Chris Coulson
81795d8826
Currently systemd-tpm2-setup will fail if NvPCR initialization doesn't succeed, either because the currently booted UKI carries no PCR public key, or it carries no appropriate signed policy (one with the "initrd" policy reference). In addition to this, systemd-pcrextend will subsequently fail because it also fails to initialize the NvPCR it is requested to extend. This makes systemd-tpm2-setup return EX_CONFIG in these scenarios, with this marked as a successful exit status in the service unit file. In addition to this, systemd-pcrextend is updated to only attempt NvPCR initialization from the initrd (the only place it will succceed), and when called with --graceful, to not exit with an error code if the target NvPCR is uninitialized, and can't be initialized because of a missing PCR public key or appropriate signed policy. When called via Varlink, it will return the existing "NoSuchNvPCR" error. Note that I also removed some NvPCR initialization specific exit status codes from systemd-tpm2-setup.service.in, as these can only be returned via systemd-tpm2-setup-early.service. This should address the issues in https://github.com/systemd/systemd/issues/43848. (cherry picked from commit e846bbad04d87e58ba9c3e30d8a1087141691715)
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