private T GetTokenInformation <T>(TokenInformationClass tokenInformationClass) where T : struct
{
using (SafeLocalAllocHandle handle = GetTokenInformation(this.m_safeTokenHandle, tokenInformationClass))
{
return(handle.Read <T>(0L));
}
}
private static Win32Native.LUID GetLogonAuthId(SafeTokenHandle safeTokenHandle)
{
using (SafeLocalAllocHandle handle = GetTokenInformation(safeTokenHandle, TokenInformationClass.TokenStatistics))
{
return(handle.Read <Win32Native.TOKEN_STATISTICS>(0L).AuthenticationId);
}
}
private static Interop.LUID GetLogonAuthId(SafeAccessTokenHandle safeTokenHandle)
{
using (SafeLocalAllocHandle pStatistics = GetTokenInformation(safeTokenHandle, TokenInformationClass.TokenStatistics))
{
Interop.TOKEN_STATISTICS statistics = pStatistics.Read <Interop.TOKEN_STATISTICS>(0);
return(statistics.AuthenticationId);
}
}
/// <summary>
/// Get a property from the current token
/// </summary>
private T GetTokenInformation <T>(TokenInformationClass tokenInformationClass) where T : struct
{
Debug.Assert(!_safeTokenHandle.IsInvalid && !_safeTokenHandle.IsClosed, "!m_safeTokenHandle.IsInvalid && !m_safeTokenHandle.IsClosed");
using (SafeLocalAllocHandle information = GetTokenInformation(_safeTokenHandle, tokenInformationClass))
{
Debug.Assert(information.ByteLength >= (ulong)Marshal.SizeOf <T>(),
"information.ByteLength >= (ulong)Marshal.SizeOf(typeof(T))");
return(information.Read <T>(0));
}
}
public static IList <X509AlternateName> GetAlternateNames(this X509Certificate certificate,
Oid2 alternateNameExtensionOid)
{
if (alternateNameExtensionOid == null)
{
throw new ArgumentNullException("alternateNameExtensionOid");
}
List <X509AlternateName> alternateNames = new List <X509AlternateName>();
using (SafeCertContextHandle certContext = certificate.GetCertificateContext())
{
// Make sure we have the extension requested
if (X509Native.HasExtension(certContext, alternateNameExtensionOid.Value))
{
// If so, get it from the certificate, and decode it into a buffer
X509Native.CERT_EXTENSION alternateNameExtension =
X509Native.FindExtension(certContext, alternateNameExtensionOid.Value);
using (SafeLocalAllocHandle decodedBuffer = X509Native.DecodeExtension(alternateNameExtension))
{
// This buffer contains CERT_ALT_NAME_INFO which points us at the alternate names we
// were looking for
X509Native.CERT_ALT_NAME_INFO altNameInfo = decodedBuffer.Read <X509Native.CERT_ALT_NAME_INFO>(0);
for (int i = 0; i < altNameInfo.cAltEntry; ++i)
{
unsafe
{
X509Native.CERT_ALT_NAME_ENTRY *pAltNameEntry = (X509Native.CERT_ALT_NAME_ENTRY *)altNameInfo.rgAltEntry;
alternateNames.Add(X509AlternateName.FromAltNameEntry(pAltNameEntry[i]));
}
}
}
}
}
return(alternateNames);
}