PipeAccessRule.cs

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using System.Security.AccessControl;
using System.Security.Principal;
 
namespace System.IO.Pipes;
 
public sealed class PipeAccessRule : AccessRule
{
    public PipeAccessRights PipeAccessRights => RightsFromAccessMask(base.AccessMask);
 
    public PipeAccessRule(string identity, PipeAccessRights rights, AccessControlType type)
        : this(new NTAccount(identity), AccessMaskFromRights(rights, type), isInherited: false, type)
    {
    }
 
    public PipeAccessRule(IdentityReference identity, PipeAccessRights rights, AccessControlType type)
        : this(identity, AccessMaskFromRights(rights, type), isInherited: false, type)
    {
    }
 
    internal PipeAccessRule(IdentityReference identity, int accessMask, bool isInherited, AccessControlType type)
        : base(identity, accessMask, isInherited, InheritanceFlags.None, PropagationFlags.None, type)
    {
    }
 
    internal static int AccessMaskFromRights(PipeAccessRights rights, AccessControlType controlType)
    {
        if (rights < (PipeAccessRights)0 || rights > (PipeAccessRights.FullControl | PipeAccessRights.AccessSystemSecurity))
        {
            throw new ArgumentOutOfRangeException("rights", System.SR.ArgumentOutOfRange_NeedValidPipeAccessRights);
        }
        switch (controlType)
        {
        case AccessControlType.Allow:
            rights |= PipeAccessRights.Synchronize;
            break;
        case AccessControlType.Deny:
            if (rights != PipeAccessRights.FullControl)
            {
                rights &= ~PipeAccessRights.Synchronize;
            }
            break;
        }
        return (int)rights;
    }
 
    internal static PipeAccessRights RightsFromAccessMask(int accessMask)
    {
        return (PipeAccessRights)accessMask;
    }
}