in_var.h

VRTX 商用嵌入式实时操作系统

/***************************************************************************
*
*               Copyright (c) 1993 READY SYSTEMS CORPORATION.
*
*       All rights reserved. READY SYSTEMS' source code is an unpublished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
*       READY SYSTEMS. 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
*       READY SYSTEMS is obtained.
*
*
*       Module Name:            in_var.h
*
*       Identification:         @(#) 2.2 in_var.h
*
*       Date:                   9/16/94  17:36:00
*
****************************************************************************
*/

/*
 RCS header identifier - in_var.h,v 1.2 1995/01/05 16:32:22 sriram Exp
*/
/*
 * Copyrighted as an unpublished work.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.
 */
/*
 * Copyright (c) 1985 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/* **********************************************************************
 * 
 * CHANGE HISTORY:
 *
 * ----------------------------------------------------------------------
 * DATE           CHANGES
 * ----------------------------------------------------------------------
 *
 * 12/14/94       Included the Version 5 TCP compatible code for SNMP_V2.
 *                Check for #ifdef VER5_COMPAT.
 * 
 * ********************************************************************* */

#ifdef SNX
#ifndef VER5_COMPAT
#define VER5_COMPAT  /* This needs to be compiled, SNX */
#endif
#endif

#ifndef in_var__h
#define in_var__h

#ifdef __cplusplus
extern "C" {
#endif

/*
 * in_var.h	7.1 (Berkeley) 6/5/86 
 */

/*
 * Interface address, Internet version.  One of these structures is allocated
 * for each interface with an Internet address. The ifaddr structure contains
 * the protocol-independent part of the structure and is assumed to be first. 
 */
struct in_ifaddr {
	struct ifaddr   ia_ifa;	/* protocol-independent info */
#define	ia_addr		ia_ifa.ifa_addr
#define	ia_broadaddr	ia_ifa.ifa_broadaddr
#define	ia_dstaddr	ia_ifa.ifa_dstaddr
#define	ia_ifp		ia_ifa.ifa_ifp
	u_long          ia_net;	/* network number of interface */
	u_long          ia_netmask;	/* mask of net part */
	u_long          ia_subnet;	/* subnet number, including net */
	u_long          ia_subnetmask;	/* mask of net + subnet */
	struct in_addr  ia_netbroadcast;	/* broadcast addr for
						 * (logical) net */
	int             ia_flags;
};

/*
 * ia_flags 
 */
#define	IFA_ROUTE	0x01	/* routing entry installed */

#ifdef __cplusplus
}
#endif

#ifdef VER5_COMPAT
/* SNMP will use these structures. */

/*
 * Internet multicast address structure.  There is one of these for each IP
 * multicast group to which this host belongs on a given network interface.
 * They are kept in a linked list, rooted in the interface's in_ifaddr
 * structure.
 */
struct in_multi {
    struct in_addr    inm_addr; /* IP multicast address             */
    ifnet_t     *inm_ifp;   /* back pointer to ifnet            */
    struct in_ifaddr *inm_ia;   /* back pointer to in_ifaddr        */
    u_int         inm_refcount; /* no. membership claims by sockets */
    u_int         inm_timer;    /* IGMP membership report timer     */
    struct in_multi  *inm_next; /* ptr to next multicast address    */
};


/*
 * Interface address, Internet version.  One of these structures is allocated
 * for each interface with an Internet address. The ifaddr structure contains
 * the protocol-independent part of the structure and is assumed to be first.
 */
struct in__ifaddr {
    struct ifaddr   ia_ifa; /* protocol-independent info */
#define ia__ifp      ia_ifa.ifa_ifp
#define ia__refcnt   ia_ifa.ifa_refcnt
#define ia__flags    ia_ifa.ifa_flags
    u_long          ia__net;     /* network number of interface */
    u_long          ia__netmask; /* mask of net part */
    u_long          ia__subnet;  /* subnet number, including net */
    u_long          ia__subnetmask;  /* mask of subnet part */
    struct in_addr  ia__netbroadcast; /* to recognize net broadcasts */
    struct in__ifaddr *ia__next;  /* next in the list */
    struct sockaddr_in ia__addr; /* reserve space for interface name */
    struct sockaddr_in ia__dstaddr;  /* reserve space for broadcast addr */
#define iabroadaddr    ia__dstaddr
    struct sockaddr_in ia__sockmask; /* reserve space for general netmask */
    struct in_multi *ia__multiaddrs; /* list of multicast addresses */
};


#endif

#endif				/* in_var__h */