1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Virtio 9p
*
* Copyright IBM, Corp. 2010
*
* Authors:
* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#ifndef _QEMU_VIRTIO_9P_XATTR_H
#define _QEMU_VIRTIO_9P_XATTR_H
#include <attr/xattr.h>
typedef struct xattr_operations
{
const char *name;
ssize_t (*getxattr)(FsContext *ctx, const char *path,
const char *name, void *value, size_t size);
ssize_t (*listxattr)(FsContext *ctx, const char *path,
char *name, void *value, size_t size);
int (*setxattr)(FsContext *ctx, const char *path, const char *name,
void *value, size_t size, int flags);
int (*removexattr)(FsContext *ctx,
const char *path, const char *name);
} XattrOperations;
extern XattrOperations mapped_user_xattr;
extern XattrOperations passthrough_user_xattr;
extern XattrOperations mapped_pacl_xattr;
extern XattrOperations mapped_dacl_xattr;
extern XattrOperations passthrough_acl_xattr;
extern XattrOperations none_acl_xattr;
extern XattrOperations *mapped_xattr_ops[];
extern XattrOperations *passthrough_xattr_ops[];
extern XattrOperations *none_xattr_ops[];
ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, const char *name,
void *value, size_t size);
ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, void *value,
size_t vsize);
int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name,
void *value, size_t size, int flags);
int v9fs_remove_xattr(FsContext *ctx, const char *path, const char *name);
ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value,
size_t size);
static inline ssize_t pt_getxattr(FsContext *ctx, const char *path,
const char *name, void *value, size_t size)
{
char buffer[PATH_MAX];
return lgetxattr(rpath(ctx, path, buffer), name, value, size);
}
static inline int pt_setxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size, int flags)
{
char buffer[PATH_MAX];
return lsetxattr(rpath(ctx, path, buffer), name, value, size, flags);
}
static inline int pt_removexattr(FsContext *ctx,
const char *path, const char *name)
{
char buffer[PATH_MAX];
return lremovexattr(rpath(ctx, path, buffer), name);
}
static inline ssize_t notsup_getxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size)
{
errno = ENOTSUP;
return -1;
}
static inline int notsup_setxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size, int flags)
{
errno = ENOTSUP;
return -1;
}
static inline ssize_t notsup_listxattr(FsContext *ctx, const char *path,
char *name, void *value, size_t size)
{
return 0;
}
static inline int notsup_removexattr(FsContext *ctx,
const char *path, const char *name)
{
errno = ENOTSUP;
return -1;
}
#endif
|
