internal static ExportedSecurityContext ExportContext(SecHandle context, SecPkgContextExportFlags export_flags, string package, bool client)
{
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
SecBuffer buffer = new SecBuffer()
{
BufferType = SecurityBufferType.Empty
};
try
{
SecurityNativeMethods.ExportSecurityContext(context, export_flags,
buffer, out SafeKernelObjectHandle token).CheckResult();
return(new ExportedSecurityContext(package, buffer.ToArray(), !token.IsInvalid ? NtToken.FromHandle(token) : null, client));
}
finally
{
if (buffer.pvBuffer != IntPtr.Zero)
{
SecurityNativeMethods.FreeContextBuffer(buffer.pvBuffer);
}
}
}
internal override void FromBuffer(SecBuffer buffer)
{
if (Type.HasFlagSet(SecurityBufferType.ReadOnly | SecurityBufferType.ReadOnlyWithChecksum))
{
return;
}
_array = new ArraySegment <byte>(buffer.ToArray());
}
internal static ExportedSecurityContext ExportContext(SecHandle context, SecPkgContextExportFlags export_flags, string package)
{
using (SecBuffer buffer = new SecBuffer(SecurityBufferType.Empty, 64 * 1024))
{
SecurityNativeMethods.ExportSecurityContext(context, SecPkgContextExportFlags.None,
buffer, out SafeKernelObjectHandle token).CheckResult();
return(new ExportedSecurityContext(package, buffer.ToArray(), NtToken.FromHandle(token)));
}
}
internal override void FromBuffer(SecBuffer buffer)
{
_array = buffer.ToArray();
_size = _array.Length;
_type = buffer.BufferType;
}