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- /*
- * 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
- */
-
- /*
- *
- * 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 ();
-
- /* 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
-