--- /dev/null
+/*
+ * IEEE 802.1X-2004 Authenticator - EAPOL state machine (internal definitions)
+ * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef EAPOL_AUTH_SM_I_H
+#define EAPOL_AUTH_SM_I_H
+
+#include "common/defs.h"
+#include "radius/radius.h"
+
+/* IEEE Std 802.1X-2004, Ch. 8.2 */
+
+typedef enum { ForceUnauthorized = 1, ForceAuthorized = 3, Auto = 2 }
+ PortTypes;
+typedef enum { Unauthorized = 2, Authorized = 1 } PortState;
+typedef enum { Both = 0, In = 1 } ControlledDirection;
+typedef unsigned int Counter;
+
+
+/**
+ * struct eapol_authenticator - Global EAPOL authenticator data
+ */
+struct eapol_authenticator {
+ struct eapol_auth_config conf;
+ struct eapol_auth_cb cb;
+
+ u8 *default_wep_key;
+ u8 default_wep_key_idx;
+};
+
+
+/**
+ * struct eapol_state_machine - Per-Supplicant Authenticator state machines
+ */
+struct eapol_state_machine {
+ /* timers */
+ int aWhile;
+ int quietWhile;
+ int reAuthWhen;
+
+ /* global variables */
+ Boolean authAbort;
+ Boolean authFail;
+ PortState authPortStatus;
+ Boolean authStart;
+ Boolean authTimeout;
+ Boolean authSuccess;
+ Boolean eapolEap;
+ Boolean initialize;
+ Boolean keyDone;
+ Boolean keyRun;
+ Boolean keyTxEnabled;
+ PortTypes portControl;
+ Boolean portValid;
+ Boolean reAuthenticate;
+
+ /* Port Timers state machine */
+ /* 'Boolean tick' implicitly handled as registered timeout */
+
+ /* Authenticator PAE state machine */
+ enum { AUTH_PAE_INITIALIZE, AUTH_PAE_DISCONNECTED, AUTH_PAE_CONNECTING,
+ AUTH_PAE_AUTHENTICATING, AUTH_PAE_AUTHENTICATED,
+ AUTH_PAE_ABORTING, AUTH_PAE_HELD, AUTH_PAE_FORCE_AUTH,
+ AUTH_PAE_FORCE_UNAUTH, AUTH_PAE_RESTART } auth_pae_state;
+ /* variables */
+ Boolean eapolLogoff;
+ Boolean eapolStart;
+ PortTypes portMode;
+ unsigned int reAuthCount;
+ /* constants */
+ unsigned int quietPeriod; /* default 60; 0..65535 */
+#define AUTH_PAE_DEFAULT_quietPeriod 60
+ unsigned int reAuthMax; /* default 2 */
+#define AUTH_PAE_DEFAULT_reAuthMax 2
+ /* counters */
+ Counter authEntersConnecting;
+ Counter authEapLogoffsWhileConnecting;
+ Counter authEntersAuthenticating;
+ Counter authAuthSuccessesWhileAuthenticating;
+ Counter authAuthTimeoutsWhileAuthenticating;
+ Counter authAuthFailWhileAuthenticating;
+ Counter authAuthEapStartsWhileAuthenticating;
+ Counter authAuthEapLogoffWhileAuthenticating;
+ Counter authAuthReauthsWhileAuthenticated;
+ Counter authAuthEapStartsWhileAuthenticated;
+ Counter authAuthEapLogoffWhileAuthenticated;
+
+ /* Backend Authentication state machine */
+ enum { BE_AUTH_REQUEST, BE_AUTH_RESPONSE, BE_AUTH_SUCCESS,
+ BE_AUTH_FAIL, BE_AUTH_TIMEOUT, BE_AUTH_IDLE, BE_AUTH_INITIALIZE,
+ BE_AUTH_IGNORE
+ } be_auth_state;
+ /* constants */
+ unsigned int serverTimeout; /* default 30; 1..X */
+#define BE_AUTH_DEFAULT_serverTimeout 30
+ /* counters */
+ Counter backendResponses;
+ Counter backendAccessChallenges;
+ Counter backendOtherRequestsToSupplicant;
+ Counter backendAuthSuccesses;
+ Counter backendAuthFails;
+
+ /* Reauthentication Timer state machine */
+ enum { REAUTH_TIMER_INITIALIZE, REAUTH_TIMER_REAUTHENTICATE
+ } reauth_timer_state;
+ /* constants */
+ unsigned int reAuthPeriod; /* default 3600 s */
+ Boolean reAuthEnabled;
+
+ /* Authenticator Key Transmit state machine */
+ enum { AUTH_KEY_TX_NO_KEY_TRANSMIT, AUTH_KEY_TX_KEY_TRANSMIT
+ } auth_key_tx_state;
+
+ /* Key Receive state machine */
+ enum { KEY_RX_NO_KEY_RECEIVE, KEY_RX_KEY_RECEIVE } key_rx_state;
+ /* variables */
+ Boolean rxKey;
+
+ /* Controlled Directions state machine */
+ enum { CTRL_DIR_FORCE_BOTH, CTRL_DIR_IN_OR_BOTH } ctrl_dir_state;
+ /* variables */
+ ControlledDirection adminControlledDirections;
+ ControlledDirection operControlledDirections;
+ Boolean operEdge;
+
+ /* Authenticator Statistics Table */
+ Counter dot1xAuthEapolFramesRx;
+ Counter dot1xAuthEapolFramesTx;
+ Counter dot1xAuthEapolStartFramesRx;
+ Counter dot1xAuthEapolLogoffFramesRx;
+ Counter dot1xAuthEapolRespIdFramesRx;
+ Counter dot1xAuthEapolRespFramesRx;
+ Counter dot1xAuthEapolReqIdFramesTx;
+ Counter dot1xAuthEapolReqFramesTx;
+ Counter dot1xAuthInvalidEapolFramesRx;
+ Counter dot1xAuthEapLengthErrorFramesRx;
+ Counter dot1xAuthLastEapolFrameVersion;
+
+ /* Other variables - not defined in IEEE 802.1X */
+ u8 addr[ETH_ALEN]; /* Supplicant address */
+ int flags; /* EAPOL_SM_* */
+
+ /* EAPOL/AAA <-> EAP full authenticator interface */
+ struct eap_eapol_interface *eap_if;
+
+ int radius_identifier;
+ /* TODO: check when the last messages can be released */
+ struct radius_msg *last_recv_radius;
+ u8 last_eap_id; /* last used EAP Identifier */
+ u8 *identity;
+ size_t identity_len;
+ u8 eap_type_authsrv; /* EAP type of the last EAP packet from
+ * Authentication server */
+ u8 eap_type_supp; /* EAP type of the last EAP packet from Supplicant */
+ struct radius_class_data radius_class;
+
+ /* Keys for encrypting and signing EAPOL-Key frames */
+ u8 *eapol_key_sign;
+ size_t eapol_key_sign_len;
+ u8 *eapol_key_crypt;
+ size_t eapol_key_crypt_len;
+
+ struct eap_sm *eap;
+
+ Boolean initializing; /* in process of initializing state machines */
+ Boolean changed;
+
+ struct eapol_authenticator *eapol;
+
+ void *sta; /* station context pointer to use in callbacks */
+};
+
+#endif /* EAPOL_AUTH_SM_I_H */
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