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/* $OpenBSD: ucred.h,v 1.13 2018/06/21 13:58:21 visa Exp $ */
/* $NetBSD: ucred.h,v 1.12 1995/06/01 22:44:50 jtc Exp $ */
/*
* Copyright (c) 1989, 1993
* 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. 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.
*
* @(#)ucred.h 8.2 (Berkeley) 1/4/94
*/
#ifndef _SYS_UCRED_H_
#define _SYS_UCRED_H_
#include <sys/syslimits.h>
/*
* Credentials.
*/
struct ucred {
u_int cr_ref; /* reference count */
/* The following fields are all copied by crset() */
#define cr_startcopy cr_uid
uid_t cr_uid; /* effective user id */
uid_t cr_ruid; /* Real user id. */
uid_t cr_svuid; /* Saved effective user id. */
gid_t cr_gid; /* effective group id */
gid_t cr_rgid; /* Real group id. */
gid_t cr_svgid; /* Saved effective group id. */
short cr_ngroups; /* number of groups */
gid_t cr_groups[NGROUPS_MAX]; /* groups */
};
#define NOCRED ((struct ucred *)-1) /* no credential available */
#define FSCRED ((struct ucred *)-2) /* filesystem credential */
/*
* Userspace version, for use in syscalls arguments
*/
struct xucred {
uid_t cr_uid; /* user id */
gid_t cr_gid; /* group id */
short cr_ngroups; /* number of groups */
gid_t cr_groups[NGROUPS_MAX]; /* groups */
};
#ifdef _KERNEL
int crfromxucred(struct ucred *, const struct xucred *);
void crset(struct ucred *, const struct ucred *);
struct ucred *crcopy(struct ucred *cr);
struct ucred *crdup(struct ucred *cr);
void crfree(struct ucred *cr);
struct ucred *crget(void);
struct ucred *crhold(struct ucred *);
int suser(struct proc *p);
int suser_ucred(struct ucred *cred);
#endif /* _KERNEL */
#endif /* !_SYS_UCRED_H_ */
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