[Pcsclite-muscle] Delegate WinSCard calls to another library (for a RDP server for example)

[Ludovic Rousseau]

Hello,

I have not received many contributions.

Some people added comments in https://github.com/LudovicRousseau/PCSC/issues/161
Thank you for that.

If you think that adding support of LIBPCSCLITE_DELEGATE is a bad idea
then please explain.
I have not yet added the code in the official pcsc-lite.
I think it will help the support of smart cards by RDP servers running
on Unix. And that is not a (new) security issue.
But you may think differently.

Bye

Le ven. 15 mars 2024 à 22:59, Ludovic Rousseau
<ludovic.rousseau at gmail.com> a écrit :
>
> Hello,
>
> I am working on a new idea for pcsc-lite: Delegate WinSCard calls to
> another library
>
> The application will call SCardEstablishContext() (for example) as
> before but the call is not directly sent to libpcsclite.so.1. Instead
> we have a intermediate library that can redirect the call somewhere
> else.
>
> Use cases:
> - the other library can be libpcscspy.0.dylib to generate a debug
> trace (simpler use for
> https://blog.apdu.fr/posts/2022/06/pcsc-api-spy-update/)
> - the other library can be libpcsclite-xrdp.so.0 to redirect the PC/SC
> calls to the RDP server and then to the RDP client
> - something else. I am interested in reading your other ideas
>
> The redirection is done by defining the environment variable
> LIBPCSCLITE_DELEGATE before running the PC/SC application.
>
> To avoid security problems the variable LIBPCSCLITE_DELEGATE is
> ignored if the process is run as root. The default library (real
> libpcsclite) is used instead.
>
> You can have more details and a discussion in
> https://github.com/LudovicRousseau/PCSC/issues/161
>
> What do you think?
> Should I change something?
> Ideas? comments?
>
> Thanks
>
> --
>  Dr. Ludovic Rousseau



-- 
 Dr. Ludovic Rousseau