dynamic engine load

[Selva Nair]

Hi,

On Wed, May 26, 2021 at 9:25 AM Piotr Lobacz <piotr.lobacz at softgent.com> wrote:
>
> Hi all,
> I am trying to write a function which will load dynamic engine for pkcs11. What i intendt to do is not to use engine id pkcs11 but dynamic. The problem is that i get an error for ENGINE_ctrl_cmd_string with MODULE_PATH parameter. My function currently looks like this:
>
>         public void Initialize()
>         {
>             if (null == engine)
>             {
>                 engine = SafeNativeMethods.ENGINE_by_id("dynamic");
>                 if (engine.IsInvalid)
>                 {
>                     throw new InvalidOperationException($"Unable to load dynamic engine");
>                 }
>
>                 if (!File.Exists(EnginePath))
>                 {
>                     throw new InvalidOperationException($"Unable to find engine library path");
>                 }
>
>                 if (1 != SafeNativeMethods.ENGINE_ctrl_cmd_string(engine, "SO_PATH", EnginePath, 0))
>                 {
>                     throw new InvalidOperationException("dynamic: setting so_path <= '{EnginePath}'");
>                 }

At this point you should do the "LOAD" control to get the dynamic
engine shell replaced by pkcs11. Then set the ID and the MODULE_PATH.

So its dynamic --> set SO_PATH --> LOAD and then set all parameters of
the engine that SO_PATH implements.

Selva


Selva