Attributes.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Attributes.cs / 1 / Attributes.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
using  System.Runtime.InteropServices;
 
namespace System.Security 
{
    // DynamicSecurityMethodAttribute: 
    //  Indicates that calling the target method requires space for a security
    //  object to be allocated on the callers stack. This attribute is only ever
    //  set on certain security methods defined within mscorlib.
    [AttributeUsage(AttributeTargets.Method, AllowMultiple = true, Inherited = false )] 
    sealed internal class DynamicSecurityMethodAttribute : System.Attribute
    { 
    } 

    // SuppressUnmanagedCodeSecurityAttribute: 
    //  Indicates that the target P/Invoke method(s) should skip the per-call
    //  security checked for unmanaged code permission.
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class | AttributeTargets.Interface | AttributeTargets.Delegate, AllowMultiple = true, Inherited = false )]
[System.Runtime.InteropServices.ComVisible(true)] 
    sealed public class SuppressUnmanagedCodeSecurityAttribute : System.Attribute
    { 
    } 

    // UnverifiableCodeAttribute: 
    //  Indicates that the target module contains unverifiable code.
    [AttributeUsage(AttributeTargets.Module, AllowMultiple = true, Inherited = false )]
[System.Runtime.InteropServices.ComVisible(true)]
    sealed public class UnverifiableCodeAttribute : System.Attribute 
    {
    } 
 
    // AllowPartiallyTrustedCallersAttribute:
    //  Indicates that the Assembly is secure and can be used by untrusted 
    //  and semitrusted clients
    //  For v.1, this is valid only on Assemblies, but could be expanded to
    //  include Module, Method, class
    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = false, Inherited = false )] 
[System.Runtime.InteropServices.ComVisible(true)]
    sealed public class AllowPartiallyTrustedCallersAttribute : System.Attribute 
    { 
        public AllowPartiallyTrustedCallersAttribute () { }
    } 

    public enum SecurityCriticalScope
    {
    	Explicit = 0, 
		Everything = 0x1
    } 
 
    // SecurityCriticalAttribute
    //  Indicates that the decorated code or assembly performs security critical operations (e.g. Assert, "unsafe", LinkDemand, etc.) 
    //  The attribute can be placed on most targets, except on arguments/return values.
    //  The attribute applies only to the specific target and not to everything underneath it (similar to 'public' qualifier)
    //   i.e. marking an assembly SecurityCritical doesn't imply all types within the assembly are critical,
    //      and similarly marking a type critical doesn't imply all of its members are critical 
    //  For code to perform security critical actions, both the code (e.g. method, field, etc.) and the assembly must be decorated
    //      with the SecurityCriticalAttribute. 
 
	[AttributeUsage(AttributeTargets.Assembly |
    				AttributeTargets.Module | 
    				AttributeTargets.Class |
    				AttributeTargets.Struct |
    				AttributeTargets.Enum |
    				AttributeTargets.Constructor | 
    				AttributeTargets.Method |
    				AttributeTargets.Property | 
    				AttributeTargets.Field | 
    				AttributeTargets.Event |
    				AttributeTargets.Interface  | 
    				AttributeTargets.Delegate,
    	AllowMultiple = false,
    	Inherited = false )]
    sealed public class SecurityCriticalAttribute 	: System.Attribute 
    {
         internal SecurityCriticalScope  _val; 
        public SecurityCriticalAttribute () {} 
	  public SecurityCriticalAttribute(SecurityCriticalScope scope)
 	  	{ 
	  	 	_val = scope;
 	  	}

 	  public SecurityCriticalScope Scope { 
	  	get {
 			return _val; 
	  		} 
	  	}
    } 

    // SecurityTreatAsSafeAttribute:
    // Indicates that the code may contain violations to the security critical rules (e.g. transitions from
    //      critical to non-public transparent, transparent to non-public critical, etc.), has been audited for 
    //      security concerns and is considered security clean.
    // At assembly-scope, all rule checks will be suppressed within the assembly and for calls made against the assembly. 
    // At type-scope, all rule checks will be suppressed for members within the type and for calls made against the type. 
    // At member level (e.g. field and method) the code will be treated as public - i.e. no rule checks for the members.
 
    [AttributeUsage(AttributeTargets.All,
    	AllowMultiple = false,
    	Inherited = false )]
    sealed public class SecurityTreatAsSafeAttribute : System.Attribute 
    {
        public SecurityTreatAsSafeAttribute () { } 
    } 

    // SecurityTransparentAttribute: 
    // Indicates the assembly contains only transparent code.
    // Security critical actions will be restricted or converted into less critical actions. For example,
    // Assert will be restricted, SuppressUnmanagedCode, LinkDemand, unsafe, and unverifiable code will be converted
    // into Full-Demands. 

	[AttributeUsage(AttributeTargets.Assembly, 
 	    AllowMultiple = false, 
	    Inherited = false )]
    sealed public class SecurityTransparentAttribute : System.Attribute 
    {
        public SecurityTransparentAttribute () {}
    }
}

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