[unix-history] / sys / netccitt / hd_var.h

/*
 * Copyright (c) University of British Columbia, 1984
 * Copyright (c) 1990 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.
 *
 *	from: @(#)hd_var.h	7.4 (Berkeley) 5/29/91
 *	$Id: hd_var.h,v 1.2 1993/10/16 19:46:41 rgrimes Exp $
 */

#ifndef _NETCCITT_HD_VAR_H_
#define _NETCCITT_HD_VAR_H_ 1

/*
 *
 * hdlc control block
 *
 */

struct	hdtxq {
	struct	mbuf *head;
	struct	mbuf *tail;
};

struct	hdcb {
	struct	hdcb *hd_next;	/* pointer to next hdlc control block */
	char	hd_state;	/* link state */
	char	hd_vs;		/* send state variable */
	char	hd_vr;		/* receive state variable */
	char	hd_lastrxnr;	/* last received N(R) */
	char	hd_lasttxnr;	/* last transmitted N(R) */
	char	hd_condition;
#define TIMER_RECOVERY_CONDITION        0x01
#define REJ_CONDITION                   0x02
#define REMOTE_RNR_CONDITION            0X04
	char	hd_retxcnt;
	char	hd_xx;
	struct	hdtxq hd_txq;
	struct	mbuf *hd_retxq[MODULUS];
	char	hd_retxqi;
	char	hd_rrtimer;
	char	hd_timer;
#define SET_TIMER(hdp)		hdp->hd_timer = hd_t1
#define KILL_TIMER(hdp)		hdp->hd_timer = 0
	char	hd_dontcopy;	/* if-driver doesn't free I-frames */
	struct	ifnet *hd_ifp;	/* device's network visible interface */
	struct	ifaddr *hd_ifa;	/* device's X.25 network address */
	struct	x25config *hd_xcp;
	caddr_t	hd_pkp;		/* Level III junk */
	int	(*hd_output)();	/* separate entry for HDLC direct output */

	/* link statistics */

	long	hd_iframes_in;
	long	hd_iframes_out;
	long	hd_rrs_in;
	long	hd_rrs_out;
	short	hd_rejs_in;
	short	hd_rejs_out;
	long	hd_window_condition;
	short	hd_invalid_ns;
	short	hd_invalid_nr;
	short	hd_timeouts;
	short	hd_resets;
	short	hd_unknown;
	short	hd_frmrs_in;
	short	hd_frmrs_out;
	short	hd_rnrs_in;
	short	hd_rnrs_out;
};

#ifdef KERNEL
struct	hdcb *hdcbhead;		/* head of linked list of hdcb's */
struct	Frmr_frame hd_frmr;	/* rejected frame diagnostic info */
struct	ifqueue hdintrq;	/* hdlc packet input queue */

int	hd_t1;			/* timer T1 value */
int	hd_t3;			/* RR send timer */
int	hd_n2;			/* frame retransmission limit */
#endif
#endif /* _NETCCITT_HD_VAR_H_ */
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) University of British Columbia, 1984
	3	* Copyright (c) 1990 The Regents of the University of California.
	4	* All rights reserved.
	5	*
	6	* This code is derived from software contributed to Berkeley by
	7	* the Laboratory for Computation Vision and the Computer Science Department
	8	* of the University of British Columbia.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. All advertising materials mentioning features or use of this software
	19	* must display the following acknowledgement:
	20	* This product includes software developed by the University of
	21	* California, Berkeley and its contributors.
	22	* 4. Neither the name of the University nor the names of its contributors
	23	* may be used to endorse or promote products derived from this software
	24	* without specific prior written permission.
	25	*
	26	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	27	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	28	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	29	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	30	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	31	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	32	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	33	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	34	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	35	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	36	* SUCH DAMAGE.
	37	*
1cdffd64	38	* from: @(#)hd_var.h 7.4 (Berkeley) 5/29/91
8ace4366	39	* $Id: hd_var.h,v 1.2 1993/10/16 19:46:41 rgrimes Exp $
15637ed4 RG	40	*/
15637ed4 RG	41
8ace4366 GW	42	#ifndef _NETCCITT_HD_VAR_H_
	43	#define _NETCCITT_HD_VAR_H_ 1
	44
15637ed4 RG	45	/*
	46	*
	47	* hdlc control block
	48	*
	49	*/
	50
	51	struct hdtxq {
	52	struct mbuf *head;
	53	struct mbuf *tail;
	54	};
	55
	56	struct hdcb {
	57	struct hdcb hd_next; / pointer to next hdlc control block */
	58	char hd_state; /* link state */
	59	char hd_vs; /* send state variable */
	60	char hd_vr; /* receive state variable */
	61	char hd_lastrxnr; /* last received N(R) */
	62	char hd_lasttxnr; /* last transmitted N(R) */
	63	char hd_condition;
	64	#define TIMER_RECOVERY_CONDITION 0x01
	65	#define REJ_CONDITION 0x02
	66	#define REMOTE_RNR_CONDITION 0X04
	67	char hd_retxcnt;
	68	char hd_xx;
	69	struct hdtxq hd_txq;
	70	struct mbuf *hd_retxq[MODULUS];
	71	char hd_retxqi;
	72	char hd_rrtimer;
	73	char hd_timer;
	74	#define SET_TIMER(hdp) hdp->hd_timer = hd_t1
	75	#define KILL_TIMER(hdp) hdp->hd_timer = 0
	76	char hd_dontcopy; /* if-driver doesn't free I-frames */
	77	struct ifnet hd_ifp; / device's network visible interface */
	78	struct ifaddr hd_ifa; / device's X.25 network address */
	79	struct x25config *hd_xcp;
	80	caddr_t hd_pkp; /* Level III junk */
	81	int (hd_output)(); / separate entry for HDLC direct output */
	82
	83	/* link statistics */
	84
	85	long hd_iframes_in;
	86	long hd_iframes_out;
	87	long hd_rrs_in;
	88	long hd_rrs_out;
	89	short hd_rejs_in;
	90	short hd_rejs_out;
	91	long hd_window_condition;
	92	short hd_invalid_ns;
	93	short hd_invalid_nr;
	94	short hd_timeouts;
	95	short hd_resets;
	96	short hd_unknown;
	97	short hd_frmrs_in;
	98	short hd_frmrs_out;
	99	short hd_rnrs_in;
	100	short hd_rnrs_out;
	101	};
	102
	103	#ifdef KERNEL
	104	struct hdcb hdcbhead; / head of linked list of hdcb's */
	105	struct Frmr_frame hd_frmr; /* rejected frame diagnostic info */
	106	struct ifqueue hdintrq; /* hdlc packet input queue */
	107
	108	int hd_t1; /* timer T1 value */
109	int hd_t3; /* RR send timer */
110	int hd_n2; /* frame retransmission limit */
111	#endif
8ace4366	112	#endif /* _NETCCITT_HD_VAR_H_ */