RegistryAccessRule Clase

Definición

public ref class RegistryAccessRule sealed : System::Security::AccessControl::AccessRule

public sealed class RegistryAccessRule : System.Security.AccessControl.AccessRule

[System.Security.SecurityCritical]
public sealed class RegistryAccessRule : System.Security.AccessControl.AccessRule

type RegistryAccessRule = class
    inherit AccessRule

[<System.Security.SecurityCritical>]
type RegistryAccessRule = class
    inherit AccessRule

Public NotInheritable Class RegistryAccessRule
Inherits AccessRule

Herencia

Object

AuthorizationRule

AccessRule

RegistryAccessRule

Atributos

SecurityCriticalAttribute

Ejemplos

En el ejemplo de código siguiente se muestran las reglas de acceso con herencia y propagación. El ejemplo crea un RegistrySecurity objeto y, a continuación, crea y agrega dos reglas que tienen la ContainerInherit marca . La primera regla no tiene marcas de propagación, mientras que la segunda tiene NoPropagateInherit y InheritOnly.

El programa muestra las reglas en el RegistrySecurity objeto y, a continuación, usa el objeto para crear una subclave. El programa crea una subclave secundaria y una subclave secundaria y, a continuación, muestra la seguridad de cada subclave. Por último, el programa elimina las claves de prueba.

using System;
using System.Security.AccessControl;
using System.Security.Principal;
using System.Security;
using Microsoft.Win32;

public class Example
{
    public static void Main()
    {
        const string TestKey = "TestKey3927";
        RegistryKey cu = Registry.CurrentUser;

        string user = Environment.UserDomainName + 
            "\\" + Environment.UserName;

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

        // Add a rule that grants the current user the right
        // to read and enumerate the name/value pairs in a key, 
        // to read its access and audit rules, to enumerate
        // its subkeys, to create subkeys, and to delete the key. 
        // The rule is inherited by all contained subkeys.
        //
        RegistryAccessRule rule = new RegistryAccessRule(user, 
           RegistryRights.ReadKey | RegistryRights.WriteKey 
               | RegistryRights.Delete, 
           InheritanceFlags.ContainerInherit, 
           PropagationFlags.None, 
           AccessControlType.Allow
        );
        mSec.AddAccessRule(rule);

        // Add a rule that allows the current user the right
        // right to set the name/value pairs in a key. 
        // This rule is inherited by contained subkeys, but
        // propagation flags limit it to immediate child 
        // subkeys.
        rule = new RegistryAccessRule(user, 
            RegistryRights.ChangePermissions, 
            InheritanceFlags.ContainerInherit, 
            PropagationFlags.InheritOnly | 
                PropagationFlags.NoPropagateInherit, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

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

        // Create the test key using the security object.
        //
        RegistryKey rk = cu.CreateSubKey(TestKey, 
            RegistryKeyPermissionCheck.ReadWriteSubTree, mSec);

        // Create a child subkey and a grandchild subkey, 
        // without security.
        RegistryKey rkChild = rk.CreateSubKey("ChildKey", 
            RegistryKeyPermissionCheck.ReadWriteSubTree);
        RegistryKey rkGrandChild = 
            rkChild.CreateSubKey("GrandChildKey", 
                RegistryKeyPermissionCheck.ReadWriteSubTree);

        Show(rk);
        Show(rkChild);
        Show(rkGrandChild);

        rkGrandChild.Close();
        rkChild.Close();
        rk.Close();

        cu.DeleteSubKeyTree(TestKey);
    }

    private static void Show(RegistryKey rk)
    {
        Console.WriteLine(rk.Name);
        ShowSecurity(rk.GetAccessControl());
    }

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

        foreach( RegistryAccessRule 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.RegistryRights);
            Console.WriteLine(" Inheritance: {0}", ar.InheritanceFlags);
            Console.WriteLine(" Propagation: {0}", ar.PropagationFlags);
            Console.WriteLine("   Inherited? {0}", ar.IsInherited);
            Console.WriteLine();
        }
    }
}

/* This code example produces output similar to following:

Current access rules:

        User: TestDomain\TestUser
        Type: Allow
      Rights: SetValue, CreateSubKey, Delete, ReadKey
 Inheritance: ContainerInherit
 Propagation: None
   Inherited? False

        User: TestDomain\TestUser
        Type: Allow
      Rights: ChangePermissions
 Inheritance: ContainerInherit
 Propagation: NoPropagateInherit, InheritOnly
   Inherited? False

HKEY_CURRENT_USER\TestKey3927

Current access rules:

        User: TestDomain\TestUser
        Type: Allow
      Rights: SetValue, CreateSubKey, Delete, ReadKey
 Inheritance: ContainerInherit
 Propagation: None
   Inherited? False

        User: TestDomain\TestUser
        Type: Allow
      Rights: ChangePermissions
 Inheritance: ContainerInherit
 Propagation: NoPropagateInherit, InheritOnly
   Inherited? False

HKEY_CURRENT_USER\TestKey3927\ChildKey

Current access rules:

        User: TestDomain\TestUser
        Type: Allow
      Rights: SetValue, CreateSubKey, Delete, ReadKey
 Inheritance: ContainerInherit
 Propagation: None
   Inherited? True

        User: TestDomain\TestUser
        Type: Allow
      Rights: ChangePermissions
 Inheritance: None
 Propagation: None
   Inherited? True

HKEY_CURRENT_USER\TestKey3927\ChildKey\GrandChildKey

Current access rules:

        User: TestDomain\TestUser
        Type: Allow
      Rights: SetValue, CreateSubKey, Delete, ReadKey
 Inheritance: ContainerInherit
 Propagation: None
   Inherited? True
 */

Option Explicit
Imports System.Security.AccessControl
Imports System.Security.Principal
Imports System.Security
Imports Microsoft.Win32

Public Class Example

    Public Shared Sub Main()

        Const TestKey As String = "TestKey3927"
        Dim cu As RegistryKey = Registry.CurrentUser

        Dim user As String = Environment.UserDomainName _ 
            & "\" & Environment.UserName

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

        ' Add a rule that grants the current user the right
        ' to read and enumerate the name/value pairs in a key, 
        ' to read its access and audit rules, to enumerate
        ' its subkeys, to create subkeys, and to delete the key. 
        ' The rule is inherited by all contained subkeys.
        '
        Dim rule As New RegistryAccessRule(user, _
            RegistryRights.ReadKey Or RegistryRights.WriteKey _
                Or RegistryRights.Delete, _
            InheritanceFlags.ContainerInherit, _
            PropagationFlags.None, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ' Add a rule that allows the current user the right
        ' right to set the name/value pairs in a key. 
        ' This rule is inherited by contained subkeys, but
        ' propagation flags limit it to immediate child 
        ' subkeys.
        rule = New RegistryAccessRule(user, _
            RegistryRights.ChangePermissions, _
            InheritanceFlags.ContainerInherit, _
            PropagationFlags.InheritOnly Or PropagationFlags.NoPropagateInherit, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

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

        ' Create the test key using the security object.
        '
        Dim rk As RegistryKey = cu.CreateSubKey(TestKey, _
            RegistryKeyPermissionCheck.ReadWriteSubTree, _
            mSec)

        ' Create a child subkey and a grandchild subkey, 
        ' without security.
        Dim rkChild As RegistryKey= rk.CreateSubKey("ChildKey", _
            RegistryKeyPermissionCheck.ReadWriteSubTree)
        Dim rkGrandChild As RegistryKey = _
            rkChild.CreateSubKey("GrandChildKey", _
                RegistryKeyPermissionCheck.ReadWriteSubTree)

        Show(rk)
        Show(rkChild)
        Show(rkGrandChild)

        rkGrandChild.Close()
        rkChild.Close()
        rk.Close()

        cu.DeleteSubKeyTree(TestKey)
    End Sub 

    Private Shared Sub Show(ByVal rk As RegistryKey)
        Console.WriteLine(rk.Name)            
        ShowSecurity(rk.GetAccessControl())
    End Sub

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

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

            Console.WriteLine("        User: {0}", ar.IdentityReference)
            Console.WriteLine("        Type: {0}", ar.AccessControlType)
            Console.WriteLine("      Rights: {0}", ar.RegistryRights)
            Console.WriteLine(" Inheritance: {0}", ar.InheritanceFlags)
            Console.WriteLine(" Propagation: {0}", ar.PropagationFlags)
            Console.WriteLine("   Inherited? {0}", ar.IsInherited)
            Console.WriteLine()
        Next

    End Sub
End Class 

'This code example produces output similar to following:
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: SetValue, CreateSubKey, Delete, ReadKey
' Inheritance: ContainerInherit
' Propagation: None
'   Inherited? False
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: ChangePermissions
' Inheritance: ContainerInherit
' Propagation: NoPropagateInherit, InheritOnly
'   Inherited? False
'
'HKEY_CURRENT_USER\TestKey3927
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: SetValue, CreateSubKey, Delete, ReadKey
' Inheritance: ContainerInherit
' Propagation: None
'   Inherited? False
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: ChangePermissions
' Inheritance: ContainerInherit
' Propagation: NoPropagateInherit, InheritOnly
'   Inherited? False
'
'HKEY_CURRENT_USER\TestKey3927\ChildKey
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: SetValue, CreateSubKey, Delete, ReadKey
' Inheritance: ContainerInherit
' Propagation: None
'   Inherited? True
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: ChangePermissions
' Inheritance: None
' Propagation: None
'   Inherited? True
'
'HKEY_CURRENT_USER\TestKey3927\ChildKey\GrandChildKey
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: SetValue, CreateSubKey, Delete, ReadKey
' Inheritance: ContainerInherit
' Propagation: None
'   Inherited? True

Comentarios

La RegistryAccessRule clase es uno de un conjunto de clases que .NET Framework proporciona para administrar la seguridad de control de acceso de Windows en las claves del Registro. Para obtener información general sobre estas clases y su relación con las estructuras de control de acceso subyacentes de Windows, vea RegistrySecurity.

Para obtener una lista de las reglas aplicadas actualmente a una clave del Registro, use el RegistryKey.GetAccessControl método para obtener un RegistrySecurity objeto y, a continuación, use su GetAccessRules método para obtener una colección de RegistryAccessRule objetos .

RegistryAccessRule Los objetos no asignan uno a uno con entradas de control de acceso en la lista de acceso de control discrecional subyacente (DACL). Cuando se obtiene el conjunto de todas las reglas de acceso para una clave del Registro, el conjunto contiene el número mínimo de reglas necesarias actualmente para expresar todas las entradas de control de acceso.

Use RegistryAccessRule objetos para especificar derechos de acceso para permitir o denegar a un usuario o grupo. Un RegistryAccessRule objeto siempre representa el acceso permitido o el acceso denegado, nunca ambos.

Para aplicar una regla a una clave del Registro, use el RegistryKey.GetAccessControl método para obtener el RegistrySecurity objeto . Modifique el RegistrySecurity objeto mediante sus métodos para agregar la regla y, a continuación, use el RegistryKey.SetAccessControl método para volver a adjuntar el objeto de seguridad.

RegistryAccessRule los objetos son inmutables. La seguridad de una clave del Registro se modifica mediante los métodos de la RegistrySecurity clase para agregar o quitar reglas; al hacerlo, se modifican las entradas de control de acceso subyacentes.

Constructores

Propiedades

Métodos

Se aplica a