diff --git a/tasks/mm0/include/file.h b/tasks/mm0/include/file.h
new file mode 100644
index 0000000..6af1e97
--- /dev/null
+++ b/tasks/mm0/include/file.h
@@ -0,0 +1,19 @@
+#ifndef __MM0_FILE_H__
+#define __MM0_FILE_H__
+
+#include <l4/lib/list.h>
+#include <posix/sys/types.h>
+
+void vmfile_init(void);
+struct vm_file *vmfile_alloc_init(void);
+int vfs_receive_sys_open(l4id_t sender, l4id_t opener, int fd,
+			 unsigned long vnum, unsigned long size);
+int vfs_read(unsigned long vnum, unsigned long f_offset, unsigned long npages,
+	     void *pagebuf);
+int vfs_write(unsigned long vnum, unsigned long f_offset, unsigned long npages,
+	     void *pagebuf);
+int sys_read(l4id_t sender, int fd, void *buf, int count);
+int sys_write(l4id_t sender, int fd, void *buf, int count);
+int sys_lseek(l4id_t sender, int fd, off_t offset, int whence);
+
+#endif /* __MM0_FILE_H__ */