211 lines
5.8 KiB
C
211 lines
5.8 KiB
C
/* $KAME: dccp.h,v 1.10 2005/10/26 18:46:33 nishida Exp $ */
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/* $NetBSD: dccp.h,v 1.1 2015/02/10 19:11:52 rjs Exp $ */
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/*
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* Copyright (c) 2003 Joacim Häggmark, Magnus Erixzon, Nils-Erik Mattsson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Id: dccp.h,v 1.13 2003/07/31 11:14:41 joahag-9 Exp
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*/
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#ifndef _NETINET_DCCP_H_
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#define _NETINET_DCCP_H_
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/*
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* DCCP protocol header
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* draft-ietf-dccp-spec-01.txt
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*/
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struct dccphdr {
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u_short dh_sport; /* source port */
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u_short dh_dport; /* destination port */
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u_int8_t dh_off; /* Data offset */
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int8_t dh_cscov:4, /* Checksum Length */
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dh_ccval:4; /* Number of non data packets */
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#else
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u_int8_t dh_ccval:4,
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dh_cscov:4;
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#endif
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u_short dh_sum; /* Checksum */
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int32_t dh_x:1, /* long/short sequence number */
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dh_type:4,
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dh_res:3,
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dh_seq:24; /* Sequence number */
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#else
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u_int32_t dh_res:3, /* Reserved */
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dh_type:4, /* Type of message */
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dh_x:1, /* long/short sequence number */
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dh_seq:24;
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#endif
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};
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struct dccplhdr {
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u_short dh_sport; /* source port */
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u_short dh_dport; /* destination port */
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u_int8_t dh_off; /* Data offset */
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int8_t dh_cscov:4, /* Checksum Length */
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dh_ccval:4; /* Number of non data packets */
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#else
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u_int8_t dh_ccval:4,
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dh_cscov:4;
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#endif
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u_short dh_sum; /* Checksum */
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int8_t dh_x:1, /* long/short sequence number */
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dh_type:4,
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dh_res:3;
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#else
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u_int8_t dh_res:3, /* Reserved */
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dh_type:4, /* Type of message */
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dh_x:1; /* long/short sequence number */
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#endif
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u_int8_t dh_res2;
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u_int16_t dh_seq;
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u_int32_t dh_seq2; /* long sequence number */
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};
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struct dccp_nathdr {
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u_int16_t dh_sport; /* source port */
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u_int16_t dh_dport; /* destination port */
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u_int8_t dh_off;
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int8_t dh_cscov:4, /* Checksum Length */
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dh_ccval:4; /* Number of non data packets */
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#else
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u_int8_t dh_ccval:4,
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dh_cscov:4;
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#endif
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u_int16_t dh_seq;
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u_int32_t dh_seq2;
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};
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struct dccp_requesthdr {
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u_int32_t drqh_scode; /* Service Code */
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};
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struct dccp_acksubhdr {
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int32_t dah_res:8, /* Reserved */
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dah_ack:24; /* Acknowledgement number */
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#else
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u_int32_t dah_ack:24,
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dah_res:8;
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#endif
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};
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struct dccp_acksublhdr {
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u_int16_t dah_res; /* Reserved */
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u_int16_t dah_ack; /* Acknowledgement number */
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u_int32_t dah_ack2;
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};
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struct dccp_ackhdr {
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struct dccp_acksubhdr dash;
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};
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struct dccp_acklhdr {
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struct dccp_acksublhdr dash;
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};
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struct dccp_resethdr {
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struct dccp_acksublhdr drth_dash;
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u_int8_t drth_reason; /* Reason */
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u_int8_t drth_data1; /* Data 1 */
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u_int8_t drth_data2; /* Data 2 */
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u_int8_t drth_data3; /* Data 3 */
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};
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#define DCCP_TYPE_REQUEST 0
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#define DCCP_TYPE_RESPONSE 1
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#define DCCP_TYPE_DATA 2
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#define DCCP_TYPE_ACK 3
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#define DCCP_TYPE_DATAACK 4
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#define DCCP_TYPE_CLOSEREQ 5
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#define DCCP_TYPE_CLOSE 6
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#define DCCP_TYPE_RESET 7
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#define DCCP_TYPE_MOVE 8
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#define DCCP_FEATURE_CC 1
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#define DCCP_FEATURE_ECN 2
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#define DCCP_FEATURE_ACKRATIO 3
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#define DCCP_FEATURE_ACKVECTOR 4
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#define DCCP_FEATURE_MOBILITY 5
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#define DCCP_FEATURE_LOSSWINDOW 6
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#define DCCP_FEATURE_CONN_NONCE 8
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#define DCCP_FEATURE_IDENTREG 7
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#define DCCP_OPT_PADDING 0
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#define DCCP_OPT_DATA_DISCARD 1
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#define DCCP_OPT_SLOW_RECV 2
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#define DCCP_OPT_BUF_CLOSED 3
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#define DCCP_OPT_CHANGE_L 32
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#define DCCP_OPT_CONFIRM_L 33
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#define DCCP_OPT_CHANGE_R 34
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#define DCCP_OPT_CONFIRM_R 35
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#define DCCP_OPT_INIT_COOKIE 36
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#define DCCP_OPT_NDP_COUNT 37
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#define DCCP_OPT_ACK_VECTOR0 38
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#define DCCP_OPT_ACK_VECTOR1 39
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#define DCCP_OPT_RECV_BUF_DROPS 40
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#define DCCP_OPT_TIMESTAMP 41
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#define DCCP_OPT_TIMESTAMP_ECHO 42
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#define DCCP_OPT_ELAPSEDTIME 43
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#define DCCP_OPT_DATACHECKSUM 44
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#define DCCP_REASON_UNSPEC 0
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#define DCCP_REASON_CLOSED 1
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#define DCCP_REASON_INVALID 2
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#define DCCP_REASON_OPTION_ERR 3
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#define DCCP_REASON_FEA_ERR 4
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#define DCCP_REASON_CONN_REF 5
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#define DCCP_REASON_BAD_SNAME 6
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#define DCCP_REASON_BAD_COOKIE 7
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#define DCCP_REASON_INV_MOVE 8
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#define DCCP_REASON_UNANSW_CH 10
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#define DCCP_REASON_FRUITLESS_NEG 11
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#define DCCP_CCID 0x01
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#define DCCP_CSLEN 0x02
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#define DCCP_MAXSEG 0x04
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#define DCCP_SERVICE 0x08
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#define DCCP_NDP_LIMIT 16
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#define DCCP_SEQ_NUM_LIMIT 16777216
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#define DCCP_MAX_OPTIONS 32
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#define DCCP_CONNECT_TIMER (75 * hz)
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#define DCCP_CLOSE_TIMER (75 * hz)
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#define DCCP_TIMEWAIT_TIMER (60 * hz)
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#define DCCP_MAX_PKTS 100
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#endif
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