MemoryMappedFileSecurity.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / IO / MemoryMappedFiles / MemoryMappedFileSecurity.cs / 1305376 / MemoryMappedFileSecurity.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:   MemoryMappedFileSecurity 
**
** Purpose: Managed ACL wrapper for MemoryMappedFiles. 
**
** Date:  February 7, 2007
**
===========================================================*/ 

using System; 
using System.Runtime.InteropServices; 
using System.Security.AccessControl;
using System.Security.Permissions; 
using System.Security.Principal;
using Microsoft.Win32;
using Microsoft.Win32.SafeHandles;
 
namespace System.IO.MemoryMappedFiles
{ 
    [Flags] 
    public enum MemoryMappedFileRights
    { 
        // These correspond to win32 FILE_MAP_XXX constants

        // No None field - An ACE with the value 0 cannot grant nor deny.
        CopyOnWrite                  = 0x000001, 
        Write                        = 0x000002,
        Read                         = 0x000004, 
        Execute                      = 0x000008, 

        Delete                       = 0x010000, 
        ReadPermissions              = 0x020000,
        ChangePermissions            = 0x040000,
        TakeOwnership                = 0x080000,
        //Synchronize                = Not supported by memory mapped files 

        ReadWrite                    = Read | Write, 
        ReadExecute                  = Read | Execute, 
        ReadWriteExecute             = Read | Write | Execute,
 
        FullControl                  = CopyOnWrite | Read | Write | Execute | Delete |
                                       ReadPermissions | ChangePermissions | TakeOwnership,

        AccessSystemSecurity         = 0x01000000, // Allow changes to SACL 
    }
 
    public class MemoryMappedFileSecurity : ObjectSecurity 
    {
        public MemoryMappedFileSecurity() 
            : base(false, ResourceType.KernelObject)
        { }

        [System.Security.SecuritySafeCritical] 
        internal MemoryMappedFileSecurity(SafeMemoryMappedFileHandle safeHandle, AccessControlSections includeSections )
            : base(false, ResourceType.KernelObject, safeHandle, includeSections) 
        { } 

        [System.Security.SecuritySafeCritical] 
        internal void PersistHandle(SafeHandle handle) {
            Persist(handle);
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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