214 lines
6.5 KiB
C
214 lines
6.5 KiB
C
/*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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
|
|
* $Id: pk.h,v 1.4 1995/05/30 08:08:57 rgrimes Exp $
|
|
*/
|
|
|
|
#ifndef _NETCCITT_PK_H_
|
|
#define _NETCITT_PK_H_
|
|
|
|
/*
|
|
*
|
|
* X.25 Packet Level Definitions:
|
|
*
|
|
*/
|
|
|
|
/* Packet type identifier field defintions. */
|
|
|
|
#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
|
|
|
|
typedef char bool;
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
typedef u_char octet;
|
|
|
|
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)))
|
|
|
|
struct mbuf *pk_template __P((int lcn, int type));
|
|
|
|
/* 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 CALL 0 * MAXSTATES
|
|
#define CALL_ACCEPTED 1 * MAXSTATES
|
|
#define CLEAR 2 * MAXSTATES
|
|
#define CLEAR_CONF 3 * MAXSTATES
|
|
#define DATA 4 * MAXSTATES
|
|
#define INTERRUPT 5 * MAXSTATES
|
|
#define INTERRUPT_CONF 6 * MAXSTATES
|
|
#define RR 7 * MAXSTATES
|
|
#define RNR 8 * MAXSTATES
|
|
#define RESET 9 * MAXSTATES
|
|
#define RESET_CONF 10 * MAXSTATES
|
|
#define RESTART 11 * MAXSTATES
|
|
#define RESTART_CONF 12 * MAXSTATES
|
|
#define REJECT 13 * MAXSTATES
|
|
#define DIAG_TYPE 14 * MAXSTATES
|
|
#define INVALID_PACKET 15 * MAXSTATES
|
|
#define DELETE_PACKET 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
|
|
|
|
#endif
|