raw_cb.h

<B>Digital的Unix操作系统VAX 4.2源码</B>

/* static	char	*sccsid = "@(#)raw_cb.h	4.1	(ULTRIX)	7/2/90"; */
/************************************************************************
 *									*
 *			Copyright (c) 1984,1988 by			*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   This software is  derived  from  software  received  from  the	*
 *   University    of   California,   Berkeley,   and   from   Bell	*
 *   Laboratories.  Use, duplication, or disclosure is  subject  to	*
 *   restrictions  under  license  agreements  with  University  of	*
 *   California and with AT&T.						*
 *									*
 *   The information in this software is subject to change  without	*
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 *   Equipment Corporation.						*
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 *   Digital assumes no responsibility for the use  or  reliability	*
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 ************************************************************************/
/*
 *	15-Jan-88	lp
 *		Final 43bsd release
 */
/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	raw_cb.h	6.3 (Berkeley) 6/8/85
 */

/*
 * Raw protocol interface control block.  Used
 * to tie a socket to the generic raw interface.
 */
struct rawcb {
	struct	rawcb *rcb_next;	/* doubly linked list */
	struct	rawcb *rcb_prev;
	struct	socket *rcb_socket;	/* back pointer to socket */
	struct	sockaddr rcb_faddr;	/* destination address */
	struct	sockaddr rcb_laddr;	/* socket's address */
	struct	sockproto rcb_proto;	/* protocol family, protocol */
	caddr_t	rcb_pcb;		/* protocol specific stuff */
	struct 	mbuf *rcb_options;	/* protocol specific options */
	struct	route rcb_route;	/* routing information */
	short	rcb_flags;
};

/*
 * Since we can't interpret canonical addresses,
 * we mark an address present in the flags field.
 */
#define	RAW_LADDR	01
#define	RAW_FADDR	02
#define	RAW_DONTROUTE	04		/* no routing, default */

#define	sotorawcb(so)		((struct rawcb *)(so)->so_pcb)

/*
 * Nominal space allocated to a raw socket.
 */
#define	RAWSNDQ		2048
#define	RAWRCVQ		2048

/*
 * Format of raw interface header prepended by
 * raw_input after call from protocol specific
 * input routine.
 */
struct raw_header {
	struct	sockproto raw_proto;	/* format of packet */
	struct	sockaddr raw_dst;	/* dst address for rawintr */
	struct	sockaddr raw_src;	/* src address for sbappendaddr */
};

#ifdef KERNEL
struct rawcb rawcb;			/* head of list */
#endif