6 * Export hfs data via xattr
11 #include <linux/xattr.h>
21 static int __hfs_setxattr(struct inode *inode, enum hfs_xattr_type type,
22 const void *value, size_t size, int flags)
24 struct hfs_find_data fd;
26 struct hfs_cat_file *file;
29 if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
32 res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
35 fd.search_key->cat = HFS_I(inode)->cat_key;
36 res = hfs_brec_find(&fd);
39 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
40 sizeof(struct hfs_cat_file));
46 memcpy(&file->UsrWds.fdType, value, 4);
53 memcpy(&file->UsrWds.fdCreator, value, 4);
60 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
61 sizeof(struct hfs_cat_file));
67 static ssize_t __hfs_getxattr(struct inode *inode, enum hfs_xattr_type type,
68 void *value, size_t size)
70 struct hfs_find_data fd;
72 struct hfs_cat_file *file;
75 if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
79 res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
82 fd.search_key->cat = HFS_I(inode)->cat_key;
83 res = hfs_brec_find(&fd);
86 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
87 sizeof(struct hfs_cat_file));
94 memcpy(value, &file->UsrWds.fdType, 4);
97 res = size ? -ERANGE : 4;
102 memcpy(value, &file->UsrWds.fdCreator, 4);
105 res = size ? -ERANGE : 4;
115 static int hfs_xattr_get(const struct xattr_handler *handler,
116 struct dentry *unused, struct inode *inode,
117 const char *name, void *value, size_t size)
119 return __hfs_getxattr(inode, handler->flags, value, size);
122 static int hfs_xattr_set(const struct xattr_handler *handler,
123 struct dentry *unused, struct inode *inode,
124 const char *name, const void *value, size_t size,
130 return __hfs_setxattr(inode, handler->flags, value, size, flags);
133 static const struct xattr_handler hfs_creator_handler = {
134 .name = "hfs.creator",
135 .flags = HFS_CREATOR,
136 .get = hfs_xattr_get,
137 .set = hfs_xattr_set,
140 static const struct xattr_handler hfs_type_handler = {
143 .get = hfs_xattr_get,
144 .set = hfs_xattr_set,
147 const struct xattr_handler *hfs_xattr_handlers[] = {
148 &hfs_creator_handler,