| /* |
| * Copyright (C) 2016 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.server.wifi.hotspot2.anqp.eap; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.net.ProtocolException; |
| import java.nio.BufferUnderflowException; |
| import java.nio.ByteBuffer; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * The Non-EAP Inner Authentication Type authentication parameter, IEEE802.11-2012, table 8-188. |
| * |
| * Format: |
| * | Type | |
| * 1 |
| */ |
| public class NonEAPInnerAuth extends AuthParam { |
| public static final int AUTH_TYPE_UNKNOWN = 0; |
| public static final int AUTH_TYPE_PAP = 1; |
| public static final int AUTH_TYPE_CHAP = 2; |
| public static final int AUTH_TYPE_MSCHAP = 3; |
| public static final int AUTH_TYPE_MSCHAPV2 = 4; |
| |
| private static final Map<String, Integer> AUTH_TYPE_MAP = new HashMap<>(); |
| static { |
| AUTH_TYPE_MAP.put("PAP", AUTH_TYPE_PAP); |
| AUTH_TYPE_MAP.put("CHAP", AUTH_TYPE_CHAP); |
| AUTH_TYPE_MAP.put("MS-CHAP", AUTH_TYPE_MSCHAP); |
| AUTH_TYPE_MAP.put("MS-CHAP-V2", AUTH_TYPE_MSCHAPV2); |
| } |
| |
| @VisibleForTesting |
| public static final int EXPECTED_LENGTH_VALUE = 1; |
| |
| private final int mAuthType; |
| |
| public NonEAPInnerAuth(int authType) { |
| super(AuthParam.PARAM_TYPE_NON_EAP_INNER_AUTH_TYPE); |
| mAuthType = authType; |
| } |
| |
| /** |
| * Parse a NonEAPInnerAuth from the given buffer. |
| * |
| * @param payload The byte buffer to read from |
| * @param length The length of the data |
| * @return {@link NonEAPInnerAuth} |
| * @throws BufferUnderflowException |
| */ |
| public static NonEAPInnerAuth parse(ByteBuffer payload, int length) throws ProtocolException { |
| if (length != EXPECTED_LENGTH_VALUE) { |
| throw new ProtocolException("Invalid length: " + length); |
| } |
| int authType = payload.get() & 0xFF; |
| return new NonEAPInnerAuth(authType); |
| } |
| |
| /** |
| * Convert an authentication type string to an integer representation. |
| * |
| * @param typeStr The string of authentication type |
| * @return int |
| */ |
| public static int getAuthTypeID(String typeStr) { |
| if (AUTH_TYPE_MAP.containsKey(typeStr)) { |
| return AUTH_TYPE_MAP.get(typeStr).intValue(); |
| } |
| return AUTH_TYPE_UNKNOWN; |
| } |
| |
| @Override |
| public boolean equals(Object thatObject) { |
| if (thatObject == this) { |
| return true; |
| } |
| if (!(thatObject instanceof NonEAPInnerAuth)) { |
| return false; |
| } |
| NonEAPInnerAuth that = (NonEAPInnerAuth) thatObject; |
| return mAuthType == that.mAuthType; |
| } |
| |
| @Override |
| public int hashCode() { |
| return mAuthType; |
| } |
| |
| @Override |
| public String toString() { |
| return "NonEAPInnerAuth{mAuthType=" + mAuthType + "}"; |
| } |
| } |