The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_constants.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    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("$FreeBSD$");
   37 
   38 #ifndef _NETINET_SCTP_CONSTANTS_H_
   39 #define _NETINET_SCTP_CONSTANTS_H_
   40 
   41 /* IANA assigned port number for SCTP over UDP encapsulation */
   42 #define SCTP_OVER_UDP_TUNNELING_PORT 9899
   43 
   44 /* Number of packets to get before sack sent by default */
   45 #define SCTP_DEFAULT_SACK_FREQ 2
   46 
   47 /* Address limit - This variable is calculated
   48  * based on an 65535 byte max ip packet. We take out 100 bytes
   49  * for the cookie, 40 bytes for a v6 header and 32
   50  * bytes for the init structure. A second init structure
   51  * for the init-ack and then finally a third one for the
   52  * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes.
   53  * This leaves 65299 bytes for addresses. We throw out the 299 bytes.
   54  * Now whatever we send in the INIT() we need to allow to get back in the
   55  * INIT-ACK plus all the values from INIT and INIT-ACK
   56  * listed in the cookie. Plus we need some overhead for
   57  * maybe copied parameters in the COOKIE. If we
   58  * allow 1080 addresses, and each side has 1080 V6 addresses
   59  * that will be 21600 bytes. In the INIT-ACK we will
   60  * see the INIT-ACK 21600 + 43200 in the cookie. This leaves
   61  * about 500 bytes slack for misc things in the cookie.
   62  */
   63 #define SCTP_ADDRESS_LIMIT 1080
   64 
   65 /* We need at least 2k of space for us, inits
   66  * larger than that lets abort.
   67  */
   68 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048)
   69 
   70 /* Largest length of a chunk */
   71 #define SCTP_MAX_CHUNK_LENGTH 0xffff
   72 /* Largest length of an error cause */
   73 #define SCTP_MAX_CAUSE_LENGTH 0xffff
   74 /* Number of addresses where we just skip the counting */
   75 #define SCTP_COUNT_LIMIT 40
   76 
   77 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000)
   78 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000)
   79 
   80 /* Number of ticks to delay before running
   81  * iterator on an address change.
   82  */
   83 #define SCTP_ADDRESS_TICK_DELAY 2
   84 
   85 #define SCTP_VERSION_STRING "KAME-BSD 1.1"
   86 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */
   87 #define SCTP_AUDIT_SIZE 256
   88 
   89 #define SCTP_KTRHEAD_NAME "sctp_iterator"
   90 #define SCTP_KTHREAD_PAGES 0
   91 
   92 #define SCTP_MCORE_NAME "sctp_core_worker"
   93 
   94 /* If you support Multi-VRF how big to
   95  * make the initial array of VRF's to.
   96  */
   97 #define SCTP_DEFAULT_VRF_SIZE 4
   98 
   99 /* JRS - Values defined for the HTCP algorithm */
  100 #define ALPHA_BASE      (1<<7)  /* 1.0 with shift << 7 */
  101 #define BETA_MIN        (1<<6)  /* 0.5 with shift << 7 */
  102 #define BETA_MAX        102     /* 0.8 with shift << 7 */
  103 
  104 /* Places that CWND log can happen from */
  105 #define SCTP_CWND_LOG_FROM_FR   1
  106 #define SCTP_CWND_LOG_FROM_RTX  2
  107 #define SCTP_CWND_LOG_FROM_BRST 3
  108 #define SCTP_CWND_LOG_FROM_SS   4
  109 #define SCTP_CWND_LOG_FROM_CA   5
  110 #define SCTP_CWND_LOG_FROM_SAT  6
  111 #define SCTP_BLOCK_LOG_INTO_BLK 7
  112 #define SCTP_BLOCK_LOG_OUTOF_BLK 8
  113 #define SCTP_BLOCK_LOG_CHECK     9
  114 #define SCTP_STR_LOG_FROM_INTO_STRD 10
  115 #define SCTP_STR_LOG_FROM_IMMED_DEL 11
  116 #define SCTP_STR_LOG_FROM_INSERT_HD 12
  117 #define SCTP_STR_LOG_FROM_INSERT_MD 13
  118 #define SCTP_STR_LOG_FROM_INSERT_TL 14
  119 #define SCTP_STR_LOG_FROM_MARK_TSN  15
  120 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16
  121 #define SCTP_FR_LOG_BIGGEST_TSNS    17
  122 #define SCTP_FR_LOG_STRIKE_TEST     18
  123 #define SCTP_FR_LOG_STRIKE_CHUNK    19
  124 #define SCTP_FR_T3_TIMEOUT          20
  125 #define SCTP_MAP_PREPARE_SLIDE      21
  126 #define SCTP_MAP_SLIDE_FROM         22
  127 #define SCTP_MAP_SLIDE_RESULT       23
  128 #define SCTP_MAP_SLIDE_CLEARED      24
  129 #define SCTP_MAP_SLIDE_NONE         25
  130 #define SCTP_FR_T3_MARK_TIME        26
  131 #define SCTP_FR_T3_MARKED           27
  132 #define SCTP_FR_T3_STOPPED          28
  133 #define SCTP_FR_MARKED              30
  134 #define SCTP_CWND_LOG_NOADV_SS      31
  135 #define SCTP_CWND_LOG_NOADV_CA      32
  136 #define SCTP_MAX_BURST_APPLIED      33
  137 #define SCTP_MAX_IFP_APPLIED        34
  138 #define SCTP_MAX_BURST_ERROR_STOP   35
  139 #define SCTP_INCREASE_PEER_RWND     36
  140 #define SCTP_DECREASE_PEER_RWND     37
  141 #define SCTP_SET_PEER_RWND_VIA_SACK 38
  142 #define SCTP_LOG_MBCNT_INCREASE     39
  143 #define SCTP_LOG_MBCNT_DECREASE     40
  144 #define SCTP_LOG_MBCNT_CHKSET       41
  145 #define SCTP_LOG_NEW_SACK           42
  146 #define SCTP_LOG_TSN_ACKED          43
  147 #define SCTP_LOG_TSN_REVOKED        44
  148 #define SCTP_LOG_LOCK_TCB           45
  149 #define SCTP_LOG_LOCK_INP           46
  150 #define SCTP_LOG_LOCK_SOCK          47
  151 #define SCTP_LOG_LOCK_SOCKBUF_R     48
  152 #define SCTP_LOG_LOCK_SOCKBUF_S     49
  153 #define SCTP_LOG_LOCK_CREATE        50
  154 #define SCTP_LOG_INITIAL_RTT        51
  155 #define SCTP_LOG_RTTVAR             52
  156 #define SCTP_LOG_SBALLOC            53
  157 #define SCTP_LOG_SBFREE             54
  158 #define SCTP_LOG_SBRESULT           55
  159 #define SCTP_FR_DUPED               56
  160 #define SCTP_FR_MARKED_EARLY        57
  161 #define SCTP_FR_CWND_REPORT         58
  162 #define SCTP_FR_CWND_REPORT_START   59
  163 #define SCTP_FR_CWND_REPORT_STOP    60
  164 #define SCTP_CWND_LOG_FROM_SEND     61
  165 #define SCTP_CWND_INITIALIZATION    62
  166 #define SCTP_CWND_LOG_FROM_T3       63
  167 #define SCTP_CWND_LOG_FROM_SACK     64
  168 #define SCTP_CWND_LOG_NO_CUMACK     65
  169 #define SCTP_CWND_LOG_FROM_RESEND   66
  170 #define SCTP_FR_LOG_CHECK_STRIKE    67
  171 #define SCTP_SEND_NOW_COMPLETES     68
  172 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69
  173 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS  70
  174 #define SCTP_LOG_FREE_SENT             71
  175 #define SCTP_NAGLE_APPLIED          72
  176 #define SCTP_NAGLE_SKIPPED          73
  177 #define SCTP_WAKESND_FROM_SACK      74
  178 #define SCTP_WAKESND_FROM_FWDTSN    75
  179 #define SCTP_NOWAKE_FROM_SACK       76
  180 #define SCTP_CWNDLOG_PRESEND        77
  181 #define SCTP_CWNDLOG_ENDSEND        78
  182 #define SCTP_AT_END_OF_SACK         79
  183 #define SCTP_REASON_FOR_SC          80
  184 #define SCTP_BLOCK_LOG_INTO_BLKA    81
  185 #define SCTP_ENTER_USER_RECV        82
  186 #define SCTP_USER_RECV_SACKS        83
  187 #define SCTP_SORECV_BLOCKSA         84
  188 #define SCTP_SORECV_BLOCKSB         85
  189 #define SCTP_SORECV_DONE            86
  190 #define SCTP_SACK_RWND_UPDATE       87
  191 #define SCTP_SORECV_ENTER           88
  192 #define SCTP_SORECV_ENTERPL         89
  193 #define SCTP_MBUF_INPUT             90
  194 #define SCTP_MBUF_IALLOC            91
  195 #define SCTP_MBUF_IFREE             92
  196 #define SCTP_MBUF_ICOPY             93
  197 #define SCTP_MBUF_SPLIT             94
  198 #define SCTP_SORCV_FREECTL          95
  199 #define SCTP_SORCV_DOESCPY          96
  200 #define SCTP_SORCV_DOESLCK          97
  201 #define SCTP_SORCV_DOESADJ          98
  202 #define SCTP_SORCV_BOTWHILE         99
  203 #define SCTP_SORCV_PASSBF          100
  204 #define SCTP_SORCV_ADJD            101
  205 #define SCTP_UNKNOWN_MAX           102
  206 #define SCTP_RANDY_STUFF           103
  207 #define SCTP_RANDY_STUFF1          104
  208 #define SCTP_STRMOUT_LOG_ASSIGN    105
  209 #define SCTP_STRMOUT_LOG_SEND      106
  210 #define SCTP_FLIGHT_LOG_DOWN_CA    107
  211 #define SCTP_FLIGHT_LOG_UP         108
  212 #define SCTP_FLIGHT_LOG_DOWN_GAP   109
  213 #define SCTP_FLIGHT_LOG_DOWN_RSND  110
  214 #define SCTP_FLIGHT_LOG_UP_RSND    111
  215 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO    112
  216 #define SCTP_FLIGHT_LOG_DOWN_WP    113
  217 #define SCTP_FLIGHT_LOG_UP_REVOKE  114
  218 #define SCTP_FLIGHT_LOG_DOWN_PDRP  115
  219 #define SCTP_FLIGHT_LOG_DOWN_PMTU  116
  220 #define SCTP_SACK_LOG_NORMAL       117
  221 #define SCTP_SACK_LOG_EXPRESS      118
  222 #define SCTP_MAP_TSN_ENTERS        119
  223 #define SCTP_THRESHOLD_CLEAR       120
  224 #define SCTP_THRESHOLD_INCR        121
  225 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122
  226 #define SCTP_FWD_TSN_CHECK         123
  227 #define SCTP_LOG_MAX_TYPES 124
  228 /*
  229  * To turn on various logging, you must first enable 'options KTR' and
  230  * you might want to bump the entires 'options KTR_ENTRIES=80000'.
  231  * To get something to log you define one of the logging defines.
  232  * (see LINT).
  233  *
  234  * This gets the compile in place, but you still need to turn the
  235  * logging flag on too in the sysctl (see in sctp.h).
  236  */
  237 
  238 #define SCTP_LOG_EVENT_UNKNOWN 0
  239 #define SCTP_LOG_EVENT_CWND  1
  240 #define SCTP_LOG_EVENT_BLOCK 2
  241 #define SCTP_LOG_EVENT_STRM  3
  242 #define SCTP_LOG_EVENT_FR    4
  243 #define SCTP_LOG_EVENT_MAP   5
  244 #define SCTP_LOG_EVENT_MAXBURST 6
  245 #define SCTP_LOG_EVENT_RWND  7
  246 #define SCTP_LOG_EVENT_MBCNT 8
  247 #define SCTP_LOG_EVENT_SACK  9
  248 #define SCTP_LOG_LOCK_EVENT 10
  249 #define SCTP_LOG_EVENT_RTT  11
  250 #define SCTP_LOG_EVENT_SB   12
  251 #define SCTP_LOG_EVENT_NAGLE 13
  252 #define SCTP_LOG_EVENT_WAKE 14
  253 #define SCTP_LOG_MISC_EVENT 15
  254 #define SCTP_LOG_EVENT_CLOSE 16
  255 #define SCTP_LOG_EVENT_MBUF 17
  256 #define SCTP_LOG_CHUNK_PROC 18
  257 #define SCTP_LOG_ERROR_RET  19
  258 
  259 #define SCTP_LOG_MAX_EVENT 20
  260 
  261 #define SCTP_LOCK_UNKNOWN 2
  262 
  263 /* number of associations by default for zone allocation */
  264 #define SCTP_MAX_NUM_OF_ASOC    40000
  265 /* how many addresses per assoc remote and local */
  266 #define SCTP_SCALE_FOR_ADDR     2
  267 
  268 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */
  269 #define SCTP_DEFAULT_MULTIPLE_ASCONFS   0
  270 
  271 /*
  272  * Threshold for rwnd updates, we have to read (sb_hiwat >>
  273  * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a
  274  * window update sack. When we look, we compare the last rwnd we sent vs the
  275  * current rwnd. It too must be greater than this value. Using 3 divdes the
  276  * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need
  277  * to read 8k. This seems about right.. I hope :-D.. we do set a
  278  * min of a MTU on it so if the rwnd is real small we will insist
  279  * on a full MTU of 1500 bytes.
  280  */
  281 #define SCTP_RWND_HIWAT_SHIFT 3
  282 
  283 /* How much of the rwnd must the
  284  * message be taking up to start partial delivery.
  285  * We calculate this by shifing the hi_water (recv_win)
  286  * left the following .. set to 1, when a message holds
  287  * 1/2 the rwnd. If we set it to 2 when a message holds
  288  * 1/4 the rwnd...etc..
  289  */
  290 
  291 #define SCTP_PARTIAL_DELIVERY_SHIFT 1
  292 
  293 /*
  294  * default HMAC for cookies, etc... use one of the AUTH HMAC id's
  295  * SCTP_HMAC is the HMAC_ID to use
  296  * SCTP_SIGNATURE_SIZE is the digest length
  297  */
  298 #define SCTP_HMAC               SCTP_AUTH_HMAC_ID_SHA1
  299 #define SCTP_SIGNATURE_SIZE     SCTP_AUTH_DIGEST_LEN_SHA1
  300 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE
  301 
  302 /*
  303  * the SCTP protocol signature this includes the version number encoded in
  304  * the last 4 bits of the signature.
  305  */
  306 #define PROTO_SIGNATURE_A       0x30000000
  307 #define SCTP_VERSION_NUMBER     0x3
  308 
  309 #define MAX_TSN 0xffffffff
  310 
  311 /* how many executions every N tick's */
  312 #define SCTP_ITERATOR_MAX_AT_ONCE 20
  313 
  314 /* number of clock ticks between iterator executions */
  315 #define SCTP_ITERATOR_TICKS 1
  316 
  317 /*
  318  * option: If you comment out the following you will receive the old behavior
  319  * of obeying cwnd for the fast retransmit algorithm. With this defined a FR
  320  * happens right away with-out waiting for the flightsize to drop below the
  321  * cwnd value (which is reduced by the FR to 1/2 the inflight packets).
  322  */
  323 #define SCTP_IGNORE_CWND_ON_FR 1
  324 
  325 /*
  326  * Adds implementors guide behavior to only use newest highest update in SACK
  327  * gap ack's to figure out if you need to stroke a chunk for FR.
  328  */
  329 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1
  330 
  331 /* default max I can burst out after a fast retransmit, 0 disables it */
  332 #define SCTP_DEF_MAX_BURST 4
  333 #define SCTP_DEF_HBMAX_BURST 4
  334 #define SCTP_DEF_FRMAX_BURST 4
  335 
  336 /* RTO calculation flag to say if it
  337  * is safe to determine local lan or not.
  338  */
  339 #define SCTP_RTT_FROM_NON_DATA 0
  340 #define SCTP_RTT_FROM_DATA     1
  341 
  342 #define PR_SCTP_UNORDERED_FLAG 0x0001
  343 
  344 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */
  345 #define SCTP_FIRST_MBUF_RESV 68
  346 /* Packet transmit states in the sent field */
  347 #define SCTP_DATAGRAM_UNSENT            0
  348 #define SCTP_DATAGRAM_SENT              1
  349 #define SCTP_DATAGRAM_RESEND1           2       /* not used (in code, but may
  350                                                  * hit this value) */
  351 #define SCTP_DATAGRAM_RESEND2           3       /* not used (in code, but may
  352                                                  * hit this value) */
  353 #define SCTP_DATAGRAM_RESEND            4
  354 #define SCTP_DATAGRAM_ACKED             10010
  355 #define SCTP_DATAGRAM_MARKED            20010
  356 #define SCTP_FORWARD_TSN_SKIP           30010
  357 #define SCTP_DATAGRAM_NR_ACKED          40010
  358 
  359 /* chunk output send from locations */
  360 #define SCTP_OUTPUT_FROM_USR_SEND       0
  361 #define SCTP_OUTPUT_FROM_T3             1
  362 #define SCTP_OUTPUT_FROM_INPUT_ERROR    2
  363 #define SCTP_OUTPUT_FROM_CONTROL_PROC   3
  364 #define SCTP_OUTPUT_FROM_SACK_TMR       4
  365 #define SCTP_OUTPUT_FROM_SHUT_TMR       5
  366 #define SCTP_OUTPUT_FROM_HB_TMR         6
  367 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR   7
  368 #define SCTP_OUTPUT_FROM_ASCONF_TMR     8
  369 #define SCTP_OUTPUT_FROM_STRRST_TMR     9
  370 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR  10
  371 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR   11
  372 #define SCTP_OUTPUT_FROM_STRRST_REQ     12
  373 #define SCTP_OUTPUT_FROM_USR_RCVD       13
  374 #define SCTP_OUTPUT_FROM_COOKIE_ACK     14
  375 #define SCTP_OUTPUT_FROM_DRAIN          15
  376 #define SCTP_OUTPUT_FROM_CLOSING        16
  377 #define SCTP_OUTPUT_FROM_SOCKOPT        17
  378 
  379 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */
  380 
  381 /* align to 32-bit sizes */
  382 #define SCTP_SIZE32(x)  ((((x) + 3) >> 2) << 2)
  383 
  384 #define IS_SCTP_CONTROL(a) (((a)->chunk_type != SCTP_DATA) && ((a)->chunk_type != SCTP_IDATA))
  385 #define IS_SCTP_DATA(a) (((a)->chunk_type == SCTP_DATA) || ((a)->chunk_type == SCTP_IDATA))
  386 
  387 /* SCTP parameter types */
  388 /*************0x0000 series*************/
  389 #define SCTP_HEARTBEAT_INFO             0x0001
  390 #define SCTP_IPV4_ADDRESS               0x0005
  391 #define SCTP_IPV6_ADDRESS               0x0006
  392 #define SCTP_STATE_COOKIE               0x0007
  393 #define SCTP_UNRECOG_PARAM              0x0008
  394 #define SCTP_COOKIE_PRESERVE            0x0009
  395 #define SCTP_HOSTNAME_ADDRESS           0x000b
  396 #define SCTP_SUPPORTED_ADDRTYPE         0x000c
  397 
  398 /* RFC 6525 */
  399 #define SCTP_STR_RESET_OUT_REQUEST      0x000d
  400 #define SCTP_STR_RESET_IN_REQUEST       0x000e
  401 #define SCTP_STR_RESET_TSN_REQUEST      0x000f
  402 #define SCTP_STR_RESET_RESPONSE         0x0010
  403 #define SCTP_STR_RESET_ADD_OUT_STREAMS  0x0011
  404 #define SCTP_STR_RESET_ADD_IN_STREAMS   0x0012
  405 
  406 #define SCTP_MAX_RESET_PARAMS 2
  407 #define SCTP_STREAM_RESET_TSN_DELTA     0x1000
  408 
  409 /*************0x4000 series*************/
  410 
  411 /*************0x8000 series*************/
  412 #define SCTP_ECN_CAPABLE                0x8000
  413 
  414 /* RFC 4895 */
  415 #define SCTP_RANDOM                     0x8002
  416 #define SCTP_CHUNK_LIST                 0x8003
  417 #define SCTP_HMAC_LIST                  0x8004
  418 /* RFC 4820 */
  419 #define SCTP_PAD                        0x8005
  420 /* RFC 5061 */
  421 #define SCTP_SUPPORTED_CHUNK_EXT        0x8008
  422 
  423 /*************0xC000 series*************/
  424 #define SCTP_PRSCTP_SUPPORTED           0xc000
  425 /* RFC 5061 */
  426 #define SCTP_ADD_IP_ADDRESS             0xc001
  427 #define SCTP_DEL_IP_ADDRESS             0xc002
  428 #define SCTP_ERROR_CAUSE_IND            0xc003
  429 #define SCTP_SET_PRIM_ADDR              0xc004
  430 #define SCTP_SUCCESS_REPORT             0xc005
  431 #define SCTP_ULP_ADAPTATION             0xc006
  432 /* behave-nat-draft */
  433 #define SCTP_HAS_NAT_SUPPORT            0xc007
  434 #define SCTP_NAT_VTAGS                  0xc008
  435 
  436 /* bits for TOS field */
  437 #define SCTP_ECT0_BIT           0x02
  438 #define SCTP_ECT1_BIT           0x01
  439 #define SCTP_CE_BITS            0x03
  440 
  441 /* below turns off above */
  442 #define SCTP_FLEXIBLE_ADDRESS   0x20
  443 #define SCTP_NO_HEARTBEAT       0x40
  444 
  445 /* mask to get sticky */
  446 #define SCTP_STICKY_OPTIONS_MASK        0x0c
  447 
  448 /*
  449  * SCTP states for internal state machine
  450  */
  451 #define SCTP_STATE_EMPTY                0x0000
  452 #define SCTP_STATE_INUSE                0x0001
  453 #define SCTP_STATE_COOKIE_WAIT          0x0002
  454 #define SCTP_STATE_COOKIE_ECHOED        0x0004
  455 #define SCTP_STATE_OPEN                 0x0008
  456 #define SCTP_STATE_SHUTDOWN_SENT        0x0010
  457 #define SCTP_STATE_SHUTDOWN_RECEIVED    0x0020
  458 #define SCTP_STATE_SHUTDOWN_ACK_SENT    0x0040
  459 #define SCTP_STATE_SHUTDOWN_PENDING     0x0080
  460 #define SCTP_STATE_CLOSED_SOCKET        0x0100
  461 #define SCTP_STATE_ABOUT_TO_BE_FREED    0x0200
  462 #define SCTP_STATE_PARTIAL_MSG_LEFT     0x0400
  463 #define SCTP_STATE_WAS_ABORTED          0x0800
  464 #define SCTP_STATE_IN_ACCEPT_QUEUE      0x1000
  465 #define SCTP_STATE_MASK                 0x007f
  466 
  467 #define SCTP_GET_STATE(_stcb) \
  468         ((_stcb)->asoc.state & SCTP_STATE_MASK)
  469 #define SCTP_SET_STATE(_stcb, _state) \
  470         sctp_set_state(_stcb, _state)
  471 #define SCTP_CLEAR_SUBSTATE(_stcb, _substate) \
  472         (_stcb)->asoc.state &= ~(_substate)
  473 #define SCTP_ADD_SUBSTATE(_stcb, _substate) \
  474         sctp_add_substate(_stcb, _substate)
  475 
  476 /* SCTP reachability state for each address */
  477 #define SCTP_ADDR_REACHABLE             0x001
  478 #define SCTP_ADDR_NO_PMTUD              0x002
  479 #define SCTP_ADDR_NOHB                  0x004
  480 #define SCTP_ADDR_BEING_DELETED         0x008
  481 #define SCTP_ADDR_NOT_IN_ASSOC          0x010
  482 #define SCTP_ADDR_OUT_OF_SCOPE          0x080
  483 #define SCTP_ADDR_UNCONFIRMED           0x200
  484 #define SCTP_ADDR_REQ_PRIMARY           0x400
  485 /* JRS 5/13/07 - Added potentially failed state for CMT PF */
  486 #define SCTP_ADDR_PF                    0x800
  487 
  488 /* bound address types (e.g. valid address types to allow) */
  489 #define SCTP_BOUND_V6           0x01
  490 #define SCTP_BOUND_V4           0x02
  491 
  492 /*
  493  * what is the default number of mbufs in a chain I allow before switching to
  494  * a cluster
  495  */
  496 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5
  497 
  498 /* How long a cookie lives in milli-seconds */
  499 #define SCTP_DEFAULT_COOKIE_LIFE        60000
  500 
  501 /* Maximum the mapping array will  grow to (TSN mapping array) */
  502 #define SCTP_MAPPING_ARRAY      512
  503 
  504 /* size of the initial malloc on the mapping array */
  505 #define SCTP_INITIAL_MAPPING_ARRAY  16
  506 /* how much we grow the mapping array each call */
  507 #define SCTP_MAPPING_ARRAY_INCR     32
  508 
  509 /*
  510  * Here we define the timer types used by the implementation as arguments in
  511  * the set/get timer type calls.
  512  */
  513 #define SCTP_TIMER_INIT         0
  514 #define SCTP_TIMER_RECV         1
  515 #define SCTP_TIMER_SEND         2
  516 #define SCTP_TIMER_HEARTBEAT    3
  517 #define SCTP_TIMER_PMTU         4
  518 #define SCTP_TIMER_MAXSHUTDOWN  5
  519 #define SCTP_TIMER_SIGNATURE    6
  520 /*
  521  * number of timer types in the base SCTP structure used in the set/get and
  522  * has the base default.
  523  */
  524 #define SCTP_NUM_TMRS   7
  525 
  526 /* timer types */
  527 #define SCTP_TIMER_TYPE_NONE            0
  528 #define SCTP_TIMER_TYPE_SEND            1
  529 #define SCTP_TIMER_TYPE_INIT            2
  530 #define SCTP_TIMER_TYPE_RECV            3
  531 #define SCTP_TIMER_TYPE_SHUTDOWN        4
  532 #define SCTP_TIMER_TYPE_HEARTBEAT       5
  533 #define SCTP_TIMER_TYPE_COOKIE          6
  534 #define SCTP_TIMER_TYPE_NEWCOOKIE       7
  535 #define SCTP_TIMER_TYPE_PATHMTURAISE    8
  536 #define SCTP_TIMER_TYPE_SHUTDOWNACK     9
  537 #define SCTP_TIMER_TYPE_ASCONF          10
  538 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD   11
  539 #define SCTP_TIMER_TYPE_AUTOCLOSE       12
  540 #define SCTP_TIMER_TYPE_STRRESET        13
  541 #define SCTP_TIMER_TYPE_INPKILL         14
  542 #define SCTP_TIMER_TYPE_ASOCKILL        15
  543 #define SCTP_TIMER_TYPE_ADDR_WQ         16
  544 #define SCTP_TIMER_TYPE_PRIM_DELETED    17
  545 /* add new timers here - and increment LAST */
  546 #define SCTP_TIMER_TYPE_LAST            18
  547 
  548 #define SCTP_IS_TIMER_TYPE_VALID(t)     (((t) > SCTP_TIMER_TYPE_NONE) && \
  549                                          ((t) < SCTP_TIMER_TYPE_LAST))
  550 
  551 /* max number of TSN's dup'd that I will hold */
  552 #define SCTP_MAX_DUP_TSNS       20
  553 
  554 /*
  555  * Here we define the types used when setting the retry amounts.
  556  */
  557 /* How many drop re-attempts we make on  INIT/COOKIE-ECHO */
  558 #define SCTP_RETRY_DROPPED_THRESH 4
  559 
  560 /*
  561  * Maxmium number of chunks a single association can have on it. Note that
  562  * this is a squishy number since the count can run over this if the user
  563  * sends a large message down .. the fragmented chunks don't count until
  564  * AFTER the message is on queue.. it would be the next send that blocks
  565  * things. This number will get tuned up at boot in the sctp_init and use the
  566  * number of clusters as a base. This way high bandwidth environments will
  567  * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks
  568  */
  569 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512
  570 
  571 /*
  572  * Basically the minimum amount of time before I do a early FR. Making this
  573  * value to low will cause duplicate retransmissions.
  574  */
  575 #define SCTP_MINFR_MSEC_TIMER 250
  576 /* The floor this value is allowed to fall to when starting a timer. */
  577 #define SCTP_MINFR_MSEC_FLOOR 20
  578 
  579 /* init timer def = 1 sec */
  580 #define SCTP_INIT_SEC   1
  581 
  582 /* send timer def = 1 seconds */
  583 #define SCTP_SEND_SEC   1
  584 
  585 /* recv timer def = 200ms  */
  586 #define SCTP_RECV_MSEC  200
  587 
  588 /* 30 seconds + RTO (in ms) */
  589 #define SCTP_HB_DEFAULT_MSEC    30000
  590 
  591 /*
  592  * This is how long a secret lives, NOT how long a cookie lives how many
  593  * ticks the current secret will live.
  594  */
  595 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600
  596 
  597 #define SCTP_RTO_UPPER_BOUND    (60000) /* 60 sec in ms */
  598 #define SCTP_RTO_LOWER_BOUND    (1000)  /* 1 sec is ms */
  599 #define SCTP_RTO_INITIAL        (1000)  /* 1 sec in ms */
  600 
  601 #define SCTP_INP_KILL_TIMEOUT 20        /* number of ms to retry kill of inpcb */
  602 #define SCTP_ASOC_KILL_TIMEOUT 10       /* number of ms to retry kill of inpcb */
  603 
  604 #define SCTP_DEF_MAX_INIT               8
  605 #define SCTP_DEF_MAX_SEND               10
  606 #define SCTP_DEF_MAX_PATH_RTX           5
  607 #define SCTP_DEF_PATH_PF_THRESHOLD      SCTP_DEF_MAX_PATH_RTX
  608 
  609 #define SCTP_DEF_PMTU_RAISE_SEC 600     /* 10 min between raise attempts */
  610 
  611 /* How many streams I request initially by default */
  612 #define SCTP_OSTREAM_INITIAL 10
  613 #define SCTP_ISTREAM_INITIAL 2048
  614 
  615 /*
  616  * How many smallest_mtu's need to increase before a window update sack is
  617  * sent (should be a power of 2).
  618  */
  619 /* Send window update (incr * this > hiwat). Should be a power of 2 */
  620 #define SCTP_MINIMAL_RWND               (4096)  /* minimal rwnd */
  621 
  622 #define SCTP_ADDRMAX            16
  623 
  624 /* SCTP DEBUG Switch parameters */
  625 #define SCTP_DEBUG_TIMER1       0x00000001
  626 #define SCTP_DEBUG_TIMER2       0x00000002      /* unused */
  627 #define SCTP_DEBUG_TIMER3       0x00000004      /* unused */
  628 #define SCTP_DEBUG_TIMER4       0x00000008
  629 #define SCTP_DEBUG_OUTPUT1      0x00000010
  630 #define SCTP_DEBUG_OUTPUT2      0x00000020
  631 #define SCTP_DEBUG_OUTPUT3      0x00000040
  632 #define SCTP_DEBUG_OUTPUT4      0x00000080
  633 #define SCTP_DEBUG_UTIL1        0x00000100
  634 #define SCTP_DEBUG_UTIL2        0x00000200      /* unused */
  635 #define SCTP_DEBUG_AUTH1        0x00000400
  636 #define SCTP_DEBUG_AUTH2        0x00000800      /* unused */
  637 #define SCTP_DEBUG_INPUT1       0x00001000
  638 #define SCTP_DEBUG_INPUT2       0x00002000
  639 #define SCTP_DEBUG_INPUT3       0x00004000
  640 #define SCTP_DEBUG_INPUT4       0x00008000      /* unused */
  641 #define SCTP_DEBUG_ASCONF1      0x00010000
  642 #define SCTP_DEBUG_ASCONF2      0x00020000
  643 #define SCTP_DEBUG_OUTPUT5      0x00040000      /* unused */
  644 #define SCTP_DEBUG_XXX          0x00080000      /* unused */
  645 #define SCTP_DEBUG_PCB1         0x00100000
  646 #define SCTP_DEBUG_PCB2         0x00200000      /* unused */
  647 #define SCTP_DEBUG_PCB3         0x00400000
  648 #define SCTP_DEBUG_PCB4         0x00800000
  649 #define SCTP_DEBUG_INDATA1      0x01000000
  650 #define SCTP_DEBUG_INDATA2      0x02000000      /* unused */
  651 #define SCTP_DEBUG_INDATA3      0x04000000      /* unused */
  652 #define SCTP_DEBUG_CRCOFFLOAD   0x08000000      /* unused */
  653 #define SCTP_DEBUG_USRREQ1      0x10000000      /* unused */
  654 #define SCTP_DEBUG_USRREQ2      0x20000000      /* unused */
  655 #define SCTP_DEBUG_PEEL1        0x40000000
  656 #define SCTP_DEBUG_XXXXX        0x80000000      /* unused */
  657 #define SCTP_DEBUG_ALL          0x7ff3ffff
  658 #define SCTP_DEBUG_NOISY        0x00040000
  659 
  660 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */
  661 #define SCTP_SWS_SENDER_DEF     1420
  662 
  663 /*
  664  * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1
  665  * would be hiwat/2 etc.
  666  */
  667 /* What receiver needs to see in sockbuf or we tell peer its 1 */
  668 #define SCTP_SWS_RECEIVER_DEF   3000
  669 
  670 #define SCTP_INITIAL_CWND 4380
  671 
  672 #define SCTP_DEFAULT_MTU 1500   /* emergency default MTU */
  673 /* amount peer is obligated to have in rwnd or I will abort */
  674 #define SCTP_MIN_RWND   1500
  675 
  676 #define SCTP_CHUNK_BUFFER_SIZE  512
  677 #define SCTP_PARAM_BUFFER_SIZE  512
  678 
  679 /* small chunk store for looking at chunk_list in auth */
  680 #define SCTP_SMALL_CHUNK_STORE 260
  681 
  682 #define SCTP_HOW_MANY_SECRETS   2       /* how many secrets I keep */
  683 
  684 #define SCTP_NUMBER_OF_SECRETS  8       /* or 8 * 4 = 32 octets */
  685 #define SCTP_SECRET_SIZE        32      /* number of octets in a 256 bits */
  686 
  687 /*
  688  * SCTP upper layer notifications
  689  */
  690 #define SCTP_NOTIFY_ASSOC_UP                     1
  691 #define SCTP_NOTIFY_ASSOC_DOWN                   2
  692 #define SCTP_NOTIFY_INTERFACE_DOWN               3
  693 #define SCTP_NOTIFY_INTERFACE_UP                 4
  694 #define SCTP_NOTIFY_SENT_DG_FAIL                 5
  695 #define SCTP_NOTIFY_UNSENT_DG_FAIL               6
  696 #define SCTP_NOTIFY_SPECIAL_SP_FAIL              7
  697 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED            8
  698 #define SCTP_NOTIFY_ASSOC_REM_ABORTED            9
  699 #define SCTP_NOTIFY_ASSOC_RESTART               10
  700 #define SCTP_NOTIFY_PEER_SHUTDOWN               11
  701 #define SCTP_NOTIFY_ASCONF_ADD_IP               12
  702 #define SCTP_NOTIFY_ASCONF_DELETE_IP            13
  703 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY          14
  704 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15
  705 #define SCTP_NOTIFY_INTERFACE_CONFIRMED         16
  706 #define SCTP_NOTIFY_STR_RESET_RECV              17
  707 #define SCTP_NOTIFY_STR_RESET_SEND              18
  708 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT        19
  709 #define SCTP_NOTIFY_STR_RESET_FAILED_IN         20
  710 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT        21
  711 #define SCTP_NOTIFY_STR_RESET_DENIED_IN         22
  712 #define SCTP_NOTIFY_AUTH_NEW_KEY                23
  713 #define SCTP_NOTIFY_AUTH_FREE_KEY               24
  714 #define SCTP_NOTIFY_NO_PEER_AUTH                25
  715 #define SCTP_NOTIFY_SENDER_DRY                  26
  716 #define SCTP_NOTIFY_REMOTE_ERROR                27
  717 #define SCTP_NOTIFY_ASSOC_TIMEDOUT              28
  718 
  719 /* This is the value for messages that are NOT completely
  720  * copied down where we will start to split the message.
  721  * So, with our default, we split only if the piece we
  722  * want to take will fill up a full MTU (assuming
  723  * a 1500 byte MTU).
  724  */
  725 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904
  726 
  727 /* Maximum length of diagnostic information in error causes */
  728 #define SCTP_DIAG_INFO_LEN 128
  729 
  730 /* ABORT CODES and other tell-tale location
  731  * codes are generated by adding the below
  732  * to the instance id.
  733  */
  734 
  735 /* File defines */
  736 #define SCTP_FROM_SCTP_INPUT        0x10000000
  737 #define SCTP_FROM_SCTP_PCB          0x20000000
  738 #define SCTP_FROM_SCTP_INDATA       0x30000000
  739 #define SCTP_FROM_SCTP_TIMER        0x40000000
  740 #define SCTP_FROM_SCTP_USRREQ       0x50000000
  741 #define SCTP_FROM_SCTPUTIL          0x60000000
  742 #define SCTP_FROM_SCTP6_USRREQ      0x70000000
  743 #define SCTP_FROM_SCTP_ASCONF       0x80000000
  744 #define SCTP_FROM_SCTP_OUTPUT       0x90000000
  745 #define SCTP_FROM_SCTP_PEELOFF      0xa0000000
  746 #define SCTP_FROM_SCTP_SYSCTL       0xb0000000
  747 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xc0000000
  748 
  749 /* Location ID's */
  750 #define SCTP_LOC_1  0x00000001
  751 #define SCTP_LOC_2  0x00000002
  752 #define SCTP_LOC_3  0x00000003
  753 #define SCTP_LOC_4  0x00000004
  754 #define SCTP_LOC_5  0x00000005
  755 #define SCTP_LOC_6  0x00000006
  756 #define SCTP_LOC_7  0x00000007
  757 #define SCTP_LOC_8  0x00000008
  758 #define SCTP_LOC_9  0x00000009
  759 #define SCTP_LOC_10 0x0000000a
  760 #define SCTP_LOC_11 0x0000000b
  761 #define SCTP_LOC_12 0x0000000c
  762 #define SCTP_LOC_13 0x0000000d
  763 #define SCTP_LOC_14 0x0000000e
  764 #define SCTP_LOC_15 0x0000000f
  765 #define SCTP_LOC_16 0x00000010
  766 #define SCTP_LOC_17 0x00000011
  767 #define SCTP_LOC_18 0x00000012
  768 #define SCTP_LOC_19 0x00000013
  769 #define SCTP_LOC_20 0x00000014
  770 #define SCTP_LOC_21 0x00000015
  771 #define SCTP_LOC_22 0x00000016
  772 #define SCTP_LOC_23 0x00000017
  773 #define SCTP_LOC_24 0x00000018
  774 #define SCTP_LOC_25 0x00000019
  775 #define SCTP_LOC_26 0x0000001a
  776 #define SCTP_LOC_27 0x0000001b
  777 #define SCTP_LOC_28 0x0000001c
  778 #define SCTP_LOC_29 0x0000001d
  779 #define SCTP_LOC_30 0x0000001e
  780 #define SCTP_LOC_31 0x0000001f
  781 #define SCTP_LOC_32 0x00000020
  782 #define SCTP_LOC_33 0x00000021
  783 #define SCTP_LOC_34 0x00000022
  784 #define SCTP_LOC_35 0x00000023
  785 #define SCTP_LOC_36 0x00000024
  786 #define SCTP_LOC_37 0x00000025
  787 
  788 /* Free assoc codes */
  789 #define SCTP_NORMAL_PROC      0
  790 #define SCTP_PCBFREE_NOFORCE  1
  791 #define SCTP_PCBFREE_FORCE    2
  792 
  793 /* From codes for adding addresses */
  794 #define SCTP_ADDR_IS_CONFIRMED 8
  795 #define SCTP_ADDR_DYNAMIC_ADDED 6
  796 #define SCTP_IN_COOKIE_PROC 100
  797 #define SCTP_ALLOC_ASOC  1
  798 #define SCTP_LOAD_ADDR_2 2
  799 #define SCTP_LOAD_ADDR_3 3
  800 #define SCTP_LOAD_ADDR_4 4
  801 #define SCTP_LOAD_ADDR_5 5
  802 
  803 #define SCTP_DONOT_SETSCOPE 0
  804 #define SCTP_DO_SETSCOPE 1
  805 
  806 /* This value determines the default for when
  807  * we try to add more on the send queue., if
  808  * there is room. This prevents us from cycling
  809  * into the copy_resume routine to often if
  810  * we have not got enough space to add a decent
  811  * enough size message. Note that if we have enough
  812  * space to complete the message copy we will always
  813  * add to the message, no matter what the size. Its
  814  * only when we reach the point that we have some left
  815  * to add, there is only room for part of it that we
  816  * will use this threshold. Its also a sysctl.
  817  */
  818 #define SCTP_DEFAULT_ADD_MORE 1452
  819 
  820 #ifndef SCTP_PCBHASHSIZE
  821 /* default number of association hash buckets in each endpoint */
  822 #define SCTP_PCBHASHSIZE 256
  823 #endif
  824 #ifndef SCTP_TCBHASHSIZE
  825 #define SCTP_TCBHASHSIZE 1024
  826 #endif
  827 
  828 #ifndef SCTP_CHUNKQUEUE_SCALE
  829 #define SCTP_CHUNKQUEUE_SCALE 10
  830 #endif
  831 
  832 /* clock variance is 1 ms */
  833 #define SCTP_CLOCK_GRANULARITY  1
  834 #define IP_HDR_SIZE 40          /* we use the size of a IP6 header here this
  835                                  * detracts a small amount for ipv4 but it
  836                                  * simplifies the ipv6 addition */
  837 
  838 /* Argument magic number for sctp_inpcb_free() */
  839 
  840 /* third argument */
  841 #define SCTP_CALLED_DIRECTLY_NOCMPSET     0
  842 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE  1
  843 #define SCTP_CALLED_FROM_INPKILL_TIMER    2
  844 /* second argument */
  845 #define SCTP_FREE_SHOULD_USE_ABORT          1
  846 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0
  847 
  848 #ifndef IPPROTO_SCTP
  849 #define IPPROTO_SCTP 132        /* the Official IANA number :-) */
  850 #endif                          /* !IPPROTO_SCTP */
  851 
  852 #define SCTP_MAX_DATA_BUNDLING          256
  853 
  854 /* modular comparison */
  855 /* See RFC 1982 for details. */
  856 #define SCTP_UINT16_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \
  857                               ((a > b) && ((uint16_t)(a - b) < (1U<<15))))
  858 #define SCTP_UINT16_GE(a, b) (SCTP_UINT16_GT(a, b) || (a == b))
  859 #define SCTP_UINT32_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \
  860                               ((a > b) && ((uint32_t)(a - b) < (1U<<31))))
  861 #define SCTP_UINT32_GE(a, b) (SCTP_UINT32_GT(a, b) || (a == b))
  862 
  863 #define SCTP_SSN_GT(a, b) SCTP_UINT16_GT(a, b)
  864 #define SCTP_SSN_GE(a, b) SCTP_UINT16_GE(a, b)
  865 #define SCTP_TSN_GT(a, b) SCTP_UINT32_GT(a, b)
  866 #define SCTP_TSN_GE(a, b) SCTP_UINT32_GE(a, b)
  867 #define SCTP_MID_GT(i, a, b) (((i) == 1) ? SCTP_UINT32_GT(a, b) : SCTP_UINT16_GT((uint16_t)a, (uint16_t)b))
  868 #define SCTP_MID_GE(i, a, b) (((i) == 1) ? SCTP_UINT32_GE(a, b) : SCTP_UINT16_GE((uint16_t)a, (uint16_t)b))
  869 #define SCTP_MID_EQ(i, a, b) (((i) == 1) ? a == b : (uint16_t)a == (uint16_t)b)
  870 
  871 /* Mapping array manipulation routines */
  872 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01)
  873 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07))))
  874 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff))
  875 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \
  876                         if (tsn >= mapping_tsn) { \
  877                                                 gap = tsn - mapping_tsn; \
  878                                         } else { \
  879                                                 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \
  880                                         } \
  881                   } while (0)
  882 
  883 #define SCTP_RETRAN_DONE -1
  884 #define SCTP_RETRAN_EXIT -2
  885 
  886 /*
  887  * This value defines the number of vtag block time wait entry's per list
  888  * element.  Each entry will take 2 4 byte ints (and of course the overhead
  889  * of the next pointer as well). Using 15 as an example will yield * ((8 *
  890  * 15) + 8) or 128 bytes of overhead for each timewait block that gets
  891  * initialized. Increasing it to 31 would yield 256 bytes per block.
  892  */
  893 #define SCTP_NUMBER_IN_VTAG_BLOCK 15
  894 /*
  895  * If we use the STACK option, we have an array of this size head pointers.
  896  * This array is mod'd the with the size to find which bucket and then all
  897  * entries must be searched to see if the tag is in timed wait. If so we
  898  * reject it.
  899  */
  900 #define SCTP_STACK_VTAG_HASH_SIZE   32
  901 
  902 /*
  903  * Number of seconds of time wait for a vtag.
  904  */
  905 #define SCTP_TIME_WAIT 60
  906 
  907 /* How many micro seconds is the cutoff from
  908  * local lan type rtt's
  909  */
  910  /*
  911   * We allow 900us for the rtt.
  912   */
  913 #define SCTP_LOCAL_LAN_RTT 900
  914 #define SCTP_LAN_UNKNOWN  0
  915 #define SCTP_LAN_LOCAL    1
  916 #define SCTP_LAN_INTERNET 2
  917 
  918 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001
  919 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002
  920 
  921 /* The system retains a cache of free chunks such to
  922  * cut down on calls the memory allocation system. There
  923  * is a per association limit of free items and a overall
  924  * system limit. If either one gets hit then the resource
  925  * stops being cached.
  926  */
  927 
  928 #define SCTP_DEF_ASOC_RESC_LIMIT 10
  929 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000
  930 
  931 /*-
  932  * defines for socket lock states.
  933  * Used by __APPLE__
  934  */
  935 #define SCTP_SO_LOCKED          1
  936 #define SCTP_SO_NOT_LOCKED      0
  937 
  938 /*-
  939  * For address locks, do we hold the lock?
  940  */
  941 #define SCTP_ADDR_LOCKED 1
  942 #define SCTP_ADDR_NOT_LOCKED 0
  943 
  944 #define IN4_ISPRIVATE_ADDRESS(a) \
  945    ((((uint8_t *)&(a)->s_addr)[0] == 10) || \
  946     ((((uint8_t *)&(a)->s_addr)[0] == 172) && \
  947      (((uint8_t *)&(a)->s_addr)[1] >= 16) && \
  948      (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \
  949     ((((uint8_t *)&(a)->s_addr)[0] == 192) && \
  950      (((uint8_t *)&(a)->s_addr)[1] == 168)))
  951 
  952 #define IN4_ISLOOPBACK_ADDRESS(a) \
  953     (((uint8_t *)&(a)->s_addr)[0] == 127)
  954 
  955 #define IN4_ISLINKLOCAL_ADDRESS(a) \
  956     ((((uint8_t *)&(a)->s_addr)[0] == 169) && \
  957      (((uint8_t *)&(a)->s_addr)[1] == 254))
  958 
  959 /* Maximum size of optval for IPPROTO_SCTP level socket options. */
  960 #define SCTP_SOCKET_OPTION_LIMIT (64 * 1024)
  961 
  962 #if defined(_KERNEL)
  963 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x))
  964 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x))
  965 #endif
  966 
  967 #if defined(_KERNEL) || defined(__Userspace__)
  968 #define sctp_sowwakeup(inp, so) \
  969 do { \
  970         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
  971                 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEOUTPUT); \
  972         } else { \
  973                 sowwakeup(so); \
  974         } \
  975 } while (0)
  976 
  977 #define sctp_sowwakeup_locked(inp, so) \
  978 do { \
  979         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
  980                 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEOUTPUT); \
  981                 SOCKBUF_UNLOCK(&((so)->so_snd)); \
  982         } else { \
  983                 sowwakeup_locked(so); \
  984         } \
  985 } while (0)
  986 
  987 #define sctp_sorwakeup(inp, so) \
  988 do { \
  989         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
  990                 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEINPUT); \
  991         } else { \
  992                 sorwakeup(so); \
  993         } \
  994 } while (0)
  995 
  996 #define sctp_sorwakeup_locked(inp, so) \
  997 do { \
  998         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
  999                 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEINPUT); \
 1000                 SOCKBUF_UNLOCK(&((so)->so_rcv)); \
 1001         } else { \
 1002                 sorwakeup_locked(so); \
 1003         } \
 1004 } while (0)
 1005 
 1006 #endif                          /* _KERNEL || __Userspace__ */
 1007 #endif

Cache object: 7a1b8baf9ba81a39dd1b39cb452f5a67


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.