xref: /external/tcpdump/nfsfh.h

/* @(#) $Header: /tcpdump/master/tcpdump/nfsfh.h,v 1.13 2002-04-24 06:27:05 guy Exp $ (LBL) */

/*
 * Copyright (c) 1993, 1994 Jeffrey C. Mogul, Digital Equipment Corporation,
 * Western Research Laboratory. All rights reserved.
 * Copyright (c) 2001 Compaq Computer Corporation. All rights reserved.
 *
 *  Permission to use, copy, and modify this software and its
 *  documentation is hereby granted only under the following terms and
 *  conditions.  Both the above copyright notice and this permission
 *  notice must appear in all copies of the software, derivative works
 *  or modified versions, and any portions thereof, and both notices
 *  must appear in supporting documentation.
 *
 *  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.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS" AND COMPAQ COMPUTER CORPORATION
 *  DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 *  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.   IN NO
 *  EVENT SHALL COMPAQ COMPUTER CORPORATION BE LIABLE FOR ANY
 *  SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 *  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 *  OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 *  SOFTWARE.
 */

/*
 * nfsfh.h - NFS file handle definitions (for portable use)
 *
 * Jeffrey C. Mogul
 * Digital Equipment Corporation
 * Western Research Laboratory
 */

/*
 * Internal representation of dev_t, because different NFS servers
 * that we might be spying upon use different external representations.
 */
typedef struct {
	u_int32_t Minor;	/* upper case to avoid clashing with macro names */
	u_int32_t Major;
} my_devt;

#define	dev_eq(a,b)	((a.Minor == b.Minor) && (a.Major == b.Major))

/*
 * Many file servers now use a large file system ID.  This is
 * our internal representation of that.
 */
typedef	struct {
	my_devt	Fsid_dev;		/* XXX avoid name conflict with AIX */
	char Opaque_Handle[2 * 32 + 1];
	u_int32_t fsid_code;
} my_fsid;

#define	fsid_eq(a,b)	((a.fsid_code == b.fsid_code) &&\
			 dev_eq(a.Fsid_dev, b.Fsid_dev))

extern void Parse_fh(const unsigned char *, int, my_fsid *, u_int32_t *, const char **, const char **, int);