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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

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

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    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/9.2/sys/netinet/sctp_usrreq.c 252966 2013-07-07 16:13:54Z 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 #endif
   43 #include <netinet/sctp_sysctl.h>
   44 #include <netinet/sctp_output.h>
   45 #include <netinet/sctp_uio.h>
   46 #include <netinet/sctp_asconf.h>
   47 #include <netinet/sctputil.h>
   48 #include <netinet/sctp_indata.h>
   49 #include <netinet/sctp_timer.h>
   50 #include <netinet/sctp_auth.h>
   51 #include <netinet/sctp_bsd_addr.h>
   52 #include <netinet/udp.h>
   53 
   54 
   55 
   56 extern struct sctp_cc_functions sctp_cc_functions[];
   57 extern struct sctp_ss_functions sctp_ss_functions[];
   58 
   59 void
   60 sctp_init(void)
   61 {
   62         u_long sb_max_adj;
   63 
   64         /* Initialize and modify the sysctled variables */
   65         sctp_init_sysctls();
   66         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
   67                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
   68         /*
   69          * Allow a user to take no more than 1/2 the number of clusters or
   70          * the SB_MAX whichever is smaller for the send window.
   71          */
   72         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
   73         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
   74             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
   75         /*
   76          * Now for the recv window, should we take the same amount? or
   77          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
   78          * now I will just copy.
   79          */
   80         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
   81         SCTP_BASE_VAR(first_time) = 0;
   82         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
   83         sctp_pcb_init();
   84 #if defined(SCTP_PACKET_LOGGING)
   85         SCTP_BASE_VAR(packet_log_writers) = 0;
   86         SCTP_BASE_VAR(packet_log_end) = 0;
   87         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
   88 #endif
   89 }
   90 
   91 void
   92 sctp_finish(void)
   93 {
   94         sctp_pcb_finish();
   95 }
   96 
   97 
   98 
   99 void
  100 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
  101 {
  102         struct sctp_tmit_chunk *chk;
  103         uint16_t overhead;
  104 
  105         /* Adjust that too */
  106         stcb->asoc.smallest_mtu = nxtsz;
  107         /* now off to subtract IP_DF flag if needed */
  108         overhead = IP_HDR_SIZE;
  109         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
  110                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
  111         }
  112         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
  113                 if ((chk->send_size + overhead) > nxtsz) {
  114                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  115                 }
  116         }
  117         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
  118                 if ((chk->send_size + overhead) > nxtsz) {
  119                         /*
  120                          * For this guy we also mark for immediate resend
  121                          * since we sent to big of chunk
  122                          */
  123                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  124                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
  125                                 sctp_flight_size_decrease(chk);
  126                                 sctp_total_flight_decrease(stcb, chk);
  127                         }
  128                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
  129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
  130                         }
  131                         chk->sent = SCTP_DATAGRAM_RESEND;
  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                                     (uintptr_t) chk->whoTo,
  138                                     chk->rec.data.TSN_seq);
  139                         }
  140                         /* Clear any time so NO RTT is being done */
  141                         chk->do_rtt = 0;
  142                 }
  143         }
  144 }
  145 
  146 #ifdef INET
  147 static void
  148 sctp_notify_mbuf(struct sctp_inpcb *inp,
  149     struct sctp_tcb *stcb,
  150     struct sctp_nets *net,
  151     struct ip *ip,
  152     struct sctphdr *sh)
  153 {
  154         struct icmp *icmph;
  155         int totsz, tmr_stopped = 0;
  156         uint16_t nxtsz;
  157 
  158         /* protection */
  159         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  160             (ip == NULL) || (sh == NULL)) {
  161                 if (stcb != NULL) {
  162                         SCTP_TCB_UNLOCK(stcb);
  163                 }
  164                 return;
  165         }
  166         /* First job is to verify the vtag matches what I would send */
  167         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  168                 SCTP_TCB_UNLOCK(stcb);
  169                 return;
  170         }
  171         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  172             sizeof(struct ip)));
  173         if (icmph->icmp_type != ICMP_UNREACH) {
  174                 /* We only care about unreachable */
  175                 SCTP_TCB_UNLOCK(stcb);
  176                 return;
  177         }
  178         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
  179                 /* not a unreachable message due to frag. */
  180                 SCTP_TCB_UNLOCK(stcb);
  181                 return;
  182         }
  183         totsz = ip->ip_len;
  184 
  185         nxtsz = ntohs(icmph->icmp_nextmtu);
  186         if (nxtsz == 0) {
  187                 /*
  188                  * old type router that does not tell us what the next size
  189                  * mtu is. Rats we will have to guess (in a educated fashion
  190                  * of course)
  191                  */
  192                 nxtsz = sctp_get_prev_mtu(totsz);
  193         }
  194         /* Stop any PMTU timer */
  195         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  196                 tmr_stopped = 1;
  197                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  199         }
  200         /* Adjust destination size limit */
  201         if (net->mtu > nxtsz) {
  202                 net->mtu = nxtsz;
  203                 if (net->port) {
  204                         net->mtu -= sizeof(struct udphdr);
  205                 }
  206         }
  207         /* now what about the ep? */
  208         if (stcb->asoc.smallest_mtu > nxtsz) {
  209                 sctp_pathmtu_adjustment(stcb, nxtsz);
  210         }
  211         if (tmr_stopped)
  212                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  213 
  214         SCTP_TCB_UNLOCK(stcb);
  215 }
  216 
  217 #endif
  218 
  219 void
  220 sctp_notify(struct sctp_inpcb *inp,
  221     struct ip *ip,
  222     struct sctphdr *sh,
  223     struct sockaddr *to,
  224     struct sctp_tcb *stcb,
  225     struct sctp_nets *net)
  226 {
  227 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  228         struct socket *so;
  229 
  230 #endif
  231         struct icmp *icmph;
  232 
  233         /* protection */
  234         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  235             (sh == NULL) || (to == NULL)) {
  236                 if (stcb)
  237                         SCTP_TCB_UNLOCK(stcb);
  238                 return;
  239         }
  240         /* First job is to verify the vtag matches what I would send */
  241         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  242                 SCTP_TCB_UNLOCK(stcb);
  243                 return;
  244         }
  245         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  246             sizeof(struct ip)));
  247         if (icmph->icmp_type != ICMP_UNREACH) {
  248                 /* We only care about unreachable */
  249                 SCTP_TCB_UNLOCK(stcb);
  250                 return;
  251         }
  252         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
  253             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
  254             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  255             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  256             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
  257             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  258             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  259             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  260 
  261                 /*
  262                  * Hmm reachablity problems we must examine closely. If its
  263                  * not reachable, we may have lost a network. Or if there is
  264                  * NO protocol at the other end named SCTP. well we consider
  265                  * it a OOTB abort.
  266                  */
  267                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  268                         /* Ok that destination is NOT reachable */
  269                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  270                         net->dest_state &= ~SCTP_ADDR_PF;
  271                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  272                             stcb, 0,
  273                             (void *)net, SCTP_SO_NOT_LOCKED);
  274                 }
  275                 SCTP_TCB_UNLOCK(stcb);
  276         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
  277             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
  278                 /*
  279                  * Here the peer is either playing tricks on us, including
  280                  * an address that belongs to someone who does not support
  281                  * SCTP OR was a userland implementation that shutdown and
  282                  * now is dead. In either case treat it like a OOTB abort
  283                  * with no TCB
  284                  */
  285                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
  286 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  287                 so = SCTP_INP_SO(inp);
  288                 atomic_add_int(&stcb->asoc.refcnt, 1);
  289                 SCTP_TCB_UNLOCK(stcb);
  290                 SCTP_SOCKET_LOCK(so, 1);
  291                 SCTP_TCB_LOCK(stcb);
  292                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  293 #endif
  294                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  295 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  296                 SCTP_SOCKET_UNLOCK(so, 1);
  297                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  298 #endif
  299                 /* no need to unlock here, since the TCB is gone */
  300         } else {
  301                 SCTP_TCB_UNLOCK(stcb);
  302         }
  303 }
  304 
  305 #ifdef INET
  306 void
  307 sctp_ctlinput(cmd, sa, vip)
  308         int cmd;
  309         struct sockaddr *sa;
  310         void *vip;
  311 {
  312         struct ip *ip = vip;
  313         struct sctphdr *sh;
  314         uint32_t vrf_id;
  315 
  316         /* FIX, for non-bsd is this right? */
  317         vrf_id = SCTP_DEFAULT_VRFID;
  318         if (sa->sa_family != AF_INET ||
  319             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  320                 return;
  321         }
  322         if (PRC_IS_REDIRECT(cmd)) {
  323                 ip = 0;
  324         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  325                 return;
  326         }
  327         if (ip) {
  328                 struct sctp_inpcb *inp = NULL;
  329                 struct sctp_tcb *stcb = NULL;
  330                 struct sctp_nets *net = NULL;
  331                 struct sockaddr_in to, from;
  332 
  333                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
  334                 bzero(&to, sizeof(to));
  335                 bzero(&from, sizeof(from));
  336                 from.sin_family = to.sin_family = AF_INET;
  337                 from.sin_len = to.sin_len = sizeof(to);
  338                 from.sin_port = sh->src_port;
  339                 from.sin_addr = ip->ip_src;
  340                 to.sin_port = sh->dest_port;
  341                 to.sin_addr = ip->ip_dst;
  342 
  343                 /*
  344                  * 'to' holds the dest of the packet that failed to be sent.
  345                  * 'from' holds our local endpoint address. Thus we reverse
  346                  * the to and the from in the lookup.
  347                  */
  348                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
  349                     (struct sockaddr *)&from,
  350                     &inp, &net, 1, vrf_id);
  351                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
  352                         if (cmd != PRC_MSGSIZE) {
  353                                 sctp_notify(inp, ip, sh,
  354                                     (struct sockaddr *)&to, stcb,
  355                                     net);
  356                         } else {
  357                                 /* handle possible ICMP size messages */
  358                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
  359                         }
  360                 } else {
  361                         if ((stcb == NULL) && (inp != NULL)) {
  362                                 /* reduce ref-count */
  363                                 SCTP_INP_WLOCK(inp);
  364                                 SCTP_INP_DECR_REF(inp);
  365                                 SCTP_INP_WUNLOCK(inp);
  366                         }
  367                         if (stcb) {
  368                                 SCTP_TCB_UNLOCK(stcb);
  369                         }
  370                 }
  371         }
  372         return;
  373 }
  374 
  375 #endif
  376 
  377 static int
  378 sctp_getcred(SYSCTL_HANDLER_ARGS)
  379 {
  380         struct xucred xuc;
  381         struct sockaddr_in addrs[2];
  382         struct sctp_inpcb *inp;
  383         struct sctp_nets *net;
  384         struct sctp_tcb *stcb;
  385         int error;
  386         uint32_t vrf_id;
  387 
  388         /* FIX, for non-bsd is this right? */
  389         vrf_id = SCTP_DEFAULT_VRFID;
  390 
  391         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  392 
  393         if (error)
  394                 return (error);
  395 
  396         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  397         if (error)
  398                 return (error);
  399 
  400         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
  401             sintosa(&addrs[0]),
  402             &inp, &net, 1, vrf_id);
  403         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  404                 if ((inp != NULL) && (stcb == NULL)) {
  405                         /* reduce ref-count */
  406                         SCTP_INP_WLOCK(inp);
  407                         SCTP_INP_DECR_REF(inp);
  408                         goto cred_can_cont;
  409                 }
  410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  411                 error = ENOENT;
  412                 goto out;
  413         }
  414         SCTP_TCB_UNLOCK(stcb);
  415         /*
  416          * We use the write lock here, only since in the error leg we need
  417          * it. If we used RLOCK, then we would have to
  418          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  419          * Better to use higher wlock.
  420          */
  421         SCTP_INP_WLOCK(inp);
  422 cred_can_cont:
  423         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  424         if (error) {
  425                 SCTP_INP_WUNLOCK(inp);
  426                 goto out;
  427         }
  428         cru2x(inp->sctp_socket->so_cred, &xuc);
  429         SCTP_INP_WUNLOCK(inp);
  430         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  431 out:
  432         return (error);
  433 }
  434 
  435 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  436     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  437 
  438 
  439 #ifdef INET
  440 static void
  441 sctp_abort(struct socket *so)
  442 {
  443         struct sctp_inpcb *inp;
  444         uint32_t flags;
  445 
  446         inp = (struct sctp_inpcb *)so->so_pcb;
  447         if (inp == NULL) {
  448                 return;
  449         }
  450 sctp_must_try_again:
  451         flags = inp->sctp_flags;
  452 #ifdef SCTP_LOG_CLOSING
  453         sctp_log_closing(inp, NULL, 17);
  454 #endif
  455         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  456             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  457 #ifdef SCTP_LOG_CLOSING
  458                 sctp_log_closing(inp, NULL, 16);
  459 #endif
  460                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  461                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  462                 SOCK_LOCK(so);
  463                 SCTP_SB_CLEAR(so->so_snd);
  464                 /*
  465                  * same for the rcv ones, they are only here for the
  466                  * accounting/select.
  467                  */
  468                 SCTP_SB_CLEAR(so->so_rcv);
  469 
  470                 /* Now null out the reference, we are completely detached. */
  471                 so->so_pcb = NULL;
  472                 SOCK_UNLOCK(so);
  473         } else {
  474                 flags = inp->sctp_flags;
  475                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  476                         goto sctp_must_try_again;
  477                 }
  478         }
  479         return;
  480 }
  481 
  482 static int
  483 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
  484 {
  485         struct sctp_inpcb *inp;
  486         struct inpcb *ip_inp;
  487         int error;
  488         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  489 
  490 #ifdef IPSEC
  491         uint32_t flags;
  492 
  493 #endif
  494 
  495         inp = (struct sctp_inpcb *)so->so_pcb;
  496         if (inp != 0) {
  497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  498                 return (EINVAL);
  499         }
  500         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  501                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  502                 if (error) {
  503                         return (error);
  504                 }
  505         }
  506         error = sctp_inpcb_alloc(so, vrf_id);
  507         if (error) {
  508                 return (error);
  509         }
  510         inp = (struct sctp_inpcb *)so->so_pcb;
  511         SCTP_INP_WLOCK(inp);
  512         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  513         ip_inp = &inp->ip_inp.inp;
  514         ip_inp->inp_vflag |= INP_IPV4;
  515         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
  516 #ifdef IPSEC
  517         error = ipsec_init_policy(so, &ip_inp->inp_sp);
  518 #ifdef SCTP_LOG_CLOSING
  519         sctp_log_closing(inp, NULL, 17);
  520 #endif
  521         if (error != 0) {
  522 try_again:
  523                 flags = inp->sctp_flags;
  524                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  525                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  526 #ifdef SCTP_LOG_CLOSING
  527                         sctp_log_closing(inp, NULL, 15);
  528 #endif
  529                         SCTP_INP_WUNLOCK(inp);
  530                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  531                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  532                 } else {
  533                         flags = inp->sctp_flags;
  534                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  535                                 goto try_again;
  536                         } else {
  537                                 SCTP_INP_WUNLOCK(inp);
  538                         }
  539                 }
  540                 return (error);
  541         }
  542 #endif                          /* IPSEC */
  543         SCTP_INP_WUNLOCK(inp);
  544         return (0);
  545 }
  546 
  547 static int
  548 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  549 {
  550         struct sctp_inpcb *inp;
  551 
  552         inp = (struct sctp_inpcb *)so->so_pcb;
  553         if (inp == NULL) {
  554                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  555                 return (EINVAL);
  556         }
  557         if (addr != NULL) {
  558                 if ((addr->sa_family != AF_INET) ||
  559                     (addr->sa_len != sizeof(struct sockaddr_in))) {
  560                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  561                         return (EINVAL);
  562                 }
  563         }
  564         return (sctp_inpcb_bind(so, addr, NULL, p));
  565 }
  566 
  567 #endif
  568 void
  569 sctp_close(struct socket *so)
  570 {
  571         struct sctp_inpcb *inp;
  572         uint32_t flags;
  573 
  574         inp = (struct sctp_inpcb *)so->so_pcb;
  575         if (inp == NULL)
  576                 return;
  577 
  578         /*
  579          * Inform all the lower layer assoc that we are done.
  580          */
  581 sctp_must_try_again:
  582         flags = inp->sctp_flags;
  583 #ifdef SCTP_LOG_CLOSING
  584         sctp_log_closing(inp, NULL, 17);
  585 #endif
  586         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  587             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  588                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  589                     (so->so_rcv.sb_cc > 0)) {
  590 #ifdef SCTP_LOG_CLOSING
  591                         sctp_log_closing(inp, NULL, 13);
  592 #endif
  593                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  594                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  595                 } else {
  596 #ifdef SCTP_LOG_CLOSING
  597                         sctp_log_closing(inp, NULL, 14);
  598 #endif
  599                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  600                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  601                 }
  602                 /*
  603                  * The socket is now detached, no matter what the state of
  604                  * the SCTP association.
  605                  */
  606                 SOCK_LOCK(so);
  607                 SCTP_SB_CLEAR(so->so_snd);
  608                 /*
  609                  * same for the rcv ones, they are only here for the
  610                  * accounting/select.
  611                  */
  612                 SCTP_SB_CLEAR(so->so_rcv);
  613 
  614                 /* Now null out the reference, we are completely detached. */
  615                 so->so_pcb = NULL;
  616                 SOCK_UNLOCK(so);
  617         } else {
  618                 flags = inp->sctp_flags;
  619                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  620                         goto sctp_must_try_again;
  621                 }
  622         }
  623         return;
  624 }
  625 
  626 
  627 int
  628 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  629     struct mbuf *control, struct thread *p);
  630 
  631 
  632 int
  633 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  634     struct mbuf *control, struct thread *p)
  635 {
  636         struct sctp_inpcb *inp;
  637         int error;
  638 
  639         inp = (struct sctp_inpcb *)so->so_pcb;
  640         if (inp == NULL) {
  641                 if (control) {
  642                         sctp_m_freem(control);
  643                         control = NULL;
  644                 }
  645                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  646                 sctp_m_freem(m);
  647                 return (EINVAL);
  648         }
  649         /* Got to have an to address if we are NOT a connected socket */
  650         if ((addr == NULL) &&
  651             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  652             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
  653                 goto connected_type;
  654         } else if (addr == NULL) {
  655                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  656                 error = EDESTADDRREQ;
  657                 sctp_m_freem(m);
  658                 if (control) {
  659                         sctp_m_freem(control);
  660                         control = NULL;
  661                 }
  662                 return (error);
  663         }
  664 #ifdef INET6
  665         if (addr->sa_family != AF_INET) {
  666                 /* must be a v4 address! */
  667                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  668                 sctp_m_freem(m);
  669                 if (control) {
  670                         sctp_m_freem(control);
  671                         control = NULL;
  672                 }
  673                 error = EDESTADDRREQ;
  674                 return (error);
  675         }
  676 #endif                          /* INET6 */
  677 connected_type:
  678         /* now what about control */
  679         if (control) {
  680                 if (inp->control) {
  681                         SCTP_PRINTF("huh? control set?\n");
  682                         sctp_m_freem(inp->control);
  683                         inp->control = NULL;
  684                 }
  685                 inp->control = control;
  686         }
  687         /* Place the data */
  688         if (inp->pkt) {
  689                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  690                 inp->pkt_last = m;
  691         } else {
  692                 inp->pkt_last = inp->pkt = m;
  693         }
  694         if (
  695         /* FreeBSD uses a flag passed */
  696             ((flags & PRUS_MORETOCOME) == 0)
  697             ) {
  698                 /*
  699                  * note with the current version this code will only be used
  700                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  701                  * re-defining sosend to use the sctp_sosend. One can
  702                  * optionally switch back to this code (by changing back the
  703                  * definitions) but this is not advisable. This code is used
  704                  * by FreeBSD when sending a file with sendfile() though.
  705                  */
  706                 int ret;
  707 
  708                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  709                 inp->pkt = NULL;
  710                 inp->control = NULL;
  711                 return (ret);
  712         } else {
  713                 return (0);
  714         }
  715 }
  716 
  717 int
  718 sctp_disconnect(struct socket *so)
  719 {
  720         struct sctp_inpcb *inp;
  721 
  722         inp = (struct sctp_inpcb *)so->so_pcb;
  723         if (inp == NULL) {
  724                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  725                 return (ENOTCONN);
  726         }
  727         SCTP_INP_RLOCK(inp);
  728         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  729             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  730                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
  731                         /* No connection */
  732                         SCTP_INP_RUNLOCK(inp);
  733                         return (0);
  734                 } else {
  735                         struct sctp_association *asoc;
  736                         struct sctp_tcb *stcb;
  737 
  738                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  739                         if (stcb == NULL) {
  740                                 SCTP_INP_RUNLOCK(inp);
  741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  742                                 return (EINVAL);
  743                         }
  744                         SCTP_TCB_LOCK(stcb);
  745                         asoc = &stcb->asoc;
  746                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  747                                 /* We are about to be freed, out of here */
  748                                 SCTP_TCB_UNLOCK(stcb);
  749                                 SCTP_INP_RUNLOCK(inp);
  750                                 return (0);
  751                         }
  752                         if (((so->so_options & SO_LINGER) &&
  753                             (so->so_linger == 0)) ||
  754                             (so->so_rcv.sb_cc > 0)) {
  755                                 if (SCTP_GET_STATE(asoc) !=
  756                                     SCTP_STATE_COOKIE_WAIT) {
  757                                         /* Left with Data unread */
  758                                         struct mbuf *err;
  759 
  760                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
  761                                         if (err) {
  762                                                 /*
  763                                                  * Fill in the user
  764                                                  * initiated abort
  765                                                  */
  766                                                 struct sctp_paramhdr *ph;
  767 
  768                                                 ph = mtod(err, struct sctp_paramhdr *);
  769                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
  770                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  771                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
  772                                         }
  773                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
  774                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  775                                 }
  776                                 SCTP_INP_RUNLOCK(inp);
  777                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  778                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  779                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  780                                 }
  781                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  782                                 /* No unlock tcb assoc is gone */
  783                                 return (0);
  784                         }
  785                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  786                             TAILQ_EMPTY(&asoc->sent_queue) &&
  787                             (asoc->stream_queue_cnt == 0)) {
  788                                 /* there is nothing queued to send, so done */
  789                                 if (asoc->locked_on_sending) {
  790                                         goto abort_anyway;
  791                                 }
  792                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
  793                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  794                                         /* only send SHUTDOWN 1st time thru */
  795                                         struct sctp_nets *netp;
  796 
  797                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
  798                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  799                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  800                                         }
  801                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  802                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  803                                         sctp_stop_timers_for_shutdown(stcb);
  804                                         if (stcb->asoc.alternate) {
  805                                                 netp = stcb->asoc.alternate;
  806                                         } else {
  807                                                 netp = stcb->asoc.primary_destination;
  808                                         }
  809                                         sctp_send_shutdown(stcb, netp);
  810                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  811                                             stcb->sctp_ep, stcb, netp);
  812                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  813                                             stcb->sctp_ep, stcb, netp);
  814                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  815                                 }
  816                         } else {
  817                                 /*
  818                                  * we still got (or just got) data to send,
  819                                  * so set SHUTDOWN_PENDING
  820                                  */
  821                                 /*
  822                                  * XXX sockets draft says that SCTP_EOF
  823                                  * should be sent with no data. currently,
  824                                  * we will allow user data to be sent first
  825                                  * and move to SHUTDOWN-PENDING
  826                                  */
  827                                 struct sctp_nets *netp;
  828 
  829                                 if (stcb->asoc.alternate) {
  830                                         netp = stcb->asoc.alternate;
  831                                 } else {
  832                                         netp = stcb->asoc.primary_destination;
  833                                 }
  834 
  835                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
  836                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  837                                     netp);
  838                                 if (asoc->locked_on_sending) {
  839                                         /* Locked to send out the data */
  840                                         struct sctp_stream_queue_pending *sp;
  841 
  842                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
  843                                         if (sp == NULL) {
  844                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
  845                                                     asoc->locked_on_sending->stream_no);
  846                                         } else {
  847                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
  848                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
  849                                         }
  850                                 }
  851                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  852                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  853                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  854                                         struct mbuf *op_err;
  855 
  856                         abort_anyway:
  857                                         op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
  858                                             0, M_DONTWAIT, 1, MT_DATA);
  859                                         if (op_err) {
  860                                                 /*
  861                                                  * Fill in the user
  862                                                  * initiated abort
  863                                                  */
  864                                                 struct sctp_paramhdr *ph;
  865 
  866                                                 SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
  867                                                 ph = mtod(op_err, struct sctp_paramhdr *);
  868                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  869                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
  870                                         }
  871                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  872                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  873                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  874                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  875                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  876                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  877                                         }
  878                                         SCTP_INP_RUNLOCK(inp);
  879                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  880                                         return (0);
  881                                 } else {
  882                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  883                                 }
  884                         }
  885                         soisdisconnecting(so);
  886                         SCTP_TCB_UNLOCK(stcb);
  887                         SCTP_INP_RUNLOCK(inp);
  888                         return (0);
  889                 }
  890                 /* not reached */
  891         } else {
  892                 /* UDP model does not support this */
  893                 SCTP_INP_RUNLOCK(inp);
  894                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  895                 return (EOPNOTSUPP);
  896         }
  897 }
  898 
  899 int
  900 sctp_flush(struct socket *so, int how)
  901 {
  902         /*
  903          * We will just clear out the values and let subsequent close clear
  904          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  905          * they will not be able to read the data, the socket will block
  906          * that from happening.
  907          */
  908         struct sctp_inpcb *inp;
  909 
  910         inp = (struct sctp_inpcb *)so->so_pcb;
  911         if (inp == NULL) {
  912                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  913                 return (EINVAL);
  914         }
  915         SCTP_INP_RLOCK(inp);
  916         /* For the 1 to many model this does nothing */
  917         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  918                 SCTP_INP_RUNLOCK(inp);
  919                 return (0);
  920         }
  921         SCTP_INP_RUNLOCK(inp);
  922         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  923                 /*
  924                  * First make sure the sb will be happy, we don't use these
  925                  * except maybe the count
  926                  */
  927                 SCTP_INP_WLOCK(inp);
  928                 SCTP_INP_READ_LOCK(inp);
  929                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
  930                 SCTP_INP_READ_UNLOCK(inp);
  931                 SCTP_INP_WUNLOCK(inp);
  932                 so->so_rcv.sb_cc = 0;
  933                 so->so_rcv.sb_mbcnt = 0;
  934                 so->so_rcv.sb_mb = NULL;
  935         }
  936         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  937                 /*
  938                  * First make sure the sb will be happy, we don't use these
  939                  * except maybe the count
  940                  */
  941                 so->so_snd.sb_cc = 0;
  942                 so->so_snd.sb_mbcnt = 0;
  943                 so->so_snd.sb_mb = NULL;
  944 
  945         }
  946         return (0);
  947 }
  948 
  949 int
  950 sctp_shutdown(struct socket *so)
  951 {
  952         struct sctp_inpcb *inp;
  953 
  954         inp = (struct sctp_inpcb *)so->so_pcb;
  955         if (inp == NULL) {
  956                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  957                 return (EINVAL);
  958         }
  959         SCTP_INP_RLOCK(inp);
  960         /* For UDP model this is a invalid call */
  961         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  962             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
  963                 /* Restore the flags that the soshutdown took away. */
  964                 SOCKBUF_LOCK(&so->so_rcv);
  965                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  966                 SOCKBUF_UNLOCK(&so->so_rcv);
  967                 /* This proc will wakeup for read and do nothing (I hope) */
  968                 SCTP_INP_RUNLOCK(inp);
  969                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  970                 return (EOPNOTSUPP);
  971         }
  972         /*
  973          * Ok if we reach here its the TCP model and it is either a SHUT_WR
  974          * or SHUT_RDWR. This means we put the shutdown flag against it.
  975          */
  976         {
  977                 struct sctp_tcb *stcb;
  978                 struct sctp_association *asoc;
  979 
  980                 if ((so->so_state &
  981                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  982                         SCTP_INP_RUNLOCK(inp);
  983                         return (ENOTCONN);
  984                 }
  985                 socantsendmore(so);
  986 
  987                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  988                 if (stcb == NULL) {
  989                         /*
  990                          * Ok we hit the case that the shutdown call was
  991                          * made after an abort or something. Nothing to do
  992                          * now.
  993                          */
  994                         SCTP_INP_RUNLOCK(inp);
  995                         return (0);
  996                 }
  997                 SCTP_TCB_LOCK(stcb);
  998                 asoc = &stcb->asoc;
  999                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 1000                     TAILQ_EMPTY(&asoc->sent_queue) &&
 1001                     (asoc->stream_queue_cnt == 0)) {
 1002                         if (asoc->locked_on_sending) {
 1003                                 goto abort_anyway;
 1004                         }
 1005                         /* there is nothing queued to send, so I'm done... */
 1006                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 1007                                 /* only send SHUTDOWN the first time through */
 1008                                 struct sctp_nets *netp;
 1009 
 1010                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 1011                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 1012                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 1013                                 }
 1014                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 1015                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 1016                                 sctp_stop_timers_for_shutdown(stcb);
 1017                                 if (stcb->asoc.alternate) {
 1018                                         netp = stcb->asoc.alternate;
 1019                                 } else {
 1020                                         netp = stcb->asoc.primary_destination;
 1021                                 }
 1022                                 sctp_send_shutdown(stcb, netp);
 1023                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 1024                                     stcb->sctp_ep, stcb, netp);
 1025                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 1026                                     stcb->sctp_ep, stcb, netp);
 1027                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 1028                         }
 1029                 } else {
 1030                         /*
 1031                          * we still got (or just got) data to send, so set
 1032                          * SHUTDOWN_PENDING
 1033                          */
 1034                         struct sctp_nets *netp;
 1035 
 1036                         if (stcb->asoc.alternate) {
 1037                                 netp = stcb->asoc.alternate;
 1038                         } else {
 1039                                 netp = stcb->asoc.primary_destination;
 1040                         }
 1041 
 1042                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 1043                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 1044                             netp);
 1045 
 1046                         if (asoc->locked_on_sending) {
 1047                                 /* Locked to send out the data */
 1048                                 struct sctp_stream_queue_pending *sp;
 1049 
 1050                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 1051                                 if (sp == NULL) {
 1052                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 1053                                             asoc->locked_on_sending->stream_no);
 1054                                 } else {
 1055                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 1056                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 1057                                         }
 1058                                 }
 1059                         }
 1060                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 1061                             TAILQ_EMPTY(&asoc->sent_queue) &&
 1062                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 1063                                 struct mbuf *op_err;
 1064 
 1065                 abort_anyway:
 1066                                 op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 1067                                     0, M_DONTWAIT, 1, MT_DATA);
 1068                                 if (op_err) {
 1069                                         /* Fill in the user initiated abort */
 1070                                         struct sctp_paramhdr *ph;
 1071 
 1072                                         SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 1073                                         ph = mtod(op_err, struct sctp_paramhdr *);
 1074                                         ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 1075                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
 1076                                 }
 1077                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 1078                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 1079                                     op_err, SCTP_SO_LOCKED);
 1080                                 goto skip_unlock;
 1081                         } else {
 1082                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 1083                         }
 1084                 }
 1085                 SCTP_TCB_UNLOCK(stcb);
 1086         }
 1087 skip_unlock:
 1088         SCTP_INP_RUNLOCK(inp);
 1089         return (0);
 1090 }
 1091 
 1092 /*
 1093  * copies a "user" presentable address and removes embedded scope, etc.
 1094  * returns 0 on success, 1 on error
 1095  */
 1096 static uint32_t
 1097 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 1098 {
 1099 #ifdef INET6
 1100         struct sockaddr_in6 lsa6;
 1101 
 1102         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 1103             &lsa6);
 1104 #endif
 1105         memcpy(ss, sa, sa->sa_len);
 1106         return (0);
 1107 }
 1108 
 1109 
 1110 
 1111 /*
 1112  * NOTE: assumes addr lock is held
 1113  */
 1114 static size_t
 1115 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1116     struct sctp_tcb *stcb,
 1117     size_t limit,
 1118     struct sockaddr_storage *sas,
 1119     uint32_t vrf_id)
 1120 {
 1121         struct sctp_ifn *sctp_ifn;
 1122         struct sctp_ifa *sctp_ifa;
 1123         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
 1124         size_t actual;
 1125         int ipv4_addr_legal, ipv6_addr_legal;
 1126         struct sctp_vrf *vrf;
 1127 
 1128         actual = 0;
 1129         if (limit <= 0)
 1130                 return (actual);
 1131 
 1132         if (stcb) {
 1133                 /* Turn on all the appropriate scope */
 1134                 loopback_scope = stcb->asoc.scope.loopback_scope;
 1135                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 1136                 local_scope = stcb->asoc.scope.local_scope;
 1137                 site_scope = stcb->asoc.scope.site_scope;
 1138                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 1139                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 1140         } else {
 1141                 /* Use generic values for endpoints. */
 1142                 loopback_scope = 1;
 1143                 ipv4_local_scope = 1;
 1144                 local_scope = 1;
 1145                 site_scope = 1;
 1146                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1147                         ipv6_addr_legal = 1;
 1148                         if (SCTP_IPV6_V6ONLY(inp)) {
 1149                                 ipv4_addr_legal = 0;
 1150                         } else {
 1151                                 ipv4_addr_legal = 1;
 1152                         }
 1153                 } else {
 1154                         ipv6_addr_legal = 0;
 1155                         ipv4_addr_legal = 1;
 1156                 }
 1157         }
 1158         vrf = sctp_find_vrf(vrf_id);
 1159         if (vrf == NULL) {
 1160                 return (0);
 1161         }
 1162         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1163                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1164                         if ((loopback_scope == 0) &&
 1165                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1166                                 /* Skip loopback if loopback_scope not set */
 1167                                 continue;
 1168                         }
 1169                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1170                                 if (stcb) {
 1171                                         /*
 1172                                          * For the BOUND-ALL case, the list
 1173                                          * associated with a TCB is Always
 1174                                          * considered a reverse list.. i.e.
 1175                                          * it lists addresses that are NOT
 1176                                          * part of the association. If this
 1177                                          * is one of those we must skip it.
 1178                                          */
 1179                                         if (sctp_is_addr_restricted(stcb,
 1180                                             sctp_ifa)) {
 1181                                                 continue;
 1182                                         }
 1183                                 }
 1184                                 switch (sctp_ifa->address.sa.sa_family) {
 1185 #ifdef INET
 1186                                 case AF_INET:
 1187                                         if (ipv4_addr_legal) {
 1188                                                 struct sockaddr_in *sin;
 1189 
 1190                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
 1191                                                 if (sin->sin_addr.s_addr == 0) {
 1192                                                         /*
 1193                                                          * we skip
 1194                                                          * unspecifed
 1195                                                          * addresses
 1196                                                          */
 1197                                                         continue;
 1198                                                 }
 1199                                                 if ((ipv4_local_scope == 0) &&
 1200                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1201                                                         continue;
 1202                                                 }
 1203 #ifdef INET6
 1204                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1205                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1206                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1207                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1208                                                         actual += sizeof(struct sockaddr_in6);
 1209                                                 } else {
 1210 #endif
 1211                                                         memcpy(sas, sin, sizeof(*sin));
 1212                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1213                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 1214                                                         actual += sizeof(*sin);
 1215 #ifdef INET6
 1216                                                 }
 1217 #endif
 1218                                                 if (actual >= limit) {
 1219                                                         return (actual);
 1220                                                 }
 1221                                         } else {
 1222                                                 continue;
 1223                                         }
 1224                                         break;
 1225 #endif
 1226 #ifdef INET6
 1227                                 case AF_INET6:
 1228                                         if (ipv6_addr_legal) {
 1229                                                 struct sockaddr_in6 *sin6;
 1230 
 1231                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
 1232                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1233                                                         /*
 1234                                                          * we skip
 1235                                                          * unspecifed
 1236                                                          * addresses
 1237                                                          */
 1238                                                         continue;
 1239                                                 }
 1240                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1241                                                         if (local_scope == 0)
 1242                                                                 continue;
 1243                                                         if (sin6->sin6_scope_id == 0) {
 1244                                                                 if (sa6_recoverscope(sin6) != 0)
 1245                                                                         /*
 1246                                                                          * 
 1247                                                                          * bad
 1248                                                                          * 
 1249                                                                          * li
 1250                                                                          * nk
 1251                                                                          * 
 1252                                                                          * loc
 1253                                                                          * al
 1254                                                                          * 
 1255                                                                          * add
 1256                                                                          * re
 1257                                                                          * ss
 1258                                                                          * */
 1259                                                                         continue;
 1260                                                         }
 1261                                                 }
 1262                                                 if ((site_scope == 0) &&
 1263                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1264                                                         continue;
 1265                                                 }
 1266                                                 memcpy(sas, sin6, sizeof(*sin6));
 1267                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1268                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 1269                                                 actual += sizeof(*sin6);
 1270                                                 if (actual >= limit) {
 1271                                                         return (actual);
 1272                                                 }
 1273                                         } else {
 1274                                                 continue;
 1275                                         }
 1276                                         break;
 1277 #endif
 1278                                 default:
 1279                                         /* TSNH */
 1280                                         break;
 1281                                 }
 1282                         }
 1283                 }
 1284         } else {
 1285                 struct sctp_laddr *laddr;
 1286 
 1287                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1288                         if (stcb) {
 1289                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1290                                         continue;
 1291                                 }
 1292                         }
 1293                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1294                                 continue;
 1295                         switch (laddr->ifa->address.sa.sa_family) {
 1296 #ifdef INET
 1297                         case AF_INET:
 1298                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1299                                 break;
 1300 #endif
 1301 #ifdef INET6
 1302                         case AF_INET6:
 1303                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1304                                 break;
 1305 #endif
 1306                         default:
 1307                                 /* TSNH */
 1308                                 break;
 1309                         }
 1310                         sas = (struct sockaddr_storage *)((caddr_t)sas +
 1311                             laddr->ifa->address.sa.sa_len);
 1312                         actual += laddr->ifa->address.sa.sa_len;
 1313                         if (actual >= limit) {
 1314                                 return (actual);
 1315                         }
 1316                 }
 1317         }
 1318         return (actual);
 1319 }
 1320 
 1321 static size_t
 1322 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1323     struct sctp_tcb *stcb,
 1324     size_t limit,
 1325     struct sockaddr_storage *sas)
 1326 {
 1327         size_t size = 0;
 1328 
 1329         SCTP_IPI_ADDR_RLOCK();
 1330         /* fill up addresses for the endpoint's default vrf */
 1331         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1332             inp->def_vrf_id);
 1333         SCTP_IPI_ADDR_RUNLOCK();
 1334         return (size);
 1335 }
 1336 
 1337 /*
 1338  * NOTE: assumes addr lock is held
 1339  */
 1340 static int
 1341 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1342 {
 1343         int cnt = 0;
 1344         struct sctp_vrf *vrf = NULL;
 1345 
 1346         /*
 1347          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1348          * number of addresses that you COULD get. In reality the sub-set
 1349          * bound may have an exclusion list for a given TCB OR in the
 1350          * bound-all case a TCB may NOT include the loopback or other
 1351          * addresses as well.
 1352          */
 1353         vrf = sctp_find_vrf(vrf_id);
 1354         if (vrf == NULL) {
 1355                 return (0);
 1356         }
 1357         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1358                 struct sctp_ifn *sctp_ifn;
 1359                 struct sctp_ifa *sctp_ifa;
 1360 
 1361                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1362                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1363                                 /* Count them if they are the right type */
 1364                                 switch (sctp_ifa->address.sa.sa_family) {
 1365 #ifdef INET
 1366                                 case AF_INET:
 1367                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1368                                                 cnt += sizeof(struct sockaddr_in6);
 1369                                         else
 1370                                                 cnt += sizeof(struct sockaddr_in);
 1371                                         break;
 1372 #endif
 1373 #ifdef INET6
 1374                                 case AF_INET6:
 1375                                         cnt += sizeof(struct sockaddr_in6);
 1376                                         break;
 1377 #endif
 1378                                 default:
 1379                                         break;
 1380                                 }
 1381                         }
 1382                 }
 1383         } else {
 1384                 struct sctp_laddr *laddr;
 1385 
 1386                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1387                         switch (laddr->ifa->address.sa.sa_family) {
 1388 #ifdef INET
 1389                         case AF_INET:
 1390                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1391                                         cnt += sizeof(struct sockaddr_in6);
 1392                                 else
 1393                                         cnt += sizeof(struct sockaddr_in);
 1394                                 break;
 1395 #endif
 1396 #ifdef INET6
 1397                         case AF_INET6:
 1398                                 cnt += sizeof(struct sockaddr_in6);
 1399                                 break;
 1400 #endif
 1401                         default:
 1402                                 break;
 1403                         }
 1404                 }
 1405         }
 1406         return (cnt);
 1407 }
 1408 
 1409 static int
 1410 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1411 {
 1412         int cnt = 0;
 1413 
 1414         SCTP_IPI_ADDR_RLOCK();
 1415         /* count addresses for the endpoint's default VRF */
 1416         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1417         SCTP_IPI_ADDR_RUNLOCK();
 1418         return (cnt);
 1419 }
 1420 
 1421 static int
 1422 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1423     size_t optsize, void *p, int delay)
 1424 {
 1425         int error = 0;
 1426         int creat_lock_on = 0;
 1427         struct sctp_tcb *stcb = NULL;
 1428         struct sockaddr *sa;
 1429         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1430         uint32_t vrf_id;
 1431         int bad_addresses = 0;
 1432         sctp_assoc_t *a_id;
 1433 
 1434         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1435 
 1436         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1437             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1438                 /* We are already connected AND the TCP model */
 1439                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1440                 return (EADDRINUSE);
 1441         }
 1442         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1443             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1444                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1445                 return (EINVAL);
 1446         }
 1447         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1448                 SCTP_INP_RLOCK(inp);
 1449                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1450                 SCTP_INP_RUNLOCK(inp);
 1451         }
 1452         if (stcb) {
 1453                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1454                 return (EALREADY);
 1455         }
 1456         SCTP_INP_INCR_REF(inp);
 1457         SCTP_ASOC_CREATE_LOCK(inp);
 1458         creat_lock_on = 1;
 1459         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1460             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1461                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1462                 error = EFAULT;
 1463                 goto out_now;
 1464         }
 1465         totaddrp = (int *)optval;
 1466         totaddr = *totaddrp;
 1467         sa = (struct sockaddr *)(totaddrp + 1);
 1468         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
 1469         if ((stcb != NULL) || bad_addresses) {
 1470                 /* Already have or am bring up an association */
 1471                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1472                 creat_lock_on = 0;
 1473                 if (stcb)
 1474                         SCTP_TCB_UNLOCK(stcb);
 1475                 if (bad_addresses == 0) {
 1476                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1477                         error = EALREADY;
 1478                 }
 1479                 goto out_now;
 1480         }
 1481 #ifdef INET6
 1482         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1483             (num_v6 > 0)) {
 1484                 error = EINVAL;
 1485                 goto out_now;
 1486         }
 1487         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1488             (num_v4 > 0)) {
 1489                 struct in6pcb *inp6;
 1490 
 1491                 inp6 = (struct in6pcb *)inp;
 1492                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1493                         /*
 1494                          * if IPV6_V6ONLY flag, ignore connections destined
 1495                          * to a v4 addr or v4-mapped addr
 1496                          */
 1497                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1498                         error = EINVAL;
 1499                         goto out_now;
 1500                 }
 1501         }
 1502 #endif                          /* INET6 */
 1503         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1504             SCTP_PCB_FLAGS_UNBOUND) {
 1505                 /* Bind a ephemeral port */
 1506                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1507                 if (error) {
 1508                         goto out_now;
 1509                 }
 1510         }
 1511         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1512         vrf_id = inp->def_vrf_id;
 1513 
 1514 
 1515         /* We are GOOD to go */
 1516         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
 1517             (struct thread *)p
 1518             );
 1519         if (stcb == NULL) {
 1520                 /* Gak! no memory */
 1521                 goto out_now;
 1522         }
 1523         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1524                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1525                 /* Set the connected flag so we can queue data */
 1526                 soisconnecting(so);
 1527         }
 1528         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 1529         /* move to second address */
 1530         switch (sa->sa_family) {
 1531 #ifdef INET
 1532         case AF_INET:
 1533                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1534                 break;
 1535 #endif
 1536 #ifdef INET6
 1537         case AF_INET6:
 1538                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1539                 break;
 1540 #endif
 1541         default:
 1542                 break;
 1543         }
 1544 
 1545         error = 0;
 1546         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1547         /* Fill in the return id */
 1548         if (error) {
 1549                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
 1550                 goto out_now;
 1551         }
 1552         a_id = (sctp_assoc_t *) optval;
 1553         *a_id = sctp_get_associd(stcb);
 1554 
 1555         /* initialize authentication parameters for the assoc */
 1556         sctp_initialize_auth_params(inp, stcb);
 1557 
 1558         if (delay) {
 1559                 /* doing delayed connection */
 1560                 stcb->asoc.delayed_connection = 1;
 1561                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1562         } else {
 1563                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1564                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1565         }
 1566         SCTP_TCB_UNLOCK(stcb);
 1567         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1568                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1569                 /* Set the connected flag so we can queue data */
 1570                 soisconnecting(so);
 1571         }
 1572 out_now:
 1573         if (creat_lock_on) {
 1574                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1575         }
 1576         SCTP_INP_DECR_REF(inp);
 1577         return (error);
 1578 }
 1579 
 1580 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1581         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1582             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1583                 SCTP_INP_RLOCK(inp); \
 1584                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1585                 if (stcb) { \
 1586                         SCTP_TCB_LOCK(stcb); \
 1587                 } \
 1588                 SCTP_INP_RUNLOCK(inp); \
 1589         } else if (assoc_id > SCTP_ALL_ASSOC) { \
 1590                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1591                 if (stcb == NULL) { \
 1592                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1593                         error = ENOENT; \
 1594                         break; \
 1595                 } \
 1596         } else { \
 1597                 stcb = NULL; \
 1598         } \
 1599   }
 1600 
 1601 
 1602 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
 1603         if (size < sizeof(type)) { \
 1604                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1605                 error = EINVAL; \
 1606                 break; \
 1607         } else { \
 1608                 destp = (type *)srcp; \
 1609         } \
 1610       }
 1611 
 1612 static int
 1613 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1614     void *p)
 1615 {
 1616         struct sctp_inpcb *inp = NULL;
 1617         int error, val = 0;
 1618         struct sctp_tcb *stcb = NULL;
 1619 
 1620         if (optval == NULL) {
 1621                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1622                 return (EINVAL);
 1623         }
 1624         inp = (struct sctp_inpcb *)so->so_pcb;
 1625         if (inp == NULL) {
 1626                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1627                 return EINVAL;
 1628         }
 1629         error = 0;
 1630 
 1631         switch (optname) {
 1632         case SCTP_NODELAY:
 1633         case SCTP_AUTOCLOSE:
 1634         case SCTP_EXPLICIT_EOR:
 1635         case SCTP_AUTO_ASCONF:
 1636         case SCTP_DISABLE_FRAGMENTS:
 1637         case SCTP_I_WANT_MAPPED_V4_ADDR:
 1638         case SCTP_USE_EXT_RCVINFO:
 1639                 SCTP_INP_RLOCK(inp);
 1640                 switch (optname) {
 1641                 case SCTP_DISABLE_FRAGMENTS:
 1642                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
 1643                         break;
 1644                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 1645                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
 1646                         break;
 1647                 case SCTP_AUTO_ASCONF:
 1648                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1649                                 /* only valid for bound all sockets */
 1650                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
 1651                         } else {
 1652                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1653                                 error = EINVAL;
 1654                                 goto flags_out;
 1655                         }
 1656                         break;
 1657                 case SCTP_EXPLICIT_EOR:
 1658                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
 1659                         break;
 1660                 case SCTP_NODELAY:
 1661                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
 1662                         break;
 1663                 case SCTP_USE_EXT_RCVINFO:
 1664                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
 1665                         break;
 1666                 case SCTP_AUTOCLOSE:
 1667                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
 1668                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
 1669                         else
 1670                                 val = 0;
 1671                         break;
 1672 
 1673                 default:
 1674                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1675                         error = ENOPROTOOPT;
 1676                 }               /* end switch (sopt->sopt_name) */
 1677                 if (*optsize < sizeof(val)) {
 1678                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1679                         error = EINVAL;
 1680                 }
 1681 flags_out:
 1682                 SCTP_INP_RUNLOCK(inp);
 1683                 if (error == 0) {
 1684                         /* return the option value */
 1685                         *(int *)optval = val;
 1686                         *optsize = sizeof(val);
 1687                 }
 1688                 break;
 1689         case SCTP_GET_PACKET_LOG:
 1690                 {
 1691 #ifdef  SCTP_PACKET_LOGGING
 1692                         uint8_t *target;
 1693                         int ret;
 1694 
 1695                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
 1696                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
 1697                         *optsize = ret;
 1698 #else
 1699                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1700                         error = EOPNOTSUPP;
 1701 #endif
 1702                         break;
 1703                 }
 1704         case SCTP_REUSE_PORT:
 1705                 {
 1706                         uint32_t *value;
 1707 
 1708                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 1709                                 /* Can't do this for a 1-m socket */
 1710                                 error = EINVAL;
 1711                                 break;
 1712                         }
 1713                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1714                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 1715                         *optsize = sizeof(uint32_t);
 1716                         break;
 1717                 }
 1718         case SCTP_PARTIAL_DELIVERY_POINT:
 1719                 {
 1720                         uint32_t *value;
 1721 
 1722                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1723                         *value = inp->partial_delivery_point;
 1724                         *optsize = sizeof(uint32_t);
 1725                         break;
 1726                 }
 1727         case SCTP_FRAGMENT_INTERLEAVE:
 1728                 {
 1729                         uint32_t *value;
 1730 
 1731                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1732                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
 1733                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
 1734                                         *value = SCTP_FRAG_LEVEL_2;
 1735                                 } else {
 1736                                         *value = SCTP_FRAG_LEVEL_1;
 1737                                 }
 1738                         } else {
 1739                                 *value = SCTP_FRAG_LEVEL_0;
 1740                         }
 1741                         *optsize = sizeof(uint32_t);
 1742                         break;
 1743                 }
 1744         case SCTP_CMT_ON_OFF:
 1745                 {
 1746                         struct sctp_assoc_value *av;
 1747 
 1748                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1749                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1750                         if (stcb) {
 1751                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1752                                 SCTP_TCB_UNLOCK(stcb);
 1753                         } else {
 1754                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1755                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1756                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1757                                         SCTP_INP_RLOCK(inp);
 1758                                         av->assoc_value = inp->sctp_cmt_on_off;
 1759                                         SCTP_INP_RUNLOCK(inp);
 1760                                 } else {
 1761                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1762                                         error = EINVAL;
 1763                                 }
 1764                         }
 1765                         if (error == 0) {
 1766                                 *optsize = sizeof(struct sctp_assoc_value);
 1767                         }
 1768                         break;
 1769                 }
 1770         case SCTP_PLUGGABLE_CC:
 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.congestion_control_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_cc_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_CC_OPTION:
 1797                 {
 1798                         struct sctp_cc_option *cc_opt;
 1799 
 1800                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
 1801                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 1802                         if (stcb == NULL) {
 1803                                 error = EINVAL;
 1804                         } else {
 1805                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 1806                                         error = ENOTSUP;
 1807                                 } else {
 1808                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
 1809                                         *optsize = sizeof(struct sctp_cc_option);
 1810                                 }
 1811                                 SCTP_TCB_UNLOCK(stcb);
 1812                         }
 1813                         break;
 1814                 }
 1815         case SCTP_PLUGGABLE_SS:
 1816                 {
 1817                         struct sctp_assoc_value *av;
 1818 
 1819                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1820                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1821                         if (stcb) {
 1822                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
 1823                                 SCTP_TCB_UNLOCK(stcb);
 1824                         } else {
 1825                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1826                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1827                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1828                                         SCTP_INP_RLOCK(inp);
 1829                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
 1830                                         SCTP_INP_RUNLOCK(inp);
 1831                                 } else {
 1832                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1833                                         error = EINVAL;
 1834                                 }
 1835                         }
 1836                         if (error == 0) {
 1837                                 *optsize = sizeof(struct sctp_assoc_value);
 1838                         }
 1839                         break;
 1840                 }
 1841         case SCTP_SS_VALUE:
 1842                 {
 1843                         struct sctp_stream_value *av;
 1844 
 1845                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
 1846                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1847                         if (stcb) {
 1848                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 1849                                     &av->stream_value) < 0) {
 1850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1851                                         error = EINVAL;
 1852                                 } else {
 1853                                         *optsize = sizeof(struct sctp_stream_value);
 1854                                 }
 1855                                 SCTP_TCB_UNLOCK(stcb);
 1856                         } else {
 1857                                 /*
 1858                                  * Can't get stream value without
 1859                                  * association
 1860                                  */
 1861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1862                                 error = EINVAL;
 1863                         }
 1864                         break;
 1865                 }
 1866         case SCTP_GET_ADDR_LEN:
 1867                 {
 1868                         struct sctp_assoc_value *av;
 1869 
 1870                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1871                         error = EINVAL;
 1872 #ifdef INET
 1873                         if (av->assoc_value == AF_INET) {
 1874                                 av->assoc_value = sizeof(struct sockaddr_in);
 1875                                 error = 0;
 1876                         }
 1877 #endif
 1878 #ifdef INET6
 1879                         if (av->assoc_value == AF_INET6) {
 1880                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1881                                 error = 0;
 1882                         }
 1883 #endif
 1884                         if (error) {
 1885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1886                         } else {
 1887                                 *optsize = sizeof(struct sctp_assoc_value);
 1888                         }
 1889                         break;
 1890                 }
 1891         case SCTP_GET_ASSOC_NUMBER:
 1892                 {
 1893                         uint32_t *value, cnt;
 1894 
 1895                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1896                         cnt = 0;
 1897                         SCTP_INP_RLOCK(inp);
 1898                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1899                                 cnt++;
 1900                         }
 1901                         SCTP_INP_RUNLOCK(inp);
 1902                         *value = cnt;
 1903                         *optsize = sizeof(uint32_t);
 1904                         break;
 1905                 }
 1906         case SCTP_GET_ASSOC_ID_LIST:
 1907                 {
 1908                         struct sctp_assoc_ids *ids;
 1909                         unsigned int at, limit;
 1910 
 1911                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1912                         at = 0;
 1913                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1914                         SCTP_INP_RLOCK(inp);
 1915                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1916                                 if (at < limit) {
 1917                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1918                                 } else {
 1919                                         error = EINVAL;
 1920                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1921                                         break;
 1922                                 }
 1923                         }
 1924                         SCTP_INP_RUNLOCK(inp);
 1925                         if (error == 0) {
 1926                                 ids->gaids_number_of_ids = at;
 1927                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1928                         }
 1929                         break;
 1930                 }
 1931         case SCTP_CONTEXT:
 1932                 {
 1933                         struct sctp_assoc_value *av;
 1934 
 1935                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1936                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1937 
 1938                         if (stcb) {
 1939                                 av->assoc_value = stcb->asoc.context;
 1940                                 SCTP_TCB_UNLOCK(stcb);
 1941                         } else {
 1942                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1943                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1944                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1945                                         SCTP_INP_RLOCK(inp);
 1946                                         av->assoc_value = inp->sctp_context;
 1947                                         SCTP_INP_RUNLOCK(inp);
 1948                                 } else {
 1949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1950                                         error = EINVAL;
 1951                                 }
 1952                         }
 1953                         if (error == 0) {
 1954                                 *optsize = sizeof(struct sctp_assoc_value);
 1955                         }
 1956                         break;
 1957                 }
 1958         case SCTP_VRF_ID:
 1959                 {
 1960                         uint32_t *default_vrfid;
 1961 
 1962                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1963                         *default_vrfid = inp->def_vrf_id;
 1964                         *optsize = sizeof(uint32_t);
 1965                         break;
 1966                 }
 1967         case SCTP_GET_ASOC_VRF:
 1968                 {
 1969                         struct sctp_assoc_value *id;
 1970 
 1971                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1972                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1973                         if (stcb == NULL) {
 1974                                 error = EINVAL;
 1975                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1976                         } else {
 1977                                 id->assoc_value = stcb->asoc.vrf_id;
 1978                                 *optsize = sizeof(struct sctp_assoc_value);
 1979                         }
 1980                         break;
 1981                 }
 1982         case SCTP_GET_VRF_IDS:
 1983                 {
 1984                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1985                         error = EOPNOTSUPP;
 1986                         break;
 1987                 }
 1988         case SCTP_GET_NONCE_VALUES:
 1989                 {
 1990                         struct sctp_get_nonce_values *gnv;
 1991 
 1992                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 1993                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 1994 
 1995                         if (stcb) {
 1996                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 1997                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 1998                                 SCTP_TCB_UNLOCK(stcb);
 1999                                 *optsize = sizeof(struct sctp_get_nonce_values);
 2000                         } else {
 2001                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2002                                 error = ENOTCONN;
 2003                         }
 2004                         break;
 2005                 }
 2006         case SCTP_DELAYED_SACK:
 2007                 {
 2008                         struct sctp_sack_info *sack;
 2009 
 2010                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 2011                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 2012                         if (stcb) {
 2013                                 sack->sack_delay = stcb->asoc.delayed_ack;
 2014                                 sack->sack_freq = stcb->asoc.sack_freq;
 2015                                 SCTP_TCB_UNLOCK(stcb);
 2016                         } else {
 2017                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2018                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2019                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
 2020                                         SCTP_INP_RLOCK(inp);
 2021                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 2022                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 2023                                         SCTP_INP_RUNLOCK(inp);
 2024                                 } else {
 2025                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2026                                         error = EINVAL;
 2027                                 }
 2028                         }
 2029                         if (error == 0) {
 2030                                 *optsize = sizeof(struct sctp_sack_info);
 2031                         }
 2032                         break;
 2033                 }
 2034         case SCTP_GET_SNDBUF_USE:
 2035                 {
 2036                         struct sctp_sockstat *ss;
 2037 
 2038                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 2039                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 2040 
 2041                         if (stcb) {
 2042                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 2043                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 2044                                     stcb->asoc.size_on_all_streams);
 2045                                 SCTP_TCB_UNLOCK(stcb);
 2046                                 *optsize = sizeof(struct sctp_sockstat);
 2047                         } else {
 2048                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2049                                 error = ENOTCONN;
 2050                         }
 2051                         break;
 2052                 }
 2053         case SCTP_MAX_BURST:
 2054                 {
 2055                         struct sctp_assoc_value *av;
 2056 
 2057                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2058                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2059 
 2060                         if (stcb) {
 2061                                 av->assoc_value = stcb->asoc.max_burst;
 2062                                 SCTP_TCB_UNLOCK(stcb);
 2063                         } else {
 2064                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2065                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2066                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2067                                         SCTP_INP_RLOCK(inp);
 2068                                         av->assoc_value = inp->sctp_ep.max_burst;
 2069                                         SCTP_INP_RUNLOCK(inp);
 2070                                 } else {
 2071                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2072                                         error = EINVAL;
 2073                                 }
 2074                         }
 2075                         if (error == 0) {
 2076                                 *optsize = sizeof(struct sctp_assoc_value);
 2077                         }
 2078                         break;
 2079                 }
 2080         case SCTP_MAXSEG:
 2081                 {
 2082                         struct sctp_assoc_value *av;
 2083                         int ovh;
 2084 
 2085                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2086                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2087 
 2088                         if (stcb) {
 2089                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 2090                                 SCTP_TCB_UNLOCK(stcb);
 2091                         } else {
 2092                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2093                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2094                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2095                                         SCTP_INP_RLOCK(inp);
 2096                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2097                                                 ovh = SCTP_MED_OVERHEAD;
 2098                                         } else {
 2099                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2100                                         }
 2101                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 2102                                                 av->assoc_value = 0;
 2103                                         else
 2104                                                 av->assoc_value = inp->sctp_frag_point - ovh;
 2105                                         SCTP_INP_RUNLOCK(inp);
 2106                                 } else {
 2107                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2108                                         error = EINVAL;
 2109                                 }
 2110                         }
 2111                         if (error == 0) {
 2112                                 *optsize = sizeof(struct sctp_assoc_value);
 2113                         }
 2114                         break;
 2115                 }
 2116         case SCTP_GET_STAT_LOG:
 2117                 error = sctp_fill_stat_log(optval, optsize);
 2118                 break;
 2119         case SCTP_EVENTS:
 2120                 {
 2121                         struct sctp_event_subscribe *events;
 2122 
 2123                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 2124                         memset(events, 0, sizeof(struct sctp_event_subscribe));
 2125                         SCTP_INP_RLOCK(inp);
 2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 2127                                 events->sctp_data_io_event = 1;
 2128 
 2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 2130                                 events->sctp_association_event = 1;
 2131 
 2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 2133                                 events->sctp_address_event = 1;
 2134 
 2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 2136                                 events->sctp_send_failure_event = 1;
 2137 
 2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 2139                                 events->sctp_peer_error_event = 1;
 2140 
 2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 2142                                 events->sctp_shutdown_event = 1;
 2143 
 2144                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 2145                                 events->sctp_partial_delivery_event = 1;
 2146 
 2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2148                                 events->sctp_adaptation_layer_event = 1;
 2149 
 2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2151                                 events->sctp_authentication_event = 1;
 2152 
 2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2154                                 events->sctp_sender_dry_event = 1;
 2155 
 2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2157                                 events->sctp_stream_reset_event = 1;
 2158                         SCTP_INP_RUNLOCK(inp);
 2159                         *optsize = sizeof(struct sctp_event_subscribe);
 2160                         break;
 2161                 }
 2162         case SCTP_ADAPTATION_LAYER:
 2163                 {
 2164                         uint32_t *value;
 2165 
 2166                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2167 
 2168                         SCTP_INP_RLOCK(inp);
 2169                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2170                         SCTP_INP_RUNLOCK(inp);
 2171                         *optsize = sizeof(uint32_t);
 2172                         break;
 2173                 }
 2174         case SCTP_SET_INITIAL_DBG_SEQ:
 2175                 {
 2176                         uint32_t *value;
 2177 
 2178                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2179                         SCTP_INP_RLOCK(inp);
 2180                         *value = inp->sctp_ep.initial_sequence_debug;
 2181                         SCTP_INP_RUNLOCK(inp);
 2182                         *optsize = sizeof(uint32_t);
 2183                         break;
 2184                 }
 2185         case SCTP_GET_LOCAL_ADDR_SIZE:
 2186                 {
 2187                         uint32_t *value;
 2188 
 2189                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2190                         SCTP_INP_RLOCK(inp);
 2191                         *value = sctp_count_max_addresses(inp);
 2192                         SCTP_INP_RUNLOCK(inp);
 2193                         *optsize = sizeof(uint32_t);
 2194                         break;
 2195                 }
 2196         case SCTP_GET_REMOTE_ADDR_SIZE:
 2197                 {
 2198                         uint32_t *value;
 2199                         size_t size;
 2200                         struct sctp_nets *net;
 2201 
 2202                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2203                         /* FIXME MT: change to sctp_assoc_value? */
 2204                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 2205 
 2206                         if (stcb) {
 2207                                 size = 0;
 2208                                 /* Count the sizes */
 2209                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2210                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2211                                                 size += sizeof(struct sockaddr_in6);
 2212                                         } else {
 2213                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 2214 #ifdef INET
 2215                                                 case AF_INET:
 2216                                                         size += sizeof(struct sockaddr_in);
 2217                                                         break;
 2218 #endif
 2219 #ifdef INET6
 2220                                                 case AF_INET6:
 2221                                                         size += sizeof(struct sockaddr_in6);
 2222                                                         break;
 2223 #endif
 2224                                                 default:
 2225                                                         break;
 2226                                                 }
 2227                                         }
 2228                                 }
 2229                                 SCTP_TCB_UNLOCK(stcb);
 2230                                 *value = (uint32_t) size;
 2231                                 *optsize = sizeof(uint32_t);
 2232                         } else {
 2233                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2234                                 error = ENOTCONN;
 2235                         }
 2236                         break;
 2237                 }
 2238         case SCTP_GET_PEER_ADDRESSES:
 2239                 /*
 2240                  * Get the address information, an array is passed in to
 2241                  * fill up we pack it.
 2242                  */
 2243                 {
 2244                         size_t cpsz, left;
 2245                         struct sockaddr_storage *sas;
 2246                         struct sctp_nets *net;
 2247                         struct sctp_getaddresses *saddr;
 2248 
 2249                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2250                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2251 
 2252                         if (stcb) {
 2253                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
 2254                                 *optsize = sizeof(struct sctp_getaddresses);
 2255                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2256 
 2257                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2258                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2259                                                 cpsz = sizeof(struct sockaddr_in6);
 2260                                         } else {
 2261                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 2262 #ifdef INET
 2263                                                 case AF_INET:
 2264                                                         cpsz = sizeof(struct sockaddr_in);
 2265                                                         break;
 2266 #endif
 2267 #ifdef INET6
 2268                                                 case AF_INET6:
 2269                                                         cpsz = sizeof(struct sockaddr_in6);
 2270                                                         break;
 2271 #endif
 2272                                                 default:
 2273                                                         cpsz = 0;
 2274                                                         break;
 2275                                                 }
 2276                                         }
 2277                                         if (cpsz == 0) {
 2278                                                 break;
 2279                                         }
 2280                                         if (left < cpsz) {
 2281                                                 /* not enough room. */
 2282                                                 break;
 2283                                         }
 2284 #if defined(INET) && defined(INET6)
 2285                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2286                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
 2287                                                 /* Must map the address */
 2288                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
 2289                                                     (struct sockaddr_in6 *)sas);
 2290                                         } else {
 2291 #endif
 2292                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2293 #if defined(INET) && defined(INET6)
 2294                                         }
 2295 #endif
 2296                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2297 
 2298                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2299                                         left -= cpsz;
 2300                                         *optsize += cpsz;
 2301                                 }
 2302                                 SCTP_TCB_UNLOCK(stcb);
 2303                         } else {
 2304                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2305                                 error = ENOENT;
 2306                         }
 2307                         break;
 2308                 }
 2309         case SCTP_GET_LOCAL_ADDRESSES:
 2310                 {
 2311                         size_t limit, actual;
 2312                         struct sockaddr_storage *sas;
 2313                         struct sctp_getaddresses *saddr;
 2314 
 2315                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2316                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2317 
 2318                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2319                         limit = *optsize - sizeof(sctp_assoc_t);
 2320                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2321                         if (stcb) {
 2322                                 SCTP_TCB_UNLOCK(stcb);
 2323                         }
 2324                         *optsize = sizeof(struct sockaddr_storage) + actual;
 2325                         break;
 2326                 }
 2327         case SCTP_PEER_ADDR_PARAMS:
 2328                 {
 2329                         struct sctp_paddrparams *paddrp;
 2330                         struct sctp_nets *net;
 2331 
 2332                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2333                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2334 
 2335                         net = NULL;
 2336                         if (stcb) {
 2337                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 2338                         } else {
 2339                                 /*
 2340                                  * We increment here since
 2341                                  * sctp_findassociation_ep_addr() wil do a
 2342                                  * decrement if it finds the stcb as long as
 2343                                  * the locked tcb (last argument) is NOT a
 2344                                  * TCB.. aka NULL.
 2345                                  */
 2346                                 SCTP_INP_INCR_REF(inp);
 2347                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
 2348                                 if (stcb == NULL) {
 2349                                         SCTP_INP_DECR_REF(inp);
 2350                                 }
 2351                         }
 2352                         if (stcb && (net == NULL)) {
 2353                                 struct sockaddr *sa;
 2354 
 2355                                 sa = (struct sockaddr *)&paddrp->spp_address;
 2356 #ifdef INET
 2357                                 if (sa->sa_family == AF_INET) {
 2358                                         struct sockaddr_in *sin;
 2359 
 2360                                         sin = (struct sockaddr_in *)sa;
 2361                                         if (sin->sin_addr.s_addr) {
 2362                                                 error = EINVAL;
 2363                                                 SCTP_TCB_UNLOCK(stcb);
 2364                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2365                                                 break;
 2366                                         }
 2367                                 } else
 2368 #endif
 2369 #ifdef INET6
 2370                                 if (sa->sa_family == AF_INET6) {
 2371                                         struct sockaddr_in6 *sin6;
 2372 
 2373                                         sin6 = (struct sockaddr_in6 *)sa;
 2374                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2375                                                 error = EINVAL;
 2376                                                 SCTP_TCB_UNLOCK(stcb);
 2377                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2378                                                 break;
 2379                                         }
 2380                                 } else
 2381 #endif
 2382                                 {
 2383                                         error = EAFNOSUPPORT;
 2384                                         SCTP_TCB_UNLOCK(stcb);
 2385                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2386                                         break;
 2387                                 }
 2388                         }
 2389                         if (stcb) {
 2390                                 /* Applies to the specific association */
 2391                                 paddrp->spp_flags = 0;
 2392                                 if (net) {
 2393                                         int ovh;
 2394 
 2395                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2396                                                 ovh = SCTP_MED_OVERHEAD;
 2397                                         } else {
 2398                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2399                                         }
 2400 
 2401                                         paddrp->spp_hbinterval = net->heart_beat_delay;
 2402                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2403                                         paddrp->spp_pathmtu = net->mtu - ovh;
 2404                                         /* get flags for HB */
 2405                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 2406                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2407                                         } else {
 2408                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2409                                         }
 2410                                         /* get flags for PMTU */
 2411                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 2412                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2413                                         } else {
 2414                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2415                                         }
 2416                                         if (net->dscp & 0x01) {
 2417                                                 paddrp->spp_dscp = net->dscp & 0xfc;
 2418                                                 paddrp->spp_flags |= SPP_DSCP;
 2419                                         }
 2420 #ifdef INET6
 2421                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
 2422                                             (net->flowlabel & 0x80000000)) {
 2423                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
 2424                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2425                                         }
 2426 #endif
 2427                                 } else {
 2428                                         /*
 2429                                          * No destination so return default
 2430                                          * value
 2431                                          */
 2432                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2433                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
 2434                                         if (stcb->asoc.default_dscp & 0x01) {
 2435                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
 2436                                                 paddrp->spp_flags |= SPP_DSCP;
 2437                                         }
 2438 #ifdef INET6
 2439                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
 2440                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
 2441                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2442                                         }
 2443 #endif
 2444                                         /* default settings should be these */
 2445                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2446                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2447                                         } else {
 2448                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2449                                         }
 2450                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2451                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2452                                         } else {
 2453                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2454                                         }
 2455                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2456                                 }
 2457                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2458                                 SCTP_TCB_UNLOCK(stcb);
 2459                         } else {
 2460                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2461                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2462                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 2463                                         /* Use endpoint defaults */
 2464                                         SCTP_INP_RLOCK(inp);
 2465                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2466                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2467                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
 2468                                         /* get inp's default */
 2469                                         if (inp->sctp_ep.default_dscp & 0x01) {
 2470                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
 2471                                                 paddrp->spp_flags |= SPP_DSCP;
 2472                                         }
 2473 #ifdef INET6
 2474                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 2475                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
 2476                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
 2477                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2478                                         }
 2479 #endif
 2480                                         /* can't return this */
 2481                                         paddrp->spp_pathmtu = 0;
 2482 
 2483                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2484                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2485                                         } else {
 2486                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2487                                         }
 2488                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2489                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2490                                         } else {
 2491                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2492                                         }
 2493                                         SCTP_INP_RUNLOCK(inp);
 2494                                 } else {
 2495                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2496                                         error = EINVAL;
 2497                                 }
 2498                         }
 2499                         if (error == 0) {
 2500                                 *optsize = sizeof(struct sctp_paddrparams);
 2501                         }
 2502                         break;
 2503                 }
 2504         case SCTP_GET_PEER_ADDR_INFO:
 2505                 {
 2506                         struct sctp_paddrinfo *paddri;
 2507                         struct sctp_nets *net;
 2508 
 2509                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2510                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2511 
 2512                         net = NULL;
 2513                         if (stcb) {
 2514                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
 2515                         } else {
 2516                                 /*
 2517                                  * We increment here since
 2518                                  * sctp_findassociation_ep_addr() wil do a
 2519                                  * decrement if it finds the stcb as long as
 2520                                  * the locked tcb (last argument) is NOT a
 2521                                  * TCB.. aka NULL.
 2522                                  */
 2523                                 SCTP_INP_INCR_REF(inp);
 2524                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
 2525                                 if (stcb == NULL) {
 2526                                         SCTP_INP_DECR_REF(inp);
 2527                                 }
 2528                         }
 2529 
 2530                         if ((stcb) && (net)) {
 2531                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2532                                         /* It's unconfirmed */
 2533                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
 2534                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2535                                         /* It's active */
 2536                                         paddri->spinfo_state = SCTP_ACTIVE;
 2537                                 } else {
 2538                                         /* It's inactive */
 2539                                         paddri->spinfo_state = SCTP_INACTIVE;
 2540                                 }
 2541                                 paddri->spinfo_cwnd = net->cwnd;
 2542                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2543                                 paddri->spinfo_rto = net->RTO;
 2544                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2545                                 paddri->spinfo_mtu = net->mtu;
 2546                                 SCTP_TCB_UNLOCK(stcb);
 2547                                 *optsize = sizeof(struct sctp_paddrinfo);
 2548                         } else {
 2549                                 if (stcb) {
 2550                                         SCTP_TCB_UNLOCK(stcb);
 2551                                 }
 2552                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2553                                 error = ENOENT;
 2554                         }
 2555                         break;
 2556                 }
 2557         case SCTP_PCB_STATUS:
 2558                 {
 2559                         struct sctp_pcbinfo *spcb;
 2560 
 2561                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2562                         sctp_fill_pcbinfo(spcb);
 2563                         *optsize = sizeof(struct sctp_pcbinfo);
 2564                         break;
 2565                 }
 2566         case SCTP_STATUS:
 2567                 {
 2568                         struct sctp_nets *net;
 2569                         struct sctp_status *sstat;
 2570 
 2571                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2572                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2573 
 2574                         if (stcb == NULL) {
 2575                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2576                                 error = EINVAL;
 2577                                 break;
 2578                         }
 2579                         /*
 2580                          * I think passing the state is fine since
 2581                          * sctp_constants.h will be available to the user
 2582                          * land.
 2583                          */
 2584                         sstat->sstat_state = stcb->asoc.state;
 2585                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2586                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2587                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2588                         /*
 2589                          * We can't include chunks that have been passed to
 2590                          * the socket layer. Only things in queue.
 2591                          */
 2592                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2593                             stcb->asoc.cnt_on_all_streams);
 2594 
 2595 
 2596                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2597                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2598                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2599                         memcpy(&sstat->sstat_primary.spinfo_address,
 2600                             &stcb->asoc.primary_destination->ro._l_addr,
 2601                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2602                         net = stcb->asoc.primary_destination;
 2603                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2604                         /*
 2605                          * Again the user can get info from sctp_constants.h
 2606                          * for what the state of the network is.
 2607                          */
 2608                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2609                                 /* It's unconfirmed */
 2610                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
 2611                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2612                                 /* It's active */
 2613                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
 2614                         } else {
 2615                                 /* It's inactive */
 2616                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
 2617                         }
 2618                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2619                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2620                         sstat->sstat_primary.spinfo_rto = net->RTO;
 2621                         sstat->sstat_primary.spinfo_mtu = net->mtu;
 2622                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2623                         SCTP_TCB_UNLOCK(stcb);
 2624                         *optsize = sizeof(struct sctp_status);
 2625                         break;
 2626                 }
 2627         case SCTP_RTOINFO:
 2628                 {
 2629                         struct sctp_rtoinfo *srto;
 2630 
 2631                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2632                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2633 
 2634                         if (stcb) {
 2635                                 srto->srto_initial = stcb->asoc.initial_rto;
 2636                                 srto->srto_max = stcb->asoc.maxrto;
 2637                                 srto->srto_min = stcb->asoc.minrto;
 2638                                 SCTP_TCB_UNLOCK(stcb);
 2639                         } else {
 2640                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2641                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2642                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 2643                                         SCTP_INP_RLOCK(inp);
 2644                                         srto->srto_initial = inp->sctp_ep.initial_rto;
 2645                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2646                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
 2647                                         SCTP_INP_RUNLOCK(inp);
 2648                                 } else {
 2649                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2650                                         error = EINVAL;
 2651                                 }
 2652                         }
 2653                         if (error == 0) {
 2654                                 *optsize = sizeof(struct sctp_rtoinfo);
 2655                         }
 2656                         break;
 2657                 }
 2658         case SCTP_TIMEOUTS:
 2659                 {
 2660                         struct sctp_timeouts *stimo;
 2661 
 2662                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
 2663                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
 2664 
 2665                         if (stcb) {
 2666                                 stimo->stimo_init = stcb->asoc.timoinit;
 2667                                 stimo->stimo_data = stcb->asoc.timodata;
 2668                                 stimo->stimo_sack = stcb->asoc.timosack;
 2669                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
 2670                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
 2671                                 stimo->stimo_cookie = stcb->asoc.timocookie;
 2672                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
 2673                                 SCTP_TCB_UNLOCK(stcb);
 2674                                 *optsize = sizeof(struct sctp_timeouts);
 2675                         } else {
 2676                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2677                                 error = EINVAL;
 2678                         }
 2679                         break;
 2680                 }
 2681         case SCTP_ASSOCINFO:
 2682                 {
 2683                         struct sctp_assocparams *sasoc;
 2684 
 2685                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2686                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2687 
 2688                         if (stcb) {
 2689                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2690                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2691                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2692                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2693                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2694                                 SCTP_TCB_UNLOCK(stcb);
 2695                         } else {
 2696                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2697                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2698                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 2699                                         SCTP_INP_RLOCK(inp);
 2700                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2701                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2702                                         sasoc->sasoc_number_peer_destinations = 0;
 2703                                         sasoc->sasoc_peer_rwnd = 0;
 2704                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2705                                         SCTP_INP_RUNLOCK(inp);
 2706                                 } else {
 2707                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2708                                         error = EINVAL;
 2709                                 }
 2710                         }
 2711                         if (error == 0) {
 2712                                 *optsize = sizeof(struct sctp_assocparams);
 2713                         }
 2714                         break;
 2715                 }
 2716         case SCTP_DEFAULT_SEND_PARAM:
 2717                 {
 2718                         struct sctp_sndrcvinfo *s_info;
 2719 
 2720                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2721                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2722 
 2723                         if (stcb) {
 2724                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2725                                 SCTP_TCB_UNLOCK(stcb);
 2726                         } else {
 2727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2729                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
 2730                                         SCTP_INP_RLOCK(inp);
 2731                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2732                                         SCTP_INP_RUNLOCK(inp);
 2733                                 } else {
 2734                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2735                                         error = EINVAL;
 2736                                 }
 2737                         }
 2738                         if (error == 0) {
 2739                                 *optsize = sizeof(struct sctp_sndrcvinfo);
 2740                         }
 2741                         break;
 2742                 }
 2743         case SCTP_INITMSG:
 2744                 {
 2745                         struct sctp_initmsg *sinit;
 2746 
 2747                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2748                         SCTP_INP_RLOCK(inp);
 2749                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2750                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2751                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2752                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2753                         SCTP_INP_RUNLOCK(inp);
 2754                         *optsize = sizeof(struct sctp_initmsg);
 2755                         break;
 2756                 }
 2757         case SCTP_PRIMARY_ADDR:
 2758                 /* we allow a "get" operation on this */
 2759                 {
 2760                         struct sctp_setprim *ssp;
 2761 
 2762                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2763                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2764 
 2765                         if (stcb) {
 2766                                 /* simply copy out the sockaddr_storage... */
 2767                                 int len;
 2768 
 2769                                 len = *optsize;
 2770                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
 2771                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
 2772 
 2773                                 memcpy(&ssp->ssp_addr,
 2774                                     &stcb->asoc.primary_destination->ro._l_addr,
 2775                                     len);
 2776                                 SCTP_TCB_UNLOCK(stcb);
 2777                                 *optsize = sizeof(struct sctp_setprim);
 2778                         } else {
 2779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2780                                 error = EINVAL;
 2781                         }
 2782                         break;
 2783                 }
 2784         case SCTP_HMAC_IDENT:
 2785                 {
 2786                         struct sctp_hmacalgo *shmac;
 2787                         sctp_hmaclist_t *hmaclist;
 2788                         uint32_t size;
 2789                         int i;
 2790 
 2791                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2792 
 2793                         SCTP_INP_RLOCK(inp);
 2794                         hmaclist = inp->sctp_ep.local_hmacs;
 2795                         if (hmaclist == NULL) {
 2796                                 /* no HMACs to return */
 2797                                 *optsize = sizeof(*shmac);
 2798                                 SCTP_INP_RUNLOCK(inp);
 2799                                 break;
 2800                         }
 2801                         /* is there room for all of the hmac ids? */
 2802                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2803                             sizeof(shmac->shmac_idents[0]));
 2804                         if ((size_t)(*optsize) < size) {
 2805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2806                                 error = EINVAL;
 2807                                 SCTP_INP_RUNLOCK(inp);
 2808                                 break;
 2809                         }
 2810                         /* copy in the list */
 2811                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2812                         for (i = 0; i < hmaclist->num_algo; i++) {
 2813                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2814                         }
 2815                         SCTP_INP_RUNLOCK(inp);
 2816                         *optsize = size;
 2817                         break;
 2818                 }
 2819         case SCTP_AUTH_ACTIVE_KEY:
 2820                 {
 2821                         struct sctp_authkeyid *scact;
 2822 
 2823                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2824                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2825 
 2826                         if (stcb) {
 2827                                 /* get the active key on the assoc */
 2828                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2829                                 SCTP_TCB_UNLOCK(stcb);
 2830                         } else {
 2831                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2832                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2833                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
 2834                                         /* get the endpoint active key */
 2835                                         SCTP_INP_RLOCK(inp);
 2836                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2837                                         SCTP_INP_RUNLOCK(inp);
 2838                                 } else {
 2839                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2840                                         error = EINVAL;
 2841                                 }
 2842                         }
 2843                         if (error == 0) {
 2844                                 *optsize = sizeof(struct sctp_authkeyid);
 2845                         }
 2846                         break;
 2847                 }
 2848         case SCTP_LOCAL_AUTH_CHUNKS:
 2849                 {
 2850                         struct sctp_authchunks *sac;
 2851                         sctp_auth_chklist_t *chklist = NULL;
 2852                         size_t size = 0;
 2853 
 2854                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2855                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2856 
 2857                         if (stcb) {
 2858                                 /* get off the assoc */
 2859                                 chklist = stcb->asoc.local_auth_chunks;
 2860                                 /* is there enough space? */
 2861                                 size = sctp_auth_get_chklist_size(chklist);
 2862                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2863                                         error = EINVAL;
 2864                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2865                                 } else {
 2866                                         /* copy in the chunks */
 2867                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2868                                         sac->gauth_number_of_chunks = (uint32_t) size;
 2869                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2870                                 }
 2871                                 SCTP_TCB_UNLOCK(stcb);
 2872                         } else {
 2873                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2874                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2875                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
 2876                                         /* get off the endpoint */
 2877                                         SCTP_INP_RLOCK(inp);
 2878                                         chklist = inp->sctp_ep.local_auth_chunks;
 2879                                         /* is there enough space? */
 2880                                         size = sctp_auth_get_chklist_size(chklist);
 2881                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2882                                                 error = EINVAL;
 2883                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2884                                         } else {
 2885                                                 /* copy in the chunks */
 2886                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2887                                                 sac->gauth_number_of_chunks = (uint32_t) size;
 2888                                                 *optsize = sizeof(struct sctp_authchunks) + size;
 2889                                         }
 2890                                         SCTP_INP_RUNLOCK(inp);
 2891                                 } else {
 2892                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2893                                         error = EINVAL;
 2894                                 }
 2895                         }
 2896                         break;
 2897                 }
 2898         case SCTP_PEER_AUTH_CHUNKS:
 2899                 {
 2900                         struct sctp_authchunks *sac;
 2901                         sctp_auth_chklist_t *chklist = NULL;
 2902                         size_t size = 0;
 2903 
 2904                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2905                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2906 
 2907                         if (stcb) {
 2908                                 /* get off the assoc */
 2909                                 chklist = stcb->asoc.peer_auth_chunks;
 2910                                 /* is there enough space? */
 2911                                 size = sctp_auth_get_chklist_size(chklist);
 2912                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2913                                         error = EINVAL;
 2914                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2915                                 } else {
 2916                                         /* copy in the chunks */
 2917                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2918                                         sac->gauth_number_of_chunks = (uint32_t) size;
 2919                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2920                                 }
 2921                                 SCTP_TCB_UNLOCK(stcb);
 2922                         } else {
 2923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2924                                 error = ENOENT;
 2925                         }
 2926                         break;
 2927                 }
 2928         case SCTP_EVENT:
 2929                 {
 2930                         struct sctp_event *event;
 2931                         uint32_t event_type;
 2932 
 2933                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
 2934                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 2935 
 2936                         switch (event->se_type) {
 2937                         case SCTP_ASSOC_CHANGE:
 2938                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 2939                                 break;
 2940                         case SCTP_PEER_ADDR_CHANGE:
 2941                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 2942                                 break;
 2943                         case SCTP_REMOTE_ERROR:
 2944                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 2945                                 break;
 2946                         case SCTP_SEND_FAILED:
 2947                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 2948                                 break;
 2949                         case SCTP_SHUTDOWN_EVENT:
 2950                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 2951                                 break;
 2952                         case SCTP_ADAPTATION_INDICATION:
 2953                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 2954                                 break;
 2955                         case SCTP_PARTIAL_DELIVERY_EVENT:
 2956                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 2957                                 break;
 2958                         case SCTP_AUTHENTICATION_EVENT:
 2959                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 2960                                 break;
 2961                         case SCTP_STREAM_RESET_EVENT:
 2962                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 2963                                 break;
 2964                         case SCTP_SENDER_DRY_EVENT:
 2965                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 2966                                 break;
 2967                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 2968                                 event_type = 0;
 2969                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 2970                                 error = ENOTSUP;
 2971                                 break;
 2972                         case SCTP_ASSOC_RESET_EVENT:
 2973                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 2974                                 break;
 2975                         case SCTP_STREAM_CHANGE_EVENT:
 2976                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 2977                                 break;
 2978                         case SCTP_SEND_FAILED_EVENT:
 2979                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 2980                                 break;
 2981                         default:
 2982                                 event_type = 0;
 2983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2984                                 error = EINVAL;
 2985                                 break;
 2986                         }
 2987                         if (event_type > 0) {
 2988                                 if (stcb) {
 2989                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
 2990                                         SCTP_TCB_UNLOCK(stcb);
 2991                                 } else {
 2992                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2993                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2994                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
 2995                                                 SCTP_INP_RLOCK(inp);
 2996                                                 event->se_on = sctp_is_feature_on(inp, event_type);
 2997                                                 SCTP_INP_RUNLOCK(inp);
 2998                                         } else {
 2999                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3000                                                 error = EINVAL;
 3001                                         }
 3002                                 }
 3003                         }
 3004                         if (error == 0) {
 3005                                 *optsize = sizeof(struct sctp_event);
 3006                         }
 3007                         break;
 3008                 }
 3009         case SCTP_RECVRCVINFO:
 3010                 {
 3011                         int onoff;
 3012 
 3013                         if (*optsize < sizeof(int)) {
 3014                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3015                                 error = EINVAL;
 3016                         } else {
 3017                                 SCTP_INP_RLOCK(inp);
 3018                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 3019                                 SCTP_INP_RUNLOCK(inp);
 3020                         }
 3021                         if (error == 0) {
 3022                                 /* return the option value */
 3023                                 *(int *)optval = onoff;
 3024                                 *optsize = sizeof(int);
 3025                         }
 3026                         break;
 3027                 }
 3028         case SCTP_RECVNXTINFO:
 3029                 {
 3030                         int onoff;
 3031 
 3032                         if (*optsize < sizeof(int)) {
 3033                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3034                                 error = EINVAL;
 3035                         } else {
 3036                                 SCTP_INP_RLOCK(inp);
 3037                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 3038                                 SCTP_INP_RUNLOCK(inp);
 3039                         }
 3040                         if (error == 0) {
 3041                                 /* return the option value */
 3042                                 *(int *)optval = onoff;
 3043                                 *optsize = sizeof(int);
 3044                         }
 3045                         break;
 3046                 }
 3047         case SCTP_DEFAULT_SNDINFO:
 3048                 {
 3049                         struct sctp_sndinfo *info;
 3050 
 3051                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
 3052                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 3053 
 3054                         if (stcb) {
 3055                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
 3056                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
 3057                                 info->snd_flags &= 0xfff0;
 3058                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
 3059                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
 3060                                 SCTP_TCB_UNLOCK(stcb);
 3061                         } else {
 3062                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3063                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3064                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
 3065                                         SCTP_INP_RLOCK(inp);
 3066                                         info->snd_sid = inp->def_send.sinfo_stream;
 3067                                         info->snd_flags = inp->def_send.sinfo_flags;
 3068                                         info->snd_flags &= 0xfff0;
 3069                                         info->snd_ppid = inp->def_send.sinfo_ppid;
 3070                                         info->snd_context = inp->def_send.sinfo_context;
 3071                                         SCTP_INP_RUNLOCK(inp);
 3072                                 } else {
 3073                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3074                                         error = EINVAL;
 3075                                 }
 3076                         }
 3077                         if (error == 0) {
 3078                                 *optsize = sizeof(struct sctp_sndinfo);
 3079                         }
 3080                         break;
 3081                 }
 3082         case SCTP_DEFAULT_PRINFO:
 3083                 {
 3084                         struct sctp_default_prinfo *info;
 3085 
 3086                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
 3087                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 3088 
 3089                         if (stcb) {
 3090                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 3091                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
 3092                                 SCTP_TCB_UNLOCK(stcb);
 3093                         } else {
 3094                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3095                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3096                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
 3097                                         SCTP_INP_RLOCK(inp);
 3098                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 3099                                         info->pr_value = inp->def_send.sinfo_timetolive;
 3100                                         SCTP_INP_RUNLOCK(inp);
 3101                                 } else {
 3102                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3103                                         error = EINVAL;
 3104                                 }
 3105                         }
 3106                         if (error == 0) {
 3107                                 *optsize = sizeof(struct sctp_default_prinfo);
 3108                         }
 3109                         break;
 3110                 }
 3111         case SCTP_PEER_ADDR_THLDS:
 3112                 {
 3113                         struct sctp_paddrthlds *thlds;
 3114                         struct sctp_nets *net;
 3115 
 3116                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 3117                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 3118 
 3119                         net = NULL;
 3120                         if (stcb) {
 3121                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
 3122                         } else {
 3123                                 /*
 3124                                  * We increment here since
 3125                                  * sctp_findassociation_ep_addr() wil do a
 3126                                  * decrement if it finds the stcb as long as
 3127                                  * the locked tcb (last argument) is NOT a
 3128                                  * TCB.. aka NULL.
 3129                                  */
 3130                                 SCTP_INP_INCR_REF(inp);
 3131                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
 3132                                 if (stcb == NULL) {
 3133                                         SCTP_INP_DECR_REF(inp);
 3134                                 }
 3135                         }
 3136                         if (stcb && (net == NULL)) {
 3137                                 struct sockaddr *sa;
 3138 
 3139                                 sa = (struct sockaddr *)&thlds->spt_address;
 3140 #ifdef INET
 3141                                 if (sa->sa_family == AF_INET) {
 3142                                         struct sockaddr_in *sin;
 3143 
 3144                                         sin = (struct sockaddr_in *)sa;
 3145                                         if (sin->sin_addr.s_addr) {
 3146                                                 error = EINVAL;
 3147                                                 SCTP_TCB_UNLOCK(stcb);
 3148                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3149                                                 break;
 3150                                         }
 3151                                 } else
 3152 #endif
 3153 #ifdef INET6
 3154                                 if (sa->sa_family == AF_INET6) {
 3155                                         struct sockaddr_in6 *sin6;
 3156 
 3157                                         sin6 = (struct sockaddr_in6 *)sa;
 3158                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3159                                                 error = EINVAL;
 3160                                                 SCTP_TCB_UNLOCK(stcb);
 3161                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3162                                                 break;
 3163                                         }
 3164                                 } else
 3165 #endif
 3166                                 {
 3167                                         error = EAFNOSUPPORT;
 3168                                         SCTP_TCB_UNLOCK(stcb);
 3169                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3170                                         break;
 3171                                 }
 3172                         }
 3173                         if (stcb) {
 3174                                 if (net) {
 3175                                         thlds->spt_pathmaxrxt = net->failure_threshold;
 3176                                         thlds->spt_pathpfthld = net->pf_threshold;
 3177                                 } else {
 3178                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 3179                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 3180                                 }
 3181                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
 3182                                 SCTP_TCB_UNLOCK(stcb);
 3183                         } else {
 3184                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3185                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3186                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 3187                                         /* Use endpoint defaults */
 3188                                         SCTP_INP_RLOCK(inp);
 3189                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
 3190                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
 3191                                         SCTP_INP_RUNLOCK(inp);
 3192                                 } else {
 3193                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3194                                         error = EINVAL;
 3195                                 }
 3196                         }
 3197                         if (error == 0) {
 3198                                 *optsize = sizeof(struct sctp_paddrthlds);
 3199                         }
 3200                         break;
 3201                 }
 3202         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 3203                 {
 3204                         struct sctp_udpencaps *encaps;
 3205                         struct sctp_nets *net;
 3206 
 3207                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 3208                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 3209 
 3210                         if (stcb) {
 3211                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 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, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 3223                                 if (stcb == NULL) {
 3224                                         SCTP_INP_DECR_REF(inp);
 3225                                 }
 3226                         }
 3227                         if (stcb && (net == NULL)) {
 3228                                 struct sockaddr *sa;
 3229 
 3230                                 sa = (struct sockaddr *)&encaps->sue_address;
 3231 #ifdef INET
 3232                                 if (sa->sa_family == AF_INET) {
 3233                                         struct sockaddr_in *sin;
 3234 
 3235                                         sin = (struct sockaddr_in *)sa;
 3236                                         if (sin->sin_addr.s_addr) {
 3237                                                 error = EINVAL;
 3238                                                 SCTP_TCB_UNLOCK(stcb);
 3239                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3240                                                 break;
 3241                                         }
 3242                                 } else
 3243 #endif
 3244 #ifdef INET6
 3245                                 if (sa->sa_family == AF_INET6) {
 3246                                         struct sockaddr_in6 *sin6;
 3247 
 3248                                         sin6 = (struct sockaddr_in6 *)sa;
 3249                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3250                                                 error = EINVAL;
 3251                                                 SCTP_TCB_UNLOCK(stcb);
 3252                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3253                                                 break;
 3254                                         }
 3255                                 } else
 3256 #endif
 3257                                 {
 3258                                         error = EAFNOSUPPORT;
 3259                                         SCTP_TCB_UNLOCK(stcb);
 3260                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3261                                         break;
 3262                                 }
 3263                         }
 3264                         if (stcb) {
 3265                                 if (net) {
 3266                                         encaps->sue_port = net->port;
 3267                                 } else {
 3268                                         encaps->sue_port = stcb->asoc.port;
 3269                                 }
 3270                                 SCTP_TCB_UNLOCK(stcb);
 3271                         } else {
 3272                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3273                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3274                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 3275                                         SCTP_INP_RLOCK(inp);
 3276                                         encaps->sue_port = inp->sctp_ep.port;
 3277                                         SCTP_INP_RUNLOCK(inp);
 3278                                 } else {
 3279                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3280                                         error = EINVAL;
 3281                                 }
 3282                         }
 3283                         if (error == 0) {
 3284                                 *optsize = sizeof(struct sctp_paddrparams);
 3285                         }
 3286                         break;
 3287                 }
 3288         case SCTP_ENABLE_STREAM_RESET:
 3289                 {
 3290                         struct sctp_assoc_value *av;
 3291 
 3292                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3293                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3294 
 3295                         if (stcb) {
 3296                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
 3297                                 SCTP_TCB_UNLOCK(stcb);
 3298                         } else {
 3299                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3300                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3301                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3302                                         SCTP_INP_RLOCK(inp);
 3303                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
 3304                                         SCTP_INP_RUNLOCK(inp);
 3305                                 } else {
 3306                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3307                                         error = EINVAL;
 3308                                 }
 3309                         }
 3310                         if (error == 0) {
 3311                                 *optsize = sizeof(struct sctp_assoc_value);
 3312                         }
 3313                         break;
 3314                 }
 3315         default:
 3316                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3317                 error = ENOPROTOOPT;
 3318                 break;
 3319         }                       /* end switch (sopt->sopt_name) */
 3320         if (error) {
 3321                 *optsize = 0;
 3322         }
 3323         return (error);
 3324 }
 3325 
 3326 static int
 3327 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 3328     void *p)
 3329 {
 3330         int error, set_opt;
 3331         uint32_t *mopt;
 3332         struct sctp_tcb *stcb = NULL;
 3333         struct sctp_inpcb *inp = NULL;
 3334         uint32_t vrf_id;
 3335 
 3336         if (optval == NULL) {
 3337                 SCTP_PRINTF("optval is NULL\n");
 3338                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3339                 return (EINVAL);
 3340         }
 3341         inp = (struct sctp_inpcb *)so->so_pcb;
 3342         if (inp == NULL) {
 3343                 SCTP_PRINTF("inp is NULL?\n");
 3344                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3345                 return (EINVAL);
 3346         }
 3347         vrf_id = inp->def_vrf_id;
 3348 
 3349         error = 0;
 3350         switch (optname) {
 3351         case SCTP_NODELAY:
 3352         case SCTP_AUTOCLOSE:
 3353         case SCTP_AUTO_ASCONF:
 3354         case SCTP_EXPLICIT_EOR:
 3355         case SCTP_DISABLE_FRAGMENTS:
 3356         case SCTP_USE_EXT_RCVINFO:
 3357         case SCTP_I_WANT_MAPPED_V4_ADDR:
 3358                 /* copy in the option value */
 3359                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3360                 set_opt = 0;
 3361                 if (error)
 3362                         break;
 3363                 switch (optname) {
 3364                 case SCTP_DISABLE_FRAGMENTS:
 3365                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 3366                         break;
 3367                 case SCTP_AUTO_ASCONF:
 3368                         /*
 3369                          * NOTE: we don't really support this flag
 3370                          */
 3371                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 3372                                 /* only valid for bound all sockets */
 3373                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
 3374                                     (*mopt != 0)) {
 3375                                         /* forbidden by admin */
 3376                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
 3377                                         return (EPERM);
 3378                                 }
 3379                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 3380                         } else {
 3381                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3382                                 return (EINVAL);
 3383                         }
 3384                         break;
 3385                 case SCTP_EXPLICIT_EOR:
 3386                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 3387                         break;
 3388                 case SCTP_USE_EXT_RCVINFO:
 3389                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 3390                         break;
 3391                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 3392                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3393                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 3394                         } else {
 3395                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3396                                 return (EINVAL);
 3397                         }
 3398                         break;
 3399                 case SCTP_NODELAY:
 3400                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 3401                         break;
 3402                 case SCTP_AUTOCLOSE:
 3403                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3404                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3405                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3406                                 return (EINVAL);
 3407                         }
 3408                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 3409                         /*
 3410                          * The value is in ticks. Note this does not effect
 3411                          * old associations, only new ones.
 3412                          */
 3413                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 3414                         break;
 3415                 }
 3416                 SCTP_INP_WLOCK(inp);
 3417                 if (*mopt != 0) {
 3418                         sctp_feature_on(inp, set_opt);
 3419                 } else {
 3420                         sctp_feature_off(inp, set_opt);
 3421                 }
 3422                 SCTP_INP_WUNLOCK(inp);
 3423                 break;
 3424         case SCTP_REUSE_PORT:
 3425                 {
 3426                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3427                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 3428                                 /* Can't set it after we are bound */
 3429                                 error = EINVAL;
 3430                                 break;
 3431                         }
 3432                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 3433                                 /* Can't do this for a 1-m socket */
 3434                                 error = EINVAL;
 3435                                 break;
 3436                         }
 3437                         if (optval)
 3438                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3439                         else
 3440                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3441                         break;
 3442                 }
 3443         case SCTP_PARTIAL_DELIVERY_POINT:
 3444                 {
 3445                         uint32_t *value;
 3446 
 3447                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 3448                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 3449                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3450                                 error = EINVAL;
 3451                                 break;
 3452                         }
 3453                         inp->partial_delivery_point = *value;
 3454                         break;
 3455                 }
 3456         case SCTP_FRAGMENT_INTERLEAVE:
 3457                 /* not yet until we re-write sctp_recvmsg() */
 3458                 {
 3459                         uint32_t *level;
 3460 
 3461                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 3462                         if (*level == SCTP_FRAG_LEVEL_2) {
 3463                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3464                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3465                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 3466                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3467                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3468                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 3469                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3470                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3471 
 3472                         } else {
 3473                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3474                                 error = EINVAL;
 3475                         }
 3476                         break;
 3477                 }
 3478         case SCTP_CMT_ON_OFF:
 3479                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 3480                         struct sctp_assoc_value *av;
 3481 
 3482                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3483                         if (av->assoc_value > SCTP_CMT_MAX) {
 3484                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3485                                 error = EINVAL;
 3486                                 break;
 3487                         }
 3488                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3489                         if (stcb) {
 3490                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3491                                 SCTP_TCB_UNLOCK(stcb);
 3492                         } else {
 3493                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3494                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3495                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3496                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3497                                         SCTP_INP_WLOCK(inp);
 3498                                         inp->sctp_cmt_on_off = av->assoc_value;
 3499                                         SCTP_INP_WUNLOCK(inp);
 3500                                 }
 3501                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3502                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3503                                         SCTP_INP_RLOCK(inp);
 3504                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3505                                                 SCTP_TCB_LOCK(stcb);
 3506                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3507                                                 SCTP_TCB_UNLOCK(stcb);
 3508                                         }
 3509                                         SCTP_INP_RUNLOCK(inp);
 3510                                 }
 3511                         }
 3512                 } else {
 3513                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3514                         error = ENOPROTOOPT;
 3515                 }
 3516                 break;
 3517         case SCTP_PLUGGABLE_CC:
 3518                 {
 3519                         struct sctp_assoc_value *av;
 3520                         struct sctp_nets *net;
 3521 
 3522                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3523                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
 3524                             (av->assoc_value != SCTP_CC_HSTCP) &&
 3525                             (av->assoc_value != SCTP_CC_HTCP) &&
 3526                             (av->assoc_value != SCTP_CC_RTCC)) {
 3527                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3528                                 error = EINVAL;
 3529                                 break;
 3530                         }
 3531                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3532                         if (stcb) {
 3533                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3534                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3535                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3536                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3537                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3538                                         }
 3539                                 }
 3540                                 SCTP_TCB_UNLOCK(stcb);
 3541                         } else {
 3542                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3543                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3544                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3545                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3546                                         SCTP_INP_WLOCK(inp);
 3547                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 3548                                         SCTP_INP_WUNLOCK(inp);
 3549                                 }
 3550                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3551                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3552                                         SCTP_INP_RLOCK(inp);
 3553                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3554                                                 SCTP_TCB_LOCK(stcb);
 3555                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3556                                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3557                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3558                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3559                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3560                                                         }
 3561                                                 }
 3562                                                 SCTP_TCB_UNLOCK(stcb);
 3563                                         }
 3564                                         SCTP_INP_RUNLOCK(inp);
 3565                                 }
 3566                         }
 3567                         break;
 3568                 }
 3569         case SCTP_CC_OPTION:
 3570                 {
 3571                         struct sctp_cc_option *cc_opt;
 3572 
 3573                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
 3574                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 3575                         if (stcb == NULL) {
 3576                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
 3577                                         SCTP_INP_RLOCK(inp);
 3578                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3579                                                 SCTP_TCB_LOCK(stcb);
 3580                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
 3581                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
 3582                                                 }
 3583                                                 SCTP_TCB_UNLOCK(stcb);
 3584                                         }
 3585                                         SCTP_INP_RUNLOCK(inp);
 3586                                 } else {
 3587                                         error = EINVAL;
 3588                                 }
 3589                         } else {
 3590                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 3591                                         error = ENOTSUP;
 3592                                 } else {
 3593                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
 3594                                             cc_opt);
 3595                                 }
 3596                                 SCTP_TCB_UNLOCK(stcb);
 3597                         }
 3598                         break;
 3599                 }
 3600         case SCTP_PLUGGABLE_SS:
 3601                 {
 3602                         struct sctp_assoc_value *av;
 3603 
 3604                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3605                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
 3606                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
 3607                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
 3608                             (av->assoc_value != SCTP_SS_PRIORITY) &&
 3609                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
 3610                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
 3611                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3612                                 error = EINVAL;
 3613                                 break;
 3614                         }
 3615                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3616                         if (stcb) {
 3617                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 3618                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 3619                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 3620                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 3621                                 SCTP_TCB_UNLOCK(stcb);
 3622                         } else {
 3623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3625                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3626                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3627                                         SCTP_INP_WLOCK(inp);
 3628                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
 3629                                         SCTP_INP_WUNLOCK(inp);
 3630                                 }
 3631                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3632                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3633                                         SCTP_INP_RLOCK(inp);
 3634                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3635                                                 SCTP_TCB_LOCK(stcb);
 3636                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 3637                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 3638                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 3639                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 3640                                                 SCTP_TCB_UNLOCK(stcb);
 3641                                         }
 3642                                         SCTP_INP_RUNLOCK(inp);
 3643                                 }
 3644                         }
 3645                         break;
 3646                 }
 3647         case SCTP_SS_VALUE:
 3648                 {
 3649                         struct sctp_stream_value *av;
 3650 
 3651                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
 3652                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3653                         if (stcb) {
 3654                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 3655                                     av->stream_value) < 0) {
 3656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3657                                         error = EINVAL;
 3658                                 }
 3659                                 SCTP_TCB_UNLOCK(stcb);
 3660                         } else {
 3661                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
 3662                                         SCTP_INP_RLOCK(inp);
 3663                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3664                                                 SCTP_TCB_LOCK(stcb);
 3665                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
 3666                                                     &stcb->asoc,
 3667                                                     &stcb->asoc.strmout[av->stream_id],
 3668                                                     av->stream_value);
 3669                                                 SCTP_TCB_UNLOCK(stcb);
 3670                                         }
 3671                                         SCTP_INP_RUNLOCK(inp);
 3672 
 3673                                 } else {
 3674                                         /*
 3675                                          * Can't set stream value without
 3676                                          * association
 3677                                          */
 3678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3679                                         error = EINVAL;
 3680                                 }
 3681                         }
 3682                         break;
 3683                 }
 3684         case SCTP_CLR_STAT_LOG:
 3685                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3686                 error = EOPNOTSUPP;
 3687                 break;
 3688         case SCTP_CONTEXT:
 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                                 stcb->asoc.context = av->assoc_value;
 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                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3703                                         SCTP_INP_WLOCK(inp);
 3704                                         inp->sctp_context = av->assoc_value;
 3705                                         SCTP_INP_WUNLOCK(inp);
 3706                                 }
 3707                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3708                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3709                                         SCTP_INP_RLOCK(inp);
 3710                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3711                                                 SCTP_TCB_LOCK(stcb);
 3712                                                 stcb->asoc.context = av->assoc_value;
 3713                                                 SCTP_TCB_UNLOCK(stcb);
 3714                                         }
 3715                                         SCTP_INP_RUNLOCK(inp);
 3716                                 }
 3717                         }
 3718                         break;
 3719                 }
 3720         case SCTP_VRF_ID:
 3721                 {
 3722                         uint32_t *default_vrfid;
 3723 
 3724                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 3725                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 3726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3727                                 error = EINVAL;
 3728                                 break;
 3729                         }
 3730                         inp->def_vrf_id = *default_vrfid;
 3731                         break;
 3732                 }
 3733         case SCTP_DEL_VRF_ID:
 3734                 {
 3735                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3736                         error = EOPNOTSUPP;
 3737                         break;
 3738                 }
 3739         case SCTP_ADD_VRF_ID:
 3740                 {
 3741                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3742                         error = EOPNOTSUPP;
 3743                         break;
 3744                 }
 3745         case SCTP_DELAYED_SACK:
 3746                 {
 3747                         struct sctp_sack_info *sack;
 3748 
 3749                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 3750                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 3751                         if (sack->sack_delay) {
 3752                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 3753                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 3754                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 3755                                         sack->sack_delay = TICKS_TO_MSEC(1);
 3756                                 }
 3757                         }
 3758                         if (stcb) {
 3759                                 if (sack->sack_delay) {
 3760                                         stcb->asoc.delayed_ack = sack->sack_delay;
 3761                                 }
 3762                                 if (sack->sack_freq) {
 3763                                         stcb->asoc.sack_freq = sack->sack_freq;
 3764                                 }
 3765                                 SCTP_TCB_UNLOCK(stcb);
 3766                         } else {
 3767                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3768                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3769                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
 3770                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 3771                                         SCTP_INP_WLOCK(inp);
 3772                                         if (sack->sack_delay) {
 3773                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 3774                                         }
 3775                                         if (sack->sack_freq) {
 3776                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 3777                                         }
 3778                                         SCTP_INP_WUNLOCK(inp);
 3779                                 }
 3780                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
 3781                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 3782                                         SCTP_INP_RLOCK(inp);
 3783                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3784                                                 SCTP_TCB_LOCK(stcb);
 3785                                                 if (sack->sack_delay) {
 3786                                                         stcb->asoc.delayed_ack = sack->sack_delay;
 3787                                                 }
 3788                                                 if (sack->sack_freq) {
 3789                                                         stcb->asoc.sack_freq = sack->sack_freq;
 3790                                                 }
 3791                                                 SCTP_TCB_UNLOCK(stcb);
 3792                                         }
 3793                                         SCTP_INP_RUNLOCK(inp);
 3794                                 }
 3795                         }
 3796                         break;
 3797                 }
 3798         case SCTP_AUTH_CHUNK:
 3799                 {
 3800                         struct sctp_authchunk *sauth;
 3801 
 3802                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 3803 
 3804                         SCTP_INP_WLOCK(inp);
 3805                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 3806                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3807                                 error = EINVAL;
 3808                         }
 3809                         SCTP_INP_WUNLOCK(inp);
 3810                         break;
 3811                 }
 3812         case SCTP_AUTH_KEY:
 3813                 {
 3814                         struct sctp_authkey *sca;
 3815                         struct sctp_keyhead *shared_keys;
 3816                         sctp_sharedkey_t *shared_key;
 3817                         sctp_key_t *key = NULL;
 3818                         size_t size;
 3819 
 3820                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 3821                         if (sca->sca_keylength == 0) {
 3822                                 size = optsize - sizeof(struct sctp_authkey);
 3823                         } else {
 3824                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
 3825                                         size = sca->sca_keylength;
 3826                                 } else {
 3827                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3828                                         error = EINVAL;
 3829                                         break;
 3830                                 }
 3831                         }
 3832                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 3833 
 3834                         if (stcb) {
 3835                                 shared_keys = &stcb->asoc.shared_keys;
 3836                                 /* clear the cached keys for this key id */
 3837                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 3838                                 /*
 3839                                  * create the new shared key and
 3840                                  * insert/replace it
 3841                                  */
 3842                                 if (size > 0) {
 3843                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3844                                         if (key == NULL) {
 3845                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3846                                                 error = ENOMEM;
 3847                                                 SCTP_TCB_UNLOCK(stcb);
 3848                                                 break;
 3849                                         }
 3850                                 }
 3851                                 shared_key = sctp_alloc_sharedkey();
 3852                                 if (shared_key == NULL) {
 3853                                         sctp_free_key(key);
 3854                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3855                                         error = ENOMEM;
 3856                                         SCTP_TCB_UNLOCK(stcb);
 3857                                         break;
 3858                                 }
 3859                                 shared_key->key = key;
 3860                                 shared_key->keyid = sca->sca_keynumber;
 3861                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3862                                 SCTP_TCB_UNLOCK(stcb);
 3863                         } else {
 3864                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3865                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3866                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
 3867                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 3868                                         SCTP_INP_WLOCK(inp);
 3869                                         shared_keys = &inp->sctp_ep.shared_keys;
 3870                                         /*
 3871                                          * clear the cached keys on all
 3872                                          * assocs for this key id
 3873                                          */
 3874                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 3875                                         /*
 3876                                          * create the new shared key and
 3877                                          * insert/replace it
 3878                                          */
 3879                                         if (size > 0) {
 3880                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3881                                                 if (key == NULL) {
 3882                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3883                                                         error = ENOMEM;
 3884                                                         SCTP_INP_WUNLOCK(inp);
 3885                                                         break;
 3886                                                 }
 3887                                         }
 3888                                         shared_key = sctp_alloc_sharedkey();
 3889                                         if (shared_key == NULL) {
 3890                                                 sctp_free_key(key);
 3891                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3892                                                 error = ENOMEM;
 3893                                                 SCTP_INP_WUNLOCK(inp);
 3894                                                 break;
 3895                                         }
 3896                                         shared_key->key = key;
 3897                                         shared_key->keyid = sca->sca_keynumber;
 3898                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
 3899                                         SCTP_INP_WUNLOCK(inp);
 3900                                 }
 3901                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
 3902                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 3903                                         SCTP_INP_RLOCK(inp);
 3904                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3905                                                 SCTP_TCB_LOCK(stcb);
 3906                                                 shared_keys = &stcb->asoc.shared_keys;
 3907                                                 /*
 3908                                                  * clear the cached keys for
 3909                                                  * this key id
 3910                                                  */
 3911                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 3912                                                 /*
 3913                                                  * create the new shared key
 3914                                                  * and insert/replace it
 3915                                                  */
 3916                                                 if (size > 0) {
 3917                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3918                                                         if (key == NULL) {
 3919                                                                 SCTP_TCB_UNLOCK(stcb);
 3920                                                                 continue;
 3921                                                         }
 3922                                                 }
 3923                                                 shared_key = sctp_alloc_sharedkey();
 3924                                                 if (shared_key == NULL) {
 3925                                                         sctp_free_key(key);
 3926                                                         SCTP_TCB_UNLOCK(stcb);
 3927                                                         continue;
 3928                                                 }
 3929                                                 shared_key->key = key;
 3930                                                 shared_key->keyid = sca->sca_keynumber;
 3931                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3932                                                 SCTP_TCB_UNLOCK(stcb);
 3933                                         }
 3934                                         SCTP_INP_RUNLOCK(inp);
 3935                                 }
 3936                         }
 3937                         break;
 3938                 }
 3939         case SCTP_HMAC_IDENT:
 3940                 {
 3941                         struct sctp_hmacalgo *shmac;
 3942                         sctp_hmaclist_t *hmaclist;
 3943                         uint16_t hmacid;
 3944                         uint32_t i;
 3945                         size_t found;
 3946 
 3947                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 3948                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
 3949                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3950                                 error = EINVAL;
 3951                                 break;
 3952                         }
 3953                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
 3954                         if (hmaclist == NULL) {
 3955                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3956                                 error = ENOMEM;
 3957                                 break;
 3958                         }
 3959                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 3960                                 hmacid = shmac->shmac_idents[i];
 3961                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 3962                                          /* invalid HMACs were found */ ;
 3963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3964                                         error = EINVAL;
 3965                                         sctp_free_hmaclist(hmaclist);
 3966                                         goto sctp_set_hmac_done;
 3967                                 }
 3968                         }
 3969                         found = 0;
 3970                         for (i = 0; i < hmaclist->num_algo; i++) {
 3971                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 3972                                         /* already in list */
 3973                                         found = 1;
 3974                                 }
 3975                         }
 3976                         if (!found) {
 3977                                 sctp_free_hmaclist(hmaclist);
 3978                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3979                                 error = EINVAL;
 3980                                 break;
 3981                         }
 3982                         /* set it on the endpoint */
 3983                         SCTP_INP_WLOCK(inp);
 3984                         if (inp->sctp_ep.local_hmacs)
 3985                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 3986                         inp->sctp_ep.local_hmacs = hmaclist;
 3987                         SCTP_INP_WUNLOCK(inp);
 3988         sctp_set_hmac_done:
 3989                         break;
 3990                 }
 3991         case SCTP_AUTH_ACTIVE_KEY:
 3992                 {
 3993                         struct sctp_authkeyid *scact;
 3994 
 3995                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
 3996                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 3997 
 3998                         /* set the active key on the right place */
 3999                         if (stcb) {
 4000                                 /* set the active key on the assoc */
 4001                                 if (sctp_auth_setactivekey(stcb,
 4002                                     scact->scact_keynumber)) {
 4003                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 4004                                             SCTP_FROM_SCTP_USRREQ,
 4005                                             EINVAL);
 4006                                         error = EINVAL;
 4007                                 }
 4008                                 SCTP_TCB_UNLOCK(stcb);
 4009                         } else {
 4010                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4011                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4012                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4013                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4014                                         SCTP_INP_WLOCK(inp);
 4015                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
 4016                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4017                                                 error = EINVAL;
 4018                                         }
 4019                                         SCTP_INP_WUNLOCK(inp);
 4020                                 }
 4021                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4022                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4023                                         SCTP_INP_RLOCK(inp);
 4024                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4025                                                 SCTP_TCB_LOCK(stcb);
 4026                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
 4027                                                 SCTP_TCB_UNLOCK(stcb);
 4028                                         }
 4029                                         SCTP_INP_RUNLOCK(inp);
 4030                                 }
 4031                         }
 4032                         break;
 4033                 }
 4034         case SCTP_AUTH_DELETE_KEY:
 4035                 {
 4036                         struct sctp_authkeyid *scdel;
 4037 
 4038                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
 4039                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 4040 
 4041                         /* delete the key from the right place */
 4042                         if (stcb) {
 4043                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
 4044                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4045                                         error = EINVAL;
 4046                                 }
 4047                                 SCTP_TCB_UNLOCK(stcb);
 4048                         } else {
 4049                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4050                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4051                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4052                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4053                                         SCTP_INP_WLOCK(inp);
 4054                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
 4055                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4056                                                 error = EINVAL;
 4057                                         }
 4058                                         SCTP_INP_WUNLOCK(inp);
 4059                                 }
 4060                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4061                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4062                                         SCTP_INP_RLOCK(inp);
 4063                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4064                                                 SCTP_TCB_LOCK(stcb);
 4065                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
 4066                                                 SCTP_TCB_UNLOCK(stcb);
 4067                                         }
 4068                                         SCTP_INP_RUNLOCK(inp);
 4069                                 }
 4070                         }
 4071                         break;
 4072                 }
 4073         case SCTP_AUTH_DEACTIVATE_KEY:
 4074                 {
 4075                         struct sctp_authkeyid *keyid;
 4076 
 4077                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
 4078                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 4079 
 4080                         /* deactivate the key from the right place */
 4081                         if (stcb) {
 4082                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
 4083                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4084                                         error = EINVAL;
 4085                                 }
 4086                                 SCTP_TCB_UNLOCK(stcb);
 4087                         } else {
 4088                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4089                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4090                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4091                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4092                                         SCTP_INP_WLOCK(inp);
 4093                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
 4094                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4095                                                 error = EINVAL;
 4096                                         }
 4097                                         SCTP_INP_WUNLOCK(inp);
 4098                                 }
 4099                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4100                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4101                                         SCTP_INP_RLOCK(inp);
 4102                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4103                                                 SCTP_TCB_LOCK(stcb);
 4104                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
 4105                                                 SCTP_TCB_UNLOCK(stcb);
 4106                                         }
 4107                                         SCTP_INP_RUNLOCK(inp);
 4108                                 }
 4109                         }
 4110                         break;
 4111                 }
 4112         case SCTP_ENABLE_STREAM_RESET:
 4113                 {
 4114                         struct sctp_assoc_value *av;
 4115 
 4116                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4117                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
 4118                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4119                                 error = EINVAL;
 4120                                 break;
 4121                         }
 4122                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4123                         if (stcb) {
 4124                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4125                                 SCTP_TCB_UNLOCK(stcb);
 4126                         } else {
 4127                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4128                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4129                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4130                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4131                                         SCTP_INP_WLOCK(inp);
 4132                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
 4133                                         SCTP_INP_WUNLOCK(inp);
 4134                                 }
 4135                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4136                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4137                                         SCTP_INP_RLOCK(inp);
 4138                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4139                                                 SCTP_TCB_LOCK(stcb);
 4140                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4141                                                 SCTP_TCB_UNLOCK(stcb);
 4142                                         }
 4143                                         SCTP_INP_RUNLOCK(inp);
 4144                                 }
 4145                         }
 4146                         break;
 4147                 }
 4148         case SCTP_RESET_STREAMS:
 4149                 {
 4150                         struct sctp_reset_streams *strrst;
 4151                         int i, send_out = 0;
 4152                         int send_in = 0;
 4153 
 4154                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
 4155                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
 4156                         if (stcb == NULL) {
 4157                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4158                                 error = ENOENT;
 4159                                 break;
 4160                         }
 4161                         if (stcb->asoc.peer_supports_strreset == 0) {
 4162                                 /*
 4163                                  * Peer does not support the chunk type.
 4164                                  */
 4165                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4166                                 error = EOPNOTSUPP;
 4167                                 SCTP_TCB_UNLOCK(stcb);
 4168                                 break;
 4169                         }
 4170                         if (stcb->asoc.stream_reset_outstanding) {
 4171                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4172                                 error = EALREADY;
 4173                                 SCTP_TCB_UNLOCK(stcb);
 4174                                 break;
 4175                         }
 4176                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
 4177                                 send_in = 1;
 4178                         }
 4179                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 4180                                 send_out = 1;
 4181                         }
 4182                         if ((send_in == 0) && (send_out == 0)) {
 4183                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4184                                 error = EINVAL;
 4185                                 SCTP_TCB_UNLOCK(stcb);
 4186                                 break;
 4187                         }
 4188                         for (i = 0; i < strrst->srs_number_streams; i++) {
 4189                                 if ((send_in) &&
 4190                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
 4191                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4192                                         error = EINVAL;
 4193                                         break;
 4194                                 }
 4195                                 if ((send_out) &&
 4196                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
 4197                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4198                                         error = EINVAL;
 4199                                         break;
 4200                                 }
 4201                         }
 4202                         if (error) {
 4203                                 SCTP_TCB_UNLOCK(stcb);
 4204                                 break;
 4205                         }
 4206                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 4207                             strrst->srs_stream_list,
 4208                             send_out, send_in, 0, 0, 0, 0, 0);
 4209 
 4210                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4211                         SCTP_TCB_UNLOCK(stcb);
 4212                         break;
 4213                 }
 4214         case SCTP_ADD_STREAMS:
 4215                 {
 4216                         struct sctp_add_streams *stradd;
 4217                         uint8_t addstream = 0;
 4218                         uint16_t add_o_strmcnt = 0;
 4219                         uint16_t add_i_strmcnt = 0;
 4220 
 4221                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
 4222                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
 4223                         if (stcb == NULL) {
 4224                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4225                                 error = ENOENT;
 4226                                 break;
 4227                         }
 4228                         if (stcb->asoc.peer_supports_strreset == 0) {
 4229                                 /*
 4230                                  * Peer does not support the chunk type.
 4231                                  */
 4232                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4233                                 error = EOPNOTSUPP;
 4234                                 SCTP_TCB_UNLOCK(stcb);
 4235                                 break;
 4236                         }
 4237                         if (stcb->asoc.stream_reset_outstanding) {
 4238                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4239                                 error = EALREADY;
 4240                                 SCTP_TCB_UNLOCK(stcb);
 4241                                 break;
 4242                         }
 4243                         if ((stradd->sas_outstrms == 0) &&
 4244                             (stradd->sas_instrms == 0)) {
 4245                                 error = EINVAL;
 4246                                 goto skip_stuff;
 4247                         }
 4248                         if (stradd->sas_outstrms) {
 4249                                 addstream = 1;
 4250                                 /* We allocate here */
 4251                                 add_o_strmcnt = stradd->sas_outstrms;
 4252                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
 4253                                         /* You can't have more than 64k */
 4254                                         error = EINVAL;
 4255                                         goto skip_stuff;
 4256                                 }
 4257                         }
 4258                         if (stradd->sas_instrms) {
 4259                                 int cnt;
 4260 
 4261                                 addstream |= 2;
 4262                                 /*
 4263                                  * We allocate inside
 4264                                  * sctp_send_str_reset_req()
 4265                                  */
 4266                                 add_i_strmcnt = stradd->sas_instrms;
 4267                                 cnt = add_i_strmcnt;
 4268                                 cnt += stcb->asoc.streamincnt;
 4269                                 if (cnt > 0x0000ffff) {
 4270                                         /* You can't have more than 64k */
 4271                                         error = EINVAL;
 4272                                         goto skip_stuff;
 4273                                 }
 4274                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
 4275                                         /* More than you are allowed */
 4276                                         error = EINVAL;
 4277                                         goto skip_stuff;
 4278                                 }
 4279                         }
 4280                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
 4281                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4282         skip_stuff:
 4283                         SCTP_TCB_UNLOCK(stcb);
 4284                         break;
 4285                 }
 4286         case SCTP_RESET_ASSOC:
 4287                 {
 4288                         uint32_t *value;
 4289 
 4290                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 4291                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 4292                         if (stcb == NULL) {
 4293                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4294                                 error = ENOENT;
 4295                                 break;
 4296                         }
 4297                         if (stcb->asoc.peer_supports_strreset == 0) {
 4298                                 /*
 4299                                  * Peer does not support the chunk type.
 4300                                  */
 4301                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4302                                 error = EOPNOTSUPP;
 4303                                 SCTP_TCB_UNLOCK(stcb);
 4304                                 break;
 4305                         }
 4306                         if (stcb->asoc.stream_reset_outstanding) {
 4307                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4308                                 error = EALREADY;
 4309                                 SCTP_TCB_UNLOCK(stcb);
 4310                                 break;
 4311                         }
 4312                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
 4313                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4314                         SCTP_TCB_UNLOCK(stcb);
 4315                         break;
 4316                 }
 4317         case SCTP_CONNECT_X:
 4318                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4319                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4320                         error = EINVAL;
 4321                         break;
 4322                 }
 4323                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 4324                 break;
 4325         case SCTP_CONNECT_X_DELAYED:
 4326                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4327                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4328                         error = EINVAL;
 4329                         break;
 4330                 }
 4331                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 4332                 break;
 4333         case SCTP_CONNECT_X_COMPLETE:
 4334                 {
 4335                         struct sockaddr *sa;
 4336                         struct sctp_nets *net;
 4337 
 4338                         /* FIXME MT: check correct? */
 4339                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 4340 
 4341                         /* find tcb */
 4342                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4343                                 SCTP_INP_RLOCK(inp);
 4344                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4345                                 if (stcb) {
 4346                                         SCTP_TCB_LOCK(stcb);
 4347                                         net = sctp_findnet(stcb, sa);
 4348                                 }
 4349                                 SCTP_INP_RUNLOCK(inp);
 4350                         } else {
 4351                                 /*
 4352                                  * We increment here since
 4353                                  * sctp_findassociation_ep_addr() wil do a
 4354                                  * decrement if it finds the stcb as long as
 4355                                  * the locked tcb (last argument) is NOT a
 4356                                  * TCB.. aka NULL.
 4357                                  */
 4358                                 SCTP_INP_INCR_REF(inp);
 4359                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
 4360                                 if (stcb == NULL) {
 4361                                         SCTP_INP_DECR_REF(inp);
 4362                                 }
 4363                         }
 4364 
 4365                         if (stcb == NULL) {
 4366                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4367                                 error = ENOENT;
 4368                                 break;
 4369                         }
 4370                         if (stcb->asoc.delayed_connection == 1) {
 4371                                 stcb->asoc.delayed_connection = 0;
 4372                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4373                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 4374                                     stcb->asoc.primary_destination,
 4375                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 4376                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4377                         } else {
 4378                                 /*
 4379                                  * already expired or did not use delayed
 4380                                  * connectx
 4381                                  */
 4382                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4383                                 error = EALREADY;
 4384                         }
 4385                         SCTP_TCB_UNLOCK(stcb);
 4386                         break;
 4387                 }
 4388         case SCTP_MAX_BURST:
 4389                 {
 4390                         struct sctp_assoc_value *av;
 4391 
 4392                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4393                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4394 
 4395                         if (stcb) {
 4396                                 stcb->asoc.max_burst = av->assoc_value;
 4397                                 SCTP_TCB_UNLOCK(stcb);
 4398                         } else {
 4399                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4400                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4401                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4402                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4403                                         SCTP_INP_WLOCK(inp);
 4404                                         inp->sctp_ep.max_burst = av->assoc_value;
 4405                                         SCTP_INP_WUNLOCK(inp);
 4406                                 }
 4407                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4408                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4409                                         SCTP_INP_RLOCK(inp);
 4410                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4411                                                 SCTP_TCB_LOCK(stcb);
 4412                                                 stcb->asoc.max_burst = av->assoc_value;
 4413                                                 SCTP_TCB_UNLOCK(stcb);
 4414                                         }
 4415                                         SCTP_INP_RUNLOCK(inp);
 4416                                 }
 4417                         }
 4418                         break;
 4419                 }
 4420         case SCTP_MAXSEG:
 4421                 {
 4422                         struct sctp_assoc_value *av;
 4423                         int ovh;
 4424 
 4425                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4426                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4427 
 4428                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4429                                 ovh = SCTP_MED_OVERHEAD;
 4430                         } else {
 4431                                 ovh = SCTP_MED_V4_OVERHEAD;
 4432                         }
 4433                         if (stcb) {
 4434                                 if (av->assoc_value) {
 4435                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 4436                                 } else {
 4437                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4438                                 }
 4439                                 SCTP_TCB_UNLOCK(stcb);
 4440                         } else {
 4441                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4442                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4443                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 4444                                         SCTP_INP_WLOCK(inp);
 4445                                         /*
 4446                                          * FIXME MT: I think this is not in
 4447                                          * tune with the API ID
 4448                                          */
 4449                                         if (av->assoc_value) {
 4450                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
 4451                                         } else {
 4452                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4453                                         }
 4454                                         SCTP_INP_WUNLOCK(inp);
 4455                                 } else {
 4456                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4457                                         error = EINVAL;
 4458                                 }
 4459                         }
 4460                         break;
 4461                 }
 4462         case SCTP_EVENTS:
 4463                 {
 4464                         struct sctp_event_subscribe *events;
 4465 
 4466                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 4467 
 4468                         SCTP_INP_WLOCK(inp);
 4469                         if (events->sctp_data_io_event) {
 4470                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4471                         } else {
 4472                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4473                         }
 4474 
 4475                         if (events->sctp_association_event) {
 4476                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4477                         } else {
 4478                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4479                         }
 4480 
 4481                         if (events->sctp_address_event) {
 4482                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4483                         } else {
 4484                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4485                         }
 4486 
 4487                         if (events->sctp_send_failure_event) {
 4488                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4489                         } else {
 4490                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4491                         }
 4492 
 4493                         if (events->sctp_peer_error_event) {
 4494                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4495                         } else {
 4496                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4497                         }
 4498 
 4499                         if (events->sctp_shutdown_event) {
 4500                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4501                         } else {
 4502                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4503                         }
 4504 
 4505                         if (events->sctp_partial_delivery_event) {
 4506                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4507                         } else {
 4508                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4509                         }
 4510 
 4511                         if (events->sctp_adaptation_layer_event) {
 4512                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4513                         } else {
 4514                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4515                         }
 4516 
 4517                         if (events->sctp_authentication_event) {
 4518                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 4519                         } else {
 4520                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 4521                         }
 4522 
 4523                         if (events->sctp_sender_dry_event) {
 4524                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 4525                         } else {
 4526                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 4527                         }
 4528 
 4529                         if (events->sctp_stream_reset_event) {
 4530                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4531                         } else {
 4532                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4533                         }
 4534                         SCTP_INP_WUNLOCK(inp);
 4535 
 4536                         SCTP_INP_RLOCK(inp);
 4537                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4538                                 SCTP_TCB_LOCK(stcb);
 4539                                 if (events->sctp_association_event) {
 4540                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4541                                 } else {
 4542                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4543                                 }
 4544                                 if (events->sctp_address_event) {
 4545                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4546                                 } else {
 4547                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4548                                 }
 4549                                 if (events->sctp_send_failure_event) {
 4550                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4551                                 } else {
 4552                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4553                                 }
 4554                                 if (events->sctp_peer_error_event) {
 4555                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 4556                                 } else {
 4557                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 4558                                 }
 4559                                 if (events->sctp_shutdown_event) {
 4560                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4561                                 } else {
 4562                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4563                                 }
 4564                                 if (events->sctp_partial_delivery_event) {
 4565                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 4566                                 } else {
 4567                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 4568                                 }
 4569                                 if (events->sctp_adaptation_layer_event) {
 4570                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4571                                 } else {
 4572                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4573                                 }
 4574                                 if (events->sctp_authentication_event) {
 4575                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 4576                                 } else {
 4577                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 4578                                 }
 4579                                 if (events->sctp_sender_dry_event) {
 4580                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 4581                                 } else {
 4582                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 4583                                 }
 4584                                 if (events->sctp_stream_reset_event) {
 4585                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4586                                 } else {
 4587                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4588                                 }
 4589                                 SCTP_TCB_UNLOCK(stcb);
 4590                         }
 4591                         /*
 4592                          * Send up the sender dry event only for 1-to-1
 4593                          * style sockets.
 4594                          */
 4595                         if (events->sctp_sender_dry_event) {
 4596                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4597                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 4598                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4599                                         if (stcb) {
 4600                                                 SCTP_TCB_LOCK(stcb);
 4601                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 4602                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 4603                                                     (stcb->asoc.stream_queue_cnt == 0)) {
 4604                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 4605                                                 }
 4606                                                 SCTP_TCB_UNLOCK(stcb);
 4607                                         }
 4608                                 }
 4609                         }
 4610                         SCTP_INP_RUNLOCK(inp);
 4611                         break;
 4612                 }
 4613         case SCTP_ADAPTATION_LAYER:
 4614                 {
 4615                         struct sctp_setadaptation *adap_bits;
 4616 
 4617                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 4618                         SCTP_INP_WLOCK(inp);
 4619                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 4620                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
 4621                         SCTP_INP_WUNLOCK(inp);
 4622                         break;
 4623                 }
 4624 #ifdef SCTP_DEBUG
 4625         case SCTP_SET_INITIAL_DBG_SEQ:
 4626                 {
 4627                         uint32_t *vvv;
 4628 
 4629                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 4630                         SCTP_INP_WLOCK(inp);
 4631                         inp->sctp_ep.initial_sequence_debug = *vvv;
 4632                         SCTP_INP_WUNLOCK(inp);
 4633                         break;
 4634                 }
 4635 #endif
 4636         case SCTP_DEFAULT_SEND_PARAM:
 4637                 {
 4638                         struct sctp_sndrcvinfo *s_info;
 4639 
 4640                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 4641                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 4642 
 4643                         if (stcb) {
 4644                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 4645                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 4646                                 } else {
 4647                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4648                                         error = EINVAL;
 4649                                 }
 4650                                 SCTP_TCB_UNLOCK(stcb);
 4651                         } else {
 4652                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4653                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4654                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
 4655                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 4656                                         SCTP_INP_WLOCK(inp);
 4657                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 4658                                         SCTP_INP_WUNLOCK(inp);
 4659                                 }
 4660                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
 4661                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 4662                                         SCTP_INP_RLOCK(inp);
 4663                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4664                                                 SCTP_TCB_LOCK(stcb);
 4665                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 4666                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 4667                                                 }
 4668                                                 SCTP_TCB_UNLOCK(stcb);
 4669                                         }
 4670                                         SCTP_INP_RUNLOCK(inp);
 4671                                 }
 4672                         }
 4673                         break;
 4674                 }
 4675         case SCTP_PEER_ADDR_PARAMS:
 4676                 {
 4677                         struct sctp_paddrparams *paddrp;
 4678                         struct sctp_nets *net;
 4679 
 4680                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 4681                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 4682                         net = NULL;
 4683                         if (stcb) {
 4684                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 4685                         } else {
 4686                                 /*
 4687                                  * We increment here since
 4688                                  * sctp_findassociation_ep_addr() wil do a
 4689                                  * decrement if it finds the stcb as long as
 4690                                  * the locked tcb (last argument) is NOT a
 4691                                  * TCB.. aka NULL.
 4692                                  */
 4693                                 SCTP_INP_INCR_REF(inp);
 4694                                 stcb = sctp_findassociation_ep_addr(&inp,
 4695                                     (struct sockaddr *)&paddrp->spp_address,
 4696                                     &net, NULL, NULL);
 4697                                 if (stcb == NULL) {
 4698                                         SCTP_INP_DECR_REF(inp);
 4699                                 }
 4700                         }
 4701                         if (stcb && (net == NULL)) {
 4702                                 struct sockaddr *sa;
 4703 
 4704                                 sa = (struct sockaddr *)&paddrp->spp_address;
 4705 #ifdef INET
 4706                                 if (sa->sa_family == AF_INET) {
 4707 
 4708                                         struct sockaddr_in *sin;
 4709 
 4710                                         sin = (struct sockaddr_in *)sa;
 4711                                         if (sin->sin_addr.s_addr) {
 4712                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4713                                                 SCTP_TCB_UNLOCK(stcb);
 4714                                                 error = EINVAL;
 4715                                                 break;
 4716                                         }
 4717                                 } else
 4718 #endif
 4719 #ifdef INET6
 4720                                 if (sa->sa_family == AF_INET6) {
 4721                                         struct sockaddr_in6 *sin6;
 4722 
 4723                                         sin6 = (struct sockaddr_in6 *)sa;
 4724                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 4725                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4726                                                 SCTP_TCB_UNLOCK(stcb);
 4727                                                 error = EINVAL;
 4728                                                 break;
 4729                                         }
 4730                                 } else
 4731 #endif
 4732                                 {
 4733                                         error = EAFNOSUPPORT;
 4734                                         SCTP_TCB_UNLOCK(stcb);
 4735                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4736                                         break;
 4737                                 }
 4738                         }
 4739                         /* sanity checks */
 4740                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 4741                                 if (stcb)
 4742                                         SCTP_TCB_UNLOCK(stcb);
 4743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4744                                 return (EINVAL);
 4745                         }
 4746                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 4747                                 if (stcb)
 4748                                         SCTP_TCB_UNLOCK(stcb);
 4749                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4750                                 return (EINVAL);
 4751                         }
 4752                         if (stcb) {
 4753                                 /************************TCB SPECIFIC SET ******************/
 4754                                 /*
 4755                                  * do we change the timer for HB, we run
 4756                                  * only one?
 4757                                  */
 4758                                 int ovh = 0;
 4759 
 4760                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4761                                         ovh = SCTP_MED_OVERHEAD;
 4762                                 } else {
 4763                                         ovh = SCTP_MED_V4_OVERHEAD;
 4764                                 }
 4765 
 4766                                 /* network sets ? */
 4767                                 if (net) {
 4768                                         /************************NET SPECIFIC SET ******************/
 4769                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 4770                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 4771                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
 4772                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4773                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4774                                                 }
 4775                                                 net->dest_state |= SCTP_ADDR_NOHB;
 4776                                         }
 4777                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 4778                                                 if (paddrp->spp_hbinterval) {
 4779                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
 4780                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4781                                                         net->heart_beat_delay = 0;
 4782                                                 }
 4783                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4784                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4785                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4786                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 4787                                         }
 4788                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 4789                                                 /* on demand HB */
 4790                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4791                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 4792                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4793                                         }
 4794                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 4795                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4796                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 4797                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4798                                                 }
 4799                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
 4800                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
 4801                                                         net->mtu = paddrp->spp_pathmtu + ovh;
 4802                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 4803                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
 4804                                                         }
 4805                                                 }
 4806                                         }
 4807                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 4808                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4809                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 4810                                                 }
 4811                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 4812                                         }
 4813                                         if (paddrp->spp_pathmaxrxt) {
 4814                                                 if (net->dest_state & SCTP_ADDR_PF) {
 4815                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 4816                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 4817                                                         }
 4818                                                 } else {
 4819                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 4820                                                             (net->error_count > net->pf_threshold)) {
 4821                                                                 net->dest_state |= SCTP_ADDR_PF;
 4822                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4823                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 4824                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 4825                                                         }
 4826                                                 }
 4827                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 4828                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 4829                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 4830                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 4831                                                         }
 4832                                                 } else {
 4833                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
 4834                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 4835                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 4836                                                         }
 4837                                                 }
 4838                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 4839                                         }
 4840                                         if (paddrp->spp_flags & SPP_DSCP) {
 4841                                                 net->dscp = paddrp->spp_dscp & 0xfc;
 4842                                                 net->dscp |= 0x01;
 4843                                         }
 4844 #ifdef INET6
 4845                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 4846                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 4847                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4848                                                         net->flowlabel |= 0x80000000;
 4849                                                 }
 4850                                         }
 4851 #endif
 4852                                 } else {
 4853                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 4854                                         if (paddrp->spp_pathmaxrxt) {
 4855                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 4856                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4857                                                         if (net->dest_state & SCTP_ADDR_PF) {
 4858                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 4859                                                                         net->dest_state &= ~SCTP_ADDR_PF;
 4860                                                                 }
 4861                                                         } else {
 4862                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 4863                                                                     (net->error_count > net->pf_threshold)) {
 4864                                                                         net->dest_state |= SCTP_ADDR_PF;
 4865                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4866                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 4867                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 4868                                                                 }
 4869                                                         }
 4870                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 4871                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 4872                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 4873                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 4874                                                                 }
 4875                                                         } else {
 4876                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
 4877                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 4878                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 4879                                                                 }
 4880                                                         }
 4881                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
 4882                                                 }
 4883                                         }
 4884                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 4885                                                 if (paddrp->spp_hbinterval) {
 4886                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 4887                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4888                                                         stcb->asoc.heart_beat_delay = 0;
 4889                                                 }
 4890                                                 /* Turn back on the timer */
 4891                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4892                                                         if (paddrp->spp_hbinterval) {
 4893                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
 4894                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4895                                                                 net->heart_beat_delay = 0;
 4896                                                         }
 4897                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 4898                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 4899                                                         }
 4900                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4901                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4902                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4903                                                 }
 4904                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4905                                         }
 4906                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 4907                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4908                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
 4909                                                                 net->dest_state |= SCTP_ADDR_NOHB;
 4910                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 4911                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4912                                                                 }
 4913                                                         }
 4914                                                 }
 4915                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4916                                         }
 4917                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 4918                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4919                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4920                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 4921                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4922                                                         }
 4923                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
 4924                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
 4925                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
 4926                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 4927                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
 4928                                                                 }
 4929                                                         }
 4930                                                 }
 4931                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4932                                         }
 4933                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 4934                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4935                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4936                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 4937                                                         }
 4938                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 4939                                                 }
 4940                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4941                                         }
 4942                                         if (paddrp->spp_flags & SPP_DSCP) {
 4943                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4944                                                         net->dscp = paddrp->spp_dscp & 0xfc;
 4945                                                         net->dscp |= 0x01;
 4946                                                 }
 4947                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
 4948                                                 stcb->asoc.default_dscp |= 0x01;
 4949                                         }
 4950 #ifdef INET6
 4951                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 4952                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4953                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 4954                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4955                                                                 net->flowlabel |= 0x80000000;
 4956                                                         }
 4957                                                 }
 4958                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4959                                                 stcb->asoc.default_flowlabel |= 0x80000000;
 4960                                         }
 4961 #endif
 4962                                 }
 4963                                 SCTP_TCB_UNLOCK(stcb);
 4964                         } else {
 4965                                 /************************NO TCB, SET TO default stuff ******************/
 4966                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4967                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4968                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 4969                                         SCTP_INP_WLOCK(inp);
 4970                                         /*
 4971                                          * For the TOS/FLOWLABEL stuff you
 4972                                          * set it with the options on the
 4973                                          * socket
 4974                                          */
 4975                                         if (paddrp->spp_pathmaxrxt) {
 4976                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
 4977                                         }
 4978                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 4979                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 4980                                         else if (paddrp->spp_hbinterval) {
 4981                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 4982                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
 4983                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 4984                                         }
 4985                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 4986                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4987                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 4988                                                 } else if (paddrp->spp_hbinterval) {
 4989                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 4990                                                 }
 4991                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4992                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
 4993                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4994                                         }
 4995                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 4996                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4997                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 4998                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4999                                         }
 5000                                         if (paddrp->spp_flags & SPP_DSCP) {
 5001                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
 5002                                                 inp->sctp_ep.default_dscp |= 0x01;
 5003                                         }
 5004 #ifdef INET6
 5005                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5006                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 5007                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5008                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
 5009                                                 }
 5010                                         }
 5011 #endif
 5012                                         SCTP_INP_WUNLOCK(inp);
 5013                                 } else {
 5014                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5015                                         error = EINVAL;
 5016                                 }
 5017                         }
 5018                         break;
 5019                 }
 5020         case SCTP_RTOINFO:
 5021                 {
 5022                         struct sctp_rtoinfo *srto;
 5023                         uint32_t new_init, new_min, new_max;
 5024 
 5025                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
 5026                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 5027 
 5028                         if (stcb) {
 5029                                 if (srto->srto_initial)
 5030                                         new_init = srto->srto_initial;
 5031                                 else
 5032                                         new_init = stcb->asoc.initial_rto;
 5033                                 if (srto->srto_max)
 5034                                         new_max = srto->srto_max;
 5035                                 else
 5036                                         new_max = stcb->asoc.maxrto;
 5037                                 if (srto->srto_min)
 5038                                         new_min = srto->srto_min;
 5039                                 else
 5040                                         new_min = stcb->asoc.minrto;
 5041                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 5042                                         stcb->asoc.initial_rto = new_init;
 5043                                         stcb->asoc.maxrto = new_max;
 5044                                         stcb->asoc.minrto = new_min;
 5045                                 } else {
 5046                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5047                                         error = EINVAL;
 5048                                 }
 5049                                 SCTP_TCB_UNLOCK(stcb);
 5050                         } else {
 5051                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5052                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5053                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 5054                                         SCTP_INP_WLOCK(inp);
 5055                                         if (srto->srto_initial)
 5056                                                 new_init = srto->srto_initial;
 5057                                         else
 5058                                                 new_init = inp->sctp_ep.initial_rto;
 5059                                         if (srto->srto_max)
 5060                                                 new_max = srto->srto_max;
 5061                                         else
 5062                                                 new_max = inp->sctp_ep.sctp_maxrto;
 5063                                         if (srto->srto_min)
 5064                                                 new_min = srto->srto_min;
 5065                                         else
 5066                                                 new_min = inp->sctp_ep.sctp_minrto;
 5067                                         if ((new_min <= new_init) && (new_init <= new_max)) {
 5068                                                 inp->sctp_ep.initial_rto = new_init;
 5069                                                 inp->sctp_ep.sctp_maxrto = new_max;
 5070                                                 inp->sctp_ep.sctp_minrto = new_min;
 5071                                         } else {
 5072                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5073                                                 error = EINVAL;
 5074                                         }
 5075                                         SCTP_INP_WUNLOCK(inp);
 5076                                 } else {
 5077                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5078                                         error = EINVAL;
 5079                                 }
 5080                         }
 5081                         break;
 5082                 }
 5083         case SCTP_ASSOCINFO:
 5084                 {
 5085                         struct sctp_assocparams *sasoc;
 5086 
 5087                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
 5088                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 5089                         if (sasoc->sasoc_cookie_life) {
 5090                                 /* boundary check the cookie life */
 5091                                 if (sasoc->sasoc_cookie_life < 1000)
 5092                                         sasoc->sasoc_cookie_life = 1000;
 5093                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 5094                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 5095                                 }
 5096                         }
 5097                         if (stcb) {
 5098                                 if (sasoc->sasoc_asocmaxrxt)
 5099                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 5100                                 if (sasoc->sasoc_cookie_life) {
 5101                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5102                                 }
 5103                                 SCTP_TCB_UNLOCK(stcb);
 5104                         } else {
 5105                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5106                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5107                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 5108                                         SCTP_INP_WLOCK(inp);
 5109                                         if (sasoc->sasoc_asocmaxrxt)
 5110                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 5111                                         if (sasoc->sasoc_cookie_life) {
 5112                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5113                                         }
 5114                                         SCTP_INP_WUNLOCK(inp);
 5115                                 } else {
 5116                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5117                                         error = EINVAL;
 5118                                 }
 5119                         }
 5120                         break;
 5121                 }
 5122         case SCTP_INITMSG:
 5123                 {
 5124                         struct sctp_initmsg *sinit;
 5125 
 5126                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
 5127                         SCTP_INP_WLOCK(inp);
 5128                         if (sinit->sinit_num_ostreams)
 5129                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
 5130 
 5131                         if (sinit->sinit_max_instreams)
 5132                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
 5133 
 5134                         if (sinit->sinit_max_attempts)
 5135                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
 5136 
 5137                         if (sinit->sinit_max_init_timeo)
 5138                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
 5139                         SCTP_INP_WUNLOCK(inp);
 5140                         break;
 5141                 }
 5142         case SCTP_PRIMARY_ADDR:
 5143                 {
 5144                         struct sctp_setprim *spa;
 5145                         struct sctp_nets *net;
 5146 
 5147                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 5148                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 5149 
 5150                         net = NULL;
 5151                         if (stcb) {
 5152                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
 5153                         } else {
 5154                                 /*
 5155                                  * We increment here since
 5156                                  * sctp_findassociation_ep_addr() wil do a
 5157                                  * decrement if it finds the stcb as long as
 5158                                  * the locked tcb (last argument) is NOT a
 5159                                  * TCB.. aka NULL.
 5160                                  */
 5161                                 SCTP_INP_INCR_REF(inp);
 5162                                 stcb = sctp_findassociation_ep_addr(&inp,
 5163                                     (struct sockaddr *)&spa->ssp_addr,
 5164                                     &net, NULL, NULL);
 5165                                 if (stcb == NULL) {
 5166                                         SCTP_INP_DECR_REF(inp);
 5167                                 }
 5168                         }
 5169 
 5170                         if ((stcb) && (net)) {
 5171                                 if ((net != stcb->asoc.primary_destination) &&
 5172                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
 5173                                         /* Ok we need to set it */
 5174                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
 5175                                                 if ((stcb->asoc.alternate) &&
 5176                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
 5177                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
 5178                                                         sctp_free_remote_addr(stcb->asoc.alternate);
 5179                                                         stcb->asoc.alternate = NULL;
 5180                                                 }
 5181                                         }
 5182                                 }
 5183                         } else {
 5184                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5185                                 error = EINVAL;
 5186                         }
 5187                         if (stcb) {
 5188                                 SCTP_TCB_UNLOCK(stcb);
 5189                         }
 5190                         break;
 5191                 }
 5192         case SCTP_SET_DYNAMIC_PRIMARY:
 5193                 {
 5194                         union sctp_sockstore *ss;
 5195 
 5196                         error = priv_check(curthread,
 5197                             PRIV_NETINET_RESERVEDPORT);
 5198                         if (error)
 5199                                 break;
 5200 
 5201                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
 5202                         /* SUPER USER CHECK? */
 5203                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
 5204                         break;
 5205                 }
 5206         case SCTP_SET_PEER_PRIMARY_ADDR:
 5207                 {
 5208                         struct sctp_setpeerprim *sspp;
 5209 
 5210                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
 5211                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
 5212                         if (stcb != NULL) {
 5213                                 struct sctp_ifa *ifa;
 5214 
 5215                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
 5216                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
 5217                                 if (ifa == NULL) {
 5218                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5219                                         error = EINVAL;
 5220                                         goto out_of_it;
 5221                                 }
 5222                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 5223                                         /*
 5224                                          * Must validate the ifa found is in
 5225                                          * our ep
 5226                                          */
 5227                                         struct sctp_laddr *laddr;
 5228                                         int found = 0;
 5229 
 5230                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 5231                                                 if (laddr->ifa == NULL) {
 5232                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
 5233                                                             __FUNCTION__);
 5234                                                         continue;
 5235                                                 }
 5236                                                 if (laddr->ifa == ifa) {
 5237                                                         found = 1;
 5238                                                         break;
 5239                                                 }
 5240                                         }
 5241                                         if (!found) {
 5242                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5243                                                 error = EINVAL;
 5244                                                 goto out_of_it;
 5245                                         }
 5246                                 }
 5247                                 if (sctp_set_primary_ip_address_sa(stcb,
 5248                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
 5249                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5250                                         error = EINVAL;
 5251                                 }
 5252                 out_of_it:
 5253                                 SCTP_TCB_UNLOCK(stcb);
 5254                         } else {
 5255                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5256                                 error = EINVAL;
 5257                         }
 5258                         break;
 5259                 }
 5260         case SCTP_BINDX_ADD_ADDR:
 5261                 {
 5262                         struct sctp_getaddresses *addrs;
 5263                         struct thread *td;
 5264 
 5265                         td = (struct thread *)p;
 5266                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 5267                             optsize);
 5268 #ifdef INET
 5269                         if (addrs->addr->sa_family == AF_INET) {
 5270                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5271                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5272                                         error = EINVAL;
 5273                                         break;
 5274                                 }
 5275                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5276                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5277                                         break;
 5278                                 }
 5279                         } else
 5280 #endif
 5281 #ifdef INET6
 5282                         if (addrs->addr->sa_family == AF_INET6) {
 5283                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5284                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5285                                         error = EINVAL;
 5286                                         break;
 5287                                 }
 5288                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5289                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5290                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5291                                         break;
 5292                                 }
 5293                         } else
 5294 #endif
 5295                         {
 5296                                 error = EAFNOSUPPORT;
 5297                                 break;
 5298                         }
 5299                         sctp_bindx_add_address(so, inp, addrs->addr,
 5300                             addrs->sget_assoc_id, vrf_id,
 5301                             &error, p);
 5302                         break;
 5303                 }
 5304         case SCTP_BINDX_REM_ADDR:
 5305                 {
 5306                         struct sctp_getaddresses *addrs;
 5307                         struct thread *td;
 5308 
 5309                         td = (struct thread *)p;
 5310 
 5311                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 5312 #ifdef INET
 5313                         if (addrs->addr->sa_family == AF_INET) {
 5314                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5315                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5316                                         error = EINVAL;
 5317                                         break;
 5318                                 }
 5319                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5320                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5321                                         break;
 5322                                 }
 5323                         } else
 5324 #endif
 5325 #ifdef INET6
 5326                         if (addrs->addr->sa_family == AF_INET6) {
 5327                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5328                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5329                                         error = EINVAL;
 5330                                         break;
 5331                                 }
 5332                                 if (td != NULL &&
 5333                                     (error = prison_local_ip6(td->td_ucred,
 5334                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5335                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5336                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5337                                         break;
 5338                                 }
 5339                         } else
 5340 #endif
 5341                         {
 5342                                 error = EAFNOSUPPORT;
 5343                                 break;
 5344                         }
 5345                         sctp_bindx_delete_address(inp, addrs->addr,
 5346                             addrs->sget_assoc_id, vrf_id,
 5347                             &error);
 5348                         break;
 5349                 }
 5350         case SCTP_EVENT:
 5351                 {
 5352                         struct sctp_event *event;
 5353                         uint32_t event_type;
 5354 
 5355                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
 5356                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 5357                         switch (event->se_type) {
 5358                         case SCTP_ASSOC_CHANGE:
 5359                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 5360                                 break;
 5361                         case SCTP_PEER_ADDR_CHANGE:
 5362                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 5363                                 break;
 5364                         case SCTP_REMOTE_ERROR:
 5365                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 5366                                 break;
 5367                         case SCTP_SEND_FAILED:
 5368                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 5369                                 break;
 5370                         case SCTP_SHUTDOWN_EVENT:
 5371                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 5372                                 break;
 5373                         case SCTP_ADAPTATION_INDICATION:
 5374                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 5375                                 break;
 5376                         case SCTP_PARTIAL_DELIVERY_EVENT:
 5377                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 5378                                 break;
 5379                         case SCTP_AUTHENTICATION_EVENT:
 5380                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 5381                                 break;
 5382                         case SCTP_STREAM_RESET_EVENT:
 5383                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 5384                                 break;
 5385                         case SCTP_SENDER_DRY_EVENT:
 5386                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 5387                                 break;
 5388                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 5389                                 event_type = 0;
 5390                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 5391                                 error = ENOTSUP;
 5392                                 break;
 5393                         case SCTP_ASSOC_RESET_EVENT:
 5394                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 5395                                 break;
 5396                         case SCTP_STREAM_CHANGE_EVENT:
 5397                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 5398                                 break;
 5399                         case SCTP_SEND_FAILED_EVENT:
 5400                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 5401                                 break;
 5402                         default:
 5403                                 event_type = 0;
 5404                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5405                                 error = EINVAL;
 5406                                 break;
 5407                         }
 5408                         if (event_type > 0) {
 5409                                 if (stcb) {
 5410                                         if (event->se_on) {
 5411                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 5412                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
 5413                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 5414                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 5415                                                             (stcb->asoc.stream_queue_cnt == 0)) {
 5416                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 5417                                                         }
 5418                                                 }
 5419                                         } else {
 5420                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 5421                                         }
 5422                                         SCTP_TCB_UNLOCK(stcb);
 5423                                 } else {
 5424                                         /*
 5425                                          * We don't want to send up a storm
 5426                                          * of events, so return an error for
 5427                                          * sender dry events
 5428                                          */
 5429                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
 5430                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
 5431                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
 5432                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
 5433                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
 5434                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 5435                                                 error = ENOTSUP;
 5436                                                 break;
 5437                                         }
 5438                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5439                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5440                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
 5441                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 5442                                                 SCTP_INP_WLOCK(inp);
 5443                                                 if (event->se_on) {
 5444                                                         sctp_feature_on(inp, event_type);
 5445                                                 } else {
 5446                                                         sctp_feature_off(inp, event_type);
 5447                                                 }
 5448                                                 SCTP_INP_WUNLOCK(inp);
 5449                                         }
 5450                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
 5451                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 5452                                                 SCTP_INP_RLOCK(inp);
 5453                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5454                                                         SCTP_TCB_LOCK(stcb);
 5455                                                         if (event->se_on) {
 5456                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 5457                                                         } else {
 5458                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 5459                                                         }
 5460                                                         SCTP_TCB_UNLOCK(stcb);
 5461                                                 }
 5462                                                 SCTP_INP_RUNLOCK(inp);
 5463                                         }
 5464                                 }
 5465                         }
 5466                         break;
 5467                 }
 5468         case SCTP_RECVRCVINFO:
 5469                 {
 5470                         int *onoff;
 5471 
 5472                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 5473                         SCTP_INP_WLOCK(inp);
 5474                         if (*onoff != 0) {
 5475                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 5476                         } else {
 5477                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 5478                         }
 5479                         SCTP_INP_WUNLOCK(inp);
 5480                         break;
 5481                 }
 5482         case SCTP_RECVNXTINFO:
 5483                 {
 5484                         int *onoff;
 5485 
 5486                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 5487                         SCTP_INP_WLOCK(inp);
 5488                         if (*onoff != 0) {
 5489                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 5490                         } else {
 5491                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 5492                         }
 5493                         SCTP_INP_WUNLOCK(inp);
 5494                         break;
 5495                 }
 5496         case SCTP_DEFAULT_SNDINFO:
 5497                 {
 5498                         struct sctp_sndinfo *info;
 5499                         uint16_t policy;
 5500 
 5501                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
 5502                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 5503 
 5504                         if (stcb) {
 5505                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 5506                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 5507                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 5508                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 5509                                         stcb->asoc.def_send.sinfo_flags |= policy;
 5510                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 5511                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 5512                                 } else {
 5513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5514                                         error = EINVAL;
 5515                                 }
 5516                                 SCTP_TCB_UNLOCK(stcb);
 5517                         } else {
 5518                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5519                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5520                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
 5521                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 5522                                         SCTP_INP_WLOCK(inp);
 5523                                         inp->def_send.sinfo_stream = info->snd_sid;
 5524                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 5525                                         inp->def_send.sinfo_flags = info->snd_flags;
 5526                                         inp->def_send.sinfo_flags |= policy;
 5527                                         inp->def_send.sinfo_ppid = info->snd_ppid;
 5528                                         inp->def_send.sinfo_context = info->snd_context;
 5529                                         SCTP_INP_WUNLOCK(inp);
 5530                                 }
 5531                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
 5532                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 5533                                         SCTP_INP_RLOCK(inp);
 5534                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5535                                                 SCTP_TCB_LOCK(stcb);
 5536                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 5537                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 5538                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 5539                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 5540                                                         stcb->asoc.def_send.sinfo_flags |= policy;
 5541                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 5542                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 5543                                                 }
 5544                                                 SCTP_TCB_UNLOCK(stcb);
 5545                                         }
 5546                                         SCTP_INP_RUNLOCK(inp);
 5547                                 }
 5548                         }
 5549                         break;
 5550                 }
 5551         case SCTP_DEFAULT_PRINFO:
 5552                 {
 5553                         struct sctp_default_prinfo *info;
 5554 
 5555                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
 5556                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 5557 
 5558                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
 5559                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5560                                 error = EINVAL;
 5561                                 break;
 5562                         }
 5563                         if (stcb) {
 5564                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 5565                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 5566                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 5567                                 SCTP_TCB_UNLOCK(stcb);
 5568                         } else {
 5569                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5570                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5571                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
 5572                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 5573                                         SCTP_INP_WLOCK(inp);
 5574                                         inp->def_send.sinfo_flags &= 0xfff0;
 5575                                         inp->def_send.sinfo_flags |= info->pr_policy;
 5576                                         inp->def_send.sinfo_timetolive = info->pr_value;
 5577                                         SCTP_INP_WUNLOCK(inp);
 5578                                 }
 5579                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
 5580                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 5581                                         SCTP_INP_RLOCK(inp);
 5582                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5583                                                 SCTP_TCB_LOCK(stcb);
 5584                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 5585                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 5586                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 5587                                                 SCTP_TCB_UNLOCK(stcb);
 5588                                         }
 5589                                         SCTP_INP_RUNLOCK(inp);
 5590                                 }
 5591                         }
 5592                         break;
 5593                 }
 5594         case SCTP_PEER_ADDR_THLDS:
 5595                 /* Applies to the specific association */
 5596                 {
 5597                         struct sctp_paddrthlds *thlds;
 5598                         struct sctp_nets *net;
 5599 
 5600                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
 5601                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 5602                         net = NULL;
 5603                         if (stcb) {
 5604                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
 5605                         } else {
 5606                                 /*
 5607                                  * We increment here since
 5608                                  * sctp_findassociation_ep_addr() wil do a
 5609                                  * decrement if it finds the stcb as long as
 5610                                  * the locked tcb (last argument) is NOT a
 5611                                  * TCB.. aka NULL.
 5612                                  */
 5613                                 SCTP_INP_INCR_REF(inp);
 5614                                 stcb = sctp_findassociation_ep_addr(&inp,
 5615                                     (struct sockaddr *)&thlds->spt_assoc_id,
 5616                                     &net, NULL, NULL);
 5617                                 if (stcb == NULL) {
 5618                                         SCTP_INP_DECR_REF(inp);
 5619                                 }
 5620                         }
 5621                         if (stcb && (net == NULL)) {
 5622                                 struct sockaddr *sa;
 5623 
 5624                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
 5625 #ifdef INET
 5626                                 if (sa->sa_family == AF_INET) {
 5627 
 5628                                         struct sockaddr_in *sin;
 5629 
 5630                                         sin = (struct sockaddr_in *)sa;
 5631                                         if (sin->sin_addr.s_addr) {
 5632                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5633                                                 SCTP_TCB_UNLOCK(stcb);
 5634                                                 error = EINVAL;
 5635                                                 break;
 5636                                         }
 5637                                 } else
 5638 #endif
 5639 #ifdef INET6
 5640                                 if (sa->sa_family == AF_INET6) {
 5641                                         struct sockaddr_in6 *sin6;
 5642 
 5643                                         sin6 = (struct sockaddr_in6 *)sa;
 5644                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5645                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5646                                                 SCTP_TCB_UNLOCK(stcb);
 5647                                                 error = EINVAL;
 5648                                                 break;
 5649                                         }
 5650                                 } else
 5651 #endif
 5652                                 {
 5653                                         error = EAFNOSUPPORT;
 5654                                         SCTP_TCB_UNLOCK(stcb);
 5655                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5656                                         break;
 5657                                 }
 5658                         }
 5659                         if (stcb) {
 5660                                 if (net) {
 5661                                         if (net->dest_state & SCTP_ADDR_PF) {
 5662                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 5663                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
 5664                                                         net->dest_state &= ~SCTP_ADDR_PF;
 5665                                                 }
 5666                                         } else {
 5667                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 5668                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 5669                                                         net->dest_state |= SCTP_ADDR_PF;
 5670                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5671                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 5672                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5673                                                 }
 5674                                         }
 5675                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5676                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 5677                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5678                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5679                                                 }
 5680                                         } else {
 5681                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 5682                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 5683                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5684                                                 }
 5685                                         }
 5686                                         net->failure_threshold = thlds->spt_pathmaxrxt;
 5687                                         net->pf_threshold = thlds->spt_pathpfthld;
 5688                                 } else {
 5689                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5690                                                 if (net->dest_state & SCTP_ADDR_PF) {
 5691                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 5692                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
 5693                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 5694                                                         }
 5695                                                 } else {
 5696                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 5697                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 5698                                                                 net->dest_state |= SCTP_ADDR_PF;
 5699                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5700                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 5701                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5702                                                         }
 5703                                                 }
 5704                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5705                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 5706                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5707                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5708                                                         }
 5709                                                 } else {
 5710                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 5711                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 5712                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5713                                                         }
 5714                                                 }
 5715                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
 5716                                                 net->pf_threshold = thlds->spt_pathpfthld;
 5717                                         }
 5718                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
 5719                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
 5720                                 }
 5721                         } else {
 5722                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5723                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5724                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 5725                                         SCTP_INP_WLOCK(inp);
 5726                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
 5727                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
 5728                                         SCTP_INP_WUNLOCK(inp);
 5729                                 } else {
 5730                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5731                                         error = EINVAL;
 5732                                 }
 5733                         }
 5734                         break;
 5735                 }
 5736         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 5737                 {
 5738                         struct sctp_udpencaps *encaps;
 5739                         struct sctp_nets *net;
 5740 
 5741                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
 5742                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 5743                         if (stcb) {
 5744                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 5745                         } else {
 5746                                 /*
 5747                                  * We increment here since
 5748                                  * sctp_findassociation_ep_addr() wil do a
 5749                                  * decrement if it finds the stcb as long as
 5750                                  * the locked tcb (last argument) is NOT a
 5751                                  * TCB.. aka NULL.
 5752                                  */
 5753                                 net = NULL;
 5754                                 SCTP_INP_INCR_REF(inp);
 5755                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 5756                                 if (stcb == NULL) {
 5757                                         SCTP_INP_DECR_REF(inp);
 5758                                 }
 5759                         }
 5760                         if (stcb && (net == NULL)) {
 5761                                 struct sockaddr *sa;
 5762 
 5763                                 sa = (struct sockaddr *)&encaps->sue_address;
 5764 #ifdef INET
 5765                                 if (sa->sa_family == AF_INET) {
 5766 
 5767                                         struct sockaddr_in *sin;
 5768 
 5769                                         sin = (struct sockaddr_in *)sa;
 5770                                         if (sin->sin_addr.s_addr) {
 5771                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5772                                                 SCTP_TCB_UNLOCK(stcb);
 5773                                                 error = EINVAL;
 5774                                                 break;
 5775                                         }
 5776                                 } else
 5777 #endif
 5778 #ifdef INET6
 5779                                 if (sa->sa_family == AF_INET6) {
 5780                                         struct sockaddr_in6 *sin6;
 5781 
 5782                                         sin6 = (struct sockaddr_in6 *)sa;
 5783                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5784                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5785                                                 SCTP_TCB_UNLOCK(stcb);
 5786                                                 error = EINVAL;
 5787                                                 break;
 5788                                         }
 5789                                 } else
 5790 #endif
 5791                                 {
 5792                                         error = EAFNOSUPPORT;
 5793                                         SCTP_TCB_UNLOCK(stcb);
 5794                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5795                                         break;
 5796                                 }
 5797                         }
 5798                         if (stcb) {
 5799                                 if (net) {
 5800                                         net->port = encaps->sue_port;
 5801                                 } else {
 5802                                         stcb->asoc.port = encaps->sue_port;
 5803                                 }
 5804                                 SCTP_TCB_UNLOCK(stcb);
 5805                         } else {
 5806                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5807                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5808                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 5809                                         SCTP_INP_WLOCK(inp);
 5810                                         inp->sctp_ep.port = encaps->sue_port;
 5811                                         SCTP_INP_WUNLOCK(inp);
 5812                                 } else {
 5813                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5814                                         error = EINVAL;
 5815                                 }
 5816                         }
 5817                         break;
 5818                 }
 5819         default:
 5820                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 5821                 error = ENOPROTOOPT;
 5822                 break;
 5823         }                       /* end switch (opt) */
 5824         return (error);
 5825 }
 5826 
 5827 int
 5828 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 5829 {
 5830         void *optval = NULL;
 5831         size_t optsize = 0;
 5832         void *p;
 5833         int error = 0;
 5834 
 5835         if (sopt->sopt_level != IPPROTO_SCTP) {
 5836                 /* wrong proto level... send back up to IP */
 5837 #ifdef INET6
 5838                 if (INP_CHECK_SOCKAF(so, AF_INET6))
 5839                         error = ip6_ctloutput(so, sopt);
 5840 #endif                          /* INET6 */
 5841 #if defined(INET) && defined(INET6)
 5842                 else
 5843 #endif
 5844 #ifdef INET
 5845                         error = ip_ctloutput(so, sopt);
 5846 #endif
 5847                 return (error);
 5848         }
 5849         optsize = sopt->sopt_valsize;
 5850         if (optsize) {
 5851                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
 5852                 if (optval == NULL) {
 5853                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 5854                         return (ENOBUFS);
 5855                 }
 5856                 error = sooptcopyin(sopt, optval, optsize, optsize);
 5857                 if (error) {
 5858                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5859                         goto out;
 5860                 }
 5861         }
 5862         p = (void *)sopt->sopt_td;
 5863         if (sopt->sopt_dir == SOPT_SET) {
 5864                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 5865         } else if (sopt->sopt_dir == SOPT_GET) {
 5866                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 5867         } else {
 5868                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5869                 error = EINVAL;
 5870         }
 5871         if ((error == 0) && (optval != NULL)) {
 5872                 error = sooptcopyout(sopt, optval, optsize);
 5873                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5874         } else if (optval != NULL) {
 5875                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5876         }
 5877 out:
 5878         return (error);
 5879 }
 5880 
 5881 #ifdef INET
 5882 static int
 5883 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 5884 {
 5885         int error = 0;
 5886         int create_lock_on = 0;
 5887         uint32_t vrf_id;
 5888         struct sctp_inpcb *inp;
 5889         struct sctp_tcb *stcb = NULL;
 5890 
 5891         inp = (struct sctp_inpcb *)so->so_pcb;
 5892         if (inp == NULL) {
 5893                 /* I made the same as TCP since we are not setup? */
 5894                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5895                 return (ECONNRESET);
 5896         }
 5897         if (addr == NULL) {
 5898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5899                 return EINVAL;
 5900         }
 5901         switch (addr->sa_family) {
 5902 #ifdef INET6
 5903         case AF_INET6:
 5904                 {
 5905                         struct sockaddr_in6 *sin6p;
 5906 
 5907                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
 5908                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5909                                 return (EINVAL);
 5910                         }
 5911                         sin6p = (struct sockaddr_in6 *)addr;
 5912                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
 5913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5914                                 return (error);
 5915                         }
 5916                         break;
 5917                 }
 5918 #endif
 5919 #ifdef INET
 5920         case AF_INET:
 5921                 {
 5922                         struct sockaddr_in *sinp;
 5923 
 5924                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
 5925                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5926                                 return (EINVAL);
 5927                         }
 5928                         sinp = (struct sockaddr_in *)addr;
 5929                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
 5930                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5931                                 return (error);
 5932                         }
 5933                         break;
 5934                 }
 5935 #endif
 5936         default:
 5937                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 5938                 return (EAFNOSUPPORT);
 5939         }
 5940         SCTP_INP_INCR_REF(inp);
 5941         SCTP_ASOC_CREATE_LOCK(inp);
 5942         create_lock_on = 1;
 5943 
 5944 
 5945         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 5946             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 5947                 /* Should I really unlock ? */
 5948                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 5949                 error = EFAULT;
 5950                 goto out_now;
 5951         }
 5952 #ifdef INET6
 5953         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 5954             (addr->sa_family == AF_INET6)) {
 5955                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5956                 error = EINVAL;
 5957                 goto out_now;
 5958         }
 5959 #endif
 5960         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 5961             SCTP_PCB_FLAGS_UNBOUND) {
 5962                 /* Bind a ephemeral port */
 5963                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 5964                 if (error) {
 5965                         goto out_now;
 5966                 }
 5967         }
 5968         /* Now do we connect? */
 5969         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 5970             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 5971                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5972                 error = EINVAL;
 5973                 goto out_now;
 5974         }
 5975         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 5976             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 5977                 /* We are already connected AND the TCP model */
 5978                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 5979                 error = EADDRINUSE;
 5980                 goto out_now;
 5981         }
 5982         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 5983                 SCTP_INP_RLOCK(inp);
 5984                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 5985                 SCTP_INP_RUNLOCK(inp);
 5986         } else {
 5987                 /*
 5988                  * We increment here since sctp_findassociation_ep_addr()
 5989                  * will do a decrement if it finds the stcb as long as the
 5990                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
 5991                  */
 5992                 SCTP_INP_INCR_REF(inp);
 5993                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
 5994                 if (stcb == NULL) {
 5995                         SCTP_INP_DECR_REF(inp);
 5996                 } else {
 5997                         SCTP_TCB_UNLOCK(stcb);
 5998                 }
 5999         }
 6000         if (stcb != NULL) {
 6001                 /* Already have or am bring up an association */
 6002                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 6003                 error = EALREADY;
 6004                 goto out_now;
 6005         }
 6006         vrf_id = inp->def_vrf_id;
 6007         /* We are GOOD to go */
 6008         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
 6009         if (stcb == NULL) {
 6010                 /* Gak! no memory */
 6011                 goto out_now;
 6012         }
 6013         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 6014                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 6015                 /* Set the connected flag so we can queue data */
 6016                 soisconnecting(so);
 6017         }
 6018         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 6019         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 6020 
 6021         /* initialize authentication parameters for the assoc */
 6022         sctp_initialize_auth_params(inp, stcb);
 6023 
 6024         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 6025         SCTP_TCB_UNLOCK(stcb);
 6026 out_now:
 6027         if (create_lock_on) {
 6028                 SCTP_ASOC_CREATE_UNLOCK(inp);
 6029         }
 6030         SCTP_INP_DECR_REF(inp);
 6031         return (error);
 6032 }
 6033 
 6034 #endif
 6035 
 6036 int
 6037 sctp_listen(struct socket *so, int backlog, struct thread *p)
 6038 {
 6039         /*
 6040          * Note this module depends on the protocol processing being called
 6041          * AFTER any socket level flags and backlog are applied to the
 6042          * socket. The traditional way that the socket flags are applied is
 6043          * AFTER protocol processing. We have made a change to the
 6044          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
 6045          * place if the socket API for SCTP is to work properly.
 6046          */
 6047 
 6048         int error = 0;
 6049         struct sctp_inpcb *inp;
 6050 
 6051         inp = (struct sctp_inpcb *)so->so_pcb;
 6052         if (inp == NULL) {
 6053                 /* I made the same as TCP since we are not setup? */
 6054                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6055                 return (ECONNRESET);
 6056         }
 6057         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
 6058                 /* See if we have a listener */
 6059                 struct sctp_inpcb *tinp;
 6060                 union sctp_sockstore store, *sp;
 6061 
 6062                 sp = &store;
 6063                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 6064                         /* not bound all */
 6065                         struct sctp_laddr *laddr;
 6066 
 6067                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 6068                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
 6069                                 switch (sp->sa.sa_family) {
 6070 #ifdef INET
 6071                                 case AF_INET:
 6072                                         sp->sin.sin_port = inp->sctp_lport;
 6073                                         break;
 6074 #endif
 6075 #ifdef INET6
 6076                                 case AF_INET6:
 6077                                         sp->sin6.sin6_port = inp->sctp_lport;
 6078                                         break;
 6079 #endif
 6080                                 default:
 6081                                         break;
 6082                                 }
 6083                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 6084                                 if (tinp && (tinp != inp) &&
 6085                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 6086                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 6087                                     (tinp->sctp_socket->so_qlimit)) {
 6088                                         /*
 6089                                          * we have a listener already and
 6090                                          * its not this inp.
 6091                                          */
 6092                                         SCTP_INP_DECR_REF(tinp);
 6093                                         return (EADDRINUSE);
 6094                                 } else if (tinp) {
 6095                                         SCTP_INP_DECR_REF(tinp);
 6096                                 }
 6097                         }
 6098                 } else {
 6099                         /* Setup a local addr bound all */
 6100                         memset(&store, 0, sizeof(store));
 6101                         switch (sp->sa.sa_family) {
 6102 #ifdef INET
 6103                         case AF_INET:
 6104                                 store.sin.sin_port = inp->sctp_lport;
 6105                                 break;
 6106 #endif
 6107 #ifdef INET6
 6108                         case AF_INET6:
 6109                                 sp->sin6.sin6_port = inp->sctp_lport;
 6110                                 break;
 6111 #endif
 6112                         default:
 6113                                 break;
 6114                         }
 6115 #ifdef INET6
 6116                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 6117                                 store.sa.sa_family = AF_INET6;
 6118                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
 6119                         }
 6120 #endif
 6121 #ifdef INET
 6122                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 6123                                 store.sa.sa_family = AF_INET;
 6124                                 store.sa.sa_len = sizeof(struct sockaddr_in);
 6125                         }
 6126 #endif
 6127                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 6128                         if (tinp && (tinp != inp) &&
 6129                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 6130                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 6131                             (tinp->sctp_socket->so_qlimit)) {
 6132                                 /*
 6133                                  * we have a listener already and its not
 6134                                  * this inp.
 6135                                  */
 6136                                 SCTP_INP_DECR_REF(tinp);
 6137                                 return (EADDRINUSE);
 6138                         } else if (tinp) {
 6139                                 SCTP_INP_DECR_REF(inp);
 6140                         }
 6141                 }
 6142         }
 6143         SCTP_INP_RLOCK(inp);
 6144 #ifdef SCTP_LOCK_LOGGING
 6145         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
 6146                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
 6147         }
 6148 #endif
 6149         SOCK_LOCK(so);
 6150         error = solisten_proto_check(so);
 6151         if (error) {
 6152                 SOCK_UNLOCK(so);
 6153                 SCTP_INP_RUNLOCK(inp);
 6154                 return (error);
 6155         }
 6156         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
 6157             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 6158                 /*
 6159                  * The unlucky case - We are in the tcp pool with this guy.
 6160                  * - Someone else is in the main inp slot. - We must move
 6161                  * this guy (the listener) to the main slot - We must then
 6162                  * move the guy that was listener to the TCP Pool.
 6163                  */
 6164                 if (sctp_swap_inpcb_for_listen(inp)) {
 6165                         goto in_use;
 6166                 }
 6167         }
 6168         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 6169             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 6170                 /* We are already connected AND the TCP model */
 6171 in_use:
 6172                 SCTP_INP_RUNLOCK(inp);
 6173                 SOCK_UNLOCK(so);
 6174                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 6175                 return (EADDRINUSE);
 6176         }
 6177         SCTP_INP_RUNLOCK(inp);
 6178         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 6179                 /* We must do a bind. */
 6180                 SOCK_UNLOCK(so);
 6181                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 6182                         /* bind error, probably perm */
 6183                         return (error);
 6184                 }
 6185                 SOCK_LOCK(so);
 6186         }
 6187         /* It appears for 7.0 and on, we must always call this. */
 6188         solisten_proto(so, backlog);
 6189         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 6190                 /* remove the ACCEPTCONN flag for one-to-many sockets */
 6191                 so->so_options &= ~SO_ACCEPTCONN;
 6192         }
 6193         if (backlog == 0) {
 6194                 /* turning off listen */
 6195                 so->so_options &= ~SO_ACCEPTCONN;
 6196         }
 6197         SOCK_UNLOCK(so);
 6198         return (error);
 6199 }
 6200 
 6201 static int sctp_defered_wakeup_cnt = 0;
 6202 
 6203 int
 6204 sctp_accept(struct socket *so, struct sockaddr **addr)
 6205 {
 6206         struct sctp_tcb *stcb;
 6207         struct sctp_inpcb *inp;
 6208         union sctp_sockstore store;
 6209 
 6210 #ifdef INET6
 6211         int error;
 6212 
 6213 #endif
 6214         inp = (struct sctp_inpcb *)so->so_pcb;
 6215 
 6216         if (inp == NULL) {
 6217                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6218                 return (ECONNRESET);
 6219         }
 6220         SCTP_INP_RLOCK(inp);
 6221         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 6222                 SCTP_INP_RUNLOCK(inp);
 6223                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 6224                 return (EOPNOTSUPP);
 6225         }
 6226         if (so->so_state & SS_ISDISCONNECTED) {
 6227                 SCTP_INP_RUNLOCK(inp);
 6228                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
 6229                 return (ECONNABORTED);
 6230         }
 6231         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6232         if (stcb == NULL) {
 6233                 SCTP_INP_RUNLOCK(inp);
 6234                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6235                 return (ECONNRESET);
 6236         }
 6237         SCTP_TCB_LOCK(stcb);
 6238         SCTP_INP_RUNLOCK(inp);
 6239         store = stcb->asoc.primary_destination->ro._l_addr;
 6240         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
 6241         SCTP_TCB_UNLOCK(stcb);
 6242         switch (store.sa.sa_family) {
 6243 #ifdef INET
 6244         case AF_INET:
 6245                 {
 6246                         struct sockaddr_in *sin;
 6247 
 6248                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6249                         if (sin == NULL)
 6250                                 return (ENOMEM);
 6251                         sin->sin_family = AF_INET;
 6252                         sin->sin_len = sizeof(*sin);
 6253                         sin->sin_port = store.sin.sin_port;
 6254                         sin->sin_addr = store.sin.sin_addr;
 6255                         *addr = (struct sockaddr *)sin;
 6256                         break;
 6257                 }
 6258 #endif
 6259 #ifdef INET6
 6260         case AF_INET6:
 6261                 {
 6262                         struct sockaddr_in6 *sin6;
 6263 
 6264                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 6265                         if (sin6 == NULL)
 6266                                 return (ENOMEM);
 6267                         sin6->sin6_family = AF_INET6;
 6268                         sin6->sin6_len = sizeof(*sin6);
 6269                         sin6->sin6_port = store.sin6.sin6_port;
 6270                         sin6->sin6_addr = store.sin6.sin6_addr;
 6271                         if ((error = sa6_recoverscope(sin6)) != 0) {
 6272                                 SCTP_FREE_SONAME(sin6);
 6273                                 return (error);
 6274                         }
 6275                         *addr = (struct sockaddr *)sin6;
 6276                         break;
 6277                 }
 6278 #endif
 6279         default:
 6280                 /* TSNH */
 6281                 break;
 6282         }
 6283         /* Wake any delayed sleep action */
 6284         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 6285                 SCTP_INP_WLOCK(inp);
 6286                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 6287                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 6288                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 6289                         SCTP_INP_WUNLOCK(inp);
 6290                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
 6291                         if (sowriteable(inp->sctp_socket)) {
 6292                                 sowwakeup_locked(inp->sctp_socket);
 6293                         } else {
 6294                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
 6295                         }
 6296                         SCTP_INP_WLOCK(inp);
 6297                 }
 6298                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 6299                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 6300                         SCTP_INP_WUNLOCK(inp);
 6301                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
 6302                         if (soreadable(inp->sctp_socket)) {
 6303                                 sctp_defered_wakeup_cnt++;
 6304                                 sorwakeup_locked(inp->sctp_socket);
 6305                         } else {
 6306                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
 6307                         }
 6308                         SCTP_INP_WLOCK(inp);
 6309                 }
 6310                 SCTP_INP_WUNLOCK(inp);
 6311         }
 6312         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 6313                 SCTP_TCB_LOCK(stcb);
 6314                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
 6315         }
 6316         return (0);
 6317 }
 6318 
 6319 #ifdef INET
 6320 int
 6321 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 6322 {
 6323         struct sockaddr_in *sin;
 6324         uint32_t vrf_id;
 6325         struct sctp_inpcb *inp;
 6326         struct sctp_ifa *sctp_ifa;
 6327 
 6328         /*
 6329          * Do the malloc first in case it blocks.
 6330          */
 6331         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6332         if (sin == NULL)
 6333                 return (ENOMEM);
 6334         sin->sin_family = AF_INET;
 6335         sin->sin_len = sizeof(*sin);
 6336         inp = (struct sctp_inpcb *)so->so_pcb;
 6337         if (!inp) {
 6338                 SCTP_FREE_SONAME(sin);
 6339                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6340                 return (ECONNRESET);
 6341         }
 6342         SCTP_INP_RLOCK(inp);
 6343         sin->sin_port = inp->sctp_lport;
 6344         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 6345                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 6346                         struct sctp_tcb *stcb;
 6347                         struct sockaddr_in *sin_a;
 6348                         struct sctp_nets *net;
 6349                         int fnd;
 6350 
 6351                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6352                         if (stcb == NULL) {
 6353                                 goto notConn;
 6354                         }
 6355                         fnd = 0;
 6356                         sin_a = NULL;
 6357                         SCTP_TCB_LOCK(stcb);
 6358                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6359                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 6360                                 if (sin_a == NULL)
 6361                                         /* this will make coverity happy */
 6362                                         continue;
 6363 
 6364                                 if (sin_a->sin_family == AF_INET) {
 6365                                         fnd = 1;
 6366                                         break;
 6367                                 }
 6368                         }
 6369                         if ((!fnd) || (sin_a == NULL)) {
 6370                                 /* punt */
 6371                                 SCTP_TCB_UNLOCK(stcb);
 6372                                 goto notConn;
 6373                         }
 6374                         vrf_id = inp->def_vrf_id;
 6375                         sctp_ifa = sctp_source_address_selection(inp,
 6376                             stcb,
 6377                             (sctp_route_t *) & net->ro,
 6378                             net, 0, vrf_id);
 6379                         if (sctp_ifa) {
 6380                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
 6381                                 sctp_free_ifa(sctp_ifa);
 6382                         }
 6383                         SCTP_TCB_UNLOCK(stcb);
 6384                 } else {
 6385                         /* For the bound all case you get back 0 */
 6386         notConn:
 6387                         sin->sin_addr.s_addr = 0;
 6388                 }
 6389 
 6390         } else {
 6391                 /* Take the first IPv4 address in the list */
 6392                 struct sctp_laddr *laddr;
 6393                 int fnd = 0;
 6394 
 6395                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 6396                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 6397                                 struct sockaddr_in *sin_a;
 6398 
 6399                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
 6400                                 sin->sin_addr = sin_a->sin_addr;
 6401                                 fnd = 1;
 6402                                 break;
 6403                         }
 6404                 }
 6405                 if (!fnd) {
 6406                         SCTP_FREE_SONAME(sin);
 6407                         SCTP_INP_RUNLOCK(inp);
 6408                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 6409                         return (ENOENT);
 6410                 }
 6411         }
 6412         SCTP_INP_RUNLOCK(inp);
 6413         (*addr) = (struct sockaddr *)sin;
 6414         return (0);
 6415 }
 6416 
 6417 int
 6418 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 6419 {
 6420         struct sockaddr_in *sin;
 6421         int fnd;
 6422         struct sockaddr_in *sin_a;
 6423         struct sctp_inpcb *inp;
 6424         struct sctp_tcb *stcb;
 6425         struct sctp_nets *net;
 6426 
 6427         /* Do the malloc first in case it blocks. */
 6428         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6429         if (sin == NULL)
 6430                 return (ENOMEM);
 6431         sin->sin_family = AF_INET;
 6432         sin->sin_len = sizeof(*sin);
 6433 
 6434         inp = (struct sctp_inpcb *)so->so_pcb;
 6435         if ((inp == NULL) ||
 6436             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
 6437                 /* UDP type and listeners will drop out here */
 6438                 SCTP_FREE_SONAME(sin);
 6439                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 6440                 return (ENOTCONN);
 6441         }
 6442         SCTP_INP_RLOCK(inp);
 6443         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6444         if (stcb) {
 6445                 SCTP_TCB_LOCK(stcb);
 6446         }
 6447         SCTP_INP_RUNLOCK(inp);
 6448         if (stcb == NULL) {
 6449                 SCTP_FREE_SONAME(sin);
 6450                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6451                 return (ECONNRESET);
 6452         }
 6453         fnd = 0;
 6454         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6455                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 6456                 if (sin_a->sin_family == AF_INET) {
 6457                         fnd = 1;
 6458                         sin->sin_port = stcb->rport;
 6459                         sin->sin_addr = sin_a->sin_addr;
 6460                         break;
 6461                 }
 6462         }
 6463         SCTP_TCB_UNLOCK(stcb);
 6464         if (!fnd) {
 6465                 /* No IPv4 address */
 6466                 SCTP_FREE_SONAME(sin);
 6467                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 6468                 return (ENOENT);
 6469         }
 6470         (*addr) = (struct sockaddr *)sin;
 6471         return (0);
 6472 }
 6473 
 6474 struct pr_usrreqs sctp_usrreqs = {
 6475         .pru_abort = sctp_abort,
 6476         .pru_accept = sctp_accept,
 6477         .pru_attach = sctp_attach,
 6478         .pru_bind = sctp_bind,
 6479         .pru_connect = sctp_connect,
 6480         .pru_control = in_control,
 6481         .pru_close = sctp_close,
 6482         .pru_detach = sctp_close,
 6483         .pru_sopoll = sopoll_generic,
 6484         .pru_flush = sctp_flush,
 6485         .pru_disconnect = sctp_disconnect,
 6486         .pru_listen = sctp_listen,
 6487         .pru_peeraddr = sctp_peeraddr,
 6488         .pru_send = sctp_sendm,
 6489         .pru_shutdown = sctp_shutdown,
 6490         .pru_sockaddr = sctp_ingetaddr,
 6491         .pru_sosend = sctp_sosend,
 6492         .pru_soreceive = sctp_soreceive
 6493 };
 6494 
 6495 #endif

Cache object: 0ee7b48794c4d1fc4c293951e67d4c2b


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.