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Enumeración SecurityPermissionFlag

 

Publicado: octubre de 2016

Especifica los marcadores de acceso para el objeto de permiso de seguridad.

Esta enumeración tiene un atributo FlagsAttribute que permite una combinación bit a bit de sus valores de miembro.

Espacio de nombres:   System.Security.Permissions
Ensamblado:  mscorlib (en mscorlib.dll)

[SerializableAttribute]
[FlagsAttribute]
[ComVisibleAttribute(true)]
public enum SecurityPermissionFlag

Nombre de miembroDescripción
AllFlags

El estado no restringido del permiso.

Assertion

Posibilidad de afirmar que los llamadores de todos los de este código tienen el permiso necesario para la operación.

BindingRedirects

Permiso para realizar la redirección de enlace explícita en el archivo de configuración de la aplicación. Esto incluye la redirección de ensamblados de .NET Framework que se han unificado, así como otros ensamblados que se encuentran fuera de .NET Framework.

ControlAppDomain

Capacidad para crear y manipular un AppDomain.

ControlDomainPolicy

Capacidad para especificar la directiva de dominio.

ControlEvidence

Capacidad para proporcionar evidencia, incluida la capacidad de modificar la evidencia proporcionada por common language runtime.

ControlPolicy

Capacidad para ver y modificar la directiva.

ControlPrincipal

Capacidad de manipular el objeto principal.

ControlThread

Capacidad de utilizar determinadas operaciones avanzadas en subprocesos.

Execution

Permiso ejecutar el código. Sin este permiso, no se ejecuta código administrado.

Infrastructure

Permiso para conectar código a la infraestructura de common language runtime, como agregar receptores de contexto remoto, receptores de envíos y receptores dinámicos.

NoFlags

No hay acceso de seguridad.

RemotingConfiguration

Permiso para configurar tipos y canales remotos.

SerializationFormatter

Capacidad para proporcionar servicios de serialización. Formateadores de serialización utilizan.

SkipVerification

Capacidad de omitir la comprobación del código en este ensamblado. Si se concede este permiso, se puede ejecutar código no comprobable.

UnmanagedCode

Capacidad de llamar a código no administrado.

Esta enumeración tiene un atributo FlagsAttribute que permite una combinación bit a bit de sus valores miembro.

Esta enumeración se usa en SecurityPermission.

System_CAPS_cautionPrecaución

Muchos de estos indicadores son eficaces y solamente deben concederse a código de plena confianza.

En el ejemplo de código siguiente se muestra el uso de la SecurityPermissionFlag (enumeración) para denegar y solicitar permisos de seguridad.

// This sample demonstrates the use of the SecurityPermissionAttribute.

using System;
using System.Security.Permissions;
using System.Security;


class MyClass
{
    public static void PermissionDemo()
    {
        try
        {
            DenySecurityPermissions();
            DenyAllSecurityPermissions();
            DoNotDenySecurityPermissions();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }



    }

    // This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
    // Set the Assertion property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Assertion = true)]
        // Set the ControlAppDomain property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain = true)]
        // Set the ControlDomainPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy = true)]
        // Set the ControlEvidence property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence = true)]
        // Set the ControlPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy = true)]
        // Set the ControlPrincipal property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal = true)]
        // Set the ControlThread property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlThread = true)]
        // Set the Execution property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Execution = true)]
        // Set the Flags property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.NoFlags)]
        // Set the Infrastructure property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure = true)]
        // Set the RemotingConfiguration property.
    [SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration = true)]
        // Set the SerializationFormatter property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter = true)]
        // Set the SkipVerification property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification = true)]
        // Set the UnmanagedCode property.
    [SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode = true)]

    public static void DenySecurityPermissions()
    {
        Console.WriteLine("Executing DenySecurityPermissions.");
        Console.WriteLine("Denied all permissions individually.");
        TestSecurityPermissions();
    }

    // This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.AllFlags)]
    public static void DenyAllSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DenyAllSecurityPermissions.");
        Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.");
        TestSecurityPermissions();
    }

    // This method demonstrates the effect of not denying security permissions.
    public static void DoNotDenySecurityPermissions()
    {
        Console.WriteLine("\nExecuting DoNotDenySecurityPermissions.");
        Console.WriteLine("No permissions have been denied.");
        DemandSecurityPermissions();
    }

    public static void TestSecurityPermissions()
    {
        Console.WriteLine("\nExecuting TestSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }

    }

    public static void TestFailed()
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception();
    }

    public static void DemandSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DemandSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }

    }

    static void Main(string[] args)
    {
        PermissionDemo();
    }

}

.NET Framework
Disponible desde 1.1
Silverlight
Disponible desde 2.0
Windows Phone Silverlight
Disponible desde 7.0
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