2
* Copyright (c) 1989, 1993
3
* The Regents of the University of California. All rights reserved.
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
8
* 1. Redistributions of source code must retain the above copyright
9
* notice, this list of conditions and the following disclaimer.
10
* 2. Redistributions in binary form must reproduce the above copyright
11
* notice, this list of conditions and the following disclaimer in the
12
* documentation and/or other materials provided with the distribution.
13
* 4. Neither the name of the University nor the names of its contributors
14
* may be used to endorse or promote products derived from this software
15
* without specific prior written permission.
17
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29
* @(#)ucred.h 8.4 (Berkeley) 1/9/95
37
#include <bsm/audit.h>
43
* Please do not inspect cr_uid directly to determine superuserness. The
44
* priv(9) interface should be used to check for privilege.
46
#if defined(_KERNEL) || defined(_WANT_UCRED)
48
u_int cr_ref; /* reference count */
49
#define cr_startcopy cr_uid
50
uid_t cr_uid; /* effective user id */
51
uid_t cr_ruid; /* real user id */
52
uid_t cr_svuid; /* saved user id */
53
int cr_ngroups; /* number of groups */
54
gid_t cr_rgid; /* real group id */
55
gid_t cr_svgid; /* saved group id */
56
struct uidinfo *cr_uidinfo; /* per euid resource consumption */
57
struct uidinfo *cr_ruidinfo; /* per ruid resource consumption */
58
struct prison *cr_prison; /* jail(2) */
59
void *cr_pspare; /* general use */
60
u_int cr_flags; /* credential flags */
61
void *cr_pspare2[2]; /* general use 2 */
62
#define cr_endcopy cr_label
63
struct label *cr_label; /* MAC label */
64
struct auditinfo_addr cr_audit; /* Audit properties. */
65
gid_t *cr_groups; /* groups */
66
int cr_agroups; /* Available groups */
68
#define NOCRED ((struct ucred *)0) /* no credential available */
69
#define FSCRED ((struct ucred *)-1) /* filesystem credential */
70
#endif /* _KERNEL || _WANT_UCRED */
75
* This is the external representation of struct ucred.
78
u_int cr_version; /* structure layout version */
79
uid_t cr_uid; /* effective user id */
80
short cr_ngroups; /* number of groups */
81
gid_t cr_groups[XU_NGROUPS]; /* groups */
82
void *_cr_unused1; /* compatibility with old ucred */
84
#define XUCRED_VERSION 0
86
/* This can be used for both ucred and xucred structures. */
87
#define cr_gid cr_groups[0]
93
void change_egid(struct ucred *newcred, gid_t egid);
94
void change_euid(struct ucred *newcred, struct uidinfo *euip);
95
void change_rgid(struct ucred *newcred, gid_t rgid);
96
void change_ruid(struct ucred *newcred, struct uidinfo *ruip);
97
void change_svgid(struct ucred *newcred, gid_t svgid);
98
void change_svuid(struct ucred *newcred, uid_t svuid);
99
void crcopy(struct ucred *dest, struct ucred *src);
100
struct ucred *crcopysafe(struct proc *p, struct ucred *cr);
101
struct ucred *crdup(struct ucred *cr);
102
void cred_update_thread(struct thread *td);
103
void crfree(struct ucred *cr);
104
struct ucred *crget(void);
105
struct ucred *crhold(struct ucred *cr);
106
int crshared(struct ucred *cr);
107
void cru2x(struct ucred *cr, struct xucred *xcr);
108
void crsetgroups(struct ucred *cr, int n, gid_t *groups);
109
int groupmember(gid_t gid, struct ucred *cred);
112
#endif /* !_SYS_UCRED_H_ */