/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	$Id: $
 */

#ifndef _UCRED_H_
#define	_UCRED_H_

/*
 * Credentials.
 */
struct ucred {
	u_short	cr_ref;			/* reference count */
	uid_t	cr_uid;			/* effective user id */
	short	cr_role;		/* role expressing priviledge set */
	short	cr_ngroups;		/* number of groups */
	gid_t	cr_groups[NGROUPS_MAX];	/* groups */
};
#define cr_gid cr_groups[0]
#define NOCRED ((struct ucred *)-1)

#ifdef KERNEL
#define	crhold(cr)	(cr)->cr_ref++

/* interface symbols */
#define	__ISYM_VERSION__ "1"	/* XXX RCS major revision number of hdr file */
#include "isym.h"		/* this header has interface symbols */

/* global variables used in core kernel and other modules */

/* functions used in modules */
__ISYM__(struct ucred *, crget, (void))
__ISYM__(struct ucred *, crdup, (const struct ucred *))
__ISYM__(void, crfree, (struct ucred *))
__ISYM__(int, groupmember, (gid_t gid, const struct ucred *cred))

#undef __ISYM__
#undef __ISYM_ALIAS__
#undef __ISYM_VERSION__
#endif KERNEL

#endif /* !_UCRED_H_ */
