MAC randomization SSID hotlist support

Reads from DeviceConfig and parses a comma separated of SSIDs.

Bug: 144172117
Test: atest FrameworksWifiTests
Test: Manually tested on device
Change-Id: I53b15e884ecba377277eac81f9e3ca86474f5c13
Merged-In: Ie42ce853810aa5dfd4eef89dff281740dafaf3be
(cherry picked from a522b345fa15716a21fd9edcf523cf3c1331dd94)

1 files changed, 21 insertions, 0 deletions

diff --git a/service/java/com/android/server/wifi/DeviceConfigFacade.java b/service/java/com/android/server/wifi/DeviceConfigFacade.java
index a9889f424..25cc2f72d 100644
--- a/service/java/com/android/server/wifi/DeviceConfigFacade.java
+++ b/service/java/com/android/server/wifi/DeviceConfigFacade.java
@@ -17,7 +17,9 @@
 package com.android.server.wifi;
 
 import android.provider.DeviceConfig;
+import android.util.ArraySet;
 
+import java.util.Set;
 import java.util.concurrent.Executor;
 import java.util.concurrent.TimeUnit;
 
@@ -105,4 +107,23 @@ public class DeviceConfigFacade {
         return DeviceConfig.getInt(NAMESPACE, "data_stall_cca_level_thr",
                 DEFAULT_DATA_STALL_CCA_LEVEL_THR);
     }
+
+    /**
+     * Gets the Set of SSIDs in the flaky SSID hotlist.
+     */
+    public Set<String> getRandomizationFlakySsidHotlist() {
+        String ssidHotlist = DeviceConfig.getString(NAMESPACE,
+                "randomization_flaky_ssid_hotlist", "");
+        Set<String> result = new ArraySet<String>();
+        String[] ssidHotlistArray = ssidHotlist.split(",");
+        for (int i = 0; i < ssidHotlistArray.length; i++) {
+            String cur = ssidHotlistArray[i];
+            if (cur.length() == 0) {
+                continue;
+            }
+            // Make sure the SSIDs are quoted. Server side should not quote ssids.
+            result.add("\"" + cur + "\"");
+        }
+        return result;
+    }
 }