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  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: head/sys/netinet/sctp_uio.h 269945 2014-08-13 15:50:16Z tuexen $");
   35 
   36 #ifndef _NETINET_SCTP_UIO_H_
   37 #define _NETINET_SCTP_UIO_H_
   38 
   39 
   40 #if ! defined(_KERNEL)
   41 #include <stdint.h>
   42 #endif
   43 #include <sys/types.h>
   44 #include <sys/socket.h>
   45 #include <netinet/in.h>
   46 
   47 typedef uint32_t sctp_assoc_t;
   48 
   49 #define SCTP_FUTURE_ASSOC  0
   50 #define SCTP_CURRENT_ASSOC 1
   51 #define SCTP_ALL_ASSOC     2
   52 
   53 struct sctp_event {
   54         sctp_assoc_t se_assoc_id;
   55         uint16_t se_type;
   56         uint8_t se_on;
   57 };
   58 
   59 /* Compatibility to previous define's */
   60 #define sctp_stream_reset_events sctp_stream_reset_event
   61 
   62 /* On/Off setup for subscription to events */
   63 struct sctp_event_subscribe {
   64         uint8_t sctp_data_io_event;
   65         uint8_t sctp_association_event;
   66         uint8_t sctp_address_event;
   67         uint8_t sctp_send_failure_event;
   68         uint8_t sctp_peer_error_event;
   69         uint8_t sctp_shutdown_event;
   70         uint8_t sctp_partial_delivery_event;
   71         uint8_t sctp_adaptation_layer_event;
   72         uint8_t sctp_authentication_event;
   73         uint8_t sctp_sender_dry_event;
   74         uint8_t sctp_stream_reset_event;
   75 };
   76 
   77 /* ancillary data types */
   78 #define SCTP_INIT       0x0001
   79 #define SCTP_SNDRCV     0x0002
   80 #define SCTP_EXTRCV     0x0003
   81 #define SCTP_SNDINFO    0x0004
   82 #define SCTP_RCVINFO    0x0005
   83 #define SCTP_NXTINFO    0x0006
   84 #define SCTP_PRINFO     0x0007
   85 #define SCTP_AUTHINFO   0x0008
   86 #define SCTP_DSTADDRV4  0x0009
   87 #define SCTP_DSTADDRV6  0x000a
   88 
   89 /*
   90  * ancillary data structures
   91  */
   92 struct sctp_initmsg {
   93         uint16_t sinit_num_ostreams;
   94         uint16_t sinit_max_instreams;
   95         uint16_t sinit_max_attempts;
   96         uint16_t sinit_max_init_timeo;
   97 };
   98 
   99 /* We add 96 bytes to the size of sctp_sndrcvinfo.
  100  * This makes the current structure 128 bytes long
  101  * which is nicely 64 bit aligned but also has room
  102  * for us to add more and keep ABI compatibility.
  103  * For example, already we have the sctp_extrcvinfo
  104  * when enabled which is 48 bytes.
  105  */
  106 
  107 /*
  108  * The assoc up needs a verfid
  109  * all sendrcvinfo's need a verfid for SENDING only.
  110  */
  111 
  112 
  113 #define SCTP_ALIGN_RESV_PAD 92
  114 #define SCTP_ALIGN_RESV_PAD_SHORT 76
  115 
  116 struct sctp_sndrcvinfo {
  117         uint16_t sinfo_stream;
  118         uint16_t sinfo_ssn;
  119         uint16_t sinfo_flags;
  120         uint32_t sinfo_ppid;
  121         uint32_t sinfo_context;
  122         uint32_t sinfo_timetolive;
  123         uint32_t sinfo_tsn;
  124         uint32_t sinfo_cumtsn;
  125         sctp_assoc_t sinfo_assoc_id;
  126         uint16_t sinfo_keynumber;
  127         uint16_t sinfo_keynumber_valid;
  128         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
  129 };
  130 
  131 struct sctp_extrcvinfo {
  132         uint16_t sinfo_stream;
  133         uint16_t sinfo_ssn;
  134         uint16_t sinfo_flags;
  135         uint32_t sinfo_ppid;
  136         uint32_t sinfo_context;
  137         uint32_t sinfo_timetolive;
  138         uint32_t sinfo_tsn;
  139         uint32_t sinfo_cumtsn;
  140         sctp_assoc_t sinfo_assoc_id;
  141         uint16_t sreinfo_next_flags;
  142         uint16_t sreinfo_next_stream;
  143         uint32_t sreinfo_next_aid;
  144         uint32_t sreinfo_next_length;
  145         uint32_t sreinfo_next_ppid;
  146         uint16_t sinfo_keynumber;
  147         uint16_t sinfo_keynumber_valid;
  148         uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
  149 };
  150 
  151 struct sctp_sndinfo {
  152         uint16_t snd_sid;
  153         uint16_t snd_flags;
  154         uint32_t snd_ppid;
  155         uint32_t snd_context;
  156         sctp_assoc_t snd_assoc_id;
  157 };
  158 
  159 struct sctp_prinfo {
  160         uint16_t pr_policy;
  161         uint32_t pr_value;
  162 };
  163 
  164 struct sctp_default_prinfo {
  165         uint16_t pr_policy;
  166         uint32_t pr_value;
  167         sctp_assoc_t pr_assoc_id;
  168 };
  169 
  170 struct sctp_authinfo {
  171         uint16_t auth_keynumber;
  172 };
  173 
  174 struct sctp_rcvinfo {
  175         uint16_t rcv_sid;
  176         uint16_t rcv_ssn;
  177         uint16_t rcv_flags;
  178         uint32_t rcv_ppid;
  179         uint32_t rcv_tsn;
  180         uint32_t rcv_cumtsn;
  181         uint32_t rcv_context;
  182         sctp_assoc_t rcv_assoc_id;
  183 };
  184 
  185 struct sctp_nxtinfo {
  186         uint16_t nxt_sid;
  187         uint16_t nxt_flags;
  188         uint32_t nxt_ppid;
  189         uint32_t nxt_length;
  190         sctp_assoc_t nxt_assoc_id;
  191 };
  192 
  193 #define SCTP_NO_NEXT_MSG           0x0000
  194 #define SCTP_NEXT_MSG_AVAIL        0x0001
  195 #define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
  196 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
  197 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
  198 
  199 struct sctp_recvv_rn {
  200         struct sctp_rcvinfo recvv_rcvinfo;
  201         struct sctp_nxtinfo recvv_nxtinfo;
  202 };
  203 
  204 #define SCTP_RECVV_NOINFO  0
  205 #define SCTP_RECVV_RCVINFO 1
  206 #define SCTP_RECVV_NXTINFO 2
  207 #define SCTP_RECVV_RN      3
  208 
  209 #define SCTP_SENDV_NOINFO   0
  210 #define SCTP_SENDV_SNDINFO  1
  211 #define SCTP_SENDV_PRINFO   2
  212 #define SCTP_SENDV_AUTHINFO 3
  213 #define SCTP_SENDV_SPA      4
  214 
  215 struct sctp_sendv_spa {
  216         uint32_t sendv_flags;
  217         struct sctp_sndinfo sendv_sndinfo;
  218         struct sctp_prinfo sendv_prinfo;
  219         struct sctp_authinfo sendv_authinfo;
  220 };
  221 
  222 #define SCTP_SEND_SNDINFO_VALID  0x00000001
  223 #define SCTP_SEND_PRINFO_VALID   0x00000002
  224 #define SCTP_SEND_AUTHINFO_VALID 0x00000004
  225 
  226 struct sctp_snd_all_completes {
  227         uint16_t sall_stream;
  228         uint16_t sall_flags;
  229         uint32_t sall_ppid;
  230         uint32_t sall_context;
  231         uint32_t sall_num_sent;
  232         uint32_t sall_num_failed;
  233 };
  234 
  235 /* Flags that go into the sinfo->sinfo_flags field */
  236 #define SCTP_NOTIFICATION     0x0010    /* next message is a notification */
  237 #define SCTP_COMPLETE         0x0020    /* next message is complete */
  238 #define SCTP_EOF              0x0100    /* Start shutdown procedures */
  239 #define SCTP_ABORT            0x0200    /* Send an ABORT to peer */
  240 #define SCTP_UNORDERED        0x0400    /* Message is un-ordered */
  241 #define SCTP_ADDR_OVER        0x0800    /* Override the primary-address */
  242 #define SCTP_SENDALL          0x1000    /* Send this on all associations */
  243 #define SCTP_EOR              0x2000    /* end of message signal */
  244 #define SCTP_SACK_IMMEDIATELY 0x4000    /* Set I-Bit */
  245 
  246 #define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \
  247                                     & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
  248                                         SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\
  249                                         SCTP_SACK_IMMEDIATELY)) != 0)
  250 /* for the endpoint */
  251 
  252 /* The lower four bits is an enumeration of PR-SCTP policies */
  253 #define SCTP_PR_SCTP_NONE 0x0000/* Reliable transfer */
  254 #define SCTP_PR_SCTP_TTL  0x0001/* Time based PR-SCTP */
  255 #define SCTP_PR_SCTP_BUF  0x0002/* Buffer based PR-SCTP */
  256 #define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
  257 #define SCTP_PR_SCTP_MAX  SCTP_PR_SCTP_RTX
  258 #define SCTP_PR_SCTP_ALL  0x000f/* Used for aggregated stats */
  259 
  260 #define PR_SCTP_POLICY(x)         ((x) & 0x0f)
  261 #define PR_SCTP_ENABLED(x)        ((PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) && \
  262                                    (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_ALL))
  263 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
  264 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
  265 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
  266 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_MAX)
  267 #define PR_SCTP_VALID_POLICY(x)   (PR_SCTP_POLICY(x) <= SCTP_PR_SCTP_MAX)
  268 
  269 /* Stat's */
  270 struct sctp_pcbinfo {
  271         uint32_t ep_count;
  272         uint32_t asoc_count;
  273         uint32_t laddr_count;
  274         uint32_t raddr_count;
  275         uint32_t chk_count;
  276         uint32_t readq_count;
  277         uint32_t free_chunks;
  278         uint32_t stream_oque;
  279 };
  280 
  281 struct sctp_sockstat {
  282         sctp_assoc_t ss_assoc_id;
  283         uint32_t ss_total_sndbuf;
  284         uint32_t ss_total_recv_buf;
  285 };
  286 
  287 /*
  288  * notification event structures
  289  */
  290 
  291 /*
  292  * association change event
  293  */
  294 struct sctp_assoc_change {
  295         uint16_t sac_type;
  296         uint16_t sac_flags;
  297         uint32_t sac_length;
  298         uint16_t sac_state;
  299         uint16_t sac_error;
  300         uint16_t sac_outbound_streams;
  301         uint16_t sac_inbound_streams;
  302         sctp_assoc_t sac_assoc_id;
  303         uint8_t sac_info[];
  304 };
  305 
  306 /* sac_state values */
  307 #define SCTP_COMM_UP            0x0001
  308 #define SCTP_COMM_LOST          0x0002
  309 #define SCTP_RESTART            0x0003
  310 #define SCTP_SHUTDOWN_COMP      0x0004
  311 #define SCTP_CANT_STR_ASSOC     0x0005
  312 
  313 /* sac_info values */
  314 #define SCTP_ASSOC_SUPPORTS_PR        0x01
  315 #define SCTP_ASSOC_SUPPORTS_AUTH      0x02
  316 #define SCTP_ASSOC_SUPPORTS_ASCONF    0x03
  317 #define SCTP_ASSOC_SUPPORTS_MULTIBUF  0x04
  318 #define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05
  319 #define SCTP_ASSOC_SUPPORTS_MAX       0x05
  320 /*
  321  * Address event
  322  */
  323 struct sctp_paddr_change {
  324         uint16_t spc_type;
  325         uint16_t spc_flags;
  326         uint32_t spc_length;
  327         struct sockaddr_storage spc_aaddr;
  328         uint32_t spc_state;
  329         uint32_t spc_error;
  330         sctp_assoc_t spc_assoc_id;
  331 };
  332 
  333 /* paddr state values */
  334 #define SCTP_ADDR_AVAILABLE     0x0001
  335 #define SCTP_ADDR_UNREACHABLE   0x0002
  336 #define SCTP_ADDR_REMOVED       0x0003
  337 #define SCTP_ADDR_ADDED         0x0004
  338 #define SCTP_ADDR_MADE_PRIM     0x0005
  339 #define SCTP_ADDR_CONFIRMED     0x0006
  340 
  341 #define SCTP_ACTIVE             0x0001  /* SCTP_ADDR_REACHABLE */
  342 #define SCTP_INACTIVE           0x0002  /* neither SCTP_ADDR_REACHABLE nor
  343                                          * SCTP_ADDR_UNCONFIRMED */
  344 #define SCTP_UNCONFIRMED        0x0200  /* SCTP_ADDR_UNCONFIRMED */
  345 
  346 /* remote error events */
  347 struct sctp_remote_error {
  348         uint16_t sre_type;
  349         uint16_t sre_flags;
  350         uint32_t sre_length;
  351         uint16_t sre_error;
  352         sctp_assoc_t sre_assoc_id;
  353         uint8_t sre_data[];
  354 };
  355 
  356 /* data send failure event (deprecated) */
  357 struct sctp_send_failed {
  358         uint16_t ssf_type;
  359         uint16_t ssf_flags;
  360         uint32_t ssf_length;
  361         uint32_t ssf_error;
  362         struct sctp_sndrcvinfo ssf_info;
  363         sctp_assoc_t ssf_assoc_id;
  364         uint8_t ssf_data[];
  365 };
  366 
  367 /* data send failure event (not deprecated) */
  368 struct sctp_send_failed_event {
  369         uint16_t ssfe_type;
  370         uint16_t ssfe_flags;
  371         uint32_t ssfe_length;
  372         uint32_t ssfe_error;
  373         struct sctp_sndinfo ssfe_info;
  374         sctp_assoc_t ssfe_assoc_id;
  375         uint8_t ssfe_data[];
  376 };
  377 
  378 /* flag that indicates state of data */
  379 #define SCTP_DATA_UNSENT        0x0001  /* inqueue never on wire */
  380 #define SCTP_DATA_SENT          0x0002  /* on wire at failure */
  381 
  382 /* shutdown event */
  383 struct sctp_shutdown_event {
  384         uint16_t sse_type;
  385         uint16_t sse_flags;
  386         uint32_t sse_length;
  387         sctp_assoc_t sse_assoc_id;
  388 };
  389 
  390 /* Adaptation layer indication stuff */
  391 struct sctp_adaptation_event {
  392         uint16_t sai_type;
  393         uint16_t sai_flags;
  394         uint32_t sai_length;
  395         uint32_t sai_adaptation_ind;
  396         sctp_assoc_t sai_assoc_id;
  397 };
  398 
  399 struct sctp_setadaptation {
  400         uint32_t ssb_adaptation_ind;
  401 };
  402 
  403 /* compatible old spelling */
  404 struct sctp_adaption_event {
  405         uint16_t sai_type;
  406         uint16_t sai_flags;
  407         uint32_t sai_length;
  408         uint32_t sai_adaption_ind;
  409         sctp_assoc_t sai_assoc_id;
  410 };
  411 
  412 struct sctp_setadaption {
  413         uint32_t ssb_adaption_ind;
  414 };
  415 
  416 
  417 /*
  418  * Partial Delivery API event
  419  */
  420 struct sctp_pdapi_event {
  421         uint16_t pdapi_type;
  422         uint16_t pdapi_flags;
  423         uint32_t pdapi_length;
  424         uint32_t pdapi_indication;
  425         uint16_t pdapi_stream;
  426         uint16_t pdapi_seq;
  427         sctp_assoc_t pdapi_assoc_id;
  428 };
  429 
  430 /* indication values */
  431 #define SCTP_PARTIAL_DELIVERY_ABORTED   0x0001
  432 
  433 
  434 /*
  435  * authentication key event
  436  */
  437 struct sctp_authkey_event {
  438         uint16_t auth_type;
  439         uint16_t auth_flags;
  440         uint32_t auth_length;
  441         uint16_t auth_keynumber;
  442         uint16_t auth_altkeynumber;
  443         uint32_t auth_indication;
  444         sctp_assoc_t auth_assoc_id;
  445 };
  446 
  447 /* indication values */
  448 #define SCTP_AUTH_NEW_KEY       0x0001
  449 #define SCTP_AUTH_NEWKEY        SCTP_AUTH_NEW_KEY
  450 #define SCTP_AUTH_NO_AUTH       0x0002
  451 #define SCTP_AUTH_FREE_KEY      0x0003
  452 
  453 
  454 struct sctp_sender_dry_event {
  455         uint16_t sender_dry_type;
  456         uint16_t sender_dry_flags;
  457         uint32_t sender_dry_length;
  458         sctp_assoc_t sender_dry_assoc_id;
  459 };
  460 
  461 
  462 /*
  463  * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
  464  */
  465 struct sctp_stream_reset_event {
  466         uint16_t strreset_type;
  467         uint16_t strreset_flags;
  468         uint32_t strreset_length;
  469         sctp_assoc_t strreset_assoc_id;
  470         uint16_t strreset_stream_list[];
  471 };
  472 
  473 /* flags in stream_reset_event (strreset_flags) */
  474 #define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
  475 #define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
  476 #define SCTP_STREAM_RESET_DENIED        0x0004
  477 #define SCTP_STREAM_RESET_FAILED        0x0008
  478 
  479 /*
  480  * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
  481  */
  482 struct sctp_assoc_reset_event {
  483         uint16_t assocreset_type;
  484         uint16_t assocreset_flags;
  485         uint32_t assocreset_length;
  486         sctp_assoc_t assocreset_assoc_id;
  487         uint32_t assocreset_local_tsn;
  488         uint32_t assocreset_remote_tsn;
  489 };
  490 
  491 #define SCTP_ASSOC_RESET_DENIED         0x0004
  492 #define SCTP_ASSOC_RESET_FAILED         0x0008
  493 
  494 /*
  495  * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
  496  */
  497 struct sctp_stream_change_event {
  498         uint16_t strchange_type;
  499         uint16_t strchange_flags;
  500         uint32_t strchange_length;
  501         sctp_assoc_t strchange_assoc_id;
  502         uint16_t strchange_instrms;
  503         uint16_t strchange_outstrms;
  504 };
  505 
  506 #define SCTP_STREAM_CHANGE_DENIED       0x0004
  507 #define SCTP_STREAM_CHANGE_FAILED       0x0008
  508 
  509 
  510 /* SCTP notification event */
  511 struct sctp_tlv {
  512         uint16_t sn_type;
  513         uint16_t sn_flags;
  514         uint32_t sn_length;
  515 };
  516 
  517 union sctp_notification {
  518         struct sctp_tlv sn_header;
  519         struct sctp_assoc_change sn_assoc_change;
  520         struct sctp_paddr_change sn_paddr_change;
  521         struct sctp_remote_error sn_remote_error;
  522         struct sctp_send_failed sn_send_failed;
  523         struct sctp_shutdown_event sn_shutdown_event;
  524         struct sctp_adaptation_event sn_adaptation_event;
  525         /* compatibility same as above */
  526         struct sctp_adaption_event sn_adaption_event;
  527         struct sctp_pdapi_event sn_pdapi_event;
  528         struct sctp_authkey_event sn_auth_event;
  529         struct sctp_sender_dry_event sn_sender_dry_event;
  530         struct sctp_send_failed_event sn_send_failed_event;
  531         struct sctp_stream_reset_event sn_strreset_event;
  532         struct sctp_assoc_reset_event sn_assocreset_event;
  533         struct sctp_stream_change_event sn_strchange_event;
  534 };
  535 
  536 /* notification types */
  537 #define SCTP_ASSOC_CHANGE                       0x0001
  538 #define SCTP_PEER_ADDR_CHANGE                   0x0002
  539 #define SCTP_REMOTE_ERROR                       0x0003
  540 #define SCTP_SEND_FAILED                        0x0004
  541 #define SCTP_SHUTDOWN_EVENT                     0x0005
  542 #define SCTP_ADAPTATION_INDICATION              0x0006
  543 /* same as above */
  544 #define SCTP_ADAPTION_INDICATION                0x0006
  545 #define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
  546 #define SCTP_AUTHENTICATION_EVENT               0x0008
  547 #define SCTP_STREAM_RESET_EVENT                 0x0009
  548 #define SCTP_SENDER_DRY_EVENT                   0x000a
  549 #define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b  /* we don't send this */
  550 #define SCTP_ASSOC_RESET_EVENT                  0x000c
  551 #define SCTP_STREAM_CHANGE_EVENT                0x000d
  552 #define SCTP_SEND_FAILED_EVENT                  0x000e
  553 /*
  554  * socket option structs
  555  */
  556 
  557 struct sctp_paddrparams {
  558         struct sockaddr_storage spp_address;
  559         sctp_assoc_t spp_assoc_id;
  560         uint32_t spp_hbinterval;
  561         uint32_t spp_pathmtu;
  562         uint32_t spp_flags;
  563         uint32_t spp_ipv6_flowlabel;
  564         uint16_t spp_pathmaxrxt;
  565         uint8_t spp_dscp;
  566 };
  567 
  568 #define spp_ipv4_tos spp_dscp
  569 
  570 #define SPP_HB_ENABLE           0x00000001
  571 #define SPP_HB_DISABLE          0x00000002
  572 #define SPP_HB_DEMAND           0x00000004
  573 #define SPP_PMTUD_ENABLE        0x00000008
  574 #define SPP_PMTUD_DISABLE       0x00000010
  575 #define SPP_HB_TIME_IS_ZERO     0x00000080
  576 #define SPP_IPV6_FLOWLABEL      0x00000100
  577 #define SPP_DSCP                0x00000200
  578 #define SPP_IPV4_TOS            SPP_DSCP
  579 
  580 struct sctp_paddrthlds {
  581         struct sockaddr_storage spt_address;
  582         sctp_assoc_t spt_assoc_id;
  583         uint16_t spt_pathmaxrxt;
  584         uint16_t spt_pathpfthld;
  585 };
  586 
  587 struct sctp_paddrinfo {
  588         struct sockaddr_storage spinfo_address;
  589         sctp_assoc_t spinfo_assoc_id;
  590         int32_t spinfo_state;
  591         uint32_t spinfo_cwnd;
  592         uint32_t spinfo_srtt;
  593         uint32_t spinfo_rto;
  594         uint32_t spinfo_mtu;
  595 };
  596 
  597 struct sctp_rtoinfo {
  598         sctp_assoc_t srto_assoc_id;
  599         uint32_t srto_initial;
  600         uint32_t srto_max;
  601         uint32_t srto_min;
  602 };
  603 
  604 struct sctp_assocparams {
  605         sctp_assoc_t sasoc_assoc_id;
  606         uint32_t sasoc_peer_rwnd;
  607         uint32_t sasoc_local_rwnd;
  608         uint32_t sasoc_cookie_life;
  609         uint16_t sasoc_asocmaxrxt;
  610         uint16_t sasoc_number_peer_destinations;
  611 };
  612 
  613 struct sctp_setprim {
  614         struct sockaddr_storage ssp_addr;
  615         sctp_assoc_t ssp_assoc_id;
  616         uint8_t ssp_padding[4];
  617 };
  618 
  619 struct sctp_setpeerprim {
  620         struct sockaddr_storage sspp_addr;
  621         sctp_assoc_t sspp_assoc_id;
  622         uint8_t sspp_padding[4];
  623 };
  624 
  625 struct sctp_getaddresses {
  626         sctp_assoc_t sget_assoc_id;
  627         /* addr is filled in for N * sockaddr_storage */
  628         struct sockaddr addr[1];
  629 };
  630 
  631 struct sctp_status {
  632         sctp_assoc_t sstat_assoc_id;
  633         int32_t sstat_state;
  634         uint32_t sstat_rwnd;
  635         uint16_t sstat_unackdata;
  636         uint16_t sstat_penddata;
  637         uint16_t sstat_instrms;
  638         uint16_t sstat_outstrms;
  639         uint32_t sstat_fragmentation_point;
  640         struct sctp_paddrinfo sstat_primary;
  641 };
  642 
  643 /*
  644  * AUTHENTICATION support
  645  */
  646 /* SCTP_AUTH_CHUNK */
  647 struct sctp_authchunk {
  648         uint8_t sauth_chunk;
  649 };
  650 
  651 /* SCTP_AUTH_KEY */
  652 struct sctp_authkey {
  653         sctp_assoc_t sca_assoc_id;
  654         uint16_t sca_keynumber;
  655         uint16_t sca_keylength;
  656         uint8_t sca_key[];
  657 };
  658 
  659 /* SCTP_HMAC_IDENT */
  660 struct sctp_hmacalgo {
  661         uint32_t shmac_number_of_idents;
  662         uint16_t shmac_idents[];
  663 };
  664 
  665 /* AUTH hmac_id */
  666 #define SCTP_AUTH_HMAC_ID_RSVD          0x0000
  667 #define SCTP_AUTH_HMAC_ID_SHA1          0x0001  /* default, mandatory */
  668 #define SCTP_AUTH_HMAC_ID_SHA256        0x0003
  669 
  670 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
  671 struct sctp_authkeyid {
  672         sctp_assoc_t scact_assoc_id;
  673         uint16_t scact_keynumber;
  674 };
  675 
  676 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
  677 struct sctp_authchunks {
  678         sctp_assoc_t gauth_assoc_id;
  679         uint32_t gauth_number_of_chunks;
  680         uint8_t gauth_chunks[];
  681 };
  682 
  683 struct sctp_assoc_value {
  684         sctp_assoc_t assoc_id;
  685         uint32_t assoc_value;
  686 };
  687 
  688 struct sctp_cc_option {
  689         int option;
  690         struct sctp_assoc_value aid_value;
  691 };
  692 
  693 struct sctp_stream_value {
  694         sctp_assoc_t assoc_id;
  695         uint16_t stream_id;
  696         uint16_t stream_value;
  697 };
  698 
  699 struct sctp_assoc_ids {
  700         uint32_t gaids_number_of_ids;
  701         sctp_assoc_t gaids_assoc_id[];
  702 };
  703 
  704 struct sctp_sack_info {
  705         sctp_assoc_t sack_assoc_id;
  706         uint32_t sack_delay;
  707         uint32_t sack_freq;
  708 };
  709 
  710 struct sctp_timeouts {
  711         sctp_assoc_t stimo_assoc_id;
  712         uint32_t stimo_init;
  713         uint32_t stimo_data;
  714         uint32_t stimo_sack;
  715         uint32_t stimo_shutdown;
  716         uint32_t stimo_heartbeat;
  717         uint32_t stimo_cookie;
  718         uint32_t stimo_shutdownack;
  719 };
  720 
  721 struct sctp_udpencaps {
  722         struct sockaddr_storage sue_address;
  723         sctp_assoc_t sue_assoc_id;
  724         uint16_t sue_port;
  725 };
  726 
  727 struct sctp_prstatus {
  728         sctp_assoc_t sprstat_assoc_id;
  729         uint16_t sprstat_sid;
  730         uint16_t sprstat_policy;
  731         uint64_t sprstat_abandoned_unsent;
  732         uint64_t sprstat_abandoned_sent;
  733 };
  734 
  735 struct sctp_cwnd_args {
  736         struct sctp_nets *net;  /* network to *//* FIXME: LP64 issue */
  737         uint32_t cwnd_new_value;/* cwnd in k */
  738         uint32_t pseudo_cumack;
  739         uint16_t inflight;      /* flightsize in k */
  740         uint16_t cwnd_augment;  /* increment to it */
  741         uint8_t meets_pseudo_cumack;
  742         uint8_t need_new_pseudo_cumack;
  743         uint8_t cnt_in_send;
  744         uint8_t cnt_in_str;
  745 };
  746 
  747 struct sctp_blk_args {
  748         uint32_t onsb;          /* in 1k bytes */
  749         uint32_t sndlen;        /* len of send being attempted */
  750         uint32_t peer_rwnd;     /* rwnd of peer */
  751         uint16_t send_sent_qcnt;/* chnk cnt */
  752         uint16_t stream_qcnt;   /* chnk cnt */
  753         uint16_t chunks_on_oque;/* chunks out */
  754         uint16_t flight_size;   /* flight size in k */
  755 };
  756 
  757 /*
  758  * Max we can reset in one setting, note this is dictated not by the define
  759  * but the size of a mbuf cluster so don't change this define and think you
  760  * can specify more. You must do multiple resets if you want to reset more
  761  * than SCTP_MAX_EXPLICIT_STR_RESET.
  762  */
  763 #define SCTP_MAX_EXPLICT_STR_RESET   1000
  764 
  765 struct sctp_reset_streams {
  766         sctp_assoc_t srs_assoc_id;
  767         uint16_t srs_flags;
  768         uint16_t srs_number_streams;    /* 0 == ALL */
  769         uint16_t srs_stream_list[];     /* list if strrst_num_streams is not 0 */
  770 };
  771 
  772 struct sctp_add_streams {
  773         sctp_assoc_t sas_assoc_id;
  774         uint16_t sas_instrms;
  775         uint16_t sas_outstrms;
  776 };
  777 
  778 struct sctp_get_nonce_values {
  779         sctp_assoc_t gn_assoc_id;
  780         uint32_t gn_peers_tag;
  781         uint32_t gn_local_tag;
  782 };
  783 
  784 /* Debugging logs */
  785 struct sctp_str_log {
  786         void *stcb;             /* FIXME: LP64 issue */
  787         uint32_t n_tsn;
  788         uint32_t e_tsn;
  789         uint16_t n_sseq;
  790         uint16_t e_sseq;
  791         uint16_t strm;
  792 };
  793 
  794 struct sctp_sb_log {
  795         void *stcb;             /* FIXME: LP64 issue */
  796         uint32_t so_sbcc;
  797         uint32_t stcb_sbcc;
  798         uint32_t incr;
  799 };
  800 
  801 struct sctp_fr_log {
  802         uint32_t largest_tsn;
  803         uint32_t largest_new_tsn;
  804         uint32_t tsn;
  805 };
  806 
  807 struct sctp_fr_map {
  808         uint32_t base;
  809         uint32_t cum;
  810         uint32_t high;
  811 };
  812 
  813 struct sctp_rwnd_log {
  814         uint32_t rwnd;
  815         uint32_t send_size;
  816         uint32_t overhead;
  817         uint32_t new_rwnd;
  818 };
  819 
  820 struct sctp_mbcnt_log {
  821         uint32_t total_queue_size;
  822         uint32_t size_change;
  823         uint32_t total_queue_mb_size;
  824         uint32_t mbcnt_change;
  825 };
  826 
  827 struct sctp_sack_log {
  828         uint32_t cumack;
  829         uint32_t oldcumack;
  830         uint32_t tsn;
  831         uint16_t numGaps;
  832         uint16_t numDups;
  833 };
  834 
  835 struct sctp_lock_log {
  836         void *sock;             /* FIXME: LP64 issue */
  837         void *inp;              /* FIXME: LP64 issue */
  838         uint8_t tcb_lock;
  839         uint8_t inp_lock;
  840         uint8_t info_lock;
  841         uint8_t sock_lock;
  842         uint8_t sockrcvbuf_lock;
  843         uint8_t socksndbuf_lock;
  844         uint8_t create_lock;
  845         uint8_t resv;
  846 };
  847 
  848 struct sctp_rto_log {
  849         void *net;              /* FIXME: LP64 issue */
  850         uint32_t rtt;
  851 };
  852 
  853 struct sctp_nagle_log {
  854         void *stcb;             /* FIXME: LP64 issue */
  855         uint32_t total_flight;
  856         uint32_t total_in_queue;
  857         uint16_t count_in_queue;
  858         uint16_t count_in_flight;
  859 };
  860 
  861 struct sctp_sbwake_log {
  862         void *stcb;             /* FIXME: LP64 issue */
  863         uint16_t send_q;
  864         uint16_t sent_q;
  865         uint16_t flight;
  866         uint16_t wake_cnt;
  867         uint8_t stream_qcnt;    /* chnk cnt */
  868         uint8_t chunks_on_oque; /* chunks out */
  869         uint8_t sbflags;
  870         uint8_t sctpflags;
  871 };
  872 
  873 struct sctp_misc_info {
  874         uint32_t log1;
  875         uint32_t log2;
  876         uint32_t log3;
  877         uint32_t log4;
  878 };
  879 
  880 struct sctp_log_closing {
  881         void *inp;              /* FIXME: LP64 issue */
  882         void *stcb;             /* FIXME: LP64 issue */
  883         uint32_t sctp_flags;
  884         uint16_t state;
  885         int16_t loc;
  886 };
  887 
  888 struct sctp_mbuf_log {
  889         struct mbuf *mp;        /* FIXME: LP64 issue */
  890         caddr_t ext;
  891         caddr_t data;
  892         uint16_t size;
  893         uint8_t refcnt;
  894         uint8_t mbuf_flags;
  895 };
  896 
  897 struct sctp_cwnd_log {
  898         uint64_t time_event;
  899         uint8_t from;
  900         uint8_t event_type;
  901         uint8_t resv[2];
  902         union {
  903                 struct sctp_log_closing close;
  904                 struct sctp_blk_args blk;
  905                 struct sctp_cwnd_args cwnd;
  906                 struct sctp_str_log strlog;
  907                 struct sctp_fr_log fr;
  908                 struct sctp_fr_map map;
  909                 struct sctp_rwnd_log rwnd;
  910                 struct sctp_mbcnt_log mbcnt;
  911                 struct sctp_sack_log sack;
  912                 struct sctp_lock_log lock;
  913                 struct sctp_rto_log rto;
  914                 struct sctp_sb_log sb;
  915                 struct sctp_nagle_log nagle;
  916                 struct sctp_sbwake_log wake;
  917                 struct sctp_mbuf_log mb;
  918                 struct sctp_misc_info misc;
  919         }     x;
  920 };
  921 
  922 struct sctp_cwnd_log_req {
  923         int32_t num_in_log;     /* Number in log */
  924         int32_t num_ret;        /* Number returned */
  925         int32_t start_at;       /* start at this one */
  926         int32_t end_at;         /* end at this one */
  927         struct sctp_cwnd_log log[];
  928 };
  929 
  930 struct sctp_timeval {
  931         uint32_t tv_sec;
  932         uint32_t tv_usec;
  933 };
  934 
  935 struct sctpstat {
  936         struct sctp_timeval sctps_discontinuitytime;    /* sctpStats 18
  937                                                          * (TimeStamp) */
  938         /* MIB according to RFC 3873 */
  939         uint32_t sctps_currestab;       /* sctpStats  1   (Gauge32) */
  940         uint32_t sctps_activeestab;     /* sctpStats  2 (Counter32) */
  941         uint32_t sctps_restartestab;
  942         uint32_t sctps_collisionestab;
  943         uint32_t sctps_passiveestab;    /* sctpStats  3 (Counter32) */
  944         uint32_t sctps_aborted; /* sctpStats  4 (Counter32) */
  945         uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
  946         uint32_t sctps_outoftheblue;    /* sctpStats  6 (Counter32) */
  947         uint32_t sctps_checksumerrors;  /* sctpStats  7 (Counter32) */
  948         uint32_t sctps_outcontrolchunks;        /* sctpStats  8 (Counter64) */
  949         uint32_t sctps_outorderchunks;  /* sctpStats  9 (Counter64) */
  950         uint32_t sctps_outunorderchunks;        /* sctpStats 10 (Counter64) */
  951         uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */
  952         uint32_t sctps_inorderchunks;   /* sctpStats 12 (Counter64) */
  953         uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */
  954         uint32_t sctps_fragusrmsgs;     /* sctpStats 14 (Counter64) */
  955         uint32_t sctps_reasmusrmsgs;    /* sctpStats 15 (Counter64) */
  956         uint32_t sctps_outpackets;      /* sctpStats 16 (Counter64) */
  957         uint32_t sctps_inpackets;       /* sctpStats 17 (Counter64) */
  958 
  959         /* input statistics: */
  960         uint32_t sctps_recvpackets;     /* total input packets        */
  961         uint32_t sctps_recvdatagrams;   /* total input datagrams      */
  962         uint32_t sctps_recvpktwithdata; /* total packets that had data */
  963         uint32_t sctps_recvsacks;       /* total input SACK chunks    */
  964         uint32_t sctps_recvdata;/* total input DATA chunks    */
  965         uint32_t sctps_recvdupdata;     /* total input duplicate DATA chunks */
  966         uint32_t sctps_recvheartbeat;   /* total input HB chunks      */
  967         uint32_t sctps_recvheartbeatack;        /* total input HB-ACK chunks  */
  968         uint32_t sctps_recvecne;/* total input ECNE chunks    */
  969         uint32_t sctps_recvauth;/* total input AUTH chunks    */
  970         uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */
  971         uint32_t sctps_recvivalhmacid;  /* total number of invalid HMAC ids
  972                                          * received */
  973         uint32_t sctps_recvivalkeyid;   /* total number of invalid secret ids
  974                                          * received */
  975         uint32_t sctps_recvauthfailed;  /* total number of auth failed */
  976         uint32_t sctps_recvexpress;     /* total fast path receives all one
  977                                          * chunk */
  978         uint32_t sctps_recvexpressm;    /* total fast path multi-part data */
  979         uint32_t sctps_recvnocrc;
  980         uint32_t sctps_recvswcrc;
  981         uint32_t sctps_recvhwcrc;
  982 
  983         /* output statistics: */
  984         uint32_t sctps_sendpackets;     /* total output packets       */
  985         uint32_t sctps_sendsacks;       /* total output SACKs         */
  986         uint32_t sctps_senddata;/* total output DATA chunks   */
  987         uint32_t sctps_sendretransdata; /* total output retransmitted DATA
  988                                          * chunks */
  989         uint32_t sctps_sendfastretrans; /* total output fast retransmitted
  990                                          * DATA chunks */
  991         uint32_t sctps_sendmultfastretrans;     /* total FR's that happened
  992                                                  * more than once to same
  993                                                  * chunk (u-del multi-fr
  994                                                  * algo). */
  995         uint32_t sctps_sendheartbeat;   /* total output HB chunks     */
  996         uint32_t sctps_sendecne;/* total output ECNE chunks    */
  997         uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
  998         uint32_t sctps_senderrors;      /* ip_output error counter */
  999         uint32_t sctps_sendnocrc;
 1000         uint32_t sctps_sendswcrc;
 1001         uint32_t sctps_sendhwcrc;
 1002         /* PCKDROPREP statistics: */
 1003         uint32_t sctps_pdrpfmbox;       /* Packet drop from middle box */
 1004         uint32_t sctps_pdrpfehos;       /* P-drop from end host */
 1005         uint32_t sctps_pdrpmbda;/* P-drops with data */
 1006         uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
 1007         uint32_t sctps_pdrpbwrpt;       /* P-drop, non-endhost, bandwidth rep
 1008                                          * only */
 1009         uint32_t sctps_pdrpcrupt;       /* P-drop, not enough for chunk header */
 1010         uint32_t sctps_pdrpnedat;       /* P-drop, not enough data to confirm */
 1011         uint32_t sctps_pdrppdbrk;       /* P-drop, where process_chunk_drop
 1012                                          * said break */
 1013         uint32_t sctps_pdrptsnnf;       /* P-drop, could not find TSN */
 1014         uint32_t sctps_pdrpdnfnd;       /* P-drop, attempt reverse TSN lookup */
 1015         uint32_t sctps_pdrpdiwnp;       /* P-drop, e-host confirms zero-rwnd */
 1016         uint32_t sctps_pdrpdizrw;       /* P-drop, midbox confirms no space */
 1017         uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
 1018         uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
 1019         /* timeouts */
 1020         uint32_t sctps_timoiterator;    /* Number of iterator timers that
 1021                                          * fired */
 1022         uint32_t sctps_timodata;/* Number of T3 data time outs */
 1023         uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers
 1024                                          * that fired */
 1025         uint32_t sctps_timoinit;/* Number of INIT timers that fired */
 1026         uint32_t sctps_timosack;/* Number of sack timers that fired */
 1027         uint32_t sctps_timoshutdown;    /* Number of shutdown timers that
 1028                                          * fired */
 1029         uint32_t sctps_timoheartbeat;   /* Number of heartbeat timers that
 1030                                          * fired */
 1031         uint32_t sctps_timocookie;      /* Number of times a cookie timeout
 1032                                          * fired */
 1033         uint32_t sctps_timosecret;      /* Number of times an endpoint changed
 1034                                          * its cookie secret */
 1035         uint32_t sctps_timopathmtu;     /* Number of PMTU timers that fired */
 1036         uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that
 1037                                          * fired */
 1038         uint32_t sctps_timoshutdownguard;       /* Number of shutdown guard
 1039                                                  * timers that fired */
 1040         uint32_t sctps_timostrmrst;     /* Number of stream reset timers that
 1041                                          * fired */
 1042         uint32_t sctps_timoearlyfr;     /* Number of early FR timers that
 1043                                          * fired */
 1044         uint32_t sctps_timoasconf;      /* Number of times an asconf timer
 1045                                          * fired */
 1046         uint32_t sctps_timodelprim;     /* Number of times a prim_deleted
 1047                                          * timer fired */
 1048         uint32_t sctps_timoautoclose;   /* Number of times auto close timer
 1049                                          * fired */
 1050         uint32_t sctps_timoassockill;   /* Number of asoc free timers expired */
 1051         uint32_t sctps_timoinpkill;     /* Number of inp free timers expired */
 1052         /* former early FR counters */
 1053         uint32_t sctps_spare[11];
 1054         /* others */
 1055         uint32_t sctps_hdrops;  /* packet shorter than header */
 1056         uint32_t sctps_badsum;  /* checksum error             */
 1057         uint32_t sctps_noport;  /* no endpoint for port       */
 1058         uint32_t sctps_badvtag; /* bad v-tag                  */
 1059         uint32_t sctps_badsid;  /* bad SID                    */
 1060         uint32_t sctps_nomem;   /* no memory                  */
 1061         uint32_t sctps_fastretransinrtt;        /* number of multiple FR in a
 1062                                                  * RTT window */
 1063         uint32_t sctps_markedretrans;
 1064         uint32_t sctps_naglesent;       /* nagle allowed sending      */
 1065         uint32_t sctps_naglequeued;     /* nagle doesn't allow sending */
 1066         uint32_t sctps_maxburstqueued;  /* max burst doesn't allow sending */
 1067         uint32_t sctps_ifnomemqueued;   /* look ahead tells us no memory in
 1068                                          * interface ring buffer OR we had a
 1069                                          * send error and are queuing one
 1070                                          * send. */
 1071         uint32_t sctps_windowprobed;    /* total number of window probes sent */
 1072         uint32_t sctps_lowlevelerr;     /* total times an output error causes
 1073                                          * us to clamp down on next user send. */
 1074         uint32_t sctps_lowlevelerrusr;  /* total times sctp_senderrors were
 1075                                          * caused from a user send from a user
 1076                                          * invoked send not a sack response */
 1077         uint32_t sctps_datadropchklmt;  /* Number of in data drops due to
 1078                                          * chunk limit reached */
 1079         uint32_t sctps_datadroprwnd;    /* Number of in data drops due to rwnd
 1080                                          * limit reached */
 1081         uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the
 1082                                          * cwnd */
 1083         uint32_t sctps_vtagexpress;     /* Used express lookup via vtag */
 1084         uint32_t sctps_vtagbogus;       /* Collision in express lookup. */
 1085         uint32_t sctps_primary_randry;  /* Number of times the sender ran dry
 1086                                          * of user data on primary */
 1087         uint32_t sctps_cmt_randry;      /* Same for above */
 1088         uint32_t sctps_slowpath_sack;   /* Sacks the slow way */
 1089         uint32_t sctps_wu_sacks_sent;   /* Window Update only sacks sent */
 1090         uint32_t sctps_sends_with_flags;        /* number of sends with
 1091                                                  * sinfo_flags !=0 */
 1092         uint32_t sctps_sends_with_unord;        /* number of unordered sends */
 1093         uint32_t sctps_sends_with_eof;  /* number of sends with EOF flag set */
 1094         uint32_t sctps_sends_with_abort;        /* number of sends with ABORT
 1095                                                  * flag set */
 1096         uint32_t sctps_protocol_drain_calls;    /* number of times protocol
 1097                                                  * drain called */
 1098         uint32_t sctps_protocol_drains_done;    /* number of times we did a
 1099                                                  * protocol drain */
 1100         uint32_t sctps_read_peeks;      /* Number of times recv was called
 1101                                          * with peek */
 1102         uint32_t sctps_cached_chk;      /* Number of cached chunks used */
 1103         uint32_t sctps_cached_strmoq;   /* Number of cached stream oq's used */
 1104         uint32_t sctps_left_abandon;    /* Number of unread messages abandoned
 1105                                          * by close */
 1106         uint32_t sctps_send_burst_avoid;        /* Unused */
 1107         uint32_t sctps_send_cwnd_avoid; /* Send cwnd full  avoidance, already
 1108                                          * max burst inflight to net */
 1109         uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via
 1110                                          * fwd-tsn's */
 1111         uint32_t sctps_queue_upd_ecne;  /* Number of times we queued or
 1112                                          * updated an ECN chunk on send queue */
 1113         uint32_t sctps_reserved[31];    /* Future ABI compat - remove int's
 1114                                          * from here when adding new */
 1115 };
 1116 
 1117 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
 1118 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
 1119 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
 1120 #define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
 1121 #define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
 1122 #else
 1123 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
 1124 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
 1125 #endif
 1126 /* The following macros are for handling MIB values, */
 1127 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
 1128 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
 1129 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
 1130 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
 1131 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
 1132 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
 1133 
 1134 union sctp_sockstore {
 1135         struct sockaddr_in sin;
 1136         struct sockaddr_in6 sin6;
 1137         struct sockaddr sa;
 1138 };
 1139 
 1140 
 1141 /***********************************/
 1142 /* And something for us old timers */
 1143 /***********************************/
 1144 
 1145 #ifndef ntohll
 1146 #include <sys/endian.h>
 1147 #define ntohll(x) be64toh(x)
 1148 #endif
 1149 
 1150 #ifndef htonll
 1151 #include <sys/endian.h>
 1152 #define htonll(x) htobe64(x)
 1153 #endif
 1154 /***********************************/
 1155 
 1156 
 1157 struct xsctp_inpcb {
 1158         uint32_t last;
 1159         uint32_t flags;
 1160         uint64_t features;
 1161         uint32_t total_sends;
 1162         uint32_t total_recvs;
 1163         uint32_t total_nospaces;
 1164         uint32_t fragmentation_point;
 1165         uint16_t local_port;
 1166         uint16_t qlen;
 1167         uint16_t maxqlen;
 1168         uint32_t extra_padding[31];     /* future */
 1169 };
 1170 
 1171 struct xsctp_tcb {
 1172         union sctp_sockstore primary_addr;      /* sctpAssocEntry 5/6 */
 1173         uint32_t last;
 1174         uint32_t heartbeat_interval;    /* sctpAssocEntry 7   */
 1175         uint32_t state;         /* sctpAssocEntry 8   */
 1176         uint32_t in_streams;    /* sctpAssocEntry 9   */
 1177         uint32_t out_streams;   /* sctpAssocEntry 10  */
 1178         uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
 1179         uint32_t primary_process;       /* sctpAssocEntry 12  */
 1180         uint32_t T1_expireries; /* sctpAssocEntry 13  */
 1181         uint32_t T2_expireries; /* sctpAssocEntry 14  */
 1182         uint32_t retransmitted_tsns;    /* sctpAssocEntry 15  */
 1183         uint32_t total_sends;
 1184         uint32_t total_recvs;
 1185         uint32_t local_tag;
 1186         uint32_t remote_tag;
 1187         uint32_t initial_tsn;
 1188         uint32_t highest_tsn;
 1189         uint32_t cumulative_tsn;
 1190         uint32_t cumulative_tsn_ack;
 1191         uint32_t mtu;
 1192         uint32_t refcnt;
 1193         uint16_t local_port;    /* sctpAssocEntry 3   */
 1194         uint16_t remote_port;   /* sctpAssocEntry 4   */
 1195         struct sctp_timeval start_time; /* sctpAssocEntry 16  */
 1196         struct sctp_timeval discontinuity_time; /* sctpAssocEntry 17  */
 1197         uint32_t peers_rwnd;
 1198         sctp_assoc_t assoc_id;  /* sctpAssocEntry 1   */
 1199         uint32_t extra_padding[32];     /* future */
 1200 };
 1201 
 1202 struct xsctp_laddr {
 1203         union sctp_sockstore address;   /* sctpAssocLocalAddrEntry 1/2 */
 1204         uint32_t last;
 1205         struct sctp_timeval start_time; /* sctpAssocLocalAddrEntry 3   */
 1206         uint32_t extra_padding[32];     /* future */
 1207 };
 1208 
 1209 struct xsctp_raddr {
 1210         union sctp_sockstore address;   /* sctpAssocLocalRemEntry 1/2 */
 1211         uint32_t last;
 1212         uint32_t rto;           /* sctpAssocLocalRemEntry 5   */
 1213         uint32_t max_path_rtx;  /* sctpAssocLocalRemEntry 6   */
 1214         uint32_t rtx;           /* sctpAssocLocalRemEntry 7   */
 1215         uint32_t error_counter; /* */
 1216         uint32_t cwnd;          /* */
 1217         uint32_t flight_size;   /* */
 1218         uint32_t mtu;           /* */
 1219         uint8_t active;         /* sctpAssocLocalRemEntry 3   */
 1220         uint8_t confirmed;      /* */
 1221         uint8_t heartbeat_enabled;      /* sctpAssocLocalRemEntry 4   */
 1222         uint8_t potentially_failed;
 1223         struct sctp_timeval start_time; /* sctpAssocLocalRemEntry 8   */
 1224         uint32_t rtt;
 1225         uint32_t heartbeat_interval;
 1226         uint32_t extra_padding[31];     /* future */
 1227 };
 1228 
 1229 #define SCTP_MAX_LOGGING_SIZE 30000
 1230 #define SCTP_TRACE_PARAMS 6     /* This number MUST be even   */
 1231 
 1232 struct sctp_log_entry {
 1233         uint64_t timestamp;
 1234         uint32_t subsys;
 1235         uint32_t padding;
 1236         uint32_t params[SCTP_TRACE_PARAMS];
 1237 };
 1238 
 1239 struct sctp_log {
 1240         struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
 1241         uint32_t index;
 1242         uint32_t padding;
 1243 };
 1244 
 1245 /*
 1246  * Kernel defined for sctp_send
 1247  */
 1248 #if defined(_KERNEL) || defined(__Userspace__)
 1249 int
 1250 sctp_lower_sosend(struct socket *so,
 1251     struct sockaddr *addr,
 1252     struct uio *uio,
 1253     struct mbuf *i_pak,
 1254     struct mbuf *control,
 1255     int flags,
 1256     struct sctp_sndrcvinfo *srcv
 1257     ,struct thread *p
 1258 );
 1259 
 1260 int
 1261 sctp_sorecvmsg(struct socket *so,
 1262     struct uio *uio,
 1263     struct mbuf **mp,
 1264     struct sockaddr *from,
 1265     int fromlen,
 1266     int *msg_flags,
 1267     struct sctp_sndrcvinfo *sinfo,
 1268     int filling_sinfo);
 1269 
 1270 #endif
 1271 
 1272 /*
 1273  * API system calls
 1274  */
 1275 #if !(defined(_KERNEL)) && !(defined(__Userspace__))
 1276 
 1277 __BEGIN_DECLS
 1278 int sctp_peeloff(int, sctp_assoc_t);
 1279 int sctp_bindx(int, struct sockaddr *, int, int);
 1280 int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
 1281 int sctp_getaddrlen(sa_family_t);
 1282 int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
 1283 void sctp_freepaddrs(struct sockaddr *);
 1284 int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
 1285 void sctp_freeladdrs(struct sockaddr *);
 1286 int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
 1287 
 1288 /* deprecated */
 1289 ssize_t 
 1290 sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
 1291     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
 1292 
 1293 /* deprecated */
 1294 ssize_t 
 1295 sctp_send(int, const void *, size_t,
 1296     const struct sctp_sndrcvinfo *, int);
 1297 
 1298 /* deprecated */
 1299 ssize_t 
 1300 sctp_sendx(int, const void *, size_t, struct sockaddr *,
 1301     int, struct sctp_sndrcvinfo *, int);
 1302 
 1303 /* deprecated */
 1304 ssize_t 
 1305 sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
 1306     int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
 1307 
 1308 sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
 1309 
 1310 /* deprecated */
 1311 ssize_t 
 1312 sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
 1313     struct sctp_sndrcvinfo *, int *);
 1314 
 1315 ssize_t 
 1316 sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
 1317     int, void *, socklen_t, unsigned int, int);
 1318 
 1319 ssize_t 
 1320 sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
 1321     socklen_t *, void *, socklen_t *, unsigned int *, int *);
 1322 
 1323 __END_DECLS
 1324 
 1325 #endif                          /* !_KERNEL */
 1326 #endif                          /* !__sctp_uio_h__ */

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