mirror of
https://github.com/systemd/systemd.git
synced 2025-01-23 02:04:32 +03:00
6c51b49ce0
Let's introduce a common implementation of a function that checks whether we are booted on a kernel with systemd-stub that has TPM PCR measurements enabled. Do our own userspace measurements only if we detect that. PCRs are scarce and most likely there are projects which already make use of them in other ways. Hence, instead of blindly stepping into their territory let's conditionalize things so that people have to explicitly buy into our PCR assignments before we start measuring things into them. Specifically bind everything to an UKI that reported measurements. This was previously already implemented in systemd-pcrphase, but with this change we expand this to all tools that process PCR measurement settings. The env var to override the check is renamed to SYSTEMD_FORCE_MEASURE, to make it more generic (since we'll use it at multiple places now). This is not a compat break, since the original env var for that was not included in any stable release yet.