111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
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#ifndef EAP_I_H
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#define EAP_I_H
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#include "eap.h"
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/* draft-ietf-eap-statemachine-05.pdf - EAP Standalone Authenticator */
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struct eap_method {
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EapType method;
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const char *name;
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void * (*init)(struct eap_sm *sm);
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void * (*initPickUp)(struct eap_sm *sm);
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void (*reset)(struct eap_sm *sm, void *priv);
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u8 * (*buildReq)(struct eap_sm *sm, void *priv, int id,
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size_t *reqDataLen);
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int (*getTimeout)(struct eap_sm *sm, void *priv);
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Boolean (*check)(struct eap_sm *sm, void *priv,
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u8 *respData, size_t respDataLen);
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void (*process)(struct eap_sm *sm, void *priv,
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u8 *respData, size_t respDataLen);
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Boolean (*isDone)(struct eap_sm *sm, void *priv);
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u8 * (*getKey)(struct eap_sm *sm, void *priv, size_t *len);
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/* isSuccess is not specified in draft-ietf-eap-statemachine-05.txt,
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* but it is useful in implementing Policy.getDecision() */
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Boolean (*isSuccess)(struct eap_sm *sm, void *priv);
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};
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struct eap_sm {
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enum {
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EAP_DISABLED, EAP_INITIALIZE, EAP_IDLE, EAP_RECEIVED,
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EAP_INTEGRITY_CHECK, EAP_METHOD_RESPONSE, EAP_METHOD_REQUEST,
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EAP_PROPOSE_METHOD, EAP_SELECT_ACTION, EAP_SEND_REQUEST,
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EAP_DISCARD, EAP_NAK, EAP_RETRANSMIT, EAP_SUCCESS, EAP_FAILURE,
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EAP_TIMEOUT_FAILURE, EAP_PICK_UP_METHOD
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} EAP_state;
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/* Constants */
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int MaxRetrans;
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/* Lower layer to standalone authenticator variables */
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/* eapResp: eapol_sm->be_auth.eapResp */
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/* portEnabled: eapol_sm->portEnabled */
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/* eapRestart: eapol_sm->auth_pae.eapRestart */
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u8 *eapRespData;
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size_t eapRespDataLen;
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int retransWhile;
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int eapSRTT;
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int eapRTTVAR;
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/* Standalone authenticator to lower layer variables */
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/* eapReq: eapol_sm->be_auth.eapReq */
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/* eapNoReq: eapol_sm->be_auth.eapNoReq */
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/* eapSuccess: eapol_sm->eapSuccess */
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/* eapFail: eapol_sm->eapFail */
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/* eapTimeout: eapol_sm->eapTimeout */
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u8 *eapReqData;
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size_t eapReqDataLen;
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u8 *eapKeyData; /* also eapKeyAvailable (boolean) */
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size_t eapKeyDataLen;
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/* Standalone authenticator state machine local variables */
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/* Long-term (maintained betwen packets) */
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EapType currentMethod;
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int currentId;
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enum {
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METHOD_PROPOSED, METHOD_CONTINUE, METHOD_END
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} methodState;
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int retransCount;
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u8 *lastReqData;
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size_t lastReqDataLen;
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int methodTimeout;
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/* Short-term (not maintained between packets) */
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Boolean rxResp;
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int respId;
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EapType respMethod;
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Boolean ignore;
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enum {
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DECISION_SUCCESS, DECISION_FAILURE, DECISION_CONTINUE
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} decision;
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/* Miscellaneous variables */
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const struct eap_method *m; /* selected EAP method */
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/* not defined in draft-ietf-eap-statemachine-02 */
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Boolean changed;
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void *eapol_ctx, *msg_ctx;
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struct eapol_callbacks *eapol_cb;
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void *eap_method_priv;
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u8 *identity;
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size_t identity_len;
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int lastId; /* Identifier used in the last EAP-Packet */
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struct eap_user *user;
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int user_eap_method_index;
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int init_phase2;
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void *ssl_ctx;
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enum { TLV_REQ_NONE, TLV_REQ_SUCCESS, TLV_REQ_FAILURE } tlv_request;
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void *eap_sim_db_priv;
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Boolean backend_auth;
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Boolean update_user;
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};
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const struct eap_method * eap_sm_get_eap_methods(int method);
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int eap_user_get(struct eap_sm *sm, const u8 *identity, size_t identity_len,
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int phase2);
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void eap_sm_process_nak(struct eap_sm *sm, u8 *nak_list, size_t len);
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#endif /* EAP_I_H */
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