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Diffstat (limited to 'sys/netccitt/pk.h')
| -rw-r--r-- | sys/netccitt/pk.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/sys/netccitt/pk.h b/sys/netccitt/pk.h new file mode 100644 index 0000000..528e0a6 --- /dev/null +++ b/sys/netccitt/pk.h @@ -0,0 +1,207 @@ +/* + * 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 |
