slip_str.h

VRTX 商用嵌入式实时操作系统

/*
 RCS header identifier - slip_str.h,v 1.3 1995/02/20 18:01:03 sford Exp
*/
/***************************************************************************
*
*		Copyright (c) 1995 Microtec Research, Inc.
*
*	All rights reserved. MICROTEC RESEARCH's source code is an unpublished
*	work and the use of a copyright notice does not imply otherwise.
*	This source code contains confidential, trade secret material of
*	MICROTEC RESEARCH. Any attempt or participation in deciphering,
*	decoding, reverse engineering or in any way altering the source code
*	is strictly prohibited, unless the prior written consent of
*	MICROTEC RESEARCH is obtained.
*
*
*	Module Name:		slip_str.h
*
*	Identification:		@(#) 1.1 slip_str.h
*
*	Date:			9/16/94  17:54:04
*
****************************************************************************
*/
/*
;* Confidential and Proprietary.
;* Copyrighted as an unpublished work.
;* (c) Copyright 1987-1994 Legent Corporation.
;* All rights reserved.
;* 
;* RESTRICTED RIGHTS
;* 
;* These programs contain trade secrets and are supplied under a license
;* agreement.  They may be used, disclosed, and/or copied only as
;* permitted under such license agreement.  Any copy must contain the
;* above copyright notice and this restricted rights notice.  Use,
;* copying, and/or disclosure of the programs is strictly prohibited
;* unless otherwise provided in the license agreement.
;*
 * Copyrighted as an unpublished work.
 * (c) Copyright 1987-1993 Lachman Technology, Incorporated
 * All rights reserved.
 * 
 * RESTRICTED RIGHTS
 * 
 * These programs are supplied under a license.  They may be used,
 * disclosed, and/or copied only as permitted under such license
 * agreement.  Any copy must contain the above copyright notice and
 * this restricted rights notice.  Use, copying, and/or disclosure
 * of the programs is strictly prohibited unless otherwise provided
 * in the license agreement.
 */

#if !defined(SLIP_STR_H)
#define SLIP_STR_H

struct slip_state {
	mblk_t FAR	*ss_mp;		/* where we gather incoming octets */
	mblk_t FAR	*ss_save;	/* pointer to where this struct lives */
	int		ss_flags;	/* state information and such	*/
	int		ss_mtu;		/* mtu for this interface	*/
	mblk_t FAR	*ss_ifstats_mp;
	struct ifstats FAR * ss_ifstats;	/* if stat structure	*/
#if defined(TCPCOMPRESSION)
	mblk_t FAR	*ss_comp_mp;	/* mblk to hold ss_comp */
	struct incompress FAR	*ss_comp;	/* tcp compression struct */
#endif
	char		ss_ifname[IFNAMSIZ];	/* the name of this if.	*/
};

typedef struct slip_state slip_state_t;

/*
 * macros for state flags
 */
#define SS_ERROR		0x00000001 /* when this is set an error in  */
					   /* framing has occured, which    */
					   /* implies that we eat octets    */
					   /* until we receive a frame_end  */
#define SS_ESCAPE		0x00000002 /* when set it implies the next  */
					   /* octet should be escaped       */
#define SS_COMPRESS		0x00000004 /* set when we are compressing   */
#define SS_AUTOCOMPRESS		0x00000008 /* set when we will accept       */
					   /* compressed packets	    */
#define SS_NOICMP		0x00000010 /* if set we will not send out   */
					   /* any icmp packets		    */
#define SS_BOUND		0x00000020 /* interface is bound	    */

/* SS_INIT_FLAGS is used to initialize the ss_flags field in slip_state_t */
#define SS_INIT_FLAGS	0

#define MAXSLIP	296
#define MINSLIP	3	/* minimum packet size for slip. if we get something */
			/* smaller, we just drop it silently		*/

#define	SLIP_MODID 13

#define IP_SAP	0x800	/* SAP for IP protocol */

/* ioctl's */
#define	SLIPIOCTL	('P'<<8)
#define	S_MTU		(SLIPIOCTL | 0xff)
#define	S_COMPRESSON	(SLIPIOCTL | 0xfe)
#define	S_COMPRESSOFF	(SLIPIOCTL | 0xfd)
#define	S_COMPRESSAON	(SLIPIOCTL | 0xfc)
#define	S_COMPRESSAOFF	(SLIPIOCTL | 0xfb)
#define	S_NOICMP	(SLIPIOCTL | 0xfa)
#define	S_ICMP		(SLIPIOCTL | 0xf9)
#define S_SETSPEED	(SLIPIOCTL | 0xf8)

#endif