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/* $OpenBSD: pk.h,v 1.4 2003/09/26 21:43:32 miod Exp $ */
/* $NetBSD: pk.h,v 1.6 1996/02/13 22:05:08 christos Exp $ */
/*
* Copyright (c) University of British Columbia, 1984
* Copyright (c) 1990, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Laboratory for Computation Vision and the Computer Science Department
* of the University of British Columbia.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)pk.h 8.1 (Berkeley) 6/10/93
*/
/*
*
* X.25 Packet Level Definitions:
*
*/
/* Packet type identifier field definitions. */
#define X25_CALL 11
#define X25_CALL_ACCEPTED 15
#define X25_CLEAR 19
#define X25_CLEAR_CONFIRM 23
#define X25_DATA 0
#define X25_INTERRUPT 35
#define X25_INTERRUPT_CONFIRM 39
#define X25_RR 1
#define X25_RNR 5
#define X25_REJECT 9
#define X25_RESET 27
#define X25_RESET_CONFIRM 31
#define X25_DIAGNOSTIC 241
#define X25_RESTART 251
#define X25_RESTART_CONFIRM 255
/* Restart cause field definitions. */
#define X25_RESTART_DTE_ORIGINATED 0
#define X25_RESTART_LOCAL_PROCEDURE_ERROR 1
#define X25_RESTART_NETWORK_CONGESTION 3
#define X25_RESTART_NETWORK_OPERATIONAL 7
#define X25_RESTART_DTE_ORIGINATED2 128
/* Miscellaneous definitions. */
#define DATA_PACKET_DESIGNATOR 0x01
#define RR_OR_RNR_PACKET_DESIGNATOR 0x02
#define RR_PACKET_DESIGNATOR 0x04
#define DEFAULT_WINDOW_SIZE 2
#define MODULUS 8
#define ADDRLN 1
#define MAXADDRLN 15
#define FACILITIESLN 1
#define MAXFACILITIESLN 10
#define MAXUSERDATA 16
#define MAXCALLINFOLN 1+15+1+10+16
#define PACKET_OK 0
#define IGNORE_PACKET 1
#define ERROR_PACKET 2
#ifndef CCITT_TYPES_DEFINED
#define CCITT_TYPES_DEFINED
#define FALSE 0
#define TRUE 1
typedef char bool;
typedef u_char octet;
#endif
/*
* X.25 Packet format definitions
* This will eventually have to be rewritten without reference
* to bit fields, to be ansi C compliant and allignment safe.
*/
struct x25_calladdr {
octet addrlens;
octet address_field[MAXADDRLN];
};
struct x25_packet {
octet bits;
octet logical_channel_number;
octet packet_type;
octet packet_data;
};
#define packet_cause packet_data
struct data_packet {
octet bits;
};
#define FACILITIES_REVERSE_CHARGE 0x1
#define FACILITIES_THROUGHPUT 0x2
#define FACILITIES_PACKETSIZE 0x42
#define FACILITIES_WINDOWSIZE 0x43
#define PKHEADERLN 3
#define DP(xp) (((struct data_packet *)&(xp) -> packet_type) -> bits)
#define PS(xp) X25GBITS(DP(xp), p_s)
#define PR(xp) X25GBITS(DP(xp), p_r)
#define MBIT(xp) X25GBITS(DP(xp), m_bit)
#define SPR(xp, v) X25SBITS(DP(xp), p_r, (v))
#define SPS(xp, v) X25SBITS(DP(xp), p_s, (v))
#define SMBIT(xp, v) X25SBITS(DP(xp), m_bit, (v))
#define LCN(xp) (xp -> logical_channel_number + \
(X25GBITS(xp -> bits, lc_group_number) ? (X25GBITS(xp -> bits, lc_group_number) << 8) : 0))
#define SET_LCN(xp, lcn) ((xp -> logical_channel_number = lcn), \
(X25SBITS(xp -> bits, lc_group_number, lcn > 255 ? lcn >> 8 : 0)))
/* Define X.25 packet level states. */
/* Call setup and clearing substates. */
#define LISTEN 0
#define READY 1
#define RECEIVED_CALL 2
#define SENT_CALL 3
#define DATA_TRANSFER 4
#define RECEIVED_CLEAR 5
#define SENT_CLEAR 6
/* DTE states. */
#define DTE_WAITING 7
#define DTE_RECEIVED_RESTART 8
#define DTE_SENT_RESTART 9
#define DTE_READY 0
/* Cleaning out ... */
#define LCN_ZOMBIE 10
#define MAXSTATES 11
/*
* The following definitions are used in a switch statement after
* determining the packet type. These values are returned by the
* pk_decode procedure.
*/
#define PK_CALL (0 * MAXSTATES)
#define PK_CALL_ACCEPTED (1 * MAXSTATES)
#define PK_CLEAR (2 * MAXSTATES)
#define PK_CLEAR_CONF (3 * MAXSTATES)
#define PK_DATA (4 * MAXSTATES)
#define PK_INTERRUPT (5 * MAXSTATES)
#define PK_INTERRUPT_CONF (6 * MAXSTATES)
#define PK_RR (7 * MAXSTATES)
#define PK_RNR (8 * MAXSTATES)
#define PK_RESET (9 * MAXSTATES)
#define PK_RESET_CONF (10 * MAXSTATES)
#define PK_RESTART (11 * MAXSTATES)
#define PK_RESTART_CONF (12 * MAXSTATES)
#define PK_REJECT (13 * MAXSTATES)
#define PK_DIAG_TYPE (14 * MAXSTATES)
#define PK_INVALID_PACKET (15 * MAXSTATES)
#define PK_DELETE_PACKET (PK_INVALID_PACKET)
/*
* The following definitions are used by the restart procedures
* for noting wether the PLE is supposed to behave as DTE or DCE
* (essentially necessary for operation over LLC2)
*/
#define DTE_DXERESOLVING 0x0001
#define DTE_PLAYDTE 0x0002
#define DTE_PLAYDCE 0x0004
#define DTE_CONNECTPENDING 0x0010
#define DTE_PRETENDDTE 0x0020
#define MAXRESTARTCOLLISIONS 10
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