Index: uspace/lib/c/include/bd.h
===================================================================
--- uspace/lib/c/include/bd.h	(revision 4802dd7d8d17cb02ec8f79547ffde538bb8c6736)
+++ uspace/lib/c/include/bd.h	(revision 4802dd7d8d17cb02ec8f79547ffde538bb8c6736)
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2012 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_BD_H_
+#define LIBC_BD_H_
+
+#include <async.h>
+#include <sys/types.h>
+
+typedef struct {
+	async_sess_t *sess;
+} bd_t;
+
+extern int bd_open(async_sess_t *, bd_t **);
+extern void bd_close(bd_t *);
+extern int bd_read_blocks(bd_t *, aoff64_t, size_t, void *, size_t);
+extern int bd_read_toc(bd_t *, uint8_t, void *, size_t);
+extern int bd_write_blocks(bd_t *, aoff64_t, size_t, const void *, size_t);
+extern int bd_get_block_size(bd_t *, size_t *);
+extern int bd_get_num_blocks(bd_t *, aoff64_t *);
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/include/bd_srv.h
===================================================================
--- uspace/lib/c/include/bd_srv.h	(revision 4802dd7d8d17cb02ec8f79547ffde538bb8c6736)
+++ uspace/lib/c/include/bd_srv.h	(revision 4802dd7d8d17cb02ec8f79547ffde538bb8c6736)
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2012 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_BD_SRV_H_
+#define LIBC_BD_SRV_H_
+
+#include <async.h>
+#include <fibril_synch.h>
+#include <bool.h>
+#include <sys/types.h>
+
+typedef struct bd_ops bd_ops_t;
+
+typedef struct {
+	fibril_mutex_t lock;
+	bool connected;
+	bd_ops_t *ops;
+	void *arg;
+	async_sess_t *client_sess;
+} bd_srv_t;
+
+typedef struct bd_ops {
+	int (*open)(bd_srv_t *);
+	int (*close)(bd_srv_t *);
+	int (*read_blocks)(bd_srv_t *, aoff64_t, size_t, void *, size_t);
+	int (*read_toc)(bd_srv_t *, uint8_t, void *, size_t);
+	int (*write_blocks)(bd_srv_t *, aoff64_t, size_t, const void *, size_t);
+	int (*get_block_size)(bd_srv_t *, size_t *);
+	int (*get_num_blocks)(bd_srv_t *, aoff64_t *);
+} bd_ops_t;
+
+extern void bd_srv_init(bd_srv_t *);
+
+extern int bd_conn(ipc_callid_t, ipc_call_t *, void *);
+
+#endif
+
+/** @}
+ */