added generic EAP_IDENTITY client implementation using peers IKEv2 ID
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/**
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* @file eap_identity.c
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*
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* @brief Implementation of eap_identity_t.
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*
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*/
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/*
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* Copyright (C) 2007 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "eap_identity.h"
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#include <daemon.h>
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#include <library.h>
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typedef struct private_eap_identity_t private_eap_identity_t;
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/**
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* Private data of an eap_identity_t object.
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*/
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struct private_eap_identity_t {
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/**
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* Public authenticator_t interface.
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*/
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eap_identity_t public;
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/**
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* ID of the peer
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*/
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identification_t *peer;
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};
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/**
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* Implementation of eap_method_t.process for the peer
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*/
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static status_t process(private_eap_identity_t *this,
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eap_payload_t *in, eap_payload_t **out)
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{
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chunk_t id, hdr;
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hdr = chunk_alloca(5);
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id = this->peer->get_encoding(this->peer);
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*(hdr.ptr + 0) = EAP_RESPONSE;
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*(hdr.ptr + 1) = in->get_identifier(in);
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*(u_int16_t*)(hdr.ptr + 2) = htons(hdr.len + id.len);
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*(hdr.ptr + 4) = EAP_IDENTITY;
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*out = eap_payload_create_data(chunk_cata("cc", hdr, id));
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return SUCCESS;
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}
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/**
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* Implementation of eap_method_t.initiate for the peer
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*/
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static status_t initiate(private_eap_identity_t *this, eap_payload_t **out)
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{
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/* peer never initiates */
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return FAILED;
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}
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/**
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* Implementation of eap_method_t.get_type.
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*/
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static eap_type_t get_type(private_eap_identity_t *this)
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{
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return EAP_IDENTITY;
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}
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/**
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* Implementation of eap_method_t.get_msk.
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*/
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static status_t get_msk(private_eap_identity_t *this, chunk_t *msk)
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{
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return FAILED;
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}
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/**
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* Implementation of eap_method_t.is_mutual.
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*/
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static bool is_mutual(private_eap_identity_t *this)
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{
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return FALSE;
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}
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/**
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* Implementation of eap_method_t.destroy.
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*/
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static void destroy(private_eap_identity_t *this)
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{
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free(this);
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}
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/*
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* Described in header.
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*/
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eap_identity_t *eap_create(eap_role_t role,
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identification_t *server, identification_t *peer)
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{
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private_eap_identity_t *this;
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if (role != EAP_PEER)
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{
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return NULL;
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}
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this = malloc_thing(private_eap_identity_t);
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/* public functions */
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this->public.eap_method_interface.initiate = (status_t(*)(eap_method_t*,eap_payload_t**))initiate;
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this->public.eap_method_interface.process = (status_t(*)(eap_method_t*,eap_payload_t*,eap_payload_t**))process;
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this->public.eap_method_interface.get_type = (eap_type_t(*)(eap_method_t*))get_type;
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this->public.eap_method_interface.is_mutual = (bool(*)(eap_method_t*))is_mutual;
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this->public.eap_method_interface.get_msk = (status_t(*)(eap_method_t*,chunk_t*))get_msk;
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this->public.eap_method_interface.destroy = (void(*)(eap_method_t*))destroy;
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/* private data */
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this->peer = peer;
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return &this->public;
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}
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@ -0,0 +1,59 @@
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/**
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* @file eap_identity.h
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*
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* @brief Interface of eap_identity_t.
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*
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*/
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/*
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* Copyright (C) 2007 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef EAP_IDENTITY_H_
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#define EAP_IDENTITY_H_
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typedef struct eap_identity_t eap_identity_t;
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#include <sa/authenticators/eap/eap_method.h>
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/**
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* @brief Implementation of the eap_method_t interface using EAP Identity.
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*
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* @b Constructors:
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* - eap_identity_create()
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* - eap_client_create() using eap_method EAP_IDENTITY
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*
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* @ingroup eap
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*/
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struct eap_identity_t {
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/**
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* Implemented eap_method_t interface.
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*/
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eap_method_t eap_method_interface;
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};
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/**
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* @brief Creates the EAP method EAP Identity.
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*
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* @param server ID of the EAP server
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* @param peer ID of the EAP client
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* @return eap_identity_t object
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*
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* @ingroup eap
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*/
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eap_identity_t *eap_create(eap_role_t role,
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identification_t *server, identification_t *peer);
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#endif /* EAP_IDENTITY_H_ */
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@ -163,6 +163,27 @@ static status_t process_peer(private_eap_authenticator_t *this,
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{
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eap_type_t type = in->get_type(in);
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if (type == EAP_IDENTITY)
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{
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eap_method_t *method = eap_method_create(type, EAP_PEER,
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this->ike_sa->get_other_id(this->ike_sa),
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this->ike_sa->get_my_id(this->ike_sa));
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if (method == NULL || method->process(method, in, out) != SUCCESS)
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{
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DBG1(DBG_IKE, "EAP server requested %N, but unable to process",
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eap_type_names, type);
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DESTROY_IF(method);
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return FAILED;
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}
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DBG1(DBG_IKE, "EAP server requested %N, sending IKE identity",
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eap_type_names, type);
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method->destroy(method);
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return NEED_MORE;
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}
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/* create an eap_method for the first call */
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if (this->method == NULL)
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{
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