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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2014, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #ifndef __LIBCFS_LINUX_MISC_H__
34 #define __LIBCFS_LINUX_MISC_H__
36 #ifdef HAVE_SYSCTL_CTLNAME
37 #define INIT_CTL_NAME .ctl_name = CTL_UNNUMBERED,
38 #define INIT_STRATEGY .strategy = &sysctl_intvec,
44 #ifndef HAVE_UIDGID_HEADER
46 #ifndef _LINUX_UIDGID_H
47 #define _LINUX_UIDGID_H
52 #define INVALID_UID -1
53 #define INVALID_GID -1
55 #define GLOBAL_ROOT_UID 0
56 #define GLOBAL_ROOT_GID 0
58 static inline uid_t __kuid_val(kuid_t uid)
63 static inline gid_t __kgid_val(kgid_t gid)
68 static inline kuid_t make_kuid(struct user_namespace *from, uid_t uid)
73 static inline kgid_t make_kgid(struct user_namespace *from, gid_t gid)
78 static inline uid_t from_kuid(struct user_namespace *to, kuid_t uid)
83 static inline gid_t from_kgid(struct user_namespace *to, kgid_t gid)
88 static inline bool uid_eq(kuid_t left, kuid_t right)
93 static inline bool uid_valid(kuid_t uid)
95 return uid != (typeof(uid))INVALID_UID;
98 static inline bool gid_valid(kgid_t gid)
100 return gid != (typeof(gid))INVALID_GID;
102 #endif /* _LINUX_UIDGID_H */
106 int cfs_get_environ(const char *key, char *value, int *val_len);
108 #ifndef HAVE_KSTRTOUL
109 static inline int kstrtoul(const char *s, unsigned int base, unsigned long *res)
111 char *end = (char *)s;
113 *res = simple_strtoul(s, &end, base);
118 #endif /* !HAVE_KSTRTOUL */