Contributors: 34
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Christian Brauner |
203 |
22.68% |
15 |
24.19% |
| James Morris |
121 |
13.52% |
1 |
1.61% |
| Andreas Gruenbacher |
120 |
13.41% |
7 |
11.29% |
| Aristeu Sergio Rozanski Filho |
84 |
9.39% |
1 |
1.61% |
| Christoph Hellwig |
83 |
9.27% |
2 |
3.23% |
| Linus Torvalds |
38 |
4.25% |
1 |
1.61% |
| Mimi Zohar |
38 |
4.25% |
2 |
3.23% |
| van der Linden, Frank |
34 |
3.80% |
2 |
3.23% |
| Tycho Andersen |
29 |
3.24% |
1 |
1.61% |
| Hugh Dickins |
28 |
3.13% |
2 |
3.23% |
| Al Viro |
15 |
1.68% |
3 |
4.84% |
| Bill Nottingham |
13 |
1.45% |
1 |
1.61% |
| David P. Quigley |
10 |
1.12% |
1 |
1.61% |
| David Howells |
10 |
1.12% |
2 |
3.23% |
| Christian Göttsche |
10 |
1.12% |
1 |
1.61% |
| Adrian Bunk |
9 |
1.01% |
1 |
1.61% |
| Miklos Szeredi |
8 |
0.89% |
1 |
1.61% |
| Eric Paris |
7 |
0.78% |
1 |
1.61% |
| Thorsten Blum |
5 |
0.56% |
1 |
1.61% |
| Linus Torvalds (pre-git) |
4 |
0.45% |
1 |
1.61% |
| Serge E. Hallyn |
3 |
0.34% |
1 |
1.61% |
| Aneesh Kumar K.V |
3 |
0.34% |
1 |
1.61% |
| Tao Ma |
3 |
0.34% |
2 |
3.23% |
| Matt Mackall |
2 |
0.22% |
1 |
1.61% |
| Tiger Yang |
2 |
0.22% |
1 |
1.61% |
| Brian Gerst |
2 |
0.22% |
1 |
1.61% |
| Jeff Layton |
2 |
0.22% |
1 |
1.61% |
| Andrew Morton |
2 |
0.22% |
1 |
1.61% |
| Tetsuo Handa |
2 |
0.22% |
1 |
1.61% |
| Paul Moore |
1 |
0.11% |
1 |
1.61% |
| Greg Kroah-Hartman |
1 |
0.11% |
1 |
1.61% |
| Gustavo A. R. Silva |
1 |
0.11% |
1 |
1.61% |
| Stephen Hemminger |
1 |
0.11% |
1 |
1.61% |
| Sergei Trofimovich |
1 |
0.11% |
1 |
1.61% |
| Total |
895 |
|
62 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
File: linux/xattr.h
Extended attributes handling.
Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
*/
#ifndef _LINUX_XATTR_H
#define _LINUX_XATTR_H
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/rhashtable-types.h>
#include <linux/user_namespace.h>
#include <uapi/linux/xattr.h>
/* List of all open_how "versions". */
#define XATTR_ARGS_SIZE_VER0 16 /* sizeof first published struct */
#define XATTR_ARGS_SIZE_LATEST XATTR_ARGS_SIZE_VER0
struct inode;
struct dentry;
static inline bool is_posix_acl_xattr(const char *name)
{
return (strcmp(name, XATTR_NAME_POSIX_ACL_ACCESS) == 0) ||
(strcmp(name, XATTR_NAME_POSIX_ACL_DEFAULT) == 0);
}
/*
* struct xattr_handler: When @name is set, match attributes with exactly that
* name. When @prefix is set instead, match attributes with that prefix and
* with a non-empty suffix.
*/
struct xattr_handler {
const char *name;
const char *prefix;
int flags; /* fs private flags */
bool (*list)(struct dentry *dentry);
int (*get)(const struct xattr_handler *, struct dentry *dentry,
struct inode *inode, const char *name, void *buffer,
size_t size);
int (*set)(const struct xattr_handler *,
struct mnt_idmap *idmap, struct dentry *dentry,
struct inode *inode, const char *name, const void *buffer,
size_t size, int flags);
};
/**
* xattr_handler_can_list - check whether xattr can be listed
* @handler: handler for this type of xattr
* @dentry: dentry whose inode xattr to list
*
* Determine whether the xattr associated with @dentry can be listed given
* @handler.
*
* Return: true if xattr can be listed, false if not.
*/
static inline bool xattr_handler_can_list(const struct xattr_handler *handler,
struct dentry *dentry)
{
return handler && (!handler->list || handler->list(dentry));
}
const char *xattr_full_name(const struct xattr_handler *, const char *);
struct xattr {
const char *name;
void *value;
size_t value_len;
};
ssize_t __vfs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t);
ssize_t vfs_getxattr(struct mnt_idmap *, struct dentry *, const char *,
void *, size_t);
ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
int __vfs_setxattr(struct mnt_idmap *, struct dentry *, struct inode *,
const char *, const void *, size_t, int);
int __vfs_setxattr_noperm(struct mnt_idmap *, struct dentry *,
const char *, const void *, size_t, int);
int __vfs_setxattr_locked(struct mnt_idmap *, struct dentry *,
const char *, const void *, size_t, int,
struct delegated_inode *);
int vfs_setxattr(struct mnt_idmap *, struct dentry *, const char *,
const void *, size_t, int);
int __vfs_removexattr(struct mnt_idmap *, struct dentry *, const char *);
int __vfs_removexattr_locked(struct mnt_idmap *, struct dentry *,
const char *, struct delegated_inode *);
int vfs_removexattr(struct mnt_idmap *, struct dentry *, const char *);
ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
int vfs_getxattr_alloc(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name,
char **xattr_value, size_t size, gfp_t flags);
int xattr_supports_user_prefix(struct inode *inode);
static inline const char *xattr_prefix(const struct xattr_handler *handler)
{
return handler->prefix ?: handler->name;
}
struct simple_xattrs {
struct rhashtable ht;
};
struct simple_xattr {
struct rhash_head hash_node;
struct rcu_head rcu;
char *name;
size_t size;
char value[] __counted_by(size);
};
#define SIMPLE_XATTR_MAX_NR 128
#define SIMPLE_XATTR_MAX_SIZE (128 << 10)
struct simple_xattr_limits {
atomic_t nr_xattrs; /* current user.* xattr count */
atomic_t xattr_size; /* current total user.* value bytes */
};
static inline void simple_xattr_limits_init(struct simple_xattr_limits *limits)
{
atomic_set(&limits->nr_xattrs, 0);
atomic_set(&limits->xattr_size, 0);
}
int simple_xattrs_init(struct simple_xattrs *xattrs);
struct simple_xattrs *simple_xattrs_alloc(void);
struct simple_xattrs *simple_xattrs_lazy_alloc(struct simple_xattrs **xattrsp,
const void *value, int flags);
void simple_xattrs_free(struct simple_xattrs *xattrs, size_t *freed_space);
size_t simple_xattr_space(const char *name, size_t size);
struct simple_xattr *simple_xattr_alloc(const void *value, size_t size);
void simple_xattr_free(struct simple_xattr *xattr);
void simple_xattr_free_rcu(struct simple_xattr *xattr);
int simple_xattr_get(struct simple_xattrs *xattrs, const char *name,
void *buffer, size_t size);
struct simple_xattr *simple_xattr_set(struct simple_xattrs *xattrs,
const char *name, const void *value,
size_t size, int flags);
int simple_xattr_set_limited(struct simple_xattrs *xattrs,
struct simple_xattr_limits *limits,
const char *name, const void *value,
size_t size, int flags);
ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs,
char *buffer, size_t size);
int simple_xattr_add(struct simple_xattrs *xattrs,
struct simple_xattr *new_xattr);
int xattr_list_one(char **buffer, ssize_t *remaining_size, const char *name);
DEFINE_CLASS(simple_xattr,
struct simple_xattr *,
if (!IS_ERR_OR_NULL(_T)) simple_xattr_free(_T),
simple_xattr_alloc(value, size),
const void *value, size_t size)
DEFINE_CLASS(simple_xattrs,
struct simple_xattrs *,
if (!IS_ERR_OR_NULL(_T)) { simple_xattrs_free(_T, NULL); kfree(_T); },
simple_xattrs_alloc(),
void)
#endif /* _LINUX_XATTR_H */