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: releng/8.2/sys/netinet/sctp_uio.h 215596 2010-11-20 21:44:18Z tuexen $");
   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 /* Compatibility to previous define's */
   49 #define sctp_stream_reset_events sctp_stream_reset_event
   50 
   51 /* On/Off setup for subscription to events */
   52 struct sctp_event_subscribe {
   53         uint8_t sctp_data_io_event;
   54         uint8_t sctp_association_event;
   55         uint8_t sctp_address_event;
   56         uint8_t sctp_send_failure_event;
   57         uint8_t sctp_peer_error_event;
   58         uint8_t sctp_shutdown_event;
   59         uint8_t sctp_partial_delivery_event;
   60         uint8_t sctp_adaptation_layer_event;
   61         uint8_t sctp_authentication_event;
   62         uint8_t sctp_sender_dry_event;
   63         uint8_t sctp_stream_reset_event;
   64 };
   65 
   66 /* ancillary data types */
   67 #define SCTP_INIT       0x0001
   68 #define SCTP_SNDRCV     0x0002
   69 #define SCTP_EXTRCV     0x0003
   70 /*
   71  * ancillary data structures
   72  */
   73 struct sctp_initmsg {
   74         uint16_t sinit_num_ostreams;
   75         uint16_t sinit_max_instreams;
   76         uint16_t sinit_max_attempts;
   77         uint16_t sinit_max_init_timeo;
   78 };
   79 
   80 /* We add 96 bytes to the size of sctp_sndrcvinfo.
   81  * This makes the current structure 128 bytes long
   82  * which is nicely 64 bit aligned but also has room
   83  * for us to add more and keep ABI compatibility.
   84  * For example, already we have the sctp_extrcvinfo
   85  * when enabled which is 48 bytes.
   86  */
   87 
   88 /*
   89  * The assoc up needs a verfid
   90  * all sendrcvinfo's need a verfid for SENDING only.
   91  */
   92 
   93 
   94 #define SCTP_ALIGN_RESV_PAD 96
   95 #define SCTP_ALIGN_RESV_PAD_SHORT 80
   96 
   97 struct sctp_sndrcvinfo {
   98         uint16_t sinfo_stream;
   99         uint16_t sinfo_ssn;
  100         uint16_t sinfo_flags;
  101         uint32_t sinfo_ppid;
  102         uint32_t sinfo_context;
  103         uint32_t sinfo_timetolive;
  104         uint32_t sinfo_tsn;
  105         uint32_t sinfo_cumtsn;
  106         sctp_assoc_t sinfo_assoc_id;
  107         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
  108 };
  109 
  110 struct sctp_extrcvinfo {
  111         uint16_t sinfo_stream;
  112         uint16_t sinfo_ssn;
  113         uint16_t sinfo_flags;
  114         uint16_t sinfo_pr_policy;
  115         uint32_t sinfo_ppid;
  116         uint32_t sinfo_context;
  117         uint32_t sinfo_timetolive;
  118         uint32_t sinfo_tsn;
  119         uint32_t sinfo_cumtsn;
  120         sctp_assoc_t sinfo_assoc_id;
  121         uint16_t sreinfo_next_flags;
  122         uint16_t sreinfo_next_stream;
  123         uint32_t sreinfo_next_aid;
  124         uint32_t sreinfo_next_length;
  125         uint32_t sreinfo_next_ppid;
  126         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
  127 };
  128 
  129 #define SCTP_NO_NEXT_MSG           0x0000
  130 #define SCTP_NEXT_MSG_AVAIL        0x0001
  131 #define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
  132 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
  133 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
  134 
  135 struct sctp_snd_all_completes {
  136         uint16_t sall_stream;
  137         uint16_t sall_flags;
  138         uint32_t sall_ppid;
  139         uint32_t sall_context;
  140         uint32_t sall_num_sent;
  141         uint32_t sall_num_failed;
  142 };
  143 
  144 /* Flags that go into the sinfo->sinfo_flags field */
  145 #define SCTP_EOF              0x0100    /* Start shutdown procedures */
  146 #define SCTP_ABORT            0x0200    /* Send an ABORT to peer */
  147 #define SCTP_UNORDERED        0x0400    /* Message is un-ordered */
  148 #define SCTP_ADDR_OVER        0x0800    /* Override the primary-address */
  149 #define SCTP_SENDALL          0x1000    /* Send this on all associations */
  150 #define SCTP_EOR              0x2000    /* end of message signal */
  151 #define SCTP_SACK_IMMEDIATELY 0x4000    /* Set I-Bit */
  152 
  153 #define INVALID_SINFO_FLAG(x) (((x) & 0xffffff00 \
  154                                     & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
  155                                         SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\
  156                                         SCTP_SACK_IMMEDIATELY)) != 0)
  157 /* for the endpoint */
  158 
  159 /* The lower byte is an enumeration of PR-SCTP policies */
  160 #define SCTP_PR_SCTP_TTL  0x0001/* Time based PR-SCTP */
  161 #define SCTP_PR_SCTP_BUF  0x0002/* Buffer based PR-SCTP */
  162 #define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
  163 
  164 #define PR_SCTP_POLICY(x)         ((x) & 0xff)
  165 #define PR_SCTP_ENABLED(x)        (PR_SCTP_POLICY(x) != 0)
  166 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
  167 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
  168 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
  169 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)
  170 /* Stat's */
  171 struct sctp_pcbinfo {
  172         uint32_t ep_count;
  173         uint32_t asoc_count;
  174         uint32_t laddr_count;
  175         uint32_t raddr_count;
  176         uint32_t chk_count;
  177         uint32_t readq_count;
  178         uint32_t free_chunks;
  179         uint32_t stream_oque;
  180 };
  181 
  182 struct sctp_sockstat {
  183         sctp_assoc_t ss_assoc_id;
  184         uint32_t ss_total_sndbuf;
  185         uint32_t ss_total_recv_buf;
  186 };
  187 
  188 /*
  189  * notification event structures
  190  */
  191 
  192 /*
  193  * association change event
  194  */
  195 struct sctp_assoc_change {
  196         uint16_t sac_type;
  197         uint16_t sac_flags;
  198         uint32_t sac_length;
  199         uint16_t sac_state;
  200         uint16_t sac_error;
  201         uint16_t sac_outbound_streams;
  202         uint16_t sac_inbound_streams;
  203         sctp_assoc_t sac_assoc_id;
  204 };
  205 
  206 /* sac_state values */
  207 #define SCTP_COMM_UP            0x0001
  208 #define SCTP_COMM_LOST          0x0002
  209 #define SCTP_RESTART            0x0003
  210 #define SCTP_SHUTDOWN_COMP      0x0004
  211 #define SCTP_CANT_STR_ASSOC     0x0005
  212 
  213 
  214 /*
  215  * Address event
  216  */
  217 struct sctp_paddr_change {
  218         uint16_t spc_type;
  219         uint16_t spc_flags;
  220         uint32_t spc_length;
  221         struct sockaddr_storage spc_aaddr;
  222         uint32_t spc_state;
  223         uint32_t spc_error;
  224         sctp_assoc_t spc_assoc_id;
  225         uint8_t spc_padding[4];
  226 };
  227 
  228 /* paddr state values */
  229 #define SCTP_ADDR_AVAILABLE     0x0001
  230 #define SCTP_ADDR_UNREACHABLE   0x0002
  231 #define SCTP_ADDR_REMOVED       0x0003
  232 #define SCTP_ADDR_ADDED         0x0004
  233 #define SCTP_ADDR_MADE_PRIM     0x0005
  234 #define SCTP_ADDR_CONFIRMED     0x0006
  235 
  236 /*
  237  * CAUTION: these are user exposed SCTP addr reachability states must be
  238  * compatible with SCTP_ADDR states in sctp_constants.h
  239  */
  240 #ifdef SCTP_ACTIVE
  241 #undef SCTP_ACTIVE
  242 #endif
  243 #define SCTP_ACTIVE             0x0001  /* SCTP_ADDR_REACHABLE */
  244 
  245 #ifdef SCTP_INACTIVE
  246 #undef SCTP_INACTIVE
  247 #endif
  248 #define SCTP_INACTIVE           0x0002  /* SCTP_ADDR_NOT_REACHABLE */
  249 
  250 #ifdef SCTP_UNCONFIRMED
  251 #undef SCTP_UNCONFIRMED
  252 #endif
  253 #define SCTP_UNCONFIRMED        0x0200  /* SCTP_ADDR_UNCONFIRMED */
  254 
  255 #ifdef SCTP_NOHEARTBEAT
  256 #undef SCTP_NOHEARTBEAT
  257 #endif
  258 #define SCTP_NOHEARTBEAT        0x0040  /* SCTP_ADDR_NOHB */
  259 
  260 
  261 /* remote error events */
  262 struct sctp_remote_error {
  263         uint16_t sre_type;
  264         uint16_t sre_flags;
  265         uint32_t sre_length;
  266         uint16_t sre_error;
  267         sctp_assoc_t sre_assoc_id;
  268         uint8_t sre_data[4];
  269 };
  270 
  271 /* data send failure event */
  272 struct sctp_send_failed {
  273         uint16_t ssf_type;
  274         uint16_t ssf_flags;
  275         uint32_t ssf_length;
  276         uint32_t ssf_error;
  277         struct sctp_sndrcvinfo ssf_info;
  278         sctp_assoc_t ssf_assoc_id;
  279         uint8_t ssf_data[];
  280 };
  281 
  282 /* flag that indicates state of data */
  283 #define SCTP_DATA_UNSENT        0x0001  /* inqueue never on wire */
  284 #define SCTP_DATA_SENT          0x0002  /* on wire at failure */
  285 
  286 /* shutdown event */
  287 struct sctp_shutdown_event {
  288         uint16_t sse_type;
  289         uint16_t sse_flags;
  290         uint32_t sse_length;
  291         sctp_assoc_t sse_assoc_id;
  292 };
  293 
  294 /* Adaptation layer indication stuff */
  295 struct sctp_adaptation_event {
  296         uint16_t sai_type;
  297         uint16_t sai_flags;
  298         uint32_t sai_length;
  299         uint32_t sai_adaptation_ind;
  300         sctp_assoc_t sai_assoc_id;
  301 };
  302 
  303 struct sctp_setadaptation {
  304         uint32_t ssb_adaptation_ind;
  305 };
  306 
  307 /* compatible old spelling */
  308 struct sctp_adaption_event {
  309         uint16_t sai_type;
  310         uint16_t sai_flags;
  311         uint32_t sai_length;
  312         uint32_t sai_adaption_ind;
  313         sctp_assoc_t sai_assoc_id;
  314 };
  315 
  316 struct sctp_setadaption {
  317         uint32_t ssb_adaption_ind;
  318 };
  319 
  320 
  321 /*
  322  * Partial Delivery API event
  323  */
  324 struct sctp_pdapi_event {
  325         uint16_t pdapi_type;
  326         uint16_t pdapi_flags;
  327         uint32_t pdapi_length;
  328         uint32_t pdapi_indication;
  329         uint16_t pdapi_stream;
  330         uint16_t pdapi_seq;
  331         sctp_assoc_t pdapi_assoc_id;
  332 };
  333 
  334 /* indication values */
  335 #define SCTP_PARTIAL_DELIVERY_ABORTED   0x0001
  336 
  337 
  338 /*
  339  * authentication key event
  340  */
  341 struct sctp_authkey_event {
  342         uint16_t auth_type;
  343         uint16_t auth_flags;
  344         uint32_t auth_length;
  345         uint16_t auth_keynumber;
  346         uint16_t auth_altkeynumber;
  347         uint32_t auth_indication;
  348         sctp_assoc_t auth_assoc_id;
  349 };
  350 
  351 /* indication values */
  352 #define SCTP_AUTH_NEWKEY        0x0001
  353 #define SCTP_AUTH_NO_AUTH       0x0002
  354 #define SCTP_AUTH_FREE_KEY      0x0003
  355 
  356 
  357 struct sctp_sender_dry_event {
  358         uint16_t sender_dry_type;
  359         uint16_t sender_dry_flags;
  360         uint32_t sender_dry_length;
  361         sctp_assoc_t sender_dry_assoc_id;
  362 };
  363 
  364 
  365 /*
  366  * stream reset event
  367  */
  368 struct sctp_stream_reset_event {
  369         uint16_t strreset_type;
  370         uint16_t strreset_flags;
  371         uint32_t strreset_length;
  372         sctp_assoc_t strreset_assoc_id;
  373         uint16_t strreset_list[];
  374 };
  375 
  376 /* flags in strreset_flags field */
  377 #define SCTP_STRRESET_INBOUND_STR  0x0001
  378 #define SCTP_STRRESET_OUTBOUND_STR 0x0002
  379 #define SCTP_STRRESET_ALL_STREAMS  0x0004
  380 #define SCTP_STRRESET_STREAM_LIST  0x0008
  381 #define SCTP_STRRESET_FAILED       0x0010
  382 #define SCTP_STRRESET_ADD_STREAM   0x0020
  383 
  384 /* SCTP notification event */
  385 struct sctp_tlv {
  386         uint16_t sn_type;
  387         uint16_t sn_flags;
  388         uint32_t sn_length;
  389 };
  390 
  391 union sctp_notification {
  392         struct sctp_tlv sn_header;
  393         struct sctp_assoc_change sn_assoc_change;
  394         struct sctp_paddr_change sn_paddr_change;
  395         struct sctp_remote_error sn_remote_error;
  396         struct sctp_send_failed sn_send_failed;
  397         struct sctp_shutdown_event sn_shutdown_event;
  398         struct sctp_adaptation_event sn_adaptation_event;
  399         /* compatibility same as above */
  400         struct sctp_adaption_event sn_adaption_event;
  401         struct sctp_pdapi_event sn_pdapi_event;
  402         struct sctp_authkey_event sn_auth_event;
  403         struct sctp_sender_dry_event sn_sender_dry_event;
  404         struct sctp_stream_reset_event sn_strreset_event;
  405 };
  406 
  407 /* notification types */
  408 #define SCTP_ASSOC_CHANGE                       0x0001
  409 #define SCTP_PEER_ADDR_CHANGE                   0x0002
  410 #define SCTP_REMOTE_ERROR                       0x0003
  411 #define SCTP_SEND_FAILED                        0x0004
  412 #define SCTP_SHUTDOWN_EVENT                     0x0005
  413 #define SCTP_ADAPTATION_INDICATION              0x0006
  414 /* same as above */
  415 #define SCTP_ADAPTION_INDICATION                0x0006
  416 #define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
  417 #define SCTP_AUTHENTICATION_EVENT               0x0008
  418 #define SCTP_STREAM_RESET_EVENT                 0x0009
  419 #define SCTP_SENDER_DRY_EVENT                   0x000a
  420 #define SCTP__NOTIFICATIONS_STOPPED_EVENT       0x000b  /* we don't send this */
  421 /*
  422  * socket option structs
  423  */
  424 
  425 struct sctp_paddrparams {
  426         struct sockaddr_storage spp_address;
  427         sctp_assoc_t spp_assoc_id;
  428         uint32_t spp_hbinterval;
  429         uint32_t spp_pathmtu;
  430         uint32_t spp_flags;
  431         uint32_t spp_ipv6_flowlabel;
  432         uint16_t spp_pathmaxrxt;
  433         uint8_t spp_ipv4_tos;
  434 };
  435 
  436 #define SPP_HB_ENABLE           0x00000001
  437 #define SPP_HB_DISABLE          0x00000002
  438 #define SPP_HB_DEMAND           0x00000004
  439 #define SPP_PMTUD_ENABLE        0x00000008
  440 #define SPP_PMTUD_DISABLE       0x00000010
  441 #define SPP_HB_TIME_IS_ZERO     0x00000080
  442 #define SPP_IPV6_FLOWLABEL      0x00000100
  443 #define SPP_IPV4_TOS            0x00000200
  444 
  445 struct sctp_paddrinfo {
  446         struct sockaddr_storage spinfo_address;
  447         sctp_assoc_t spinfo_assoc_id;
  448         int32_t spinfo_state;
  449         uint32_t spinfo_cwnd;
  450         uint32_t spinfo_srtt;
  451         uint32_t spinfo_rto;
  452         uint32_t spinfo_mtu;
  453 };
  454 
  455 struct sctp_rtoinfo {
  456         sctp_assoc_t srto_assoc_id;
  457         uint32_t srto_initial;
  458         uint32_t srto_max;
  459         uint32_t srto_min;
  460 };
  461 
  462 struct sctp_assocparams {
  463         sctp_assoc_t sasoc_assoc_id;
  464         uint32_t sasoc_peer_rwnd;
  465         uint32_t sasoc_local_rwnd;
  466         uint32_t sasoc_cookie_life;
  467         uint16_t sasoc_asocmaxrxt;
  468         uint16_t sasoc_number_peer_destinations;
  469 };
  470 
  471 struct sctp_setprim {
  472         struct sockaddr_storage ssp_addr;
  473         sctp_assoc_t ssp_assoc_id;
  474         uint8_t ssp_padding[4];
  475 };
  476 
  477 struct sctp_setpeerprim {
  478         struct sockaddr_storage sspp_addr;
  479         sctp_assoc_t sspp_assoc_id;
  480         uint8_t sspp_padding[4];
  481 };
  482 
  483 struct sctp_getaddresses {
  484         sctp_assoc_t sget_assoc_id;
  485         /* addr is filled in for N * sockaddr_storage */
  486         struct sockaddr addr[1];
  487 };
  488 
  489 struct sctp_setstrm_timeout {
  490         sctp_assoc_t ssto_assoc_id;
  491         uint32_t ssto_timeout;
  492         uint32_t ssto_streamid_start;
  493         uint32_t ssto_streamid_end;
  494 };
  495 
  496 struct sctp_status {
  497         sctp_assoc_t sstat_assoc_id;
  498         int32_t sstat_state;
  499         uint32_t sstat_rwnd;
  500         uint16_t sstat_unackdata;
  501         uint16_t sstat_penddata;
  502         uint16_t sstat_instrms;
  503         uint16_t sstat_outstrms;
  504         uint32_t sstat_fragmentation_point;
  505         struct sctp_paddrinfo sstat_primary;
  506 };
  507 
  508 /*
  509  * AUTHENTICATION support
  510  */
  511 /* SCTP_AUTH_CHUNK */
  512 struct sctp_authchunk {
  513         uint8_t sauth_chunk;
  514 };
  515 
  516 /* SCTP_AUTH_KEY */
  517 struct sctp_authkey {
  518         sctp_assoc_t sca_assoc_id;
  519         uint16_t sca_keynumber;
  520         uint8_t sca_key[];
  521 };
  522 
  523 /* SCTP_HMAC_IDENT */
  524 struct sctp_hmacalgo {
  525         uint32_t shmac_number_of_idents;
  526         uint16_t shmac_idents[];
  527 };
  528 
  529 /* AUTH hmac_id */
  530 #define SCTP_AUTH_HMAC_ID_RSVD          0x0000
  531 #define SCTP_AUTH_HMAC_ID_SHA1          0x0001  /* default, mandatory */
  532 #define SCTP_AUTH_HMAC_ID_SHA256        0x0003
  533 #define SCTP_AUTH_HMAC_ID_SHA224        0x0004
  534 #define SCTP_AUTH_HMAC_ID_SHA384        0x0005
  535 #define SCTP_AUTH_HMAC_ID_SHA512        0x0006
  536 
  537 
  538 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
  539 struct sctp_authkeyid {
  540         sctp_assoc_t scact_assoc_id;
  541         uint16_t scact_keynumber;
  542 };
  543 
  544 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
  545 struct sctp_authchunks {
  546         sctp_assoc_t gauth_assoc_id;
  547         uint8_t gauth_chunks[];
  548 };
  549 
  550 struct sctp_assoc_value {
  551         sctp_assoc_t assoc_id;
  552         uint32_t assoc_value;
  553 };
  554 
  555 struct sctp_assoc_ids {
  556         uint32_t gaids_number_of_ids;
  557         sctp_assoc_t gaids_assoc_id[];
  558 };
  559 
  560 struct sctp_sack_info {
  561         sctp_assoc_t sack_assoc_id;
  562         uint32_t sack_delay;
  563         uint32_t sack_freq;
  564 };
  565 
  566 struct sctp_timeouts {
  567         sctp_assoc_t stimo_assoc_id;
  568         uint32_t stimo_init;
  569         uint32_t stimo_data;
  570         uint32_t stimo_sack;
  571         uint32_t stimo_shutdown;
  572         uint32_t stimo_heartbeat;
  573         uint32_t stimo_cookie;
  574         uint32_t stimo_shutdownack;
  575 };
  576 
  577 struct sctp_cwnd_args {
  578         struct sctp_nets *net;  /* network to *//* FIXME: LP64 issue */
  579         uint32_t cwnd_new_value;/* cwnd in k */
  580         uint32_t pseudo_cumack;
  581         uint16_t inflight;      /* flightsize in k */
  582         uint16_t cwnd_augment;  /* increment to it */
  583         uint8_t meets_pseudo_cumack;
  584         uint8_t need_new_pseudo_cumack;
  585         uint8_t cnt_in_send;
  586         uint8_t cnt_in_str;
  587 };
  588 
  589 struct sctp_blk_args {
  590         uint32_t onsb;          /* in 1k bytes */
  591         uint32_t sndlen;        /* len of send being attempted */
  592         uint32_t peer_rwnd;     /* rwnd of peer */
  593         uint16_t send_sent_qcnt;/* chnk cnt */
  594         uint16_t stream_qcnt;   /* chnk cnt */
  595         uint16_t chunks_on_oque;/* chunks out */
  596         uint16_t flight_size;   /* flight size in k */
  597 };
  598 
  599 /*
  600  * Max we can reset in one setting, note this is dictated not by the define
  601  * but the size of a mbuf cluster so don't change this define and think you
  602  * can specify more. You must do multiple resets if you want to reset more
  603  * than SCTP_MAX_EXPLICIT_STR_RESET.
  604  */
  605 #define SCTP_MAX_EXPLICT_STR_RESET   1000
  606 
  607 #define SCTP_RESET_LOCAL_RECV  0x0001
  608 #define SCTP_RESET_LOCAL_SEND  0x0002
  609 #define SCTP_RESET_BOTH        0x0003
  610 #define SCTP_RESET_TSN         0x0004
  611 #define SCTP_RESET_ADD_STREAMS 0x0005
  612 
  613 struct sctp_stream_reset {
  614         sctp_assoc_t strrst_assoc_id;
  615         uint16_t strrst_flags;
  616         uint16_t strrst_num_streams;    /* 0 == ALL */
  617         uint16_t strrst_list[]; /* list if strrst_num_streams is not 0 */
  618 };
  619 
  620 
  621 struct sctp_get_nonce_values {
  622         sctp_assoc_t gn_assoc_id;
  623         uint32_t gn_peers_tag;
  624         uint32_t gn_local_tag;
  625 };
  626 
  627 /* Debugging logs */
  628 struct sctp_str_log {
  629         void *stcb;             /* FIXME: LP64 issue */
  630         uint32_t n_tsn;
  631         uint32_t e_tsn;
  632         uint16_t n_sseq;
  633         uint16_t e_sseq;
  634         uint16_t strm;
  635 };
  636 
  637 struct sctp_sb_log {
  638         void *stcb;             /* FIXME: LP64 issue */
  639         uint32_t so_sbcc;
  640         uint32_t stcb_sbcc;
  641         uint32_t incr;
  642 };
  643 
  644 struct sctp_fr_log {
  645         uint32_t largest_tsn;
  646         uint32_t largest_new_tsn;
  647         uint32_t tsn;
  648 };
  649 
  650 struct sctp_fr_map {
  651         uint32_t base;
  652         uint32_t cum;
  653         uint32_t high;
  654 };
  655 
  656 struct sctp_rwnd_log {
  657         uint32_t rwnd;
  658         uint32_t send_size;
  659         uint32_t overhead;
  660         uint32_t new_rwnd;
  661 };
  662 
  663 struct sctp_mbcnt_log {
  664         uint32_t total_queue_size;
  665         uint32_t size_change;
  666         uint32_t total_queue_mb_size;
  667         uint32_t mbcnt_change;
  668 };
  669 
  670 struct sctp_sack_log {
  671         uint32_t cumack;
  672         uint32_t oldcumack;
  673         uint32_t tsn;
  674         uint16_t numGaps;
  675         uint16_t numDups;
  676 };
  677 
  678 struct sctp_lock_log {
  679         void *sock;             /* FIXME: LP64 issue */
  680         void *inp;              /* FIXME: LP64 issue */
  681         uint8_t tcb_lock;
  682         uint8_t inp_lock;
  683         uint8_t info_lock;
  684         uint8_t sock_lock;
  685         uint8_t sockrcvbuf_lock;
  686         uint8_t socksndbuf_lock;
  687         uint8_t create_lock;
  688         uint8_t resv;
  689 };
  690 
  691 struct sctp_rto_log {
  692         void *net;              /* FIXME: LP64 issue */
  693         uint32_t rtt;
  694 };
  695 
  696 struct sctp_nagle_log {
  697         void *stcb;             /* FIXME: LP64 issue */
  698         uint32_t total_flight;
  699         uint32_t total_in_queue;
  700         uint16_t count_in_queue;
  701         uint16_t count_in_flight;
  702 };
  703 
  704 struct sctp_sbwake_log {
  705         void *stcb;             /* FIXME: LP64 issue */
  706         uint16_t send_q;
  707         uint16_t sent_q;
  708         uint16_t flight;
  709         uint16_t wake_cnt;
  710         uint8_t stream_qcnt;    /* chnk cnt */
  711         uint8_t chunks_on_oque; /* chunks out */
  712         uint8_t sbflags;
  713         uint8_t sctpflags;
  714 };
  715 
  716 struct sctp_misc_info {
  717         uint32_t log1;
  718         uint32_t log2;
  719         uint32_t log3;
  720         uint32_t log4;
  721 };
  722 
  723 struct sctp_log_closing {
  724         void *inp;              /* FIXME: LP64 issue */
  725         void *stcb;             /* FIXME: LP64 issue */
  726         uint32_t sctp_flags;
  727         uint16_t state;
  728         int16_t loc;
  729 };
  730 
  731 struct sctp_mbuf_log {
  732         struct mbuf *mp;        /* FIXME: LP64 issue */
  733         caddr_t ext;
  734         caddr_t data;
  735         uint16_t size;
  736         uint8_t refcnt;
  737         uint8_t mbuf_flags;
  738 };
  739 
  740 struct sctp_cwnd_log {
  741         uint64_t time_event;
  742         uint8_t from;
  743         uint8_t event_type;
  744         uint8_t resv[2];
  745         union {
  746                 struct sctp_log_closing close;
  747                 struct sctp_blk_args blk;
  748                 struct sctp_cwnd_args cwnd;
  749                 struct sctp_str_log strlog;
  750                 struct sctp_fr_log fr;
  751                 struct sctp_fr_map map;
  752                 struct sctp_rwnd_log rwnd;
  753                 struct sctp_mbcnt_log mbcnt;
  754                 struct sctp_sack_log sack;
  755                 struct sctp_lock_log lock;
  756                 struct sctp_rto_log rto;
  757                 struct sctp_sb_log sb;
  758                 struct sctp_nagle_log nagle;
  759                 struct sctp_sbwake_log wake;
  760                 struct sctp_mbuf_log mb;
  761                 struct sctp_misc_info misc;
  762         }     x;
  763 };
  764 
  765 struct sctp_cwnd_log_req {
  766         int32_t num_in_log;     /* Number in log */
  767         int32_t num_ret;        /* Number returned */
  768         int32_t start_at;       /* start at this one */
  769         int32_t end_at;         /* end at this one */
  770         struct sctp_cwnd_log log[];
  771 };
  772 
  773 struct sctp_timeval {
  774         uint32_t tv_sec;
  775         uint32_t tv_usec;
  776 };
  777 
  778 struct sctpstat {
  779         struct sctp_timeval sctps_discontinuitytime;    /* sctpStats 18
  780                                                          * (TimeStamp) */
  781         /* MIB according to RFC 3873 */
  782         uint32_t sctps_currestab;       /* sctpStats  1   (Gauge32) */
  783         uint32_t sctps_activeestab;     /* sctpStats  2 (Counter32) */
  784         uint32_t sctps_restartestab;
  785         uint32_t sctps_collisionestab;
  786         uint32_t sctps_passiveestab;    /* sctpStats  3 (Counter32) */
  787         uint32_t sctps_aborted; /* sctpStats  4 (Counter32) */
  788         uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
  789         uint32_t sctps_outoftheblue;    /* sctpStats  6 (Counter32) */
  790         uint32_t sctps_checksumerrors;  /* sctpStats  7 (Counter32) */
  791         uint32_t sctps_outcontrolchunks;        /* sctpStats  8 (Counter64) */
  792         uint32_t sctps_outorderchunks;  /* sctpStats  9 (Counter64) */
  793         uint32_t sctps_outunorderchunks;        /* sctpStats 10 (Counter64) */
  794         uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */
  795         uint32_t sctps_inorderchunks;   /* sctpStats 12 (Counter64) */
  796         uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */
  797         uint32_t sctps_fragusrmsgs;     /* sctpStats 14 (Counter64) */
  798         uint32_t sctps_reasmusrmsgs;    /* sctpStats 15 (Counter64) */
  799         uint32_t sctps_outpackets;      /* sctpStats 16 (Counter64) */
  800         uint32_t sctps_inpackets;       /* sctpStats 17 (Counter64) */
  801 
  802         /* input statistics: */
  803         uint32_t sctps_recvpackets;     /* total input packets        */
  804         uint32_t sctps_recvdatagrams;   /* total input datagrams      */
  805         uint32_t sctps_recvpktwithdata; /* total packets that had data */
  806         uint32_t sctps_recvsacks;       /* total input SACK chunks    */
  807         uint32_t sctps_recvdata;/* total input DATA chunks    */
  808         uint32_t sctps_recvdupdata;     /* total input duplicate DATA chunks */
  809         uint32_t sctps_recvheartbeat;   /* total input HB chunks      */
  810         uint32_t sctps_recvheartbeatack;        /* total input HB-ACK chunks  */
  811         uint32_t sctps_recvecne;/* total input ECNE chunks    */
  812         uint32_t sctps_recvauth;/* total input AUTH chunks    */
  813         uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */
  814         uint32_t sctps_recvivalhmacid;  /* total number of invalid HMAC ids
  815                                          * received */
  816         uint32_t sctps_recvivalkeyid;   /* total number of invalid secret ids
  817                                          * received */
  818         uint32_t sctps_recvauthfailed;  /* total number of auth failed */
  819         uint32_t sctps_recvexpress;     /* total fast path receives all one
  820                                          * chunk */
  821         uint32_t sctps_recvexpressm;    /* total fast path multi-part data */
  822         uint32_t sctps_recvnocrc;
  823         uint32_t sctps_recvswcrc;
  824         uint32_t sctps_recvhwcrc;
  825 
  826         /* output statistics: */
  827         uint32_t sctps_sendpackets;     /* total output packets       */
  828         uint32_t sctps_sendsacks;       /* total output SACKs         */
  829         uint32_t sctps_senddata;/* total output DATA chunks   */
  830         uint32_t sctps_sendretransdata; /* total output retransmitted DATA
  831                                          * chunks */
  832         uint32_t sctps_sendfastretrans; /* total output fast retransmitted
  833                                          * DATA chunks */
  834         uint32_t sctps_sendmultfastretrans;     /* total FR's that happened
  835                                                  * more than once to same
  836                                                  * chunk (u-del multi-fr
  837                                                  * algo). */
  838         uint32_t sctps_sendheartbeat;   /* total output HB chunks     */
  839         uint32_t sctps_sendecne;/* total output ECNE chunks    */
  840         uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
  841         uint32_t sctps_senderrors;      /* ip_output error counter */
  842         uint32_t sctps_sendnocrc;
  843         uint32_t sctps_sendswcrc;
  844         uint32_t sctps_sendhwcrc;
  845         /* PCKDROPREP statistics: */
  846         uint32_t sctps_pdrpfmbox;       /* Packet drop from middle box */
  847         uint32_t sctps_pdrpfehos;       /* P-drop from end host */
  848         uint32_t sctps_pdrpmbda;/* P-drops with data */
  849         uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
  850         uint32_t sctps_pdrpbwrpt;       /* P-drop, non-endhost, bandwidth rep
  851                                          * only */
  852         uint32_t sctps_pdrpcrupt;       /* P-drop, not enough for chunk header */
  853         uint32_t sctps_pdrpnedat;       /* P-drop, not enough data to confirm */
  854         uint32_t sctps_pdrppdbrk;       /* P-drop, where process_chunk_drop
  855                                          * said break */
  856         uint32_t sctps_pdrptsnnf;       /* P-drop, could not find TSN */
  857         uint32_t sctps_pdrpdnfnd;       /* P-drop, attempt reverse TSN lookup */
  858         uint32_t sctps_pdrpdiwnp;       /* P-drop, e-host confirms zero-rwnd */
  859         uint32_t sctps_pdrpdizrw;       /* P-drop, midbox confirms no space */
  860         uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
  861         uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
  862         /* timeouts */
  863         uint32_t sctps_timoiterator;    /* Number of iterator timers that
  864                                          * fired */
  865         uint32_t sctps_timodata;/* Number of T3 data time outs */
  866         uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers
  867                                          * that fired */
  868         uint32_t sctps_timoinit;/* Number of INIT timers that fired */
  869         uint32_t sctps_timosack;/* Number of sack timers that fired */
  870         uint32_t sctps_timoshutdown;    /* Number of shutdown timers that
  871                                          * fired */
  872         uint32_t sctps_timoheartbeat;   /* Number of heartbeat timers that
  873                                          * fired */
  874         uint32_t sctps_timocookie;      /* Number of times a cookie timeout
  875                                          * fired */
  876         uint32_t sctps_timosecret;      /* Number of times an endpoint changed
  877                                          * its cookie secret */
  878         uint32_t sctps_timopathmtu;     /* Number of PMTU timers that fired */
  879         uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that
  880                                          * fired */
  881         uint32_t sctps_timoshutdownguard;       /* Number of shutdown guard
  882                                                  * timers that fired */
  883         uint32_t sctps_timostrmrst;     /* Number of stream reset timers that
  884                                          * fired */
  885         uint32_t sctps_timoearlyfr;     /* Number of early FR timers that
  886                                          * fired */
  887         uint32_t sctps_timoasconf;      /* Number of times an asconf timer
  888                                          * fired */
  889         uint32_t sctps_timodelprim;     /* Number of times a prim_deleted
  890                                          * timer fired */
  891         uint32_t sctps_timoautoclose;   /* Number of times auto close timer
  892                                          * fired */
  893         uint32_t sctps_timoassockill;   /* Number of asoc free timers expired */
  894         uint32_t sctps_timoinpkill;     /* Number of inp free timers expired */
  895         /* Early fast retransmission counters */
  896         uint32_t sctps_earlyfrstart;
  897         uint32_t sctps_earlyfrstop;
  898         uint32_t sctps_earlyfrmrkretrans;
  899         uint32_t sctps_earlyfrstpout;
  900         uint32_t sctps_earlyfrstpidsck1;
  901         uint32_t sctps_earlyfrstpidsck2;
  902         uint32_t sctps_earlyfrstpidsck3;
  903         uint32_t sctps_earlyfrstpidsck4;
  904         uint32_t sctps_earlyfrstrid;
  905         uint32_t sctps_earlyfrstrout;
  906         uint32_t sctps_earlyfrstrtmr;
  907         /* others */
  908         uint32_t sctps_hdrops;  /* packet shorter than header */
  909         uint32_t sctps_badsum;  /* checksum error             */
  910         uint32_t sctps_noport;  /* no endpoint for port       */
  911         uint32_t sctps_badvtag; /* bad v-tag                  */
  912         uint32_t sctps_badsid;  /* bad SID                    */
  913         uint32_t sctps_nomem;   /* no memory                  */
  914         uint32_t sctps_fastretransinrtt;        /* number of multiple FR in a
  915                                                  * RTT window */
  916         uint32_t sctps_markedretrans;
  917         uint32_t sctps_naglesent;       /* nagle allowed sending      */
  918         uint32_t sctps_naglequeued;     /* nagle doesn't allow sending */
  919         uint32_t sctps_maxburstqueued;  /* max burst doesn't allow sending */
  920         uint32_t sctps_ifnomemqueued;   /* look ahead tells us no memory in
  921                                          * interface ring buffer OR we had a
  922                                          * send error and are queuing one
  923                                          * send. */
  924         uint32_t sctps_windowprobed;    /* total number of window probes sent */
  925         uint32_t sctps_lowlevelerr;     /* total times an output error causes
  926                                          * us to clamp down on next user send. */
  927         uint32_t sctps_lowlevelerrusr;  /* total times sctp_senderrors were
  928                                          * caused from a user send from a user
  929                                          * invoked send not a sack response */
  930         uint32_t sctps_datadropchklmt;  /* Number of in data drops due to
  931                                          * chunk limit reached */
  932         uint32_t sctps_datadroprwnd;    /* Number of in data drops due to rwnd
  933                                          * limit reached */
  934         uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the
  935                                          * cwnd */
  936         uint32_t sctps_vtagexpress;     /* Used express lookup via vtag */
  937         uint32_t sctps_vtagbogus;       /* Collision in express lookup. */
  938         uint32_t sctps_primary_randry;  /* Number of times the sender ran dry
  939                                          * of user data on primary */
  940         uint32_t sctps_cmt_randry;      /* Same for above */
  941         uint32_t sctps_slowpath_sack;   /* Sacks the slow way */
  942         uint32_t sctps_wu_sacks_sent;   /* Window Update only sacks sent */
  943         uint32_t sctps_sends_with_flags;        /* number of sends with
  944                                                  * sinfo_flags !=0 */
  945         uint32_t sctps_sends_with_unord; /* number of unordered sends */
  946         uint32_t sctps_sends_with_eof;  /* number of sends with EOF flag set */
  947         uint32_t sctps_sends_with_abort;        /* number of sends with ABORT
  948                                                  * flag set */
  949         uint32_t sctps_protocol_drain_calls;    /* number of times protocol
  950                                                  * drain called */
  951         uint32_t sctps_protocol_drains_done;    /* number of times we did a
  952                                                  * protocol drain */
  953         uint32_t sctps_read_peeks;      /* Number of times recv was called
  954                                          * with peek */
  955         uint32_t sctps_cached_chk;      /* Number of cached chunks used */
  956         uint32_t sctps_cached_strmoq;   /* Number of cached stream oq's used */
  957         uint32_t sctps_left_abandon;    /* Number of unread messages abandoned
  958                                          * by close */
  959         uint32_t sctps_send_burst_avoid;        /* Unused */
  960         uint32_t sctps_send_cwnd_avoid; /* Send cwnd full  avoidance, already
  961                                          * max burst inflight to net */
  962         uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via
  963                                          * fwd-tsn's */
  964 
  965         uint32_t sctps_reserved[32];    /* Future ABI compat - remove int's
  966                                          * from here when adding new */
  967 };
  968 
  969 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
  970 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
  971 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
  972 #define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
  973 #define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
  974 #else
  975 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
  976 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
  977 #endif
  978 /* The following macros are for handling MIB values, */
  979 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
  980 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
  981 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
  982 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
  983 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
  984 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
  985 
  986 union sctp_sockstore {
  987 #if defined(INET) || !defined(_KERNEL)
  988         struct sockaddr_in sin;
  989 #endif
  990 #if defined(INET6) || !defined(_KERNEL)
  991         struct sockaddr_in6 sin6;
  992 #endif
  993         struct sockaddr sa;
  994 };
  995 
  996 
  997 /***********************************/
  998 /* And something for us old timers */
  999 /***********************************/
 1000 
 1001 #ifndef ntohll
 1002 #include <sys/endian.h>
 1003 #define ntohll(x) be64toh(x)
 1004 #endif
 1005 
 1006 #ifndef htonll
 1007 #include <sys/endian.h>
 1008 #define htonll(x) htobe64(x)
 1009 #endif
 1010 /***********************************/
 1011 
 1012 
 1013 struct xsctp_inpcb {
 1014         uint32_t last;
 1015         uint32_t flags;
 1016         uint32_t features;
 1017         uint32_t total_sends;
 1018         uint32_t total_recvs;
 1019         uint32_t total_nospaces;
 1020         uint32_t fragmentation_point;
 1021         uint16_t local_port;
 1022         uint16_t qlen;
 1023         uint16_t maxqlen;
 1024         uint32_t extra_padding[32];     /* future */
 1025 };
 1026 
 1027 struct xsctp_tcb {
 1028         union sctp_sockstore primary_addr;      /* sctpAssocEntry 5/6 */
 1029         uint32_t last;
 1030         uint32_t heartbeat_interval;    /* sctpAssocEntry 7   */
 1031         uint32_t state;         /* sctpAssocEntry 8   */
 1032         uint32_t in_streams;    /* sctpAssocEntry 9   */
 1033         uint32_t out_streams;   /* sctpAssocEntry 10  */
 1034         uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
 1035         uint32_t primary_process;       /* sctpAssocEntry 12  */
 1036         uint32_t T1_expireries; /* sctpAssocEntry 13  */
 1037         uint32_t T2_expireries; /* sctpAssocEntry 14  */
 1038         uint32_t retransmitted_tsns;    /* sctpAssocEntry 15  */
 1039         uint32_t total_sends;
 1040         uint32_t total_recvs;
 1041         uint32_t local_tag;
 1042         uint32_t remote_tag;
 1043         uint32_t initial_tsn;
 1044         uint32_t highest_tsn;
 1045         uint32_t cumulative_tsn;
 1046         uint32_t cumulative_tsn_ack;
 1047         uint32_t mtu;
 1048         uint32_t refcnt;
 1049         uint16_t local_port;    /* sctpAssocEntry 3   */
 1050         uint16_t remote_port;   /* sctpAssocEntry 4   */
 1051         struct sctp_timeval start_time; /* sctpAssocEntry 16  */
 1052         struct sctp_timeval discontinuity_time; /* sctpAssocEntry 17  */
 1053         uint32_t peers_rwnd;
 1054         sctp_assoc_t assoc_id;  /* sctpAssocEntry 1   */
 1055         uint32_t extra_padding[32];     /* future */
 1056 };
 1057 
 1058 struct xsctp_laddr {
 1059         union sctp_sockstore address;   /* sctpAssocLocalAddrEntry 1/2 */
 1060         uint32_t last;
 1061         struct sctp_timeval start_time; /* sctpAssocLocalAddrEntry 3   */
 1062         uint32_t extra_padding[32];     /* future */
 1063 };
 1064 
 1065 struct xsctp_raddr {
 1066         union sctp_sockstore address;   /* sctpAssocLocalRemEntry 1/2 */
 1067         uint32_t last;
 1068         uint32_t rto;           /* sctpAssocLocalRemEntry 5   */
 1069         uint32_t max_path_rtx;  /* sctpAssocLocalRemEntry 6   */
 1070         uint32_t rtx;           /* sctpAssocLocalRemEntry 7   */
 1071         uint32_t error_counter; /* */
 1072         uint32_t cwnd;          /* */
 1073         uint32_t flight_size;   /* */
 1074         uint32_t mtu;           /* */
 1075         uint8_t active;         /* sctpAssocLocalRemEntry 3   */
 1076         uint8_t confirmed;      /* */
 1077         uint8_t heartbeat_enabled;      /* sctpAssocLocalRemEntry 4   */
 1078         struct sctp_timeval start_time; /* sctpAssocLocalRemEntry 8   */
 1079         uint32_t rtt;
 1080         uint32_t extra_padding[32];     /* future */
 1081 };
 1082 
 1083 #define SCTP_MAX_LOGGING_SIZE 30000
 1084 #define SCTP_TRACE_PARAMS 6     /* This number MUST be even   */
 1085 
 1086 struct sctp_log_entry {
 1087         uint64_t timestamp;
 1088         uint32_t subsys;
 1089         uint32_t padding;
 1090         uint32_t params[SCTP_TRACE_PARAMS];
 1091 };
 1092 
 1093 struct sctp_log {
 1094         struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
 1095         uint32_t index;
 1096         uint32_t padding;
 1097 };
 1098 
 1099 /*
 1100  * Kernel defined for sctp_send
 1101  */
 1102 #if defined(_KERNEL) || defined(__Userspace__)
 1103 int
 1104 sctp_lower_sosend(struct socket *so,
 1105     struct sockaddr *addr,
 1106     struct uio *uio,
 1107     struct mbuf *i_pak,
 1108     struct mbuf *control,
 1109     int flags,
 1110     struct sctp_sndrcvinfo *srcv
 1111     ,struct thread *p
 1112 );
 1113 
 1114 int
 1115 sctp_sorecvmsg(struct socket *so,
 1116     struct uio *uio,
 1117     struct mbuf **mp,
 1118     struct sockaddr *from,
 1119     int fromlen,
 1120     int *msg_flags,
 1121     struct sctp_sndrcvinfo *sinfo,
 1122     int filling_sinfo);
 1123 
 1124 #endif
 1125 
 1126 /*
 1127  * API system calls
 1128  */
 1129 #if !(defined(_KERNEL)) && !(defined(__Userspace__))
 1130 
 1131 __BEGIN_DECLS
 1132 int sctp_peeloff __P((int, sctp_assoc_t));
 1133 int sctp_bindx __P((int, struct sockaddr *, int, int));
 1134 int sctp_connectx __P((int, const struct sockaddr *, int, sctp_assoc_t *));
 1135 int sctp_getaddrlen __P((sa_family_t));
 1136 int sctp_getpaddrs __P((int, sctp_assoc_t, struct sockaddr **));
 1137 void sctp_freepaddrs __P((struct sockaddr *));
 1138 int sctp_getladdrs __P((int, sctp_assoc_t, struct sockaddr **));
 1139 void sctp_freeladdrs __P((struct sockaddr *));
 1140 int sctp_opt_info __P((int, sctp_assoc_t, int, void *, socklen_t *));
 1141 
 1142 ssize_t sctp_sendmsg 
 1143 __P((int, const void *, size_t,
 1144     const struct sockaddr *,
 1145     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
 1146 
 1147         ssize_t sctp_send __P((int sd, const void *msg, size_t len,
 1148               const struct sctp_sndrcvinfo *sinfo, int flags));
 1149 
 1150         ssize_t sctp_sendx __P((int sd, const void *msg, size_t len,
 1151                struct sockaddr *addrs, int addrcnt,
 1152                struct sctp_sndrcvinfo *sinfo, int flags));
 1153 
 1154         ssize_t sctp_sendmsgx __P((int sd, const void *, size_t,
 1155                   struct sockaddr *, int,
 1156                   uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
 1157 
 1158         sctp_assoc_t sctp_getassocid __P((int sd, struct sockaddr *sa));
 1159 
 1160         ssize_t sctp_recvmsg __P((int, void *, size_t, struct sockaddr *,
 1161                  socklen_t *, struct sctp_sndrcvinfo *, int *));
 1162 
 1163 __END_DECLS
 1164 
 1165 #endif                          /* !_KERNEL */
 1166 #endif                          /* !__sctp_uio_h__ */

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