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

[Nathan Teodosio]

** Description changed:

  Opensc-pkcs11
  -------------
  
  The opensc-pkcs11 module is now loadable in Firefox.
+ 
+ First connect the PCSCD interface:
+ 
+   snap connect firefox:pcscd
  
  To load the module, write this path in Settings > Cryptographic modules
  > Load:
  
    /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so
  
  The file picker messes with the path, do NOT use it!
  
  Original report
  ---------------
  
  I use a smart card to access government sites. I have that working in
  firefox and chrome on ubuntu impish, and gave jammy a try, but there
  firefox won't load the library, giving me a generic error.
  
  dmesg, however, shows this apparmor denied message:
  
  [sáb abr  2 17:32:27 2022] audit: type=1400 audit(1648931547.646:115):
  apparmor="DENIED" operation="file_mmap" profile="snap.firefox.firefox"
  name="/run/user/1000/doc/e0bac853/libaetpkss.so.3.5.4112" pid=3680
  comm="firefox" requested_mask="m" denied_mask="m" fsuid=1000 ouid=0
  
  Note also the path, that's not what I typed into the firefox dialog box.
  I have the .so copied to /usr/lib/x86_64-linux-
  gnu/libaetpkss.so.3.5.4112, and that's what I typed in when prompted for
  its path by firefox.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: firefox 1:1snap1-0ubuntu2
  ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
  Uname: Linux 5.15.0-23-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu80
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr  2 17:34:09 2022
  InstallationDate: Installed on 2022-03-20 (13 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220319)
  Snap.Changes: no changes found
  SourcePackage: firefox
  UpgradeStatus: No upgrade log present (probably fresh install)

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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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