FreeBSD/Linux Kernel Cross Reference
sys/netccitt/pk.h

     /*      $NetBSD: pk.h,v 1.10 2003/08/07 16:33:03 agc Exp $      */
     
     /*
      * 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
     */
    
    /*
     * Copyright (c) 1984 University of British Columbia.
     *
     * 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
     */
    
    #ifndef _NETCCITT_PK_H_
    #define _NETCCITT_PK_H_
    
    /*
     *
     *  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
   
   #endif /* _NETCCITT_PK_H_ */

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