WifiConfigStore初始化读取
1、StoreData创建并注册
packages/modules/Wifi/service/java/com/android/server/wifi/WifiConfigManager.java
mWifiConfigStore.registerStoreData(mNetworkListSharedStoreData)
mWifiConfigStore.registerStoreData(mNetworkListUserStoreData)
mWifiConfigStore.registerStoreData(mRandomizedMacStoreData)
mWifiConfigStore.registerStoreData(mConnectedFreqStoreData)
packages/modules/Wifi/service/java/com/android/server/wifi/WifiNetworkSuggestionsManager.java
wifiConfigStore.registerStoreData( wifiInjector.makeNetworkSuggestionStoreData(new NetworkSuggestionDataSource()))
2、WifiConfigStore读取
2.1 文件读取流程
1》当 SystemService.PHASE_SYSTEM_SERVICES_READY 系统服务准备，mImpl.checkAndStartWifi()通过WifiConfigManager.java#loadFromStore读取mWifiConfigStore.read()
/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
/data/misc/apexdata/com.android.wifi/WifiConfigStoreSoftAp.xml
2》当onUserUnlocking用户锁定，mImpl.handleUserUnlock通过WifiConfigManager.java#handleUserUnlockOrSwitch读取mWifiConfigStore.switchUserStoresAndRead(userStoreFiles)
/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStoreNetworkSuggestions.xml
packages/modules/Wifi/service/java/com/android/server/wifi/WifiService.java
packages/modules/Wifi/service/java/com/android/server/wifi/WifiServiceImpl.java
@Override
public void onBootPhase(int phase) {
if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) {
mImpl.checkAndStartWifi();
} else if (phase == SystemService.PHASE_BOOT_COMPLETED) {
mImpl.handleBootCompleted();
}
}
@Override
public void onUserSwitching(TargetUser from, TargetUser to) {
mImpl.handleUserSwitch(to.getUserHandle().getIdentifier());
}
@Override
public void onUserUnlocking(TargetUser user) {
mImpl.handleUserUnlock(user.getUserHandle().getIdentifier());
}
packages/modules/Wifi/service/java/com/android/server/wifi/WifiConfigManager.java
public boolean loadFromStore() {
// If the user unlock comes in before we load from store, which means the user store have
// not been setup yet for the current user. Setup the user store before the read so that
// configurations for the current user will also being loaded.
if (mDeferredUserUnlockRead) {
Log.i(TAG, "Handling user unlock before loading from store.");
List<WifiConfigStore.StoreFile> userStoreFiles =
WifiConfigStore.createUserFiles(
mCurrentUserId, mFrameworkFacade.isNiapModeOn(mContext));
if (userStoreFiles == null) {
Log.wtf(TAG, "Failed to create user store files");
return false;
}
mWifiConfigStore.setUserStores(userStoreFiles);
mDeferredUserUnlockRead = false;
}
try {
mWifiConfigStore.read();
} catch (IOException | IllegalStateException e) {
Log.wtf(TAG, "Reading from new store failed. All saved networks are lost!", e);
return handleConfigStoreFailure(false);
} catch (XmlPullParserException e) {
Log.wtf(TAG, "XML deserialization of store failed. All saved networks are lost!", e);
return handleConfigStoreFailure(false);
}
loadInternalData(mNetworkListSharedStoreData.getConfigurations(),
mNetworkListUserStoreData.getConfigurations(),
mRandomizedMacStoreData.getMacMapping(),
mConnectedFreqStoreData.getFreqList());
return true;
}
private void handleUserUnlockOrSwitch(int userId) {
if (mVerboseLoggingEnabled) {
Log.v(TAG, "Loading from store after user switch/unlock for " + userId);
}
// Switch out the user store file.
if (loadFromUserStoreAfterUnlockOrSwitch(userId)) {
saveToStore(true);
mPendingUnlockStoreRead = false;
}
}
private boolean loadFromUserStoreAfterUnlockOrSwitch(int userId) {
try {
List<WifiConfigStore.StoreFile> userStoreFiles =
WifiConfigStore.createUserFiles(
userId, mFrameworkFacade.isNiapModeOn(mContext));
if (userStoreFiles == null) {
Log.e(TAG, "Failed to create user store files");
return false;
}
mWifiConfigStore.switchUserStoresAndRead(userStoreFiles);
} catch (IOException | IllegalStateException e) {
Log.wtf(TAG, "Reading from new store failed. All saved private networks are lost!", e);
return handleConfigStoreFailure(true);
} catch (XmlPullParserException e) {
Log.wtf(TAG, "XML deserialization of store failed. All saved private networks are "
+ "lost!", e);
return handleConfigStoreFailure(true);
}
loadInternalDataFromUserStore(mNetworkListUserStoreData.getConfigurations());
return true;
}
2.2 时序图
2.3 日志
02-06 17:21:42.574 7067 7238 E WifiConfigManager: xhbruce loadFromStore
02-06 17:21:42.581 7067 7238 E WifiConfigStore: xhbruce readFromSharedStoreFiles : sharedStoreFile=/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:42.593 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.WifiCarrierInfoStoreManagerData@3b32c54:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.613 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.NetworkListSharedStoreData@28b6069:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.615 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.RandomizedMacStoreData@6ee3aee:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.615 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.ConnectedFreqManager$ConnectedFreqStoreData@b77cb8f:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.616 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.WifiSettingsConfigStore$StoreData@4655008:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.616 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.hotspot2.PasspointConfigSharedStoreData@89eb9c6:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@7c3a7fd
02-06 17:21:42.616 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeDatasInvoked=[com.android.server.wifi.RandomizedMacStoreData@6ee3aee, com.android.server.wifi.NetworkListSharedStoreData@28b6069, com.android.server.wifi.WifiCarrierInfoStoreManagerData@3b32c54, com.android.server.wifi.ConnectedFreqManager$ConnectedFreqStoreData@b77cb8f, com.android.server.wifi.hotspot2.PasspointConfigSharedStoreData@89eb9c6, com.android.server.wifi.WifiSettingsConfigStore$StoreData@4655008]
02-06 17:21:42.617 7067 7238 E WifiConfigStore: xhbruce readFromSharedStoreFiles : sharedStoreFile=/data/misc/apexdata/com.android.wifi/WifiConfigStoreSoftAp.xml
02-06 17:21:42.626 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.SoftApStoreData@91a0f05:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@38a1b5a
02-06 17:21:42.626 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeDatasInvoked=[com.android.server.wifi.SoftApStoreData@91a0f05]
02-06 17:21:42.627 7067 7238 D WifiConfigStore: Reading from all stores completed in 50 ms.
02-06 17:21:42.627 7067 7238 E WifiConfigManager: xhbruce loadFromStore : mNetworkListSharedStoreData=[- DSBLE ID: -1 SSID: "guest_5G" PROVIDER-NAME: null BSSID: null FQDN: null HOME-PROVIDER-NETWORK: false PRIO: 0 HIDDEN: false PMF: false CarrierId: -1 SubscriptionId: -1 SubscriptionGroup: null
02-06 17:21:42.635 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:45.963 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:45.986 7067 7238 D WifiConfigStore: Writing to stores completed in 18 ms.
02-06 17:21:48.971 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:48.989 7067 7238 D WifiConfigStore: Writing to stores completed in 17 ms.
02-06 17:21:48.996 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:49.000 7067 7238 D WifiConfigStore: Writing to stores completed in 4 ms.
02-06 17:21:51.863 7067 7238 V WifiConfigManager: Handling user unlock for 0
02-06 17:21:51.868 7067 7238 V WifiConfigManager: Loading from store after user switch/unlock for 0
02-06 17:21:51.905 7067 7238 E WifiConfigStore: xhbruce readFromUserStoreFiles : userStoreFile=/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:51.915 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.ImsiPrivacyProtectionExemptionStoreData@eeb7cd8:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.936 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.NetworkListUserStoreData@2bc166d:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.959 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.hotspot2.PasspointConfigUserStoreData@378db33:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.970 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.SsidSetStoreData@b302a1c:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.970 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.NetworkRequestStoreData@dfea625:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.971 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.WakeupConfigStoreData@1aa33fa:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@15e2831
02-06 17:21:51.971 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeDatasInvoked=[com.android.server.wifi.WakeupConfigStoreData@1aa33fa, com.android.server.wifi.NetworkListUserStoreData@2bc166d, com.android.server.wifi.ImsiPrivacyProtectionExemptionStoreData@eeb7cd8, com.android.server.wifi.hotspot2.PasspointConfigUserStoreData@378db33, com.android.server.wifi.NetworkRequestStoreData@dfea625, com.android.server.wifi.SsidSetStoreData@b302a1c]
02-06 17:21:51.971 7067 7238 E WifiConfigStore: xhbruce readFromUserStoreFiles : userStoreFile=/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStoreNetworkSuggestions.xml
02-06 17:21:51.976 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeData=com.android.server.wifi.NetworkSuggestionStoreData@69c74dd:storeFile:com.android.server.wifi.WifiConfigStore$StoreFile@c274852
02-06 17:21:51.982 7067 7238 E WifiConfigStore: xhbruce deserializeData : storeDatasInvoked=[com.android.server.wifi.NetworkSuggestionStoreData@69c74dd]
02-06 17:21:51.982 7067 7238 D WifiConfigStore: Reading from user stores completed in 98 ms.
02-06 17:21:51.999 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.020 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.084 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStoreNetworkSuggestions.xml
02-06 17:21:52.178 7067 7238 D WifiConfigStore: Writing to stores completed in 21 ms.
02-06 17:21:52.332 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.357 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.362 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStoreNetworkSuggestions.xml
02-06 17:21:52.379 7067 7238 D WifiConfigStore: Writing to stores completed in 17 ms.
02-06 17:21:52.386 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.401 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:52.419 7067 7238 D WifiConfigStore: Writing to stores completed in 18 ms.
02-06 17:21:54.247 7067 7238 E WifiConfigStore: xhbruce write :sharedStoreFile:/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
02-06 17:21:54.247 7067 7238 E WifiConfigStore: xhbruce write :userStoreFile:/data/misc_ce/0/apexdata/com.android.wifi/WifiConfigStore.xml
