ContextFlagsAdapterPal.cs

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namespace System.Net;
 
internal static class ContextFlagsAdapterPal
{
    private readonly struct ContextFlagMapping
    {
        public readonly global::Interop.SspiCli.ContextFlags Win32Flag;
 
        public readonly ContextFlagsPal ContextFlag;
 
        public ContextFlagMapping(global::Interop.SspiCli.ContextFlags win32Flag, ContextFlagsPal contextFlag)
        {
            Win32Flag = win32Flag;
            ContextFlag = contextFlag;
        }
    }
 
    private static readonly ContextFlagMapping[] s_contextFlagMapping = new ContextFlagMapping[22]
    {
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptExtendedError, ContextFlagsPal.AcceptExtendedError),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.InitManualCredValidation, ContextFlagsPal.InitManualCredValidation),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptIntegrity, ContextFlagsPal.AcceptIntegrity),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptStream, ContextFlagsPal.AcceptStream),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AllocateMemory, ContextFlagsPal.AllocateMemory),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AllowMissingBindings, ContextFlagsPal.AllowMissingBindings),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.Confidentiality, ContextFlagsPal.Confidentiality),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.Connection, ContextFlagsPal.Connection),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.Delegate, ContextFlagsPal.Delegate),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.InitExtendedError, ContextFlagsPal.InitExtendedError),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptIntegrity, ContextFlagsPal.AcceptIntegrity),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.InitManualCredValidation, ContextFlagsPal.InitManualCredValidation),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptStream, ContextFlagsPal.AcceptStream),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.AcceptExtendedError, ContextFlagsPal.AcceptExtendedError),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.InitUseSuppliedCreds, ContextFlagsPal.InitUseSuppliedCreds),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.MutualAuth, ContextFlagsPal.MutualAuth),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.ProxyBindings, ContextFlagsPal.ProxyBindings),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.ReplayDetect, ContextFlagsPal.ReplayDetect),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.SequenceDetect, ContextFlagsPal.SequenceDetect),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.UnverifiedTargetName, ContextFlagsPal.UnverifiedTargetName),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.UseSessionKey, ContextFlagsPal.UseSessionKey),
        new ContextFlagMapping(global::Interop.SspiCli.ContextFlags.Zero, ContextFlagsPal.None)
    };
 
    internal static ContextFlagsPal GetContextFlagsPalFromInterop(global::Interop.SspiCli.ContextFlags win32Flags)
    {
        ContextFlagsPal contextFlagsPal = ContextFlagsPal.None;
        ContextFlagMapping[] array = s_contextFlagMapping;
        for (int i = 0; i < array.Length; i++)
        {
            ContextFlagMapping contextFlagMapping = array[i];
            if ((win32Flags & contextFlagMapping.Win32Flag) == contextFlagMapping.Win32Flag)
            {
                contextFlagsPal |= contextFlagMapping.ContextFlag;
            }
        }
        return contextFlagsPal;
    }
 
    internal static global::Interop.SspiCli.ContextFlags GetInteropFromContextFlagsPal(ContextFlagsPal flags)
    {
        global::Interop.SspiCli.ContextFlags contextFlags = global::Interop.SspiCli.ContextFlags.Zero;
        ContextFlagMapping[] array = s_contextFlagMapping;
        for (int i = 0; i < array.Length; i++)
        {
            ContextFlagMapping contextFlagMapping = array[i];
            if ((flags & contextFlagMapping.ContextFlag) == contextFlagMapping.ContextFlag)
            {
                contextFlags |= contextFlagMapping.Win32Flag;
            }
        }
        return contextFlags;
    }
}