Communicating between the kernel and user-space in Linux using Netlink sockets

Authors:
Pablo Neira-Ayuso;Rafael M. Gasca;Laurent Lefevre
Affiliations:
QUIVIR Research Group, Departament of Computer Languages and Systems, University of Seville, Spain;QUIVIR Research Group, Departament of Computer Languages and Systems, University of Seville, Spain;RESO-LIP Team, INRIA, University of Lyon, France
Venue:
Software—Practice & Experience
Year:
2010

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Abstract

When developing Linux kernel features, it is a good practice to expose the necessary details to user-space to enable extensibility. This allows the development of new features and sophisticated configurations from user-space. Generally, software developers have to face the task of looking for a good way to communicate between the kernel and user-space in Linux. This tutorial introduces you to Netlink sockets, a flexible and extensible messaging system that provides communication between kernel and user-space. We provide the fundamental guidelines for practitioners who wish to develop Netlink-based interfaces. Copyright © 2010 John Wiley & Sons, Ltd.