[sssd PR#570][comment] p11_child: add OpenSSL support

[jhrozek]

URL: https://github.com/SSSD/sssd/pull/570
Title: #570: p11_child: add OpenSSL support

jhrozek commented:
"""
OK, I'm done with the code review. tl;dr the zero timeut is confusing and the commented out code needs to be removed. I'm struggling a bit with testing with Yubikey for some reason, but let me fight with it until tomorrow at least, if I can't figure out everything by myself, I'll ping you for help..
"""

See the full comment at https://github.com/SSSD/sssd/pull/570#issuecomment-388821204