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	1	/*
	2	* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
	29	*/
	30	/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
	31	/*
	32	* Copyright (c) 1989, 1993
	33	* The Regents of the University of California. All rights reserved.
	34	*
	35	* Redistribution and use in source and binary forms, with or without
	36	* modification, are permitted provided that the following conditions
	37	* are met:
	38	* 1. Redistributions of source code must retain the above copyright
	39	* notice, this list of conditions and the following disclaimer.
	40	* 2. Redistributions in binary form must reproduce the above copyright
	41	* notice, this list of conditions and the following disclaimer in the
	42	* documentation and/or other materials provided with the distribution.
	43	* 3. All advertising materials mentioning features or use of this software
	44	* must display the following acknowledgement:
	45	* This product includes software developed by the University of
	46	* California, Berkeley and its contributors.
	47	* 4. Neither the name of the University nor the names of its contributors
	48	* may be used to endorse or promote products derived from this software
	49	* without specific prior written permission.
	50	*
	51	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	52	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	53	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	54	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	55	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	56	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	57	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	58	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	59	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	60	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	61	* SUCH DAMAGE.
	62	*
	63	* @(#)ucred.h 8.4 (Berkeley) 1/9/95
	64	*/
	65
	66	#ifndef _SYS_UCRED_H_
	67	#define _SYS_UCRED_H_
	68
	69	#include <sys/appleapiopts.h>
	70	#include <sys/cdefs.h>
	71	#include <sys/param.h>
	72	#include <bsm/audit.h>
	73
	74	#ifdef __APPLE_API_UNSTABLE
	75
	76	/*
	77	* In-kernel credential structure.
	78	*
	79	* Note that this structure should not be used outside the kernel, nor should
	80	* it or copies of it be exported outside.
	81	*/
	82	struct ucred {
	83	TAILQ_ENTRY(ucred) cr_link; /* never modify this without KAUTH_CRED_HASH_LOCK */
	84	u_long cr_ref; /* reference count */
	85
	86	/* credential hash depends on everything from this point on (see kauth_cred_get_hashkey) */
	87	uid_t cr_uid; /* effective user id */
	88	uid_t cr_ruid; /* real user id */
	89	uid_t cr_svuid; /* saved user id */
	90	short cr_ngroups; /* number of groups in advisory list */
	91	gid_t cr_groups[NGROUPS]; /* advisory group list */
	92	gid_t cr_rgid; /* real group id */
	93	gid_t cr_svgid; /* saved group id */
	94	uid_t cr_gmuid; /* user id for group membership purposes */
	95	struct auditinfo cr_au; /* user auditing data */
	96	};
	97	typedef struct ucred *kauth_cred_t;
	98
	99	/*
	100	* This is the external representation of struct ucred.
	101	*/
	102	struct xucred {
	103	u_int cr_version; /* structure layout version */
	104	uid_t cr_uid; /* effective user id */
	105	short cr_ngroups; /* number of advisory groups */
	106	gid_t cr_groups[NGROUPS]; /* advisory group list */
	107	};
	108	#define XUCRED_VERSION 0
	109
	110	#define cr_gid cr_groups[0]
	111	#define NOCRED ((kauth_cred_t )0) /* no credential available */
	112	#define FSCRED ((kauth_cred_t )-1) /* filesystem credential */
	113
	114	#ifdef KERNEL
	115	#ifdef __APPLE_API_OBSOLETE
	116	__BEGIN_DECLS
	117	int crcmp(kauth_cred_t cr1, kauth_cred_t cr2);
	118	int suser(kauth_cred_t cred, u_short *acflag);
	119	int set_security_token(struct proc * p);
	120	void cru2x(kauth_cred_t cr, struct xucred *xcr);
	121	__END_DECLS
	122	#endif /* __APPLE_API_OBSOLETE */
	123	#endif /* KERNEL */
	124	#endif /* __APPLE_API_UNSTABLE */
	125
	126	#endif /* !_SYS_UCRED_H_ */