/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.oracle.security.ucrypto;

import java.util.*;

import java.security.ProviderException;

/**

 * The exception class used by SunUcrypto provider. An exception

 * object of this class indicates that a function call to the underlying

 * native calls returned a value not equal to CRYPTO_SUCCESS.

 *

 */

public final class UcryptoException extends ProviderException {

    private static final long serialVersionUID = -933864511110035746L;

    // NOTE: check /usr/include/sys/crypto/common.h for updates

    private static final String[] ERROR_MSG = {

        "CRYPTO_SUCCESS",

        "CRYPTO_CANCEL",

        "CRYPTO_HOST_MEMORY",

        "CRYPTO_GENERAL_ERROR",

        "CRYPTO_FAILED",

        "CRYPTO_ARGUMENTS_BAD",

        "CRYPTO_ATTRIBUTE_READ_ONLY",

        "CRYPTO_ATTRIBUTE_SENSITIVE",

        "CRYPTO_ATTRIBUTE_TYPE_INVALID",

        "CRYPTO_ATTRIBUTE_VALUE_INVALID",

        "CRYPTO_CANCELED",

        "CRYPTO_DATA_INVALID",

        "CRYPTO_DATA_LEN_RANGE",

        "CRYPTO_DEVICE_ERROR",

        "CRYPTO_DEVICE_MEMORY",

        "CRYPTO_DEVICE_REMOVED",

        "CRYPTO_ENCRYPTED_DATA_INVALID",

        "CRYPTO_ENCRYPTED_DATA_LEN_RANGE",

        "CRYPTO_KEY_HANDLE_INVALID",

        "CRYPTO_KEY_SIZE_RANGE",

        "CRYPTO_KEY_TYPE_INCONSISTENT",

        "CRYPTO_KEY_NOT_NEEDED",

        "CRYPTO_KEY_CHANGED",

        "CRYPTO_KEY_NEEDED",

        "CRYPTO_KEY_INDIGESTIBLE",

        "CRYPTO_KEY_FUNCTION_NOT_PERMITTED",

        "CRYPTO_KEY_NOT_WRAPPABLE",

        "CRYPTO_KEY_UNEXTRACTABLE",

        "CRYPTO_MECHANISM_INVALID",

        "CRYPTO_MECHANISM_PARAM_INVALID",

        "CRYPTO_OBJECT_HANDLE_INVALID",

        "CRYPTO_OPERATION_IS_ACTIVE",

        "CRYPTO_OPERATION_NOT_INITIALIZED",

        "CRYPTO_PIN_INCORRECT",

        "CRYPTO_PIN_INVALID",

        "CRYPTO_PIN_LEN_RANGE",

        "CRYPTO_PIN_EXPIRED",

        "CRYPTO_PIN_LOCKED",

        "CRYPTO_SESSION_CLOSED",

        "CRYPTO_SESSION_COUNT",

        "CRYPTO_SESSION_HANDLE_INVALID",

        "CRYPTO_SESSION_READ_ONLY",

        "CRYPTO_SESSION_EXISTS",

        "CRYPTO_SESSION_READ_ONLY_EXISTS",

        "CRYPTO_SESSION_READ_WRITE_SO_EXISTS",

        "CRYPTO_SIGNATURE_INVALID",

        "CRYPTO_SIGNATURE_LEN_RANGE",

        "CRYPTO_TEMPLATE_INCOMPLETE",

        "CRYPTO_TEMPLATE_INCONSISTENT",

        "CRYPTO_UNWRAPPING_KEY_HANDLE_INVALID",

        "CRYPTO_UNWRAPPING_KEY_SIZE_RANGE",

        "CRYPTO_UNWRAPPING_KEY_TYPE_INCONSISTENT",

        "CRYPTO_USER_ALREADY_LOGGED_IN",

        "CRYPTO_USER_NOT_LOGGED_IN",

        "CRYPTO_USER_PIN_NOT_INITIALIZED",

        "CRYPTO_USER_TYPE_INVALID",

        "CRYPTO_USER_ANOTHER_ALREADY_LOGGED_IN",

        "CRYPTO_USER_TOO_MANY_TYPES",

        "CRYPTO_WRAPPED_KEY_INVALID",

        "CRYPTO_WRAPPED_KEY_LEN_RANGE",

        "CRYPTO_WRAPPING_KEY_HANDLE_INVALID",

        "CRYPTO_WRAPPING_KEY_SIZE_RANGE",

        "CRYPTO_WRAPPING_KEY_TYPE_INCONSISTENT",

        "CRYPTO_RANDOM_SEED_NOT_SUPPORTED",

        "CRYPTO_RANDOM_NO_RNG",

        "CRYPTO_DOMAIN_PARAMS_INVALID",

        "CRYPTO_BUFFER_TOO_SMALL",

        "CRYPTO_INFORMATION_SENSITIVE",

        "CRYPTO_NOT_SUPPORTED",

        "CRYPTO_QUEUED",

        "CRYPTO_BUFFER_TOO_BIG",

        "CRYPTO_INVALID_CONTEXT",

        "CRYPTO_INVALID_MAC",

        "CRYPTO_MECH_NOT_SUPPORTED",

        "CRYPTO_INCONSISTENT_ATTRIBUTE",

        "CRYPTO_NO_PERMISSION",

        "CRYPTO_INVALID_PROVIDER_ID",

        "CRYPTO_VERSION_MISMATCH",

        "CRYPTO_BUSY",

        "CRYPTO_UNKNOWN_PROVIDER",

        "CRYPTO_MODVERIFICATION_FAILED",

        "CRYPTO_OLD_CTX_TEMPLATE",

        "CRYPTO_WEAK_KEY",

        "CRYPTO_FIPS140_ERROR"

    };

    /**

     * The error code if this exception is triggered by a Ucrypto error.

     */

    private final int errorCode;

    /**

     * This method gets the corresponding text error message from a

     * predefined mapping. If mapping is not found, then it returns the error

     * code as a hex-string.

     *

     * @return The message or the error code; e.g. "CRYPTO_DATA_INVALID" or

     *         "0x88".

     */

    static String getErrorMessage(int errorCode) {

        String message;

        if (errorCode < ERROR_MSG.length) {

            message = ERROR_MSG[errorCode];

        } else {

            message = "0x" + Integer.toHexString(errorCode);

        }

        return message;

    }

    /**

     * Constructor taking the error code as defined for the CRYPTO_* constants

     */

    public UcryptoException(int rv) {

        super(getErrorMessage(rv));

        this.errorCode = rv;

    }

    public UcryptoException(String message) {

        super(message);

        errorCode = -1;

    }

    public UcryptoException(String message, Throwable cause) {

        super(message, cause);

        errorCode = -1;

    }

    /**

     * Returns the Ucrypto error code.

     *

     * @return The error code.

     */

    public int getErrorCode() {

        return errorCode;

    }

}