dli_data.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef	lint
static char *sccsid = "@(#)dli_data.c	4.2	ULTRIX	9/4/90";
#endif	lint

/*
 * Program dli_data.c,  Module DLI 
 *
 * Copyright (C) 1985 by
 * Digital Equipment Corporation, Maynard, Mass.
 *
 * 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.
 *
 * The information in this software is subject to change without  notice
 * and  should  not be  construed  as  a commitment by Digital Equipment
 * Corporation.
 *
 * Digital assumes no responsibility for the use or  reliability  of its
 * software on equipment which is not supplied by Digital.
 *
 *
 * Networks & Communications Software Engineering
 *
 * IDENT HISTORY:
 *
 * 1.00 10-Jul-1985
 *      DECnet-ULTRIX   V1.0
 *
 * 2.00 18-Apr-1986
 *		DECnet-Ultrix	V2.0
 *
 * Added sysid and point-to-point support
 *
 */

#include "../../h/param.h"
#include "../../h/systm.h"
#include "../../h/mbuf.h"
#include "../../h/protosw.h"
#include "../../h/socket.h"
#include "../../h/socketvar.h"
#include "../../h/errno.h"
#include "../../h/smp_lock.h"
#include "../../h/cpudata.h"

#include "../../net/net/if.h"

#include "../../net/netinet/in.h"
#include "../../net/netinet/if_ether.h"

#include "../../net/netdnet/dli_var.h"


/* general dli data */
struct ether_header no_enet_header;		/* Empty Ethernet header */
struct ifqueue dli_intrq;			/* input packet queue */

/* MOP loopback data */
struct dli_timers lback_timers[DLI_MAX_LBTIMR]; /* loopback evl timers */
u_char loopback_mcast[] = LBACKMCAST;	 /* mcast addr for loopback protocol */

/* MOP sysid data */
u_short	nqna;                            /* number of qna's */
struct  sockaddr_dl sysid_dst;     	 /* destination info */
u_char	sysid_mcast[] = SYSIDMCAST;      /* mcast addr for sysid */
struct  ether_pa *sysid_haddr_p;	 /* pointer to hw addr in sysid msg */
u_char	sysid_msg[SYSID_MSGL];           /* sysid buffer */
struct	dli_sysid_to sysid_to[MAXQNAS];  /* time out structs */
u_char  *sysid_devtyp_p = 0;		 /* ptr to dev type in sysid message */
struct	dli_sysid_dev sysid_dev[] = {  	 /* devices needing sysid support */
	{ "qe", QNA },
	{ "ln", SVA },
	{ "ni", BNA },
	{ "",	0 },			/* extra space */
	{ "",	0 },			/* extra space */
	{ "",	0 },			/* extra space */
	{ "",	0 }			/* list terminator */
};
struct	dli_sysid_dev mop_dev_code[] = {  /* MOP code for each device */
	{ "xna", SVA },	
	{ "lqe", LQA },
	{ "de",	UNA },	
	{ "qe", QNA },
	{ "ln", SVA },
	{ "ni", BNA },
	{ "",	0 },			/* extra space */
	{ "",	0 },			/* extra space */
	{ "",	0 },			/* extra space */
	{ "",	0 }			/* list terminator */
};

/* 802.3 data */
struct	if_isapt	if_isapt[MAX_BROADCSTDEV];	/* isap struct per device */

struct lock_t lk_dli;                   /* protocol lock */