cookie_life) {
 5640                                 /* boundary check the cookie life */
 5641                                 if (sasoc->sasoc_cookie_life < 1000)
 5642                                         sasoc->sasoc_cookie_life = 1000;
 5643                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 5644                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 5645                                 }
 5646                         }
 5647                         if (stcb) {
 5648                                 if (sasoc->sasoc_asocmaxrxt)
 5649                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 5650                                 if (sasoc->sasoc_cookie_life) {
 5651                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5652                                 }
 5653                                 SCTP_TCB_UNLOCK(stcb);
 5654                         } else {
 5655                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5656                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5657                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 5658                                         SCTP_INP_WLOCK(inp);
 5659                                         if (sasoc->sasoc_asocmaxrxt)
 5660                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 5661                                         if (sasoc->sasoc_cookie_life) {
 5662                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5663                                         }
 5664                                         SCTP_INP_WUNLOCK(inp);
 5665                                 } else {
 5666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5667                                         error = EINVAL;
 5668                                 }
 5669                         }
 5670                         break;
 5671                 }
 5672         case SCTP_INITMSG:
 5673                 {
 5674                         struct sctp_initmsg *sinit;
 5675 
 5676                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
 5677                         SCTP_INP_WLOCK(inp);
 5678                         if (sinit->sinit_num_ostreams)
 5679                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
 5680 
 5681                         if (sinit->sinit_max_instreams)
 5682                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
 5683 
 5684                         if (sinit->sinit_max_attempts)
 5685                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
 5686 
 5687                         if (sinit->sinit_max_init_timeo)
 5688                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
 5689                         SCTP_INP_WUNLOCK(inp);
 5690                         break;
 5691                 }
 5692         case SCTP_PRIMARY_ADDR:
 5693                 {
 5694                         struct sctp_setprim *spa;
 5695                         struct sctp_nets *net;
 5696                         struct sockaddr *addr;
 5697 #if defined(INET) && defined(INET6)
 5698                         struct sockaddr_in sin_store;
 5699 #endif
 5700 
 5701                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 5702                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 5703 
 5704 #if defined(INET) && defined(INET6)
 5705                         if (spa->ssp_addr.ss_family == AF_INET6) {
 5706                                 struct sockaddr_in6 *sin6;
 5707 
 5708                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
 5709                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5710                                         in6_sin6_2_sin(&sin_store, sin6);
 5711                                         addr = (struct sockaddr *)&sin_store;
 5712                                 } else {
 5713                                         addr = (struct sockaddr *)&spa->ssp_addr;
 5714                                 }
 5715                         } else {
 5716                                 addr = (struct sockaddr *)&spa->ssp_addr;
 5717                         }
 5718 #else
 5719                         addr = (struct sockaddr *)&spa->ssp_addr;
 5720 #endif
 5721                         if (stcb != NULL) {
 5722                                 net = sctp_findnet(stcb, addr);
 5723                         } else {
 5724                                 /*
 5725                                  * We increment here since
 5726                                  * sctp_findassociation_ep_addr() wil do a
 5727                                  * decrement if it finds the stcb as long as
 5728                                  * the locked tcb (last argument) is NOT a
 5729                                  * TCB.. aka NULL.
 5730                                  */
 5731                                 net = NULL;
 5732                                 SCTP_INP_INCR_REF(inp);
 5733                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 5734                                     &net, NULL, NULL);
 5735                                 if (stcb == NULL) {
 5736                                         SCTP_INP_DECR_REF(inp);
 5737                                 }
 5738                         }
 5739 
 5740                         if ((stcb != NULL) && (net != NULL)) {
 5741                                 if (net != stcb->asoc.primary_destination) {
 5742                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 5743                                                 /* Ok we need to set it */
 5744                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
 5745                                                         if ((stcb->asoc.alternate) &&
 5746                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
 5747                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
 5748                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
 5749                                                                 stcb->asoc.alternate = NULL;
 5750                                                         }
 5751                                                 } else {
 5752                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5753                                                         error = EINVAL;
 5754                                                 }
 5755                                         } else {
 5756                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5757                                                 error = EINVAL;
 5758                                         }
 5759                                 }
 5760                         } else {
 5761                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5762                                 error = EINVAL;
 5763                         }
 5764                         if (stcb != NULL) {
 5765                                 SCTP_TCB_UNLOCK(stcb);
 5766                         }
 5767                         break;
 5768                 }
 5769         case SCTP_SET_DYNAMIC_PRIMARY:
 5770                 {
 5771                         union sctp_sockstore *ss;
 5772 
 5773                         error = priv_check(curthread,
 5774                             PRIV_NETINET_RESERVEDPORT);
 5775                         if (error)
 5776                                 break;
 5777 
 5778                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
 5779                         /* SUPER USER CHECK? */
 5780                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
 5781                         break;
 5782                 }
 5783         case SCTP_SET_PEER_PRIMARY_ADDR:
 5784                 {
 5785                         struct sctp_setpeerprim *sspp;
 5786                         struct sockaddr *addr;
 5787 #if defined(INET) && defined(INET6)
 5788                         struct sockaddr_in sin_store;
 5789 #endif
 5790 
 5791                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
 5792                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
 5793                         if (stcb != NULL) {
 5794                                 struct sctp_ifa *ifa;
 5795 
 5796 #if defined(INET) && defined(INET6)
 5797                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
 5798                                         struct sockaddr_in6 *sin6;
 5799 
 5800                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
 5801                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 5802                                                 in6_sin6_2_sin(&sin_store, sin6);
 5803                                                 addr = (struct sockaddr *)&sin_store;
 5804                                         } else {
 5805                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
 5806                                         }
 5807                                 } else {
 5808                                         addr = (struct sockaddr *)&sspp->sspp_addr;
 5809                                 }
 5810 #else
 5811                                 addr = (struct sockaddr *)&sspp->sspp_addr;
 5812 #endif
 5813                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
 5814                                 if (ifa == NULL) {
 5815                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5816                                         error = EINVAL;
 5817                                         goto out_of_it;
 5818                                 }
 5819                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 5820                                         /*
 5821                                          * Must validate the ifa found is in
 5822                                          * our ep
 5823                                          */
 5824                                         struct sctp_laddr *laddr;
 5825                                         int found = 0;
 5826 
 5827                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 5828                                                 if (laddr->ifa == NULL) {
 5829                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
 5830                                                             __func__);
 5831                                                         continue;
 5832                                                 }
 5833                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
 5834                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
 5835                                                         continue;
 5836                                                 }
 5837                                                 if (laddr->ifa == ifa) {
 5838                                                         found = 1;
 5839                                                         break;
 5840                                                 }
 5841                                         }
 5842                                         if (!found) {
 5843                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5844                                                 error = EINVAL;
 5845                                                 goto out_of_it;
 5846                                         }
 5847                                 } else {
 5848                                         switch (addr->sa_family) {
 5849 #ifdef INET
 5850                                         case AF_INET:
 5851                                                 {
 5852                                                         struct sockaddr_in *sin;
 5853 
 5854                                                         sin = (struct sockaddr_in *)addr;
 5855                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 5856                                                             &sin->sin_addr) != 0) {
 5857                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5858                                                                 error = EINVAL;
 5859                                                                 goto out_of_it;
 5860                                                         }
 5861                                                         break;
 5862                                                 }
 5863 #endif
 5864 #ifdef INET6
 5865                                         case AF_INET6:
 5866                                                 {
 5867                                                         struct sockaddr_in6 *sin6;
 5868 
 5869                                                         sin6 = (struct sockaddr_in6 *)addr;
 5870                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 5871                                                             &sin6->sin6_addr) != 0) {
 5872                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5873                                                                 error = EINVAL;
 5874                                                                 goto out_of_it;
 5875                                                         }
 5876                                                         break;
 5877                                                 }
 5878 #endif
 5879                                         default:
 5880                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5881                                                 error = EINVAL;
 5882                                                 goto out_of_it;
 5883                                         }
 5884                                 }
 5885                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
 5886                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5887                                         error = EINVAL;
 5888                                 }
 5889                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 5890                 out_of_it:
 5891                                 SCTP_TCB_UNLOCK(stcb);
 5892                         } else {
 5893                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5894                                 error = EINVAL;
 5895                         }
 5896                         break;
 5897                 }
 5898         case SCTP_BINDX_ADD_ADDR:
 5899                 {
 5900                         struct sctp_getaddresses *addrs;
 5901                         struct thread *td;
 5902 
 5903                         td = (struct thread *)p;
 5904                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 5905                             optsize);
 5906 #ifdef INET
 5907                         if (addrs->addr->sa_family == AF_INET) {
 5908                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5909                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5910                                         error = EINVAL;
 5911                                         break;
 5912                                 }
 5913                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5914                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5915                                         break;
 5916                                 }
 5917                         } else
 5918 #endif
 5919 #ifdef INET6
 5920                         if (addrs->addr->sa_family == AF_INET6) {
 5921                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5922                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5923                                         error = EINVAL;
 5924                                         break;
 5925                                 }
 5926                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5927                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5928                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5929                                         break;
 5930                                 }
 5931                         } else
 5932 #endif
 5933                         {
 5934                                 error = EAFNOSUPPORT;
 5935                                 break;
 5936                         }
 5937                         sctp_bindx_add_address(so, inp, addrs->addr,
 5938                             addrs->sget_assoc_id, vrf_id,
 5939                             &error, p);
 5940                         break;
 5941                 }
 5942         case SCTP_BINDX_REM_ADDR:
 5943                 {
 5944                         struct sctp_getaddresses *addrs;
 5945                         struct thread *td;
 5946 
 5947                         td = (struct thread *)p;
 5948 
 5949                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 5950 #ifdef INET
 5951                         if (addrs->addr->sa_family == AF_INET) {
 5952                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5953                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5954                                         error = EINVAL;
 5955                                         break;
 5956                                 }
 5957                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5958                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5959                                         break;
 5960                                 }
 5961                         } else
 5962 #endif
 5963 #ifdef INET6
 5964                         if (addrs->addr->sa_family == AF_INET6) {
 5965                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5966                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5967                                         error = EINVAL;
 5968                                         break;
 5969                                 }
 5970                                 if (td != NULL &&
 5971                                     (error = prison_local_ip6(td->td_ucred,
 5972                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5973                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5974                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5975                                         break;
 5976                                 }
 5977                         } else
 5978 #endif
 5979                         {
 5980                                 error = EAFNOSUPPORT;
 5981                                 break;
 5982                         }
 5983                         sctp_bindx_delete_address(inp, addrs->addr,
 5984                             addrs->sget_assoc_id, vrf_id,
 5985                             &error);
 5986                         break;
 5987                 }
 5988         case SCTP_EVENT:
 5989                 {
 5990                         struct sctp_event *event;
 5991                         uint32_t event_type;
 5992 
 5993                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
 5994                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 5995                         switch (event->se_type) {
 5996                         case SCTP_ASSOC_CHANGE:
 5997                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 5998                                 break;
 5999                         case SCTP_PEER_ADDR_CHANGE:
 6000                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 6001                                 break;
 6002                         case SCTP_REMOTE_ERROR:
 6003                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 6004                                 break;
 6005                         case SCTP_SEND_FAILED:
 6006                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 6007                                 break;
 6008                         case SCTP_SHUTDOWN_EVENT:
 6009                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 6010                                 break;
 6011                         case SCTP_ADAPTATION_INDICATION:
 6012                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 6013                                 break;
 6014                         case SCTP_PARTIAL_DELIVERY_EVENT:
 6015                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 6016                                 break;
 6017                         case SCTP_AUTHENTICATION_EVENT:
 6018                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 6019                                 break;
 6020                         case SCTP_STREAM_RESET_EVENT:
 6021                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 6022                                 break;
 6023                         case SCTP_SENDER_DRY_EVENT:
 6024                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 6025                                 break;
 6026                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 6027                                 event_type = 0;
 6028                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 6029                                 error = ENOTSUP;
 6030                                 break;
 6031                         case SCTP_ASSOC_RESET_EVENT:
 6032                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 6033                                 break;
 6034                         case SCTP_STREAM_CHANGE_EVENT:
 6035                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 6036                                 break;
 6037                         case SCTP_SEND_FAILED_EVENT:
 6038                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 6039                                 break;
 6040                         default:
 6041                                 event_type = 0;
 6042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6043                                 error = EINVAL;
 6044                                 break;
 6045                         }
 6046                         if (event_type > 0) {
 6047                                 if (stcb) {
 6048                                         if (event->se_on) {
 6049                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 6050                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
 6051                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 6052                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 6053                                                             (stcb->asoc.stream_queue_cnt == 0)) {
 6054                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 6055                                                         }
 6056                                                 }
 6057                                         } else {
 6058                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 6059                                         }
 6060                                         SCTP_TCB_UNLOCK(stcb);
 6061                                 } else {
 6062                                         /*
 6063                                          * We don't want to send up a storm
 6064                                          * of events, so return an error for
 6065                                          * sender dry events
 6066                                          */
 6067                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
 6068                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
 6069                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
 6070                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
 6071                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
 6072                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 6073                                                 error = ENOTSUP;
 6074                                                 break;
 6075                                         }
 6076                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6077                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6078                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
 6079                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 6080                                                 SCTP_INP_WLOCK(inp);
 6081                                                 if (event->se_on) {
 6082                                                         sctp_feature_on(inp, event_type);
 6083                                                 } else {
 6084                                                         sctp_feature_off(inp, event_type);
 6085                                                 }
 6086                                                 SCTP_INP_WUNLOCK(inp);
 6087                                         }
 6088                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
 6089                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 6090                                                 SCTP_INP_RLOCK(inp);
 6091                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6092                                                         SCTP_TCB_LOCK(stcb);
 6093                                                         if (event->se_on) {
 6094                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 6095                                                         } else {
 6096                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 6097                                                         }
 6098                                                         SCTP_TCB_UNLOCK(stcb);
 6099                                                 }
 6100                                                 SCTP_INP_RUNLOCK(inp);
 6101                                         }
 6102                                 }
 6103                         }
 6104                         break;
 6105                 }
 6106         case SCTP_RECVRCVINFO:
 6107                 {
 6108                         int *onoff;
 6109 
 6110                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 6111                         SCTP_INP_WLOCK(inp);
 6112                         if (*onoff != 0) {
 6113                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 6114                         } else {
 6115                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 6116                         }
 6117                         SCTP_INP_WUNLOCK(inp);
 6118                         break;
 6119                 }
 6120         case SCTP_RECVNXTINFO:
 6121                 {
 6122                         int *onoff;
 6123 
 6124                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 6125                         SCTP_INP_WLOCK(inp);
 6126                         if (*onoff != 0) {
 6127                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 6128                         } else {
 6129                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 6130                         }
 6131                         SCTP_INP_WUNLOCK(inp);
 6132                         break;
 6133                 }
 6134         case SCTP_DEFAULT_SNDINFO:
 6135                 {
 6136                         struct sctp_sndinfo *info;
 6137                         uint16_t policy;
 6138 
 6139                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
 6140                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 6141 
 6142                         if (stcb) {
 6143                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 6144                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 6145                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 6146                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 6147                                         stcb->asoc.def_send.sinfo_flags |= policy;
 6148                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 6149                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 6150                                 } else {
 6151                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6152                                         error = EINVAL;
 6153                                 }
 6154                                 SCTP_TCB_UNLOCK(stcb);
 6155                         } else {
 6156                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6157                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6158                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
 6159                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 6160                                         SCTP_INP_WLOCK(inp);
 6161                                         inp->def_send.sinfo_stream = info->snd_sid;
 6162                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 6163                                         inp->def_send.sinfo_flags = info->snd_flags;
 6164                                         inp->def_send.sinfo_flags |= policy;
 6165                                         inp->def_send.sinfo_ppid = info->snd_ppid;
 6166                                         inp->def_send.sinfo_context = info->snd_context;
 6167                                         SCTP_INP_WUNLOCK(inp);
 6168                                 }
 6169                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
 6170                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 6171                                         SCTP_INP_RLOCK(inp);
 6172                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6173                                                 SCTP_TCB_LOCK(stcb);
 6174                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 6175                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 6176                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 6177                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 6178                                                         stcb->asoc.def_send.sinfo_flags |= policy;
 6179                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 6180                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 6181                                                 }
 6182                                                 SCTP_TCB_UNLOCK(stcb);
 6183                                         }
 6184                                         SCTP_INP_RUNLOCK(inp);
 6185                                 }
 6186                         }
 6187                         break;
 6188                 }
 6189         case SCTP_DEFAULT_PRINFO:
 6190                 {
 6191                         struct sctp_default_prinfo *info;
 6192 
 6193                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
 6194                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 6195 
 6196                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
 6197                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6198                                 error = EINVAL;
 6199                                 break;
 6200                         }
 6201                         if (stcb) {
 6202                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 6203                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 6204                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 6205                                 SCTP_TCB_UNLOCK(stcb);
 6206                         } else {
 6207                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6208                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6209                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
 6210                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 6211                                         SCTP_INP_WLOCK(inp);
 6212                                         inp->def_send.sinfo_flags &= 0xfff0;
 6213                                         inp->def_send.sinfo_flags |= info->pr_policy;
 6214                                         inp->def_send.sinfo_timetolive = info->pr_value;
 6215                                         SCTP_INP_WUNLOCK(inp);
 6216                                 }
 6217                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
 6218                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 6219                                         SCTP_INP_RLOCK(inp);
 6220                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 6221                                                 SCTP_TCB_LOCK(stcb);
 6222                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 6223                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 6224                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 6225                                                 SCTP_TCB_UNLOCK(stcb);
 6226                                         }
 6227                                         SCTP_INP_RUNLOCK(inp);
 6228                                 }
 6229                         }
 6230                         break;
 6231                 }
 6232         case SCTP_PEER_ADDR_THLDS:
 6233                 /* Applies to the specific association */
 6234                 {
 6235                         struct sctp_paddrthlds *thlds;
 6236                         struct sctp_nets *net;
 6237                         struct sockaddr *addr;
 6238 #if defined(INET) && defined(INET6)
 6239                         struct sockaddr_in sin_store;
 6240 #endif
 6241 
 6242                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
 6243                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 6244 
 6245 #if defined(INET) && defined(INET6)
 6246                         if (thlds->spt_address.ss_family == AF_INET6) {
 6247                                 struct sockaddr_in6 *sin6;
 6248 
 6249                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
 6250                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 6251                                         in6_sin6_2_sin(&sin_store, sin6);
 6252                                         addr = (struct sockaddr *)&sin_store;
 6253                                 } else {
 6254                                         addr = (struct sockaddr *)&thlds->spt_address;
 6255                                 }
 6256                         } else {
 6257                                 addr = (struct sockaddr *)&thlds->spt_address;
 6258                         }
 6259 #else
 6260                         addr = (struct sockaddr *)&thlds->spt_address;
 6261 #endif
 6262                         if (stcb != NULL) {
 6263                                 net = sctp_findnet(stcb, addr);
 6264                         } else {
 6265                                 /*
 6266                                  * We increment here since
 6267                                  * sctp_findassociation_ep_addr() wil do a
 6268                                  * decrement if it finds the stcb as long as
 6269                                  * the locked tcb (last argument) is NOT a
 6270                                  * TCB.. aka NULL.
 6271                                  */
 6272                                 net = NULL;
 6273                                 SCTP_INP_INCR_REF(inp);
 6274                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
 6275                                     &net, NULL, NULL);
 6276                                 if (stcb == NULL) {
 6277                                         SCTP_INP_DECR_REF(inp);
 6278                                 }
 6279                         }
 6280                         if ((stcb != NULL) && (net == NULL)) {
 6281 #ifdef INET
 6282                                 if (addr->sa_family == AF_INET) {
 6283 
 6284                                         struct sockaddr_in *sin;
 6285 
 6286                                         sin = (struct sockaddr_in *)addr;
 6287                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 6288                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6289                                                 SCTP_TCB_UNLOCK(stcb);
 6290                                                 error = EINVAL;
 6291                                                 break;
 6292                                         }
 6293                                 } else
 6294 #endif
 6295 #ifdef INET6
 6296                                 if (addr->sa_family == AF_INET6) {
 6297                                         struct sockaddr_in6 *sin6;
 6298 
 6299                                         sin6 = (struct sockaddr_in6 *)addr;
 6300                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 6301                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6302                                                 SCTP_TCB_UNLOCK(stcb);
 6303                                                 error = EINVAL;
 6304                                                 break;
 6305                                         }
 6306                                 } else
 6307 #endif
 6308                                 {
 6309                                         error = EAFNOSUPPORT;
 6310                                         SCTP_TCB_UNLOCK(stcb);
 6311                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6312                                         break;
 6313                                 }
 6314                         }
 6315                         if (thlds->spt_pathcpthld != 0xffff) {
 6316                                 error = EINVAL;
 6317                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6318                                 break;
 6319                         }
 6320                         if (stcb != NULL) {
 6321                                 if (net != NULL) {
 6322                                         net->failure_threshold = thlds->spt_pathmaxrxt;
 6323                                         net->pf_threshold = thlds->spt_pathpfthld;
 6324                                         if (net->dest_state & SCTP_ADDR_PF) {
 6325                                                 if ((net->error_count > net->failure_threshold) ||
 6326                                                     (net->error_count <= net->pf_threshold)) {
 6327                                                         net->dest_state &= ~SCTP_ADDR_PF;
 6328                                                 }
 6329                                         } else {
 6330                                                 if ((net->error_count > net->pf_threshold) &&
 6331                                                     (net->error_count <= net->failure_threshold)) {
 6332                                                         net->dest_state |= SCTP_ADDR_PF;
 6333                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 6334                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 6335                                                             stcb->sctp_ep, stcb, net,
 6336                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
 6337                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 6338                                                 }
 6339                                         }
 6340                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 6341                                                 if (net->error_count > net->failure_threshold) {
 6342                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 6343                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 6344                                                 }
 6345                                         } else {
 6346                                                 if (net->error_count <= net->failure_threshold) {
 6347                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 6348                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 6349                                                 }
 6350                                         }
 6351                                 } else {
 6352                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6353                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
 6354                                                 net->pf_threshold = thlds->spt_pathpfthld;
 6355                                                 if (net->dest_state & SCTP_ADDR_PF) {
 6356                                                         if ((net->error_count > net->failure_threshold) ||
 6357                                                             (net->error_count <= net->pf_threshold)) {
 6358                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 6359                                                         }
 6360                                                 } else {
 6361                                                         if ((net->error_count > net->pf_threshold) &&
 6362                                                             (net->error_count <= net->failure_threshold)) {
 6363                                                                 net->dest_state |= SCTP_ADDR_PF;
 6364                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 6365                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
 6366                                                                     stcb->sctp_ep, stcb, net,
 6367                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
 6368                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 6369                                                         }
 6370                                                 }
 6371                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 6372                                                         if (net->error_count > net->failure_threshold) {
 6373                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 6374                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 6375                                                         }
 6376                                                 } else {
 6377                                                         if (net->error_count <= net->failure_threshold) {
 6378                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 6379                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 6380                                                         }
 6381                                                 }
 6382                                         }
 6383                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
 6384                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
 6385                                 }
 6386                                 SCTP_TCB_UNLOCK(stcb);
 6387                         } else {
 6388                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6389                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6390                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 6391                                         SCTP_INP_WLOCK(inp);
 6392                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
 6393                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
 6394                                         SCTP_INP_WUNLOCK(inp);
 6395                                 } else {
 6396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6397                                         error = EINVAL;
 6398                                 }
 6399                         }
 6400                         break;
 6401                 }
 6402         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 6403                 {
 6404                         struct sctp_udpencaps *encaps;
 6405                         struct sctp_nets *net;
 6406                         struct sockaddr *addr;
 6407 #if defined(INET) && defined(INET6)
 6408                         struct sockaddr_in sin_store;
 6409 #endif
 6410 
 6411                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
 6412                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 6413 
 6414 #if defined(INET) && defined(INET6)
 6415                         if (encaps->sue_address.ss_family == AF_INET6) {
 6416                                 struct sockaddr_in6 *sin6;
 6417 
 6418                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
 6419                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
 6420                                         in6_sin6_2_sin(&sin_store, sin6);
 6421                                         addr = (struct sockaddr *)&sin_store;
 6422                                 } else {
 6423                                         addr = (struct sockaddr *)&encaps->sue_address;
 6424                                 }
 6425                         } else {
 6426                                 addr = (struct sockaddr *)&encaps->sue_address;
 6427                         }
 6428 #else
 6429                         addr = (struct sockaddr *)&encaps->sue_address;
 6430 #endif
 6431                         if (stcb != NULL) {
 6432                                 net = sctp_findnet(stcb, addr);
 6433                         } else {
 6434                                 /*
 6435                                  * We increment here since
 6436                                  * sctp_findassociation_ep_addr() wil do a
 6437                                  * decrement if it finds the stcb as long as
 6438                                  * the locked tcb (last argument) is NOT a
 6439                                  * TCB.. aka NULL.
 6440                                  */
 6441                                 net = NULL;
 6442                                 SCTP_INP_INCR_REF(inp);
 6443                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
 6444                                 if (stcb == NULL) {
 6445                                         SCTP_INP_DECR_REF(inp);
 6446                                 }
 6447                         }
 6448                         if ((stcb != NULL) && (net == NULL)) {
 6449 #ifdef INET
 6450                                 if (addr->sa_family == AF_INET) {
 6451 
 6452                                         struct sockaddr_in *sin;
 6453 
 6454                                         sin = (struct sockaddr_in *)addr;
 6455                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
 6456                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6457                                                 SCTP_TCB_UNLOCK(stcb);
 6458                                                 error = EINVAL;
 6459                                                 break;
 6460                                         }
 6461                                 } else
 6462 #endif
 6463 #ifdef INET6
 6464                                 if (addr->sa_family == AF_INET6) {
 6465                                         struct sockaddr_in6 *sin6;
 6466 
 6467                                         sin6 = (struct sockaddr_in6 *)addr;
 6468                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 6469                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6470                                                 SCTP_TCB_UNLOCK(stcb);
 6471                                                 error = EINVAL;
 6472                                                 break;
 6473                                         }
 6474                                 } else
 6475 #endif
 6476                                 {
 6477                                         error = EAFNOSUPPORT;
 6478                                         SCTP_TCB_UNLOCK(stcb);
 6479                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6480                                         break;
 6481                                 }
 6482                         }
 6483                         if (stcb != NULL) {
 6484                                 if (net != NULL) {
 6485                                         net->port = encaps->sue_port;
 6486                                 } else {
 6487                                         stcb->asoc.port = encaps->sue_port;
 6488                                 }
 6489                                 SCTP_TCB_UNLOCK(stcb);
 6490                         } else {
 6491                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6492                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6493                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 6494                                         SCTP_INP_WLOCK(inp);
 6495                                         inp->sctp_ep.port = encaps->sue_port;
 6496                                         SCTP_INP_WUNLOCK(inp);
 6497                                 } else {
 6498                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6499                                         error = EINVAL;
 6500                                 }
 6501                         }
 6502                         break;
 6503                 }
 6504         case SCTP_ECN_SUPPORTED:
 6505                 {
 6506                         struct sctp_assoc_value *av;
 6507 
 6508                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6509                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6510 
 6511                         if (stcb) {
 6512                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6513                                 error = EINVAL;
 6514                                 SCTP_TCB_UNLOCK(stcb);
 6515                         } else {
 6516                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6517                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6518                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6519                                         SCTP_INP_WLOCK(inp);
 6520                                         if (av->assoc_value == 0) {
 6521                                                 inp->ecn_supported = 0;
 6522                                         } else {
 6523                                                 inp->ecn_supported = 1;
 6524                                         }
 6525                                         SCTP_INP_WUNLOCK(inp);
 6526                                 } else {
 6527                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6528                                         error = EINVAL;
 6529                                 }
 6530                         }
 6531                         break;
 6532                 }
 6533         case SCTP_PR_SUPPORTED:
 6534                 {
 6535                         struct sctp_assoc_value *av;
 6536 
 6537                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6538                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6539 
 6540                         if (stcb) {
 6541                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6542                                 error = EINVAL;
 6543                                 SCTP_TCB_UNLOCK(stcb);
 6544                         } else {
 6545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6547                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6548                                         SCTP_INP_WLOCK(inp);
 6549                                         if (av->assoc_value == 0) {
 6550                                                 inp->prsctp_supported = 0;
 6551                                         } else {
 6552                                                 inp->prsctp_supported = 1;
 6553                                         }
 6554                                         SCTP_INP_WUNLOCK(inp);
 6555                                 } else {
 6556                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6557                                         error = EINVAL;
 6558                                 }
 6559                         }
 6560                         break;
 6561                 }
 6562         case SCTP_AUTH_SUPPORTED:
 6563                 {
 6564                         struct sctp_assoc_value *av;
 6565 
 6566                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6567                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6568 
 6569                         if (stcb) {
 6570                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6571                                 error = EINVAL;
 6572                                 SCTP_TCB_UNLOCK(stcb);
 6573                         } else {
 6574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6576                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6577                                         if ((av->assoc_value == 0) &&
 6578                                             (inp->asconf_supported == 1)) {
 6579                                                 /*
 6580                                                  * AUTH is required for
 6581                                                  * ASCONF
 6582                                                  */
 6583                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6584                                                 error = EINVAL;
 6585                                         } else {
 6586                                                 SCTP_INP_WLOCK(inp);
 6587                                                 if (av->assoc_value == 0) {
 6588                                                         inp->auth_supported = 0;
 6589                                                 } else {
 6590                                                         inp->auth_supported = 1;
 6591                                                 }
 6592                                                 SCTP_INP_WUNLOCK(inp);
 6593                                         }
 6594                                 } else {
 6595                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6596                                         error = EINVAL;
 6597                                 }
 6598                         }
 6599                         break;
 6600                 }
 6601         case SCTP_ASCONF_SUPPORTED:
 6602                 {
 6603                         struct sctp_assoc_value *av;
 6604 
 6605                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6606                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6607 
 6608                         if (stcb) {
 6609                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6610                                 error = EINVAL;
 6611                                 SCTP_TCB_UNLOCK(stcb);
 6612                         } else {
 6613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6615                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6616                                         if ((av->assoc_value != 0) &&
 6617                                             (inp->auth_supported == 0)) {
 6618                                                 /*
 6619                                                  * AUTH is required for
 6620                                                  * ASCONF
 6621                                                  */
 6622                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6623                                                 error = EINVAL;
 6624                                         } else {
 6625                                                 SCTP_INP_WLOCK(inp);
 6626                                                 if (av->assoc_value == 0) {
 6627                                                         inp->asconf_supported = 0;
 6628                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
 6629                                                             inp->sctp_ep.local_auth_chunks);
 6630                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
 6631                                                             inp->sctp_ep.local_auth_chunks);
 6632                                                 } else {
 6633                                                         inp->asconf_supported = 1;
 6634                                                         sctp_auth_add_chunk(SCTP_ASCONF,
 6635                                                             inp->sctp_ep.local_auth_chunks);
 6636                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
 6637                                                             inp->sctp_ep.local_auth_chunks);
 6638                                                 }
 6639                                                 SCTP_INP_WUNLOCK(inp);
 6640                                         }
 6641                                 } else {
 6642                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6643                                         error = EINVAL;
 6644                                 }
 6645                         }
 6646                         break;
 6647                 }
 6648         case SCTP_RECONFIG_SUPPORTED:
 6649                 {
 6650                         struct sctp_assoc_value *av;
 6651 
 6652                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6653                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6654 
 6655                         if (stcb) {
 6656                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6657                                 error = EINVAL;
 6658                                 SCTP_TCB_UNLOCK(stcb);
 6659                         } else {
 6660                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6661                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6662                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6663                                         SCTP_INP_WLOCK(inp);
 6664                                         if (av->assoc_value == 0) {
 6665                                                 inp->reconfig_supported = 0;
 6666                                         } else {
 6667                                                 inp->reconfig_supported = 1;
 6668                                         }
 6669                                         SCTP_INP_WUNLOCK(inp);
 6670                                 } else {
 6671                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6672                                         error = EINVAL;
 6673                                 }
 6674                         }
 6675                         break;
 6676                 }
 6677         case SCTP_NRSACK_SUPPORTED:
 6678                 {
 6679                         struct sctp_assoc_value *av;
 6680 
 6681                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6682                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6683 
 6684                         if (stcb) {
 6685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6686                                 error = EINVAL;
 6687                                 SCTP_TCB_UNLOCK(stcb);
 6688                         } else {
 6689                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6690                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6691                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6692                                         SCTP_INP_WLOCK(inp);
 6693                                         if (av->assoc_value == 0) {
 6694                                                 inp->nrsack_supported = 0;
 6695                                         } else {
 6696                                                 inp->nrsack_supported = 1;
 6697                                         }
 6698                                         SCTP_INP_WUNLOCK(inp);
 6699                                 } else {
 6700                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6701                                         error = EINVAL;
 6702                                 }
 6703                         }
 6704                         break;
 6705                 }
 6706         case SCTP_PKTDROP_SUPPORTED:
 6707                 {
 6708                         struct sctp_assoc_value *av;
 6709 
 6710                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6711                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6712 
 6713                         if (stcb) {
 6714                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6715                                 error = EINVAL;
 6716                                 SCTP_TCB_UNLOCK(stcb);
 6717                         } else {
 6718                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6719                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6720                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6721                                         SCTP_INP_WLOCK(inp);
 6722                                         if (av->assoc_value == 0) {
 6723                                                 inp->pktdrop_supported = 0;
 6724                                         } else {
 6725                                                 inp->pktdrop_supported = 1;
 6726                                         }
 6727                                         SCTP_INP_WUNLOCK(inp);
 6728                                 } else {
 6729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6730                                         error = EINVAL;
 6731                                 }
 6732                         }
 6733                         break;
 6734                 }
 6735         case SCTP_MAX_CWND:
 6736                 {
 6737                         struct sctp_assoc_value *av;
 6738                         struct sctp_nets *net;
 6739 
 6740                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 6741                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 6742 
 6743                         if (stcb) {
 6744                                 stcb->asoc.max_cwnd = av->assoc_value;
 6745                                 if (stcb->asoc.max_cwnd > 0) {
 6746                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6747                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
 6748                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
 6749                                                         net->cwnd = stcb->asoc.max_cwnd;
 6750                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
 6751                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
 6752                                                         }
 6753                                                 }
 6754                                         }
 6755                                 }
 6756                                 SCTP_TCB_UNLOCK(stcb);
 6757                         } else {
 6758                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 6759                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 6760                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 6761                                         SCTP_INP_WLOCK(inp);
 6762                                         inp->max_cwnd = av->assoc_value;
 6763                                         SCTP_INP_WUNLOCK(inp);
 6764                                 } else {
 6765                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6766                                         error = EINVAL;
 6767                                 }
 6768                         }
 6769                         break;
 6770                 }
 6771         default:
 6772                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 6773                 error = ENOPROTOOPT;
 6774                 break;
 6775         }                       /* end switch (opt) */
 6776         return (error);
 6777 }
 6778 
 6779 int
 6780 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 6781 {
 6782         void *optval = NULL;
 6783         size_t optsize = 0;
 6784         void *p;
 6785         int error = 0;
 6786         struct sctp_inpcb *inp;
 6787 
 6788         if ((sopt->sopt_level == SOL_SOCKET) &&
 6789             (sopt->sopt_name == SO_SETFIB)) {
 6790                 inp = (struct sctp_inpcb *)so->so_pcb;
 6791                 if (inp == NULL) {
 6792                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 6793                         return (EINVAL);
 6794                 }
 6795                 SCTP_INP_WLOCK(inp);
 6796                 inp->fibnum = so->so_fibnum;
 6797                 SCTP_INP_WUNLOCK(inp);
 6798                 return (0);
 6799         }
 6800         if (sopt->sopt_level != IPPROTO_SCTP) {
 6801                 /* wrong proto level... send back up to IP */
 6802 #ifdef INET6
 6803                 if (INP_CHECK_SOCKAF(so, AF_INET6))
 6804                         error = ip6_ctloutput(so, sopt);
 6805 #endif                          /* INET6 */
 6806 #if defined(INET) && defined(INET6)
 6807                 else
 6808 #endif
 6809 #ifdef INET
 6810                         error = ip_ctloutput(so, sopt);
 6811 #endif
 6812                 return (error);
 6813         }
 6814         optsize = sopt->sopt_valsize;
 6815         if (optsize) {
 6816                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
 6817                 if (optval == NULL) {
 6818                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 6819                         return (ENOBUFS);
 6820                 }
 6821                 error = sooptcopyin(sopt, optval, optsize, optsize);
 6822                 if (error) {
 6823                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6824                         goto out;
 6825                 }
 6826         }
 6827         p = (void *)sopt->sopt_td;
 6828         if (sopt->sopt_dir == SOPT_SET) {
 6829                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 6830         } else if (sopt->sopt_dir == SOPT_GET) {
 6831                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 6832         } else {
 6833                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6834                 error = EINVAL;
 6835         }
 6836         if ((error == 0) && (optval != NULL)) {
 6837                 error = sooptcopyout(sopt, optval, optsize);
 6838                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6839         } else if (optval != NULL) {
 6840                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 6841         }
 6842 out:
 6843         return (error);
 6844 }
 6845 
 6846 #ifdef INET
 6847 static int
 6848 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 6849 {
 6850         int error = 0;
 6851         int create_lock_on = 0;
 6852         uint32_t vrf_id;
 6853         struct sctp_inpcb *inp;
 6854         struct sctp_tcb *stcb = NULL;
 6855 
 6856         inp = (struct sctp_inpcb *)so->so_pcb;
 6857         if (inp == NULL) {
 6858                 /* I made the same as TCP since we are not setup? */
 6859                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6860                 return (ECONNRESET);
 6861         }
 6862         if (addr == NULL) {
 6863                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6864                 return EINVAL;
 6865         }
 6866         switch (addr->sa_family) {
 6867 #ifdef INET6
 6868         case AF_INET6:
 6869                 {
 6870                         struct sockaddr_in6 *sin6p;
 6871 
 6872                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
 6873                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6874                                 return (EINVAL);
 6875                         }
 6876                         sin6p = (struct sockaddr_in6 *)addr;
 6877                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
 6878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6879                                 return (error);
 6880                         }
 6881                         break;
 6882                 }
 6883 #endif
 6884 #ifdef INET
 6885         case AF_INET:
 6886                 {
 6887                         struct sockaddr_in *sinp;
 6888 
 6889                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
 6890                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6891                                 return (EINVAL);
 6892                         }
 6893                         sinp = (struct sockaddr_in *)addr;
 6894                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
 6895                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 6896                                 return (error);
 6897                         }
 6898                         break;
 6899                 }
 6900 #endif
 6901         default:
 6902                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 6903                 return (EAFNOSUPPORT);
 6904         }
 6905         SCTP_INP_INCR_REF(inp);
 6906         SCTP_ASOC_CREATE_LOCK(inp);
 6907         create_lock_on = 1;
 6908 
 6909 
 6910         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 6911             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 6912                 /* Should I really unlock ? */
 6913                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 6914                 error = EFAULT;
 6915                 goto out_now;
 6916         }
 6917 #ifdef INET6
 6918         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 6919             (addr->sa_family == AF_INET6)) {
 6920                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6921                 error = EINVAL;
 6922                 goto out_now;
 6923         }
 6924 #endif
 6925         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 6926             SCTP_PCB_FLAGS_UNBOUND) {
 6927                 /* Bind a ephemeral port */
 6928                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 6929                 if (error) {
 6930                         goto out_now;
 6931                 }
 6932         }
 6933         /* Now do we connect? */
 6934         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 6935             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 6936                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6937                 error = EINVAL;
 6938                 goto out_now;
 6939         }
 6940         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 6941             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 6942                 /* We are already connected AND the TCP model */
 6943                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 6944                 error = EADDRINUSE;
 6945                 goto out_now;
 6946         }
 6947         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 6948                 SCTP_INP_RLOCK(inp);
 6949                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6950                 SCTP_INP_RUNLOCK(inp);
 6951         } else {
 6952                 /*
 6953                  * We increment here since sctp_findassociation_ep_addr()
 6954                  * will do a decrement if it finds the stcb as long as the
 6955                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
 6956                  */
 6957                 SCTP_INP_INCR_REF(inp);
 6958                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
 6959                 if (stcb == NULL) {
 6960                         SCTP_INP_DECR_REF(inp);
 6961                 } else {
 6962                         SCTP_TCB_UNLOCK(stcb);
 6963                 }
 6964         }
 6965         if (stcb != NULL) {
 6966                 /* Already have or am bring up an association */
 6967                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 6968                 error = EALREADY;
 6969                 goto out_now;
 6970         }
 6971         vrf_id = inp->def_vrf_id;
 6972         /* We are GOOD to go */
 6973         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
 6974             inp->sctp_ep.pre_open_stream_count,
 6975             inp->sctp_ep.port, p);
 6976         if (stcb == NULL) {
 6977                 /* Gak! no memory */
 6978                 goto out_now;
 6979         }
 6980         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 6981                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 6982                 /* Set the connected flag so we can queue data */
 6983                 soisconnecting(so);
 6984         }
 6985         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 6986         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 6987 
 6988         /* initialize authentication parameters for the assoc */
 6989         sctp_initialize_auth_params(inp, stcb);
 6990 
 6991         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 6992         SCTP_TCB_UNLOCK(stcb);
 6993 out_now:
 6994         if (create_lock_on) {
 6995                 SCTP_ASOC_CREATE_UNLOCK(inp);
 6996         }
 6997         SCTP_INP_DECR_REF(inp);
 6998         return (error);
 6999 }
 7000 #endif
 7001 
 7002 int
 7003 sctp_listen(struct socket *so, int backlog, struct thread *p)
 7004 {
 7005         /*
 7006          * Note this module depends on the protocol processing being called
 7007          * AFTER any socket level flags and backlog are applied to the
 7008          * socket. The traditional way that the socket flags are applied is
 7009          * AFTER protocol processing. We have made a change to the
 7010          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
 7011          * place if the socket API for SCTP is to work properly.
 7012          */
 7013 
 7014         int error = 0;
 7015         struct sctp_inpcb *inp;
 7016 
 7017         inp = (struct sctp_inpcb *)so->so_pcb;
 7018         if (inp == NULL) {
 7019                 /* I made the same as TCP since we are not setup? */
 7020                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7021                 return (ECONNRESET);
 7022         }
 7023         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
 7024                 /* See if we have a listener */
 7025                 struct sctp_inpcb *tinp;
 7026                 union sctp_sockstore store;
 7027 
 7028                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 7029                         /* not bound all */
 7030                         struct sctp_laddr *laddr;
 7031 
 7032                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 7033                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
 7034                                 switch (store.sa.sa_family) {
 7035 #ifdef INET
 7036                                 case AF_INET:
 7037                                         store.sin.sin_port = inp->sctp_lport;
 7038                                         break;
 7039 #endif
 7040 #ifdef INET6
 7041                                 case AF_INET6:
 7042                                         store.sin6.sin6_port = inp->sctp_lport;
 7043                                         break;
 7044 #endif
 7045                                 default:
 7046                                         break;
 7047                                 }
 7048                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
 7049                                 if (tinp && (tinp != inp) &&
 7050                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 7051                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 7052                                     (tinp->sctp_socket->so_qlimit)) {
 7053                                         /*
 7054                                          * we have a listener already and
 7055                                          * its not this inp.
 7056                                          */
 7057                                         SCTP_INP_DECR_REF(tinp);
 7058                                         return (EADDRINUSE);
 7059                                 } else if (tinp) {
 7060                                         SCTP_INP_DECR_REF(tinp);
 7061                                 }
 7062                         }
 7063                 } else {
 7064                         /* Setup a local addr bound all */
 7065                         memset(&store, 0, sizeof(store));
 7066 #ifdef INET6
 7067                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 7068                                 store.sa.sa_family = AF_INET6;
 7069                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
 7070                         }
 7071 #endif
 7072 #ifdef INET
 7073                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 7074                                 store.sa.sa_family = AF_INET;
 7075                                 store.sa.sa_len = sizeof(struct sockaddr_in);
 7076                         }
 7077 #endif
 7078                         switch (store.sa.sa_family) {
 7079 #ifdef INET
 7080                         case AF_INET:
 7081                                 store.sin.sin_port = inp->sctp_lport;
 7082                                 break;
 7083 #endif
 7084 #ifdef INET6
 7085                         case AF_INET6:
 7086                                 store.sin6.sin6_port = inp->sctp_lport;
 7087                                 break;
 7088 #endif
 7089                         default:
 7090                                 break;
 7091                         }
 7092                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
 7093                         if (tinp && (tinp != inp) &&
 7094                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 7095                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 7096                             (tinp->sctp_socket->so_qlimit)) {
 7097                                 /*
 7098                                  * we have a listener already and its not
 7099                                  * this inp.
 7100                                  */
 7101                                 SCTP_INP_DECR_REF(tinp);
 7102                                 return (EADDRINUSE);
 7103                         } else if (tinp) {
 7104                                 SCTP_INP_DECR_REF(tinp);
 7105                         }
 7106                 }
 7107         }
 7108         SCTP_INP_RLOCK(inp);
 7109 #ifdef SCTP_LOCK_LOGGING
 7110         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
 7111                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
 7112         }
 7113 #endif
 7114         SOCK_LOCK(so);
 7115         error = solisten_proto_check(so);
 7116         SOCK_UNLOCK(so);
 7117         if (error) {
 7118                 SCTP_INP_RUNLOCK(inp);
 7119                 return (error);
 7120         }
 7121         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
 7122             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 7123                 /*
 7124                  * The unlucky case - We are in the tcp pool with this guy.
 7125                  * - Someone else is in the main inp slot. - We must move
 7126                  * this guy (the listener) to the main slot - We must then
 7127                  * move the guy that was listener to the TCP Pool.
 7128                  */
 7129                 if (sctp_swap_inpcb_for_listen(inp)) {
 7130                         SCTP_INP_RUNLOCK(inp);
 7131                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 7132                         return (EADDRINUSE);
 7133                 }
 7134         }
 7135         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 7136             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 7137                 /* We are already connected AND the TCP model */
 7138                 SCTP_INP_RUNLOCK(inp);
 7139                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 7140                 return (EADDRINUSE);
 7141         }
 7142         SCTP_INP_RUNLOCK(inp);
 7143         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 7144                 /* We must do a bind. */
 7145                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 7146                         /* bind error, probably perm */
 7147                         return (error);
 7148                 }
 7149         }
 7150         SOCK_LOCK(so);
 7151         /* It appears for 7.0 and on, we must always call this. */
 7152         solisten_proto(so, backlog);
 7153         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 7154                 /* remove the ACCEPTCONN flag for one-to-many sockets */
 7155                 so->so_options &= ~SO_ACCEPTCONN;
 7156         }
 7157         if (backlog == 0) {
 7158                 /* turning off listen */
 7159                 so->so_options &= ~SO_ACCEPTCONN;
 7160         }
 7161         SOCK_UNLOCK(so);
 7162         return (error);
 7163 }
 7164 
 7165 static int sctp_defered_wakeup_cnt = 0;
 7166 
 7167 int
 7168 sctp_accept(struct socket *so, struct sockaddr **addr)
 7169 {
 7170         struct sctp_tcb *stcb;
 7171         struct sctp_inpcb *inp;
 7172         union sctp_sockstore store;
 7173 #ifdef INET6
 7174         int error;
 7175 #endif
 7176         inp = (struct sctp_inpcb *)so->so_pcb;
 7177 
 7178         if (inp == NULL) {
 7179                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7180                 return (ECONNRESET);
 7181         }
 7182         SCTP_INP_RLOCK(inp);
 7183         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 7184                 SCTP_INP_RUNLOCK(inp);
 7185                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 7186                 return (EOPNOTSUPP);
 7187         }
 7188         if (so->so_state & SS_ISDISCONNECTED) {
 7189                 SCTP_INP_RUNLOCK(inp);
 7190                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
 7191                 return (ECONNABORTED);
 7192         }
 7193         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7194         if (stcb == NULL) {
 7195                 SCTP_INP_RUNLOCK(inp);
 7196                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7197                 return (ECONNRESET);
 7198         }
 7199         SCTP_TCB_LOCK(stcb);
 7200         SCTP_INP_RUNLOCK(inp);
 7201         store = stcb->asoc.primary_destination->ro._l_addr;
 7202         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
 7203         SCTP_TCB_UNLOCK(stcb);
 7204         switch (store.sa.sa_family) {
 7205 #ifdef INET
 7206         case AF_INET:
 7207                 {
 7208                         struct sockaddr_in *sin;
 7209 
 7210                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7211                         if (sin == NULL)
 7212                                 return (ENOMEM);
 7213                         sin->sin_family = AF_INET;
 7214                         sin->sin_len = sizeof(*sin);
 7215                         sin->sin_port = store.sin.sin_port;
 7216                         sin->sin_addr = store.sin.sin_addr;
 7217                         *addr = (struct sockaddr *)sin;
 7218                         break;
 7219                 }
 7220 #endif
 7221 #ifdef INET6
 7222         case AF_INET6:
 7223                 {
 7224                         struct sockaddr_in6 *sin6;
 7225 
 7226                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 7227                         if (sin6 == NULL)
 7228                                 return (ENOMEM);
 7229                         sin6->sin6_family = AF_INET6;
 7230                         sin6->sin6_len = sizeof(*sin6);
 7231                         sin6->sin6_port = store.sin6.sin6_port;
 7232                         sin6->sin6_addr = store.sin6.sin6_addr;
 7233                         if ((error = sa6_recoverscope(sin6)) != 0) {
 7234                                 SCTP_FREE_SONAME(sin6);
 7235                                 return (error);
 7236                         }
 7237                         *addr = (struct sockaddr *)sin6;
 7238                         break;
 7239                 }
 7240 #endif
 7241         default:
 7242                 /* TSNH */
 7243                 break;
 7244         }
 7245         /* Wake any delayed sleep action */
 7246         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 7247                 SCTP_INP_WLOCK(inp);
 7248                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 7249                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 7250                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 7251                         SCTP_INP_WUNLOCK(inp);
 7252                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
 7253                         if (sowriteable(inp->sctp_socket)) {
 7254                                 sowwakeup_locked(inp->sctp_socket);
 7255                         } else {
 7256                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
 7257                         }
 7258                         SCTP_INP_WLOCK(inp);
 7259                 }
 7260                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 7261                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 7262                         SCTP_INP_WUNLOCK(inp);
 7263                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
 7264                         if (soreadable(inp->sctp_socket)) {
 7265                                 sctp_defered_wakeup_cnt++;
 7266                                 sorwakeup_locked(inp->sctp_socket);
 7267                         } else {
 7268                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
 7269                         }
 7270                         SCTP_INP_WLOCK(inp);
 7271                 }
 7272                 SCTP_INP_WUNLOCK(inp);
 7273         }
 7274         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 7275                 SCTP_TCB_LOCK(stcb);
 7276                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 7277                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
 7278         }
 7279         return (0);
 7280 }
 7281 
 7282 #ifdef INET
 7283 int
 7284 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 7285 {
 7286         struct sockaddr_in *sin;
 7287         uint32_t vrf_id;
 7288         struct sctp_inpcb *inp;
 7289         struct sctp_ifa *sctp_ifa;
 7290 
 7291         /*
 7292          * Do the malloc first in case it blocks.
 7293          */
 7294         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7295         if (sin == NULL)
 7296                 return (ENOMEM);
 7297         sin->sin_family = AF_INET;
 7298         sin->sin_len = sizeof(*sin);
 7299         inp = (struct sctp_inpcb *)so->so_pcb;
 7300         if (!inp) {
 7301                 SCTP_FREE_SONAME(sin);
 7302                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7303                 return (ECONNRESET);
 7304         }
 7305         SCTP_INP_RLOCK(inp);
 7306         sin->sin_port = inp->sctp_lport;
 7307         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 7308                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 7309                         struct sctp_tcb *stcb;
 7310                         struct sockaddr_in *sin_a;
 7311                         struct sctp_nets *net;
 7312                         int fnd;
 7313 
 7314                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7315                         if (stcb == NULL) {
 7316                                 goto notConn;
 7317                         }
 7318                         fnd = 0;
 7319                         sin_a = NULL;
 7320                         SCTP_TCB_LOCK(stcb);
 7321                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 7322                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 7323                                 if (sin_a == NULL)
 7324                                         /* this will make coverity happy */
 7325                                         continue;
 7326 
 7327                                 if (sin_a->sin_family == AF_INET) {
 7328                                         fnd = 1;
 7329                                         break;
 7330                                 }
 7331                         }
 7332                         if ((!fnd) || (sin_a == NULL)) {
 7333                                 /* punt */
 7334                                 SCTP_TCB_UNLOCK(stcb);
 7335                                 goto notConn;
 7336                         }
 7337                         vrf_id = inp->def_vrf_id;
 7338                         sctp_ifa = sctp_source_address_selection(inp,
 7339                             stcb,
 7340                             (sctp_route_t *)&net->ro,
 7341                             net, 0, vrf_id);
 7342                         if (sctp_ifa) {
 7343                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
 7344                                 sctp_free_ifa(sctp_ifa);
 7345                         }
 7346                         SCTP_TCB_UNLOCK(stcb);
 7347                 } else {
 7348                         /* For the bound all case you get back 0 */
 7349         notConn:
 7350                         sin->sin_addr.s_addr = 0;
 7351                 }
 7352 
 7353         } else {
 7354                 /* Take the first IPv4 address in the list */
 7355                 struct sctp_laddr *laddr;
 7356                 int fnd = 0;
 7357 
 7358                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 7359                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 7360                                 struct sockaddr_in *sin_a;
 7361 
 7362                                 sin_a = &laddr->ifa->address.sin;
 7363                                 sin->sin_addr = sin_a->sin_addr;
 7364                                 fnd = 1;
 7365                                 break;
 7366                         }
 7367                 }
 7368                 if (!fnd) {
 7369                         SCTP_FREE_SONAME(sin);
 7370                         SCTP_INP_RUNLOCK(inp);
 7371                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 7372                         return (ENOENT);
 7373                 }
 7374         }
 7375         SCTP_INP_RUNLOCK(inp);
 7376         (*addr) = (struct sockaddr *)sin;
 7377         return (0);
 7378 }
 7379 
 7380 int
 7381 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 7382 {
 7383         struct sockaddr_in *sin;
 7384         int fnd;
 7385         struct sockaddr_in *sin_a;
 7386         struct sctp_inpcb *inp;
 7387         struct sctp_tcb *stcb;
 7388         struct sctp_nets *net;
 7389 
 7390         /* Do the malloc first in case it blocks. */
 7391         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 7392         if (sin == NULL)
 7393                 return (ENOMEM);
 7394         sin->sin_family = AF_INET;
 7395         sin->sin_len = sizeof(*sin);
 7396 
 7397         inp = (struct sctp_inpcb *)so->so_pcb;
 7398         if ((inp == NULL) ||
 7399             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
 7400                 /* UDP type and listeners will drop out here */
 7401                 SCTP_FREE_SONAME(sin);
 7402                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 7403                 return (ENOTCONN);
 7404         }
 7405         SCTP_INP_RLOCK(inp);
 7406         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 7407         if (stcb) {
 7408                 SCTP_TCB_LOCK(stcb);
 7409         }
 7410         SCTP_INP_RUNLOCK(inp);
 7411         if (stcb == NULL) {
 7412                 SCTP_FREE_SONAME(sin);
 7413                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 7414                 return (ECONNRESET);
 7415         }
 7416         fnd = 0;
 7417         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 7418                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 7419                 if (sin_a->sin_family == AF_INET) {
 7420                         fnd = 1;
 7421                         sin->sin_port = stcb->rport;
 7422                         sin->sin_addr = sin_a->sin_addr;
 7423                         break;
 7424                 }
 7425         }
 7426         SCTP_TCB_UNLOCK(stcb);
 7427         if (!fnd) {
 7428                 /* No IPv4 address */
 7429                 SCTP_FREE_SONAME(sin);
 7430                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 7431                 return (ENOENT);
 7432         }
 7433         (*addr) = (struct sockaddr *)sin;
 7434         return (0);
 7435 }
 7436 
 7437 struct pr_usrreqs sctp_usrreqs = {
 7438         .pru_abort = sctp_abort,
 7439         .pru_accept = sctp_accept,
 7440         .pru_attach = sctp_attach,
 7441         .pru_bind = sctp_bind,
 7442         .pru_connect = sctp_connect,
 7443         .pru_control = in_control,
 7444         .pru_close = sctp_close,
 7445         .pru_detach = sctp_close,
 7446         .pru_sopoll = sopoll_generic,
 7447         .pru_flush = sctp_flush,
 7448         .pru_disconnect = sctp_disconnect,
 7449         .pru_listen = sctp_listen,
 7450         .pru_peeraddr = sctp_peeraddr,
 7451         .pru_send = sctp_sendm,
 7452         .pru_shutdown = sctp_shutdown,
 7453         .pru_sockaddr = sctp_ingetaddr,
 7454         .pru_sosend = sctp_sosend,
 7455         .pru_soreceive = sctp_soreceive
 7456 };
 7457 #endif

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