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components/wpa_supplicant/src/eapol_auth/eapol_auth_sm_i.h
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/*
* IEEE 802.1X-2004 Authenticator - EAPOL state machine (internal definitions)
* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef EAPOL_AUTH_SM_I_H
#define EAPOL_AUTH_SM_I_H
#include "common/defs.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 */
bool authAbort;
bool authFail;
PortState authPortStatus;
bool authStart;
bool authTimeout;
bool authSuccess;
bool eapolEap;
bool initialize;
bool keyDone;
bool keyRun;
bool keyTxEnabled;
PortTypes portControl;
bool portValid;
bool reAuthenticate;
/* Port Timers state machine */
/* 'bool 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 */
bool eapolLogoff;
bool 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 */
bool 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 */
bool rxKey;
/* Controlled Directions state machine */
enum { CTRL_DIR_FORCE_BOTH, CTRL_DIR_IN_OR_BOTH } ctrl_dir_state;
/* variables */
ControlledDirection adminControlledDirections;
ControlledDirection operControlledDirections;
bool 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 */
#ifndef CONFIG_NO_RADIUS
struct wpabuf *radius_cui; /* Chargeable-User-Identity */
#endif
struct eap_sm *eap;
bool initializing; /* in process of initializing state machines */
bool changed;
struct eapol_authenticator *eapol;
void *sta; /* station context pointer to use in callbacks */
int remediation;
u64 acct_multi_session_id;
};
#endif /* EAPOL_AUTH_SM_I_H */
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