libdl.so problems on Ubuntu 24.04

[Jakub1Cieslak]

I wrote an app using the Pkcs11Interop library and am currently trying to run it on Ubuntu 24.04. When calling HighLevelAPI.Factories.Pkcs11LibraryFactory.LoadPkcs11Library(), I am getting this error:

From what I've been able to gather, this is an issue in Ubuntu versions past 20, as libdl.so is no longer supported in favour of libdl.so.2. Creating a symlink so that the latter "impersonates" the former did not work for me. Is there any workaround for this, or does the library simply not support newer Ubuntu versions?

[jariq]

You need to map libdl to libdl.so.2 in your application by using DllImportResolver delegate with NativeLibrary.SetDllImportResolver method. Sample can be seen in #168 (comment) or in Pkcs11LoggerTests project. More detailed explanation can be seen in #208 (comment).