Package org.apache.archiva.redback.authentication

Enum AuthenticationControl

  • All Implemented Interfaces:
    Serializable, Comparable<AuthenticationControl>
    public enum AuthenticationControl
extends Enum<AuthenticationControl>
    These have the same meaning as for PAM modules
    required
    If a ‘required’ module returns a status that is not ‘success’, the operation will ultimately fail, but only after the modules below it are invoked. This seems senseless at first glance I suppose, but it serves the purpose of always acting the same way from the point of view of the user trying to utilize the service. The net effect is that it becomes impossible for a potential cracker to determine which module caused the failure – and the less information a malicious user has about your system, the better. Important to note is that even if all of the modules in the stack succeed, failure of one ‘required’ module means the operation will ultimately fail. Of course, if a required module succeeds, the operation can still fail if a ‘required’ module later in the stack fails.
    requisite
    If a ‘requisite’ module fails, the operation not only fails, but the operation is immediately terminated with a failure without invoking any other modules: ‘do not pass go, do not collect $200’, so to speak.
    sufficient
    If a sufficient module succeeds, it is enough to satisfy the requirements of sufficient modules in that realm for use of the service, and modules below it that are also listed as ‘sufficient’ are not invoked. If it fails, the operation fails unless a module invoked after it succeeds. Important to note is that if a ‘required’ module fails before a ‘sufficient’ one succeeds, the operation will fail anyway, ignoring the status of any ‘sufficient’ modules.
    optional
    An ‘optional’ module, according to the pam(8) manpage, will only cause an operation to fail if it’s the only module in the stack for that facility.
    Since:
    3.0
    Author:
    Martin Stockhammer

    • Method Detail

      • values

        public static AuthenticationControl[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (AuthenticationControl c : AuthenticationControl.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static AuthenticationControl valueOf​(String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        IllegalArgumentException - if this enum type has no constant with the specified name
        NullPointerException - if the argument is null