/* * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.server.wifi; import android.app.AppGlobals; import android.app.admin.DeviceAdminInfo; import android.app.admin.DevicePolicyManagerInternal; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.net.IpConfiguration; import android.net.IpConfiguration.IpAssignment; import android.net.IpConfiguration.ProxySettings; import android.net.NetworkInfo.DetailedState; import android.net.ProxyInfo; import android.net.StaticIpConfiguration; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiConfiguration.KeyMgmt; import android.net.wifi.WifiConfiguration.Status; import android.net.wifi.WifiEnterpriseConfig; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.net.wifi.WifiSsid; import android.net.wifi.WpsInfo; import android.net.wifi.WpsResult; import android.os.Environment; import android.os.FileObserver; import android.os.Process; import android.os.RemoteException; import android.os.SystemClock; import android.os.UserHandle; import android.provider.Settings; import android.security.Credentials; import android.security.KeyChain; import android.security.KeyStore; import android.text.TextUtils; import android.util.LocalLog; import android.util.Log; import android.util.SparseArray; import com.android.server.LocalServices; import com.android.internal.R; import com.android.server.net.DelayedDiskWrite; import com.android.server.net.IpConfigStore; import com.android.server.wifi.anqp.ANQPElement; import com.android.server.wifi.anqp.Constants; import com.android.server.wifi.hotspot2.ANQPData; import com.android.server.wifi.hotspot2.AnqpCache; import com.android.server.wifi.hotspot2.NetworkDetail; import com.android.server.wifi.hotspot2.PasspointMatch; import com.android.server.wifi.hotspot2.SupplicantBridge; import com.android.server.wifi.hotspot2.Utils; import com.android.server.wifi.hotspot2.omadm.MOManager; import com.android.server.wifi.hotspot2.pps.Credential; import com.android.server.wifi.hotspot2.pps.HomeSP; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.EOFException; import java.io.File; import java.io.FileDescriptor; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.PrintWriter; import java.nio.charset.StandardCharsets; import java.security.PrivateKey; import java.security.cert.Certificate; import java.security.cert.CertificateException; import java.util.ArrayList; import java.util.BitSet; import java.util.Calendar; import java.util.Collection; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Objects; import java.util.Set; import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicInteger; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.zip.CRC32; import java.util.zip.Checksum; import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID; /** * This class provides the API to manage configured * wifi networks. The API is not thread safe is being * used only from WifiStateMachine. * * It deals with the following * - Add/update/remove a WifiConfiguration * The configuration contains two types of information. * = IP and proxy configuration that is handled by WifiConfigStore and * is saved to disk on any change. * * The format of configuration file is as follows: * * ... * ... * .. * * (key, value) pairs for a given network are grouped together and can * be in any order. A EOS at the end of a set of (key, value) pairs * indicates that the next set of (key, value) pairs are for a new * network. A network is identified by a unique ID_KEY. If there is no * ID_KEY in the (key, value) pairs, the data is discarded. * * An invalid version on read would result in discarding the contents of * the file. On the next write, the latest version is written to file. * * Any failures during read or write to the configuration file are ignored * without reporting to the user since the likelihood of these errors are * low and the impact on connectivity is low. * * = SSID & security details that is pushed to the supplicant. * supplicant saves these details to the disk on calling * saveConfigCommand(). * * We have two kinds of APIs exposed: * > public API calls that provide fine grained control * - enableNetwork, disableNetwork, addOrUpdateNetwork(), * removeNetwork(). For these calls, the config is not persisted * to the disk. (TODO: deprecate these calls in WifiManager) * > The new API calls - selectNetwork(), saveNetwork() & forgetNetwork(). * These calls persist the supplicant config to disk. * * - Maintain a list of configured networks for quick access * */ public class WifiConfigStore extends IpConfigStore { private Context mContext; public static final String TAG = "WifiConfigStore"; private static final boolean DBG = true; private static boolean VDBG = false; private static boolean VVDBG = false; private static final String SUPPLICANT_CONFIG_FILE = "/data/misc/wifi/wpa_supplicant.conf"; private static final String SUPPLICANT_CONFIG_FILE_BACKUP = SUPPLICANT_CONFIG_FILE + ".tmp"; private static final String PPS_FILE = "/data/misc/wifi/PerProviderSubscription.conf"; /* configured networks with network id as the key */ private final ConfigurationMap mConfiguredNetworks = new ConfigurationMap(); /* A network id is a unique identifier for a network configured in the * supplicant. Network ids are generated when the supplicant reads * the configuration file at start and can thus change for networks. * We store the IP configuration for networks along with a unique id * that is generated from SSID and security type of the network. A mapping * from the generated unique id to network id of the network is needed to * map supplicant config to IP configuration. */ /* Stores a map of NetworkId to ScanCache */ private HashMap mScanDetailCaches; /** * Framework keeps a list of (the CRC32 hashes of) all SSIDs that where deleted by user, * so as, framework knows not to re-add those SSIDs automatically to the Saved networks */ private Set mDeletedSSIDs = new HashSet(); /** * Framework keeps a list of ephemeral SSIDs that where deleted by user, * so as, framework knows not to autojoin again those SSIDs based on scorer input. * The list is never cleared up. * * The SSIDs are encoded in a String as per definition of WifiConfiguration.SSID field. */ public Set mDeletedEphemeralSSIDs = new HashSet(); /* Tracks the highest priority of configured networks */ private int mLastPriority = -1; private static final String ipConfigFile = Environment.getDataDirectory() + "/misc/wifi/ipconfig.txt"; private static final String networkHistoryConfigFile = Environment.getDataDirectory() + "/misc/wifi/networkHistory.txt"; private static final String autoJoinConfigFile = Environment.getDataDirectory() + "/misc/wifi/autojoinconfig.txt"; /* Network History Keys */ private static final String SSID_KEY = "SSID"; private static final String CONFIG_KEY = "CONFIG"; private static final String CHOICE_KEY = "CHOICE"; private static final String LINK_KEY = "LINK"; private static final String BSSID_KEY = "BSSID"; private static final String BSSID_KEY_END = "/BSSID"; private static final String RSSI_KEY = "RSSI"; private static final String FREQ_KEY = "FREQ"; private static final String DATE_KEY = "DATE"; private static final String MILLI_KEY = "MILLI"; private static final String BLACKLIST_MILLI_KEY = "BLACKLIST_MILLI"; private static final String NETWORK_ID_KEY = "ID"; private static final String PRIORITY_KEY = "PRIORITY"; private static final String DEFAULT_GW_KEY = "DEFAULT_GW"; private static final String AUTH_KEY = "AUTH"; private static final String STATUS_KEY = "AUTO_JOIN_STATUS"; private static final String BSSID_STATUS_KEY = "BSSID_STATUS"; private static final String SELF_ADDED_KEY = "SELF_ADDED"; private static final String FAILURE_KEY = "FAILURE"; private static final String DID_SELF_ADD_KEY = "DID_SELF_ADD"; private static final String PEER_CONFIGURATION_KEY = "PEER_CONFIGURATION"; private static final String CREATOR_UID_KEY = "CREATOR_UID_KEY"; private static final String CONNECT_UID_KEY = "CONNECT_UID_KEY"; private static final String UPDATE_UID_KEY = "UPDATE_UID"; private static final String SUPPLICANT_STATUS_KEY = "SUP_STATUS"; private static final String SUPPLICANT_DISABLE_REASON_KEY = "SUP_DIS_REASON"; private static final String FQDN_KEY = "FQDN"; private static final String NUM_CONNECTION_FAILURES_KEY = "CONNECT_FAILURES"; private static final String NUM_IP_CONFIG_FAILURES_KEY = "IP_CONFIG_FAILURES"; private static final String NUM_AUTH_FAILURES_KEY = "AUTH_FAILURES"; private static final String SCORER_OVERRIDE_KEY = "SCORER_OVERRIDE"; private static final String SCORER_OVERRIDE_AND_SWITCH_KEY = "SCORER_OVERRIDE_AND_SWITCH"; private static final String VALIDATED_INTERNET_ACCESS_KEY = "VALIDATED_INTERNET_ACCESS"; private static final String NO_INTERNET_ACCESS_REPORTS_KEY = "NO_INTERNET_ACCESS_REPORTS"; private static final String EPHEMERAL_KEY = "EPHEMERAL"; private static final String NUM_ASSOCIATION_KEY = "NUM_ASSOCIATION"; private static final String DELETED_CRC32_KEY = "DELETED_CRC32"; private static final String DELETED_EPHEMERAL_KEY = "DELETED_EPHEMERAL"; private static final String JOIN_ATTEMPT_BOOST_KEY = "JOIN_ATTEMPT_BOOST"; private static final String CREATOR_NAME_KEY = "CREATOR_NAME"; private static final String UPDATE_NAME_KEY = "UPDATE_NAME"; private static final String USER_APPROVED_KEY = "USER_APPROVED"; private static final String CREATION_TIME_KEY = "CREATION_TIME"; private static final String UPDATE_TIME_KEY = "UPDATE_TIME"; private static final String SEPARATOR = ": "; private static final String NL = "\n"; private static final String THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G_KEY = "THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G"; private static final String THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G_KEY = "THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G"; private static final String THRESHOLD_UNBLACKLIST_HARD_5G_KEY = "THRESHOLD_UNBLACKLIST_HARD_5G"; private static final String THRESHOLD_UNBLACKLIST_SOFT_5G_KEY = "THRESHOLD_UNBLACKLIST_SOFT_5G"; private static final String THRESHOLD_UNBLACKLIST_HARD_24G_KEY = "THRESHOLD_UNBLACKLIST_HARD_24G"; private static final String THRESHOLD_UNBLACKLIST_SOFT_24G_KEY = "THRESHOLD_UNBLACKLIST_SOFT_24G"; private static final String THRESHOLD_GOOD_RSSI_5_KEY = "THRESHOLD_GOOD_RSSI_5"; private static final String THRESHOLD_LOW_RSSI_5_KEY = "THRESHOLD_LOW_RSSI_5"; private static final String THRESHOLD_BAD_RSSI_5_KEY = "THRESHOLD_BAD_RSSI_5"; private static final String THRESHOLD_GOOD_RSSI_24_KEY = "THRESHOLD_GOOD_RSSI_24"; private static final String THRESHOLD_LOW_RSSI_24_KEY = "THRESHOLD_LOW_RSSI_24"; private static final String THRESHOLD_BAD_RSSI_24_KEY = "THRESHOLD_BAD_RSSI_24"; private static final String THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING_KEY = "THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING"; private static final String THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING_KEY = "THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING"; private static final String THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS_KEY = "THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS"; private static final String THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS_KEY = "THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS"; private static final String THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS_KEY = "THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS"; private static final String THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS_KEY = "THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS"; private static final String MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY = "MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS"; private static final String MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY = "MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS"; private static final String A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW_KEY = "A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW"; private static final String A_BAND_PREFERENCE_RSSI_THRESHOLD_KEY = "A_BAND_PREFERENCE_RSSI_THRESHOLD"; private static final String G_BAND_PREFERENCE_RSSI_THRESHOLD_KEY = "G_BAND_PREFERENCE_RSSI_THRESHOLD"; private static final String ENABLE_AUTOJOIN_WHILE_ASSOCIATED_KEY = "ENABLE_AUTOJOIN_WHILE_ASSOCIATED: "; private static final String ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY = "ASSOCIATED_PARTIAL_SCAN_PERIOD"; private static final String ASSOCIATED_FULL_SCAN_BACKOFF_KEY = "ASSOCIATED_FULL_SCAN_BACKOFF_PERIOD"; private static final String ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED_KEY = "ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED"; private static final String ONLY_LINK_SAME_CREDENTIAL_CONFIGURATIONS_KEY = "ONLY_LINK_SAME_CREDENTIAL_CONFIGURATIONS"; private static final String ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED_KEY = "ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED"; private static final String ENABLE_HAL_BASED_PNO = "ENABLE_HAL_BASED_PNO"; // The three below configurations are mainly for power stats and CPU usage tracking // allowing to incrementally disable framework features private static final String ENABLE_AUTO_JOIN_WHILE_ASSOCIATED_KEY = "ENABLE_AUTO_JOIN_WHILE_ASSOCIATED"; private static final String ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED_KEY = "ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED"; private static final String ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY = "ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY"; public static final String idStringVarName = "id_str"; // The Wifi verbose log is provided as a way to persist the verbose logging settings // for testing purpose. // It is not intended for normal use. private static final String WIFI_VERBOSE_LOGS_KEY = "WIFI_VERBOSE_LOGS"; // As we keep deleted PSK WifiConfiguration for a while, the PSK of // those deleted WifiConfiguration is set to this random unused PSK private static final String DELETED_CONFIG_PSK = "Mjkd86jEMGn79KhKll298Uu7-deleted"; public int maxTxPacketForFullScans = 8; public int maxRxPacketForFullScans = 16; public int maxTxPacketForPartialScans = 40; public int maxRxPacketForPartialScans = 80; public int associatedFullScanMaxIntervalMilli = 300000; // Sane value for roam blacklisting (not switching to a network if already associated) // 2 days public int networkSwitchingBlackListPeriodMilli = 2 * 24 * 60 * 60 * 1000; public int bandPreferenceBoostFactor5 = 5; // Boost by 5 dB per dB above threshold public int bandPreferencePenaltyFactor5 = 2; // Penalize by 2 dB per dB below threshold public int badLinkSpeed24 = 6; public int badLinkSpeed5 = 12; public int goodLinkSpeed24 = 24; public int goodLinkSpeed5 = 36; public int maxAuthErrorsToBlacklist = 4; public int maxConnectionErrorsToBlacklist = 4; public int wifiConfigBlacklistMinTimeMilli = 1000 * 60 * 5; // How long a disconnected config remain considered as the last user selection public int wifiConfigLastSelectionHysteresis = 1000 * 60 * 3; // Boost RSSI values of associated networks public int associatedHysteresisHigh = +14; public int associatedHysteresisLow = +8; boolean showNetworks = true; // TODO set this back to false, used for debugging 17516271 public boolean roamOnAny = false; public boolean onlyLinkSameCredentialConfigurations = true; public boolean enableLinkDebouncing = true; public boolean enable5GHzPreference = true; public boolean enableWifiCellularHandoverUserTriggeredAdjustment = true; public int currentNetworkBoost = 25; public int scanResultRssiLevelPatchUp = -85; public static final int maxNumScanCacheEntries = 128; public final AtomicBoolean enableHalBasedPno = new AtomicBoolean(true); public final AtomicBoolean enableSsidWhitelist = new AtomicBoolean(true); public final AtomicBoolean enableAutoJoinWhenAssociated = new AtomicBoolean(true); public final AtomicBoolean enableFullBandScanWhenAssociated = new AtomicBoolean(true); public final AtomicBoolean enableChipWakeUpWhenAssociated = new AtomicBoolean(true); public final AtomicBoolean enableRssiPollWhenAssociated = new AtomicBoolean(true); public final AtomicInteger thresholdInitialAutoJoinAttemptMin5RSSI = new AtomicInteger(WifiConfiguration.INITIAL_AUTO_JOIN_ATTEMPT_MIN_5); public final AtomicInteger thresholdInitialAutoJoinAttemptMin24RSSI = new AtomicInteger(WifiConfiguration.INITIAL_AUTO_JOIN_ATTEMPT_MIN_24); public final AtomicInteger thresholdUnblacklistThreshold5Hard = new AtomicInteger(WifiConfiguration.UNBLACKLIST_THRESHOLD_5_HARD); public final AtomicInteger thresholdUnblacklistThreshold5Soft = new AtomicInteger(WifiConfiguration.UNBLACKLIST_THRESHOLD_5_SOFT); public final AtomicInteger thresholdUnblacklistThreshold24Hard = new AtomicInteger(WifiConfiguration.UNBLACKLIST_THRESHOLD_24_HARD); public final AtomicInteger thresholdUnblacklistThreshold24Soft = new AtomicInteger(WifiConfiguration.UNBLACKLIST_THRESHOLD_24_SOFT); public final AtomicInteger thresholdGoodRssi5 = new AtomicInteger(WifiConfiguration.GOOD_RSSI_5); public final AtomicInteger thresholdLowRssi5 = new AtomicInteger(WifiConfiguration.LOW_RSSI_5); public final AtomicInteger thresholdBadRssi5 = new AtomicInteger(WifiConfiguration.BAD_RSSI_5); public final AtomicInteger thresholdGoodRssi24 = new AtomicInteger(WifiConfiguration.GOOD_RSSI_24); public final AtomicInteger thresholdLowRssi24 = new AtomicInteger(WifiConfiguration.LOW_RSSI_24); public final AtomicInteger thresholdBadRssi24 = new AtomicInteger(WifiConfiguration.BAD_RSSI_24); public final AtomicInteger maxTxPacketForNetworkSwitching = new AtomicInteger(40); public final AtomicInteger maxRxPacketForNetworkSwitching = new AtomicInteger(80); public final AtomicInteger enableVerboseLogging = new AtomicInteger(0); public final AtomicInteger bandPreferenceBoostThreshold5 = new AtomicInteger(WifiConfiguration.A_BAND_PREFERENCE_RSSI_THRESHOLD); public final AtomicInteger associatedFullScanBackoff = new AtomicInteger(12); // Will be divided by 8 by WifiStateMachine public final AtomicInteger bandPreferencePenaltyThreshold5 = new AtomicInteger(WifiConfiguration.G_BAND_PREFERENCE_RSSI_THRESHOLD); public final AtomicInteger alwaysEnableScansWhileAssociated = new AtomicInteger(0); public final AtomicInteger maxNumPassiveChannelsForPartialScans = new AtomicInteger(2); public final AtomicInteger maxNumActiveChannelsForPartialScans = new AtomicInteger(6); public final AtomicInteger wifiDisconnectedShortScanIntervalMilli = new AtomicInteger(15000); public final AtomicInteger wifiDisconnectedLongScanIntervalMilli = new AtomicInteger(120000); public final AtomicInteger wifiAssociatedShortScanIntervalMilli = new AtomicInteger(20000); public final AtomicInteger wifiAssociatedLongScanIntervalMilli = new AtomicInteger(180000); private static final Map sKeyMap = new HashMap<>(); /** * Regex pattern for extracting a connect choice. * Matches a strings like the following: * =([0:9]+) */ private static Pattern mConnectChoice = Pattern.compile("(.*)=([0-9]+)"); /* Enterprise configuration keys */ /** * In old configurations, the "private_key" field was used. However, newer * configurations use the key_id field with the engine_id set to "keystore". * If this field is found in the configuration, the migration code is * triggered. */ public static final String OLD_PRIVATE_KEY_NAME = "private_key"; /** * This represents an empty value of an enterprise field. * NULL is used at wpa_supplicant to indicate an empty value */ static final String EMPTY_VALUE = "NULL"; // Internal use only private static final String[] ENTERPRISE_CONFIG_SUPPLICANT_KEYS = new String[] { WifiEnterpriseConfig.EAP_KEY, WifiEnterpriseConfig.PHASE2_KEY, WifiEnterpriseConfig.IDENTITY_KEY, WifiEnterpriseConfig.ANON_IDENTITY_KEY, WifiEnterpriseConfig.PASSWORD_KEY, WifiEnterpriseConfig.CLIENT_CERT_KEY, WifiEnterpriseConfig.CA_CERT_KEY, WifiEnterpriseConfig.SUBJECT_MATCH_KEY, WifiEnterpriseConfig.ENGINE_KEY, WifiEnterpriseConfig.ENGINE_ID_KEY, WifiEnterpriseConfig.PRIVATE_KEY_ID_KEY, WifiEnterpriseConfig.ALTSUBJECT_MATCH_KEY, WifiEnterpriseConfig.DOM_SUFFIX_MATCH_KEY }; /** * If Connectivity Service has triggered an unwanted network disconnect */ public long lastUnwantedNetworkDisconnectTimestamp = 0; /** * The maximum number of times we will retry a connection to an access point * for which we have failed in acquiring an IP address from DHCP. A value of * N means that we will make N+1 connection attempts in all. *

* See {@link Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}. This is the default * value if a Settings value is not present. */ private static final int DEFAULT_MAX_DHCP_RETRIES = 9; private final LocalLog mLocalLog; private final WpaConfigFileObserver mFileObserver; private WifiNative mWifiNative; private final KeyStore mKeyStore = KeyStore.getInstance(); /** * The lastSelectedConfiguration is used to remember which network * was selected last by the user. * The connection to this network may not be successful, as well * the selection (i.e. network priority) might not be persisted. * WiFi state machine is the only object that sets this variable. */ private String lastSelectedConfiguration = null; /** * Cached PNO list, it is updated when WifiConfiguration changes due to user input. */ ArrayList mCachedPnoList = new ArrayList(); /* * BSSID blacklist, i.e. list of BSSID we want to avoid */ HashSet mBssidBlacklist = new HashSet(); /* * Lost config list, whenever we read a config from networkHistory.txt that was not in * wpa_supplicant.conf */ HashSet mLostConfigsDbg = new HashSet(); private final AnqpCache mAnqpCache; private final SupplicantBridge mSupplicantBridge; private final MOManager mMOManager; private final SIMAccessor mSIMAccessor; private WifiStateMachine mWifiStateMachine; WifiConfigStore(Context c, WifiStateMachine w, WifiNative wn) { mContext = c; mWifiNative = wn; mWifiStateMachine = w; // A map for value setting in readAutoJoinConfig() - replacing the replicated code. sKeyMap.put(ENABLE_AUTO_JOIN_WHILE_ASSOCIATED_KEY, enableAutoJoinWhenAssociated); sKeyMap.put(ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED_KEY, enableFullBandScanWhenAssociated); sKeyMap.put(ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED_KEY, enableChipWakeUpWhenAssociated); sKeyMap.put(ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY, enableRssiPollWhenAssociated); sKeyMap.put(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G_KEY, thresholdInitialAutoJoinAttemptMin5RSSI); sKeyMap.put(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G_KEY, thresholdInitialAutoJoinAttemptMin24RSSI); sKeyMap.put(THRESHOLD_UNBLACKLIST_HARD_5G_KEY, thresholdUnblacklistThreshold5Hard); sKeyMap.put(THRESHOLD_UNBLACKLIST_SOFT_5G_KEY, thresholdUnblacklistThreshold5Soft); sKeyMap.put(THRESHOLD_UNBLACKLIST_HARD_24G_KEY, thresholdUnblacklistThreshold24Hard); sKeyMap.put(THRESHOLD_UNBLACKLIST_SOFT_24G_KEY, thresholdUnblacklistThreshold24Soft); sKeyMap.put(THRESHOLD_GOOD_RSSI_5_KEY, thresholdGoodRssi5); sKeyMap.put(THRESHOLD_LOW_RSSI_5_KEY, thresholdLowRssi5); sKeyMap.put(THRESHOLD_BAD_RSSI_5_KEY, thresholdBadRssi5); sKeyMap.put(THRESHOLD_GOOD_RSSI_24_KEY, thresholdGoodRssi24); sKeyMap.put(THRESHOLD_LOW_RSSI_24_KEY, thresholdLowRssi24); sKeyMap.put(THRESHOLD_BAD_RSSI_24_KEY, thresholdBadRssi24); sKeyMap.put(THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING_KEY, maxTxPacketForNetworkSwitching); sKeyMap.put(THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING_KEY, maxRxPacketForNetworkSwitching); sKeyMap.put(THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS_KEY, maxTxPacketForNetworkSwitching); sKeyMap.put(THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS_KEY, maxRxPacketForNetworkSwitching); sKeyMap.put(THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS_KEY, maxTxPacketForNetworkSwitching); sKeyMap.put(THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS_KEY, maxRxPacketForNetworkSwitching); sKeyMap.put(WIFI_VERBOSE_LOGS_KEY, enableVerboseLogging); sKeyMap.put(A_BAND_PREFERENCE_RSSI_THRESHOLD_KEY, bandPreferenceBoostThreshold5); sKeyMap.put(ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY, wifiAssociatedShortScanIntervalMilli); sKeyMap.put(ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY, wifiAssociatedShortScanIntervalMilli); sKeyMap.put(ASSOCIATED_FULL_SCAN_BACKOFF_KEY, associatedFullScanBackoff); sKeyMap.put(G_BAND_PREFERENCE_RSSI_THRESHOLD_KEY, bandPreferencePenaltyThreshold5); sKeyMap.put(ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED_KEY, alwaysEnableScansWhileAssociated); sKeyMap.put(MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY, maxNumPassiveChannelsForPartialScans); sKeyMap.put(MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY, maxNumActiveChannelsForPartialScans); sKeyMap.put(ENABLE_HAL_BASED_PNO, enableHalBasedPno); sKeyMap.put(ENABLE_HAL_BASED_PNO, enableSsidWhitelist); if (showNetworks) { mLocalLog = mWifiNative.getLocalLog(); mFileObserver = new WpaConfigFileObserver(); mFileObserver.startWatching(); } else { mLocalLog = null; mFileObserver = null; } wifiAssociatedShortScanIntervalMilli.set(mContext.getResources().getInteger( R.integer.config_wifi_associated_short_scan_interval)); wifiAssociatedLongScanIntervalMilli.set(mContext.getResources().getInteger( R.integer.config_wifi_associated_short_scan_interval)); wifiDisconnectedShortScanIntervalMilli.set(mContext.getResources().getInteger( R.integer.config_wifi_disconnected_short_scan_interval)); wifiDisconnectedLongScanIntervalMilli.set(mContext.getResources().getInteger( R.integer.config_wifi_disconnected_long_scan_interval)); onlyLinkSameCredentialConfigurations = mContext.getResources().getBoolean( R.bool.config_wifi_only_link_same_credential_configurations); maxNumActiveChannelsForPartialScans.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_associated_partial_scan_max_num_active_channels)); maxNumPassiveChannelsForPartialScans.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_associated_partial_scan_max_num_passive_channels)); associatedFullScanMaxIntervalMilli = mContext.getResources().getInteger( R.integer.config_wifi_framework_associated_full_scan_max_interval); associatedFullScanBackoff.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_associated_full_scan_backoff)); enableLinkDebouncing = mContext.getResources().getBoolean( R.bool.config_wifi_enable_disconnection_debounce); enable5GHzPreference = mContext.getResources().getBoolean( R.bool.config_wifi_enable_5GHz_preference); bandPreferenceBoostFactor5 = mContext.getResources().getInteger( R.integer.config_wifi_framework_5GHz_preference_boost_factor); bandPreferencePenaltyFactor5 = mContext.getResources().getInteger( R.integer.config_wifi_framework_5GHz_preference_penalty_factor); bandPreferencePenaltyThreshold5.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_5GHz_preference_penalty_threshold)); bandPreferenceBoostThreshold5.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_5GHz_preference_boost_threshold)); associatedHysteresisHigh = mContext.getResources().getInteger( R.integer.config_wifi_framework_current_association_hysteresis_high); associatedHysteresisLow = mContext.getResources().getInteger( R.integer.config_wifi_framework_current_association_hysteresis_low); thresholdBadRssi5.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz)); thresholdLowRssi5.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz)); thresholdGoodRssi5.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz)); thresholdBadRssi24.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz)); thresholdLowRssi24.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz)); thresholdGoodRssi24.set(mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz)); enableWifiCellularHandoverUserTriggeredAdjustment = mContext.getResources().getBoolean( R.bool.config_wifi_framework_cellular_handover_enable_user_triggered_adjustment); badLinkSpeed24 = mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_bad_link_speed_24); badLinkSpeed5 = mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_bad_link_speed_5); goodLinkSpeed24 = mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_good_link_speed_24); goodLinkSpeed5 = mContext.getResources().getInteger( R.integer.config_wifi_framework_wifi_score_good_link_speed_5); maxAuthErrorsToBlacklist = mContext.getResources().getInteger( R.integer.config_wifi_framework_max_auth_errors_to_blacklist); maxConnectionErrorsToBlacklist = mContext.getResources().getInteger( R.integer.config_wifi_framework_max_connection_errors_to_blacklist); wifiConfigBlacklistMinTimeMilli = mContext.getResources().getInteger( R.integer.config_wifi_framework_network_black_list_min_time_milli); enableAutoJoinWhenAssociated.set(mContext.getResources().getBoolean( R.bool.config_wifi_framework_enable_associated_network_selection)); currentNetworkBoost = mContext.getResources().getInteger( R.integer.config_wifi_framework_current_network_boost); scanResultRssiLevelPatchUp = mContext.getResources().getInteger( R.integer.config_wifi_framework_scan_result_rssi_level_patchup_value); networkSwitchingBlackListPeriodMilli = mContext.getResources().getInteger( R.integer.config_wifi_network_switching_blacklist_time); enableHalBasedPno.set(mContext.getResources().getBoolean( R.bool.config_wifi_hal_pno_enable)); enableSsidWhitelist.set(mContext.getResources().getBoolean( R.bool.config_wifi_ssid_white_list_enable)); if (!enableHalBasedPno.get() && enableSsidWhitelist.get()) { enableSsidWhitelist.set(false); } boolean hs2on = mContext.getResources().getBoolean(R.bool.config_wifi_hotspot2_enabled); Log.d(Utils.hs2LogTag(getClass()), "Passpoint is " + (hs2on ? "enabled" : "disabled")); mMOManager = new MOManager(new File(PPS_FILE), hs2on); mAnqpCache = new AnqpCache(); mSupplicantBridge = new SupplicantBridge(mWifiNative, this); mScanDetailCaches = new HashMap<>(); mSIMAccessor = new SIMAccessor(mContext); } public void trimANQPCache(boolean all) { mAnqpCache.clear(all, DBG); } void enableVerboseLogging(int verbose) { enableVerboseLogging.set(verbose); if (verbose > 0) { VDBG = true; showNetworks = true; } else { VDBG = false; } if (verbose > 1) { VVDBG = true; } else { VVDBG = false; } } class WpaConfigFileObserver extends FileObserver { public WpaConfigFileObserver() { super(SUPPLICANT_CONFIG_FILE, CLOSE_WRITE); } @Override public void onEvent(int event, String path) { if (event == CLOSE_WRITE) { File file = new File(SUPPLICANT_CONFIG_FILE); if (VDBG) localLog("wpa_supplicant.conf changed; new size = " + file.length()); } } } /** * Fetch the list of configured networks * and enable all stored networks in supplicant. */ void loadAndEnableAllNetworks() { if (DBG) log("Loading config and enabling all networks "); loadConfiguredNetworks(); enableAllNetworks(); } int getConfiguredNetworksSize() { return mConfiguredNetworks.size(); } private List getConfiguredNetworks(Map pskMap) { List networks = new ArrayList<>(); for(WifiConfiguration config : mConfiguredNetworks.values()) { WifiConfiguration newConfig = new WifiConfiguration(config); // When updating this condition, update WifiStateMachine's CONNECT_NETWORK handler to // correctly handle updating existing configs that are filtered out here. if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || config.ephemeral) { // Do not enumerate and return this configuration to any one, // for instance WiFi Picker. // instead treat it as unknown. the configuration can still be retrieved // directly by the key or networkId continue; } if (pskMap != null && config.allowedKeyManagement != null && config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) && pskMap.containsKey(config.SSID)) { newConfig.preSharedKey = pskMap.get(config.SSID); } networks.add(newConfig); } return networks; } /** * This function returns all configuration, and is used for cebug and creating bug reports. */ private List getAllConfiguredNetworks() { List networks = new ArrayList<>(); for(WifiConfiguration config : mConfiguredNetworks.values()) { WifiConfiguration newConfig = new WifiConfiguration(config); networks.add(newConfig); } return networks; } /** * Fetch the list of currently configured networks * @return List of networks */ List getConfiguredNetworks() { return getConfiguredNetworks(null); } /** * Fetch the list of currently configured networks, filled with real preSharedKeys * @return List of networks */ List getPrivilegedConfiguredNetworks() { Map pskMap = getCredentialsBySsidMap(); return getConfiguredNetworks(pskMap); } /** * Find matching network for this scanResult */ WifiConfiguration getMatchingConfig(ScanResult scanResult) { for (Map.Entry entry : mScanDetailCaches.entrySet()) { Integer netId = (Integer) entry.getKey(); ScanDetailCache cache = (ScanDetailCache) entry.getValue(); WifiConfiguration config = getWifiConfiguration(netId); if (config == null) continue; if (cache.get(scanResult.BSSID) != null) { return config; } } return null; } /** * Fetch the preSharedKeys for all networks. * @return a map from Ssid to preSharedKey. */ private Map getCredentialsBySsidMap() { return readNetworkVariablesFromSupplicantFile("psk"); } /** * Fetch the list of currently configured networks that were recently seen * * @return List of networks */ List getRecentConfiguredNetworks(int milli, boolean copy) { List networks = new ArrayList(); for (WifiConfiguration config : mConfiguredNetworks.values()) { if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || config.ephemeral) { // Do not enumerate and return this configuration to any one, // instead treat it as unknown. the configuration can still be retrieved // directly by the key or networkId continue; } // Calculate the RSSI for scan results that are more recent than milli ScanDetailCache cache = getScanDetailCache(config); if (cache == null) { continue; } config.setVisibility(cache.getVisibility(milli)); if (config.visibility == null) { continue; } if (config.visibility.rssi5 == WifiConfiguration.INVALID_RSSI && config.visibility.rssi24 == WifiConfiguration.INVALID_RSSI) { continue; } if (copy) { networks.add(new WifiConfiguration(config)); } else { networks.add(config); } } return networks; } /** * Update the configuration and BSSID with latest RSSI value. */ void updateConfiguration(WifiInfo info) { WifiConfiguration config = getWifiConfiguration(info.getNetworkId()); if (config != null && getScanDetailCache(config) != null) { ScanDetail scanDetail = getScanDetailCache(config).getScanDetail(info.getBSSID()); if (scanDetail != null) { ScanResult result = scanDetail.getScanResult(); long previousSeen = result.seen; int previousRssi = result.level; // Update the scan result scanDetail.setSeen(); result.level = info.getRssi(); // Average the RSSI value result.averageRssi(previousRssi, previousSeen, WifiAutoJoinController.mScanResultMaximumAge); if (VDBG) { loge("updateConfiguration freq=" + result.frequency + " BSSID=" + result.BSSID + " RSSI=" + result.level + " " + config.configKey()); } } } } /** * get the Wificonfiguration for this netId * * @return Wificonfiguration */ WifiConfiguration getWifiConfiguration(int netId) { return mConfiguredNetworks.get(netId); } /** * Get the Wificonfiguration for this key * @return Wificonfiguration */ WifiConfiguration getWifiConfiguration(String key) { return mConfiguredNetworks.getByConfigKey(key); } /** * Enable all networks and save config. This will be a no-op if the list * of configured networks indicates all networks as being enabled */ void enableAllNetworks() { long now = System.currentTimeMillis(); boolean networkEnabledStateChanged = false; for(WifiConfiguration config : mConfiguredNetworks.values()) { if(config != null && config.status == Status.DISABLED && !config.ephemeral && (config.autoJoinStatus <= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE)) { // Wait for 5 minutes before reenabling config that have known, repeated connection // or DHCP failures if (config.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE || config.disableReason == WifiConfiguration.DISABLED_ASSOCIATION_REJECT || config.disableReason == WifiConfiguration.DISABLED_AUTH_FAILURE) { if (config.blackListTimestamp != 0 && now > config.blackListTimestamp && (now - config.blackListTimestamp) < wifiConfigBlacklistMinTimeMilli) { continue; } } if(mWifiNative.enableNetwork(config.networkId, false)) { networkEnabledStateChanged = true; config.status = Status.ENABLED; // Reset the blacklist condition config.numConnectionFailures = 0; config.numIpConfigFailures = 0; config.numAuthFailures = 0; // Reenable the wifi configuration config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); } else { loge("Enable network failed on " + config.networkId); } } } if (networkEnabledStateChanged) { mWifiNative.saveConfig(); sendConfiguredNetworksChangedBroadcast(); } } private boolean setNetworkPriorityNative(int netId, int priority) { return mWifiNative.setNetworkVariable(netId, WifiConfiguration.priorityVarName, Integer.toString(priority)); } private boolean setSSIDNative(int netId, String ssid) { return mWifiNative.setNetworkVariable(netId, WifiConfiguration.ssidVarName, encodeSSID(ssid)); } public boolean updateLastConnectUid(WifiConfiguration config, int uid) { if (config != null) { if (config.lastConnectUid != uid) { config.lastConnectUid = uid; config.dirty = true; return true; } } return false; } /** * Selects the specified network for connection. This involves * updating the priority of all the networks and enabling the given * network while disabling others. * * Selecting a network will leave the other networks disabled and * a call to enableAllNetworks() needs to be issued upon a connection * or a failure event from supplicant * * @param config network to select for connection * @param updatePriorities makes config highest priority network * @return false if the network id is invalid */ boolean selectNetwork(WifiConfiguration config, boolean updatePriorities, int uid) { if (VDBG) localLog("selectNetwork", config.networkId); if (config.networkId == INVALID_NETWORK_ID) return false; // Reset the priority of each network at start or if it goes too high. if (mLastPriority == -1 || mLastPriority > 1000000) { for(WifiConfiguration config2 : mConfiguredNetworks.values()) { if (updatePriorities) { if (config2.networkId != INVALID_NETWORK_ID) { config2.priority = 0; setNetworkPriorityNative(config2.networkId, config.priority); } } } mLastPriority = 0; } // Set to the highest priority and save the configuration. if (updatePriorities) { config.priority = ++mLastPriority; setNetworkPriorityNative(config.networkId, config.priority); buildPnoList(); } if (config.isPasspoint()) { /* need to slap on the SSID of selected bssid to work */ if (getScanDetailCache(config).size() != 0) { ScanDetail result = getScanDetailCache(config).getFirst(); if (result == null) { loge("Could not find scan result for " + config.BSSID); } else { log("Setting SSID for " + config.networkId + " to" + result.getSSID()); setSSIDNative(config.networkId, result.getSSID()); config.SSID = result.getSSID(); } } else { loge("Could not find bssid for " + config); } } if (updatePriorities) mWifiNative.saveConfig(); else mWifiNative.selectNetwork(config.networkId); updateLastConnectUid(config, uid); writeKnownNetworkHistory(false); /* Enable the given network while disabling all other networks */ enableNetworkWithoutBroadcast(config.networkId, true); /* Avoid saving the config & sending a broadcast to prevent settings * from displaying a disabled list of networks */ return true; } /** * Add/update the specified configuration and save config * * @param config WifiConfiguration to be saved * @return network update result */ NetworkUpdateResult saveNetwork(WifiConfiguration config, int uid) { WifiConfiguration conf; // A new network cannot have null SSID if (config == null || (config.networkId == INVALID_NETWORK_ID && config.SSID == null)) { return new NetworkUpdateResult(INVALID_NETWORK_ID); } if (VDBG) localLog("WifiConfigStore: saveNetwork netId", config.networkId); if (VDBG) { loge("WifiConfigStore saveNetwork, size=" + mConfiguredNetworks.size() + " SSID=" + config.SSID + " Uid=" + Integer.toString(config.creatorUid) + "/" + Integer.toString(config.lastUpdateUid)); } if (mDeletedEphemeralSSIDs.remove(config.SSID)) { if (VDBG) { loge("WifiConfigStore: removed from ephemeral blacklist: " + config.SSID); } // NOTE: This will be flushed to disk as part of the addOrUpdateNetworkNative call // below, since we're creating/modifying a config. } boolean newNetwork = (config.networkId == INVALID_NETWORK_ID); NetworkUpdateResult result = addOrUpdateNetworkNative(config, uid); int netId = result.getNetworkId(); if (VDBG) localLog("WifiConfigStore: saveNetwork got it back netId=", netId); /* enable a new network */ if (newNetwork && netId != INVALID_NETWORK_ID) { if (VDBG) localLog("WifiConfigStore: will enable netId=", netId); mWifiNative.enableNetwork(netId, false); conf = mConfiguredNetworks.get(netId); if (conf != null) conf.status = Status.ENABLED; } conf = mConfiguredNetworks.get(netId); if (conf != null) { if (conf.autoJoinStatus != WifiConfiguration.AUTO_JOIN_ENABLED) { if (VDBG) localLog("WifiConfigStore: re-enabling: " + conf.SSID); // reenable autojoin, since new information has been provided conf.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); enableNetworkWithoutBroadcast(conf.networkId, false); } if (VDBG) { loge("WifiConfigStore: saveNetwork got config back netId=" + Integer.toString(netId) + " uid=" + Integer.toString(config.creatorUid)); } } mWifiNative.saveConfig(); sendConfiguredNetworksChangedBroadcast(conf, result.isNewNetwork() ? WifiManager.CHANGE_REASON_ADDED : WifiManager.CHANGE_REASON_CONFIG_CHANGE); return result; } /** * Firmware is roaming away from this BSSID, and this BSSID was on 5GHz, and it's RSSI was good, * this means we have a situation where we would want to remain on this BSSID but firmware * is not successful at it. * This situation is observed on a small number of Access Points, b/17960587 * In that situation, blacklist this BSSID really hard so as framework will not attempt to * roam to it for the next 8 hours. We do not to keep flipping between 2.4 and 5GHz band.. * TODO: review the blacklisting strategy so as to make it softer and adaptive * @param info */ void driverRoamedFrom(WifiInfo info) { if (info != null && info.getBSSID() != null && ScanResult.is5GHz(info.getFrequency()) && info.getRssi() > (bandPreferenceBoostThreshold5.get() + 3)) { WifiConfiguration config = getWifiConfiguration(info.getNetworkId()); if (config != null) { if (getScanDetailCache(config) != null) { ScanResult result = getScanDetailCache(config).get(info.getBSSID()); if (result != null) { result.setAutoJoinStatus(ScanResult.AUTO_ROAM_DISABLED + 1); } } } } } void noteRoamingFailure(WifiConfiguration config, int reason) { if (config == null) return; config.lastRoamingFailure = System.currentTimeMillis(); config.roamingFailureBlackListTimeMilli = 2 * (config.roamingFailureBlackListTimeMilli + 1000); if (config.roamingFailureBlackListTimeMilli > networkSwitchingBlackListPeriodMilli) { config.roamingFailureBlackListTimeMilli = networkSwitchingBlackListPeriodMilli; } config.lastRoamingFailureReason = reason; } void saveWifiConfigBSSID(WifiConfiguration config) { // Sanity check the config is valid if (config == null || (config.networkId == INVALID_NETWORK_ID && config.SSID == null)) { return; } // If an app specified a BSSID then dont over-write it if (config.BSSID != null && config.BSSID != "any") { return; } // If autojoin specified a BSSID then write it in the network block if (config.autoJoinBSSID != null) { loge("saveWifiConfigBSSID Setting BSSID for " + config.configKey() + " to " + config.autoJoinBSSID); if (!mWifiNative.setNetworkVariable( config.networkId, WifiConfiguration.bssidVarName, config.autoJoinBSSID)) { loge("failed to set BSSID: " + config.autoJoinBSSID); } else if (config.autoJoinBSSID.equals("any")) { // Paranoia, we just want to make sure that we restore the config to normal mWifiNative.saveConfig(); } } } void updateStatus(int netId, DetailedState state) { if (netId != INVALID_NETWORK_ID) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config == null) return; switch (state) { case CONNECTED: config.status = Status.CURRENT; //we successfully connected, hence remove the blacklist config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); break; case DISCONNECTED: //If network is already disabled, keep the status if (config.status == Status.CURRENT) { config.status = Status.ENABLED; } break; default: //do nothing, retain the existing state break; } } } /** * Disable an ephemeral SSID for the purpose of auto-joining thru scored. * This SSID will never be scored anymore. * The only way to "un-disable it" is if the user create a network for that SSID and then * forget it. * * @param SSID caller must ensure that the SSID passed thru this API match * the WifiConfiguration.SSID rules, and thus be surrounded by quotes. * @return the {@link WifiConfiguration} corresponding to this SSID, if any, so that we can * disconnect if this is the current network. */ WifiConfiguration disableEphemeralNetwork(String SSID) { if (SSID == null) { return null; } WifiConfiguration foundConfig = mConfiguredNetworks.getEphemeral(SSID); mDeletedEphemeralSSIDs.add(SSID); loge("Forget ephemeral SSID " + SSID + " num=" + mDeletedEphemeralSSIDs.size()); if (foundConfig != null) { loge("Found ephemeral config in disableEphemeralNetwork: " + foundConfig.networkId); } // Force a write, because the mDeletedEphemeralSSIDs list has changed even though the // configurations may not have. writeKnownNetworkHistory(true); return foundConfig; } /** * Forget the specified network and save config * * @param netId network to forget * @return {@code true} if it succeeds, {@code false} otherwise */ boolean forgetNetwork(int netId) { if (showNetworks) localLog("forgetNetwork", netId); WifiConfiguration config = mConfiguredNetworks.get(netId); boolean remove = removeConfigAndSendBroadcastIfNeeded(netId); if (!remove) { //success but we dont want to remove the network from supplicant conf file return true; } if (mWifiNative.removeNetwork(netId)) { if (config != null && config.isPasspoint()) { writePasspointConfigs(config.FQDN, null); } mWifiNative.saveConfig(); writeKnownNetworkHistory(true); return true; } else { loge("Failed to remove network " + netId); return false; } } /** * Add/update a network. Note that there is no saveConfig operation. * This function is retained for compatibility with the public * API. The more powerful saveNetwork() is used by the * state machine * * @param config wifi configuration to add/update * @return network Id */ int addOrUpdateNetwork(WifiConfiguration config, int uid) { if (showNetworks) localLog("addOrUpdateNetwork id=", config.networkId); //adding unconditional message to chase b/15111865 Log.e(TAG, " key=" + config.configKey() + " netId=" + Integer.toString(config.networkId) + " uid=" + Integer.toString(config.creatorUid) + "/" + Integer.toString(config.lastUpdateUid)); if (config.isPasspoint()) { /* create a temporary SSID with providerFriendlyName */ Long csum = getChecksum(config.FQDN); config.SSID = csum.toString(); } NetworkUpdateResult result = addOrUpdateNetworkNative(config, uid); if (result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) { WifiConfiguration conf = mConfiguredNetworks.get(result.getNetworkId()); if (conf != null) { sendConfiguredNetworksChangedBroadcast(conf, result.isNewNetwork ? WifiManager.CHANGE_REASON_ADDED : WifiManager.CHANGE_REASON_CONFIG_CHANGE); } } return result.getNetworkId(); } /** * Get the Wifi PNO list * * @return list of WifiNative.WifiPnoNetwork */ private void buildPnoList() { mCachedPnoList = new ArrayList(); ArrayList sortedWifiConfigurations = new ArrayList(getConfiguredNetworks()); Log.e(TAG, "buildPnoList sortedWifiConfigurations size " + sortedWifiConfigurations.size()); if (sortedWifiConfigurations.size() != 0) { // Sort by descending priority Collections.sort(sortedWifiConfigurations, new Comparator() { public int compare(WifiConfiguration a, WifiConfiguration b) { return a.priority >= b.priority ? 1 : -1; } }); } for (WifiConfiguration config : sortedWifiConfigurations) { // Initialize the RSSI threshold with sane value: // Use the 2.4GHz threshold since most WifiConfigurations are dual bands // There is very little penalty with triggering too soon, i.e. if PNO finds a network // that has an RSSI too low for us to attempt joining it. int threshold = thresholdInitialAutoJoinAttemptMin24RSSI.get(); Log.e(TAG, "found sortedWifiConfigurations : " + config.configKey()); WifiNative.WifiPnoNetwork network = mWifiNative.new WifiPnoNetwork(config, threshold); mCachedPnoList.add(network); } } String[] getWhiteListedSsids(WifiConfiguration config) { int num_ssids = 0; String nonQuoteSSID; int length; if (enableSsidWhitelist.get() == false) return null; List list = new ArrayList(); if (config == null) return null; if (config.linkedConfigurations == null) { return null; } if (config.SSID == null || TextUtils.isEmpty(config.SSID)) { return null; } for (String configKey : config.linkedConfigurations.keySet()) { // Sanity check that the linked configuration is still valid WifiConfiguration link = getWifiConfiguration(configKey); if (link == null) { continue; } if (link.autoJoinStatus != WifiConfiguration.AUTO_JOIN_ENABLED) { continue; } if (link.hiddenSSID == true) { continue; } if (link.SSID == null || TextUtils.isEmpty(link.SSID)) { continue; } length = link.SSID.length(); if (length > 2 && (link.SSID.charAt(0) == '"') && link.SSID.charAt(length - 1) == '"') { nonQuoteSSID = link.SSID.substring(1, length - 1); } else { nonQuoteSSID = link.SSID; } list.add(nonQuoteSSID); } if (list.size() != 0) { length = config.SSID.length(); if (length > 2 && (config.SSID.charAt(0) == '"') && config.SSID.charAt(length - 1) == '"') { nonQuoteSSID = config.SSID.substring(1, length - 1); } else { nonQuoteSSID = config.SSID; } list.add(nonQuoteSSID); } return (String[])list.toArray(new String[0]); } /** * Remove a network. Note that there is no saveConfig operation. * This function is retained for compatibility with the public * API. The more powerful forgetNetwork() is used by the * state machine for network removal * * @param netId network to be removed * @return {@code true} if it succeeds, {@code false} otherwise */ boolean removeNetwork(int netId) { if (showNetworks) localLog("removeNetwork", netId); WifiConfiguration config = mConfiguredNetworks.get(netId); boolean ret = mWifiNative.removeNetwork(netId); if (ret) { removeConfigAndSendBroadcastIfNeeded(netId); if (config != null && config.isPasspoint()) { writePasspointConfigs(config.FQDN, null); } } return ret; } static private Long getChecksum(String source) { Checksum csum = new CRC32(); csum.update(source.getBytes(), 0, source.getBytes().length); return csum.getValue(); } private boolean removeConfigAndSendBroadcastIfNeeded(int netId) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { if (VDBG) { loge("removeNetwork " + Integer.toString(netId) + " key=" + config.configKey() + " config.id=" + Integer.toString(config.networkId)); } // cancel the last user choice if (config.configKey().equals(lastSelectedConfiguration)) { lastSelectedConfiguration = null; } // Remove any associated keys if (config.enterpriseConfig != null) { removeKeys(config.enterpriseConfig); } if (config.selfAdded || config.linkedConfigurations != null || config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { if (!TextUtils.isEmpty(config.SSID)) { /* Remember that we deleted this PSK SSID */ if (config.SSID != null) { Long csum = getChecksum(config.SSID); mDeletedSSIDs.add(csum); loge("removeNetwork " + Integer.toString(netId) + " key=" + config.configKey() + " config.id=" + Integer.toString(config.networkId) + " crc=" + csum); } else { loge("removeNetwork " + Integer.toString(netId) + " key=" + config.configKey() + " config.id=" + Integer.toString(config.networkId)); } } } mConfiguredNetworks.remove(netId); mScanDetailCaches.remove(netId); writeIpAndProxyConfigurations(); sendConfiguredNetworksChangedBroadcast(config, WifiManager.CHANGE_REASON_REMOVED); writeKnownNetworkHistory(true); } return true; } /* * Remove all networks associated with an application * * @param packageName name of the package of networks to remove * @return {@code true} if all networks removed successfully, {@code false} otherwise */ boolean removeNetworksForApp(ApplicationInfo app) { if (app == null || app.packageName == null) { return false; } boolean success = true; WifiConfiguration [] copiedConfigs = mConfiguredNetworks.values().toArray(new WifiConfiguration[0]); for (WifiConfiguration config : copiedConfigs) { if (app.uid != config.creatorUid || !app.packageName.equals(config.creatorName)) { continue; } if (showNetworks) { localLog("Removing network " + config.SSID + ", application \"" + app.packageName + "\" uninstalled" + " from user " + UserHandle.getUserId(app.uid)); } success &= removeNetwork(config.networkId); } mWifiNative.saveConfig(); return success; } boolean removeNetworksForUser(int userId) { boolean success = true; WifiConfiguration[] copiedConfigs = mConfiguredNetworks.values().toArray(new WifiConfiguration[0]); for (WifiConfiguration config : copiedConfigs) { if (userId != UserHandle.getUserId(config.creatorUid)) { continue; } success &= removeNetwork(config.networkId); if (showNetworks) { localLog("Removing network " + config.SSID + ", user " + userId + " removed"); } } return success; } /** * Enable a network. Note that there is no saveConfig operation. * This function is retained for compatibility with the public * API. The more powerful selectNetwork()/saveNetwork() is used by the * state machine for connecting to a network * * @param netId network to be enabled * @return {@code true} if it succeeds, {@code false} otherwise */ boolean enableNetwork(int netId, boolean disableOthers, int uid) { boolean ret = enableNetworkWithoutBroadcast(netId, disableOthers); if (disableOthers) { if (VDBG) localLog("enableNetwork(disableOthers=true, uid=" + uid + ") ", netId); updateLastConnectUid(getWifiConfiguration(netId), uid); writeKnownNetworkHistory(false); sendConfiguredNetworksChangedBroadcast(); } else { if (VDBG) localLog("enableNetwork(disableOthers=false) ", netId); WifiConfiguration enabledNetwork; synchronized(mConfiguredNetworks) { // !!! Useless synchronization! enabledNetwork = mConfiguredNetworks.get(netId); } // check just in case the network was removed by someone else. if (enabledNetwork != null) { sendConfiguredNetworksChangedBroadcast(enabledNetwork, WifiManager.CHANGE_REASON_CONFIG_CHANGE); } } return ret; } boolean enableNetworkWithoutBroadcast(int netId, boolean disableOthers) { boolean ret = mWifiNative.enableNetwork(netId, disableOthers); WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) config.status = Status.ENABLED; if (disableOthers) { markAllNetworksDisabledExcept(netId); } return ret; } void disableAllNetworks() { if (VDBG) localLog("disableAllNetworks"); boolean networkDisabled = false; for (WifiConfiguration enabled : mConfiguredNetworks.getEnabledNetworks()) { if(mWifiNative.disableNetwork(enabled.networkId)) { networkDisabled = true; enabled.status = Status.DISABLED; } else { loge("Disable network failed on " + enabled.networkId); } } if (networkDisabled) { sendConfiguredNetworksChangedBroadcast(); } } /** * Disable a network. Note that there is no saveConfig operation. * @param netId network to be disabled * @return {@code true} if it succeeds, {@code false} otherwise */ boolean disableNetwork(int netId) { boolean ret = disableNetwork(netId, WifiConfiguration.DISABLED_UNKNOWN_REASON); if (ret) { mWifiStateMachine.registerNetworkDisabled(netId); } return ret; } /** * Disable a network. Note that there is no saveConfig operation. * @param netId network to be disabled * @param reason reason code network was disabled * @return {@code true} if it succeeds, {@code false} otherwise */ boolean disableNetwork(int netId, int reason) { if (VDBG) localLog("disableNetwork", netId); boolean ret = mWifiNative.disableNetwork(netId); WifiConfiguration network = null; WifiConfiguration config = mConfiguredNetworks.get(netId); if (VDBG) { if (config != null) { loge("disableNetwork netId=" + Integer.toString(netId) + " SSID=" + config.SSID + " disabled=" + (config.status == Status.DISABLED) + " reason=" + Integer.toString(config.disableReason)); } } /* Only change the reason if the network was not previously disabled /* and the reason is not DISABLED_BY_WIFI_MANAGER, that is, if a 3rd party * set its configuration as disabled, then leave it disabled */ if (config != null) { if (config.status != Status.DISABLED && config.disableReason != WifiConfiguration.DISABLED_BY_WIFI_MANAGER) { config.status = Status.DISABLED; config.disableReason = reason; network = config; } if (reason == WifiConfiguration.DISABLED_BY_WIFI_MANAGER) { // Make sure autojoin wont reenable this configuration without further user // intervention config.status = Status.DISABLED; config.autoJoinStatus = WifiConfiguration.AUTO_JOIN_DISABLED_USER_ACTION; } } if (network != null) { sendConfiguredNetworksChangedBroadcast(network, WifiManager.CHANGE_REASON_CONFIG_CHANGE); } return ret; } /** * Save the configured networks in supplicant to disk * @return {@code true} if it succeeds, {@code false} otherwise */ boolean saveConfig() { return mWifiNative.saveConfig(); } /** * Start WPS pin method configuration with pin obtained * from the access point * @param config WPS configuration * @return Wps result containing status and pin */ WpsResult startWpsWithPinFromAccessPoint(WpsInfo config) { WpsResult result = new WpsResult(); if (mWifiNative.startWpsRegistrar(config.BSSID, config.pin)) { /* WPS leaves all networks disabled */ markAllNetworksDisabled(); result.status = WpsResult.Status.SUCCESS; } else { loge("Failed to start WPS pin method configuration"); result.status = WpsResult.Status.FAILURE; } return result; } /** * Start WPS pin method configuration with pin obtained * from the device * @return WpsResult indicating status and pin */ WpsResult startWpsWithPinFromDevice(WpsInfo config) { WpsResult result = new WpsResult(); result.pin = mWifiNative.startWpsPinDisplay(config.BSSID); /* WPS leaves all networks disabled */ if (!TextUtils.isEmpty(result.pin)) { markAllNetworksDisabled(); result.status = WpsResult.Status.SUCCESS; } else { loge("Failed to start WPS pin method configuration"); result.status = WpsResult.Status.FAILURE; } return result; } /** * Start WPS push button configuration * @param config WPS configuration * @return WpsResult indicating status and pin */ WpsResult startWpsPbc(WpsInfo config) { WpsResult result = new WpsResult(); if (mWifiNative.startWpsPbc(config.BSSID)) { /* WPS leaves all networks disabled */ markAllNetworksDisabled(); result.status = WpsResult.Status.SUCCESS; } else { loge("Failed to start WPS push button configuration"); result.status = WpsResult.Status.FAILURE; } return result; } /** * Fetch the static IP configuration for a given network id */ StaticIpConfiguration getStaticIpConfiguration(int netId) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { return config.getStaticIpConfiguration(); } return null; } /** * Set the static IP configuration for a given network id */ void setStaticIpConfiguration(int netId, StaticIpConfiguration staticIpConfiguration) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { config.setStaticIpConfiguration(staticIpConfiguration); } } /** * set default GW MAC address */ void setDefaultGwMacAddress(int netId, String macAddress) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { //update defaultGwMacAddress config.defaultGwMacAddress = macAddress; } } /** * Fetch the proxy properties for a given network id * @param netId id * @return ProxyInfo for the network id */ ProxyInfo getProxyProperties(int netId) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { return config.getHttpProxy(); } return null; } /** * Return if the specified network is using static IP * @param netId id * @return {@code true} if using static ip for netId */ boolean isUsingStaticIp(int netId) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null && config.getIpAssignment() == IpAssignment.STATIC) { return true; } return false; } boolean isEphemeral(int netId) { WifiConfiguration config = mConfiguredNetworks.get(netId); return config != null && config.ephemeral; } /** * Should be called when a single network configuration is made. * @param network The network configuration that changed. * @param reason The reason for the change, should be one of WifiManager.CHANGE_REASON_ADDED, * WifiManager.CHANGE_REASON_REMOVED, or WifiManager.CHANGE_REASON_CHANGE. */ private void sendConfiguredNetworksChangedBroadcast(WifiConfiguration network, int reason) { Intent intent = new Intent(WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION); intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); intent.putExtra(WifiManager.EXTRA_MULTIPLE_NETWORKS_CHANGED, false); intent.putExtra(WifiManager.EXTRA_WIFI_CONFIGURATION, network); intent.putExtra(WifiManager.EXTRA_CHANGE_REASON, reason); mContext.sendBroadcastAsUser(intent, UserHandle.ALL); } /** * Should be called when multiple network configuration changes are made. */ private void sendConfiguredNetworksChangedBroadcast() { Intent intent = new Intent(WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION); intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); intent.putExtra(WifiManager.EXTRA_MULTIPLE_NETWORKS_CHANGED, true); mContext.sendBroadcastAsUser(intent, UserHandle.ALL); } void loadConfiguredNetworks() { mLastPriority = 0; mConfiguredNetworks.clear(); int last_id = -1; boolean done = false; while (!done) { String listStr = mWifiNative.listNetworks(last_id); if (listStr == null) return; String[] lines = listStr.split("\n"); if (showNetworks) { localLog("WifiConfigStore: loadConfiguredNetworks: "); for (String net : lines) { localLog(net); } } // Skip the first line, which is a header for (int i = 1; i < lines.length; i++) { String[] result = lines[i].split("\t"); // network-id | ssid | bssid | flags WifiConfiguration config = new WifiConfiguration(); try { config.networkId = Integer.parseInt(result[0]); last_id = config.networkId; } catch(NumberFormatException e) { loge("Failed to read network-id '" + result[0] + "'"); continue; } if (result.length > 3) { if (result[3].indexOf("[CURRENT]") != -1) config.status = WifiConfiguration.Status.CURRENT; else if (result[3].indexOf("[DISABLED]") != -1) config.status = WifiConfiguration.Status.DISABLED; else config.status = WifiConfiguration.Status.ENABLED; } else { config.status = WifiConfiguration.Status.ENABLED; } readNetworkVariables(config); Checksum csum = new CRC32(); if (config.SSID != null) { csum.update(config.SSID.getBytes(), 0, config.SSID.getBytes().length); long d = csum.getValue(); if (mDeletedSSIDs.contains(d)) { loge(" got CRC for SSID " + config.SSID + " -> " + d + ", was deleted"); } } if (config.priority > mLastPriority) { mLastPriority = config.priority; } config.setIpAssignment(IpAssignment.DHCP); config.setProxySettings(ProxySettings.NONE); if (mConfiguredNetworks.getByConfigKey(config.configKey()) != null) { // That SSID is already known, just ignore this duplicate entry if (showNetworks) localLog("discarded duplicate network ", config.networkId); } else if(WifiServiceImpl.isValid(config)){ mConfiguredNetworks.put(config.networkId, config); if (showNetworks) localLog("loaded configured network", config.networkId); } else { if (showNetworks) log("Ignoring loaded configured for network " + config.networkId + " because config are not valid"); } } done = (lines.length == 1); } readPasspointConfig(); readIpAndProxyConfigurations(); readNetworkHistory(); readAutoJoinConfig(); buildPnoList(); sendConfiguredNetworksChangedBroadcast(); if (showNetworks) localLog("loadConfiguredNetworks loaded " + mConfiguredNetworks.size() + " networks"); if (mConfiguredNetworks.isEmpty()) { // no networks? Lets log if the file contents logKernelTime(); logContents(SUPPLICANT_CONFIG_FILE); logContents(SUPPLICANT_CONFIG_FILE_BACKUP); logContents(networkHistoryConfigFile); } } private void logContents(String file) { localLog("--- Begin " + file + " ---", true); BufferedReader reader = null; try { reader = new BufferedReader(new FileReader(file)); for (String line = reader.readLine(); line != null; line = reader.readLine()) { localLog(line, true); } } catch (FileNotFoundException e) { localLog("Could not open " + file + ", " + e, true); } catch (IOException e) { localLog("Could not read " + file + ", " + e, true); } finally { try { if (reader != null) { reader.close(); } } catch (IOException e) { // Just ignore the fact that we couldn't close } } localLog("--- End " + file + " Contents ---", true); } private Map readNetworkVariablesFromSupplicantFile(String key) { Map result = new HashMap<>(); BufferedReader reader = null; if (VDBG) loge("readNetworkVariablesFromSupplicantFile key=" + key); try { reader = new BufferedReader(new FileReader(SUPPLICANT_CONFIG_FILE)); boolean found = false; String networkSsid = null; String value = null; for (String line = reader.readLine(); line != null; line = reader.readLine()) { if (line.matches("[ \\t]*network=\\{")) { found = true; networkSsid = null; value = null; } else if (line.matches("[ \\t]*\\}")) { found = false; networkSsid = null; value = null; } if (found) { String trimmedLine = line.trim(); if (trimmedLine.startsWith("ssid=")) { networkSsid = trimmedLine.substring(5); } else if (trimmedLine.startsWith(key + "=")) { value = trimmedLine.substring(key.length() + 1); } if (networkSsid != null && value != null) { result.put(networkSsid, value); } } } } catch (FileNotFoundException e) { if (VDBG) loge("Could not open " + SUPPLICANT_CONFIG_FILE + ", " + e); } catch (IOException e) { if (VDBG) loge("Could not read " + SUPPLICANT_CONFIG_FILE + ", " + e); } finally { try { if (reader != null) { reader.close(); } } catch (IOException e) { // Just ignore the fact that we couldn't close } } return result; } private String readNetworkVariableFromSupplicantFile(String ssid, String key) { long start = SystemClock.elapsedRealtimeNanos(); Map data = readNetworkVariablesFromSupplicantFile(key); long end = SystemClock.elapsedRealtimeNanos(); if (VDBG) { loge("readNetworkVariableFromSupplicantFile ssid=[" + ssid + "] key=" + key + " duration=" + (long)(end - start)); } return data.get(ssid); } /* Mark all networks except specified netId as disabled */ private void markAllNetworksDisabledExcept(int netId) { for(WifiConfiguration config : mConfiguredNetworks.values()) { if(config != null && config.networkId != netId) { if (config.status != Status.DISABLED) { config.status = Status.DISABLED; config.disableReason = WifiConfiguration.DISABLED_UNKNOWN_REASON; } } } } private void markAllNetworksDisabled() { markAllNetworksDisabledExcept(INVALID_NETWORK_ID); } boolean needsUnlockedKeyStore() { // Any network using certificates to authenticate access requires // unlocked key store; unless the certificates can be stored with // hardware encryption for(WifiConfiguration config : mConfiguredNetworks.values()) { if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) && config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { if (needsSoftwareBackedKeyStore(config.enterpriseConfig)) { return true; } } } return false; } void readPasspointConfig() { List homeSPs; try { homeSPs = mMOManager.loadAllSPs(); } catch (IOException e) { loge("Could not read " + PPS_FILE + " : " + e); return; } mConfiguredNetworks.populatePasspointData(homeSPs, mWifiNative); } public void writePasspointConfigs(final String fqdn, final HomeSP homeSP) { mWriter.write(PPS_FILE, new DelayedDiskWrite.Writer() { @Override public void onWriteCalled(DataOutputStream out) throws IOException { try { if (homeSP != null) { mMOManager.addSP(homeSP); } else { mMOManager.removeSP(fqdn); } } catch (IOException e) { loge("Could not write " + PPS_FILE + " : " + e); } } }, false); } public void writeKnownNetworkHistory(boolean force) { boolean needUpdate = force; /* Make a copy */ final List networks = new ArrayList(); for (WifiConfiguration config : mConfiguredNetworks.values()) { networks.add(new WifiConfiguration(config)); if (config.dirty == true) { loge(" rewrite network history for " + config.configKey()); config.dirty = false; needUpdate = true; } } if (VDBG) { loge(" writeKnownNetworkHistory() num networks:" + mConfiguredNetworks.size() + " needWrite=" + needUpdate); } if (needUpdate == false) { return; } mWriter.write(networkHistoryConfigFile, new DelayedDiskWrite.Writer() { public void onWriteCalled(DataOutputStream out) throws IOException { for (WifiConfiguration config : networks) { //loge("onWriteCalled write SSID: " + config.SSID); /* if (config.getLinkProperties() != null) loge(" lp " + config.getLinkProperties().toString()); else loge("attempt config w/o lp"); */ if (VDBG) { int num = 0; int numlink = 0; if (config.connectChoices != null) { num = config.connectChoices.size(); } if (config.linkedConfigurations != null) { numlink = config.linkedConfigurations.size(); } loge("saving network history: " + config.configKey() + " gw: " + config.defaultGwMacAddress + " autojoin-status: " + config.autoJoinStatus + " ephemeral=" + config.ephemeral + " choices:" + Integer.toString(num) + " link:" + Integer.toString(numlink) + " status:" + Integer.toString(config.status) + " nid:" + Integer.toString(config.networkId)); } if (!WifiServiceImpl.isValid(config)) continue; if (config.SSID == null) { if (VDBG) { loge("writeKnownNetworkHistory trying to write config with null SSID"); } continue; } if (VDBG) { loge("writeKnownNetworkHistory write config " + config.configKey()); } out.writeUTF(CONFIG_KEY + SEPARATOR + config.configKey() + NL); if (config.SSID != null) { out.writeUTF(SSID_KEY + SEPARATOR + config.SSID + NL); } if (config.FQDN != null) { out.writeUTF(FQDN_KEY + SEPARATOR + config.FQDN + NL); } out.writeUTF(PRIORITY_KEY + SEPARATOR + Integer.toString(config.priority) + NL); out.writeUTF(STATUS_KEY + SEPARATOR + Integer.toString(config.autoJoinStatus) + NL); out.writeUTF(SUPPLICANT_STATUS_KEY + SEPARATOR + Integer.toString(config.status) + NL); out.writeUTF(SUPPLICANT_DISABLE_REASON_KEY + SEPARATOR + Integer.toString(config.disableReason) + NL); out.writeUTF(NETWORK_ID_KEY + SEPARATOR + Integer.toString(config.networkId) + NL); out.writeUTF(SELF_ADDED_KEY + SEPARATOR + Boolean.toString(config.selfAdded) + NL); out.writeUTF(DID_SELF_ADD_KEY + SEPARATOR + Boolean.toString(config.didSelfAdd) + NL); out.writeUTF(NO_INTERNET_ACCESS_REPORTS_KEY + SEPARATOR + Integer.toString(config.numNoInternetAccessReports) + NL); out.writeUTF(VALIDATED_INTERNET_ACCESS_KEY + SEPARATOR + Boolean.toString(config.validatedInternetAccess) + NL); out.writeUTF(EPHEMERAL_KEY + SEPARATOR + Boolean.toString(config.ephemeral) + NL); if (config.creationTime != null) { out.writeUTF(CREATION_TIME_KEY + SEPARATOR + config.creationTime + NL); } if (config.updateTime != null) { out.writeUTF(UPDATE_TIME_KEY + SEPARATOR + config.updateTime + NL); } if (config.peerWifiConfiguration != null) { out.writeUTF(PEER_CONFIGURATION_KEY + SEPARATOR + config.peerWifiConfiguration + NL); } out.writeUTF(NUM_CONNECTION_FAILURES_KEY + SEPARATOR + Integer.toString(config.numConnectionFailures) + NL); out.writeUTF(NUM_AUTH_FAILURES_KEY + SEPARATOR + Integer.toString(config.numAuthFailures) + NL); out.writeUTF(NUM_IP_CONFIG_FAILURES_KEY + SEPARATOR + Integer.toString(config.numIpConfigFailures) + NL); out.writeUTF(SCORER_OVERRIDE_KEY + SEPARATOR + Integer.toString(config.numScorerOverride) + NL); out.writeUTF(SCORER_OVERRIDE_AND_SWITCH_KEY + SEPARATOR + Integer.toString(config.numScorerOverrideAndSwitchedNetwork) + NL); out.writeUTF(NUM_ASSOCIATION_KEY + SEPARATOR + Integer.toString(config.numAssociation) + NL); out.writeUTF(JOIN_ATTEMPT_BOOST_KEY + SEPARATOR + Integer.toString(config.autoJoinUseAggressiveJoinAttemptThreshold)+ NL); //out.writeUTF(BLACKLIST_MILLI_KEY + SEPARATOR + // Long.toString(config.blackListTimestamp) + NL); out.writeUTF(CREATOR_UID_KEY + SEPARATOR + Integer.toString(config.creatorUid) + NL); out.writeUTF(CONNECT_UID_KEY + SEPARATOR + Integer.toString(config.lastConnectUid) + NL); out.writeUTF(UPDATE_UID_KEY + SEPARATOR + Integer.toString(config.lastUpdateUid) + NL); out.writeUTF(CREATOR_NAME_KEY + SEPARATOR + config.creatorName + NL); out.writeUTF(UPDATE_NAME_KEY + SEPARATOR + config.lastUpdateName + NL); out.writeUTF(USER_APPROVED_KEY + SEPARATOR + Integer.toString(config.userApproved) + NL); String allowedKeyManagementString = makeString(config.allowedKeyManagement, WifiConfiguration.KeyMgmt.strings); out.writeUTF(AUTH_KEY + SEPARATOR + allowedKeyManagementString + NL); if (config.connectChoices != null) { for (String key : config.connectChoices.keySet()) { Integer choice = config.connectChoices.get(key); out.writeUTF(CHOICE_KEY + SEPARATOR + key + "=" + choice.toString() + NL); } } if (config.linkedConfigurations != null) { log("writeKnownNetworkHistory write linked " + config.linkedConfigurations.size()); for (String key : config.linkedConfigurations.keySet()) { out.writeUTF(LINK_KEY + SEPARATOR + key + NL); } } String macAddress = config.defaultGwMacAddress; if (macAddress != null) { out.writeUTF(DEFAULT_GW_KEY + SEPARATOR + macAddress + NL); } if (getScanDetailCache(config) != null) { for (ScanDetail scanDetail : getScanDetailCache(config).values()) { ScanResult result = scanDetail.getScanResult(); out.writeUTF(BSSID_KEY + SEPARATOR + result.BSSID + NL); out.writeUTF(FREQ_KEY + SEPARATOR + Integer.toString(result.frequency) + NL); out.writeUTF(RSSI_KEY + SEPARATOR + Integer.toString(result.level) + NL); out.writeUTF(BSSID_STATUS_KEY + SEPARATOR + Integer.toString(result.autoJoinStatus) + NL); //if (result.seen != 0) { // out.writeUTF(MILLI_KEY + SEPARATOR + Long.toString(result.seen) // + NL); //} out.writeUTF(BSSID_KEY_END + NL); } } if (config.lastFailure != null) { out.writeUTF(FAILURE_KEY + SEPARATOR + config.lastFailure + NL); } out.writeUTF(NL); // Add extra blank lines for clarity out.writeUTF(NL); out.writeUTF(NL); } if (mDeletedSSIDs != null && mDeletedSSIDs.size() > 0) { for (Long i : mDeletedSSIDs) { out.writeUTF(DELETED_CRC32_KEY); out.writeUTF(String.valueOf(i)); out.writeUTF(NL); } } if (mDeletedEphemeralSSIDs != null && mDeletedEphemeralSSIDs.size() > 0) { for (String ssid : mDeletedEphemeralSSIDs) { out.writeUTF(DELETED_EPHEMERAL_KEY); out.writeUTF(ssid); out.writeUTF(NL); } } } }); } public void setLastSelectedConfiguration(int netId) { if (VDBG) { loge("setLastSelectedConfiguration " + Integer.toString(netId)); } if (netId == WifiConfiguration.INVALID_NETWORK_ID) { lastSelectedConfiguration = null; } else { WifiConfiguration selected = getWifiConfiguration(netId); if (selected == null) { lastSelectedConfiguration = null; } else { lastSelectedConfiguration = selected.configKey(); selected.numConnectionFailures = 0; selected.numIpConfigFailures = 0; selected.numAuthFailures = 0; selected.numNoInternetAccessReports = 0; if (VDBG) { loge("setLastSelectedConfiguration now: " + lastSelectedConfiguration); } } } } public String getLastSelectedConfiguration() { return lastSelectedConfiguration; } public boolean isLastSelectedConfiguration(WifiConfiguration config) { return (lastSelectedConfiguration != null && config != null && lastSelectedConfiguration.equals(config.configKey())); } private void readNetworkHistory() { if (showNetworks) { localLog("readNetworkHistory() path:" + networkHistoryConfigFile); } try (DataInputStream in = new DataInputStream(new BufferedInputStream( new FileInputStream(networkHistoryConfigFile)))) { String bssid = null; String ssid = null; int freq = 0; int status = 0; long seen = 0; int rssi = WifiConfiguration.INVALID_RSSI; String caps = null; WifiConfiguration config = null; while (true) { String line = in.readUTF(); if (line == null) { break; } int colon = line.indexOf(':'); if (colon < 0) { continue; } String key = line.substring(0, colon).trim(); String value = line.substring(colon + 1).trim(); if (key.equals(CONFIG_KEY)) { config = mConfiguredNetworks.getByConfigKey(value); // skip reading that configuration data // since we don't have a corresponding network ID if (config == null) { localLog("readNetworkHistory didnt find netid for hash=" + Integer.toString(value.hashCode()) + " key: " + value); mLostConfigsDbg.add(value); continue; } else { // After an upgrade count old connections as owned by system if (config.creatorName == null || config.lastUpdateName == null) { config.creatorName = mContext.getPackageManager().getNameForUid(Process.SYSTEM_UID); config.lastUpdateName = config.creatorName; if (DBG) Log.w(TAG, "Upgrading network " + config.networkId + " to " + config.creatorName); } } } else if (config != null) { switch (key) { case SSID_KEY: ssid = value; if (config.SSID != null && !config.SSID.equals(ssid)) { loge("Error parsing network history file, mismatched SSIDs"); config = null; //error ssid = null; } else { config.SSID = ssid; } break; case FQDN_KEY: // Check for literal 'null' to be backwards compatible. config.FQDN = value.equals("null") ? null : value; break; case DEFAULT_GW_KEY: config.defaultGwMacAddress = value; break; case STATUS_KEY: config.autoJoinStatus = Integer.parseInt(value); break; case SUPPLICANT_DISABLE_REASON_KEY: config.disableReason = Integer.parseInt(value); break; case SELF_ADDED_KEY: config.selfAdded = Boolean.parseBoolean(value); break; case DID_SELF_ADD_KEY: config.didSelfAdd = Boolean.parseBoolean(value); break; case NO_INTERNET_ACCESS_REPORTS_KEY: config.numNoInternetAccessReports = Integer.parseInt(value); break; case VALIDATED_INTERNET_ACCESS_KEY: config.validatedInternetAccess = Boolean.parseBoolean(value); break; case CREATION_TIME_KEY: config.creationTime = value; break; case UPDATE_TIME_KEY: config.updateTime = value; break; case EPHEMERAL_KEY: config.ephemeral = Boolean.parseBoolean(value); break; case CREATOR_UID_KEY: config.creatorUid = Integer.parseInt(value); break; case BLACKLIST_MILLI_KEY: config.blackListTimestamp = Long.parseLong(value); break; case NUM_CONNECTION_FAILURES_KEY: config.numConnectionFailures = Integer.parseInt(value); break; case NUM_IP_CONFIG_FAILURES_KEY: config.numIpConfigFailures = Integer.parseInt(value); break; case NUM_AUTH_FAILURES_KEY: config.numIpConfigFailures = Integer.parseInt(value); break; case SCORER_OVERRIDE_KEY: config.numScorerOverride = Integer.parseInt(value); break; case SCORER_OVERRIDE_AND_SWITCH_KEY: config.numScorerOverrideAndSwitchedNetwork = Integer.parseInt(value); break; case NUM_ASSOCIATION_KEY: config.numAssociation = Integer.parseInt(value); break; case JOIN_ATTEMPT_BOOST_KEY: config.autoJoinUseAggressiveJoinAttemptThreshold = Integer.parseInt(value); break; case CONNECT_UID_KEY: config.lastConnectUid = Integer.parseInt(value); break; case UPDATE_UID_KEY: config.lastUpdateUid = Integer.parseInt(value); break; case FAILURE_KEY: config.lastFailure = value; break; case PEER_CONFIGURATION_KEY: config.peerWifiConfiguration = value; break; case CHOICE_KEY: String configKey = ""; int choice = 0; Matcher match = mConnectChoice.matcher(value); if (!match.find()) { if (DBG) Log.d(TAG, "WifiConfigStore: connectChoice: " + " Couldnt match pattern : " + value); } else { configKey = match.group(1); try { choice = Integer.parseInt(match.group(2)); } catch (NumberFormatException e) { choice = 0; } if (choice > 0) { if (config.connectChoices == null) { config.connectChoices = new HashMap<>(); } config.connectChoices.put(configKey, choice); } } break; case LINK_KEY: if (config.linkedConfigurations == null) { config.linkedConfigurations = new HashMap<>(); } else { config.linkedConfigurations.put(value, -1); } break; case BSSID_KEY: status = 0; ssid = null; bssid = null; freq = 0; seen = 0; rssi = WifiConfiguration.INVALID_RSSI; caps = ""; break; case RSSI_KEY: rssi = Integer.parseInt(value); break; case BSSID_STATUS_KEY: status = Integer.parseInt(value); break; case FREQ_KEY: freq = Integer.parseInt(value); break; case DATE_KEY: /* * when reading the configuration from file we don't update the date * so as to avoid reading back stale or non-sensical data that would * depend on network time. * The date of a WifiConfiguration should only come from actual scan result. * String s = key.replace(FREQ_KEY, ""); seen = Integer.getInteger(s); */ break; case BSSID_KEY_END: if ((bssid != null) && (ssid != null)) { if (getScanDetailCache(config) != null) { WifiSsid wssid = WifiSsid.createFromAsciiEncoded(ssid); ScanDetail scanDetail = new ScanDetail(wssid, bssid, caps, rssi, freq, (long) 0, seen); getScanDetailCache(config).put(scanDetail); scanDetail.getScanResult().autoJoinStatus = status; } } break; case DELETED_CRC32_KEY: mDeletedSSIDs.add(Long.parseLong(value)); break; case DELETED_EPHEMERAL_KEY: if (!TextUtils.isEmpty(value)) { mDeletedEphemeralSSIDs.add(value); } break; case CREATOR_NAME_KEY: config.creatorName = value; break; case UPDATE_NAME_KEY: config.lastUpdateName = value; break; case USER_APPROVED_KEY: config.userApproved = Integer.parseInt(value); break; } } } } catch (NumberFormatException e) { Log.e(TAG, "readNetworkHistory: failed to read, revert to default, " + e, e); } catch (EOFException e) { // do nothing } catch (IOException e) { Log.e(TAG, "readNetworkHistory: No config file, revert to default, " + e, e); } } private void readAutoJoinConfig() { try (BufferedReader reader = new BufferedReader(new FileReader(autoJoinConfigFile))) { for (String key = reader.readLine(); key != null; key = reader.readLine()) { Log.d(TAG, "readAutoJoinConfig line: " + key); int split = key.indexOf(':'); if (split < 0) { continue; } String name = key.substring(0, split); Object reference = sKeyMap.get(name); if (reference == null) { continue; } try { int value = Integer.parseInt(key.substring(split+1).trim()); if (reference.getClass() == AtomicBoolean.class) { ((AtomicBoolean)reference).set(value != 0); } else { ((AtomicInteger)reference).set(value); } Log.d(TAG,"readAutoJoinConfig: " + name + " = " + value); } catch (NumberFormatException nfe) { Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); } } } catch (IOException e) { loge("readAutoJoinStatus: Error parsing configuration" + e); } } private void writeIpAndProxyConfigurations() { final SparseArray networks = new SparseArray(); for(WifiConfiguration config : mConfiguredNetworks.values()) { if (!config.ephemeral && config.autoJoinStatus != WifiConfiguration.AUTO_JOIN_DELETED) { networks.put(configKey(config), config.getIpConfiguration()); } } super.writeIpAndProxyConfigurations(ipConfigFile, networks); } private void readIpAndProxyConfigurations() { SparseArray networks = super.readIpAndProxyConfigurations(ipConfigFile); if (networks == null || networks.size() == 0) { // IpConfigStore.readIpAndProxyConfigurations has already logged an error. return; } for (int i = 0; i < networks.size(); i++) { int id = networks.keyAt(i); WifiConfiguration config = mConfiguredNetworks.getByConfigKeyID(id); // This is the only place the map is looked up through a (dangerous) hash-value! if (config == null || config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || config.ephemeral) { loge("configuration found for missing network, nid=" + id +", ignored, networks.size=" + Integer.toString(networks.size())); } else { config.setIpConfiguration(networks.valueAt(i)); } } } /* * Convert string to Hexadecimal before passing to wifi native layer * In native function "doCommand()" have trouble in converting Unicode character string to UTF8 * conversion to hex is required because SSIDs can have space characters in them; * and that can confuses the supplicant because it uses space charaters as delimiters */ public static String encodeSSID(String str){ return Utils.toHex(removeDoubleQuotes(str).getBytes(StandardCharsets.UTF_8)); } private NetworkUpdateResult addOrUpdateNetworkNative(WifiConfiguration config, int uid) { /* * If the supplied networkId is INVALID_NETWORK_ID, we create a new empty * network configuration. Otherwise, the networkId should * refer to an existing configuration. */ if (VDBG) localLog("addOrUpdateNetworkNative " + config.getPrintableSsid()); if (config.isPasspoint() && !mMOManager.isEnabled()) { Log.e(TAG, "Passpoint is not enabled"); return new NetworkUpdateResult(INVALID_NETWORK_ID); } int netId = config.networkId; boolean newNetwork = false; // networkId of INVALID_NETWORK_ID means we want to create a new network if (netId == INVALID_NETWORK_ID) { WifiConfiguration savedConfig = mConfiguredNetworks.getByConfigKey(config.configKey()); if (savedConfig != null) { netId = savedConfig.networkId; } else { if (mMOManager.getHomeSP(config.FQDN) != null) { loge("addOrUpdateNetworkNative passpoint " + config.FQDN + " was found, but no network Id"); } newNetwork = true; netId = mWifiNative.addNetwork(); if (netId < 0) { loge("Failed to add a network!"); return new NetworkUpdateResult(INVALID_NETWORK_ID); } else { loge("addOrUpdateNetworkNative created netId=" + netId); } } } boolean updateFailed = true; setVariables: { if (config.SSID != null && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.ssidVarName, encodeSSID(config.SSID))) { loge("failed to set SSID: "+config.SSID); break setVariables; } if (config.isPasspoint()) { if (!mWifiNative.setNetworkVariable( netId, idStringVarName, '"' + config.FQDN + '"')) { loge("failed to set id_str: " + config.FQDN); break setVariables; } } if (config.BSSID != null) { log("Setting BSSID for " + config.configKey() + " to " + config.BSSID); if (!mWifiNative.setNetworkVariable( netId, WifiConfiguration.bssidVarName, config.BSSID)) { loge("failed to set BSSID: " + config.BSSID); break setVariables; } } String allowedKeyManagementString = makeString(config.allowedKeyManagement, WifiConfiguration.KeyMgmt.strings); if (config.allowedKeyManagement.cardinality() != 0 && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.KeyMgmt.varName, allowedKeyManagementString)) { loge("failed to set key_mgmt: "+ allowedKeyManagementString); break setVariables; } String allowedProtocolsString = makeString(config.allowedProtocols, WifiConfiguration.Protocol.strings); if (config.allowedProtocols.cardinality() != 0 && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.Protocol.varName, allowedProtocolsString)) { loge("failed to set proto: "+ allowedProtocolsString); break setVariables; } String allowedAuthAlgorithmsString = makeString(config.allowedAuthAlgorithms, WifiConfiguration.AuthAlgorithm.strings); if (config.allowedAuthAlgorithms.cardinality() != 0 && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.AuthAlgorithm.varName, allowedAuthAlgorithmsString)) { loge("failed to set auth_alg: "+ allowedAuthAlgorithmsString); break setVariables; } String allowedPairwiseCiphersString = makeString(config.allowedPairwiseCiphers, WifiConfiguration.PairwiseCipher.strings); if (config.allowedPairwiseCiphers.cardinality() != 0 && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.PairwiseCipher.varName, allowedPairwiseCiphersString)) { loge("failed to set pairwise: "+ allowedPairwiseCiphersString); break setVariables; } String allowedGroupCiphersString = makeString(config.allowedGroupCiphers, WifiConfiguration.GroupCipher.strings); if (config.allowedGroupCiphers.cardinality() != 0 && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.GroupCipher.varName, allowedGroupCiphersString)) { loge("failed to set group: "+ allowedGroupCiphersString); break setVariables; } // Prevent client screw-up by passing in a WifiConfiguration we gave it // by preventing "*" as a key. if (config.preSharedKey != null && !config.preSharedKey.equals("*") && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.pskVarName, config.preSharedKey)) { loge("failed to set psk"); break setVariables; } boolean hasSetKey = false; if (config.wepKeys != null) { for (int i = 0; i < config.wepKeys.length; i++) { // Prevent client screw-up by passing in a WifiConfiguration we gave it // by preventing "*" as a key. if (config.wepKeys[i] != null && !config.wepKeys[i].equals("*")) { if (!mWifiNative.setNetworkVariable( netId, WifiConfiguration.wepKeyVarNames[i], config.wepKeys[i])) { loge("failed to set wep_key" + i + ": " + config.wepKeys[i]); break setVariables; } hasSetKey = true; } } } if (hasSetKey) { if (!mWifiNative.setNetworkVariable( netId, WifiConfiguration.wepTxKeyIdxVarName, Integer.toString(config.wepTxKeyIndex))) { loge("failed to set wep_tx_keyidx: " + config.wepTxKeyIndex); break setVariables; } } if (!mWifiNative.setNetworkVariable( netId, WifiConfiguration.priorityVarName, Integer.toString(config.priority))) { loge(config.SSID + ": failed to set priority: " +config.priority); break setVariables; } if (config.hiddenSSID && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.hiddenSSIDVarName, Integer.toString(config.hiddenSSID ? 1 : 0))) { loge(config.SSID + ": failed to set hiddenSSID: "+ config.hiddenSSID); break setVariables; } if (config.requirePMF && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.pmfVarName, "2")) { loge(config.SSID + ": failed to set requirePMF: "+ config.requirePMF); break setVariables; } if (config.updateIdentifier != null && !mWifiNative.setNetworkVariable( netId, WifiConfiguration.updateIdentiferVarName, config.updateIdentifier)) { loge(config.SSID + ": failed to set updateIdentifier: "+ config.updateIdentifier); break setVariables; } if (config.enterpriseConfig != null && config.enterpriseConfig.getEapMethod() != WifiEnterpriseConfig.Eap.NONE) { WifiEnterpriseConfig enterpriseConfig = config.enterpriseConfig; if (needsKeyStore(enterpriseConfig)) { /** * Keyguard settings may eventually be controlled by device policy. * We check here if keystore is unlocked before installing * credentials. * TODO: Do we need a dialog here ? */ if (mKeyStore.state() != KeyStore.State.UNLOCKED) { loge(config.SSID + ": key store is locked"); break setVariables; } try { /* config passed may include only fields being updated. * In order to generate the key id, fetch uninitialized * fields from the currently tracked configuration */ WifiConfiguration currentConfig = mConfiguredNetworks.get(netId); String keyId = config.getKeyIdForCredentials(currentConfig); if (!installKeys(enterpriseConfig, keyId)) { loge(config.SSID + ": failed to install keys"); break setVariables; } } catch (IllegalStateException e) { loge(config.SSID + " invalid config for key installation"); break setVariables; } } HashMap enterpriseFields = enterpriseConfig.getFields(); for (String key : enterpriseFields.keySet()) { String value = enterpriseFields.get(key); if (key.equals("password") && value != null && value.equals("*")) { // No need to try to set an obfuscated password, which will fail continue; } if (key.equals(WifiEnterpriseConfig.REALM_KEY) || key.equals(WifiEnterpriseConfig.PLMN_KEY)) { // No need to save realm or PLMN in supplicant continue; } if (!mWifiNative.setNetworkVariable( netId, key, value)) { removeKeys(enterpriseConfig); loge(config.SSID + ": failed to set " + key + ": " + value); break setVariables; } } } updateFailed = false; } // End of setVariables if (updateFailed) { if (newNetwork) { mWifiNative.removeNetwork(netId); loge("Failed to set a network variable, removed network: " + netId); } return new NetworkUpdateResult(INVALID_NETWORK_ID); } /* An update of the network variables requires reading them * back from the supplicant to update mConfiguredNetworks. * This is because some of the variables (SSID, wep keys & * passphrases) reflect different values when read back than * when written. For example, wep key is stored as * irrespective * of the value sent to the supplicant */ WifiConfiguration currentConfig = mConfiguredNetworks.get(netId); if (currentConfig == null) { currentConfig = new WifiConfiguration(); currentConfig.setIpAssignment(IpAssignment.DHCP); currentConfig.setProxySettings(ProxySettings.NONE); currentConfig.networkId = netId; if (config != null) { // Carry over the creation parameters currentConfig.selfAdded = config.selfAdded; currentConfig.didSelfAdd = config.didSelfAdd; currentConfig.ephemeral = config.ephemeral; currentConfig.autoJoinUseAggressiveJoinAttemptThreshold = config.autoJoinUseAggressiveJoinAttemptThreshold; currentConfig.lastConnectUid = config.lastConnectUid; currentConfig.lastUpdateUid = config.lastUpdateUid; currentConfig.creatorUid = config.creatorUid; currentConfig.creatorName = config.creatorName; currentConfig.lastUpdateName = config.lastUpdateName; currentConfig.peerWifiConfiguration = config.peerWifiConfiguration; currentConfig.FQDN = config.FQDN; currentConfig.providerFriendlyName = config.providerFriendlyName; currentConfig.roamingConsortiumIds = config.roamingConsortiumIds; currentConfig.validatedInternetAccess = config.validatedInternetAccess; currentConfig.numNoInternetAccessReports = config.numNoInternetAccessReports; currentConfig.updateTime = config.updateTime; currentConfig.creationTime = config.creationTime; } if (DBG) { log("created new config netId=" + Integer.toString(netId) + " uid=" + Integer.toString(currentConfig.creatorUid) + " name=" + currentConfig.creatorName); } } /* save HomeSP object for passpoint networks */ HomeSP homeSP = null; if (config.isPasspoint()) { try { Credential credential = new Credential(config.enterpriseConfig, mKeyStore, !newNetwork); HashSet roamingConsortiumIds = new HashSet(); for (Long roamingConsortiumId : config.roamingConsortiumIds) { roamingConsortiumIds.add(roamingConsortiumId); } homeSP = new HomeSP(Collections.emptyMap(), config.FQDN, roamingConsortiumIds, Collections.emptySet(), Collections.emptySet(), Collections.emptyList(), config.providerFriendlyName, null, credential); log("created a homeSP object for " + config.networkId + ":" + config.SSID); /* fix enterprise config properties for passpoint */ currentConfig.enterpriseConfig.setRealm(config.enterpriseConfig.getRealm()); currentConfig.enterpriseConfig.setPlmn(config.enterpriseConfig.getPlmn()); } catch (IOException ioe) { Log.e(TAG, "Failed to create Passpoint config: " + ioe); return new NetworkUpdateResult(INVALID_NETWORK_ID); } } if (uid != WifiConfiguration.UNKNOWN_UID) { if (newNetwork) { currentConfig.creatorUid = uid; } else { currentConfig.lastUpdateUid = uid; } } // For debug, record the time the configuration was modified StringBuilder sb = new StringBuilder(); sb.append("time="); Calendar c = Calendar.getInstance(); c.setTimeInMillis(System.currentTimeMillis()); sb.append(String.format("%tm-%td %tH:%tM:%tS.%tL", c, c, c, c, c, c)); if (newNetwork) { currentConfig.dirty = true; currentConfig.creationTime = sb.toString(); } else { currentConfig.updateTime = sb.toString(); } if (currentConfig.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED) { // Make sure the configuration is not deleted anymore since we just // added or modified it. currentConfig.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); currentConfig.selfAdded = false; currentConfig.didSelfAdd = false; if (DBG) { log("remove deleted status netId=" + Integer.toString(netId) + " " + currentConfig.configKey()); } } if (currentConfig.status == WifiConfiguration.Status.ENABLED) { // Make sure autojoin remain in sync with user modifying the configuration currentConfig.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); } if (currentConfig.configKey().equals(getLastSelectedConfiguration()) && currentConfig.ephemeral) { // Make the config non-ephemeral since the user just explicitly clicked it. currentConfig.ephemeral = false; if (DBG) log("remove ephemeral status netId=" + Integer.toString(netId) + " " + currentConfig.configKey()); } if (VDBG) log("will read network variables netId=" + Integer.toString(netId)); readNetworkVariables(currentConfig); // Persist configuration paramaters that are not saved by supplicant. if (config.lastUpdateName != null) { currentConfig.lastUpdateName = config.lastUpdateName; } if (config.lastUpdateUid != WifiConfiguration.UNKNOWN_UID) { currentConfig.lastUpdateUid = config.lastUpdateUid; } mConfiguredNetworks.put(netId, currentConfig); NetworkUpdateResult result = writeIpAndProxyConfigurationsOnChange(currentConfig, config); result.setIsNewNetwork(newNetwork); result.setNetworkId(netId); if (homeSP != null) { writePasspointConfigs(null, homeSP); } writeKnownNetworkHistory(false); return result; } public WifiConfiguration getWifiConfigForHomeSP(HomeSP homeSP) { WifiConfiguration config = mConfiguredNetworks.getByFQDN(homeSP.getFQDN()); if (config == null) { Log.e(TAG, "Could not find network for homeSP " + homeSP.getFQDN()); } return config; } private HomeSP getHomeSPForConfig(WifiConfiguration config) { WifiConfiguration storedConfig = mConfiguredNetworks.get(config.networkId); return storedConfig != null && storedConfig.isPasspoint() ? mMOManager.getHomeSP(storedConfig.FQDN) : null; } public ScanDetailCache getScanDetailCache(WifiConfiguration config) { if (config == null) return null; ScanDetailCache cache = mScanDetailCaches.get(config.networkId); if (cache == null && config.networkId != WifiConfiguration.INVALID_NETWORK_ID) { cache = new ScanDetailCache(config); mScanDetailCaches.put(config.networkId, cache); } return cache; } /** * This function run thru the Saved WifiConfigurations and check if some should be linked. * @param config */ public void linkConfiguration(WifiConfiguration config) { if (getScanDetailCache(config) != null && getScanDetailCache(config).size() > 6) { // Ignore configurations with large number of BSSIDs return; } if (!config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { // Only link WPA_PSK config return; } for (WifiConfiguration link : mConfiguredNetworks.values()) { boolean doLink = false; if (link.configKey().equals(config.configKey())) { continue; } if (link.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || link.ephemeral) { continue; } // Autojoin will be allowed to dynamically jump from a linked configuration // to another, hence only link configurations that have equivalent level of security if (!link.allowedKeyManagement.equals(config.allowedKeyManagement)) { continue; } ScanDetailCache linkedScanDetailCache = getScanDetailCache(link); if (linkedScanDetailCache != null && linkedScanDetailCache.size() > 6) { // Ignore configurations with large number of BSSIDs continue; } if (config.defaultGwMacAddress != null && link.defaultGwMacAddress != null) { // If both default GW are known, link only if they are equal if (config.defaultGwMacAddress.equals(link.defaultGwMacAddress)) { if (VDBG) { loge("linkConfiguration link due to same gw " + link.SSID + " and " + config.SSID + " GW " + config.defaultGwMacAddress); } doLink = true; } } else { // We do not know BOTH default gateways hence we will try to link // hoping that WifiConfigurations are indeed behind the same gateway. // once both WifiConfiguration have been tried and thus once both efault gateways // are known we will revisit the choice of linking them if ((getScanDetailCache(config) != null) && (getScanDetailCache(config).size() <= 6)) { for (String abssid : getScanDetailCache(config).keySet()) { for (String bbssid : linkedScanDetailCache.keySet()) { if (VVDBG) { loge("linkConfiguration try to link due to DBDC BSSID match " + link.SSID + " and " + config.SSID + " bssida " + abssid + " bssidb " + bbssid); } if (abssid.regionMatches(true, 0, bbssid, 0, 16)) { // If first 16 ascii characters of BSSID matches, // we assume this is a DBDC doLink = true; } } } } } if (doLink == true && onlyLinkSameCredentialConfigurations) { String apsk = readNetworkVariableFromSupplicantFile(link.SSID, "psk"); String bpsk = readNetworkVariableFromSupplicantFile(config.SSID, "psk"); if (apsk == null || bpsk == null || TextUtils.isEmpty(apsk) || TextUtils.isEmpty(apsk) || apsk.equals("*") || apsk.equals(DELETED_CONFIG_PSK) || !apsk.equals(bpsk)) { doLink = false; } } if (doLink) { if (VDBG) { loge("linkConfiguration: will link " + link.configKey() + " and " + config.configKey()); } if (link.linkedConfigurations == null) { link.linkedConfigurations = new HashMap(); } if (config.linkedConfigurations == null) { config.linkedConfigurations = new HashMap(); } if (link.linkedConfigurations.get(config.configKey()) == null) { link.linkedConfigurations.put(config.configKey(), Integer.valueOf(1)); link.dirty = true; } if (config.linkedConfigurations.get(link.configKey()) == null) { config.linkedConfigurations.put(link.configKey(), Integer.valueOf(1)); config.dirty = true; } } else { if (link.linkedConfigurations != null && (link.linkedConfigurations.get(config.configKey()) != null)) { if (VDBG) { loge("linkConfiguration: un-link " + config.configKey() + " from " + link.configKey()); } link.dirty = true; link.linkedConfigurations.remove(config.configKey()); } if (config.linkedConfigurations != null && (config.linkedConfigurations.get(link.configKey()) != null)) { if (VDBG) { loge("linkConfiguration: un-link " + link.configKey() + " from " + config.configKey()); } config.dirty = true; config.linkedConfigurations.remove(link.configKey()); } } } } public HashSet makeChannelList(WifiConfiguration config, int age, boolean restrict) { if (config == null) return null; long now_ms = System.currentTimeMillis(); HashSet channels = new HashSet(); //get channels for this configuration, if there are at least 2 BSSIDs if (getScanDetailCache(config) == null && config.linkedConfigurations == null) { return null; } if (VDBG) { StringBuilder dbg = new StringBuilder(); dbg.append("makeChannelList age=" + Integer.toString(age) + " for " + config.configKey() + " max=" + maxNumActiveChannelsForPartialScans); if (getScanDetailCache(config) != null) { dbg.append(" bssids=" + getScanDetailCache(config).size()); } if (config.linkedConfigurations != null) { dbg.append(" linked=" + config.linkedConfigurations.size()); } loge(dbg.toString()); } int numChannels = 0; if (getScanDetailCache(config) != null && getScanDetailCache(config).size() > 0) { for (ScanDetail scanDetail : getScanDetailCache(config).values()) { ScanResult result = scanDetail.getScanResult(); //TODO : cout active and passive channels separately if (numChannels > maxNumActiveChannelsForPartialScans.get()) { break; } if (VDBG) { boolean test = (now_ms - result.seen) < age; loge("has " + result.BSSID + " freq=" + Integer.toString(result.frequency) + " age=" + Long.toString(now_ms - result.seen) + " ?=" + test); } if (((now_ms - result.seen) < age)/*||(!restrict || result.is24GHz())*/) { channels.add(result.frequency); numChannels++; } } } //get channels for linked configurations if (config.linkedConfigurations != null) { for (String key : config.linkedConfigurations.keySet()) { WifiConfiguration linked = getWifiConfiguration(key); if (linked == null) continue; if (getScanDetailCache(linked) == null) { continue; } for (ScanDetail scanDetail : getScanDetailCache(linked).values()) { ScanResult result = scanDetail.getScanResult(); if (VDBG) { loge("has link: " + result.BSSID + " freq=" + Integer.toString(result.frequency) + " age=" + Long.toString(now_ms - result.seen)); } if (numChannels > maxNumActiveChannelsForPartialScans.get()) { break; } if (((now_ms - result.seen) < age)/*||(!restrict || result.is24GHz())*/) { channels.add(result.frequency); numChannels++; } } } } return channels; } private Map matchPasspointNetworks(ScanDetail scanDetail) { if (!mMOManager.isConfigured()) { return null; } NetworkDetail networkDetail = scanDetail.getNetworkDetail(); if (!networkDetail.hasInterworking()) { return null; } updateAnqpCache(scanDetail, networkDetail.getANQPElements()); Map matches = matchNetwork(scanDetail, true); Log.d(Utils.hs2LogTag(getClass()), scanDetail.getSSID() + " pass 1 matches: " + toMatchString(matches)); return matches; } private Map matchNetwork(ScanDetail scanDetail, boolean query) { NetworkDetail networkDetail = scanDetail.getNetworkDetail(); ANQPData anqpData = mAnqpCache.getEntry(networkDetail); Map anqpElements = anqpData != null ? anqpData.getANQPElements() : null; boolean queried = !query; Collection homeSPs = mMOManager.getLoadedSPs().values(); Map matches = new HashMap<>(homeSPs.size()); Log.d(Utils.hs2LogTag(getClass()), "match nwk " + scanDetail.toKeyString() + ", anqp " + ( anqpData != null ? "present" : "missing" ) + ", query " + query + ", home sps: " + homeSPs.size()); for (HomeSP homeSP : homeSPs) { PasspointMatch match = homeSP.match(networkDetail, anqpElements, mSIMAccessor); Log.d(Utils.hs2LogTag(getClass()), " -- " + homeSP.getFQDN() + ": match " + match + ", queried " + queried); if (match == PasspointMatch.Incomplete && !queried) { if (mAnqpCache.initiate(networkDetail)) { mSupplicantBridge.startANQP(scanDetail); } queried = true; } matches.put(homeSP, match); } return matches; } public void notifyANQPDone(Long bssid, boolean success) { mSupplicantBridge.notifyANQPDone(bssid, success); } public void notifyANQPResponse(ScanDetail scanDetail, Map anqpElements) { updateAnqpCache(scanDetail, anqpElements); if (anqpElements == null || anqpElements.isEmpty()) { return; } scanDetail.propagateANQPInfo(anqpElements); Map matches = matchNetwork(scanDetail, false); Log.d(Utils.hs2LogTag(getClass()), scanDetail.getSSID() + " pass 2 matches: " + toMatchString(matches)); cacheScanResultForPasspointConfigs(scanDetail, matches); } private void updateAnqpCache(ScanDetail scanDetail, Map anqpElements) { NetworkDetail networkDetail = scanDetail.getNetworkDetail(); if (anqpElements == null) { // Try to pull cached data if query failed. ANQPData data = mAnqpCache.getEntry(networkDetail); if (data != null) { scanDetail.propagateANQPInfo(data.getANQPElements()); } return; } mAnqpCache.update(networkDetail, anqpElements); } private static String toMatchString(Map matches) { StringBuilder sb = new StringBuilder(); for (Map.Entry entry : matches.entrySet()) { sb.append(' ').append(entry.getKey().getFQDN()).append("->").append(entry.getValue()); } return sb.toString(); } private void cacheScanResultForPasspointConfigs(ScanDetail scanDetail, Map matches) { for (Map.Entry entry : matches.entrySet()) { PasspointMatch match = entry.getValue(); if (match == PasspointMatch.HomeProvider || match == PasspointMatch.RoamingProvider) { WifiConfiguration config = getWifiConfigForHomeSP(entry.getKey()); if (config != null) { cacheScanResultForConfig(config, scanDetail, entry.getValue()); } else { Log.w(Utils.hs2LogTag(getClass()), "Failed to find config for '" + entry.getKey().getFQDN() + "'"); /* perhaps the configuration was deleted?? */ } } } } private void cacheScanResultForConfig( WifiConfiguration config, ScanDetail scanDetail, PasspointMatch passpointMatch) { ScanResult scanResult = scanDetail.getScanResult(); if (config.autoJoinStatus >= WifiConfiguration.AUTO_JOIN_DELETED) { if (VVDBG) { loge("updateSavedNetworkHistory(): found a deleted, skip it... " + config.configKey()); } // The scan result belongs to a deleted config: // - increment numConfigFound to remember that we found a config // matching for this scan result // - dont do anything since the config was deleted, just skip... return; } ScanDetailCache scanDetailCache = getScanDetailCache(config); if (scanDetailCache == null) { Log.w(TAG, "Could not allocate scan cache for " + config.SSID); return; } // Adding a new BSSID ScanResult result = scanDetailCache.get(scanResult.BSSID); if (result != null) { // transfer the black list status scanResult.autoJoinStatus = result.autoJoinStatus; scanResult.blackListTimestamp = result.blackListTimestamp; scanResult.numIpConfigFailures = result.numIpConfigFailures; scanResult.numConnection = result.numConnection; scanResult.isAutoJoinCandidate = result.isAutoJoinCandidate; } if (config.ephemeral) { // For an ephemeral Wi-Fi config, the ScanResult should be considered // untrusted. scanResult.untrusted = true; } if (scanDetailCache.size() > (maxNumScanCacheEntries + 64)) { long now_dbg = 0; if (VVDBG) { loge(" Will trim config " + config.configKey() + " size " + scanDetailCache.size()); for (ScanDetail sd : scanDetailCache.values()) { loge(" " + sd.getBSSIDString() + " " + sd.getSeen()); } now_dbg = SystemClock.elapsedRealtimeNanos(); } // Trim the scan result cache to maxNumScanCacheEntries entries max // Since this operation is expensive, make sure it is not performed // until the cache has grown significantly above the trim treshold scanDetailCache.trim(maxNumScanCacheEntries); if (VVDBG) { long diff = SystemClock.elapsedRealtimeNanos() - now_dbg; loge(" Finished trimming config, time(ns) " + diff); for (ScanDetail sd : scanDetailCache.values()) { loge(" " + sd.getBSSIDString() + " " + sd.getSeen()); } } } // Add the scan result to this WifiConfiguration if (passpointMatch != null) scanDetailCache.put(scanDetail, passpointMatch, getHomeSPForConfig(config)); else scanDetailCache.put(scanDetail); // Since we added a scan result to this configuration, re-attempt linking linkConfiguration(config); } // Update the WifiConfiguration database with the new scan result // A scan result can be associated to multiple WifiConfigurations public boolean updateSavedNetworkHistory(ScanDetail scanDetail) { ScanResult scanResult = scanDetail.getScanResult(); NetworkDetail networkDetail = scanDetail.getNetworkDetail(); int numConfigFound = 0; if (scanResult == null) return false; String SSID = "\"" + scanResult.SSID + "\""; if (networkDetail.hasInterworking()) { Map matches = matchPasspointNetworks(scanDetail); if (matches != null) { cacheScanResultForPasspointConfigs(scanDetail, matches); return matches.size() != 0; } } for (WifiConfiguration config : mConfiguredNetworks.values()) { boolean found = false; if (config.SSID == null || !config.SSID.equals(SSID)) { // SSID mismatch if (VVDBG) { loge("updateSavedNetworkHistory(): SSID mismatch " + config.configKey() + " SSID=" + config.SSID + " " + SSID); } continue; } if (VDBG) { loge("updateSavedNetworkHistory(): try " + config.configKey() + " SSID=" + config.SSID + " " + scanResult.SSID + " " + scanResult.capabilities + " ajst=" + config.autoJoinStatus); } if (scanResult.capabilities.contains("WEP") && config.configKey().contains("WEP")) { found = true; } else if (scanResult.capabilities.contains("PSK") && config.configKey().contains("PSK")) { found = true; } else if (scanResult.capabilities.contains("EAP") && config.configKey().contains("EAP")) { found = true; } else if (!scanResult.capabilities.contains("WEP") && !scanResult.capabilities.contains("PSK") && !scanResult.capabilities.contains("EAP") && !config.configKey().contains("WEP") && !config.configKey().contains("PSK") && !config.configKey().contains("EAP")) { found = true; } if (found) { numConfigFound ++; cacheScanResultForConfig(config, scanDetail, null); } if (VDBG && found) { String status = ""; if (scanResult.autoJoinStatus > 0) { status = " status=" + Integer.toString(scanResult.autoJoinStatus); } loge(" got known scan result " + scanResult.BSSID + " key : " + config.configKey() + " num: " + Integer.toString(getScanDetailCache(config).size()) + " rssi=" + Integer.toString(scanResult.level) + " freq=" + Integer.toString(scanResult.frequency) + status); } } return numConfigFound != 0; } /* Compare current and new configuration and write to file on change */ private NetworkUpdateResult writeIpAndProxyConfigurationsOnChange( WifiConfiguration currentConfig, WifiConfiguration newConfig) { boolean ipChanged = false; boolean proxyChanged = false; if (VDBG) { loge("writeIpAndProxyConfigurationsOnChange: " + currentConfig.SSID + " -> " + newConfig.SSID + " path: " + ipConfigFile); } switch (newConfig.getIpAssignment()) { case STATIC: if (currentConfig.getIpAssignment() != newConfig.getIpAssignment()) { ipChanged = true; } else { ipChanged = !Objects.equals( currentConfig.getStaticIpConfiguration(), newConfig.getStaticIpConfiguration()); } break; case DHCP: if (currentConfig.getIpAssignment() != newConfig.getIpAssignment()) { ipChanged = true; } break; case UNASSIGNED: /* Ignore */ break; default: loge("Ignore invalid ip assignment during write"); break; } switch (newConfig.getProxySettings()) { case STATIC: case PAC: ProxyInfo newHttpProxy = newConfig.getHttpProxy(); ProxyInfo currentHttpProxy = currentConfig.getHttpProxy(); if (newHttpProxy != null) { proxyChanged = !newHttpProxy.equals(currentHttpProxy); } else { proxyChanged = (currentHttpProxy != null); } break; case NONE: if (currentConfig.getProxySettings() != newConfig.getProxySettings()) { proxyChanged = true; } break; case UNASSIGNED: /* Ignore */ break; default: loge("Ignore invalid proxy configuration during write"); break; } if (ipChanged) { currentConfig.setIpAssignment(newConfig.getIpAssignment()); currentConfig.setStaticIpConfiguration(newConfig.getStaticIpConfiguration()); log("IP config changed SSID = " + currentConfig.SSID); if (currentConfig.getStaticIpConfiguration() != null) { log(" static configuration: " + currentConfig.getStaticIpConfiguration().toString()); } } if (proxyChanged) { currentConfig.setProxySettings(newConfig.getProxySettings()); currentConfig.setHttpProxy(newConfig.getHttpProxy()); log("proxy changed SSID = " + currentConfig.SSID); if (currentConfig.getHttpProxy() != null) { log(" proxyProperties: " + currentConfig.getHttpProxy().toString()); } } if (ipChanged || proxyChanged) { writeIpAndProxyConfigurations(); sendConfiguredNetworksChangedBroadcast(currentConfig, WifiManager.CHANGE_REASON_CONFIG_CHANGE); } return new NetworkUpdateResult(ipChanged, proxyChanged); } /** Returns true if a particular config key needs to be quoted when passed to the supplicant. */ private boolean enterpriseConfigKeyShouldBeQuoted(String key) { switch (key) { case WifiEnterpriseConfig.EAP_KEY: case WifiEnterpriseConfig.ENGINE_KEY: return false; default: return true; } } /** * Read the variables from the supplicant daemon that are needed to * fill in the WifiConfiguration object. * * @param config the {@link WifiConfiguration} object to be filled in. */ private void readNetworkVariables(WifiConfiguration config) { int netId = config.networkId; if (netId < 0) return; /* * TODO: maybe should have a native method that takes an array of * variable names and returns an array of values. But we'd still * be doing a round trip to the supplicant daemon for each variable. */ String value; value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.ssidVarName); if (!TextUtils.isEmpty(value)) { if (value.charAt(0) != '"') { config.SSID = "\"" + WifiSsid.createFromHex(value).toString() + "\""; //TODO: convert a hex string that is not UTF-8 decodable to a P-formatted //supplicant string } else { config.SSID = value; } } else { config.SSID = null; } value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.bssidVarName); if (!TextUtils.isEmpty(value)) { config.BSSID = value; } else { config.BSSID = null; } value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.priorityVarName); config.priority = -1; if (!TextUtils.isEmpty(value)) { try { config.priority = Integer.parseInt(value); } catch (NumberFormatException ignore) { } } value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.hiddenSSIDVarName); config.hiddenSSID = false; if (!TextUtils.isEmpty(value)) { try { config.hiddenSSID = Integer.parseInt(value) != 0; } catch (NumberFormatException ignore) { } } value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.wepTxKeyIdxVarName); config.wepTxKeyIndex = -1; if (!TextUtils.isEmpty(value)) { try { config.wepTxKeyIndex = Integer.parseInt(value); } catch (NumberFormatException ignore) { } } for (int i = 0; i < 4; i++) { value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.wepKeyVarNames[i]); if (!TextUtils.isEmpty(value)) { config.wepKeys[i] = value; } else { config.wepKeys[i] = null; } } value = mWifiNative.getNetworkVariable(netId, WifiConfiguration.pskVarName); if (!TextUtils.isEmpty(value)) { config.preSharedKey = value; } else { config.preSharedKey = null; } readNetworkBitsetVariable(config.networkId, config.allowedProtocols, WifiConfiguration.Protocol.varName, WifiConfiguration.Protocol.strings); readNetworkBitsetVariable(config.networkId, config.allowedKeyManagement, WifiConfiguration.KeyMgmt.varName, WifiConfiguration.KeyMgmt.strings); readNetworkBitsetVariable(config.networkId, config.allowedAuthAlgorithms, WifiConfiguration.AuthAlgorithm.varName, WifiConfiguration.AuthAlgorithm.strings); readNetworkBitsetVariable(config.networkId, config.allowedPairwiseCiphers, WifiConfiguration.PairwiseCipher.varName, WifiConfiguration.PairwiseCipher.strings); readNetworkBitsetVariable(config.networkId, config.allowedGroupCiphers, WifiConfiguration.GroupCipher.varName, WifiConfiguration.GroupCipher.strings); if (config.enterpriseConfig == null) { config.enterpriseConfig = new WifiEnterpriseConfig(); } HashMap enterpriseFields = config.enterpriseConfig.getFields(); for (String key : ENTERPRISE_CONFIG_SUPPLICANT_KEYS) { value = mWifiNative.getNetworkVariable(netId, key); if (!TextUtils.isEmpty(value)) { if (!enterpriseConfigKeyShouldBeQuoted(key)) { value = removeDoubleQuotes(value); } enterpriseFields.put(key, value); } else { enterpriseFields.put(key, EMPTY_VALUE); } } if (migrateOldEapTlsNative(config.enterpriseConfig, netId)) { saveConfig(); } migrateCerts(config.enterpriseConfig); // initializeSoftwareKeystoreFlag(config.enterpriseConfig, mKeyStore); } private static String removeDoubleQuotes(String string) { int length = string.length(); if ((length > 1) && (string.charAt(0) == '"') && (string.charAt(length - 1) == '"')) { return string.substring(1, length - 1); } return string; } private static String makeString(BitSet set, String[] strings) { StringBuffer buf = new StringBuffer(); int nextSetBit = -1; /* Make sure all set bits are in [0, strings.length) to avoid * going out of bounds on strings. (Shouldn't happen, but...) */ set = set.get(0, strings.length); while ((nextSetBit = set.nextSetBit(nextSetBit + 1)) != -1) { buf.append(strings[nextSetBit].replace('_', '-')).append(' '); } // remove trailing space if (set.cardinality() > 0) { buf.setLength(buf.length() - 1); } return buf.toString(); } private int lookupString(String string, String[] strings) { int size = strings.length; string = string.replace('-', '_'); for (int i = 0; i < size; i++) if (string.equals(strings[i])) return i; // if we ever get here, we should probably add the // value to WifiConfiguration to reflect that it's // supported by the WPA supplicant loge("Failed to look-up a string: " + string); return -1; } /* return the allowed key management based on a scan result */ public WifiConfiguration wifiConfigurationFromScanResult(ScanDetail scanDetail) { ScanResult result = scanDetail.getScanResult(); WifiConfiguration config = new WifiConfiguration(); config.SSID = "\"" + result.SSID + "\""; if (VDBG) { loge("WifiConfiguration from scan results " + config.SSID + " cap " + result.capabilities); } if (result.capabilities.contains("WEP")) { config.allowedKeyManagement.set(KeyMgmt.NONE); config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); //? config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED); } if (result.capabilities.contains("PSK")) { config.allowedKeyManagement.set(KeyMgmt.WPA_PSK); } if (result.capabilities.contains("EAP")) { //this is probably wrong, as we don't have a way to enter the enterprise config config.allowedKeyManagement.set(KeyMgmt.WPA_EAP); config.allowedKeyManagement.set(KeyMgmt.IEEE8021X); } /* getScanDetailCache(config).put(scanDetail); */ return config; } /* Returns a unique for a given configuration */ private static int configKey(WifiConfiguration config) { String key = config.configKey(); return key.hashCode(); } void dump(FileDescriptor fd, PrintWriter pw, String[] args) { pw.println("Dump of WifiConfigStore"); pw.println("mLastPriority " + mLastPriority); pw.println("Configured networks"); for (WifiConfiguration conf : getAllConfiguredNetworks()) { pw.println(conf); } pw.println(); if (mLostConfigsDbg != null && mLostConfigsDbg.size() > 0) { pw.println("LostConfigs: "); for (String s : mLostConfigsDbg) { pw.println(s); } } if (mLocalLog != null) { pw.println("WifiConfigStore - Log Begin ----"); mLocalLog.dump(fd, pw, args); pw.println("WifiConfigStore - Log End ----"); } if (mMOManager.isConfigured()) { pw.println("Begin dump of ANQP Cache"); mAnqpCache.dump(pw); pw.println("End dump of ANQP Cache"); } } public String getConfigFile() { return ipConfigFile; } protected void loge(String s) { loge(s, false); } protected void loge(String s, boolean stack) { if (stack) { Log.e(TAG, s + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); } else { Log.e(TAG, s); } } private void logKernelTime() { long kernelTimeMs = System.nanoTime()/(1000*1000); StringBuilder builder = new StringBuilder(); builder.append("kernel time = ").append(kernelTimeMs/1000).append(".").append (kernelTimeMs%1000).append("\n"); localLog(builder.toString()); } protected void log(String s) { Log.d(TAG, s); } private void localLog(String s) { if (mLocalLog != null) { mLocalLog.log(s); } } private void localLog(String s, boolean force) { localLog(s); if (force) loge(s); } private void localLog(String s, int netId) { if (mLocalLog == null) { return; } WifiConfiguration config; synchronized(mConfiguredNetworks) { // !!! Useless synchronization config = mConfiguredNetworks.get(netId); } if (config != null) { mLocalLog.log(s + " " + config.getPrintableSsid() + " " + netId + " status=" + config.status + " key=" + config.configKey()); } else { mLocalLog.log(s + " " + netId); } } // Certificate and private key management for EnterpriseConfig static boolean needsKeyStore(WifiEnterpriseConfig config) { // Has no keys to be installed if (config.getClientCertificate() == null && config.getCaCertificate() == null) return false; return true; } static boolean isHardwareBackedKey(PrivateKey key) { return KeyChain.isBoundKeyAlgorithm(key.getAlgorithm()); } static boolean hasHardwareBackedKey(Certificate certificate) { return KeyChain.isBoundKeyAlgorithm(certificate.getPublicKey().getAlgorithm()); } static boolean needsSoftwareBackedKeyStore(WifiEnterpriseConfig config) { String client = config.getClientCertificateAlias(); if (!TextUtils.isEmpty(client)) { // a valid client certificate is configured // BUGBUG: keyStore.get() never returns certBytes; because it is not // taking WIFI_UID as a parameter. It always looks for certificate // with SYSTEM_UID, and never finds any Wifi certificates. Assuming that // all certificates need software keystore until we get the get() API // fixed. return true; } /* try { if (DBG) Slog.d(TAG, "Loading client certificate " + Credentials .USER_CERTIFICATE + client); CertificateFactory factory = CertificateFactory.getInstance("X.509"); if (factory == null) { Slog.e(TAG, "Error getting certificate factory"); return; } byte[] certBytes = keyStore.get(Credentials.USER_CERTIFICATE + client); if (certBytes != null) { Certificate cert = (X509Certificate) factory.generateCertificate( new ByteArrayInputStream(certBytes)); if (cert != null) { mNeedsSoftwareKeystore = hasHardwareBackedKey(cert); if (DBG) Slog.d(TAG, "Loaded client certificate " + Credentials .USER_CERTIFICATE + client); if (DBG) Slog.d(TAG, "It " + (mNeedsSoftwareKeystore ? "needs" : "does not need" ) + " software key store"); } else { Slog.d(TAG, "could not generate certificate"); } } else { Slog.e(TAG, "Could not load client certificate " + Credentials .USER_CERTIFICATE + client); mNeedsSoftwareKeystore = true; } } catch(CertificateException e) { Slog.e(TAG, "Could not read certificates"); mCaCert = null; mClientCertificate = null; } */ return false; } boolean isNetworkConfigured(WifiConfiguration config) { // Check if either we have a network Id or a WifiConfiguration // matching the one we are trying to add. if(config.networkId != INVALID_NETWORK_ID) { return (mConfiguredNetworks.get(config.networkId) != null); } return (mConfiguredNetworks.getByConfigKey(config.configKey()) != null); } /** * Checks if uid has access to modify the configuration corresponding to networkId. * * Factors involved in modifiability of a config are as follows. * If uid is a Device Owner app then it has full control over the device, including WiFi * configs. * If the modification is only for administrative annotation (e.g. when connecting) or the * config is not lockdown eligible (currently that means any config not last updated by the DO) * then the creator of config or an app holding OVERRIDE_CONFIG_WIFI can modify the config. * If the config is lockdown eligible and the modification is substantial (not annotation) * then the requirement to be able to modify the config by the uid is as follows: * a) the uid has to hold OVERRIDE_CONFIG_WIFI and * b) the lockdown feature should be disabled. */ boolean canModifyNetwork(int uid, int networkId, boolean onlyAnnotate) { WifiConfiguration config = mConfiguredNetworks.get(networkId); if (config == null) { loge("canModifyNetwork: cannot find config networkId " + networkId); return false; } final DevicePolicyManagerInternal dpmi = LocalServices.getService( DevicePolicyManagerInternal.class); final boolean isUidDeviceOwner = dpmi != null && dpmi.isActiveAdminWithPolicy(uid, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); if (isUidDeviceOwner) { // Device Owner has full control over the device, including WiFi Configs return true; } final boolean isCreator = (config.creatorUid == uid); if (onlyAnnotate) { return isCreator || checkConfigOverridePermission(uid); } // Check if device has DPM capability. If it has and dpmi is still null, then we // treat this case with suspicion and bail out. if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpmi == null) { return false; } // WiFi config lockdown related logic. At this point we know uid NOT to be a Device Owner. final boolean isConfigEligibleForLockdown = dpmi != null && dpmi.isActiveAdminWithPolicy( config.creatorUid, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); if (!isConfigEligibleForLockdown) { return isCreator || checkConfigOverridePermission(uid); } final ContentResolver resolver = mContext.getContentResolver(); final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; return !isLockdownFeatureEnabled && checkConfigOverridePermission(uid); } /** * Checks if uid has access to modify config. */ boolean canModifyNetwork(int uid, WifiConfiguration config, boolean onlyAnnotate) { if (config == null) { loge("canModifyNetowrk recieved null configuration"); return false; } // Resolve the correct network id. int netid; if (config.networkId != INVALID_NETWORK_ID){ netid = config.networkId; } else { WifiConfiguration test = mConfiguredNetworks.getByConfigKey(config.configKey()); if (test == null) { return false; } else { netid = test.networkId; } } return canModifyNetwork(uid, netid, onlyAnnotate); } boolean checkConfigOverridePermission(int uid) { try { return (AppGlobals.getPackageManager().checkUidPermission( android.Manifest.permission.OVERRIDE_WIFI_CONFIG, uid) == PackageManager.PERMISSION_GRANTED); } catch (RemoteException e) { return false; } } /** called when CS ask WiFistateMachine to disconnect the current network * because the score is bad. */ void handleBadNetworkDisconnectReport(int netId, WifiInfo info) { /* TODO verify the bad network is current */ WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { if ((info.getRssi() < WifiConfiguration.UNWANTED_BLACKLIST_SOFT_RSSI_24 && info.is24GHz()) || (info.getRssi() < WifiConfiguration.UNWANTED_BLACKLIST_SOFT_RSSI_5 && info.is5GHz())) { // We got disconnected and RSSI was bad, so disable light config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED + WifiConfiguration.UNWANTED_BLACKLIST_SOFT_BUMP); loge("handleBadNetworkDisconnectReport (+4) " + Integer.toString(netId) + " " + info); } else { // We got disabled but RSSI is good, so disable hard config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED + WifiConfiguration.UNWANTED_BLACKLIST_HARD_BUMP); loge("handleBadNetworkDisconnectReport (+8) " + Integer.toString(netId) + " " + info); } } // Record last time Connectivity Service switched us away from WiFi and onto Cell lastUnwantedNetworkDisconnectTimestamp = System.currentTimeMillis(); } boolean handleBSSIDBlackList(int netId, String BSSID, boolean enable) { boolean found = false; if (BSSID == null) return found; // Look for the BSSID in our config store for (WifiConfiguration config : mConfiguredNetworks.values()) { if (getScanDetailCache(config) != null) { for (ScanDetail scanDetail : getScanDetailCache(config).values()) { if (scanDetail.getBSSIDString().equals(BSSID)) { if (enable) { scanDetail.getScanResult().setAutoJoinStatus(ScanResult.ENABLED); } else { // Black list the BSSID we were trying to join // so as the Roam state machine // doesn't pick it up over and over scanDetail.getScanResult().setAutoJoinStatus( ScanResult.AUTO_ROAM_DISABLED); found = true; } } } } } return found; } int getMaxDhcpRetries() { return Settings.Global.getInt(mContext.getContentResolver(), Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, DEFAULT_MAX_DHCP_RETRIES); } void clearBssidBlacklist() { if (!mWifiStateMachine.useHalBasedAutoJoinOffload()) { if(DBG) { Log.d(TAG, "No blacklist allowed without epno enabled"); } return; } mBssidBlacklist = new HashSet(); mWifiNative.clearBlacklist(); mWifiNative.setBssidBlacklist(null); } void blackListBssid(String BSSID) { if (!mWifiStateMachine.useHalBasedAutoJoinOffload()) { if(DBG) { Log.d(TAG, "No blacklist allowed without epno enabled"); } return; } if (BSSID == null) return; mBssidBlacklist.add(BSSID); // Blacklist at wpa_supplicant mWifiNative.addToBlacklist(BSSID); // Blacklist at firmware String list[] = new String[mBssidBlacklist.size()]; int count = 0; for (String bssid : mBssidBlacklist) { list[count++] = bssid; } mWifiNative.setBssidBlacklist(list); } void handleSSIDStateChange(int netId, boolean enabled, String message, String BSSID) { WifiConfiguration config = mConfiguredNetworks.get(netId); if (config != null) { if (enabled) { loge("Ignoring SSID re-enabled from supplicant: " + config.configKey() + " had autoJoinStatus=" + Integer.toString(config.autoJoinStatus) + " self added " + config.selfAdded + " ephemeral " + config.ephemeral); //We should not re-enable the BSSID based on Supplicant reanable. // Framework will re-enable it after its own blacklist timer expires } else { loge("SSID temp disabled for " + config.configKey() + " had autoJoinStatus=" + Integer.toString(config.autoJoinStatus) + " self added " + config.selfAdded + " ephemeral " + config.ephemeral); if (message != null) { loge(" message=" + message); } if (config.selfAdded && config.lastConnected == 0) { // This is a network we self added, and we never succeeded, // the user did not create this network and never entered its credentials, // so we want to be very aggressive in disabling it completely. removeConfigAndSendBroadcastIfNeeded(config.networkId); } else { if (message != null) { if (message.contains("no identity")) { config.setAutoJoinStatus( WifiConfiguration.AUTO_JOIN_DISABLED_NO_CREDENTIALS); if (DBG) { loge("no identity blacklisted " + config.configKey() + " to " + Integer.toString(config.autoJoinStatus)); } } else if (message.contains("WRONG_KEY") || message.contains("AUTH_FAILED")) { // This configuration has received an auth failure, so disable it // temporarily because we don't want auto-join to try it out. // this network may be re-enabled by the "usual" // enableAllNetwork function config.numAuthFailures++; if (config.numAuthFailures > maxAuthErrorsToBlacklist) { config.setAutoJoinStatus (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE); disableNetwork(netId, WifiConfiguration.DISABLED_AUTH_FAILURE); loge("Authentication failure, blacklist " + config.configKey() + " " + Integer.toString(config.networkId) + " num failures " + config.numAuthFailures); } } else if (message.contains("DHCP FAILURE")) { config.numIpConfigFailures++; config.lastConnectionFailure = System.currentTimeMillis(); int maxRetries = getMaxDhcpRetries(); // maxRetries == 0 means keep trying forever if (maxRetries > 0 && config.numIpConfigFailures > maxRetries) { /** * If we've exceeded the maximum number of retries for DHCP * to a given network, disable the network */ config.setAutoJoinStatus (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE); disableNetwork(netId, WifiConfiguration.DISABLED_DHCP_FAILURE); loge("DHCP failure, blacklist " + config.configKey() + " " + Integer.toString(config.networkId) + " num failures " + config.numIpConfigFailures); } // Also blacklist the BSSId if we find it ScanResult result = null; String bssidDbg = ""; if (getScanDetailCache(config) != null && BSSID != null) { result = getScanDetailCache(config).get(BSSID); } if (result != null) { result.numIpConfigFailures ++; bssidDbg = BSSID + " ipfail=" + result.numIpConfigFailures; if (result.numIpConfigFailures > 3) { // Tell supplicant to stop trying this BSSID mWifiNative.addToBlacklist(BSSID); result.setAutoJoinStatus(ScanResult.AUTO_JOIN_DISABLED); } } if (DBG) { loge("blacklisted " + config.configKey() + " to " + config.autoJoinStatus + " due to IP config failures, count=" + config.numIpConfigFailures + " disableReason=" + config.disableReason + " " + bssidDbg); } } else if (message.contains("CONN_FAILED")) { config.numConnectionFailures++; if (config.numConnectionFailures > maxConnectionErrorsToBlacklist) { config.setAutoJoinStatus (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE); disableNetwork(netId, WifiConfiguration.DISABLED_ASSOCIATION_REJECT); loge("Connection failure, blacklist " + config.configKey() + " " + config.networkId + " num failures " + config.numConnectionFailures); } } message.replace("\n", ""); message.replace("\r", ""); config.lastFailure = message; } } } } } boolean installKeys(WifiEnterpriseConfig config, String name) { boolean ret = true; String privKeyName = Credentials.USER_PRIVATE_KEY + name; String userCertName = Credentials.USER_CERTIFICATE + name; String caCertName = Credentials.CA_CERTIFICATE + name; if (config.getClientCertificate() != null) { byte[] privKeyData = config.getClientPrivateKey().getEncoded(); if (isHardwareBackedKey(config.getClientPrivateKey())) { // Hardware backed key store is secure enough to store keys un-encrypted, this // removes the need for user to punch a PIN to get access to these keys if (DBG) Log.d(TAG, "importing keys " + name + " in hardware backed store"); ret = mKeyStore.importKey(privKeyName, privKeyData, android.os.Process.WIFI_UID, KeyStore.FLAG_NONE); } else { // Software backed key store is NOT secure enough to store keys un-encrypted. // Save keys encrypted so they are protected with user's PIN. User will // have to unlock phone before being able to use these keys and connect to // networks. if (DBG) Log.d(TAG, "importing keys " + name + " in software backed store"); ret = mKeyStore.importKey(privKeyName, privKeyData, Process.WIFI_UID, KeyStore.FLAG_ENCRYPTED); } if (ret == false) { return ret; } ret = putCertInKeyStore(userCertName, config.getClientCertificate()); if (ret == false) { // Remove private key installed mKeyStore.delete(privKeyName, Process.WIFI_UID); return ret; } } if (config.getCaCertificate() != null) { ret = putCertInKeyStore(caCertName, config.getCaCertificate()); if (ret == false) { if (config.getClientCertificate() != null) { // Remove client key+cert mKeyStore.delete(privKeyName, Process.WIFI_UID); mKeyStore.delete(userCertName, Process.WIFI_UID); } return ret; } } // Set alias names if (config.getClientCertificate() != null) { config.setClientCertificateAlias(name); config.resetClientKeyEntry(); } if (config.getCaCertificate() != null) { config.setCaCertificateAlias(name); config.resetCaCertificate(); } return ret; } private boolean putCertInKeyStore(String name, Certificate cert) { try { byte[] certData = Credentials.convertToPem(cert); if (DBG) Log.d(TAG, "putting certificate " + name + " in keystore"); return mKeyStore.put(name, certData, Process.WIFI_UID, KeyStore.FLAG_NONE); } catch (IOException e1) { return false; } catch (CertificateException e2) { return false; } } void removeKeys(WifiEnterpriseConfig config) { String client = config.getClientCertificateAlias(); // a valid client certificate is configured if (!TextUtils.isEmpty(client)) { if (DBG) Log.d(TAG, "removing client private key and user cert"); mKeyStore.delete(Credentials.USER_PRIVATE_KEY + client, Process.WIFI_UID); mKeyStore.delete(Credentials.USER_CERTIFICATE + client, Process.WIFI_UID); } String ca = config.getCaCertificateAlias(); // a valid ca certificate is configured if (!TextUtils.isEmpty(ca)) { if (DBG) Log.d(TAG, "removing CA cert"); mKeyStore.delete(Credentials.CA_CERTIFICATE + ca, Process.WIFI_UID); } } /** Migrates the old style TLS config to the new config style. This should only be used * when restoring an old wpa_supplicant.conf or upgrading from a previous * platform version. * @return true if the config was updated * @hide */ boolean migrateOldEapTlsNative(WifiEnterpriseConfig config, int netId) { String oldPrivateKey = mWifiNative.getNetworkVariable(netId, OLD_PRIVATE_KEY_NAME); /* * If the old configuration value is not present, then there is nothing * to do. */ if (TextUtils.isEmpty(oldPrivateKey)) { return false; } else { // Also ignore it if it's empty quotes. oldPrivateKey = removeDoubleQuotes(oldPrivateKey); if (TextUtils.isEmpty(oldPrivateKey)) { return false; } } config.setFieldValue(WifiEnterpriseConfig.ENGINE_KEY, WifiEnterpriseConfig.ENGINE_ENABLE); config.setFieldValue(WifiEnterpriseConfig.ENGINE_ID_KEY, WifiEnterpriseConfig.ENGINE_ID_KEYSTORE); /* * The old key started with the keystore:// URI prefix, but we don't * need that anymore. Trim it off if it exists. */ final String keyName; if (oldPrivateKey.startsWith(WifiEnterpriseConfig.KEYSTORE_URI)) { keyName = new String( oldPrivateKey.substring(WifiEnterpriseConfig.KEYSTORE_URI.length())); } else { keyName = oldPrivateKey; } config.setFieldValue(WifiEnterpriseConfig.PRIVATE_KEY_ID_KEY, keyName); mWifiNative.setNetworkVariable(netId, WifiEnterpriseConfig.ENGINE_KEY, config.getFieldValue(WifiEnterpriseConfig.ENGINE_KEY, "")); mWifiNative.setNetworkVariable(netId, WifiEnterpriseConfig.ENGINE_ID_KEY, config.getFieldValue(WifiEnterpriseConfig.ENGINE_ID_KEY, "")); mWifiNative.setNetworkVariable(netId, WifiEnterpriseConfig.PRIVATE_KEY_ID_KEY, config.getFieldValue(WifiEnterpriseConfig.PRIVATE_KEY_ID_KEY, "")); // Remove old private_key string so we don't run this again. mWifiNative.setNetworkVariable(netId, OLD_PRIVATE_KEY_NAME, EMPTY_VALUE); return true; } /** Migrate certs from global pool to wifi UID if not already done */ void migrateCerts(WifiEnterpriseConfig config) { String client = config.getClientCertificateAlias(); // a valid client certificate is configured if (!TextUtils.isEmpty(client)) { if (!mKeyStore.contains(Credentials.USER_PRIVATE_KEY + client, Process.WIFI_UID)) { mKeyStore.duplicate(Credentials.USER_PRIVATE_KEY + client, -1, Credentials.USER_PRIVATE_KEY + client, Process.WIFI_UID); mKeyStore.duplicate(Credentials.USER_CERTIFICATE + client, -1, Credentials.USER_CERTIFICATE + client, Process.WIFI_UID); } } String ca = config.getCaCertificateAlias(); // a valid ca certificate is configured if (!TextUtils.isEmpty(ca)) { if (!mKeyStore.contains(Credentials.CA_CERTIFICATE + ca, Process.WIFI_UID)) { mKeyStore.duplicate(Credentials.CA_CERTIFICATE + ca, -1, Credentials.CA_CERTIFICATE + ca, Process.WIFI_UID); } } } private void readNetworkBitsetVariable(int netId, BitSet variable, String varName, String[] strings) { String value = mWifiNative.getNetworkVariable(netId, varName); if (!TextUtils.isEmpty(value)) { variable.clear(); String vals[] = value.split(" "); for (String val : vals) { int index = lookupString(val, strings); if (0 <= index) { variable.set(index); } } } } }