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.
10 * The SPL is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
15 * The SPL is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * You should have received a copy of the GNU General Public License along
21 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
27 #include <linux/module.h>
28 #include <linux/cred.h>
29 #include <sys/types.h>
32 typedef struct cred cred_t;
34 #define kcred ((cred_t *)(init_task.cred))
35 #define CRED() ((cred_t *)current_cred())
37 /* Linux 4.9 API change, GROUP_AT was removed */
39 #define GROUP_AT(gi, i) ((gi)->gid[i])
42 #define KUID_TO_SUID(x) (__kuid_val(x))
43 #define KGID_TO_SGID(x) (__kgid_val(x))
44 #define SUID_TO_KUID(x) (KUIDT_INIT(x))
45 #define SGID_TO_KGID(x) (KGIDT_INIT(x))
46 #define KGIDP_TO_SGIDP(x) (&(x)->val)
48 static inline uid_t zfs_uid_into_mnt(struct user_namespace *mnt_ns, uid_t uid)
51 return (__kuid_val(make_kuid(mnt_ns, uid)));
55 static inline gid_t zfs_gid_into_mnt(struct user_namespace *mnt_ns, gid_t gid)
58 return (__kgid_val(make_kgid(mnt_ns, gid)));
62 static inline uid_t zfs_uid_from_mnt(struct user_namespace *mnt_ns, uid_t uid)
65 return (from_kuid(mnt_ns, KUIDT_INIT(uid)));
69 static inline gid_t zfs_gid_from_mnt(struct user_namespace *mnt_ns, gid_t gid)
72 return (from_kgid(mnt_ns, KGIDT_INIT(gid)));
76 extern void crhold(cred_t *cr);
77 extern void crfree(cred_t *cr);
78 extern uid_t crgetuid(const cred_t *cr);
79 extern uid_t crgetruid(const cred_t *cr);
80 extern gid_t crgetgid(const cred_t *cr);
81 extern int crgetngroups(const cred_t *cr);
82 extern gid_t *crgetgroups(const cred_t *cr);
83 extern int groupmember(gid_t gid, const cred_t *cr);
85 #endif /* _SPL_CRED_H */