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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ike.eap;
/**
* IEapCallback represents a Callback interface to be implemented by clients of the
* {@link EapAuthenticator}.
*
* <p>Exactly one of these callbacks will be called for each message processed by the
* {@link EapAuthenticator}.
*
* @see <a href="https://tools.ietf.org/html/rfc3748#section-4">RFC 3748, Extensible Authentication
* Protocol (EAP)</a>
*/
public interface IEapCallback {
/**
* Callback used to indicate that the EAP Authentication session was successful.
*
* @param msk The Master Session Key (MSK) generated in the session
* @param emsk The Extended Master Session Key (EMSK) generated in the session
*/
void onSuccess(byte[] msk, byte[] emsk);
/**
* Callback used to indicate that the EAP Authentication Session was unsuccessful.
*/
void onFail();
/**
* Callback used to return an EAP-Response message for the message being processed.
*
* @param eapMsg byte-array encoded EAP-Response message to be sent to the Authentication server
*/
void onResponse(byte[] eapMsg);
/**
* Callback used to indicate that there was an error processing the current EAP message.
*
* @param cause The cause of the processing error
*/
void onError(Throwable cause);
}
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