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-NetLabel Introduction
-==============================================================================
-Paul Moore, paul.moore@hp.com
-
-August 2, 2006
-
- * Overview
-
-NetLabel is a mechanism which can be used by kernel security modules to attach
-security attributes to outgoing network packets generated from user space
-applications and read security attributes from incoming network packets. It
-is composed of three main components, the protocol engines, the communication
-layer, and the kernel security module API.
-
- * Protocol Engines
-
-The protocol engines are responsible for both applying and retrieving the
-network packet's security attributes. If any translation between the network
-security attributes and those on the host are required then the protocol
-engine will handle those tasks as well. Other kernel subsystems should
-refrain from calling the protocol engines directly, instead they should use
-the NetLabel kernel security module API described below.
-
-Detailed information about each NetLabel protocol engine can be found in this
-directory, consult '00-INDEX' for filenames.
-
- * Communication Layer
-
-The communication layer exists to allow NetLabel configuration and monitoring
-from user space. The NetLabel communication layer uses a message based
-protocol built on top of the Generic NETLINK transport mechanism. The exact
-formatting of these NetLabel messages as well as the Generic NETLINK family
-names can be found in the 'net/netlabel/' directory as comments in the
-header files as well as in 'include/net/netlabel.h'.
-
- * Security Module API
-
-The purpose of the NetLabel security module API is to provide a protocol
-independent interface to the underlying NetLabel protocol engines. In addition
-to protocol independence, the security module API is designed to be completely
-LSM independent which should allow multiple LSMs to leverage the same code
-base.
-
-Detailed information about the NetLabel security module API can be found in the
-'include/net/netlabel.h' header file as well as the 'lsm_interface.txt' file
-found in this directory.