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

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions are met:
   10  *
   11  * a) Redistributions of source code must retain the above copyright notice,
   12  *    this list of conditions and the following disclaimer.
   13  *
   14  * b) Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in
   16  *    the documentation and/or other materials provided with the distribution.
   17  *
   18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   19  *    contributors may be used to endorse or promote products derived
   20  *    from this software without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   32  * THE POSSIBILITY OF SUCH DAMAGE.
   33  */
   34 
   35 #include <sys/cdefs.h>
   36 __FBSDID("$FreeBSD: releng/12.0/sys/netinet/sctp.h 336511 2018-07-19 20:16:33Z tuexen $");
   37 
   38 #ifndef _NETINET_SCTP_H_
   39 #define _NETINET_SCTP_H_
   40 
   41 
   42 #include <sys/types.h>
   43 
   44 
   45 #define SCTP_PACKED __attribute__((packed))
   46 
   47 /*
   48  * SCTP protocol - RFC4960.
   49  */
   50 struct sctphdr {
   51         uint16_t src_port;      /* source port */
   52         uint16_t dest_port;     /* destination port */
   53         uint32_t v_tag;         /* verification tag of packet */
   54         uint32_t checksum;      /* CRC32C checksum */
   55         /* chunks follow... */
   56 }       SCTP_PACKED;
   57 
   58 /*
   59  * SCTP Chunks
   60  */
   61 struct sctp_chunkhdr {
   62         uint8_t chunk_type;     /* chunk type */
   63         uint8_t chunk_flags;    /* chunk flags */
   64         uint16_t chunk_length;  /* chunk length */
   65         /* optional params follow */
   66 }             SCTP_PACKED;
   67 
   68 /*
   69  * SCTP chunk parameters
   70  */
   71 struct sctp_paramhdr {
   72         uint16_t param_type;    /* parameter type */
   73         uint16_t param_length;  /* parameter length */
   74 }             SCTP_PACKED;
   75 
   76 /*
   77  * user socket options: socket API defined
   78  */
   79 /*
   80  * read-write options
   81  */
   82 #define SCTP_RTOINFO                    0x00000001
   83 #define SCTP_ASSOCINFO                  0x00000002
   84 #define SCTP_INITMSG                    0x00000003
   85 #define SCTP_NODELAY                    0x00000004
   86 #define SCTP_AUTOCLOSE                  0x00000005
   87 #define SCTP_SET_PEER_PRIMARY_ADDR      0x00000006
   88 #define SCTP_PRIMARY_ADDR               0x00000007
   89 #define SCTP_ADAPTATION_LAYER           0x00000008
   90 /* same as above */
   91 #define SCTP_ADAPTION_LAYER             0x00000008
   92 #define SCTP_DISABLE_FRAGMENTS          0x00000009
   93 #define SCTP_PEER_ADDR_PARAMS           0x0000000a
   94 #define SCTP_DEFAULT_SEND_PARAM         0x0000000b
   95 /* ancillary data/notification interest options */
   96 #define SCTP_EVENTS                     0x0000000c      /* deprecated */
   97 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
   98 #define SCTP_I_WANT_MAPPED_V4_ADDR      0x0000000d
   99 #define SCTP_MAXSEG                     0x0000000e
  100 #define SCTP_DELAYED_SACK               0x0000000f
  101 #define SCTP_FRAGMENT_INTERLEAVE        0x00000010
  102 #define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
  103 /* authentication support */
  104 #define SCTP_AUTH_CHUNK                 0x00000012
  105 #define SCTP_AUTH_KEY                   0x00000013
  106 #define SCTP_HMAC_IDENT                 0x00000014
  107 #define SCTP_AUTH_ACTIVE_KEY            0x00000015
  108 #define SCTP_AUTH_DELETE_KEY            0x00000016
  109 #define SCTP_USE_EXT_RCVINFO            0x00000017
  110 #define SCTP_AUTO_ASCONF                0x00000018      /* rw */
  111 #define SCTP_MAXBURST                   0x00000019      /* rw */
  112 #define SCTP_MAX_BURST                  0x00000019      /* rw */
  113 /* assoc level context */
  114 #define SCTP_CONTEXT                    0x0000001a      /* rw */
  115 /* explicit EOR signalling */
  116 #define SCTP_EXPLICIT_EOR               0x0000001b
  117 #define SCTP_REUSE_PORT                 0x0000001c      /* rw */
  118 #define SCTP_AUTH_DEACTIVATE_KEY        0x0000001d
  119 #define SCTP_EVENT                      0x0000001e
  120 #define SCTP_RECVRCVINFO                0x0000001f
  121 #define SCTP_RECVNXTINFO                0x00000020
  122 #define SCTP_DEFAULT_SNDINFO            0x00000021
  123 #define SCTP_DEFAULT_PRINFO             0x00000022
  124 #define SCTP_PEER_ADDR_THLDS            0x00000023
  125 #define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
  126 #define SCTP_ECN_SUPPORTED              0x00000025
  127 #define SCTP_PR_SUPPORTED               0x00000026
  128 #define SCTP_AUTH_SUPPORTED             0x00000027
  129 #define SCTP_ASCONF_SUPPORTED           0x00000028
  130 #define SCTP_RECONFIG_SUPPORTED         0x00000029
  131 #define SCTP_NRSACK_SUPPORTED           0x00000030
  132 #define SCTP_PKTDROP_SUPPORTED          0x00000031
  133 #define SCTP_MAX_CWND                   0x00000032
  134 
  135 /*
  136  * read-only options
  137  */
  138 #define SCTP_STATUS                     0x00000100
  139 #define SCTP_GET_PEER_ADDR_INFO         0x00000101
  140 /* authentication support */
  141 #define SCTP_PEER_AUTH_CHUNKS           0x00000102
  142 #define SCTP_LOCAL_AUTH_CHUNKS          0x00000103
  143 #define SCTP_GET_ASSOC_NUMBER           0x00000104      /* ro */
  144 #define SCTP_GET_ASSOC_ID_LIST          0x00000105      /* ro */
  145 #define SCTP_TIMEOUTS                   0x00000106
  146 #define SCTP_PR_STREAM_STATUS           0x00000107
  147 #define SCTP_PR_ASSOC_STATUS            0x00000108
  148 
  149 /*
  150  * user socket options: BSD implementation specific
  151  */
  152 /*
  153  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
  154  * model if this is turned on then the socket buffer is shared for send
  155  * resources amongst all associations.  The default for the UDP model is that
  156  * is SS_NBIO is set.  Which means all associations have a separate send
  157  * limit BUT they will NOT ever BLOCK instead you will get an error back
  158  * EAGAIN if you try to send too much. If you want the blocking semantics you
  159  * set this option at the cost of sharing one socket send buffer size amongst
  160  * all associations. Peeled off sockets turn this option off and block. But
  161  * since both TCP and peeled off sockets have only one assoc per socket this
  162  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
  163  * model OR peeled off UDP model, but we do allow you to do so. You just use
  164  * the normal syscall to toggle SS_NBIO the way you want.
  165  *
  166  * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
  167  * field.
  168  */
  169 
  170 #define SCTP_ENABLE_STREAM_RESET        0x00000900      /* struct
  171                                                          * sctp_assoc_value */
  172 #define SCTP_RESET_STREAMS              0x00000901      /* struct
  173                                                          * sctp_reset_streams */
  174 #define SCTP_RESET_ASSOC                0x00000902      /* sctp_assoc_t */
  175 #define SCTP_ADD_STREAMS                0x00000903      /* struct
  176                                                          * sctp_add_streams */
  177 
  178 /* For enable stream reset */
  179 #define SCTP_ENABLE_RESET_STREAM_REQ    0x00000001
  180 #define SCTP_ENABLE_RESET_ASSOC_REQ     0x00000002
  181 #define SCTP_ENABLE_CHANGE_ASSOC_REQ    0x00000004
  182 #define SCTP_ENABLE_VALUE_MASK          0x00000007
  183 /* For reset streams */
  184 #define SCTP_STREAM_RESET_INCOMING      0x00000001
  185 #define SCTP_STREAM_RESET_OUTGOING      0x00000002
  186 
  187 
  188 /* here on down are more implementation specific */
  189 #define SCTP_SET_DEBUG_LEVEL            0x00001005
  190 #define SCTP_CLR_STAT_LOG               0x00001007
  191 /* CMT ON/OFF socket option */
  192 #define SCTP_CMT_ON_OFF                 0x00001200
  193 #define SCTP_CMT_USE_DAC                0x00001201
  194 /* JRS - Pluggable Congestion Control Socket option */
  195 #define SCTP_PLUGGABLE_CC               0x00001202
  196 /* RS - Pluggable Stream Scheduling Socket option */
  197 #define SCTP_PLUGGABLE_SS               0x00001203
  198 #define SCTP_SS_VALUE                   0x00001204
  199 #define SCTP_CC_OPTION                  0x00001205      /* Options for CC
  200                                                          * modules */
  201 /* For I-DATA */
  202 #define SCTP_INTERLEAVING_SUPPORTED     0x00001206
  203 
  204 /* read only */
  205 #define SCTP_GET_SNDBUF_USE             0x00001101
  206 #define SCTP_GET_STAT_LOG               0x00001103
  207 #define SCTP_PCB_STATUS                 0x00001104
  208 #define SCTP_GET_NONCE_VALUES           0x00001105
  209 
  210 
  211 /* Special hook for dynamically setting primary for all assoc's,
  212  * this is a write only option that requires root privilege.
  213  */
  214 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
  215 
  216 /* VRF (virtual router feature) and multi-VRF support
  217  * options. VRF's provide splits within a router
  218  * that give the views of multiple routers. A
  219  * standard host, without VRF support, is just
  220  * a single VRF. If VRF's are supported then
  221  * the transport must be VRF aware. This means
  222  * that every socket call coming in must be directed
  223  * within the endpoint to one of the VRF's it belongs
  224  * to. The endpoint, before binding, may select
  225  * the "default" VRF it is in by using a set socket
  226  * option with SCTP_VRF_ID. This will also
  227  * get propagated to the default VRF. Once the
  228  * endpoint binds an address then it CANNOT add
  229  * additional VRF's to become a Multi-VRF endpoint.
  230  *
  231  * Before BINDING additional VRF's can be added with
  232  * the SCTP_ADD_VRF_ID call or deleted with
  233  * SCTP_DEL_VRF_ID.
  234  *
  235  * Associations are ALWAYS contained inside a single
  236  * VRF. They cannot reside in two (or more) VRF's. Incoming
  237  * packets, assuming the router is VRF aware, can always
  238  * tell us what VRF they arrived on. A host not supporting
  239  * any VRF's will find that the packets always arrived on the
  240  * single VRF that the host has.
  241  *
  242  */
  243 
  244 #define SCTP_VRF_ID                     0x00003001
  245 #define SCTP_ADD_VRF_ID                 0x00003002
  246 #define SCTP_GET_VRF_IDS                0x00003003
  247 #define SCTP_GET_ASOC_VRF               0x00003004
  248 #define SCTP_DEL_VRF_ID                 0x00003005
  249 
  250 /*
  251  * If you enable packet logging you can get
  252  * a poor mans ethereal output in binary
  253  * form. Note this is a compile option to
  254  * the kernel,  SCTP_PACKET_LOGGING, and
  255  * without it in your kernel you
  256  * will get a EOPNOTSUPP
  257  */
  258 #define SCTP_GET_PACKET_LOG             0x00004001
  259 
  260 /*
  261  * hidden implementation specific options these are NOT user visible (should
  262  * move out of sctp.h)
  263  */
  264 /* sctp_bindx() flags as hidden socket options */
  265 #define SCTP_BINDX_ADD_ADDR             0x00008001
  266 #define SCTP_BINDX_REM_ADDR             0x00008002
  267 /* Hidden socket option that gets the addresses */
  268 #define SCTP_GET_PEER_ADDRESSES         0x00008003
  269 #define SCTP_GET_LOCAL_ADDRESSES        0x00008004
  270 /* return the total count in bytes needed to hold all local addresses bound */
  271 #define SCTP_GET_LOCAL_ADDR_SIZE        0x00008005
  272 /* Return the total count in bytes needed to hold the remote address */
  273 #define SCTP_GET_REMOTE_ADDR_SIZE       0x00008006
  274 /* hidden option for connectx */
  275 #define SCTP_CONNECT_X                  0x00008007
  276 /* hidden option for connectx_delayed, part of sendx */
  277 #define SCTP_CONNECT_X_DELAYED          0x00008008
  278 #define SCTP_CONNECT_X_COMPLETE         0x00008009
  279 /* hidden socket option based sctp_peeloff */
  280 #define SCTP_PEELOFF                    0x0000800a
  281 /* the real worker for sctp_getaddrlen() */
  282 #define SCTP_GET_ADDR_LEN               0x0000800b
  283 /* Debug things that need to be purged */
  284 #define SCTP_SET_INITIAL_DBG_SEQ        0x00009f00
  285 
  286 /* JRS - Supported congestion control modules for pluggable
  287  * congestion control
  288  */
  289 /* Standard TCP Congestion Control */
  290 #define SCTP_CC_RFC2581         0x00000000
  291 /* High Speed TCP Congestion Control (Floyd) */
  292 #define SCTP_CC_HSTCP           0x00000001
  293 /* HTCP Congestion Control */
  294 #define SCTP_CC_HTCP            0x00000002
  295 /* RTCC Congestion Control - RFC2581 plus */
  296 #define SCTP_CC_RTCC            0x00000003
  297 
  298 #define SCTP_CC_OPT_RTCC_SETMODE        0x00002000
  299 #define SCTP_CC_OPT_USE_DCCC_ECN        0x00002001
  300 #define SCTP_CC_OPT_STEADY_STEP         0x00002002
  301 
  302 #define SCTP_CMT_OFF            0
  303 #define SCTP_CMT_BASE           1
  304 #define SCTP_CMT_RPV1           2
  305 #define SCTP_CMT_RPV2           3
  306 #define SCTP_CMT_MPTCP          4
  307 #define SCTP_CMT_MAX            SCTP_CMT_MPTCP
  308 
  309 /* RS - Supported stream scheduling modules for pluggable
  310  * stream scheduling
  311  */
  312 /* Default simple round-robin */
  313 #define SCTP_SS_DEFAULT                 0x00000000
  314 /* Real round-robin */
  315 #define SCTP_SS_ROUND_ROBIN             0x00000001
  316 /* Real round-robin per packet */
  317 #define SCTP_SS_ROUND_ROBIN_PACKET      0x00000002
  318 /* Priority */
  319 #define SCTP_SS_PRIORITY                0x00000003
  320 /* Fair Bandwidth */
  321 #define SCTP_SS_FAIR_BANDWITH           0x00000004
  322 /* First-come, first-serve */
  323 #define SCTP_SS_FIRST_COME              0x00000005
  324 
  325 
  326 /* fragment interleave constants
  327  * setting must be one of these or
  328  * EINVAL returned.
  329  */
  330 #define SCTP_FRAG_LEVEL_0    0x00000000
  331 #define SCTP_FRAG_LEVEL_1    0x00000001
  332 #define SCTP_FRAG_LEVEL_2    0x00000002
  333 
  334 /*
  335  * user state values
  336  */
  337 #define SCTP_CLOSED                     0x0000
  338 #define SCTP_BOUND                      0x1000
  339 #define SCTP_LISTEN                     0x2000
  340 #define SCTP_COOKIE_WAIT                0x0002
  341 #define SCTP_COOKIE_ECHOED              0x0004
  342 #define SCTP_ESTABLISHED                0x0008
  343 #define SCTP_SHUTDOWN_SENT              0x0010
  344 #define SCTP_SHUTDOWN_RECEIVED          0x0020
  345 #define SCTP_SHUTDOWN_ACK_SENT          0x0040
  346 #define SCTP_SHUTDOWN_PENDING           0x0080
  347 
  348 /*
  349  * SCTP operational error codes (user visible)
  350  */
  351 #define SCTP_CAUSE_NO_ERROR             0x0000
  352 #define SCTP_CAUSE_INVALID_STREAM       0x0001
  353 #define SCTP_CAUSE_MISSING_PARAM        0x0002
  354 #define SCTP_CAUSE_STALE_COOKIE         0x0003
  355 #define SCTP_CAUSE_OUT_OF_RESC          0x0004
  356 #define SCTP_CAUSE_UNRESOLVABLE_ADDR    0x0005
  357 #define SCTP_CAUSE_UNRECOG_CHUNK        0x0006
  358 #define SCTP_CAUSE_INVALID_PARAM        0x0007
  359 #define SCTP_CAUSE_UNRECOG_PARAM        0x0008
  360 #define SCTP_CAUSE_NO_USER_DATA         0x0009
  361 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN   0x000a
  362 #define SCTP_CAUSE_RESTART_W_NEWADDR    0x000b
  363 #define SCTP_CAUSE_USER_INITIATED_ABT   0x000c
  364 #define SCTP_CAUSE_PROTOCOL_VIOLATION   0x000d
  365 
  366 /* Error causes from RFC5061 */
  367 #define SCTP_CAUSE_DELETING_LAST_ADDR   0x00a0
  368 #define SCTP_CAUSE_RESOURCE_SHORTAGE    0x00a1
  369 #define SCTP_CAUSE_DELETING_SRC_ADDR    0x00a2
  370 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK   0x00a3
  371 #define SCTP_CAUSE_REQUEST_REFUSED      0x00a4
  372 
  373 /* Error causes from nat-draft */
  374 #define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
  375 #define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
  376 
  377 /* Error causes from RFC4895 */
  378 #define SCTP_CAUSE_UNSUPPORTED_HMACID   0x0105
  379 
  380 /*
  381  * error cause parameters (user visible)
  382  */
  383 struct sctp_gen_error_cause {
  384         uint16_t code;
  385         uint16_t length;
  386         uint8_t info[];
  387 }                    SCTP_PACKED;
  388 
  389 struct sctp_error_cause {
  390         uint16_t code;
  391         uint16_t length;
  392         /* optional cause-specific info may follow */
  393 }                SCTP_PACKED;
  394 
  395 struct sctp_error_invalid_stream {
  396         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_INVALID_STREAM */
  397         uint16_t stream_id;     /* stream id of the DATA in error */
  398         uint16_t reserved;
  399 }                         SCTP_PACKED;
  400 
  401 struct sctp_error_missing_param {
  402         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_MISSING_PARAM */
  403         uint32_t num_missing_params;    /* number of missing parameters */
  404         uint16_t type[];
  405 }                        SCTP_PACKED;
  406 
  407 struct sctp_error_stale_cookie {
  408         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_STALE_COOKIE */
  409         uint32_t stale_time;    /* time in usec of staleness */
  410 }                       SCTP_PACKED;
  411 
  412 struct sctp_error_out_of_resource {
  413         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_OUT_OF_RESOURCES */
  414 }                          SCTP_PACKED;
  415 
  416 struct sctp_error_unresolv_addr {
  417         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_UNRESOLVABLE_ADDR */
  418 }                        SCTP_PACKED;
  419 
  420 struct sctp_error_unrecognized_chunk {
  421         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_UNRECOG_CHUNK */
  422         struct sctp_chunkhdr ch;        /* header from chunk in error */
  423 }                             SCTP_PACKED;
  424 
  425 struct sctp_error_no_user_data {
  426         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_NO_USER_DATA */
  427         uint32_t tsn;           /* TSN of the empty data chunk */
  428 }                       SCTP_PACKED;
  429 
  430 struct sctp_error_auth_invalid_hmac {
  431         struct sctp_error_cause cause;  /* code=SCTP_CAUSE_UNSUPPORTED_HMACID */
  432         uint16_t hmac_id;
  433 }                            SCTP_PACKED;
  434 
  435 /*
  436  * Main SCTP chunk types we place these here so natd and f/w's in user land
  437  * can find them.
  438  */
  439 /************0x00 series ***********/
  440 #define SCTP_DATA               0x00
  441 #define SCTP_INITIATION         0x01
  442 #define SCTP_INITIATION_ACK     0x02
  443 #define SCTP_SELECTIVE_ACK      0x03
  444 #define SCTP_HEARTBEAT_REQUEST  0x04
  445 #define SCTP_HEARTBEAT_ACK      0x05
  446 #define SCTP_ABORT_ASSOCIATION  0x06
  447 #define SCTP_SHUTDOWN           0x07
  448 #define SCTP_SHUTDOWN_ACK       0x08
  449 #define SCTP_OPERATION_ERROR    0x09
  450 #define SCTP_COOKIE_ECHO        0x0a
  451 #define SCTP_COOKIE_ACK         0x0b
  452 #define SCTP_ECN_ECHO           0x0c
  453 #define SCTP_ECN_CWR            0x0d
  454 #define SCTP_SHUTDOWN_COMPLETE  0x0e
  455 /* RFC4895 */
  456 #define SCTP_AUTHENTICATION     0x0f
  457 /* EY nr_sack chunk id*/
  458 #define SCTP_NR_SELECTIVE_ACK   0x10
  459 /************0x40 series ***********/
  460 #define SCTP_IDATA              0x40
  461 /************0x80 series ***********/
  462 /* RFC5061 */
  463 #define SCTP_ASCONF_ACK         0x80
  464 /* draft-ietf-stewart-pktdrpsctp */
  465 #define SCTP_PACKET_DROPPED     0x81
  466 /* draft-ietf-stewart-strreset-xxx */
  467 #define SCTP_STREAM_RESET       0x82
  468 
  469 /* RFC4820                         */
  470 #define SCTP_PAD_CHUNK          0x84
  471 /************0xc0 series ***********/
  472 /* RFC3758 */
  473 #define SCTP_FORWARD_CUM_TSN    0xc0
  474 /* RFC5061 */
  475 #define SCTP_ASCONF             0xc1
  476 #define SCTP_IFORWARD_CUM_TSN   0xc2
  477 
  478 /* ABORT and SHUTDOWN COMPLETE FLAG */
  479 #define SCTP_HAD_NO_TCB         0x01
  480 
  481 /* Packet dropped flags */
  482 #define SCTP_FROM_MIDDLE_BOX    SCTP_HAD_NO_TCB
  483 #define SCTP_BADCRC             0x02
  484 #define SCTP_PACKET_TRUNCATED   0x04
  485 
  486 /* Flag for ECN -CWR */
  487 #define SCTP_CWR_REDUCE_OVERRIDE 0x01
  488 #define SCTP_CWR_IN_SAME_WINDOW  0x02
  489 
  490 #define SCTP_SAT_NETWORK_MIN    400     /* min ms for RTT to set satellite
  491                                          * time */
  492 #define SCTP_SAT_NETWORK_BURST_INCR  2  /* how many times to multiply maxburst
  493                                          * in sat */
  494 
  495 /* Data Chuck Specific Flags */
  496 #define SCTP_DATA_FRAG_MASK        0x03
  497 #define SCTP_DATA_MIDDLE_FRAG      0x00
  498 #define SCTP_DATA_LAST_FRAG        0x01
  499 #define SCTP_DATA_FIRST_FRAG       0x02
  500 #define SCTP_DATA_NOT_FRAG         0x03
  501 #define SCTP_DATA_UNORDERED        0x04
  502 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
  503 /* ECN Nonce: SACK Chunk Specific Flags */
  504 #define SCTP_SACK_NONCE_SUM        0x01
  505 
  506 /* CMT DAC algorithm SACK flag */
  507 #define SCTP_SACK_CMT_DAC          0x80
  508 
  509 /*
  510  * PCB flags (in sctp_flags bitmask).
  511  * Note the features and flags are meant
  512  * for use by netstat.
  513  */
  514 #define SCTP_PCB_FLAGS_UDPTYPE          0x00000001
  515 #define SCTP_PCB_FLAGS_TCPTYPE          0x00000002
  516 #define SCTP_PCB_FLAGS_BOUNDALL         0x00000004
  517 #define SCTP_PCB_FLAGS_ACCEPTING        0x00000008
  518 #define SCTP_PCB_FLAGS_UNBOUND          0x00000010
  519 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
  520 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
  521 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
  522 /* TCP model support */
  523 
  524 #define SCTP_PCB_FLAGS_CONNECTED        0x00200000
  525 #define SCTP_PCB_FLAGS_IN_TCPPOOL       0x00400000
  526 #define SCTP_PCB_FLAGS_DONT_WAKE        0x00800000
  527 #define SCTP_PCB_FLAGS_WAKEOUTPUT       0x01000000
  528 #define SCTP_PCB_FLAGS_WAKEINPUT        0x02000000
  529 #define SCTP_PCB_FLAGS_BOUND_V6         0x04000000
  530 #define SCTP_PCB_FLAGS_BLOCKING_IO      0x08000000
  531 #define SCTP_PCB_FLAGS_SOCKET_GONE      0x10000000
  532 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE   0x20000000
  533 #define SCTP_PCB_FLAGS_SOCKET_CANT_READ 0x40000000
  534 
  535 /* flags to copy to new PCB */
  536 #define SCTP_PCB_COPY_FLAGS             (SCTP_PCB_FLAGS_BOUNDALL|\
  537                                          SCTP_PCB_FLAGS_WAKEINPUT|\
  538                                          SCTP_PCB_FLAGS_BOUND_V6)
  539 
  540 /*
  541  * PCB Features (in sctp_features bitmask)
  542  */
  543 #define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
  544 #define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002     /* deprecated */
  545 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
  546 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
  547 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
  548 #define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
  549 #define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
  550 /* socket options */
  551 #define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
  552 #define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
  553 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400     /* deprecated */
  554 #define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
  555 #define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
  556 #define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
  557 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000     /* deprecated */
  558 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
  559 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
  560 #define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
  561 #define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
  562 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
  563 #define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
  564 #define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
  565 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
  566 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
  567 #define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
  568 #define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
  569 #define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
  570 #define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
  571 #define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
  572 #define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
  573 #define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
  574 
  575 /*-
  576  * mobility_features parameters (by micchie).Note
  577  * these features are applied against the
  578  * sctp_mobility_features flags.. not the sctp_features
  579  * flags.
  580  */
  581 #define SCTP_MOBILITY_BASE               0x00000001
  582 #define SCTP_MOBILITY_FASTHANDOFF        0x00000002
  583 #define SCTP_MOBILITY_PRIM_DELETED       0x00000004
  584 
  585 
  586 #define SCTP_SMALLEST_PMTU 512  /* smallest pmtu allowed when disabling PMTU
  587                                  * discovery */
  588 
  589 #undef SCTP_PACKED
  590 
  591 #include <netinet/sctp_uio.h>
  592 
  593 /* This dictates the size of the packet
  594  * collection buffer. This only applies
  595  * if SCTP_PACKET_LOGGING is enabled in
  596  * your config.
  597  */
  598 #define SCTP_PACKET_LOG_SIZE 65536
  599 
  600 /* Maximum delays and such a user can set for options that
  601  * take ms.
  602  */
  603 #define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
  604 #define SCTP_MAX_HB_INTERVAL 14400000   /* 4 hours in ms */
  605 #define SCTP_MAX_COOKIE_LIFE  3600000   /* 1 hour in ms */
  606 
  607 
  608 /* Types of logging/KTR tracing  that can be enabled via the
  609  * sysctl net.inet.sctp.sctp_logging. You must also enable
  610  * SUBSYS tracing.
  611  * Note that you must have the SCTP option in the kernel
  612  * to enable these as well.
  613  */
  614 #define SCTP_BLK_LOGGING_ENABLE                         0x00000001
  615 #define SCTP_CWND_MONITOR_ENABLE                        0x00000002
  616 #define SCTP_CWND_LOGGING_ENABLE                        0x00000004
  617 #define SCTP_FLIGHT_LOGGING_ENABLE                      0x00000020
  618 #define SCTP_FR_LOGGING_ENABLE                          0x00000040
  619 #define SCTP_LOCK_LOGGING_ENABLE                        0x00000080
  620 #define SCTP_MAP_LOGGING_ENABLE                         0x00000100
  621 #define SCTP_MBCNT_LOGGING_ENABLE                       0x00000200
  622 #define SCTP_MBUF_LOGGING_ENABLE                        0x00000400
  623 #define SCTP_NAGLE_LOGGING_ENABLE                       0x00000800
  624 #define SCTP_RECV_RWND_LOGGING_ENABLE                   0x00001000
  625 #define SCTP_RTTVAR_LOGGING_ENABLE                      0x00002000
  626 #define SCTP_SACK_LOGGING_ENABLE                        0x00004000
  627 #define SCTP_SACK_RWND_LOGGING_ENABLE                   0x00008000
  628 #define SCTP_SB_LOGGING_ENABLE                          0x00010000
  629 #define SCTP_STR_LOGGING_ENABLE                         0x00020000
  630 #define SCTP_WAKE_LOGGING_ENABLE                        0x00040000
  631 #define SCTP_LOG_MAXBURST_ENABLE                        0x00080000
  632 #define SCTP_LOG_RWND_ENABLE                            0x00100000
  633 #define SCTP_LOG_SACK_ARRIVALS_ENABLE                   0x00200000
  634 #define SCTP_LTRACE_CHUNK_ENABLE                        0x00400000
  635 #define SCTP_LTRACE_ERROR_ENABLE                        0x00800000
  636 #define SCTP_LAST_PACKET_TRACING                        0x01000000
  637 #define SCTP_THRESHOLD_LOGGING                          0x02000000
  638 #define SCTP_LOG_AT_SEND_2_SCTP                         0x04000000
  639 #define SCTP_LOG_AT_SEND_2_OUTQ                         0x08000000
  640 #define SCTP_LOG_TRY_ADVANCE                            0x10000000
  641 
  642 #endif                          /* !_NETINET_SCTP_H_ */

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