Lennart Poettering
39d08de81b
Introduce an EnrollContext structure that carries everything the enrollment and unlocking helpers need, and route all enroll_*()/load_volume_key_*()/ wipe_slots() calls through it. The command line still populates the existing arg_* globals as before; once parsing is complete they are copied into a self-contained EnrollContext (which owns its strings/arrays) and the rest of the code only ever reads from the context. This is preparation for the upcoming varlinkification of systemd-cryptenroll: a Varlink dispatcher (and later an interactive first-boot wizard) can populate the very same EnrollContext without going through the arg_* parsing layer. To support non-interactive (e.g. Varlink) callers, the context carries an 'interactive' flag: when false, every credential prompt is disabled and the helpers fail with -ENOPKG (the established "querying disabled via headless" code) instead of blocking on a tty. Passwords, FIDO2 PINs and PKCS#11 PINs are all covered, and an optional FIDO2 PIN can be supplied directly via the context. enroll_recovery() additionally grows a quiet mode that returns the recovery key instead of printing it. This also adds one new field to EnrollContext which didn't exist before: the unlock_password is useful for the Varlink hookup later. No change in command line behaviour.
System and Service Manager
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