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

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    1 /*-
    2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions are met:
    6  *
    7  * a) Redistributions of source code must retain the above copyright notice,
    8  *   this list of conditions and the following disclaimer.
    9  *
   10  * b) Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in
   12  *   the documentation and/or other materials provided with the distribution.
   13  *
   14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   15  *    contributors may be used to endorse or promote products derived
   16  *    from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   28  * THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 /* $KAME: sctp_uio.h,v 1.11 2005/03/06 16:04:18 itojun Exp $     */
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD$");
   34 
   35 #ifndef __sctp_uio_h__
   36 #define __sctp_uio_h__
   37 
   38 
   39 #if ! defined(_KERNEL)
   40 #include <stdint.h>
   41 #endif
   42 #include <sys/types.h>
   43 #include <sys/socket.h>
   44 #include <netinet/in.h>
   45 
   46 typedef uint32_t sctp_assoc_t;
   47 
   48 /* On/Off setup for subscription to events */
   49 struct sctp_event_subscribe {
   50         uint8_t sctp_data_io_event;
   51         uint8_t sctp_association_event;
   52         uint8_t sctp_address_event;
   53         uint8_t sctp_send_failure_event;
   54         uint8_t sctp_peer_error_event;
   55         uint8_t sctp_shutdown_event;
   56         uint8_t sctp_partial_delivery_event;
   57         uint8_t sctp_adaptation_layer_event;
   58         uint8_t sctp_authentication_event;
   59         uint8_t sctp_stream_reset_events;
   60 };
   61 
   62 /* ancillary data types */
   63 #define SCTP_INIT       0x0001
   64 #define SCTP_SNDRCV     0x0002
   65 #define SCTP_EXTRCV     0x0003
   66 /*
   67  * ancillary data structures
   68  */
   69 struct sctp_initmsg {
   70         uint32_t sinit_num_ostreams;
   71         uint32_t sinit_max_instreams;
   72         uint16_t sinit_max_attempts;
   73         uint16_t sinit_max_init_timeo;
   74 };
   75 
   76 /* We add 96 bytes to the size of sctp_sndrcvinfo.
   77  * This makes the current structure 128 bytes long
   78  * which is nicely 64 bit aligned but also has room
   79  * for us to add more and keep ABI compatability.
   80  * For example, already we have the sctp_extrcvinfo
   81  * when enabled which is 48 bytes.
   82  */
   83 
   84 /*
   85  * The assoc up needs a verfid
   86  * all sendrcvinfo's need a verfid for SENDING only.
   87  */
   88 
   89 
   90 #define SCTP_ALIGN_RESV_PAD 96
   91 #define SCTP_ALIGN_RESV_PAD_SHORT 80
   92 
   93 struct sctp_sndrcvinfo {
   94         uint16_t sinfo_stream;
   95         uint16_t sinfo_ssn;
   96         uint16_t sinfo_flags;
   97         uint16_t sinfo_pr_policy;
   98         uint32_t sinfo_ppid;
   99         uint32_t sinfo_context;
  100         uint32_t sinfo_timetolive;
  101         uint32_t sinfo_tsn;
  102         uint32_t sinfo_cumtsn;
  103         sctp_assoc_t sinfo_assoc_id;
  104         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
  105 };
  106 
  107 struct sctp_extrcvinfo {
  108         uint16_t sinfo_stream;
  109         uint16_t sinfo_ssn;
  110         uint16_t sinfo_flags;
  111         uint16_t sinfo_pr_policy;
  112         uint32_t sinfo_ppid;
  113         uint32_t sinfo_context;
  114         uint32_t sinfo_timetolive;
  115         uint32_t sinfo_tsn;
  116         uint32_t sinfo_cumtsn;
  117         sctp_assoc_t sinfo_assoc_id;
  118         uint16_t sreinfo_next_flags;
  119         uint16_t sreinfo_next_stream;
  120         uint32_t sreinfo_next_aid;
  121         uint32_t sreinfo_next_length;
  122         uint32_t sreinfo_next_ppid;
  123         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
  124 };
  125 
  126 #define SCTP_NO_NEXT_MSG           0x0000
  127 #define SCTP_NEXT_MSG_AVAIL        0x0001
  128 #define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
  129 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
  130 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
  131 
  132 struct sctp_snd_all_completes {
  133         uint16_t sall_stream;
  134         uint16_t sall_flags;
  135         uint32_t sall_ppid;
  136         uint32_t sall_context;
  137         uint32_t sall_num_sent;
  138         uint32_t sall_num_failed;
  139 };
  140 
  141 /* Flags that go into the sinfo->sinfo_flags field */
  142 #define SCTP_EOF          0x0100/* Start shutdown procedures */
  143 #define SCTP_ABORT        0x0200/* Send an ABORT to peer */
  144 #define SCTP_UNORDERED    0x0400/* Message is un-ordered */
  145 #define SCTP_ADDR_OVER    0x0800/* Override the primary-address */
  146 #define SCTP_SENDALL      0x1000/* Send this on all associations */
  147 #define SCTP_EOR          0x2000/* end of message signal */
  148 #define SCTP_PR_POLICY_VALID 0x4000     /* pr sctp policy valid */
  149 
  150 #define INVALID_SINFO_FLAG(x) (((x) & 0xffffff00 \
  151                                     & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
  152                                         SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR)) != 0)
  153 /* for the endpoint */
  154 
  155 /* The lower byte is an enumeration of PR-SCTP policies */
  156 #define SCTP_PR_SCTP_TTL  0x0001/* Time based PR-SCTP */
  157 #define SCTP_PR_SCTP_BUF  0x0002/* Buffer based PR-SCTP */
  158 #define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
  159 
  160 #define PR_SCTP_POLICY(x)         ((x) & 0xff)
  161 #define PR_SCTP_ENABLED(x)        (PR_SCTP_POLICY(x) != 0)
  162 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
  163 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
  164 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
  165 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)
  166 /* Stat's */
  167 struct sctp_pcbinfo {
  168         uint32_t ep_count;
  169         uint32_t asoc_count;
  170         uint32_t laddr_count;
  171         uint32_t raddr_count;
  172         uint32_t chk_count;
  173         uint32_t readq_count;
  174         uint32_t free_chunks;
  175         uint32_t stream_oque;
  176 };
  177 
  178 struct sctp_sockstat {
  179         sctp_assoc_t ss_assoc_id;
  180         uint32_t ss_total_sndbuf;
  181         uint32_t ss_total_recv_buf;
  182 };
  183 
  184 /*
  185  * notification event structures
  186  */
  187 
  188 /*
  189  * association change event
  190  */
  191 struct sctp_assoc_change {
  192         uint16_t sac_type;
  193         uint16_t sac_flags;
  194         uint32_t sac_length;
  195         uint16_t sac_state;
  196         uint16_t sac_error;
  197         uint16_t sac_outbound_streams;
  198         uint16_t sac_inbound_streams;
  199         sctp_assoc_t sac_assoc_id;
  200 };
  201 
  202 /* sac_state values */
  203 #define SCTP_COMM_UP            0x0001
  204 #define SCTP_COMM_LOST          0x0002
  205 #define SCTP_RESTART            0x0003
  206 #define SCTP_SHUTDOWN_COMP      0x0004
  207 #define SCTP_CANT_STR_ASSOC     0x0005
  208 
  209 
  210 /*
  211  * Address event
  212  */
  213 struct sctp_paddr_change {
  214         uint16_t spc_type;
  215         uint16_t spc_flags;
  216         uint32_t spc_length;
  217         struct sockaddr_storage spc_aaddr;
  218         uint32_t spc_state;
  219         uint32_t spc_error;
  220         sctp_assoc_t spc_assoc_id;
  221         uint8_t spc_padding[4];
  222 };
  223 
  224 /* paddr state values */
  225 #define SCTP_ADDR_AVAILABLE     0x0001
  226 #define SCTP_ADDR_UNREACHABLE   0x0002
  227 #define SCTP_ADDR_REMOVED       0x0003
  228 #define SCTP_ADDR_ADDED         0x0004
  229 #define SCTP_ADDR_MADE_PRIM     0x0005
  230 #define SCTP_ADDR_CONFIRMED     0x0006
  231 
  232 /*
  233  * CAUTION: these are user exposed SCTP addr reachability states must be
  234  * compatible with SCTP_ADDR states in sctp_constants.h
  235  */
  236 #ifdef SCTP_ACTIVE
  237 #undef SCTP_ACTIVE
  238 #endif
  239 #define SCTP_ACTIVE             0x0001  /* SCTP_ADDR_REACHABLE */
  240 
  241 #ifdef SCTP_INACTIVE
  242 #undef SCTP_INACTIVE
  243 #endif
  244 #define SCTP_INACTIVE           0x0002  /* SCTP_ADDR_NOT_REACHABLE */
  245 
  246 #ifdef SCTP_UNCONFIRMED
  247 #undef SCTP_UNCONFIRMED
  248 #endif
  249 #define SCTP_UNCONFIRMED        0x0200  /* SCTP_ADDR_UNCONFIRMED */
  250 
  251 #ifdef SCTP_NOHEARTBEAT
  252 #undef SCTP_NOHEARTBEAT
  253 #endif
  254 #define SCTP_NOHEARTBEAT        0x0040  /* SCTP_ADDR_NOHB */
  255 
  256 
  257 /* remote error events */
  258 struct sctp_remote_error {
  259         uint16_t sre_type;
  260         uint16_t sre_flags;
  261         uint32_t sre_length;
  262         uint16_t sre_error;
  263         sctp_assoc_t sre_assoc_id;
  264         uint8_t sre_data[4];
  265 };
  266 
  267 /* data send failure event */
  268 struct sctp_send_failed {
  269         uint16_t ssf_type;
  270         uint16_t ssf_flags;
  271         uint32_t ssf_length;
  272         uint32_t ssf_error;
  273         struct sctp_sndrcvinfo ssf_info;
  274         sctp_assoc_t ssf_assoc_id;
  275         uint8_t ssf_data[0];
  276 };
  277 
  278 /* flag that indicates state of data */
  279 #define SCTP_DATA_UNSENT        0x0001  /* inqueue never on wire */
  280 #define SCTP_DATA_SENT          0x0002  /* on wire at failure */
  281 
  282 /* shutdown event */
  283 struct sctp_shutdown_event {
  284         uint16_t sse_type;
  285         uint16_t sse_flags;
  286         uint32_t sse_length;
  287         sctp_assoc_t sse_assoc_id;
  288 };
  289 
  290 /* Adaptation layer indication stuff */
  291 struct sctp_adaptation_event {
  292         uint16_t sai_type;
  293         uint16_t sai_flags;
  294         uint32_t sai_length;
  295         uint32_t sai_adaptation_ind;
  296         sctp_assoc_t sai_assoc_id;
  297 };
  298 
  299 struct sctp_setadaptation {
  300         uint32_t ssb_adaptation_ind;
  301 };
  302 
  303 /* compatable old spelling */
  304 struct sctp_adaption_event {
  305         uint16_t sai_type;
  306         uint16_t sai_flags;
  307         uint32_t sai_length;
  308         uint32_t sai_adaption_ind;
  309         sctp_assoc_t sai_assoc_id;
  310 };
  311 
  312 struct sctp_setadaption {
  313         uint32_t ssb_adaption_ind;
  314 };
  315 
  316 
  317 /*
  318  * Partial Delivery API event
  319  */
  320 struct sctp_pdapi_event {
  321         uint16_t pdapi_type;
  322         uint16_t pdapi_flags;
  323         uint32_t pdapi_length;
  324         uint32_t pdapi_indication;
  325         uint16_t pdapi_stream;
  326         uint16_t pdapi_seq;
  327         sctp_assoc_t pdapi_assoc_id;
  328 };
  329 
  330 /* indication values */
  331 #define SCTP_PARTIAL_DELIVERY_ABORTED   0x0001
  332 
  333 
  334 /*
  335  * authentication key event
  336  */
  337 struct sctp_authkey_event {
  338         uint16_t auth_type;
  339         uint16_t auth_flags;
  340         uint32_t auth_length;
  341         uint16_t auth_keynumber;
  342         uint16_t auth_altkeynumber;
  343         uint32_t auth_indication;
  344         sctp_assoc_t auth_assoc_id;
  345 };
  346 
  347 /* indication values */
  348 #define SCTP_AUTH_NEWKEY        0x0001
  349 
  350 
  351 /*
  352  * stream reset event
  353  */
  354 struct sctp_stream_reset_event {
  355         uint16_t strreset_type;
  356         uint16_t strreset_flags;
  357         uint32_t strreset_length;
  358         sctp_assoc_t strreset_assoc_id;
  359         uint16_t strreset_list[0];
  360 };
  361 
  362 /* flags in strreset_flags field */
  363 #define SCTP_STRRESET_INBOUND_STR  0x0001
  364 #define SCTP_STRRESET_OUTBOUND_STR 0x0002
  365 #define SCTP_STRRESET_ALL_STREAMS  0x0004
  366 #define SCTP_STRRESET_STREAM_LIST  0x0008
  367 #define SCTP_STRRESET_FAILED       0x0010
  368 
  369 
  370 /* SCTP notification event */
  371 struct sctp_tlv {
  372         uint16_t sn_type;
  373         uint16_t sn_flags;
  374         uint32_t sn_length;
  375 };
  376 
  377 union sctp_notification {
  378         struct sctp_tlv sn_header;
  379         struct sctp_assoc_change sn_assoc_change;
  380         struct sctp_paddr_change sn_paddr_change;
  381         struct sctp_remote_error sn_remote_error;
  382         struct sctp_send_failed sn_send_failed;
  383         struct sctp_shutdown_event sn_shutdown_event;
  384         struct sctp_adaptation_event sn_adaptation_event;
  385         /* compatability same as above */
  386         struct sctp_adaption_event sn_adaption_event;
  387         struct sctp_pdapi_event sn_pdapi_event;
  388         struct sctp_authkey_event sn_auth_event;
  389         struct sctp_stream_reset_event sn_strreset_event;
  390 };
  391 
  392 /* notification types */
  393 #define SCTP_ASSOC_CHANGE               0x0001
  394 #define SCTP_PEER_ADDR_CHANGE           0x0002
  395 #define SCTP_REMOTE_ERROR               0x0003
  396 #define SCTP_SEND_FAILED                0x0004
  397 #define SCTP_SHUTDOWN_EVENT             0x0005
  398 #define SCTP_ADAPTATION_INDICATION      0x0006
  399 /* same as above */
  400 #define SCTP_ADAPTION_INDICATION        0x0006
  401 #define SCTP_PARTIAL_DELIVERY_EVENT     0x0007
  402 #define SCTP_AUTHENTICATION_EVENT       0x0008
  403 #define SCTP_STREAM_RESET_EVENT         0x0009
  404 
  405 
  406 /*
  407  * socket option structs
  408  */
  409 
  410 struct sctp_paddrparams {
  411         struct sockaddr_storage spp_address;
  412         sctp_assoc_t spp_assoc_id;
  413         uint32_t spp_hbinterval;
  414         uint32_t spp_pathmtu;
  415         uint32_t spp_flags;
  416         uint32_t spp_ipv6_flowlabel;
  417         uint16_t spp_pathmaxrxt;
  418         uint8_t spp_ipv4_tos;
  419 };
  420 
  421 #define SPP_HB_ENABLE           0x00000001
  422 #define SPP_HB_DISABLE          0x00000002
  423 #define SPP_HB_DEMAND           0x00000004
  424 #define SPP_PMTUD_ENABLE        0x00000008
  425 #define SPP_PMTUD_DISABLE       0x00000010
  426 #define SPP_HB_TIME_IS_ZERO     0x00000080
  427 #define SPP_IPV6_FLOWLABEL      0x00000100
  428 #define SPP_IPV4_TOS            0x00000200
  429 
  430 struct sctp_paddrinfo {
  431         struct sockaddr_storage spinfo_address;
  432         sctp_assoc_t spinfo_assoc_id;
  433         int32_t spinfo_state;
  434         uint32_t spinfo_cwnd;
  435         uint32_t spinfo_srtt;
  436         uint32_t spinfo_rto;
  437         uint32_t spinfo_mtu;
  438 };
  439 
  440 struct sctp_rtoinfo {
  441         sctp_assoc_t srto_assoc_id;
  442         uint32_t srto_initial;
  443         uint32_t srto_max;
  444         uint32_t srto_min;
  445 };
  446 
  447 struct sctp_assocparams {
  448         sctp_assoc_t sasoc_assoc_id;
  449         uint32_t sasoc_peer_rwnd;
  450         uint32_t sasoc_local_rwnd;
  451         uint32_t sasoc_cookie_life;
  452         uint16_t sasoc_asocmaxrxt;
  453         uint16_t sasoc_number_peer_destinations;
  454 };
  455 
  456 struct sctp_setprim {
  457         struct sockaddr_storage ssp_addr;
  458         sctp_assoc_t ssp_assoc_id;
  459         uint8_t ssp_padding[4];
  460 };
  461 
  462 struct sctp_setpeerprim {
  463         struct sockaddr_storage sspp_addr;
  464         sctp_assoc_t sspp_assoc_id;
  465         uint8_t sspp_padding[4];
  466 };
  467 
  468 struct sctp_getaddresses {
  469         sctp_assoc_t sget_assoc_id;
  470         /* addr is filled in for N * sockaddr_storage */
  471         struct sockaddr addr[1];
  472 };
  473 
  474 struct sctp_setstrm_timeout {
  475         sctp_assoc_t ssto_assoc_id;
  476         uint32_t ssto_timeout;
  477         uint32_t ssto_streamid_start;
  478         uint32_t ssto_streamid_end;
  479 };
  480 
  481 struct sctp_status {
  482         sctp_assoc_t sstat_assoc_id;
  483         int32_t sstat_state;
  484         uint32_t sstat_rwnd;
  485         uint16_t sstat_unackdata;
  486         uint16_t sstat_penddata;
  487         uint16_t sstat_instrms;
  488         uint16_t sstat_outstrms;
  489         uint32_t sstat_fragmentation_point;
  490         struct sctp_paddrinfo sstat_primary;
  491 };
  492 
  493 /*
  494  * AUTHENTICATION support
  495  */
  496 /* SCTP_AUTH_CHUNK */
  497 struct sctp_authchunk {
  498         uint8_t sauth_chunk;
  499 };
  500 
  501 /* SCTP_AUTH_KEY */
  502 struct sctp_authkey {
  503         sctp_assoc_t sca_assoc_id;
  504         uint16_t sca_keynumber;
  505         uint8_t sca_key[0];
  506 };
  507 
  508 /* SCTP_HMAC_IDENT */
  509 struct sctp_hmacalgo {
  510         uint32_t shmac_number_of_idents;
  511         uint16_t shmac_idents[0];
  512 };
  513 
  514 /* AUTH hmac_id */
  515 #define SCTP_AUTH_HMAC_ID_RSVD          0x0000
  516 #define SCTP_AUTH_HMAC_ID_SHA1          0x0001  /* default, mandatory */
  517 #define SCTP_AUTH_HMAC_ID_MD5           0x0002  /* deprecated */
  518 #define SCTP_AUTH_HMAC_ID_SHA256        0x0003
  519 #define SCTP_AUTH_HMAC_ID_SHA224        0x0004
  520 #define SCTP_AUTH_HMAC_ID_SHA384        0x0005
  521 #define SCTP_AUTH_HMAC_ID_SHA512        0x0006
  522 
  523 
  524 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
  525 struct sctp_authkeyid {
  526         sctp_assoc_t scact_assoc_id;
  527         uint16_t scact_keynumber;
  528 };
  529 
  530 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
  531 struct sctp_authchunks {
  532         sctp_assoc_t gauth_assoc_id;
  533         uint8_t gauth_chunks[0];
  534 };
  535 
  536 struct sctp_assoc_value {
  537         sctp_assoc_t assoc_id;
  538         uint32_t assoc_value;
  539 };
  540 
  541 struct sctp_assoc_ids {
  542         sctp_assoc_t gaids_assoc_id[0];
  543 };
  544 
  545 struct sctp_sack_info {
  546         sctp_assoc_t sack_assoc_id;
  547         uint32_t sack_delay;
  548         uint32_t sack_freq;
  549 };
  550 
  551 struct sctp_cwnd_args {
  552         struct sctp_nets *net;  /* network to *//* FIXME: LP64 issue */
  553         uint32_t cwnd_new_value;/* cwnd in k */
  554         uint32_t inflight;      /* flightsize in k */
  555         uint32_t pseudo_cumack;
  556         uint32_t cwnd_augment;  /* increment to it */
  557         uint8_t meets_pseudo_cumack;
  558         uint8_t need_new_pseudo_cumack;
  559         uint8_t cnt_in_send;
  560         uint8_t cnt_in_str;
  561 };
  562 
  563 struct sctp_blk_args {
  564         uint32_t onsb;          /* in 1k bytes */
  565         uint32_t sndlen;        /* len of send being attempted */
  566         uint32_t peer_rwnd;     /* rwnd of peer */
  567         uint16_t send_sent_qcnt;/* chnk cnt */
  568         uint16_t stream_qcnt;   /* chnk cnt */
  569         uint16_t chunks_on_oque;/* chunks out */
  570         uint16_t flight_size;   /* flight size in k */
  571 };
  572 
  573 /*
  574  * Max we can reset in one setting, note this is dictated not by the define
  575  * but the size of a mbuf cluster so don't change this define and think you
  576  * can specify more. You must do multiple resets if you want to reset more
  577  * than SCTP_MAX_EXPLICIT_STR_RESET.
  578  */
  579 #define SCTP_MAX_EXPLICT_STR_RESET   1000
  580 
  581 #define SCTP_RESET_LOCAL_RECV  0x0001
  582 #define SCTP_RESET_LOCAL_SEND  0x0002
  583 #define SCTP_RESET_BOTH        0x0003
  584 #define SCTP_RESET_TSN         0x0004
  585 
  586 struct sctp_stream_reset {
  587         sctp_assoc_t strrst_assoc_id;
  588         uint16_t strrst_flags;
  589         uint16_t strrst_num_streams;    /* 0 == ALL */
  590         uint16_t strrst_list[0];/* list if strrst_num_streams is not 0 */
  591 };
  592 
  593 
  594 struct sctp_get_nonce_values {
  595         sctp_assoc_t gn_assoc_id;
  596         uint32_t gn_peers_tag;
  597         uint32_t gn_local_tag;
  598 };
  599 
  600 /* Debugging logs */
  601 struct sctp_str_log {
  602         void *stcb;             /* FIXME: LP64 issue */
  603         uint32_t n_tsn;
  604         uint32_t e_tsn;
  605         uint16_t n_sseq;
  606         uint16_t e_sseq;
  607         uint16_t strm;
  608 };
  609 
  610 struct sctp_sb_log {
  611         void *stcb;             /* FIXME: LP64 issue */
  612         uint32_t so_sbcc;
  613         uint32_t stcb_sbcc;
  614         uint32_t incr;
  615 };
  616 
  617 struct sctp_fr_log {
  618         uint32_t largest_tsn;
  619         uint32_t largest_new_tsn;
  620         uint32_t tsn;
  621 };
  622 
  623 struct sctp_fr_map {
  624         uint32_t base;
  625         uint32_t cum;
  626         uint32_t high;
  627 };
  628 
  629 struct sctp_rwnd_log {
  630         uint32_t rwnd;
  631         uint32_t send_size;
  632         uint32_t overhead;
  633         uint32_t new_rwnd;
  634 };
  635 
  636 struct sctp_mbcnt_log {
  637         uint32_t total_queue_size;
  638         uint32_t size_change;
  639         uint32_t total_queue_mb_size;
  640         uint32_t mbcnt_change;
  641 };
  642 
  643 struct sctp_sack_log {
  644         uint32_t cumack;
  645         uint32_t oldcumack;
  646         uint32_t tsn;
  647         uint16_t numGaps;
  648         uint16_t numDups;
  649 };
  650 
  651 struct sctp_lock_log {
  652         void *sock;             /* FIXME: LP64 issue */
  653         void *inp;              /* FIXME: LP64 issue */
  654         uint8_t tcb_lock;
  655         uint8_t inp_lock;
  656         uint8_t info_lock;
  657         uint8_t sock_lock;
  658         uint8_t sockrcvbuf_lock;
  659         uint8_t socksndbuf_lock;
  660         uint8_t create_lock;
  661         uint8_t resv;
  662 };
  663 
  664 struct sctp_rto_log {
  665         void *net;              /* FIXME: LP64 issue */
  666         uint32_t rtt;
  667 };
  668 
  669 struct sctp_nagle_log {
  670         void *stcb;             /* FIXME: LP64 issue */
  671         uint32_t total_flight;
  672         uint32_t total_in_queue;
  673         uint16_t count_in_queue;
  674         uint16_t count_in_flight;
  675 };
  676 
  677 struct sctp_sbwake_log {
  678         void *stcb;             /* FIXME: LP64 issue */
  679         uint16_t send_q;
  680         uint16_t sent_q;
  681         uint16_t flight;
  682         uint16_t wake_cnt;
  683         uint8_t stream_qcnt;    /* chnk cnt */
  684         uint8_t chunks_on_oque; /* chunks out */
  685         uint8_t sbflags;
  686         uint8_t sctpflags;
  687 };
  688 
  689 struct sctp_misc_info {
  690         uint32_t log1;
  691         uint32_t log2;
  692         uint32_t log3;
  693         uint32_t log4;
  694 };
  695 
  696 struct sctp_log_closing {
  697         void *inp;              /* FIXME: LP64 issue */
  698         void *stcb;             /* FIXME: LP64 issue */
  699         uint32_t sctp_flags;
  700         uint16_t state;
  701         int16_t loc;
  702 };
  703 
  704 struct sctp_mbuf_log {
  705         struct mbuf *mp;        /* FIXME: LP64 issue */
  706         caddr_t ext;
  707         caddr_t data;
  708         uint16_t size;
  709         uint8_t refcnt;
  710         uint8_t mbuf_flags;
  711 };
  712 
  713 struct sctp_cwnd_log {
  714         uint64_t time_event;
  715         uint8_t from;
  716         uint8_t event_type;
  717         uint8_t resv[2];
  718         union {
  719                 struct sctp_log_closing close;
  720                 struct sctp_blk_args blk;
  721                 struct sctp_cwnd_args cwnd;
  722                 struct sctp_str_log strlog;
  723                 struct sctp_fr_log fr;
  724                 struct sctp_fr_map map;
  725                 struct sctp_rwnd_log rwnd;
  726                 struct sctp_mbcnt_log mbcnt;
  727                 struct sctp_sack_log sack;
  728                 struct sctp_lock_log lock;
  729                 struct sctp_rto_log rto;
  730                 struct sctp_sb_log sb;
  731                 struct sctp_nagle_log nagle;
  732                 struct sctp_sbwake_log wake;
  733                 struct sctp_mbuf_log mb;
  734                 struct sctp_misc_info misc;
  735         }     x;
  736 };
  737 
  738 struct sctp_cwnd_log_req {
  739         int32_t num_in_log;     /* Number in log */
  740         int32_t num_ret;        /* Number returned */
  741         int32_t start_at;       /* start at this one */
  742         int32_t end_at;         /* end at this one */
  743         struct sctp_cwnd_log log[0];
  744 };
  745 
  746 struct sctp_timeval {
  747         uint32_t tv_sec;
  748         uint32_t tv_usec;
  749 };
  750 
  751 struct sctpstat {
  752         /* MIB according to RFC 3873 */
  753         uint32_t sctps_currestab;       /* sctpStats  1   (Gauge32) */
  754         uint32_t sctps_activeestab;     /* sctpStats  2 (Counter32) */
  755         uint32_t sctps_restartestab;
  756         uint32_t sctps_collisionestab;
  757         uint32_t sctps_passiveestab;    /* sctpStats  3 (Counter32) */
  758         uint32_t sctps_aborted; /* sctpStats  4 (Counter32) */
  759         uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
  760         uint32_t sctps_outoftheblue;    /* sctpStats  6 (Counter32) */
  761         uint32_t sctps_checksumerrors;  /* sctpStats  7 (Counter32) */
  762         uint32_t sctps_outcontrolchunks;        /* sctpStats  8 (Counter64) */
  763         uint32_t sctps_outorderchunks;  /* sctpStats  9 (Counter64) */
  764         uint32_t sctps_outunorderchunks;        /* sctpStats 10 (Counter64) */
  765         uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */
  766         uint32_t sctps_inorderchunks;   /* sctpStats 12 (Counter64) */
  767         uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */
  768         uint32_t sctps_fragusrmsgs;     /* sctpStats 14 (Counter64) */
  769         uint32_t sctps_reasmusrmsgs;    /* sctpStats 15 (Counter64) */
  770         uint32_t sctps_outpackets;      /* sctpStats 16 (Counter64) */
  771         uint32_t sctps_inpackets;       /* sctpStats 17 (Counter64) */
  772 
  773         /* input statistics: */
  774         uint32_t sctps_recvpackets;     /* total input packets        */
  775         uint32_t sctps_recvdatagrams;   /* total input datagrams      */
  776         uint32_t sctps_recvpktwithdata; /* total packets that had data */
  777         uint32_t sctps_recvsacks;       /* total input SACK chunks    */
  778         uint32_t sctps_recvdata;/* total input DATA chunks    */
  779         uint32_t sctps_recvdupdata;     /* total input duplicate DATA chunks */
  780         uint32_t sctps_recvheartbeat;   /* total input HB chunks      */
  781         uint32_t sctps_recvheartbeatack;        /* total input HB-ACK chunks  */
  782         uint32_t sctps_recvecne;/* total input ECNE chunks    */
  783         uint32_t sctps_recvauth;/* total input AUTH chunks    */
  784         uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */
  785         uint32_t sctps_recvivalhmacid;  /* total number of invalid HMAC ids
  786                                          * received */
  787         uint32_t sctps_recvivalkeyid;   /* total number of invalid secret ids
  788                                          * received */
  789         uint32_t sctps_recvauthfailed;  /* total number of auth failed */
  790         uint32_t sctps_recvexpress;     /* total fast path receives all one
  791                                          * chunk */
  792         uint32_t sctps_recvexpressm;    /* total fast path multi-part data */
  793         /* output statistics: */
  794         uint32_t sctps_sendpackets;     /* total output packets       */
  795         uint32_t sctps_sendsacks;       /* total output SACKs         */
  796         uint32_t sctps_senddata;/* total output DATA chunks   */
  797         uint32_t sctps_sendretransdata; /* total output retransmitted DATA
  798                                          * chunks */
  799         uint32_t sctps_sendfastretrans; /* total output fast retransmitted
  800                                          * DATA chunks */
  801         uint32_t sctps_sendmultfastretrans;     /* total FR's that happened
  802                                                  * more than once to same
  803                                                  * chunk (u-del multi-fr
  804                                                  * algo). */
  805         uint32_t sctps_sendheartbeat;   /* total output HB chunks     */
  806         uint32_t sctps_sendecne;/* total output ECNE chunks    */
  807         uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
  808         uint32_t sctps_senderrors;      /* ip_output error counter */
  809         /* PCKDROPREP statistics: */
  810         uint32_t sctps_pdrpfmbox;       /* Packet drop from middle box */
  811         uint32_t sctps_pdrpfehos;       /* P-drop from end host */
  812         uint32_t sctps_pdrpmbda;/* P-drops with data */
  813         uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
  814         uint32_t sctps_pdrpbwrpt;       /* P-drop, non-endhost, bandwidth rep
  815                                          * only */
  816         uint32_t sctps_pdrpcrupt;       /* P-drop, not enough for chunk header */
  817         uint32_t sctps_pdrpnedat;       /* P-drop, not enough data to confirm */
  818         uint32_t sctps_pdrppdbrk;       /* P-drop, where process_chunk_drop
  819                                          * said break */
  820         uint32_t sctps_pdrptsnnf;       /* P-drop, could not find TSN */
  821         uint32_t sctps_pdrpdnfnd;       /* P-drop, attempt reverse TSN lookup */
  822         uint32_t sctps_pdrpdiwnp;       /* P-drop, e-host confirms zero-rwnd */
  823         uint32_t sctps_pdrpdizrw;       /* P-drop, midbox confirms no space */
  824         uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
  825         uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
  826         /* timeouts */
  827         uint32_t sctps_timoiterator;    /* Number of iterator timers that
  828                                          * fired */
  829         uint32_t sctps_timodata;/* Number of T3 data time outs */
  830         uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers
  831                                          * that fired */
  832         uint32_t sctps_timoinit;/* Number of INIT timers that fired */
  833         uint32_t sctps_timosack;/* Number of sack timers that fired */
  834         uint32_t sctps_timoshutdown;    /* Number of shutdown timers that
  835                                          * fired */
  836         uint32_t sctps_timoheartbeat;   /* Number of heartbeat timers that
  837                                          * fired */
  838         uint32_t sctps_timocookie;      /* Number of times a cookie timeout
  839                                          * fired */
  840         uint32_t sctps_timosecret;      /* Number of times an endpoint changed
  841                                          * its cookie secret */
  842         uint32_t sctps_timopathmtu;     /* Number of PMTU timers that fired */
  843         uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that
  844                                          * fired */
  845         uint32_t sctps_timoshutdownguard;       /* Number of shutdown guard
  846                                                  * timers that fired */
  847         uint32_t sctps_timostrmrst;     /* Number of stream reset timers that
  848                                          * fired */
  849         uint32_t sctps_timoearlyfr;     /* Number of early FR timers that
  850                                          * fired */
  851         uint32_t sctps_timoasconf;      /* Number of times an asconf timer
  852                                          * fired */
  853         uint32_t sctps_timodelprim;     /* Number of times a prim_deleted
  854                                          * timer fired */
  855         uint32_t sctps_timoautoclose;   /* Number of times auto close timer
  856                                          * fired */
  857         uint32_t sctps_timoassockill;   /* Number of asoc free timers expired */
  858         uint32_t sctps_timoinpkill;     /* Number of inp free timers expired */
  859         /* Early fast retransmission counters */
  860         uint32_t sctps_earlyfrstart;
  861         uint32_t sctps_earlyfrstop;
  862         uint32_t sctps_earlyfrmrkretrans;
  863         uint32_t sctps_earlyfrstpout;
  864         uint32_t sctps_earlyfrstpidsck1;
  865         uint32_t sctps_earlyfrstpidsck2;
  866         uint32_t sctps_earlyfrstpidsck3;
  867         uint32_t sctps_earlyfrstpidsck4;
  868         uint32_t sctps_earlyfrstrid;
  869         uint32_t sctps_earlyfrstrout;
  870         uint32_t sctps_earlyfrstrtmr;
  871         /* otheres */
  872         uint32_t sctps_hdrops;  /* packet shorter than header */
  873         uint32_t sctps_badsum;  /* checksum error             */
  874         uint32_t sctps_noport;  /* no endpoint for port       */
  875         uint32_t sctps_badvtag; /* bad v-tag                  */
  876         uint32_t sctps_badsid;  /* bad SID                    */
  877         uint32_t sctps_nomem;   /* no memory                  */
  878         uint32_t sctps_fastretransinrtt;        /* number of multiple FR in a
  879                                                  * RTT window */
  880         uint32_t sctps_markedretrans;
  881         uint32_t sctps_naglesent;       /* nagle allowed sending      */
  882         uint32_t sctps_naglequeued;     /* nagle does't allow sending */
  883         uint32_t sctps_maxburstqueued;  /* max burst dosn't allow sending */
  884         uint32_t sctps_ifnomemqueued;   /* look ahead tells us no memory in
  885                                          * interface ring buffer OR we had a
  886                                          * send error and are queuing one
  887                                          * send. */
  888         uint32_t sctps_windowprobed;    /* total number of window probes sent */
  889         uint32_t sctps_lowlevelerr;     /* total times an output error causes
  890                                          * us to clamp down on next user send. */
  891         uint32_t sctps_lowlevelerrusr;  /* total times sctp_senderrors were
  892                                          * caused from a user send from a user
  893                                          * invoked send not a sack response */
  894         uint32_t sctps_datadropchklmt;  /* Number of in data drops due to
  895                                          * chunk limit reached */
  896         uint32_t sctps_datadroprwnd;    /* Number of in data drops due to rwnd
  897                                          * limit reached */
  898         uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the
  899                                          * cwnd */
  900         uint32_t sctps_vtagexpress;     /* Used express lookup via vtag */
  901         uint32_t sctps_vtagbogus;       /* Collision in express lookup. */
  902         uint32_t sctps_primary_randry;  /* Number of times the sender ran dry
  903                                          * of user data on primary */
  904         uint32_t sctps_cmt_randry;      /* Same for above */
  905         uint32_t sctps_slowpath_sack;   /* Sacks the slow way */
  906         uint32_t sctps_wu_sacks_sent;   /* Window Update only sacks sent */
  907         uint32_t sctps_sends_with_flags;        /* number of sends with
  908                                                  * sinfo_flags !=0 */
  909         uint32_t sctps_sends_with_unord /* number of undordered sends */ ;
  910         uint32_t sctps_sends_with_eof;  /* number of sends with EOF flag set */
  911         uint32_t sctps_sends_with_abort;        /* number of sends with ABORT
  912                                                  * flag set */
  913         uint32_t sctps_protocol_drain_calls;    /* number of times protocol
  914                                                  * drain called */
  915         uint32_t sctps_protocol_drains_done;    /* number of times we did a
  916                                                  * protocol drain */
  917         uint32_t sctps_read_peeks;      /* Number of times recv was called
  918                                          * with peek */
  919         uint32_t sctps_cached_chk;      /* Number of cached chunks used */
  920         uint32_t sctps_cached_strmoq;   /* Number of cached stream oq's used */
  921         uint32_t sctps_left_abandon;    /* Number of unread message abandonded
  922                                          * by close */
  923         uint32_t sctps_send_burst_avoid;        /* Send burst avoidance,
  924                                                  * already max burst inflight
  925                                                  * to net */
  926         uint32_t sctps_send_cwnd_avoid; /* Send cwnd full  avoidance, already
  927                                          * max burst inflight to net */
  928         uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via
  929                                          * fwd-tsn's */
  930 
  931         struct sctp_timeval sctps_discontinuitytime;    /* sctpStats 18
  932                                                          * (TimeStamp) */
  933 };
  934 
  935 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
  936 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
  937 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
  938 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
  939 
  940 /* The following macros are for handling MIB values, */
  941 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
  942 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
  943 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
  944 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
  945 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
  946 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
  947 
  948 union sctp_sockstore {
  949 #if defined(INET) || !defined(_KERNEL)
  950         struct sockaddr_in sin;
  951 #endif
  952 #if defined(INET6) || !defined(_KERNEL)
  953         struct sockaddr_in6 sin6;
  954 #endif
  955         struct sockaddr sa;
  956 };
  957 
  958 struct xsctp_inpcb {
  959         uint32_t last;
  960         uint32_t flags;
  961         uint32_t features;
  962         uint32_t total_sends;
  963         uint32_t total_recvs;
  964         uint32_t total_nospaces;
  965         uint32_t fragmentation_point;
  966         uint16_t local_port;
  967         uint16_t qlen;
  968         uint16_t maxqlen;
  969 };
  970 
  971 struct xsctp_tcb {
  972         union sctp_sockstore primary_addr;      /* sctpAssocEntry 5/6 */
  973         uint32_t last;
  974         uint32_t heartbeat_interval;    /* sctpAssocEntry 7   */
  975         uint32_t state;         /* sctpAssocEntry 8   */
  976         uint32_t in_streams;    /* sctpAssocEntry 9   */
  977         uint32_t out_streams;   /* sctpAssocEntry 10  */
  978         uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
  979         uint32_t primary_process;       /* sctpAssocEntry 12  */
  980         uint32_t T1_expireries; /* sctpAssocEntry 13  */
  981         uint32_t T2_expireries; /* sctpAssocEntry 14  */
  982         uint32_t retransmitted_tsns;    /* sctpAssocEntry 15  */
  983         uint32_t total_sends;
  984         uint32_t total_recvs;
  985         uint32_t local_tag;
  986         uint32_t remote_tag;
  987         uint32_t initial_tsn;
  988         uint32_t highest_tsn;
  989         uint32_t cumulative_tsn;
  990         uint32_t cumulative_tsn_ack;
  991         uint32_t mtu;
  992         uint32_t refcnt;
  993         uint16_t local_port;    /* sctpAssocEntry 3   */
  994         uint16_t remote_port;   /* sctpAssocEntry 4   */
  995         struct sctp_timeval start_time; /* sctpAssocEntry 16  */
  996         struct sctp_timeval discontinuity_time; /* sctpAssocEntry 17  */
  997 };
  998 
  999 struct xsctp_laddr {
 1000         union sctp_sockstore address;   /* sctpAssocLocalAddrEntry 1/2 */
 1001         uint32_t last;
 1002         struct sctp_timeval start_time; /* sctpAssocLocalAddrEntry 3   */
 1003 };
 1004 
 1005 struct xsctp_raddr {
 1006         union sctp_sockstore address;   /* sctpAssocLocalRemEntry 1/2 */
 1007         uint32_t last;
 1008         uint32_t rto;           /* sctpAssocLocalRemEntry 5   */
 1009         uint32_t max_path_rtx;  /* sctpAssocLocalRemEntry 6   */
 1010         uint32_t rtx;           /* sctpAssocLocalRemEntry 7   */
 1011         uint32_t error_counter; /* */
 1012         uint32_t cwnd;          /* */
 1013         uint32_t flight_size;   /* */
 1014         uint32_t mtu;           /* */
 1015         uint8_t active;         /* sctpAssocLocalRemEntry 3   */
 1016         uint8_t confirmed;      /* */
 1017         uint8_t heartbeat_enabled;      /* sctpAssocLocalRemEntry 4   */
 1018         struct sctp_timeval start_time; /* sctpAssocLocalRemEntry 8   */
 1019 };
 1020 
 1021 #define SCTP_MAX_LOGGING_SIZE 30000
 1022 #define SCTP_TRACE_PARAMS 6     /* This number MUST be even   */
 1023 
 1024 struct sctp_log_entry {
 1025         uint64_t timestamp;
 1026         uint32_t subsys;
 1027         uint32_t padding;
 1028         uint32_t params[SCTP_TRACE_PARAMS];
 1029 };
 1030 
 1031 struct sctp_log {
 1032         struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
 1033         uint32_t index;
 1034         uint32_t padding;
 1035 };
 1036 
 1037 /*
 1038  * Kernel defined for sctp_send
 1039  */
 1040 #if defined(_KERNEL) || defined(__Userspace__)
 1041 int
 1042 sctp_lower_sosend(struct socket *so,
 1043     struct sockaddr *addr,
 1044     struct uio *uio,
 1045     struct mbuf *i_pak,
 1046     struct mbuf *control,
 1047     int flags,
 1048     int use_rcvinfo,
 1049     struct sctp_sndrcvinfo *srcv
 1050     ,struct thread *p
 1051 );
 1052 
 1053 int
 1054 sctp_sorecvmsg(struct socket *so,
 1055     struct uio *uio,
 1056     struct mbuf **mp,
 1057     struct sockaddr *from,
 1058     int fromlen,
 1059     int *msg_flags,
 1060     struct sctp_sndrcvinfo *sinfo,
 1061     int filling_sinfo);
 1062 
 1063 #endif
 1064 
 1065 /*
 1066  * API system calls
 1067  */
 1068 #if !(defined(_KERNEL)) && !(defined(__Userspace__))
 1069 
 1070 __BEGIN_DECLS
 1071 int sctp_peeloff __P((int, sctp_assoc_t));
 1072 int sctp_bindx __P((int, struct sockaddr *, int, int));
 1073 int sctp_connectx __P((int, const struct sockaddr *, int, sctp_assoc_t *));
 1074 int sctp_getaddrlen __P((sa_family_t));
 1075 int sctp_getpaddrs __P((int, sctp_assoc_t, struct sockaddr **));
 1076 void sctp_freepaddrs __P((struct sockaddr *));
 1077 int sctp_getladdrs __P((int, sctp_assoc_t, struct sockaddr **));
 1078 void sctp_freeladdrs __P((struct sockaddr *));
 1079 int sctp_opt_info __P((int, sctp_assoc_t, int, void *, socklen_t *));
 1080 
 1081 ssize_t sctp_sendmsg 
 1082 __P((int, const void *, size_t,
 1083     const struct sockaddr *,
 1084     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
 1085 
 1086         ssize_t sctp_send __P((int sd, const void *msg, size_t len,
 1087               const struct sctp_sndrcvinfo *sinfo, int flags));
 1088 
 1089         ssize_t sctp_sendx __P((int sd, const void *msg, size_t len,
 1090                struct sockaddr *addrs, int addrcnt,
 1091                struct sctp_sndrcvinfo *sinfo, int flags));
 1092 
 1093         ssize_t sctp_sendmsgx __P((int sd, const void *, size_t,
 1094                   struct sockaddr *, int,
 1095                   uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
 1096 
 1097         sctp_assoc_t sctp_getassocid __P((int sd, struct sockaddr *sa));
 1098 
 1099         ssize_t sctp_recvmsg __P((int, void *, size_t, struct sockaddr *,
 1100                  socklen_t *, struct sctp_sndrcvinfo *, int *));
 1101 
 1102 __END_DECLS
 1103 
 1104 #endif                          /* !_KERNEL */
 1105 #endif                          /* !__sctp_uio_h__ */

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