update_engine: Send UMA stats about kernel key versions
Adding the following UMA stats:
- UpdateEngine.KernelKey.MinVersion: Minimum kernel key version
already set in the TPM.
- UpdateEngine.KernelKey.MaxRollforwardVersion: Maximum kernel key
rollforward version set by update_engine.
- UpdateEngine.KernelKey.MaxRollforwardSetSuccess: Whether setting
the maximum kernely key rollforward version succeeded.
Chromium CL of the new histograms: crrev.com/c/1078750
BUG=chromium:843622
TEST='cros_run_unit_tests --board=caroline --packages update_engine'
Change-Id: I14192b5ff9c07f8a003e0589450202f488cccc01
Reviewed-on: https://chromium-review.googlesource.com/1078968
Commit-Ready: Zentaro Kavanagh <zentaro@chromium.org>
Tested-by: Zentaro Kavanagh <zentaro@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
diff --git a/metrics_reporter_omaha.cc b/metrics_reporter_omaha.cc
index 0a2b674..5e14cca 100644
--- a/metrics_reporter_omaha.cc
+++ b/metrics_reporter_omaha.cc
@@ -116,6 +116,13 @@
const char kMetricCertificateCheckDownload[] =
"UpdateEngine.CertificateCheck.Download";
+// UpdateEngine.KernelKey.* metrics.
+const char kMetricKernelMinVersion[] = "UpdateEngine.KernelKey.MinVersion";
+const char kMetricKernelMaxRollforwardVersion[] =
+ "UpdateEngine.KernelKey.MaxRollforwardVersion";
+const char kMetricKernelMaxRollforwardSetSuccess[] =
+ "UpdateEngine.KernelKey.MaxRollforwardSetSuccess";
+
// UpdateEngine.* metrics.
const char kMetricFailedUpdateCount[] = "UpdateEngine.FailedUpdateCount";
const char kMetricInstallDateProvisioningSource[] =
@@ -577,4 +584,25 @@
static_cast<int>(ErrorCode::kUmaReportedMax));
}
+void MetricsReporterOmaha::ReportKeyVersionMetrics(
+ int kernel_min_version,
+ int kernel_max_rollforward_version,
+ bool kernel_max_rollforward_success) {
+ int value = kernel_min_version;
+ string metric = metrics::kMetricKernelMinVersion;
+ LOG(INFO) << "Sending " << value << " for metric " << metric;
+ metrics_lib_->SendSparseToUMA(metric, value);
+
+ value = kernel_max_rollforward_version;
+ metric = metrics::kMetricKernelMaxRollforwardVersion;
+ LOG(INFO) << "Sending " << value << " for metric " << metric;
+ metrics_lib_->SendSparseToUMA(metric, value);
+
+ bool bool_value = kernel_max_rollforward_success;
+ metric = metrics::kMetricKernelMaxRollforwardSetSuccess;
+ LOG(INFO) << "Sending " << bool_value << " for metric " << metric
+ << " (bool)";
+ metrics_lib_->SendBoolToUMA(metric, bool_value);
+}
+
} // namespace chromeos_update_engine