Commit | Line | Data |
---|---|---|
127e5f5a VD |
1 | /* |
2 | * linux/fs/hfsplus/xattr_trusted.c | |
3 | * | |
4 | * Vyacheslav Dubeyko <slava@dubeyko.com> | |
5 | * | |
6 | * Handler for trusted extended attributes. | |
7 | */ | |
8 | ||
9 | #include "hfsplus_fs.h" | |
10 | #include "xattr.h" | |
11 | ||
12 | static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name, | |
13 | void *buffer, size_t size, int type) | |
14 | { | |
15 | char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0}; | |
16 | size_t len = strlen(name); | |
17 | ||
18 | if (!strcmp(name, "")) | |
19 | return -EINVAL; | |
20 | ||
21 | if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN) | |
22 | return -EOPNOTSUPP; | |
23 | ||
24 | strcpy(xattr_name, XATTR_TRUSTED_PREFIX); | |
25 | strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name); | |
26 | ||
27 | return hfsplus_getxattr(dentry, xattr_name, buffer, size); | |
28 | } | |
29 | ||
30 | static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name, | |
31 | const void *buffer, size_t size, int flags, int type) | |
32 | { | |
33 | char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0}; | |
34 | size_t len = strlen(name); | |
35 | ||
36 | if (!strcmp(name, "")) | |
37 | return -EINVAL; | |
38 | ||
39 | if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN) | |
40 | return -EOPNOTSUPP; | |
41 | ||
42 | strcpy(xattr_name, XATTR_TRUSTED_PREFIX); | |
43 | strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name); | |
44 | ||
45 | return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); | |
46 | } | |
47 | ||
48 | static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list, | |
49 | size_t list_size, const char *name, size_t name_len, int type) | |
50 | { | |
51 | /* | |
52 | * This method is not used. | |
53 | * It is used hfsplus_listxattr() instead of generic_listxattr(). | |
54 | */ | |
55 | return -EOPNOTSUPP; | |
56 | } | |
57 | ||
58 | const struct xattr_handler hfsplus_xattr_trusted_handler = { | |
59 | .prefix = XATTR_TRUSTED_PREFIX, | |
60 | .list = hfsplus_trusted_listxattr, | |
61 | .get = hfsplus_trusted_getxattr, | |
62 | .set = hfsplus_trusted_setxattr, | |
63 | }; |