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Refactor enforced/expected PCRs (#553)

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* Merge enforced and expected measurements

* Update measurement generation to new format

* Write expected measurements hex encoded by default

* Allow hex or base64 encoded expected measurements

* Allow hex or base64 encoded clusterID

* Allow security upgrades to warnOnly flag

* Upload signed measurements in JSON format

* Fetch measurements either from JSON or YAML

* Use yaml.v3 instead of yaml.v2

* Error on invalid enforced selection

* Add placeholder measurements to config

* Update e2e test to new measurement format

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
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Daniel Weiße 2022-11-24 10:57:58 +01:00 • committed by GitHub
parent 8ce954e012
commit f8001efbc0
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46 changed files with 1180 additions and 801 deletions
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7
cli/internal/cloudcmd/upgrade.go
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@ -112,6 +112,13 @@ func (u *Upgrader) updateMeasurements(ctx context.Context, newMeasurements measu
return nil
}
// don't allow potential security downgrades by setting the warnOnly flag to true
for k, newM := range newMeasurements {
if currentM, ok := currentMeasurements[k]; ok && !currentM.WarnOnly && newM.WarnOnly {
return fmt.Errorf("setting enforced measurement %d to warn only: not allowed", k)
}
}
// backup of previous measurements
existingConf.Data["oldMeasurements"] = existingConf.Data[constants.MeasurementsFilename]