Re-initialize hostapd/wpa_supplicant git repository based on 0.6.3 release
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Jouni Malinen
Jouni Malinen
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589 changed files with 213408 additions and 0 deletions
181
src/eap_server/eap_i.h
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181
src/eap_server/eap_i.h
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/*
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* hostapd / EAP Authenticator state machine internal structures (RFC 4137)
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* Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
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*
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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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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef EAP_I_H
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#define EAP_I_H
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#include "wpabuf.h"
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#include "eap_server/eap.h"
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#include "eap_common/eap_common.h"
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/* RFC 4137 - EAP Standalone Authenticator */
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/**
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* struct eap_method - EAP method interface
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* This structure defines the EAP method interface. Each method will need to
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* register its own EAP type, EAP name, and set of function pointers for method
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* specific operations. This interface is based on section 5.4 of RFC 4137.
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*/
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struct eap_method {
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int vendor;
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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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struct wpabuf * (*buildReq)(struct eap_sm *sm, void *priv, u8 id);
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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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struct wpabuf *respData);
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void (*process)(struct eap_sm *sm, void *priv,
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struct wpabuf *respData);
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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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* free - Free EAP method data
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* @method: Pointer to the method data registered with
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* eap_server_method_register().
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*
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* This function will be called when the EAP method is being
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* unregistered. If the EAP method allocated resources during
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* registration (e.g., allocated struct eap_method), they should be
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* freed in this function. No other method functions will be called
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* after this call. If this function is not defined (i.e., function
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* pointer is %NULL), a default handler is used to release the method
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* data with free(method). This is suitable for most cases.
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*/
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void (*free)(struct eap_method *method);
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#define EAP_SERVER_METHOD_INTERFACE_VERSION 1
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/**
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* version - Version of the EAP server method interface
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*
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* The EAP server method implementation should set this variable to
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* EAP_SERVER_METHOD_INTERFACE_VERSION. This is used to verify that the
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* EAP method is using supported API version when using dynamically
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* loadable EAP methods.
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*/
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int version;
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/**
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* next - Pointer to the next EAP method
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*
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* This variable is used internally in the EAP method registration code
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* to create a linked list of registered EAP methods.
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*/
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struct eap_method *next;
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/**
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* get_emsk - Get EAP method specific keying extended material (EMSK)
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* @sm: Pointer to EAP state machine allocated with eap_sm_init()
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* @priv: Pointer to private EAP method data from eap_method::init()
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* @len: Pointer to a variable to store EMSK length
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* Returns: EMSK or %NULL if not available
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*
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* This function can be used to get the extended keying material from
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* the EAP method. The key may already be stored in the method-specific
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* private data or this function may derive the key.
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*/
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u8 * (*get_emsk)(struct eap_sm *sm, void *priv, size_t *len);
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};
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/**
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* struct eap_sm - EAP server state machine data
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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_INITIALIZE_PASSTHROUGH, EAP_IDLE2, EAP_RETRANSMIT2,
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EAP_RECEIVED2, EAP_DISCARD2, EAP_SEND_REQUEST2,
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EAP_AAA_REQUEST, EAP_AAA_RESPONSE, EAP_AAA_IDLE,
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EAP_TIMEOUT_FAILURE2, EAP_FAILURE2, EAP_SUCCESS2
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} EAP_state;
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/* Constants */
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int MaxRetrans;
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struct eap_eapol_interface eap_if;
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/* Full 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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struct wpabuf *lastReqData;
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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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int respVendor;
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u32 respVendorMethod;
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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_PASSTHROUGH
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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 RFC 4137 */
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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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int eap_server;
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int num_rounds;
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enum {
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METHOD_PENDING_NONE, METHOD_PENDING_WAIT, METHOD_PENDING_CONT
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} method_pending;
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u8 *auth_challenge;
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u8 *peer_challenge;
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u8 *pac_opaque_encr_key;
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char *eap_fast_a_id;
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int eap_sim_aka_result_ind;
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};
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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, const u8 *nak_list, size_t len);
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#endif /* EAP_I_H */
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