| /* |
| * 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; |
| |
| /** |
| * The Credential Type authentication parameter, IEEE802.11-2012, table 8-188. |
| * Used by both Credential Type and Tunneled EAP Method Credential Type authentication |
| * parameter. |
| * |
| * Format: |
| * | Type | |
| * 1 |
| */ |
| public class CredentialType extends AuthParam { |
| public static final int CREDENTIAL_TYPE_SIM = 1; |
| public static final int CREDENTIAL_TYPE_USIM = 2; |
| public static final int CREDENTIAL_TYPE_NFC = 3; |
| public static final int CREDENTIAL_TYPE_HARDWARE_TOKEN = 4; |
| public static final int CREDENTIAL_TYPE_SOFTWARE_TOKEN = 5; |
| public static final int CREDENTIAL_TYPE_CERTIFICATE = 6; |
| public static final int CREDENTIAL_TYPE_USERNAME_PASSWORD = 7; |
| public static final int CREDENTIAL_TYPE_NONE = 8; |
| public static final int CREDENTIAL_TYPE_ANONYMOUS = 9; |
| public static final int CREDENTIAL_TYPE_VENDOR_SPECIFIC = 10; |
| |
| @VisibleForTesting |
| public static final int EXPECTED_LENGTH_VALUE = 1; |
| |
| private final int mType; |
| |
| @VisibleForTesting |
| public CredentialType(int authType, int credType) { |
| super(authType); |
| mType = credType; |
| } |
| |
| /** |
| * Parse a CredentialType from the given buffer. |
| * |
| * @param payload The byte buffer to read from |
| * @param length The length of the data |
| * @param tunneled Flag indicating if this is for a Tunneled EAP Method |
| * @return {@link CredentialType} |
| * @throws ProtocolException |
| * @throws BufferUnderflowException |
| */ |
| public static CredentialType parse(ByteBuffer payload, int length, boolean tunneled) |
| throws ProtocolException { |
| if (length != EXPECTED_LENGTH_VALUE) { |
| throw new ProtocolException("Invalid length: " + length); |
| } |
| int credType = payload.get() & 0xFF; |
| int authType = tunneled ? AuthParam.PARAM_TYPE_TUNNELED_EAP_METHOD_CREDENTIAL_TYPE |
| : AuthParam.PARAM_TYPE_CREDENTIAL_TYPE; |
| return new CredentialType(authType, credType); |
| } |
| |
| public int getType() { |
| return mType; |
| } |
| |
| @Override |
| public boolean equals(Object thatObject) { |
| if (thatObject == this) { |
| return true; |
| } |
| if (!(thatObject instanceof CredentialType)) { |
| return false; |
| } |
| CredentialType that = (CredentialType) thatObject; |
| return mType == that.mType; |
| } |
| |
| @Override |
| public int hashCode() { |
| return mType; |
| } |
| |
| @Override |
| public String toString() { |
| return "CredentialType{mType=" + mType + "}"; |
| } |
| } |