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  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/10.0/sys/netinet/sctp.h 254248 2013-08-12 13:52:15Z tuexen $");
   35 
   36 #ifndef _NETINET_SCTP_H_
   37 #define _NETINET_SCTP_H_
   38 
   39 
   40 #include <sys/types.h>
   41 
   42 
   43 #define SCTP_PACKED __attribute__((packed))
   44 
   45 /*
   46  * SCTP protocol - RFC2960.
   47  */
   48 struct sctphdr {
   49         uint16_t src_port;      /* source port */
   50         uint16_t dest_port;     /* destination port */
   51         uint32_t v_tag;         /* verification tag of packet */
   52         uint32_t checksum;      /* Adler32 C-Sum */
   53         /* chunks follow... */
   54 }       SCTP_PACKED;
   55 
   56 /*
   57  * SCTP Chunks
   58  */
   59 struct sctp_chunkhdr {
   60         uint8_t chunk_type;     /* chunk type */
   61         uint8_t chunk_flags;    /* chunk flags */
   62         uint16_t chunk_length;  /* chunk length */
   63         /* optional params follow */
   64 }             SCTP_PACKED;
   65 
   66 /*
   67  * SCTP chunk parameters
   68  */
   69 struct sctp_paramhdr {
   70         uint16_t param_type;    /* parameter type */
   71         uint16_t param_length;  /* parameter length */
   72 }             SCTP_PACKED;
   73 
   74 /*
   75  * user socket options: socket API defined
   76  */
   77 /*
   78  * read-write options
   79  */
   80 #define SCTP_RTOINFO                    0x00000001
   81 #define SCTP_ASSOCINFO                  0x00000002
   82 #define SCTP_INITMSG                    0x00000003
   83 #define SCTP_NODELAY                    0x00000004
   84 #define SCTP_AUTOCLOSE                  0x00000005
   85 #define SCTP_SET_PEER_PRIMARY_ADDR      0x00000006
   86 #define SCTP_PRIMARY_ADDR               0x00000007
   87 #define SCTP_ADAPTATION_LAYER           0x00000008
   88 /* same as above */
   89 #define SCTP_ADAPTION_LAYER             0x00000008
   90 #define SCTP_DISABLE_FRAGMENTS          0x00000009
   91 #define SCTP_PEER_ADDR_PARAMS           0x0000000a
   92 #define SCTP_DEFAULT_SEND_PARAM         0x0000000b
   93 /* ancillary data/notification interest options */
   94 #define SCTP_EVENTS                     0x0000000c      /* deprecated */
   95 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
   96 #define SCTP_I_WANT_MAPPED_V4_ADDR      0x0000000d
   97 #define SCTP_MAXSEG                     0x0000000e
   98 #define SCTP_DELAYED_SACK               0x0000000f
   99 #define SCTP_FRAGMENT_INTERLEAVE        0x00000010
  100 #define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
  101 /* authentication support */
  102 #define SCTP_AUTH_CHUNK                 0x00000012
  103 #define SCTP_AUTH_KEY                   0x00000013
  104 #define SCTP_HMAC_IDENT                 0x00000014
  105 #define SCTP_AUTH_ACTIVE_KEY            0x00000015
  106 #define SCTP_AUTH_DELETE_KEY            0x00000016
  107 #define SCTP_USE_EXT_RCVINFO            0x00000017
  108 #define SCTP_AUTO_ASCONF                0x00000018      /* rw */
  109 #define SCTP_MAXBURST                   0x00000019      /* rw */
  110 #define SCTP_MAX_BURST                  0x00000019      /* rw */
  111 /* assoc level context */
  112 #define SCTP_CONTEXT                    0x0000001a      /* rw */
  113 /* explicit EOR signalling */
  114 #define SCTP_EXPLICIT_EOR               0x0000001b
  115 #define SCTP_REUSE_PORT                 0x0000001c      /* rw */
  116 #define SCTP_AUTH_DEACTIVATE_KEY        0x0000001d
  117 #define SCTP_EVENT                      0x0000001e
  118 #define SCTP_RECVRCVINFO                0x0000001f
  119 #define SCTP_RECVNXTINFO                0x00000020
  120 #define SCTP_DEFAULT_SNDINFO            0x00000021
  121 #define SCTP_DEFAULT_PRINFO             0x00000022
  122 #define SCTP_PEER_ADDR_THLDS            0x00000023
  123 #define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
  124 
  125 /*
  126  * read-only options
  127  */
  128 #define SCTP_STATUS                     0x00000100
  129 #define SCTP_GET_PEER_ADDR_INFO         0x00000101
  130 /* authentication support */
  131 #define SCTP_PEER_AUTH_CHUNKS           0x00000102
  132 #define SCTP_LOCAL_AUTH_CHUNKS          0x00000103
  133 #define SCTP_GET_ASSOC_NUMBER           0x00000104      /* ro */
  134 #define SCTP_GET_ASSOC_ID_LIST          0x00000105      /* ro */
  135 #define SCTP_TIMEOUTS                   0x00000106
  136 
  137 /*
  138  * user socket options: BSD implementation specific
  139  */
  140 /*
  141  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
  142  * model if this is turned on then the socket buffer is shared for send
  143  * resources amongst all associations.  The default for the UDP model is that
  144  * is SS_NBIO is set.  Which means all associations have a separate send
  145  * limit BUT they will NOT ever BLOCK instead you will get an error back
  146  * EAGAIN if you try to send too much. If you want the blocking semantics you
  147  * set this option at the cost of sharing one socket send buffer size amongst
  148  * all associations. Peeled off sockets turn this option off and block. But
  149  * since both TCP and peeled off sockets have only one assoc per socket this
  150  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
  151  * model OR peeled off UDP model, but we do allow you to do so. You just use
  152  * the normal syscall to toggle SS_NBIO the way you want.
  153  *
  154  * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
  155  * field.
  156  */
  157 
  158 #define SCTP_ENABLE_STREAM_RESET        0x00000900      /* struct
  159                                                          * sctp_assoc_value */
  160 #define SCTP_RESET_STREAMS              0x00000901      /* struct
  161                                                          * sctp_reset_streams */
  162 #define SCTP_RESET_ASSOC                0x00000902      /* sctp_assoc_t */
  163 #define SCTP_ADD_STREAMS                0x00000903      /* struct
  164                                                          * sctp_add_streams */
  165 
  166 /* For enable stream reset */
  167 #define SCTP_ENABLE_RESET_STREAM_REQ    0x00000001
  168 #define SCTP_ENABLE_RESET_ASSOC_REQ     0x00000002
  169 #define SCTP_ENABLE_CHANGE_ASSOC_REQ    0x00000004
  170 #define SCTP_ENABLE_VALUE_MASK          0x00000007
  171 /* For reset streams */
  172 #define SCTP_STREAM_RESET_INCOMING      0x00000001
  173 #define SCTP_STREAM_RESET_OUTGOING      0x00000002
  174 
  175 
  176 /* here on down are more implementation specific */
  177 #define SCTP_SET_DEBUG_LEVEL            0x00001005
  178 #define SCTP_CLR_STAT_LOG               0x00001007
  179 /* CMT ON/OFF socket option */
  180 #define SCTP_CMT_ON_OFF                 0x00001200
  181 #define SCTP_CMT_USE_DAC                0x00001201
  182 /* JRS - Pluggable Congestion Control Socket option */
  183 #define SCTP_PLUGGABLE_CC               0x00001202
  184 /* RS - Pluggable Stream Scheduling Socket option */
  185 #define SCTP_PLUGGABLE_SS               0x00001203
  186 #define SCTP_SS_VALUE                   0x00001204
  187 #define SCTP_CC_OPTION                  0x00001205      /* Options for CC
  188                                                          * modules */
  189 /* read only */
  190 #define SCTP_GET_SNDBUF_USE             0x00001101
  191 #define SCTP_GET_STAT_LOG               0x00001103
  192 #define SCTP_PCB_STATUS                 0x00001104
  193 #define SCTP_GET_NONCE_VALUES           0x00001105
  194 
  195 
  196 /* Special hook for dynamically setting primary for all assoc's,
  197  * this is a write only option that requires root privilege.
  198  */
  199 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
  200 
  201 /* VRF (virtual router feature) and multi-VRF support
  202  * options. VRF's provide splits within a router
  203  * that give the views of multiple routers. A
  204  * standard host, without VRF support, is just
  205  * a single VRF. If VRF's are supported then
  206  * the transport must be VRF aware. This means
  207  * that every socket call coming in must be directed
  208  * within the endpoint to one of the VRF's it belongs
  209  * to. The endpoint, before binding, may select
  210  * the "default" VRF it is in by using a set socket
  211  * option with SCTP_VRF_ID. This will also
  212  * get propagated to the default VRF. Once the
  213  * endpoint binds an address then it CANNOT add
  214  * additional VRF's to become a Multi-VRF endpoint.
  215  *
  216  * Before BINDING additional VRF's can be added with
  217  * the SCTP_ADD_VRF_ID call or deleted with
  218  * SCTP_DEL_VRF_ID.
  219  *
  220  * Associations are ALWAYS contained inside a single
  221  * VRF. They cannot reside in two (or more) VRF's. Incoming
  222  * packets, assuming the router is VRF aware, can always
  223  * tell us what VRF they arrived on. A host not supporting
  224  * any VRF's will find that the packets always arrived on the
  225  * single VRF that the host has.
  226  *
  227  */
  228 
  229 #define SCTP_VRF_ID                     0x00003001
  230 #define SCTP_ADD_VRF_ID                 0x00003002
  231 #define SCTP_GET_VRF_IDS                0x00003003
  232 #define SCTP_GET_ASOC_VRF               0x00003004
  233 #define SCTP_DEL_VRF_ID                 0x00003005
  234 
  235 /*
  236  * If you enable packet logging you can get
  237  * a poor mans ethereal output in binary
  238  * form. Note this is a compile option to
  239  * the kernel,  SCTP_PACKET_LOGGING, and
  240  * without it in your kernel you
  241  * will get a EOPNOTSUPP
  242  */
  243 #define SCTP_GET_PACKET_LOG             0x00004001
  244 
  245 /*
  246  * hidden implementation specific options these are NOT user visible (should
  247  * move out of sctp.h)
  248  */
  249 /* sctp_bindx() flags as hidden socket options */
  250 #define SCTP_BINDX_ADD_ADDR             0x00008001
  251 #define SCTP_BINDX_REM_ADDR             0x00008002
  252 /* Hidden socket option that gets the addresses */
  253 #define SCTP_GET_PEER_ADDRESSES         0x00008003
  254 #define SCTP_GET_LOCAL_ADDRESSES        0x00008004
  255 /* return the total count in bytes needed to hold all local addresses bound */
  256 #define SCTP_GET_LOCAL_ADDR_SIZE        0x00008005
  257 /* Return the total count in bytes needed to hold the remote address */
  258 #define SCTP_GET_REMOTE_ADDR_SIZE       0x00008006
  259 /* hidden option for connectx */
  260 #define SCTP_CONNECT_X                  0x00008007
  261 /* hidden option for connectx_delayed, part of sendx */
  262 #define SCTP_CONNECT_X_DELAYED          0x00008008
  263 #define SCTP_CONNECT_X_COMPLETE         0x00008009
  264 /* hidden socket option based sctp_peeloff */
  265 #define SCTP_PEELOFF                    0x0000800a
  266 /* the real worker for sctp_getaddrlen() */
  267 #define SCTP_GET_ADDR_LEN               0x0000800b
  268 /* Debug things that need to be purged */
  269 #define SCTP_SET_INITIAL_DBG_SEQ        0x00009f00
  270 
  271 /* JRS - Supported congestion control modules for pluggable
  272  * congestion control
  273  */
  274 /* Standard TCP Congestion Control */
  275 #define SCTP_CC_RFC2581         0x00000000
  276 /* High Speed TCP Congestion Control (Floyd) */
  277 #define SCTP_CC_HSTCP           0x00000001
  278 /* HTCP Congestion Control */
  279 #define SCTP_CC_HTCP            0x00000002
  280 /* RTCC Congestion Control - RFC2581 plus */
  281 #define SCTP_CC_RTCC            0x00000003
  282 
  283 #define SCTP_CC_OPT_RTCC_SETMODE        0x00002000
  284 #define SCTP_CC_OPT_USE_DCCC_ECN        0x00002001
  285 #define SCTP_CC_OPT_STEADY_STEP         0x00002002
  286 
  287 #define SCTP_CMT_OFF            0
  288 #define SCTP_CMT_BASE           1
  289 #define SCTP_CMT_RPV1           2
  290 #define SCTP_CMT_RPV2           3
  291 #define SCTP_CMT_MPTCP          4
  292 #define SCTP_CMT_MAX            SCTP_CMT_MPTCP
  293 
  294 /* RS - Supported stream scheduling modules for pluggable
  295  * stream scheduling
  296  */
  297 /* Default simple round-robin */
  298 #define SCTP_SS_DEFAULT                 0x00000000
  299 /* Real round-robin */
  300 #define SCTP_SS_ROUND_ROBIN             0x00000001
  301 /* Real round-robin per packet */
  302 #define SCTP_SS_ROUND_ROBIN_PACKET      0x00000002
  303 /* Priority */
  304 #define SCTP_SS_PRIORITY                0x00000003
  305 /* Fair Bandwidth */
  306 #define SCTP_SS_FAIR_BANDWITH           0x00000004
  307 /* First-come, first-serve */
  308 #define SCTP_SS_FIRST_COME              0x00000005
  309 
  310 
  311 /* fragment interleave constants
  312  * setting must be one of these or
  313  * EINVAL returned.
  314  */
  315 #define SCTP_FRAG_LEVEL_0    0x00000000
  316 #define SCTP_FRAG_LEVEL_1    0x00000001
  317 #define SCTP_FRAG_LEVEL_2    0x00000002
  318 
  319 /*
  320  * user state values
  321  */
  322 #define SCTP_CLOSED                     0x0000
  323 #define SCTP_BOUND                      0x1000
  324 #define SCTP_LISTEN                     0x2000
  325 #define SCTP_COOKIE_WAIT                0x0002
  326 #define SCTP_COOKIE_ECHOED              0x0004
  327 #define SCTP_ESTABLISHED                0x0008
  328 #define SCTP_SHUTDOWN_SENT              0x0010
  329 #define SCTP_SHUTDOWN_RECEIVED          0x0020
  330 #define SCTP_SHUTDOWN_ACK_SENT          0x0040
  331 #define SCTP_SHUTDOWN_PENDING           0x0080
  332 
  333 /*
  334  * SCTP operational error codes (user visible)
  335  */
  336 #define SCTP_CAUSE_NO_ERROR             0x0000
  337 #define SCTP_CAUSE_INVALID_STREAM       0x0001
  338 #define SCTP_CAUSE_MISSING_PARAM        0x0002
  339 #define SCTP_CAUSE_STALE_COOKIE         0x0003
  340 #define SCTP_CAUSE_OUT_OF_RESC          0x0004
  341 #define SCTP_CAUSE_UNRESOLVABLE_ADDR    0x0005
  342 #define SCTP_CAUSE_UNRECOG_CHUNK        0x0006
  343 #define SCTP_CAUSE_INVALID_PARAM        0x0007
  344 #define SCTP_CAUSE_UNRECOG_PARAM        0x0008
  345 #define SCTP_CAUSE_NO_USER_DATA         0x0009
  346 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN   0x000a
  347 #define SCTP_CAUSE_RESTART_W_NEWADDR    0x000b
  348 #define SCTP_CAUSE_USER_INITIATED_ABT   0x000c
  349 #define SCTP_CAUSE_PROTOCOL_VIOLATION   0x000d
  350 
  351 /* Error causes from RFC5061 */
  352 #define SCTP_CAUSE_DELETING_LAST_ADDR   0x00a0
  353 #define SCTP_CAUSE_RESOURCE_SHORTAGE    0x00a1
  354 #define SCTP_CAUSE_DELETING_SRC_ADDR    0x00a2
  355 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK   0x00a3
  356 #define SCTP_CAUSE_REQUEST_REFUSED      0x00a4
  357 
  358 /* Error causes from nat-draft */
  359 #define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
  360 #define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
  361 
  362 /* Error causes from RFC4895 */
  363 #define SCTP_CAUSE_UNSUPPORTED_HMACID   0x0105
  364 
  365 /*
  366  * error cause parameters (user visible)
  367  */
  368 struct sctp_error_cause {
  369         uint16_t code;
  370         uint16_t length;
  371         /* optional cause-specific info may follow */
  372 }                SCTP_PACKED;
  373 
  374 struct sctp_error_invalid_stream {
  375         struct sctp_error_cause cause;  /* code=SCTP_ERROR_INVALID_STREAM */
  376         uint16_t stream_id;     /* stream id of the DATA in error */
  377         uint16_t reserved;
  378 }                         SCTP_PACKED;
  379 
  380 struct sctp_error_missing_param {
  381         struct sctp_error_cause cause;  /* code=SCTP_ERROR_MISSING_PARAM */
  382         uint32_t num_missing_params;    /* number of missing parameters */
  383         /* uint16_t param_type's follow */
  384 }                        SCTP_PACKED;
  385 
  386 struct sctp_error_stale_cookie {
  387         struct sctp_error_cause cause;  /* code=SCTP_ERROR_STALE_COOKIE */
  388         uint32_t stale_time;    /* time in usec of staleness */
  389 }                       SCTP_PACKED;
  390 
  391 struct sctp_error_out_of_resource {
  392         struct sctp_error_cause cause;  /* code=SCTP_ERROR_OUT_OF_RESOURCES */
  393 }                          SCTP_PACKED;
  394 
  395 struct sctp_error_unresolv_addr {
  396         struct sctp_error_cause cause;  /* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
  397 
  398 }                        SCTP_PACKED;
  399 
  400 struct sctp_error_unrecognized_chunk {
  401         struct sctp_error_cause cause;  /* code=SCTP_ERROR_UNRECOG_CHUNK */
  402         struct sctp_chunkhdr ch;/* header from chunk in error */
  403 }                             SCTP_PACKED;
  404 
  405 /*
  406  * Main SCTP chunk types we place these here so natd and f/w's in user land
  407  * can find them.
  408  */
  409 /************0x00 series ***********/
  410 #define SCTP_DATA               0x00
  411 #define SCTP_INITIATION         0x01
  412 #define SCTP_INITIATION_ACK     0x02
  413 #define SCTP_SELECTIVE_ACK      0x03
  414 #define SCTP_HEARTBEAT_REQUEST  0x04
  415 #define SCTP_HEARTBEAT_ACK      0x05
  416 #define SCTP_ABORT_ASSOCIATION  0x06
  417 #define SCTP_SHUTDOWN           0x07
  418 #define SCTP_SHUTDOWN_ACK       0x08
  419 #define SCTP_OPERATION_ERROR    0x09
  420 #define SCTP_COOKIE_ECHO        0x0a
  421 #define SCTP_COOKIE_ACK         0x0b
  422 #define SCTP_ECN_ECHO           0x0c
  423 #define SCTP_ECN_CWR            0x0d
  424 #define SCTP_SHUTDOWN_COMPLETE  0x0e
  425 /* RFC4895 */
  426 #define SCTP_AUTHENTICATION     0x0f
  427 /* EY nr_sack chunk id*/
  428 #define SCTP_NR_SELECTIVE_ACK   0x10
  429 /************0x40 series ***********/
  430 /************0x80 series ***********/
  431 /* RFC5061 */
  432 #define SCTP_ASCONF_ACK         0x80
  433 /* draft-ietf-stewart-pktdrpsctp */
  434 #define SCTP_PACKET_DROPPED     0x81
  435 /* draft-ietf-stewart-strreset-xxx */
  436 #define SCTP_STREAM_RESET       0x82
  437 
  438 /* RFC4820                         */
  439 #define SCTP_PAD_CHUNK          0x84
  440 /************0xc0 series ***********/
  441 /* RFC3758 */
  442 #define SCTP_FORWARD_CUM_TSN    0xc0
  443 /* RFC5061 */
  444 #define SCTP_ASCONF             0xc1
  445 
  446 
  447 /* ABORT and SHUTDOWN COMPLETE FLAG */
  448 #define SCTP_HAD_NO_TCB         0x01
  449 
  450 /* Packet dropped flags */
  451 #define SCTP_FROM_MIDDLE_BOX    SCTP_HAD_NO_TCB
  452 #define SCTP_BADCRC             0x02
  453 #define SCTP_PACKET_TRUNCATED   0x04
  454 
  455 /* Flag for ECN -CWR */
  456 #define SCTP_CWR_REDUCE_OVERRIDE 0x01
  457 #define SCTP_CWR_IN_SAME_WINDOW  0x02
  458 
  459 #define SCTP_SAT_NETWORK_MIN    400     /* min ms for RTT to set satellite
  460                                          * time */
  461 #define SCTP_SAT_NETWORK_BURST_INCR  2  /* how many times to multiply maxburst
  462                                          * in sat */
  463 
  464 /* Data Chuck Specific Flags */
  465 #define SCTP_DATA_FRAG_MASK        0x03
  466 #define SCTP_DATA_MIDDLE_FRAG      0x00
  467 #define SCTP_DATA_LAST_FRAG        0x01
  468 #define SCTP_DATA_FIRST_FRAG       0x02
  469 #define SCTP_DATA_NOT_FRAG         0x03
  470 #define SCTP_DATA_UNORDERED        0x04
  471 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
  472 /* ECN Nonce: SACK Chunk Specific Flags */
  473 #define SCTP_SACK_NONCE_SUM        0x01
  474 
  475 /* CMT DAC algorithm SACK flag */
  476 #define SCTP_SACK_CMT_DAC          0x80
  477 
  478 /*
  479  * PCB flags (in sctp_flags bitmask).
  480  * Note the features and flags are meant
  481  * for use by netstat.
  482  */
  483 #define SCTP_PCB_FLAGS_UDPTYPE          0x00000001
  484 #define SCTP_PCB_FLAGS_TCPTYPE          0x00000002
  485 #define SCTP_PCB_FLAGS_BOUNDALL         0x00000004
  486 #define SCTP_PCB_FLAGS_ACCEPTING        0x00000008
  487 #define SCTP_PCB_FLAGS_UNBOUND          0x00000010
  488 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
  489 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
  490 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
  491 /* TCP model support */
  492 
  493 #define SCTP_PCB_FLAGS_CONNECTED        0x00200000
  494 #define SCTP_PCB_FLAGS_IN_TCPPOOL       0x00400000
  495 #define SCTP_PCB_FLAGS_DONT_WAKE        0x00800000
  496 #define SCTP_PCB_FLAGS_WAKEOUTPUT       0x01000000
  497 #define SCTP_PCB_FLAGS_WAKEINPUT        0x02000000
  498 #define SCTP_PCB_FLAGS_BOUND_V6         0x04000000
  499 #define SCTP_PCB_FLAGS_BLOCKING_IO      0x08000000
  500 #define SCTP_PCB_FLAGS_SOCKET_GONE      0x10000000
  501 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE   0x20000000
  502 #define SCTP_PCB_FLAGS_SOCKET_CANT_READ 0x40000000
  503 
  504 /* flags to copy to new PCB */
  505 #define SCTP_PCB_COPY_FLAGS             (SCTP_PCB_FLAGS_BOUNDALL|\
  506                                          SCTP_PCB_FLAGS_WAKEINPUT|\
  507                                          SCTP_PCB_FLAGS_BOUND_V6)
  508 
  509 /*
  510  * PCB Features (in sctp_features bitmask)
  511  */
  512 #define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
  513 #define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002     /* deprecated */
  514 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
  515 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
  516 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
  517 #define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
  518 #define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
  519 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
  520 /* socket options */
  521 #define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
  522 #define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
  523 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400     /* deprecated */
  524 #define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
  525 #define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
  526 #define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
  527 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000     /* deprecated */
  528 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
  529 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
  530 #define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
  531 #define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
  532 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
  533 #define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
  534 #define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
  535 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
  536 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
  537 #define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
  538 #define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
  539 #define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
  540 #define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
  541 #define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
  542 #define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
  543 #define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
  544 
  545 /*-
  546  * mobility_features parameters (by micchie).Note
  547  * these features are applied against the
  548  * sctp_mobility_features flags.. not the sctp_features
  549  * flags.
  550  */
  551 #define SCTP_MOBILITY_BASE               0x00000001
  552 #define SCTP_MOBILITY_FASTHANDOFF        0x00000002
  553 #define SCTP_MOBILITY_PRIM_DELETED       0x00000004
  554 
  555 
  556 #define SCTP_SMALLEST_PMTU 512  /* smallest pmtu allowed when disabling PMTU
  557                                  * discovery */
  558 
  559 #undef SCTP_PACKED
  560 
  561 #include <netinet/sctp_uio.h>
  562 
  563 /* This dictates the size of the packet
  564  * collection buffer. This only applies
  565  * if SCTP_PACKET_LOGGING is enabled in
  566  * your config.
  567  */
  568 #define SCTP_PACKET_LOG_SIZE 65536
  569 
  570 /* Maximum delays and such a user can set for options that
  571  * take ms.
  572  */
  573 #define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
  574 #define SCTP_MAX_HB_INTERVAL 14400000   /* 4 hours in ms */
  575 #define SCTP_MAX_COOKIE_LIFE  3600000   /* 1 hour in ms */
  576 
  577 
  578 /* Types of logging/KTR tracing  that can be enabled via the
  579  * sysctl net.inet.sctp.sctp_logging. You must also enable
  580  * SUBSYS tracing.
  581  * Note that you must have the SCTP option in the kernel
  582  * to enable these as well.
  583  */
  584 #define SCTP_BLK_LOGGING_ENABLE                         0x00000001
  585 #define SCTP_CWND_MONITOR_ENABLE                        0x00000002
  586 #define SCTP_CWND_LOGGING_ENABLE                        0x00000004
  587 #define SCTP_FLIGHT_LOGGING_ENABLE                      0x00000020
  588 #define SCTP_FR_LOGGING_ENABLE                          0x00000040
  589 #define SCTP_LOCK_LOGGING_ENABLE                        0x00000080
  590 #define SCTP_MAP_LOGGING_ENABLE                         0x00000100
  591 #define SCTP_MBCNT_LOGGING_ENABLE                       0x00000200
  592 #define SCTP_MBUF_LOGGING_ENABLE                        0x00000400
  593 #define SCTP_NAGLE_LOGGING_ENABLE                       0x00000800
  594 #define SCTP_RECV_RWND_LOGGING_ENABLE                   0x00001000
  595 #define SCTP_RTTVAR_LOGGING_ENABLE                      0x00002000
  596 #define SCTP_SACK_LOGGING_ENABLE                        0x00004000
  597 #define SCTP_SACK_RWND_LOGGING_ENABLE                   0x00008000
  598 #define SCTP_SB_LOGGING_ENABLE                          0x00010000
  599 #define SCTP_STR_LOGGING_ENABLE                         0x00020000
  600 #define SCTP_WAKE_LOGGING_ENABLE                        0x00040000
  601 #define SCTP_LOG_MAXBURST_ENABLE                        0x00080000
  602 #define SCTP_LOG_RWND_ENABLE                            0x00100000
  603 #define SCTP_LOG_SACK_ARRIVALS_ENABLE                   0x00200000
  604 #define SCTP_LTRACE_CHUNK_ENABLE                        0x00400000
  605 #define SCTP_LTRACE_ERROR_ENABLE                        0x00800000
  606 #define SCTP_LAST_PACKET_TRACING                        0x01000000
  607 #define SCTP_THRESHOLD_LOGGING                          0x02000000
  608 #define SCTP_LOG_AT_SEND_2_SCTP                         0x04000000
  609 #define SCTP_LOG_AT_SEND_2_OUTQ                         0x08000000
  610 #define SCTP_LOG_TRY_ADVANCE                            0x10000000
  611 
  612 #endif                          /* !_NETINET_SCTP_H_ */

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