This code seems to not be used anywhere at all, so let's drop it.
Follow up for ba8d00e859
Follow up for 85686b37b0
Follow up for aff853f8ea
Follow up for 36dad381a2
This finishes the implementation started in commit
1f895adac2 ("cryptsetup: add libcryptsetup TPM2
PIN support").
Note that the previous implementation took a shortcut by returning EOPNOTSUPP
instead of the correct ENOANO as per the cryptsetup documentation. This meant
that systemd-cryptsetup fell back to the non-plugin implementation in order to
ask for the PIN. Since this does not happen any more when returning ENOANO, we
need to ask for the PIN in attach_luks2_by_tpm2_via_plugin() instead like
attach_luks2_by_fido2_via_plugin() does.
Add support for systemd-tpm2 based LUKS2 device activation
via libcryptsetup plugin. This make the feature (tpm2 sealed
LUKS2 keyslot passphrase) usable from both systemd utilities
and cryptsetup cli.
The feature is configured via -Dlibcryptsetup-plugins combo
with default value set to 'auto'. It get's enabled automatically
when cryptsetup 2.4.0 or later is installed in build system.
Daan De Meyer
Lennart Poettering
Jonas Witschel
Ondrej Kozina