WifiConfigManager: Don't reset the userId on user stop

Couple of fixes in user stop handling:
a) Only clear the network data belonging to the user that is stopped.
b) Don't reset the user Id on stop. It will be done in the user switch
handling.

Bug: 65939780
Test: Unit tests
Change-Id: Ia3ab033d893009cfd8019ee27d52a490a8040438

1 files changed, 9 insertions, 2 deletions

diff --git a/service/java/com/android/server/wifi/WifiConfigManager.java b/service/java/com/android/server/wifi/WifiConfigManager.java
index 75b39b261..d9abb94b2 100644
--- a/service/java/com/android/server/wifi/WifiConfigManager.java
+++ b/service/java/com/android/server/wifi/WifiConfigManager.java
@@ -2571,10 +2571,12 @@ public class WifiConfigManager {
      * @param userId The identifier of the user that stopped.
      */
     public void handleUserStop(int userId) {
+        if (mVerboseLoggingEnabled) {
+            Log.v(TAG, "Handling user stop for " + userId);
+        }
         if (userId == mCurrentUserId && mUserManager.isUserUnlockingOrUnlocked(mCurrentUserId)) {
             saveToStore(true);
-            clearInternalData();
-            mCurrentUserId = UserHandle.USER_SYSTEM;
+            clearInternalUserData(mCurrentUserId);
         }
     }
 
@@ -2586,6 +2588,7 @@ public class WifiConfigManager {
      *  - List of deleted ephemeral networks.
      */
     private void clearInternalData() {
+        localLog("clearInternalData: Clearing all internal data");
         mConfiguredNetworks.clear();
         mDeletedEphemeralSSIDs.clear();
         mScanDetailCaches.clear();
@@ -2604,12 +2607,16 @@ public class WifiConfigManager {
      * removed from memory.
      */
     private Set<Integer> clearInternalUserData(int userId) {
+        localLog("clearInternalUserData: Clearing user internal data for " + userId);
         Set<Integer> removedNetworkIds = new HashSet<>();
         // Remove any private networks of the old user before switching the userId.
         for (WifiConfiguration config : getInternalConfiguredNetworks()) {
             if (!config.shared && WifiConfigurationUtil.doesUidBelongToAnyProfile(
                     config.creatorUid, mUserManager.getProfiles(userId))) {
                 removedNetworkIds.add(config.networkId);
+                localLog("clearInternalUserData: removed config."
+                        + " netId=" + config.networkId
+                        + " configKey=" + config.configKey());
                 mConfiguredNetworks.remove(config.networkId);
             }
         }