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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>. | |
6 | * UCRL-CODE-235197 | |
7 | * | |
8 | * This file is part of the SPL, Solaris Porting Layer. | |
3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
716154c5 BB |
10 | * |
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. | |
15 | * | |
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 | |
19 | * for more details. | |
20 | * | |
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 | \*****************************************************************************/ | |
24 | ||
09b414e8 | 25 | #ifndef _SPL_CRED_H |
26 | #define _SPL_CRED_H | |
f1ca4da6 | 27 | |
f1b59d26 | 28 | #include <linux/module.h> |
9490c148 | 29 | #include <sys/types.h> |
2bdb28fb | 30 | #include <sys/vfs.h> |
f1ca4da6 | 31 | |
ec7d53e9 | 32 | #ifdef HAVE_CRED_STRUCT |
f1ca4da6 | 33 | |
ec7d53e9 | 34 | typedef struct cred cred_t; |
3b3ba48f | 35 | |
ec7d53e9 BB |
36 | #define kcred ((cred_t *)(init_task.cred)) |
37 | #define CRED() ((cred_t *)current_cred()) | |
3b3ba48f | 38 | |
ec7d53e9 | 39 | #else |
3b3ba48f | 40 | |
ec7d53e9 | 41 | typedef struct task_struct cred_t; |
3b3ba48f | 42 | |
ec7d53e9 BB |
43 | #define kcred ((cred_t *)&init_task) |
44 | #define CRED() ((cred_t *)current) | |
06dea103 | 45 | |
ec7d53e9 | 46 | #endif /* HAVE_CRED_STRUCT */ |
06dea103 | 47 | |
80093b6f AX |
48 | #ifdef HAVE_KUIDGID_T |
49 | ||
50 | /* | |
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 | |
54 | * and vice versa. | |
55 | */ | |
56 | #define uid_t xuid_t | |
57 | #define gid_t xgid_t | |
58 | #include <linux/uidgid.h> | |
59 | #undef uid_t | |
60 | #undef gid_t | |
61 | ||
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) | |
67 | ||
68 | #else /* HAVE_KUIDGID_T */ | |
69 | ||
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) | |
75 | ||
76 | #endif /* HAVE_KUIDGID_T */ | |
77 | ||
ec7d53e9 BB |
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); | |
734fcac7 | 83 | extern uid_t crgetfsuid(const cred_t *cr); |
ec7d53e9 BB |
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); | |
734fcac7 | 87 | extern gid_t crgetfsgid(const cred_t *cr); |
ec7d53e9 BB |
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); | |
06dea103 | 91 | |
09b414e8 | 92 | #endif /* _SPL_CRED_H */ |