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1 /*****************************************************************************\
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
8 * This file is part of the SPL, Solaris Porting Layer.
9 * For details, see <http://zfsonlinux.org/>.
11 * The SPL is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
16 * The SPL is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 * You should have received a copy of the GNU General Public License along
22 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
23 \*****************************************************************************/
28 #include <linux/module.h>
29 #include <sys/types.h>
32 #ifdef HAVE_CRED_STRUCT
34 typedef struct cred cred_t
;
36 #define kcred ((cred_t *)(init_task.cred))
37 #define CRED() ((cred_t *)current_cred())
41 typedef struct task_struct cred_t
;
43 #define kcred ((cred_t *)&init_task)
44 #define CRED() ((cred_t *)current)
46 #endif /* HAVE_CRED_STRUCT */
51 * Linux 3.8+ uses typedefs to redefine uid_t and gid_t. We have to rename the
52 * typedefs to recover the original types. We then can use them provided that
53 * we are careful about translating from k{g,u}id_t to the original versions
58 #include <linux/uidgid.h>
62 #define KUID_TO_SUID(x) (__kuid_val(x))
63 #define KGID_TO_SGID(x) (__kgid_val(x))
64 #define SUID_TO_KUID(x) (KUIDT_INIT(x))
65 #define SGID_TO_KGID(x) (KGIDT_INIT(x))
66 #define KGIDP_TO_SGIDP(x) (&(x)->val)
68 #else /* HAVE_KUIDGID_T */
70 #define KUID_TO_SUID(x) (x)
71 #define KGID_TO_SGID(x) (x)
72 #define SUID_TO_KUID(x) (x)
73 #define SGID_TO_KGID(x) (x)
74 #define KGIDP_TO_SGIDP(x) (x)
76 #endif /* HAVE_KUIDGID_T */
78 extern void crhold(cred_t
*cr
);
79 extern void crfree(cred_t
*cr
);
80 extern uid_t
crgetuid(const cred_t
*cr
);
81 extern uid_t
crgetruid(const cred_t
*cr
);
82 extern uid_t
crgetsuid(const cred_t
*cr
);
83 extern uid_t
crgetfsuid(const cred_t
*cr
);
84 extern gid_t
crgetgid(const cred_t
*cr
);
85 extern gid_t
crgetrgid(const cred_t
*cr
);
86 extern gid_t
crgetsgid(const cred_t
*cr
);
87 extern gid_t
crgetfsgid(const cred_t
*cr
);
88 extern int crgetngroups(const cred_t
*cr
);
89 extern gid_t
* crgetgroups(const cred_t
*cr
);
90 extern int groupmember(gid_t gid
, const cred_t
*cr
);
92 #endif /* _SPL_CRED_H */