projects / linux-2.6-block.git / blame
| 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 | }; |