[Bug 1967632] Re: [snap] apparmor denied when trying to load pkcs11 module for smart card authentication

[Marco Trevisan (Treviño)]

I was trying today to get one of the smartcards I have to work in the
snap setup, sadly I had not the time to reverse engineer it to make it
supported by OpenSC, so I had to rely on the provided closed binary (one
of those bit4id)...

The good thing of those it's that they're still generally quite simple
p11k libraries with no many dependencies, so in my case it was just
enough to move the library in a place the snap can read, so basically
your $HOME/snap/firefox/common

Thus, basically I could just copy the libbit4xpki.so there (no need to
install that in the host, in my case I had done it already):

 cp /usr/lib/libbit4xpki.so $HOME/snap/firefox/common # source location
may differ

Then in firefox just use /home/$USER/snap/firefox/common/libbit4xpki.so
in firefox settings (replace $USER with your user name, of course) and
most of times it should just work.

Ideally if the lib has other dependencies (`ldd` it), copy them there
too (it may not work though, depends on how firefox loads it).

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https://bugs.launchpad.net/bugs/1967632

Title:
  [snap] apparmor denied when trying to load pkcs11 module for smart
  card authentication

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