| 1 | /* @(#) $Header: /tcpdump/master/tcpdump/sctpConstants.h,v 1.4 2003-06-03 23:49:23 guy Exp $ (LBL) */ |
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| 2 | |
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| 3 | /* SCTP reference Implementation Copyright (C) 1999 Cisco And Motorola |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * 1. Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * |
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * |
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| 16 | * 3. Neither the name of Cisco nor of Motorola may be used |
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| 17 | * to endorse or promote products derived from this software without |
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| 18 | * specific prior written permission. |
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| 19 | * |
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| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 30 | * SUCH DAMAGE. |
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| 31 | * |
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| 32 | * This file is part of the SCTP reference Implementation |
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| 33 | * |
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| 34 | * |
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| 35 | * Please send any bug reports or fixes you make to one of the following email |
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| 36 | * addresses: |
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| 37 | * |
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| 38 | * rstewar1@email.mot.com |
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| 39 | * kmorneau@cisco.com |
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| 40 | * qxie1@email.mot.com |
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| 41 | * |
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| 42 | * Any bugs reported given to us we will try to fix... any fixes shared will |
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| 43 | * be incorperated into the next SCTP release. |
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| 44 | */ |
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| 45 | |
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| 46 | |
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| 47 | #ifndef __sctpConstants_h__ |
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| 48 | #define __sctpConstants_h__ |
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| 49 | |
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| 50 | |
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| 51 | /* If you wish to use MD5 instead of SLA uncomment the line |
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| 52 | * below. Why you would like to do this: |
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| 53 | * a) There may be IPR on SHA-1, or so the FIP-180-1 page says, |
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| 54 | * b) MD5 is 3 times faster (has coded here). |
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| 55 | * |
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| 56 | * The disadvantage is, it is thought that MD5 has been |
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| 57 | * cracked... see RFC2104. |
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| 58 | */ |
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| 59 | /*#define USE_MD5 1*/ |
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| 60 | |
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| 61 | /* the SCTP protocol signature |
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| 62 | * this includes the version number |
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| 63 | * encoded in the last 4 bits of the |
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| 64 | * signature. |
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| 65 | */ |
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| 66 | #define PROTO_SIGNATURE_A 0x30000000 |
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| 67 | |
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| 68 | #define SCTP_VERSION_NUMBER 0x3 |
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| 69 | |
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| 70 | #define MAX_TSN 0xffffffff |
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| 71 | #define MAX_SEQ 0xffff |
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| 72 | |
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| 73 | /* option: |
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| 74 | * If you comment out the following you will |
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| 75 | * receive the old behavior of obeying cwnd for |
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| 76 | * the fast retransmit algorithm. With this defined |
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| 77 | * a FR happens right away with-out waiting for the |
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| 78 | * flightsize to drop below the cwnd value (which |
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| 79 | * is reduced by the FR to 1/2 the inflight packets). |
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| 80 | */ |
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| 81 | #define SCTP_IGNORE_CWND_ON_FR 1 |
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| 82 | /* default max I can burst out after a fast retransmit */ |
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| 83 | #define SCTP_DEF_MAX_BURST 4 |
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| 84 | |
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| 85 | /* Packet transmit states in the sent |
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| 86 | * field in the SCTP_transmitOnQueue struct |
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| 87 | */ |
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| 88 | #define SCTP_DATAGRAM_UNSENT 0 |
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| 89 | #define SCTP_DATAGRAM_SENT 1 |
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| 90 | #define SCTP_DATAGRAM_RESEND1 2 /* not used */ |
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| 91 | #define SCTP_DATAGRAM_RESEND2 3 /* not used */ |
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| 92 | #define SCTP_DATAGRAM_RESEND3 4 /* not used */ |
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| 93 | #define SCTP_DATAGRAM_RESEND 5 |
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| 94 | #define SCTP_DATAGRAM_ACKED 10010 |
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| 95 | #define SCTP_DATAGRAM_INBOUND 10011 |
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| 96 | #define SCTP_READY_TO_TRANSMIT 10012 |
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| 97 | #define SCTP_DATAGRAM_MARKED 20010 |
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| 98 | |
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| 99 | #define MAX_FSID 64 /* debug 5 ints used for cc dynamic tracking */ |
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| 100 | |
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| 101 | /* The valid defines for all message |
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| 102 | * types know to SCTP. 0 is reserved |
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| 103 | */ |
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| 104 | #define SCTP_MSGTYPE_MASK 0xff |
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| 105 | |
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| 106 | #define SCTP_DATA 0x00 |
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| 107 | #define SCTP_INITIATION 0x01 |
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| 108 | #define SCTP_INITIATION_ACK 0x02 |
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| 109 | #define SCTP_SELECTIVE_ACK 0x03 |
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| 110 | #define SCTP_HEARTBEAT_REQUEST 0x04 |
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| 111 | #define SCTP_HEARTBEAT_ACK 0x05 |
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| 112 | #define SCTP_ABORT_ASSOCIATION 0x06 |
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| 113 | #define SCTP_SHUTDOWN 0x07 |
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| 114 | #define SCTP_SHUTDOWN_ACK 0x08 |
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| 115 | #define SCTP_OPERATION_ERR 0x09 |
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| 116 | #define SCTP_COOKIE_ECHO 0x0a |
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| 117 | #define SCTP_COOKIE_ACK 0x0b |
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| 118 | #define SCTP_ECN_ECHO 0x0c |
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| 119 | #define SCTP_ECN_CWR 0x0d |
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| 120 | #define SCTP_SHUTDOWN_COMPLETE 0x0e |
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| 121 | #define SCTP_FORWARD_CUM_TSN 0xc0 |
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| 122 | #define SCTP_RELIABLE_CNTL 0xc1 |
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| 123 | #define SCTP_RELIABLE_CNTL_ACK 0xc2 |
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| 124 | |
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| 125 | /* ABORT and SHUTDOWN COMPLETE FLAG */ |
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| 126 | #define SCTP_HAD_NO_TCB 0x01 |
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| 127 | |
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| 128 | /* Data Chuck Specific Flags */ |
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| 129 | #define SCTP_DATA_FRAG_MASK 0x03 |
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| 130 | #define SCTP_DATA_MIDDLE_FRAG 0x00 |
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| 131 | #define SCTP_DATA_LAST_FRAG 0x01 |
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| 132 | #define SCTP_DATA_FIRST_FRAG 0x02 |
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| 133 | #define SCTP_DATA_NOT_FRAG 0x03 |
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| 134 | #define SCTP_DATA_UNORDERED 0x04 |
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| 135 | |
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| 136 | #define SCTP_CRC_ENABLE_BIT 0x01 /* lower bit of reserved */ |
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| 137 | |
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| 138 | #define isSCTPControl(a) (a->chunkID != SCTP_DATA) |
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| 139 | #define isSCTPData(a) (a->chunkID == SCTP_DATA) |
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| 140 | |
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| 141 | /* sctp parameter types for init/init-ack */ |
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| 142 | |
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| 143 | #define SCTP_IPV4_PARAM_TYPE 0x0005 |
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| 144 | #define SCTP_IPV6_PARAM_TYPE 0x0006 |
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| 145 | #define SCTP_RESPONDER_COOKIE 0x0007 |
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| 146 | #define SCTP_UNRECOG_PARAM 0x0008 |
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| 147 | #define SCTP_COOKIE_PRESERVE 0x0009 |
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| 148 | #define SCTP_HOSTNAME_VIA_DNS 0x000b |
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| 149 | #define SCTP_RESTRICT_ADDR_TO 0x000c |
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| 150 | |
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| 151 | #define SCTP_ECN_I_CAN_DO_ECN 0x8000 |
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| 152 | #define SCTP_OPERATION_SUCCEED 0x4001 |
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| 153 | #define SCTP_ERROR_NOT_EXECUTED 0x4002 |
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| 154 | |
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| 155 | #define SCTP_UNRELIABLE_STRM 0xc000 |
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| 156 | #define SCTP_ADD_IP_ADDRESS 0xc001 |
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| 157 | #define SCTP_DEL_IP_ADDRESS 0xc002 |
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| 158 | #define SCTP_STRM_FLOW_LIMIT 0xc003 |
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| 159 | #define SCTP_PARTIAL_CSUM 0xc004 |
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| 160 | #define SCTP_ERROR_CAUSE_TLV 0xc005 |
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| 161 | #define SCTP_MIT_STACK_NAME 0xc006 |
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| 162 | #define SCTP_SETADDRESS_PRIMARY 0xc007 |
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| 163 | |
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| 164 | /* bits for TOS field */ |
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| 165 | #define SCTP_ECT_BIT 0x02 |
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| 166 | #define SCTP_CE_BIT 0x01 |
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| 167 | |
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| 168 | /* error codes */ |
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| 169 | #define SCTP_OP_ERROR_NO_ERROR 0x0000 |
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| 170 | #define SCTP_OP_ERROR_INV_STRM 0x0001 |
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| 171 | #define SCTP_OP_ERROR_MISS_PARAM 0x0002 |
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| 172 | #define SCTP_OP_ERROR_STALE_COOKIE 0x0003 |
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| 173 | #define SCTP_OP_ERROR_NO_RESOURCE 0x0004 |
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| 174 | #define SCTP_OP_ERROR_DNS_FAILED 0x0005 |
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| 175 | #define SCTP_OP_ERROR_UNK_CHUNK 0x0006 |
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| 176 | #define SCTP_OP_ERROR_INV_PARAM 0x0007 |
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| 177 | #define SCTP_OP_ERROR_UNK_PARAM 0x0008 |
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| 178 | #define SCTP_OP_ERROR_NO_USERD 0x0009 |
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| 179 | #define SCTP_OP_ERROR_COOKIE_SHUT 0x000a |
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| 180 | #define SCTP_OP_ERROR_DELETE_LAST 0x000b |
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| 181 | #define SCTP_OP_ERROR_RESOURCE_SHORT 0x000c |
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| 182 | |
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| 183 | #define SCTP_MAX_ERROR_CAUSE 12 |
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| 184 | |
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| 185 | /* empty error causes i.e. nothing but the cause |
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| 186 | * are SCTP_OP_ERROR_NO_RESOURCE, SCTP_OP_ERROR_INV_PARAM, |
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| 187 | * SCTP_OP_ERROR_COOKIE_SHUT. |
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| 188 | */ |
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| 189 | |
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| 190 | /* parameter for Heart Beat */ |
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| 191 | #define HEART_BEAT_PARAM 0x0001 |
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| 192 | |
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| 193 | |
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| 194 | |
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| 195 | /* send options for SCTP |
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| 196 | */ |
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| 197 | #define SCTP_ORDERED_DELIVERY 0x01 |
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| 198 | #define SCTP_NON_ORDERED_DELIVERY 0x02 |
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| 199 | #define SCTP_DO_CRC16 0x08 |
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| 200 | #define SCTP_MY_ADDRESS_ONLY 0x10 |
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| 201 | |
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| 202 | /* below turns off above */ |
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| 203 | #define SCTP_FLEXIBLE_ADDRESS 0x20 |
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| 204 | #define SCTP_NO_HEARTBEAT 0x40 |
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| 205 | |
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| 206 | /* mask to get sticky */ |
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| 207 | #define SCTP_STICKY_OPTIONS_MASK 0x0c |
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| 208 | |
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| 209 | /* MTU discovery flags */ |
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| 210 | #define SCTP_DONT_FRAGMENT 0x0100 |
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| 211 | #define SCTP_FRAGMENT_OK 0x0200 |
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| 212 | |
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| 213 | |
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| 214 | /* SCTP state defines for internal state machine */ |
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| 215 | #define SCTP_STATE_EMPTY 0x0000 |
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| 216 | #define SCTP_STATE_INUSE 0x0001 |
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| 217 | #define SCTP_STATE_COOKIE_WAIT 0x0002 |
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| 218 | #define SCTP_STATE_COOKIE_SENT 0x0004 |
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| 219 | #define SCTP_STATE_OPEN 0x0008 |
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| 220 | #define SCTP_STATE_SHUTDOWN 0x0010 |
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| 221 | #define SCTP_STATE_SHUTDOWN_RECV 0x0020 |
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| 222 | #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 |
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| 223 | #define SCTP_STATE_SHUTDOWN_PEND 0x0080 |
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| 224 | #define SCTP_STATE_MASK 0x007f |
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| 225 | /* SCTP reachability state for each address */ |
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| 226 | #define SCTP_ADDR_NOT_REACHABLE 1 |
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| 227 | #define SCTP_ADDR_REACHABLE 2 |
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| 228 | #define SCTP_ADDR_NOHB 4 |
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| 229 | #define SCTP_ADDR_BEING_DELETED 8 |
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| 230 | |
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| 231 | /* How long a cookie lives */ |
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| 232 | #define SCTP_DEFAULT_COOKIE_LIFE 60 /* seconds */ |
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| 233 | |
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| 234 | /* resource limit of streams */ |
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| 235 | #define MAX_SCTP_STREAMS 2048 |
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| 236 | |
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| 237 | |
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| 238 | /* guess at how big to make the TSN mapping array */ |
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| 239 | #define SCTP_STARTING_MAPARRAY 10000 |
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| 240 | |
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| 241 | /* Here we define the timer types used |
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| 242 | * by the implementation has |
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| 243 | * arguments in the set/get timer type calls. |
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| 244 | */ |
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| 245 | #define SCTP_TIMER_INIT 0 |
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| 246 | #define SCTP_TIMER_RECV 1 |
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| 247 | #define SCTP_TIMER_SEND 2 |
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| 248 | #define SCTP_TIMER_SHUTDOWN 3 |
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| 249 | #define SCTP_TIMER_HEARTBEAT 4 |
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| 250 | #define SCTP_TIMER_PMTU 5 |
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| 251 | /* number of timer types in the base SCTP |
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| 252 | * structure used in the set/get and has |
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| 253 | * the base default. |
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| 254 | */ |
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| 255 | #define SCTP_NUM_TMRS 6 |
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| 256 | |
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| 257 | |
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| 258 | |
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| 259 | #define SCTP_IPV4_ADDRESS 2 |
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| 260 | #define SCTP_IPV6_ADDRESS 4 |
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| 261 | |
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| 262 | /* timer types */ |
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| 263 | #define SctpTimerTypeNone 0 |
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| 264 | #define SctpTimerTypeSend 1 |
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| 265 | #define SctpTimerTypeInit 2 |
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| 266 | #define SctpTimerTypeRecv 3 |
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| 267 | #define SctpTimerTypeShutdown 4 |
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| 268 | #define SctpTimerTypeHeartbeat 5 |
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| 269 | #define SctpTimerTypeCookie 6 |
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| 270 | #define SctpTimerTypeNewCookie 7 |
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| 271 | #define SctpTimerTypePathMtuRaise 8 |
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| 272 | #define SctpTimerTypeShutdownAck 9 |
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| 273 | #define SctpTimerTypeRelReq 10 |
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| 274 | |
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| 275 | /* Here are the timer directives given to the |
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| 276 | * user provided function |
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| 277 | */ |
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| 278 | #define SCTP_TIMER_START 1 |
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| 279 | #define SCTP_TIMER_STOP 2 |
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| 280 | |
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| 281 | /* running flag states in timer structure */ |
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| 282 | #define SCTP_TIMER_IDLE 0x0 |
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| 283 | #define SCTP_TIMER_EXPIRED 0x1 |
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| 284 | #define SCTP_TIMER_RUNNING 0x2 |
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| 285 | |
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| 286 | |
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| 287 | /* number of simultaneous timers running */ |
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| 288 | #define SCTP_MAX_NET_TIMERS 6 /* base of where net timers start */ |
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| 289 | #define SCTP_NUMBER_TIMERS 12 /* allows up to 6 destinations */ |
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| 290 | |
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| 291 | |
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| 292 | /* Of course we really don't collect stale cookies, being |
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| 293 | * folks of decerning taste. However we do count them, if |
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| 294 | * we get to many before the association comes up.. we |
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| 295 | * give up. Below is the constant that dictates when |
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| 296 | * we give it up...this is a implemenation dependant |
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| 297 | * treatment. In ours we do not ask for a extension of |
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| 298 | * time, but just retry this many times... |
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| 299 | */ |
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| 300 | #define SCTP_MAX_STALE_COOKIES_I_COLLECT 10 |
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| 301 | |
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| 302 | /* max number of TSN's dup'd that I will hold */ |
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| 303 | #define SCTP_MAX_DUP_TSNS 20 |
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| 304 | |
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| 305 | /* Here we define the types used when |
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| 306 | * setting the retry ammounts. |
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| 307 | */ |
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| 308 | /* constants for type of set */ |
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| 309 | #define SCTP_MAXATTEMPT_INIT 2 |
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| 310 | #define SCTP_MAXATTEMPT_SEND 3 |
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| 311 | |
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| 312 | /* Here we define the default timers and the |
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| 313 | * default number of attemts we make for |
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| 314 | * each respective side (send/init). |
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| 315 | */ |
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| 316 | |
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| 317 | /* init timer def = 3sec */ |
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| 318 | #define SCTP_INIT_SEC 3 |
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| 319 | #define SCTP_INIT_NSEC 0 |
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| 320 | |
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| 321 | /* send timer def = 3 seconds */ |
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| 322 | #define SCTP_SEND_SEC 1 |
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| 323 | #define SCTP_SEND_NSEC 0 |
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| 324 | |
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| 325 | /* recv timer def = 200ms (in nsec) */ |
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| 326 | #define SCTP_RECV_SEC 0 |
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| 327 | #define SCTP_RECV_NSEC 200000000 |
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| 328 | |
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| 329 | /* 30 seconds + RTO */ |
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| 330 | #define SCTP_HB_SEC 30 |
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| 331 | #define SCTP_HB_NSEC 0 |
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| 332 | |
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| 333 | |
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| 334 | /* 300 ms */ |
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| 335 | #define SCTP_SHUTDOWN_SEC 0 |
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| 336 | #define SCTP_SHUTDOWN_NSEC 300000000 |
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| 337 | |
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| 338 | #define SCTP_RTO_UPPER_BOUND 60000000 /* 60 sec in micro-second's */ |
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| 339 | #define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */ |
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| 340 | #define SCTP_RTO_LOWER_BOUND 1000000 /* 1 sec in micro-sec's */ |
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| 341 | |
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| 342 | #define SCTP_DEF_MAX_INIT 8 |
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| 343 | #define SCTP_DEF_MAX_SEND 10 |
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| 344 | |
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| 345 | #define SCTP_DEF_PMTU_RAISE 600 /* 10 Minutes between raise attempts */ |
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| 346 | #define SCTP_DEF_PMTU_MIN 600 |
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| 347 | |
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| 348 | #define SCTP_MSEC_IN_A_SEC 1000 |
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| 349 | #define SCTP_USEC_IN_A_SEC 1000000 |
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| 350 | #define SCTP_NSEC_IN_A_SEC 1000000000 |
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| 351 | |
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| 352 | |
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| 353 | /* Events that SCTP will look for, these |
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| 354 | * are or'd together to declare what SCTP |
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| 355 | * wants. Each select mask/poll list should be |
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| 356 | * set for the fd, if the bit is on. |
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| 357 | */ |
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| 358 | #define SCTP_EVENT_READ 0x000001 |
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| 359 | #define SCTP_EVENT_WRITE 0x000002 |
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| 360 | #define SCTP_EVENT_EXCEPT 0x000004 |
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| 361 | |
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| 362 | /* The following constant is a value for this |
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| 363 | * particular implemenation. It is quite arbitrary and |
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| 364 | * is used to limit how much data will be queued up to |
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| 365 | * a sender, waiting for cwnd to be larger than flightSize. |
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| 366 | * All implementations will need this protection is some |
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| 367 | * way due to buffer size constraints. |
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| 368 | */ |
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| 369 | |
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| 370 | #define SCTP_MAX_OUTSTANDING_DG 10000 |
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| 371 | |
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| 372 | |
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| 373 | |
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| 374 | /* This constant (SCTP_MAX_READBUFFER) define |
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| 375 | * how big the read/write buffer is |
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| 376 | * when we enter the fd event notification |
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| 377 | * the buffer is put on the stack, so the bigger |
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| 378 | * it is the more stack you chew up, however it |
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| 379 | * has got to be big enough to handle the bigest |
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| 380 | * message this O/S will send you. In solaris |
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| 381 | * with sockets (not TLI) we end up at a value |
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| 382 | * of 64k. In TLI we could do partial reads to |
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| 383 | * get it all in with less hassel.. but we |
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| 384 | * write to sockets for generality. |
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| 385 | */ |
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| 386 | #define SCTP_MAX_READBUFFER 65536 |
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| 387 | #define SCTP_ADDRMAX 60 |
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| 388 | |
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| 389 | /* amount peer is obligated to have in rwnd or |
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| 390 | * I will abort |
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| 391 | */ |
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| 392 | #define SCTP_MIN_RWND 1500 |
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| 393 | |
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| 394 | #define SCTP_WINDOW_MIN 1500 /* smallest rwnd can be */ |
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| 395 | #define SCTP_WINDOW_MAX 1048576 /* biggest I can grow rwnd to |
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| 396 | * My playing around suggests a |
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| 397 | * value greater than 64k does not |
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| 398 | * do much, I guess via the kernel |
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| 399 | * limitations on the stream/socket. |
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| 400 | */ |
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| 401 | |
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| 402 | #define SCTP_MAX_BUNDLE_UP 256 /* max number of chunks I can bundle */ |
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| 403 | |
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| 404 | /* I can handle a 1meg re-assembly */ |
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| 405 | #define SCTP_DEFAULT_MAXMSGREASM 1048576 |
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| 406 | |
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| 407 | |
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| 408 | #define SCTP_DEFAULT_MAXWINDOW 32768 /* default rwnd size */ |
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| 409 | #define SCTP_DEFAULT_MAXSEGMENT 1500 /* MTU size, this is the default |
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| 410 | * to which we set the smallestMTU |
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| 411 | * size to. This governs what is the |
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| 412 | * largest size we will use, of course |
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| 413 | * PMTU will raise this up to |
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| 414 | * the largest interface MTU or the |
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| 415 | * ceiling below if there is no |
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| 416 | * SIOCGIFMTU. |
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| 417 | */ |
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| 418 | #ifdef LYNX |
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| 419 | #define DEFAULT_MTU_CEILING 1500 /* Since Lynx O/S is brain dead |
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| 420 | * in the way it handles the |
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| 421 | * raw IP socket, insisting |
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| 422 | * on makeing its own IP |
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| 423 | * header, we limit the growth |
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| 424 | * to that of the e-net size |
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| 425 | */ |
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| 426 | #else |
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| 427 | #define DEFAULT_MTU_CEILING 2048 /* If no SIOCGIFMTU, highest value |
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| 428 | * to raise the PMTU to, i.e. |
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| 429 | * don't try to raise above this |
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| 430 | * value. Tune this per your |
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| 431 | * largest MTU interface if your |
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| 432 | * system does not support the |
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| 433 | * SIOCGIFMTU ioctl. |
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| 434 | */ |
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| 435 | #endif |
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| 436 | #define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */ |
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| 437 | #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ |
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| 438 | /* This is how long a secret lives, NOT how long a cookie lives */ |
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| 439 | #define SCTP_HOW_LONG_COOKIE_LIVE 3600 /* how many seconds the current secret will live */ |
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| 440 | |
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| 441 | #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ |
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| 442 | #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ |
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| 443 | |
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| 444 | #ifdef USE_MD5 |
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| 445 | #define SCTP_SIGNATURE_SIZE 16 /* size of a MD5 signature */ |
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| 446 | #else |
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| 447 | #define SCTP_SIGNATURE_SIZE 20 /* size of a SLA-1 signature */ |
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| 448 | #endif |
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| 449 | /* Here are the notification constants |
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| 450 | * that the code and upper layer will get |
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| 451 | */ |
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| 452 | |
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| 453 | /* association is up */ |
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| 454 | #define SCTP_NOTIFY_ASSOC_UP 1 |
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| 455 | |
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| 456 | /* association is down */ |
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| 457 | #define SCTP_NOTIFY_ASSOC_DOWN 2 |
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| 458 | |
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| 459 | /* interface on a association is down |
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| 460 | * and out of consideration for selection. |
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| 461 | */ |
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| 462 | #define SCTP_NOTIFY_INTF_DOWN 3 |
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| 463 | |
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| 464 | /* interface on a association is up |
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| 465 | * and now back in consideration for selection. |
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| 466 | */ |
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| 467 | #define SCTP_NOTIFY_INTF_UP 4 |
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| 468 | |
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| 469 | /* The given datagram cannot be delivered |
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| 470 | * to the peer, this will probably be followed |
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| 471 | * by a SCTP_NOTFIY_ASSOC_DOWN. |
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| 472 | */ |
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| 473 | #define SCTP_NOTIFY_DG_FAIL 5 |
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| 474 | |
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| 475 | /* Sent dg on non-open stream extreme code error! |
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| 476 | */ |
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| 477 | #define SCTP_NOTIFY_STRDATA_ERR 6 |
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| 478 | |
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| 479 | #define SCTP_NOTIFY_ASSOC_ABORTED 7 |
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| 480 | |
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| 481 | /* The stream ones are not used yet, but could |
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| 482 | * be when a association opens. |
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| 483 | */ |
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| 484 | #define SCTP_NOTIFY_PEER_OPENED_STR 8 |
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| 485 | #define SCTP_NOTIFY_STREAM_OPENED_OK 9 |
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| 486 | |
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| 487 | /* association sees a restart event */ |
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| 488 | #define SCTP_NOTIFY_ASSOC_RESTART 10 |
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| 489 | |
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| 490 | /* a user requested HB returned */ |
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| 491 | #define SCTP_NOTIFY_HB_RESP 11 |
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| 492 | |
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| 493 | /* a result from a REL-REQ */ |
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| 494 | #define SCTP_NOTIFY_RELREQ_RESULT_OK 12 |
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| 495 | #define SCTP_NOTIFY_RELREQ_RESULT_FAILED 13 |
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| 496 | |
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| 497 | /* clock variance is 10ms or 10,000 us's */ |
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| 498 | #define SCTP_CLOCK_GRAINULARITY 10000 |
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| 499 | |
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| 500 | #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here |
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| 501 | * this detracts a small amount for ipv4 |
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| 502 | * but it simplifies the ipv6 addition |
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| 503 | */ |
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| 504 | |
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| 505 | #define SCTP_NUM_FDS 3 |
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| 506 | |
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| 507 | /* raw IP filedescriptor */ |
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| 508 | #define SCTP_FD_IP 0 |
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| 509 | /* raw ICMP filedescriptor */ |
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| 510 | #define SCTP_FD_ICMP 1 |
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| 511 | /* processes contact me for requests here */ |
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| 512 | #define SCTP_REQUEST 2 |
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| 513 | |
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| 514 | |
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| 515 | #define SCTP_DEAMON_PORT 9899 |
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| 516 | |
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| 517 | /* Deamon registration message types/responses */ |
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| 518 | #define DEAMON_REGISTER 0x01 |
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| 519 | #define DEAMON_REGISTER_ACK 0x02 |
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| 520 | #define DEAMON_DEREGISTER 0x03 |
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| 521 | #define DEAMON_DEREGISTER_ACK 0x04 |
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| 522 | #define DEAMON_CHECKADDR_LIST 0x05 |
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| 523 | |
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| 524 | #define DEAMON_MAGIC_VER_LEN 0xff |
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| 525 | |
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| 526 | /* max times I will attempt to send a message to deamon */ |
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| 527 | #define SCTP_MAX_ATTEMPTS_AT_DEAMON 5 |
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| 528 | #define SCTP_TIMEOUT_IN_POLL_FOR_DEAMON 1500 /* 1.5 seconds */ |
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| 529 | |
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| 530 | /* modular comparison */ |
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| 531 | /* True if a > b (mod = M) */ |
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| 532 | #define compare_with_wrap(a, b, M) ((a > b) && ((a - b) < (M >> 1))) || \ |
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| 533 | ((b > a) && ((b - a) > (M >> 1))) |
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| 534 | |
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| 535 | #ifndef TIMEVAL_TO_TIMESPEC |
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| 536 | #define TIMEVAL_TO_TIMESPEC(tv, ts) \ |
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| 537 | { \ |
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| 538 | (ts)->tv_sec = (tv)->tv_sec; \ |
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| 539 | (ts)->tv_nsec = (tv)->tv_usec * 1000; \ |
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| 540 | } |
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| 541 | #endif |
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| 542 | |
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| 543 | /* pegs */ |
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| 544 | #define SCTP_NUMBER_OF_PEGS 21 |
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| 545 | /* peg index's */ |
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| 546 | #define SCTP_PEG_SACKS_SEEN 0 |
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| 547 | #define SCTP_PEG_SACKS_SENT 1 |
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| 548 | #define SCTP_PEG_TSNS_SENT 2 |
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| 549 | #define SCTP_PEG_TSNS_RCVD 3 |
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| 550 | #define SCTP_DATAGRAMS_SENT 4 |
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| 551 | #define SCTP_DATAGRAMS_RCVD 5 |
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| 552 | #define SCTP_RETRANTSN_SENT 6 |
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| 553 | #define SCTP_DUPTSN_RECVD 7 |
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| 554 | #define SCTP_HBR_RECV 8 |
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| 555 | #define SCTP_HBA_RECV 9 |
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| 556 | #define SCTP_HB_SENT 10 |
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| 557 | #define SCTP_DATA_DG_SENT 11 |
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| 558 | #define SCTP_DATA_DG_RECV 12 |
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| 559 | #define SCTP_TMIT_TIMER 13 |
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| 560 | #define SCTP_RECV_TIMER 14 |
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| 561 | #define SCTP_HB_TIMER 15 |
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| 562 | #define SCTP_FAST_RETRAN 16 |
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| 563 | #define SCTP_PEG_TSNS_READ 17 |
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| 564 | #define SCTP_NONE_LFT_TO 18 |
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| 565 | #define SCTP_NONE_LFT_RWND 19 |
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| 566 | #define SCTP_NONE_LFT_CWND 20 |
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| 567 | |
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| 568 | |
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| 569 | |
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| 570 | #endif |
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| 571 | |
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