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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 #ifdef __FreeBSD__
     34 #include <sys/cdefs.h>
     35 __FBSDID("$FreeBSD: head/sys/netinet/sctp.h 264679 2014-04-19 19:21:06Z tuexen $");
     36 #endif
     37 
     38 #ifndef _NETINET_SCTP_H_
     39 #define _NETINET_SCTP_H_
     40 
     41 #if (defined(__APPLE__) || defined(__Userspace_os_Linux) || defined(__Userspace_os_Darwin))
     42 #include <stdint.h>
     43 #endif
     44 
     45 #include <sys/types.h>
     46 
     47 
     48 #if !defined(__Userspace_os_Windows)
     49 #define SCTP_PACKED __attribute__((packed))
     50 #else
     51 #pragma pack (push, 1)
     52 #define SCTP_PACKED
     53 #endif
     54 
     55 /*
     56  * SCTP protocol - RFC4960.
     57  */
     58 struct sctphdr {
     59 	uint16_t src_port;	/* source port */
     60 	uint16_t dest_port;	/* destination port */
     61 	uint32_t v_tag;		/* verification tag of packet */
     62 	uint32_t checksum;	/* CRC32C checksum */
     63 	/* chunks follow... */
     64 } SCTP_PACKED;
     65 
     66 /*
     67  * SCTP Chunks
     68  */
     69 struct sctp_chunkhdr {
     70 	uint8_t chunk_type;	/* chunk type */
     71 	uint8_t chunk_flags;	/* chunk flags */
     72 	uint16_t chunk_length;	/* chunk length */
     73 	/* optional params follow */
     74 } SCTP_PACKED;
     75 
     76 /*
     77  * SCTP chunk parameters
     78  */
     79 struct sctp_paramhdr {
     80 	uint16_t param_type;	/* parameter type */
     81 	uint16_t param_length;	/* parameter length */
     82 } SCTP_PACKED;
     83 
     84 /*
     85  * user socket options: socket API defined
     86  */
     87 /*
     88  * read-write options
     89  */
     90 #define SCTP_RTOINFO			0x00000001
     91 #define SCTP_ASSOCINFO			0x00000002
     92 #define SCTP_INITMSG			0x00000003
     93 #define SCTP_NODELAY			0x00000004
     94 #define SCTP_AUTOCLOSE			0x00000005
     95 #define SCTP_SET_PEER_PRIMARY_ADDR	0x00000006
     96 #define SCTP_PRIMARY_ADDR		0x00000007
     97 #define SCTP_ADAPTATION_LAYER		0x00000008
     98 /* same as above */
     99 #define SCTP_ADAPTION_LAYER		0x00000008
    100 #define SCTP_DISABLE_FRAGMENTS		0x00000009
    101 #define SCTP_PEER_ADDR_PARAMS 		0x0000000a
    102 #define SCTP_DEFAULT_SEND_PARAM		0x0000000b
    103 /* ancillary data/notification interest options */
    104 #define SCTP_EVENTS			0x0000000c /* deprecated */
    105 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
    106 #define SCTP_I_WANT_MAPPED_V4_ADDR	0x0000000d
    107 #define SCTP_MAXSEG 			0x0000000e
    108 #define SCTP_DELAYED_SACK               0x0000000f
    109 #define SCTP_FRAGMENT_INTERLEAVE        0x00000010
    110 #define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
    111 /* authentication support */
    112 #define SCTP_AUTH_CHUNK 		0x00000012
    113 #define SCTP_AUTH_KEY 			0x00000013
    114 #define SCTP_HMAC_IDENT 		0x00000014
    115 #define SCTP_AUTH_ACTIVE_KEY 		0x00000015
    116 #define SCTP_AUTH_DELETE_KEY 		0x00000016
    117 #define SCTP_USE_EXT_RCVINFO		0x00000017
    118 #define SCTP_AUTO_ASCONF		0x00000018 /* rw */
    119 #define SCTP_MAXBURST			0x00000019 /* rw */
    120 #define SCTP_MAX_BURST			0x00000019 /* rw */
    121 /* assoc level context */
    122 #define SCTP_CONTEXT                    0x0000001a /* rw */
    123 /* explicit EOR signalling */
    124 #define SCTP_EXPLICIT_EOR               0x0000001b
    125 #define SCTP_REUSE_PORT                 0x0000001c /* rw */
    126 #define SCTP_AUTH_DEACTIVATE_KEY	0x0000001d
    127 #define SCTP_EVENT                      0x0000001e
    128 #define SCTP_RECVRCVINFO                0x0000001f
    129 #define SCTP_RECVNXTINFO                0x00000020
    130 #define SCTP_DEFAULT_SNDINFO            0x00000021
    131 #define SCTP_DEFAULT_PRINFO             0x00000022
    132 #define SCTP_PEER_ADDR_THLDS            0x00000023
    133 #define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
    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 
    147 /*
    148  * user socket options: BSD implementation specific
    149  */
    150 /*
    151  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
    152  * model if this is turned on then the socket buffer is shared for send
    153  * resources amongst all associations.  The default for the UDP model is that
    154  * is SS_NBIO is set.  Which means all associations have a separate send
    155  * limit BUT they will NOT ever BLOCK instead you will get an error back
    156  * EAGAIN if you try to send too much. If you want the blocking semantics you
    157  * set this option at the cost of sharing one socket send buffer size amongst
    158  * all associations. Peeled off sockets turn this option off and block. But
    159  * since both TCP and peeled off sockets have only one assoc per socket this
    160  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
    161  * model OR peeled off UDP model, but we do allow you to do so. You just use
    162  * the normal syscall to toggle SS_NBIO the way you want.
    163  *
    164  * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
    165  * field.
    166  */
    167 
    168 #define SCTP_ENABLE_STREAM_RESET	0x00000900 /* struct sctp_assoc_value */
    169 #define SCTP_RESET_STREAMS		0x00000901 /* struct sctp_reset_streams */
    170 #define SCTP_RESET_ASSOC		0x00000902 /* sctp_assoc_t */
    171 #define SCTP_ADD_STREAMS		0x00000903 /* struct sctp_add_streams */
    172 
    173 /* For enable stream reset */
    174 #define SCTP_ENABLE_RESET_STREAM_REQ 	0x00000001
    175 #define SCTP_ENABLE_RESET_ASSOC_REQ 	0x00000002
    176 #define SCTP_ENABLE_CHANGE_ASSOC_REQ 	0x00000004
    177 #define SCTP_ENABLE_VALUE_MASK		0x00000007
    178 /* For reset streams */
    179 #define SCTP_STREAM_RESET_INCOMING	0x00000001
    180 #define SCTP_STREAM_RESET_OUTGOING	0x00000002
    181 
    182 
    183 /* here on down are more implementation specific */
    184 #define SCTP_SET_DEBUG_LEVEL		0x00001005
    185 #define SCTP_CLR_STAT_LOG               0x00001007
    186 /* CMT ON/OFF socket option */
    187 #define SCTP_CMT_ON_OFF                 0x00001200
    188 #define SCTP_CMT_USE_DAC                0x00001201
    189 /* JRS - Pluggable Congestion Control Socket option */
    190 #define SCTP_PLUGGABLE_CC               0x00001202
    191 /* RS - Pluggable Stream Scheduling Socket option */
    192 #define SCTP_PLUGGABLE_SS		0x00001203
    193 #define SCTP_SS_VALUE			0x00001204
    194 #define SCTP_CC_OPTION			0x00001205 /* Options for CC modules */
    195 /* read only */
    196 #define SCTP_GET_SNDBUF_USE		0x00001101
    197 #define SCTP_GET_STAT_LOG		0x00001103
    198 #define SCTP_PCB_STATUS			0x00001104
    199 #define SCTP_GET_NONCE_VALUES           0x00001105
    200 
    201 
    202 /* Special hook for dynamically setting primary for all assoc's,
    203  * this is a write only option that requires root privilege.
    204  */
    205 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
    206 
    207 /* VRF (virtual router feature) and multi-VRF support
    208  * options. VRF's provide splits within a router
    209  * that give the views of multiple routers. A
    210  * standard host, without VRF support, is just
    211  * a single VRF. If VRF's are supported then
    212  * the transport must be VRF aware. This means
    213  * that every socket call coming in must be directed
    214  * within the endpoint to one of the VRF's it belongs
    215  * to. The endpoint, before binding, may select
    216  * the "default" VRF it is in by using a set socket
    217  * option with SCTP_VRF_ID. This will also
    218  * get propagated to the default VRF. Once the
    219  * endpoint binds an address then it CANNOT add
    220  * additional VRF's to become a Multi-VRF endpoint.
    221  *
    222  * Before BINDING additional VRF's can be added with
    223  * the SCTP_ADD_VRF_ID call or deleted with
    224  * SCTP_DEL_VRF_ID.
    225  *
    226  * Associations are ALWAYS contained inside a single
    227  * VRF. They cannot reside in two (or more) VRF's. Incoming
    228  * packets, assuming the router is VRF aware, can always
    229  * tell us what VRF they arrived on. A host not supporting
    230  * any VRF's will find that the packets always arrived on the
    231  * single VRF that the host has.
    232  *
    233  */
    234 
    235 #define SCTP_VRF_ID			0x00003001
    236 #define SCTP_ADD_VRF_ID			0x00003002
    237 #define SCTP_GET_VRF_IDS		0x00003003
    238 #define SCTP_GET_ASOC_VRF               0x00003004
    239 #define SCTP_DEL_VRF_ID                 0x00003005
    240 
    241 /*
    242  * If you enable packet logging you can get
    243  * a poor mans ethereal output in binary
    244  * form. Note this is a compile option to
    245  * the kernel,  SCTP_PACKET_LOGGING, and
    246  * without it in your kernel you
    247  * will get a EOPNOTSUPP
    248  */
    249 #define SCTP_GET_PACKET_LOG             0x00004001
    250 
    251 /*
    252  * hidden implementation specific options these are NOT user visible (should
    253  * move out of sctp.h)
    254  */
    255 /* sctp_bindx() flags as hidden socket options */
    256 #define SCTP_BINDX_ADD_ADDR		0x00008001
    257 #define SCTP_BINDX_REM_ADDR		0x00008002
    258 /* Hidden socket option that gets the addresses */
    259 #define SCTP_GET_PEER_ADDRESSES		0x00008003
    260 #define SCTP_GET_LOCAL_ADDRESSES	0x00008004
    261 /* return the total count in bytes needed to hold all local addresses bound */
    262 #define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
    263 /* Return the total count in bytes needed to hold the remote address */
    264 #define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
    265 /* hidden option for connectx */
    266 #define SCTP_CONNECT_X			0x00008007
    267 /* hidden option for connectx_delayed, part of sendx */
    268 #define SCTP_CONNECT_X_DELAYED		0x00008008
    269 #define SCTP_CONNECT_X_COMPLETE         0x00008009
    270 /* hidden socket option based sctp_peeloff */
    271 #define SCTP_PEELOFF                    0x0000800a
    272 /* the real worker for sctp_getaddrlen() */
    273 #define SCTP_GET_ADDR_LEN               0x0000800b
    274 #if defined(__APPLE__)
    275 /* temporary workaround for Apple listen() issue, no args used */
    276 #define SCTP_LISTEN_FIX			0x0000800c
    277 #endif
    278 #if defined(__Windows__)
    279 /* workaround for Cygwin on Windows: returns the SOCKET handle */
    280 #define SCTP_GET_HANDLE			0x0000800d
    281 #endif
    282 /* Debug things that need to be purged */
    283 #define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
    284 
    285 /* JRS - Supported congestion control modules for pluggable
    286  * congestion control
    287  */
    288 /* Standard TCP Congestion Control */
    289 #define SCTP_CC_RFC2581		0x00000000
    290 /* High Speed TCP Congestion Control (Floyd) */
    291 #define SCTP_CC_HSTCP		0x00000001
    292 /* HTCP Congestion Control */
    293 #define SCTP_CC_HTCP		0x00000002
    294 /* RTCC Congestion Control - RFC2581 plus */
    295 #define SCTP_CC_RTCC            0x00000003
    296 
    297 #define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
    298 #define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
    299 #define SCTP_CC_OPT_STEADY_STEP         0x00002002
    300 
    301 #define SCTP_CMT_OFF            0
    302 #define SCTP_CMT_BASE           1
    303 #define SCTP_CMT_RPV1           2
    304 #define SCTP_CMT_RPV2           3
    305 #define SCTP_CMT_MPTCP          4
    306 #define SCTP_CMT_MAX            SCTP_CMT_MPTCP
    307 
    308 /* RS - Supported stream scheduling modules for pluggable
    309  * stream scheduling
    310  */
    311 /* Default simple round-robin */
    312 #define SCTP_SS_DEFAULT			0x00000000
    313 /* Real round-robin */
    314 #define SCTP_SS_ROUND_ROBIN		0x00000001
    315 /* Real round-robin per packet */
    316 #define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
    317 /* Priority */
    318 #define SCTP_SS_PRIORITY		0x00000003
    319 /* Fair Bandwidth */
    320 #define SCTP_SS_FAIR_BANDWITH		0x00000004
    321 /* First-come, first-serve */
    322 #define SCTP_SS_FIRST_COME		0x00000005
    323 
    324 
    325 /* fragment interleave constants
    326  * setting must be one of these or
    327  * EINVAL returned.
    328  */
    329 #define SCTP_FRAG_LEVEL_0    0x00000000
    330 #define SCTP_FRAG_LEVEL_1    0x00000001
    331 #define SCTP_FRAG_LEVEL_2    0x00000002
    332 
    333 /*
    334  * user state values
    335  */
    336 #define SCTP_CLOSED			0x0000
    337 #define SCTP_BOUND			0x1000
    338 #define SCTP_LISTEN			0x2000
    339 #define SCTP_COOKIE_WAIT		0x0002
    340 #define SCTP_COOKIE_ECHOED		0x0004
    341 #define SCTP_ESTABLISHED		0x0008
    342 #define SCTP_SHUTDOWN_SENT		0x0010
    343 #define SCTP_SHUTDOWN_RECEIVED		0x0020
    344 #define SCTP_SHUTDOWN_ACK_SENT		0x0040
    345 #define SCTP_SHUTDOWN_PENDING		0x0080
    346 
    347 /*
    348  * SCTP operational error codes (user visible)
    349  */
    350 #define SCTP_CAUSE_NO_ERROR		0x0000
    351 #define SCTP_CAUSE_INVALID_STREAM	0x0001
    352 #define SCTP_CAUSE_MISSING_PARAM	0x0002
    353 #define SCTP_CAUSE_STALE_COOKIE		0x0003
    354 #define SCTP_CAUSE_OUT_OF_RESC		0x0004
    355 #define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
    356 #define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
    357 #define SCTP_CAUSE_INVALID_PARAM	0x0007
    358 #define SCTP_CAUSE_UNRECOG_PARAM	0x0008
    359 #define SCTP_CAUSE_NO_USER_DATA		0x0009
    360 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
    361 #define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
    362 #define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
    363 #define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
    364 
    365 /* Error causes from RFC5061 */
    366 #define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
    367 #define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
    368 #define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
    369 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
    370 #define SCTP_CAUSE_REQUEST_REFUSED	0x00a4
    371 
    372 /* Error causes from nat-draft */
    373 #define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
    374 #define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
    375 
    376 /* Error causes from RFC4895 */
    377 #define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
    378 
    379 /*
    380  * error cause parameters (user visible)
    381  */
    382 struct sctp_gen_error_cause {
    383 	uint16_t code;
    384 	uint16_t length;
    385 	uint8_t info[];
    386 } SCTP_PACKED;
    387 
    388 struct sctp_error_cause {
    389 	uint16_t code;
    390 	uint16_t length;
    391 	/* optional cause-specific info may follow */
    392 } SCTP_PACKED;
    393 
    394 struct sctp_error_invalid_stream {
    395 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STREAM */
    396 	uint16_t stream_id;	/* stream id of the DATA in error */
    397 	uint16_t reserved;
    398 } SCTP_PACKED;
    399 
    400 struct sctp_error_missing_param {
    401 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARAM */
    402 	uint32_t num_missing_params;	/* number of missing parameters */
    403 	/* uint16_t param_type's follow */
    404 } SCTP_PACKED;
    405 
    406 struct sctp_error_stale_cookie {
    407 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE */
    408 	uint32_t stale_time;	/* time in usec of staleness */
    409 } SCTP_PACKED;
    410 
    411 struct sctp_error_out_of_resource {
    412 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOURCES */
    413 } SCTP_PACKED;
    414 
    415 struct sctp_error_unresolv_addr {
    416 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
    417 
    418 } SCTP_PACKED;
    419 
    420 struct sctp_error_unrecognized_chunk {
    421 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_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 /*
    431  * Main SCTP chunk types we place these here so natd and f/w's in user land
    432  * can find them.
    433  */
    434 /************0x00 series ***********/
    435 #define SCTP_DATA		0x00
    436 #define SCTP_INITIATION		0x01
    437 #define SCTP_INITIATION_ACK	0x02
    438 #define SCTP_SELECTIVE_ACK	0x03
    439 #define SCTP_HEARTBEAT_REQUEST	0x04
    440 #define SCTP_HEARTBEAT_ACK	0x05
    441 #define SCTP_ABORT_ASSOCIATION	0x06
    442 #define SCTP_SHUTDOWN		0x07
    443 #define SCTP_SHUTDOWN_ACK	0x08
    444 #define SCTP_OPERATION_ERROR	0x09
    445 #define SCTP_COOKIE_ECHO	0x0a
    446 #define SCTP_COOKIE_ACK		0x0b
    447 #define SCTP_ECN_ECHO		0x0c
    448 #define SCTP_ECN_CWR		0x0d
    449 #define SCTP_SHUTDOWN_COMPLETE	0x0e
    450 /* RFC4895 */
    451 #define SCTP_AUTHENTICATION     0x0f
    452 /* EY nr_sack chunk id*/
    453 #define SCTP_NR_SELECTIVE_ACK	0x10
    454 /************0x40 series ***********/
    455 /************0x80 series ***********/
    456 /* RFC5061 */
    457 #define	SCTP_ASCONF_ACK		0x80
    458 /* draft-ietf-stewart-pktdrpsctp */
    459 #define SCTP_PACKET_DROPPED	0x81
    460 /* draft-ietf-stewart-strreset-xxx */
    461 #define SCTP_STREAM_RESET       0x82
    462 
    463 /* RFC4820                         */
    464 #define SCTP_PAD_CHUNK          0x84
    465 /************0xc0 series ***********/
    466 /* RFC3758 */
    467 #define SCTP_FORWARD_CUM_TSN	0xc0
    468 /* RFC5061 */
    469 #define SCTP_ASCONF		0xc1
    470 
    471 
    472 /* ABORT and SHUTDOWN COMPLETE FLAG */
    473 #define SCTP_HAD_NO_TCB		0x01
    474 
    475 /* Packet dropped flags */
    476 #define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
    477 #define SCTP_BADCRC		0x02
    478 #define SCTP_PACKET_TRUNCATED	0x04
    479 
    480 /* Flag for ECN -CWR */
    481 #define SCTP_CWR_REDUCE_OVERRIDE 0x01
    482 #define SCTP_CWR_IN_SAME_WINDOW  0x02
    483 
    484 #define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
    485 					 * time */
    486 #define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
    487 					 * in sat */
    488 
    489 /* Data Chuck Specific Flags */
    490 #define SCTP_DATA_FRAG_MASK        0x03
    491 #define SCTP_DATA_MIDDLE_FRAG      0x00
    492 #define SCTP_DATA_LAST_FRAG        0x01
    493 #define SCTP_DATA_FIRST_FRAG       0x02
    494 #define SCTP_DATA_NOT_FRAG         0x03
    495 #define SCTP_DATA_UNORDERED        0x04
    496 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
    497 /* ECN Nonce: SACK Chunk Specific Flags */
    498 #define SCTP_SACK_NONCE_SUM        0x01
    499 
    500 /* CMT DAC algorithm SACK flag */
    501 #define SCTP_SACK_CMT_DAC          0x80
    502 
    503 /*
    504  * PCB flags (in sctp_flags bitmask).
    505  * Note the features and flags are meant
    506  * for use by netstat.
    507  */
    508 #define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
    509 #define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
    510 #define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
    511 #define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
    512 #define SCTP_PCB_FLAGS_UNBOUND		0x00000010
    513 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
    514 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
    515 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
    516 /* TCP model support */
    517 
    518 #define SCTP_PCB_FLAGS_CONNECTED	0x00200000
    519 #define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
    520 #define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
    521 #define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
    522 #define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
    523 #define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
    524 #define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
    525 #define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
    526 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
    527 #define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
    528 #if defined(__Userspace__)
    529 #define SCTP_PCB_FLAGS_BOUND_CONN       0x80000000
    530 
    531 /* flags to copy to new PCB */
    532 #define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
    533 					 SCTP_PCB_FLAGS_WAKEINPUT|\
    534 					 SCTP_PCB_FLAGS_BOUND_V6|\
    535 					 SCTP_PCB_FLAGS_BOUND_CONN)
    536 #else
    537 
    538 /* flags to copy to new PCB */
    539 #define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
    540 					 SCTP_PCB_FLAGS_WAKEINPUT|\
    541 					 SCTP_PCB_FLAGS_BOUND_V6)
    542 #endif
    543 
    544 /*
    545  * PCB Features (in sctp_features bitmask)
    546  */
    547 #define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
    548 #define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002 /* deprecated */
    549 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
    550 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
    551 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
    552 #define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
    553 #define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
    554 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
    555 /* socket options */
    556 #define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
    557 #define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
    558 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400 /* deprecated */
    559 #define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
    560 #define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
    561 #define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
    562 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000 /* deprecated */
    563 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
    564 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
    565 #define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
    566 #define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
    567 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
    568 #define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
    569 #define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
    570 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
    571 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
    572 #define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
    573 #define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
    574 #define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
    575 #define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
    576 #define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
    577 #define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
    578 #define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
    579 
    580 /*-
    581  * mobility_features parameters (by micchie).Note
    582  * these features are applied against the
    583  * sctp_mobility_features flags.. not the sctp_features
    584  * flags.
    585  */
    586 #define SCTP_MOBILITY_BASE               0x00000001
    587 #define SCTP_MOBILITY_FASTHANDOFF        0x00000002
    588 #define SCTP_MOBILITY_PRIM_DELETED       0x00000004
    589 
    590 
    591 #define SCTP_SMALLEST_PMTU 512	 /* smallest pmtu allowed when disabling PMTU discovery */
    592 
    593 #if defined(__Userspace_os_Windows)
    594 #pragma pack()
    595 #endif
    596 #undef SCTP_PACKED
    597 
    598 #include <netinet/sctp_uio.h>
    599 
    600 /* This dictates the size of the packet
    601  * collection buffer. This only applies
    602  * if SCTP_PACKET_LOGGING is enabled in
    603  * your config.
    604  */
    605 #define SCTP_PACKET_LOG_SIZE 65536
    606 
    607 /* Maximum delays and such a user can set for options that
    608  * take ms.
    609  */
    610 #define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
    611 #define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */
    612 #define SCTP_MAX_COOKIE_LIFE  3600000 /* 1 hour in ms */
    613 
    614 
    615 /* Types of logging/KTR tracing  that can be enabled via the
    616  * sysctl net.inet.sctp.sctp_logging. You must also enable
    617  * SUBSYS tracing.
    618  * Note that you must have the SCTP option in the kernel
    619  * to enable these as well.
    620  */
    621 #define SCTP_BLK_LOGGING_ENABLE				0x00000001
    622 #define SCTP_CWND_MONITOR_ENABLE			0x00000002
    623 #define SCTP_CWND_LOGGING_ENABLE			0x00000004
    624 #define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
    625 #define SCTP_FR_LOGGING_ENABLE				0x00000040
    626 #define SCTP_LOCK_LOGGING_ENABLE			0x00000080
    627 #define SCTP_MAP_LOGGING_ENABLE				0x00000100
    628 #define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
    629 #define SCTP_MBUF_LOGGING_ENABLE			0x00000400
    630 #define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
    631 #define SCTP_RECV_RWND_LOGGING_ENABLE			0x00001000
    632 #define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
    633 #define SCTP_SACK_LOGGING_ENABLE			0x00004000
    634 #define SCTP_SACK_RWND_LOGGING_ENABLE			0x00008000
    635 #define SCTP_SB_LOGGING_ENABLE				0x00010000
    636 #define SCTP_STR_LOGGING_ENABLE				0x00020000
    637 #define SCTP_WAKE_LOGGING_ENABLE			0x00040000
    638 #define SCTP_LOG_MAXBURST_ENABLE			0x00080000
    639 #define SCTP_LOG_RWND_ENABLE    			0x00100000
    640 #define SCTP_LOG_SACK_ARRIVALS_ENABLE			0x00200000
    641 #define SCTP_LTRACE_CHUNK_ENABLE			0x00400000
    642 #define SCTP_LTRACE_ERROR_ENABLE			0x00800000
    643 #define SCTP_LAST_PACKET_TRACING			0x01000000
    644 #define SCTP_THRESHOLD_LOGGING				0x02000000
    645 #define SCTP_LOG_AT_SEND_2_SCTP				0x04000000
    646 #define SCTP_LOG_AT_SEND_2_OUTQ				0x08000000
    647 #define SCTP_LOG_TRY_ADVANCE				0x10000000
    648 
    649 #endif				/* !_NETINET_SCTP_H_ */
    650