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47 lines
2.2 KiB
Plaintext
47 lines
2.2 KiB
Plaintext
EAP peer/server library and example program
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Copyright (c) 2007, Jouni Malinen <j@w1.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation.
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Alternatively, this software may be distributed under the terms of BSD
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license.
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The interfaces of the EAP server/peer implementation are based on RFC
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4137 (EAP State Machines). This RFC is coordinated with the state
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machines defined in IEEE 802.1X-2004. hostapd and wpa_supplicant
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include implementation of the IEEE 802.1X EAPOL state machines and the
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interface between them and EAP. However, the EAP implementation can be
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used with other protocols, too, by providing a compatible interface
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which maps the EAPOL<->EAP variables to another protocol.
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This directory contains an example showing how EAP peer and server
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code from wpa_supplicant and hostapd can be used as a library. The
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example program initializes both an EAP server and an EAP peer
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entities and then runs through an EAP-PEAP/MSCHAPv2 authentication.
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eap_example_peer.c shows the initialization and glue code needed to
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control the EAP peer implementation. eap_example_server.c does the
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same for EAP server. eap_example.c is an example that ties in both the
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EAP server and client parts to allow an EAP authentication to be
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shown.
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In this example, the EAP messages are passed between the server and
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the peer are passed by direct function calls within the same process.
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In practice, server and peer functionalities would likely reside in
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separate devices and the EAP messages would be transmitted between the
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devices based on an external protocol. For example, in IEEE 802.11
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uses IEEE 802.1X EAPOL state machines to control the transmission of
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EAP messages and WiMax supports optional PMK EAP authentication
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mechanism that transmits EAP messages as defined in IEEE 802.16e.
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The EAP library links in number of helper functions from src/utils and
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src/crypto directories. Most of these are suitable as-is, but it may
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be desirable to replace the debug output code in src/utils/wpa_debug.c
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by dropping this file from the library and re-implementing the
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functions there in a way that better fits in with the main
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application.
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