diff --git a/extensions/dbg_interactive/lists.i b/extensions/dbg_interactive/lists.i
new file mode 100644
index 0000000..6ac26f2
--- /dev/null
+++ b/extensions/dbg_interactive/lists.i
@@ -0,0 +1,132 @@
+/*********************************************************************************************************
+* Software License Agreement (BSD License)                                                               *
+* Author: Sebastien Decugis <sdecugis@freediameter.net>							 *
+*													 *
+* Copyright (c) 2013, WIDE Project and NICT								 *
+* All rights reserved.											 *
+* 													 *
+* Redistribution and use of this software 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.								 *
+* 													 *
+* * Neither the name of the WIDE Project or NICT nor the 						 *
+*   names of its contributors may be used to endorse or 						 *
+*   promote products derived from this software without 						 *
+*   specific prior written permission of WIDE Project and 						 *
+*   NICT.												 *
+* 													 *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.								 *
+*********************************************************************************************************/
+
+/* Do not include this directly, use dbg_interactive.i instead */
+
+/****** LISTS *********/
+
+%extend fd_list {
+	/* allow a parameter in the constructor, and perform the fd_list_init operation */
+	fd_list(void * o = NULL) {
+		struct fd_list * li;
+		li = (struct fd_list *) malloc(sizeof(struct fd_list));
+		if (!li) {
+			DI_ERROR_MALLOC;
+			return NULL;
+		}
+		fd_list_init(li, o);
+		return li;
+	}
+	/* Unlink before freeing */
+	~fd_list() {
+		fd_list_unlink($self);
+		free($self);
+	}
+	/* For debug, show the values of the list */
+	void dump() {
+		fd_log_debug("list: %p", $self);
+		fd_log_debug("  - next: %p", $self->next);
+		fd_log_debug("  - prev: %p", $self->prev);
+		fd_log_debug("  - head: %p", $self->head);
+		fd_log_debug("  - o   : %p", $self->o);
+	}
+	/* Insert before/after wrapper */
+	void insert_prev(struct fd_list * li) {
+		fd_list_insert_before($self, li);
+	}
+	void insert_next(struct fd_list * li) {
+		fd_list_insert_after($self, li);
+	}
+	/* Test for emptyness */
+	PyObject * isempty() {
+		PyObject * ret;
+		if (FD_IS_LIST_EMPTY($self))
+			ret = Py_True;
+		else
+			ret = Py_False;
+		Py_XINCREF(ret);
+		return ret;
+	}
+	/* Concatenate two lists */
+	void concat(struct fd_list * li) {
+		fd_list_move_end($self, li);
+	}
+	/* Unlink without freeing */
+	void detach() {
+		fd_list_unlink($self);
+	}
+	
+	/* Return the list as python list of elements */
+	PyObject * enum_as(char * type = NULL, int dont_use_o = 0) {
+		struct fd_list *li;
+		swig_type_info * desttype = NULL;
+		PyObject * rl;
+		
+		if ($self->head != $self) {
+			DI_ERROR(EINVAL, NULL, "This method can only be called on the list sentinel.");
+			return NULL;
+		}
+		
+		if (type) {
+			desttype = SWIG_TypeQuery(type);
+			if (!desttype) {
+				DI_ERROR(EINVAL, NULL, "Unable to resolve this type. Please check the form: 'struct blahbla *'");
+				return NULL;
+			}
+		}
+		if (desttype == NULL) {
+			/* fallback to fd_list */
+			desttype = SWIGTYPE_p_fd_list;
+			/* in this case, don't follow the 'o' link */
+			dont_use_o = 1;
+		}
+		
+		rl = PyList_New(0);
+		SWIG_PYTHON_THREAD_BEGIN_BLOCK;
+		for (li = $self->next; li != $self; li = li->next) {
+			void * obj = NULL;
+			if (dont_use_o || li->o == NULL)
+				obj = li;
+			else
+				obj = li->o;
+			PyList_Append(rl, SWIG_NewPointerObj(obj, desttype, 0 ));
+		}
+		Py_XINCREF(rl);
+		SWIG_PYTHON_THREAD_END_BLOCK;
+		
+		return rl;
+	}
+};
+