--- /dev/null
+/*
+ * btree.h
+ *
+ */
+
+
+int befs_btree_find(struct super_block *sb, befs_data_stream * ds,
+ const char *key, befs_off_t * value);
+
+int befs_btree_read(struct super_block *sb, befs_data_stream * ds,
+ loff_t key_no, size_t bufsize, char *keybuf,
+ size_t * keysize, befs_off_t * value);
+