4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef __LIBCFS_LINUX_MISC_H__
38 #define __LIBCFS_LINUX_MISC_H__
40 #ifdef HAVE_SYSCTL_CTLNAME
41 #define INIT_CTL_NAME .ctl_name = CTL_UNNUMBERED,
42 #define INIT_STRATEGY .strategy = &sysctl_intvec,
48 #ifndef HAVE_UIDGID_HEADER
50 #ifndef _LINUX_UIDGID_H
51 #define _LINUX_UIDGID_H
56 #define INVALID_UID -1
57 #define INVALID_GID -1
59 #define GLOBAL_ROOT_UID 0
60 #define GLOBAL_ROOT_GID 0
62 static inline uid_t __kuid_val(kuid_t uid)
67 static inline gid_t __kgid_val(kgid_t gid)
72 static inline kuid_t make_kuid(struct user_namespace *from, uid_t uid)
77 static inline kgid_t make_kgid(struct user_namespace *from, gid_t gid)
82 static inline uid_t from_kuid(struct user_namespace *to, kuid_t uid)
87 static inline gid_t from_kgid(struct user_namespace *to, kgid_t gid)
92 static inline bool uid_eq(kuid_t left, kuid_t right)
97 static inline bool uid_valid(kuid_t uid)
99 return uid != (typeof(uid))INVALID_UID;
102 static inline bool gid_valid(kgid_t gid)
104 return gid != (typeof(gid))INVALID_GID;
106 #endif /* _LINUX_UIDGID_H */
110 int cfs_get_environ(const char *key, char *value, int *val_len);
112 #ifndef HAVE_KSTRTOUL
113 static inline int kstrtoul(const char *s, unsigned int base, unsigned long *res)
115 char *end = (char *)s;
117 *res = simple_strtoul(s, &end, base);
122 #endif /* !HAVE_KSTRTOUL */