SemaphoreRights Enumeración

Definición

Especifica los derechos de control de acceso que se pueden aplicar a los objetos de semáforo de sistema con nombre.Specifies the access control rights that can be applied to named system semaphore objects.

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

public enum class SemaphoreRights
[System.Flags]
[System.Runtime.InteropServices.ComVisible(false)]
[System.Security.SecurityCritical]
public enum SemaphoreRights
type SemaphoreRights = 
Public Enum SemaphoreRights
Herencia
SemaphoreRights
Atributos

Campos

ChangePermissions 262144

Derecho para cambiar las reglas de auditoría y de seguridad asociadas a un semáforo con nombre.The right to change the security and audit rules associated with a named semaphore.

Delete 65536

Derecho para eliminar un semáforo con nombre.The right to delete a named semaphore.

FullControl 2031619

Derecho para ejercer el control total sobre un semáforo con nombre y modificar sus reglas de acceso y de auditoría.The right to exert full control over a named semaphore, and to modify its access rules and audit rules.

Modify 2

Derecho para liberar un semáforo con nombre.The right to release a named semaphore.

ReadPermissions 131072

Derecho para abrir y copiar las reglas de acceso y de auditoría de un semáforo con nombre.The right to open and copy the access rules and audit rules for a named semaphore.

Synchronize 1048576

Derecho para esperar un semáforo con nombre.The right to wait on a named semaphore.

TakeOwnership 524288

Derecho para cambiar el propietario de un semáforo con nombre.The right to change the owner of a named semaphore.

Ejemplos

En el ejemplo de código siguiente se muestra SemaphoreRights el uso de valores al SemaphoreAccessRule crear y usar objetos.The following code example demonstrates the use of SemaphoreRights values when creating and using SemaphoreAccessRule objects. En el ejemplo se SemaphoreSecurity crea un objeto, se agregan reglas que permiten y deniegan distintos derechos para el usuario actual, y se muestra el par de reglas resultante.The example creates a SemaphoreSecurity object, adds rules that allow and deny various rights for the current user, and displays the resulting pair of rules. A continuación, el ejemplo permite nuevos derechos para el usuario actual y muestra el resultado, que muestra que los nuevos derechos se combinan con AccessControlType.Allow la regla existente.The example then allows new rights for the current user and displays the result, showing that the new rights are merged with the existing AccessControlType.Allow rule.

Nota

En este ejemplo no se adjunta el objeto de seguridad Semaphore a un objeto SemaphoreSecurity; Semaphore.GetAccessControl vea, método Semaphore.SetAccessControly.This example does not attach the security object to an Semaphore object; see SemaphoreSecurity, Semaphore.GetAccessControl method, and Semaphore.SetAccessControl.

using System;
using System.Threading;
using System.Security.AccessControl;
using System.Security.Principal;

public class Example
{
    public static void Main()
    {
        // Create a string representing the current user.
        string user = Environment.UserDomainName + "\\" + 
            Environment.UserName;

        // Create a security object that grants no access.
        SemaphoreSecurity mSec = new SemaphoreSecurity();

        // Add a rule that grants the current user the 
        // right to enter or release the semaphore.
        SemaphoreAccessRule rule = new SemaphoreAccessRule(user, 
            SemaphoreRights.Synchronize | SemaphoreRights.Modify, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        // Add a rule that denies the current user the 
        // right to change permissions on the semaphore.
        rule = new SemaphoreAccessRule(user, 
            SemaphoreRights.ChangePermissions, 
            AccessControlType.Deny);
        mSec.AddAccessRule(rule);

        // Display the rules in the security object.
        ShowSecurity(mSec);

        // Add a rule that allows the current user the 
        // right to read permissions on the semaphore. This rule
        // is merged with the existing Allow rule.
        rule = new SemaphoreAccessRule(user, 
            SemaphoreRights.ReadPermissions, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        ShowSecurity(mSec);
    }

    private static void ShowSecurity(SemaphoreSecurity security)
    {
        Console.WriteLine("\r\nCurrent access rules:\r\n");

        foreach(SemaphoreAccessRule ar in 
            security.GetAccessRules(true, true, typeof(NTAccount)))
        {
            Console.WriteLine("        User: {0}", ar.IdentityReference);
            Console.WriteLine("        Type: {0}", ar.AccessControlType);
            Console.WriteLine("      Rights: {0}", ar.SemaphoreRights);
            Console.WriteLine();
        }
    }
}

/*This code example produces output similar to following:

Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, Synchronize


Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, ReadPermissions, Synchronize
 */
Imports System.Threading
Imports System.Security.AccessControl
Imports System.Security.Principal

Public Class Example

    Public Shared Sub Main()

        ' Create a string representing the current user.
        Dim user As String = Environment.UserDomainName _ 
            & "\" & Environment.UserName

        ' Create a security object that grants no access.
        Dim mSec As New SemaphoreSecurity()

        ' Add a rule that grants the current user the 
        ' right to enter or release the semaphore.
        Dim rule As New SemaphoreAccessRule(user, _
            SemaphoreRights.Synchronize _
            Or SemaphoreRights.Modify, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ' Add a rule that denies the current user the 
        ' right to change permissions on the semaphore.
        rule = New SemaphoreAccessRule(user, _
            SemaphoreRights.ChangePermissions, _
            AccessControlType.Deny)
        mSec.AddAccessRule(rule)

        ' Display the rules in the security object.
        ShowSecurity(mSec)

        ' Add a rule that allows the current user the 
        ' right to read permissions on the semaphore. This 
        ' rule is merged with the existing Allow rule.
        rule = New SemaphoreAccessRule(user, _
            SemaphoreRights.ReadPermissions, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ShowSecurity(mSec)

    End Sub 

    Private Shared Sub ShowSecurity(ByVal security As SemaphoreSecurity)
        Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)

        For Each ar As SemaphoreAccessRule In _
            security.GetAccessRules(True, True, GetType(NTAccount))

            Console.WriteLine("        User: {0}", ar.IdentityReference)
            Console.WriteLine("        Type: {0}", ar.AccessControlType)
            Console.WriteLine("      Rights: {0}", ar.SemaphoreRights)
            Console.WriteLine()
        Next

    End Sub
End Class 

'This code example produces output similar to following:
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, Synchronize
'
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, ReadPermissions, Synchronize

Comentarios

Utilice la SemaphoreRights enumeración para especificar derechos de control de acceso SemaphoreSecurity al crear objetos.Use the SemaphoreRights enumeration to specify access control rights when you create SemaphoreSecurity objects. Para aplicar derechos de acceso a un semáforo de sistema con nombre SemaphoreSecurity , utilice objetos Semaphore.Semaphore(Int32, Int32, String, Boolean, SemaphoreSecurity) con el constructor Semaphore.SetAccessControl y el método.To apply access rights to a named system semaphore, use SemaphoreSecurity objects with the Semaphore.Semaphore(Int32, Int32, String, Boolean, SemaphoreSecurity) constructor and the Semaphore.SetAccessControl method.

Para obtener los valores numéricos de los derechos de acceso de Windows subyacentes, vea sincronización de objetos de seguridad y derechos de acceso (Windows) en MSDN Library.For the numeric values of the underlying Windows access rights, see Synchronization Object Security and Access Rights (Windows) in the MSDN Library.

Nota

No se admite la seguridad en los objetos de sincronización para Windows 98 o Windows Millennium Edition.Security on synchronization objects is not supported for Windows 98 or Windows Millennium Edition.

Se aplica a

Consulte también: