Release 4.16 include/linux/posix_acl.h
/* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Theodore Y. Ts'o | 28 | 96.55% | 1 | 50.00% |
| Elena Reshetova | 1 | 3.45% | 1 | 50.00% |
| Total | 29 | 100.00% | 2 | 100.00% |
/*
* 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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Theodore Y. Ts'o | 27 | 87.10% | 1 | 33.33% |
| Al Viro | 3 | 9.68% | 1 | 33.33% |
| Elena Reshetova | 1 | 3.23% | 1 | 33.33% |
| Total | 31 | 100.00% | 3 | 100.00% |
/* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Al Viro | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
#else
static inline int posix_acl_chmod(struct inode *inode, umode_t mode)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Christoph Hellwig | 18 | 100.00% | 2 | 100.00% |
| Total | 18 | 100.00% | 2 | 100.00% |
#define simple_set_acl NULL
static inline int simple_acl_create(struct inode *dir, struct inode *inode)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Christoph Hellwig | 20 | 100.00% | 1 | 100.00% |
| Total | 20 | 100.00% | 1 | 100.00% |
static inline void cache_no_acl(struct inode *inode)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Christoph Hellwig | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Christoph Hellwig | 39 | 100.00% | 1 | 100.00% |
| Total | 39 | 100.00% | 1 | 100.00% |
static inline void forget_all_cached_acls(struct inode *inode)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Christoph Hellwig | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
#endif /* CONFIG_FS_POSIX_ACL */
struct posix_acl *get_acl(struct inode *inode, int type);
#endif /* __LINUX_POSIX_ACL_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| 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% |
| Andrew Morton | 5 | 0.87% | 1 | 3.45% |
| Markus Trippelsdorf | 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 | 100.00% | 29 | 100.00% |
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