1 files changed, 22 insertions, 1 deletions
diff --git a/services/core/java/com/android/server/vcn/routeselection/IpSecPacketLossDetector.java b/services/core/java/com/android/server/vcn/routeselection/IpSecPacketLossDetector.java
index 36192537493a..474253223628 100644
--- a/services/core/java/com/android/server/vcn/routeselection/IpSecPacketLossDetector.java
+++ b/services/core/java/com/android/server/vcn/routeselection/IpSecPacketLossDetector.java
@@ -115,6 +115,10 @@ public class IpSecPacketLossDetector extends NetworkMetricMonitor {
     // validation failure.
     private static final int IPSEC_PACKET_LOSS_PERCENT_THRESHOLD_DEFAULT = 12;
 
+    /** Carriers can disable the detector by setting the threshold to -1 */
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
+    static final int IPSEC_PACKET_LOSS_PERCENT_THRESHOLD_DISABLE_DETECTOR = -1;
+
     private static final int POLL_IPSEC_STATE_INTERVAL_SECONDS_DEFAULT = 20;
 
     // By default, there's no maximum limit enforced
@@ -271,7 +275,10 @@ public class IpSecPacketLossDetector extends NetworkMetricMonitor {
         // When multiple parallel inbound transforms are created, NetworkMetricMonitor will be
         // enabled on the last one as a sample
         mInboundTransform = inboundTransform;
-        start();
+
+        if (!Flags.allowDisableIpsecLossDetector() || canStart()) {
+            start();
+        }
     }
 
     @Override
@@ -284,6 +291,14 @@ public class IpSecPacketLossDetector extends NetworkMetricMonitor {
             mPacketLossRatePercentThreshold = getPacketLossRatePercentThreshold(carrierConfig);
             mMaxSeqNumIncreasePerSecond = getMaxSeqNumIncreasePerSecond(carrierConfig);
         }
+
+        if (Flags.allowDisableIpsecLossDetector() && canStart() != isStarted()) {
+            if (canStart()) {
+                start();
+            } else {
+                stop();
+            }
+        }
     }
 
     @Override
@@ -298,6 +313,12 @@ public class IpSecPacketLossDetector extends NetworkMetricMonitor {
         mHandler.postDelayed(new PollIpSecStateRunnable(), mCancellationToken, 0L);
     }
 
+    private boolean canStart() {
+        return mInboundTransform != null
+                && mPacketLossRatePercentThreshold
+                        != IPSEC_PACKET_LOSS_PERCENT_THRESHOLD_DISABLE_DETECTOR;
+    }
+
     @Override
     protected void start() {
         super.start();