/*
* @(#)GSSException.java 1.11 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package org.ietf.jgss;
/**
* This exception is thrown whenever a GSS-API error occurs, including
* any mechanism specific error. It may contain both the major and the
* minor GSS-API status codes. Major error codes are those defined at the
* GSS-API level in this class. Minor error codes are mechanism specific
* error codes that can provide additional information. The underlying
* mechanism implementation is responsible for setting appropriate minor
* status codes when throwing this exception. Aside from delivering the
* numeric error codes to the caller, this class performs the mapping from
* their numeric values to textual representations. <p>
*
* @author Mayank Upadhyay
* @version 1.11, 12/19/03
* @since 1.4
*/
public class GSSException extends Exception {
private static final long serialVersionUID = -2706218945227726672L;
/**
* Channel bindings mismatch.
*/
public static final int BAD_BINDINGS = 1; //start with 1
/**
* Unsupported mechanism requested.
*/
public static final int BAD_MECH = 2;
/**
* Invalid name provided.
*/
public static final int BAD_NAME = 3;
/**
* Name of unsupported type provided.
*/
public static final int BAD_NAMETYPE = 4;
/**
* Invalid status code.
*/
/*
* This is meant to be thrown by display_status which displays
* major/minor status when an incorrect status type is passed in to it!
*/
public static final int BAD_STATUS = 5;
/**
* Token had invalid integrity check.
*/
public static final int BAD_MIC = 6;
/**
* Security context expired.
*/
public static final int CONTEXT_EXPIRED = 7;
/**
* Expired credentials.
*/
public static final int CREDENTIALS_EXPIRED = 8;
/**
* Defective credentials.
*
*/
public static final int DEFECTIVE_CREDENTIAL = 9;
/**
* Defective token.
*
*/
public static final int DEFECTIVE_TOKEN = 10;
/**
* General failure, unspecified at GSS-API level.
*/
public static final int FAILURE = 11;
/**
* Invalid security context.
*/
public static final int NO_CONTEXT = 12;
/**
* Invalid credentials.
*/
public static final int NO_CRED = 13;
/**
* Unsupported QOP value.
*/
public static final int BAD_QOP = 14;
/**
* Operation unauthorized.
*/
public static final int UNAUTHORIZED = 15;
/**
* Operation unavailable.
*/
public static final int UNAVAILABLE = 16;
/**
* Duplicate credential element requested.
*/
public static final int DUPLICATE_ELEMENT = 17;
/**
* Name contains multi-mechanism elements.
*/
public static final int NAME_NOT_MN = 18;
/**
* The token was a duplicate of an earlier token.
* This is a fatal error code that may occur during
* context establishment. It is not used to indicate
* supplementary status values. The MessageProp object is
* used for that purpose.
*/
public static final int DUPLICATE_TOKEN = 19;
/**
* The token's validity period has expired. This is a
* fatal error code that may occur during context establishment.
* It is not used to indicate supplementary status values.
* The MessageProp object is used for that purpose.
*/
public static final int OLD_TOKEN = 20;
/**
* A later token has already been processed. This is a
* fatal error code that may occur during context establishment.
* It is not used to indicate supplementary status values.
* The MessageProp object is used for that purpose.
*/
public static final int UNSEQ_TOKEN = 21;
/**
* An expected per-message token was not received. This is a
* fatal error code that may occur during context establishment.
* It is not used to indicate supplementary status values.
* The MessageProp object is used for that purpose.
*/
public static final int GAP_TOKEN = 22;
private static String[] messages = {
"Channel binding mismatch", // BAD_BINDINGS
"Unsupported mechanism requested", // BAD_MECH
"Invalid name provided", // BAD_NAME
"Name of unsupported type provided", //BAD_NAMETYPE
"Invalid input status selector", // BAD_STATUS
"Token had invalid integrity check", // BAD_SIG
"Specified security context expired", // CONTEXT_EXPIRED
"Expired credentials detected", // CREDENTIALS_EXPIRED
"Defective credential detected", // DEFECTIVE_CREDENTIAL
"Defective token detected", // DEFECTIVE_TOKEN
"Failure unspecified at GSS-API level", // FAILURE
"Security context init/accept not yet called or context deleted",
// NO_CONTEXT
"No valid credentials provided", // NO_CRED
"Unsupported QOP value", // BAD_QOP
"Operation unauthorized", // UNAUTHORIZED
"Operation unavailable", // UNAVAILABLE
"Duplicate credential element requested", //DUPLICATE_ELEMENT
"Name contains multi-mechanism elements", // NAME_NOT_MN
"The token was a duplicate of an earlier token", //DUPLICATE_TOKEN
"The token's validity period has expired", //OLD_TOKEN
"A later token has already been processed", //UNSEQ_TOKEN
"An expected per-message token was not received", //GAP_TOKEN
};
/**
* The major code for this exception
*
* @serial
*/
private int major;
/**
* The minor code for this exception
*
* @serial
*/
private int minor = 0;
/**
* The text string for minor code
*
* @serial
*/
private String minorMessage = null;
/**
* Alternate text string for major code
*
* @serial
*/
private String majorString = null;
/**
* Creates a GSSException object with a specified major code.
*
* @param majorCode the The GSS error code for the problem causing this
* exception to be thrown.
*/
public GSSException (int majorCode) {
if (validateMajor(majorCode))
major = majorCode;
else
major = FAILURE;
}
/**
* Construct a GSSException object with a specified major code and a
* specific major string for it.
*
* @param majorCode the fatal error code causing this exception.
* @param majorString an expicit message to be included in this exception
*/
GSSException (int majorCode, String majorString) {
if (validateMajor(majorCode))
major = majorCode;
else
major = FAILURE;
this.majorString = majorString;
}
/**
* Creates a GSSException object with the specified major code, minor
* code, and minor code textual explanation. This constructor is to be
* used when the exception is originating from the underlying mechanism
* level. It allows the setting of both the GSS code and the mechanism
* code.
*
* @param majorCode the GSS error code for the problem causing this
* exception to be thrown.
* @param minorCode the mechanism level error code for the problem
* causing this exception to be thrown.
* @param minorString the textual explanation of the mechanism error
* code.
*/
public GSSException (int majorCode, int minorCode, String minorString) {
if (validateMajor(majorCode))
major = majorCode;
else
major = FAILURE;
minor = minorCode;
minorMessage = minorString;
}
/**
* Returns the GSS-API level major error code for the problem causing
* this exception to be thrown. Major error codes are
* defined at the mechanism independent GSS-API level in this
* class. Mechanism specific error codes that might provide more
* information aer set as the minor error code.
*
* @return int the GSS-API level major error code causing this exception
* @see #getMajorString
* @see #getMinor
* @see #getMinorString
*/
public int getMajor() {
return major;
}
/**
* Returns the mechanism level error code for the problem causing this
* exception to be thrown. The minor code is set by the underlying
* mechanism.
*
* @return int the mechanism error code; 0 indicates that it has not
* been set.
* @see #getMinorString
* @see #setMinor
*/
public int getMinor(){
return minor;
}
/**
* Returns a string explaining the GSS-API level major error code in
* this exception.
*
* @return String explanation string for the major error code
* @see #getMajor
* @see #toString
*/
public String getMajorString() {
if (majorString != null)
return majorString;
else
return messages[major - 1];
}
/**
* Returns a string explaining the mechanism specific error code.
* If the minor status code is 0, then no mechanism level error details
* will be available.
*
* @return String a textual explanation of mechanism error code
* @see #getMinor
* @see #getMajorString
* @see #toString
*/
public String getMinorString() {
return minorMessage;
}
/**
* Used by the exception thrower to set the mechanism
* level minor error code and its string explanation. This is used by
* mechanism providers to indicate error details.
*
* @param minorCode the mechanism specific error code
* @param message textual explanation of the mechanism error code
* @see #getMinor
*/
public void setMinor(int minorCode, String message) {
minor = minorCode;
minorMessage = message;
}
/**
* Returns a textual representation of both the major and the minor
* status codes.
*
* @return a String with the error descriptions
*/
public String toString() {
return ("GSSException: " + getMessage());
}
/**
* Returns a textual representation of both the major and the minor
* status codes.
*
* @return a String with the error descriptions
*/
public String getMessage() {
if (minor == 0)
return (getMajorString());
return (getMajorString()
+ " (Mechanism level: " + getMinorString() + ")");
}
/*
* Validates the major code in the proper range.
*/
private boolean validateMajor(int major) {
if (major > 0 && major <= messages.length)
return (true);
return (false);
}
}
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