xattr.c (017f8da43e92ddd9989884720b694a512e09ccce) xattr.c (bf29e886b242cebf6a96ca0e43873abc777e0b50)
1/*
2 * linux/fs/hfsplus/xattr.c
3 *
4 * Vyacheslav Dubeyko <slava@dubeyko.com>
5 *
6 * Logic of processing extended attributes
7 */
8

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801end_removexattr:
802 hfs_find_exit(&cat_fd);
803 return err;
804}
805
806static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
807 void *buffer, size_t size, int type)
808{
1/*
2 * linux/fs/hfsplus/xattr.c
3 *
4 * Vyacheslav Dubeyko <slava@dubeyko.com>
5 *
6 * Logic of processing extended attributes
7 */
8

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801end_removexattr:
802 hfs_find_exit(&cat_fd);
803 return err;
804}
805
806static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
807 void *buffer, size_t size, int type)
808{
809 char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
810 XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
811 size_t len = strlen(name);
809 char *xattr_name;
810 int res;
812
813 if (!strcmp(name, ""))
814 return -EINVAL;
815
811
812 if (!strcmp(name, ""))
813 return -EINVAL;
814
816 if (len > HFSPLUS_ATTR_MAX_STRLEN)
817 return -EOPNOTSUPP;
818
819 /*
820 * Don't allow retrieving properly prefixed attributes
821 * by prepending them with "osx."
822 */
823 if (is_known_namespace(name))
824 return -EOPNOTSUPP;
815 /*
816 * Don't allow retrieving properly prefixed attributes
817 * by prepending them with "osx."
818 */
819 if (is_known_namespace(name))
820 return -EOPNOTSUPP;
821 xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
822 + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
823 if (!xattr_name)
824 return -ENOMEM;
825 strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
826 strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
825
827
826 return hfsplus_getxattr(dentry, xattr_name, buffer, size);
828 res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
829 kfree(xattr_name);
830 return res;
827}
828
829static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
830 const void *buffer, size_t size, int flags, int type)
831{
831}
832
833static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
834 const void *buffer, size_t size, int flags, int type)
835{
832 char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
833 XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
834 size_t len = strlen(name);
836 char *xattr_name;
837 int res;
835
836 if (!strcmp(name, ""))
837 return -EINVAL;
838
838
839 if (!strcmp(name, ""))
840 return -EINVAL;
841
839 if (len > HFSPLUS_ATTR_MAX_STRLEN)
840 return -EOPNOTSUPP;
841
842 /*
843 * Don't allow setting properly prefixed attributes
844 * by prepending them with "osx."
845 */
846 if (is_known_namespace(name))
847 return -EOPNOTSUPP;
842 /*
843 * Don't allow setting properly prefixed attributes
844 * by prepending them with "osx."
845 */
846 if (is_known_namespace(name))
847 return -EOPNOTSUPP;
848 xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
849 + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
850 if (!xattr_name)
851 return -ENOMEM;
852 strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
853 strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
848
854
849 return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
855 res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
856 kfree(xattr_name);
857 return res;
850}
851
852static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
853 size_t list_size, const char *name, size_t name_len, int type)
854{
855 /*
856 * This method is not used.
857 * It is used hfsplus_listxattr() instead of generic_listxattr().
858 */
859 return -EOPNOTSUPP;
860}
861
862const struct xattr_handler hfsplus_xattr_osx_handler = {
863 .prefix = XATTR_MAC_OSX_PREFIX,
864 .list = hfsplus_osx_listxattr,
865 .get = hfsplus_osx_getxattr,
866 .set = hfsplus_osx_setxattr,
867};
858}
859
860static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
861 size_t list_size, const char *name, size_t name_len, int type)
862{
863 /*
864 * This method is not used.
865 * It is used hfsplus_listxattr() instead of generic_listxattr().
866 */
867 return -EOPNOTSUPP;
868}
869
870const struct xattr_handler hfsplus_xattr_osx_handler = {
871 .prefix = XATTR_MAC_OSX_PREFIX,
872 .list = hfsplus_osx_listxattr,
873 .get = hfsplus_osx_getxattr,
874 .set = hfsplus_osx_setxattr,
875};