Contributors: 14
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Theodore Y. Ts'o |
197 |
34.44% |
1 |
3.45% |
| Christoph Hellwig |
185 |
32.34% |
5 |
17.24% |
| Al Viro |
108 |
18.88% |
11 |
37.93% |
| Jan Kara |
17 |
2.97% |
1 |
3.45% |
| Eric W. Biedermann |
14 |
2.45% |
2 |
6.90% |
| Chuck Lever |
11 |
1.92% |
1 |
3.45% |
| Nicholas Piggin |
9 |
1.57% |
1 |
3.45% |
| Steven Whitehouse |
8 |
1.40% |
1 |
3.45% |
| Elena Reshetova |
6 |
1.05% |
1 |
3.45% |
| Markus Trippelsdorf |
5 |
0.87% |
1 |
3.45% |
| Andrew Morton |
5 |
0.87% |
1 |
3.45% |
| Paul Gortmaker |
3 |
0.52% |
1 |
3.45% |
| Andreas Gruenbacher |
3 |
0.52% |
1 |
3.45% |
| Greg Kroah-Hartman |
1 |
0.17% |
1 |
3.45% |
| Total |
572 |
|
29 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
File: linux/posix_acl.h
(C) 2002 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#ifndef __LINUX_POSIX_ACL_H
#define __LINUX_POSIX_ACL_H
#include <linux/bug.h>
#include <linux/slab.h>
#include <linux/rcupdate.h>
#include <linux/refcount.h>
#include <uapi/linux/posix_acl.h>
struct posix_acl_entry {
short e_tag;
unsigned short e_perm;
union {
kuid_t e_uid;
kgid_t e_gid;
};
};
struct posix_acl {
refcount_t a_refcount;
struct rcu_head a_rcu;
unsigned int a_count;
struct posix_acl_entry a_entries[0];
};
#define FOREACH_ACL_ENTRY(pa, acl, pe) \
for(pa=(acl)->a_entries, pe=pa+(acl)->a_count; pa<pe; pa++)
/*
* Duplicate an ACL handle.
*/
static inline struct posix_acl *
posix_acl_dup(struct posix_acl *acl)
{
if (acl)
refcount_inc(&acl->a_refcount);
return acl;
}
/*
* Free an ACL handle.
*/
static inline void
posix_acl_release(struct posix_acl *acl)
{
if (acl && refcount_dec_and_test(&acl->a_refcount))
kfree_rcu(acl, a_rcu);
}
/* posix_acl.c */
extern void posix_acl_init(struct posix_acl *, int);
extern struct posix_acl *posix_acl_alloc(int, gfp_t);
extern int posix_acl_valid(struct user_namespace *, const struct posix_acl *);
extern int posix_acl_permission(struct inode *, const struct posix_acl *, int);
extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t);
extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *);
extern int __posix_acl_create(struct posix_acl **, gfp_t, umode_t *);
extern int __posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
extern struct posix_acl *get_posix_acl(struct inode *, int);
extern int set_posix_acl(struct inode *, int, struct posix_acl *);
#ifdef CONFIG_FS_POSIX_ACL
extern int posix_acl_chmod(struct inode *, umode_t);
extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **,
struct posix_acl **);
extern int posix_acl_update_mode(struct inode *, umode_t *, struct posix_acl **);
extern int simple_set_acl(struct inode *, struct posix_acl *, int);
extern int simple_acl_create(struct inode *, struct inode *);
struct posix_acl *get_cached_acl(struct inode *inode, int type);
struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type);
void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl);
void forget_cached_acl(struct inode *inode, int type);
void forget_all_cached_acls(struct inode *inode);
static inline void cache_no_acl(struct inode *inode)
{
inode->i_acl = NULL;
inode->i_default_acl = NULL;
}
#else
static inline int posix_acl_chmod(struct inode *inode, umode_t mode)
{
return 0;
}
#define simple_set_acl NULL
static inline int simple_acl_create(struct inode *dir, struct inode *inode)
{
return 0;
}
static inline void cache_no_acl(struct inode *inode)
{
}
static inline int posix_acl_create(struct inode *inode, umode_t *mode,
struct posix_acl **default_acl, struct posix_acl **acl)
{
*default_acl = *acl = NULL;
return 0;
}
static inline void forget_all_cached_acls(struct inode *inode)
{
}
#endif /* CONFIG_FS_POSIX_ACL */
struct posix_acl *get_acl(struct inode *inode, int type);
#endif /* __LINUX_POSIX_ACL_H */