| /* |
| * 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.content.Context; |
| import android.content.Intent; |
| import android.net.IpConfiguration; |
| import android.net.IpConfiguration.IpAssignment; |
| import android.net.IpConfiguration.ProxySettings; |
| import android.net.LinkAddress; |
| import android.net.NetworkInfo.DetailedState; |
| import android.net.ProxyInfo; |
| import android.net.RouteInfo; |
| import android.net.StaticIpConfiguration; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiConfiguration.KeyMgmt; |
| import android.net.wifi.WifiConfiguration.Status; |
| import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID; |
| |
| import android.net.wifi.WifiEnterpriseConfig; |
| import android.net.wifi.WifiManager; |
| import android.net.wifi.WifiSsid; |
| import android.net.wifi.WpsInfo; |
| import android.net.wifi.WpsResult; |
| import android.net.wifi.ScanResult; |
| import android.net.wifi.WifiInfo; |
| |
| import android.os.Environment; |
| import android.os.FileObserver; |
| import android.os.Process; |
| 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.net.DelayedDiskWrite; |
| import com.android.server.net.IpConfigStore; |
| |
| import java.io.BufferedReader; |
| import java.io.BufferedInputStream; |
| 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.math.BigInteger; |
| import java.net.InetAddress; |
| import java.nio.charset.Charset; |
| import java.security.PrivateKey; |
| import java.security.cert.Certificate; |
| import java.security.cert.CertificateException; |
| import java.text.SimpleDateFormat; |
| import java.text.DateFormat; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import java.util.*; |
| |
| /** |
| * 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: |
| * <version> |
| * <netA_key1><netA_value1><netA_key2><netA_value2>...<EOS> |
| * <netB_key1><netB_value1><netB_key2><netB_value2>...<EOS> |
| * .. |
| * |
| * (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; |
| private static final String TAG = "WifiConfigStore"; |
| private static final boolean DBG = true; |
| private static boolean VDBG = false; |
| |
| private static final String SUPPLICANT_CONFIG_FILE = "/data/misc/wifi/wpa_supplicant.conf"; |
| |
| /* configured networks with network id as the key */ |
| private HashMap<Integer, WifiConfiguration> mConfiguredNetworks = |
| new HashMap<Integer, WifiConfiguration>(); |
| |
| /* 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. */ |
| private HashMap<Integer, Integer> mNetworkIds = |
| new HashMap<Integer, Integer>(); |
| |
| /* 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 SEPARATOR_KEY = "\n"; |
| 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 SCORER_OVERRIDE_KEY = "SCORER_OVERRIDE: "; |
| private static final String SCORER_OVERRIDE_AND_SWITCH_KEY = "SCORER_OVERRIDE_AND_SWITCH: "; |
| private static final String NUM_ASSOCIATION_KEY = "NUM_ASSOCIATION: "; |
| 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 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: "; |
| |
| public boolean enableAutoJoinWhileAssociated = true; |
| |
| public int maxTxPacketForNetworkSwitching = 40; |
| public int maxRxPacketForNetworkSwitching = 80; |
| |
| public int thresholdInitialAutoJoinAttemptMin5RSSI |
| = WifiConfiguration.INITIAL_AUTO_JOIN_ATTEMPT_MIN_5; |
| public int thresholdInitialAutoJoinAttemptMin24RSSI |
| = WifiConfiguration.INITIAL_AUTO_JOIN_ATTEMPT_MIN_24; |
| |
| public int thresholdBadRssi5 = WifiConfiguration.BAD_RSSI_5; |
| public int thresholdLowRssi5 = WifiConfiguration.LOW_RSSI_5; |
| public int thresholdGoodRssi5 = WifiConfiguration.GOOD_RSSI_5; |
| public int thresholdBadRssi24 = WifiConfiguration.BAD_RSSI_24; |
| public int thresholdLowRssi24 = WifiConfiguration.LOW_RSSI_24; |
| public int thresholdGoodRssi24 = WifiConfiguration.GOOD_RSSI_24; |
| |
| public int thresholdBandPreferenceRssi24 |
| = WifiConfiguration.G_BAND_PREFERENCE_RSSI_THRESHOLD; |
| public int thresholdBandPreferenceRssi5 |
| = WifiConfiguration.A_BAND_PREFERENCE_RSSI_THRESHOLD; |
| public int thresholdBandPreferenceLowRssi5 |
| = WifiConfiguration.A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW; |
| |
| public int thresholdUnblacklistThreshold5Hard |
| = WifiConfiguration.UNBLACKLIST_THRESHOLD_5_HARD; |
| public int thresholdUnblacklistThreshold5Soft |
| = WifiConfiguration.UNBLACKLIST_THRESHOLD_5_SOFT; |
| public int thresholdUnblacklistThreshold24Hard |
| = WifiConfiguration.UNBLACKLIST_THRESHOLD_24_HARD; |
| public int thresholdUnblacklistThreshold24Soft |
| = WifiConfiguration.UNBLACKLIST_THRESHOLD_24_SOFT; |
| |
| /** |
| * Regex pattern for extracting a connect choice. |
| * Matches a strings like the following: |
| * <configKey>=([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 }; |
| |
| |
| /** |
| * 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. |
| * <p> |
| * 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; |
| |
| WifiConfigStore(Context c, WifiNative wn) { |
| mContext = c; |
| mWifiNative = wn; |
| |
| if (VDBG) { |
| mLocalLog = mWifiNative.getLocalLog(); |
| mFileObserver = new WpaConfigFileObserver(); |
| mFileObserver.startWatching(); |
| } else { |
| mLocalLog = null; |
| mFileObserver = null; |
| } |
| } |
| |
| void enableVerboseLogging(int verbose) { |
| if (verbose > 0) { |
| VDBG = true; |
| } else { |
| VDBG = 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<WifiConfiguration> getConfiguredNetworks(Map<String, String> pskMap) { |
| List<WifiConfiguration> networks = new ArrayList<>(); |
| for(WifiConfiguration config : mConfiguredNetworks.values()) { |
| WifiConfiguration newConfig = new WifiConfiguration(config); |
| if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED) { |
| //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; |
| } |
| |
| /** |
| * Fetch the list of currently configured networks |
| * @return List of networks |
| */ |
| List<WifiConfiguration> getConfiguredNetworks() { |
| return getConfiguredNetworks(null); |
| } |
| |
| /** |
| * Fetch the list of currently configured networks, filled with real preSharedKeys |
| * @return List of networks |
| */ |
| List<WifiConfiguration> getPrivilegedConfiguredNetworks() { |
| Map<String, String> pskMap = getCredentialsBySsidMap(); |
| return getConfiguredNetworks(pskMap); |
| } |
| |
| /** |
| * Fetch the preSharedKeys for all networks. |
| * @return a map from Ssid to preSharedKey. |
| */ |
| private Map<String, String> getCredentialsBySsidMap() { |
| return readNetworkVariablesFromSupplicantFile("psk"); |
| } |
| |
| /** |
| * Fetch the list of currently configured networks that were recently seen |
| * |
| * @return List of networks |
| */ |
| List<WifiConfiguration> getRecentConfiguredNetworks(int milli, boolean copy) { |
| List<WifiConfiguration> networks = null; |
| |
| for (WifiConfiguration config : mConfiguredNetworks.values()) { |
| if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED) { |
| // 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 |
| config.setVisibility(milli); |
| |
| if (config.visibility == null) { |
| continue; |
| } |
| if (config.visibility.rssi5 == WifiConfiguration.INVALID_RSSI && |
| config.visibility.rssi24 == WifiConfiguration.INVALID_RSSI) { |
| continue; |
| } |
| if (networks == null) |
| networks = new ArrayList<WifiConfiguration>(); |
| 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 && config.scanResultCache != null) { |
| ScanResult result = config.scanResultCache.get(info.getBSSID()); |
| if (result != null) { |
| long previousSeen = result.seen; |
| int previousRssi = result.level; |
| |
| // Update the scan result |
| result.seen = System.currentTimeMillis(); |
| 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) { |
| if (mConfiguredNetworks == null) |
| return null; |
| return mConfiguredNetworks.get(netId); |
| } |
| |
| /** |
| * Get the Wificonfiguration for this key |
| * @return Wificonfiguration |
| */ |
| WifiConfiguration getWifiConfiguration(String key) { |
| if (key == null) |
| return null; |
| int hash = key.hashCode(); |
| if (mNetworkIds == null) |
| return null; |
| Integer n = mNetworkIds.get(hash); |
| if (n == null) |
| return null; |
| int netId = n.intValue(); |
| return getWifiConfiguration(netId); |
| } |
| |
| /** |
| * 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() { |
| boolean networkEnabledStateChanged = false; |
| for(WifiConfiguration config : mConfiguredNetworks.values()) { |
| if(config != null && config.status == Status.DISABLED |
| && (config.autoJoinStatus <= WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED)) { |
| if(mWifiNative.enableNetwork(config.networkId, false)) { |
| networkEnabledStateChanged = true; |
| config.status = Status.ENABLED; |
| } else { |
| loge("Enable network failed on " + config.networkId); |
| } |
| } |
| } |
| |
| if (networkEnabledStateChanged) { |
| mWifiNative.saveConfig(); |
| sendConfiguredNetworksChangedBroadcast(); |
| } |
| } |
| |
| |
| /** |
| * 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 netId network to select for connection |
| * @return false if the network id is invalid |
| */ |
| boolean selectNetwork(int netId) { |
| if (VDBG) localLog("selectNetwork", netId); |
| if (netId == 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 config : mConfiguredNetworks.values()) { |
| if (config.networkId != INVALID_NETWORK_ID) { |
| config.priority = 0; |
| addOrUpdateNetworkNative(config); |
| } |
| } |
| mLastPriority = 0; |
| } |
| |
| // Set to the highest priority and save the configuration. |
| WifiConfiguration config = new WifiConfiguration(); |
| config.networkId = netId; |
| config.priority = ++mLastPriority; |
| |
| addOrUpdateNetworkNative(config); |
| mWifiNative.saveConfig(); |
| |
| /* Enable the given network while disabling all other networks */ |
| enableNetworkWithoutBroadcast(netId, 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) { |
| 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)); |
| } |
| boolean newNetwork = (config.networkId == INVALID_NETWORK_ID); |
| NetworkUpdateResult result = addOrUpdateNetworkNative(config); |
| 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(config, result.isNewNetwork() ? |
| WifiManager.CHANGE_REASON_ADDED : WifiManager.CHANGE_REASON_CONFIG_CHANGE); |
| return result; |
| } |
| |
| 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; |
| } |
| } |
| } |
| |
| /** |
| * 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 (VDBG) localLog("forgetNetwork", 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)) { |
| mWifiNative.saveConfig(); |
| 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) { |
| if (VDBG) 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)); |
| NetworkUpdateResult result = addOrUpdateNetworkNative(config); |
| 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(); |
| } |
| |
| /** |
| * 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 (VDBG) localLog("removeNetwork", netId); |
| boolean ret = mWifiNative.removeNetwork(netId); |
| if (ret) { |
| removeConfigAndSendBroadcastIfNeeded(netId); |
| } |
| return ret; |
| } |
| |
| private boolean removeConfigAndSendBroadcastIfNeeded(int netId) { |
| boolean remove = true; |
| 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.didSelfAdd) { |
| if (config.peerWifiConfiguration != null) { |
| for (WifiConfiguration peer : mConfiguredNetworks.values()) { |
| if (config.peerWifiConfiguration.equals(peer.configKey())) { |
| /* the configuration that trigger the add is still there */ |
| remove = false; |
| } |
| } |
| } else { |
| loge("removeNetwork " + Integer.toString(netId) |
| + " key=" + config.configKey() |
| + " config.id=" + Integer.toString(config.networkId) |
| + " didSelfAdd and null peerWifiConfiguration" |
| + " -> dont remove"); |
| remove = false; |
| } |
| } |
| |
| if (remove) { |
| mConfiguredNetworks.remove(netId); |
| mNetworkIds.remove(configKey(config)); |
| } else { |
| /* we can't directly remove the configuration since we added it ourselves, because |
| * that could cause the system to re-add it right away. |
| * Instead black list it. It will be unblacklisted only thru a new add. |
| */ |
| config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_DELETED); |
| mWifiNative.disableNetwork(config.networkId); |
| } |
| |
| writeIpAndProxyConfigurations(); |
| sendConfiguredNetworksChangedBroadcast(config, WifiManager.CHANGE_REASON_REMOVED); |
| writeKnownNetworkHistory(); |
| } |
| return remove; |
| } |
| |
| /** |
| * 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) { |
| boolean ret = enableNetworkWithoutBroadcast(netId, disableOthers); |
| if (disableOthers) { |
| if (VDBG) localLog("enableNetwork(disableOthers=true) ", netId); |
| sendConfiguredNetworksChangedBroadcast(); |
| } else { |
| if (VDBG) localLog("enableNetwork(disableOthers=false) ", netId); |
| WifiConfiguration enabledNetwork = null; |
| synchronized(mConfiguredNetworks) { |
| 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 config : mConfiguredNetworks.values()) { |
| if(config != null && config.status != Status.DISABLED) { |
| if(mWifiNative.disableNetwork(config.networkId)) { |
| networkDisabled = true; |
| config.status = Status.DISABLED; |
| } else { |
| loge("Disable network failed on " + config.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) { |
| return disableNetwork(netId, WifiConfiguration.DISABLED_UNKNOWN_REASON); |
| } |
| |
| /** |
| * 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 */ |
| if (config != null && config.status != Status.DISABLED) { |
| config.status = Status.DISABLED; |
| config.disableReason = reason; |
| network = config; |
| } |
| 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 network 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 network 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; |
| } |
| |
| /** |
| * 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() { |
| String listStr = mWifiNative.listNetworks(); |
| mLastPriority = 0; |
| |
| mConfiguredNetworks.clear(); |
| mNetworkIds.clear(); |
| |
| if (listStr == null) |
| return; |
| |
| String[] lines = listStr.split("\n"); |
| |
| if (VDBG) { |
| loge("loadConfiguredNetworks: found " + Integer.toString(lines.length) |
| + " networks", true); |
| } |
| |
| // 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]); |
| } 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); |
| if (config.priority > mLastPriority) { |
| mLastPriority = config.priority; |
| } |
| |
| config.setIpAssignment(IpAssignment.DHCP); |
| config.setProxySettings(ProxySettings.NONE); |
| |
| if (mNetworkIds.containsKey(configKey(config))) { |
| // That SSID is already known, just ignore this duplicate entry |
| if (VDBG) localLog("discarded duplicate network ", config.networkId); |
| } else if(config.isValid()){ |
| mConfiguredNetworks.put(config.networkId, config); |
| mNetworkIds.put(configKey(config), config.networkId); |
| if (VDBG) localLog("loaded configured network", config.networkId); |
| } else { |
| if (DBG) log("Ignoring loaded configured for network " + config.networkId |
| + " because config are not valid"); |
| } |
| } |
| |
| readIpAndProxyConfigurations(); |
| readNetworkHistory(); |
| readAutoJoinConfig(); |
| |
| sendConfiguredNetworksChangedBroadcast(); |
| |
| if (VDBG) localLog("loadConfiguredNetworks loaded " + mNetworkIds.size() + " networks"); |
| |
| if (mNetworkIds.size() == 0) { |
| // no networks? Lets log if the wpa_supplicant.conf file contents |
| BufferedReader reader = null; |
| try { |
| reader = new BufferedReader(new FileReader(SUPPLICANT_CONFIG_FILE)); |
| if (VDBG) localLog("--- Begin wpa_supplicant.conf Contents ---"); |
| for (String line = reader.readLine(); line != null; line = reader.readLine()) { |
| if (VDBG) localLog(line); |
| } |
| if (VDBG) localLog("--- End wpa_supplicant.conf Contents ---"); |
| } catch (FileNotFoundException e) { |
| if (VDBG) localLog("Could not open " + SUPPLICANT_CONFIG_FILE + ", " + e); |
| } catch (IOException e) { |
| if (VDBG) localLog("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 |
| } |
| } |
| } |
| } |
| |
| private Map<String, String> readNetworkVariablesFromSupplicantFile(String key) { |
| Map<String, String> 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 (VDBG) loge(line); |
| |
| if (line.matches("[ \\t]*network=\\{")) { |
| found = true; |
| networkSsid = null; |
| value = null; |
| } else if (line.matches("[ \\t]*\\{")) { |
| found = false; |
| networkSsid = null; |
| value = null; |
| } |
| |
| if (found) { |
| int index; |
| if ((index = line.indexOf("ssid=")) >= 0) { |
| networkSsid = line.substring(index + 5); |
| } else if ((index = line.indexOf(key + "=")) >= 0) { |
| value = line.substring(index + 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) { |
| Map<String, String> data = readNetworkVariablesFromSupplicantFile(key); |
| if (VDBG) loge("readNetworkVariableFromSupplicantFile ssid=[" + ssid + "] key=" + key); |
| 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; |
| } |
| |
| public void writeKnownNetworkHistory() { |
| if (VDBG) { |
| loge(" writeKnownNetworkHistory() num networks:" + |
| Integer.toString(mConfiguredNetworks.size()), true); |
| } |
| |
| /* Make a copy */ |
| final List<WifiConfiguration> networks = new ArrayList<WifiConfiguration>(); |
| for (WifiConfiguration config : mConfiguredNetworks.values()) { |
| networks.add(new WifiConfiguration(config)); |
| } |
| |
| 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; |
| if (config.connectChoices != null) { |
| num = config.connectChoices.size(); |
| } |
| loge("saving network history: " + config.configKey() + " gw: " + |
| config.defaultGwMacAddress + " autojoin status: " + |
| config.autoJoinStatus + " ephemeral=" + config.ephemeral |
| + " choices:" + Integer.toString(num)); |
| } |
| if (config.ephemeral == true) |
| continue; |
| |
| if (config.isValid() == false) |
| continue; |
| |
| if (config.SSID == null) { |
| if (VDBG) { |
| loge("writeKnownNetworkHistory trying to write config with null SSID"); |
| } |
| continue; |
| } |
| |
| out.writeUTF(CONFIG_KEY + config.configKey() + SEPARATOR_KEY); |
| |
| out.writeUTF(SSID_KEY + config.SSID + SEPARATOR_KEY); |
| out.writeUTF(FQDN_KEY + config.FQDN + SEPARATOR_KEY); |
| |
| out.writeUTF(PRIORITY_KEY + Integer.toString(config.priority) + SEPARATOR_KEY); |
| out.writeUTF(STATUS_KEY + Integer.toString(config.autoJoinStatus) |
| + SEPARATOR_KEY); |
| out.writeUTF(SUPPLICANT_STATUS_KEY + Integer.toString(config.status) |
| + SEPARATOR_KEY); |
| out.writeUTF(SUPPLICANT_DISABLE_REASON_KEY |
| + Integer.toString(config.disableReason) |
| + SEPARATOR_KEY); |
| out.writeUTF(NETWORK_ID_KEY + Integer.toString(config.networkId) |
| + SEPARATOR_KEY); |
| out.writeUTF(SELF_ADDED_KEY + Boolean.toString(config.selfAdded) |
| + SEPARATOR_KEY); |
| out.writeUTF(DID_SELF_ADD_KEY + Boolean.toString(config.didSelfAdd) |
| + SEPARATOR_KEY); |
| if (config.peerWifiConfiguration != null) { |
| out.writeUTF(PEER_CONFIGURATION_KEY + config.peerWifiConfiguration |
| + SEPARATOR_KEY); |
| } |
| out.writeUTF(NUM_CONNECTION_FAILURES_KEY |
| + Integer.toString(config.numConnectionFailures) |
| + SEPARATOR_KEY); |
| out.writeUTF(SCORER_OVERRIDE_KEY + Integer.toString(config.numScorerOverride) |
| + SEPARATOR_KEY); |
| out.writeUTF(SCORER_OVERRIDE_AND_SWITCH_KEY |
| + Integer.toString(config.numScorerOverrideAndSwitchedNetwork) |
| + SEPARATOR_KEY); |
| out.writeUTF(NUM_ASSOCIATION_KEY |
| + Integer.toString(config.numAssociation) |
| + SEPARATOR_KEY); |
| out.writeUTF(BLACKLIST_MILLI_KEY + Long.toString(config.blackListTimestamp) |
| + SEPARATOR_KEY); |
| out.writeUTF(CREATOR_UID_KEY + Integer.toString(config.creatorUid) |
| + SEPARATOR_KEY); |
| out.writeUTF(CONNECT_UID_KEY + Integer.toString(config.lastConnectUid) |
| + SEPARATOR_KEY); |
| out.writeUTF(UPDATE_UID_KEY + Integer.toString(config.lastUpdateUid) |
| + SEPARATOR_KEY); |
| String allowedKeyManagementString = |
| makeString(config.allowedKeyManagement, |
| WifiConfiguration.KeyMgmt.strings); |
| out.writeUTF(AUTH_KEY + allowedKeyManagementString + SEPARATOR_KEY); |
| |
| if (config.connectChoices != null) { |
| for (String key : config.connectChoices.keySet()) { |
| Integer choice = config.connectChoices.get(key); |
| out.writeUTF(CHOICE_KEY + key + "=" |
| + choice.toString() + SEPARATOR_KEY); |
| } |
| } |
| if (config.linkedConfigurations != null) { |
| for (String key : config.linkedConfigurations.keySet()) { |
| out.writeUTF(LINK_KEY + key + SEPARATOR_KEY); |
| } |
| } |
| |
| String macAddress = config.defaultGwMacAddress; |
| if (macAddress != null) { |
| out.writeUTF(DEFAULT_GW_KEY + macAddress + SEPARATOR_KEY); |
| } |
| |
| if (config.scanResultCache != null) { |
| for (ScanResult result : config.scanResultCache.values()) { |
| out.writeUTF(BSSID_KEY + result.BSSID + SEPARATOR_KEY); |
| |
| out.writeUTF(FREQ_KEY + Integer.toString(result.frequency) |
| + SEPARATOR_KEY); |
| |
| out.writeUTF(RSSI_KEY + Integer.toString(result.level) |
| + SEPARATOR_KEY); |
| |
| out.writeUTF(BSSID_STATUS_KEY |
| + Integer.toString(result.autoJoinStatus) |
| + SEPARATOR_KEY); |
| |
| if (result.seen != 0) { |
| out.writeUTF(MILLI_KEY + Long.toString(result.seen) |
| + SEPARATOR_KEY); |
| } |
| out.writeUTF(BSSID_KEY_END + SEPARATOR_KEY); |
| } |
| } |
| if (config.lastFailure != null) { |
| out.writeUTF(FAILURE_KEY + config.lastFailure + SEPARATOR_KEY); |
| } |
| out.writeUTF(SEPARATOR_KEY); |
| } |
| } |
| |
| }); |
| } |
| |
| public void setLastSelectedConfiguration(int netId) { |
| if (DBG) { |
| 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(); |
| if (VDBG) { |
| loge("setLastSelectedConfiguration now: " + lastSelectedConfiguration); |
| } |
| } |
| } |
| } |
| |
| public String getLastSelectedConfiguration() { |
| return lastSelectedConfiguration; |
| } |
| |
| private void readNetworkHistory() { |
| if (VDBG) { |
| loge("will readNetworkHistory path:" + networkHistoryConfigFile, true); |
| } |
| DataInputStream in = null; |
| try { |
| in = new DataInputStream(new BufferedInputStream(new FileInputStream( |
| networkHistoryConfigFile))); |
| WifiConfiguration config = null; |
| while (true) { |
| int id = -1; |
| String key = in.readUTF(); |
| String bssid = null; |
| String ssid = null; |
| |
| int freq = 0; |
| int status = 0; |
| long seen = 0; |
| int rssi = WifiConfiguration.INVALID_RSSI; |
| String caps = null; |
| if (key.startsWith(CONFIG_KEY)) { |
| |
| if (config != null) { |
| config = null; |
| } |
| String configKey = key.replace(CONFIG_KEY, ""); |
| configKey = configKey.replace(SEPARATOR_KEY, ""); |
| // get the networkId for that config Key |
| Integer n = mNetworkIds.get(configKey.hashCode()); |
| // skip reading that configuration data |
| // since we don't have a corresponding network ID |
| if (n == null) { |
| loge("readNetworkHistory didnt find netid for hash=" |
| + Integer.toString(configKey.hashCode()) |
| + " key: " + configKey); |
| continue; |
| } |
| config = mConfiguredNetworks.get(n); |
| if (config == null) { |
| loge("readNetworkHistory didnt find config for netid=" |
| + n.toString() |
| + " key: " + configKey); |
| } |
| status = 0; |
| ssid = null; |
| bssid = null; |
| freq = 0; |
| seen = 0; |
| rssi = WifiConfiguration.INVALID_RSSI; |
| caps = null; |
| |
| } else if (config != null) { |
| if (key.startsWith(SSID_KEY)) { |
| ssid = key.replace(SSID_KEY, ""); |
| ssid = ssid.replace(SEPARATOR_KEY, ""); |
| 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; |
| } |
| } |
| |
| if (key.startsWith(FQDN_KEY)) { |
| String fqdn = key.replace(FQDN_KEY, ""); |
| fqdn = fqdn.replace(SEPARATOR_KEY, ""); |
| config.FQDN = fqdn; |
| } |
| |
| if (key.startsWith(DEFAULT_GW_KEY)) { |
| String gateway = key.replace(DEFAULT_GW_KEY, ""); |
| gateway = gateway.replace(SEPARATOR_KEY, ""); |
| config.defaultGwMacAddress = gateway; |
| } |
| |
| if (key.startsWith(STATUS_KEY)) { |
| String st = key.replace(STATUS_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| config.autoJoinStatus = Integer.parseInt(st); |
| } |
| |
| /* |
| if (key.startsWith(SUPPLICANT_STATUS_KEY)) { |
| String status = key.replace(SUPPLICANT_STATUS_KEY, ""); |
| status = status.replace(SEPARATOR_KEY, ""); |
| config.status = Integer.parseInt(status); |
| } |
| |
| if (key.startsWith(SUPPLICANT_DISABLE_REASON_KEY)) { |
| String reason = key.replace(SUPPLICANT_DISABLE_REASON_KEY, ""); |
| reason = reason.replace(SEPARATOR_KEY, ""); |
| config.disableReason = Integer.parseInt(reason); |
| }*/ |
| |
| if (key.startsWith(SELF_ADDED_KEY)) { |
| String selfAdded = key.replace(SELF_ADDED_KEY, ""); |
| selfAdded = selfAdded.replace(SEPARATOR_KEY, ""); |
| config.selfAdded = Boolean.parseBoolean(selfAdded); |
| } |
| |
| if (key.startsWith(DID_SELF_ADD_KEY)) { |
| String didSelfAdd = key.replace(DID_SELF_ADD_KEY, ""); |
| didSelfAdd = didSelfAdd.replace(SEPARATOR_KEY, ""); |
| config.didSelfAdd = Boolean.parseBoolean(didSelfAdd); |
| } |
| |
| if (key.startsWith(CREATOR_UID_KEY)) { |
| String uid = key.replace(CREATOR_UID_KEY, ""); |
| uid = uid.replace(SEPARATOR_KEY, ""); |
| config.creatorUid = Integer.parseInt(uid); |
| } |
| |
| if (key.startsWith(BLACKLIST_MILLI_KEY)) { |
| String milli = key.replace(BLACKLIST_MILLI_KEY, ""); |
| milli = milli.replace(SEPARATOR_KEY, ""); |
| config.blackListTimestamp = Long.parseLong(milli); |
| } |
| |
| if (key.startsWith(NUM_CONNECTION_FAILURES_KEY)) { |
| String num = key.replace(NUM_CONNECTION_FAILURES_KEY, ""); |
| num = num.replace(SEPARATOR_KEY, ""); |
| config.numConnectionFailures = Integer.parseInt(num); |
| } |
| |
| if (key.startsWith(SCORER_OVERRIDE_KEY)) { |
| String num = key.replace(SCORER_OVERRIDE_KEY, ""); |
| num = num.replace(SEPARATOR_KEY, ""); |
| config.numScorerOverride = Integer.parseInt(num); |
| } |
| |
| if (key.startsWith(SCORER_OVERRIDE_AND_SWITCH_KEY)) { |
| String num = key.replace(SCORER_OVERRIDE_AND_SWITCH_KEY, ""); |
| num = num.replace(SEPARATOR_KEY, ""); |
| config.numScorerOverrideAndSwitchedNetwork = Integer.parseInt(num); |
| } |
| |
| if (key.startsWith(NUM_ASSOCIATION_KEY)) { |
| String num = key.replace(NUM_ASSOCIATION_KEY, ""); |
| num = num.replace(SEPARATOR_KEY, ""); |
| config.numAssociation = Integer.parseInt(num); |
| } |
| |
| if (key.startsWith(CONNECT_UID_KEY)) { |
| String uid = key.replace(CONNECT_UID_KEY, ""); |
| uid = uid.replace(SEPARATOR_KEY, ""); |
| config.lastConnectUid = Integer.parseInt(uid); |
| } |
| |
| if (key.startsWith(UPDATE_UID_KEY)) { |
| String uid = key.replace(UPDATE_UID_KEY, ""); |
| uid = uid.replace(SEPARATOR_KEY, ""); |
| config.lastUpdateUid = Integer.parseInt(uid); |
| } |
| |
| if (key.startsWith(FAILURE_KEY)) { |
| config.lastFailure = key.replace(FAILURE_KEY, ""); |
| config.lastFailure = config.lastFailure.replace(SEPARATOR_KEY, ""); |
| } |
| |
| if (key.startsWith(PEER_CONFIGURATION_KEY)) { |
| config.peerWifiConfiguration = key.replace(PEER_CONFIGURATION_KEY, ""); |
| config.peerWifiConfiguration = |
| config.peerWifiConfiguration.replace(SEPARATOR_KEY, ""); |
| } |
| |
| if (key.startsWith(CHOICE_KEY)) { |
| String choiceStr = key.replace(CHOICE_KEY, ""); |
| choiceStr = choiceStr.replace(SEPARATOR_KEY, ""); |
| String configKey = ""; |
| int choice = 0; |
| Matcher match = mConnectChoice.matcher(choiceStr); |
| if (!match.find()) { |
| if (DBG) Log.d(TAG, "WifiConfigStore: connectChoice: " + |
| " Couldnt match pattern : " + choiceStr); |
| } 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<String, Integer>(); |
| } |
| config.connectChoices.put(configKey, choice); |
| } |
| } |
| } |
| |
| if (key.startsWith(LINK_KEY)) { |
| String configKey = key.replace(LINK_KEY, ""); |
| configKey = configKey.replace(SEPARATOR_KEY, ""); |
| if (config.linkedConfigurations == null) { |
| config.linkedConfigurations = new HashMap<String, Integer>(); |
| } |
| if (config.linkedConfigurations != null) { |
| config.linkedConfigurations.put(configKey, -1); |
| } |
| } |
| |
| if (key.startsWith(BSSID_KEY)) { |
| if (key.startsWith(BSSID_KEY)) { |
| bssid = key.replace(BSSID_KEY, ""); |
| bssid = bssid.replace(SEPARATOR_KEY, ""); |
| freq = 0; |
| seen = 0; |
| rssi = WifiConfiguration.INVALID_RSSI; |
| caps = ""; |
| status = 0; |
| } |
| |
| if (key.startsWith(RSSI_KEY)) { |
| String lvl = key.replace(RSSI_KEY, ""); |
| lvl = lvl.replace(SEPARATOR_KEY, ""); |
| rssi = Integer.parseInt(lvl); |
| } |
| |
| if (key.startsWith(BSSID_STATUS_KEY)) { |
| String st = key.replace(BSSID_STATUS_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| status = Integer.parseInt(st); |
| } |
| |
| if (key.startsWith(FREQ_KEY)) { |
| String channel = key.replace(FREQ_KEY, ""); |
| channel = channel.replace(SEPARATOR_KEY, ""); |
| freq = Integer.parseInt(channel); |
| } |
| |
| if (key.startsWith(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); |
| */ |
| } |
| |
| if (key.startsWith(BSSID_KEY_END)) { |
| |
| if ((bssid != null) && (ssid != null)) { |
| |
| if (config.scanResultCache == null) { |
| config.scanResultCache = new HashMap<String, ScanResult>(); |
| } |
| WifiSsid wssid = WifiSsid.createFromAsciiEncoded(ssid); |
| ScanResult result = new ScanResult(wssid, bssid, |
| caps, rssi, freq, (long) 0); |
| result.seen = seen; |
| config.scanResultCache.put(bssid, result); |
| result.autoJoinStatus = status; |
| } |
| } |
| } |
| } |
| } |
| } catch (EOFException ignore) { |
| if (in != null) { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| loge("readNetworkHistory: Error reading file" + e); |
| } |
| } |
| } catch (IOException e) { |
| loge("readNetworkHistory: No config file, revert to default" + e); |
| } |
| |
| if(in!=null) { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| loge("readNetworkHistory: Error closing file" + e); |
| } |
| } |
| } |
| |
| private void readAutoJoinConfig() { |
| BufferedReader reader = null; |
| try { |
| |
| reader = new BufferedReader(new FileReader(autoJoinConfigFile)); |
| |
| for (String key = reader.readLine(); key != null; key = reader.readLine()) { |
| if (key != null) { |
| Log.d(TAG, "readAutoJoinConfig line: " + key); |
| } |
| if (key.startsWith(ENABLE_AUTOJOIN_WHILE_ASSOCIATED_KEY)) { |
| String st = key.replace(ENABLE_AUTOJOIN_WHILE_ASSOCIATED_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| enableAutoJoinWhileAssociated = Integer.parseInt(st) != 0; |
| Log.d(TAG,"readAutoJoinConfig: enabled = " + enableAutoJoinWhileAssociated); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G_KEY)) { |
| String st = |
| key.replace(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdInitialAutoJoinAttemptMin5RSSI = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdInitialAutoJoinAttemptMin5RSSI = " |
| + Integer.toString(thresholdInitialAutoJoinAttemptMin5RSSI)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G_KEY)) { |
| String st = |
| key.replace(THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdInitialAutoJoinAttemptMin24RSSI = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdInitialAutoJoinAttemptMin24RSSI = " |
| + Integer.toString(thresholdInitialAutoJoinAttemptMin24RSSI)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_UNBLACKLIST_HARD_5G_KEY)) { |
| String st = key.replace(THRESHOLD_UNBLACKLIST_HARD_5G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdUnblacklistThreshold5Hard = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdUnblacklistThreshold5Hard = " |
| + Integer.toString(thresholdUnblacklistThreshold5Hard)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_UNBLACKLIST_SOFT_5G_KEY)) { |
| String st = key.replace(THRESHOLD_UNBLACKLIST_SOFT_5G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdUnblacklistThreshold5Soft = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdUnblacklistThreshold5Soft = " |
| + Integer.toString(thresholdUnblacklistThreshold5Soft)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_UNBLACKLIST_HARD_24G_KEY)) { |
| String st = key.replace(THRESHOLD_UNBLACKLIST_HARD_24G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdUnblacklistThreshold24Hard = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdUnblacklistThreshold24Hard = " |
| + Integer.toString(thresholdUnblacklistThreshold24Hard)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_UNBLACKLIST_SOFT_24G_KEY)) { |
| String st = key.replace(THRESHOLD_UNBLACKLIST_SOFT_24G_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdUnblacklistThreshold24Soft = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdUnblacklistThreshold24Soft = " |
| + Integer.toString(thresholdUnblacklistThreshold24Soft)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_GOOD_RSSI_5_KEY)) { |
| String st = key.replace(THRESHOLD_GOOD_RSSI_5_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdGoodRssi5 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdGoodRssi5 = " |
| + Integer.toString(thresholdGoodRssi5)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_LOW_RSSI_5_KEY)) { |
| String st = key.replace(THRESHOLD_LOW_RSSI_5_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdLowRssi5 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdLowRssi5 = " |
| + Integer.toString(thresholdLowRssi5)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_BAD_RSSI_5_KEY)) { |
| String st = key.replace(THRESHOLD_BAD_RSSI_5_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdBadRssi5 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdBadRssi5 = " |
| + Integer.toString(thresholdBadRssi5)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_GOOD_RSSI_24_KEY)) { |
| String st = key.replace(THRESHOLD_GOOD_RSSI_24_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdGoodRssi24 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdGoodRssi24 = " |
| + Integer.toString(thresholdGoodRssi24)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_LOW_RSSI_24_KEY)) { |
| String st = key.replace(THRESHOLD_LOW_RSSI_24_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdLowRssi24 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdLowRssi24 = " |
| + Integer.toString(thresholdLowRssi24)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_BAD_RSSI_24_KEY)) { |
| String st = key.replace(THRESHOLD_BAD_RSSI_24_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdBadRssi24 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdBadRssi24 = " |
| + Integer.toString(thresholdBadRssi24)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING_KEY)) { |
| String st = key.replace(THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| maxTxPacketForNetworkSwitching = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: maxTxPacketForNetworkSwitching = " |
| + Integer.toString(maxTxPacketForNetworkSwitching)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING_KEY)) { |
| String st = key.replace(THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| maxRxPacketForNetworkSwitching = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: maxRxPacketForNetworkSwitching = " |
| + Integer.toString(maxRxPacketForNetworkSwitching)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| |
| if (key.startsWith(A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW_KEY)) { |
| String st = key.replace(A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdBandPreferenceLowRssi5 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdBandPreferenceLowRssi5 = " |
| + Integer.toString(thresholdBandPreferenceLowRssi5)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(A_BAND_PREFERENCE_RSSI_THRESHOLD_KEY)) { |
| String st = key.replace(A_BAND_PREFERENCE_RSSI_THRESHOLD_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdBandPreferenceRssi5 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdBandPreferenceRssi5 = " |
| + Integer.toString(thresholdBandPreferenceRssi5)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| if (key.startsWith(G_BAND_PREFERENCE_RSSI_THRESHOLD_KEY)) { |
| String st = key.replace(G_BAND_PREFERENCE_RSSI_THRESHOLD_KEY, ""); |
| st = st.replace(SEPARATOR_KEY, ""); |
| try { |
| thresholdBandPreferenceRssi24 = Integer.parseInt(st); |
| Log.d(TAG,"readAutoJoinConfig: thresholdBandPreferenceRssi24 = " |
| + Integer.toString(thresholdBandPreferenceRssi24)); |
| } catch (NumberFormatException e) { |
| Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key); |
| } |
| } |
| } |
| } catch (EOFException ignore) { |
| if (reader != null) { |
| try { |
| reader.close(); |
| reader = null; |
| } catch (Exception e) { |
| loge("readAutoJoinStatus: Error closing file" + e); |
| } |
| } |
| } catch (IOException e) { |
| loge("readAutoJoinStatus: Error parsing configuration" + e); |
| } |
| |
| if (reader!=null) { |
| try { |
| reader.close(); |
| } catch (Exception e) { |
| loge("readAutoJoinStatus: Error closing file" + e); |
| } |
| } |
| } |
| |
| |
| private void writeIpAndProxyConfigurations() { |
| final SparseArray<IpConfiguration> networks = new SparseArray<IpConfiguration>(); |
| 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<IpConfiguration> networks = super.readIpAndProxyConfigurations(ipConfigFile); |
| |
| if (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.get(mNetworkIds.get(id)); |
| |
| |
| if (config == null || config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED) { |
| 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 |
| */ |
| |
| private String encodeSSID(String str){ |
| String tmp = removeDoubleQuotes(str); |
| return String.format("%x", new BigInteger(1, tmp.getBytes(Charset.forName("UTF-8")))); |
| } |
| |
| private NetworkUpdateResult addOrUpdateNetworkNative(WifiConfiguration config) { |
| /* |
| * 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()); |
| |
| 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) { |
| Integer savedNetId = mNetworkIds.get(configKey(config)); |
| //paranoia: check if either we have a network Id or a WifiConfiguration |
| //matching the one we are trying to add. |
| if (savedNetId == null) { |
| for (WifiConfiguration test : mConfiguredNetworks.values()) { |
| if (test.configKey().equals(config.configKey())) { |
| savedNetId = test.networkId; |
| loge("addOrUpdateNetworkNative " + config.configKey() |
| + " was found, but no network Id"); |
| break; |
| } |
| } |
| } |
| if (savedNetId != null) { |
| netId = savedNetId; |
| } else { |
| 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.BSSID != null) { |
| loge("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<String, String> 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 (!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.lastConnectUid = config.lastConnectUid; |
| currentConfig.lastUpdateUid = config.lastUpdateUid; |
| currentConfig.creatorUid = config.creatorUid; |
| currentConfig.peerWifiConfiguration = config.peerWifiConfiguration; |
| } |
| if (DBG) { |
| loge("created new config netId=" + Integer.toString(netId) |
| + " uid=" + Integer.toString(currentConfig.creatorUid)); |
| } |
| } |
| |
| 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) loge("will read network variables netId=" + Integer.toString(netId)); |
| |
| readNetworkVariables(currentConfig); |
| |
| mConfiguredNetworks.put(netId, currentConfig); |
| mNetworkIds.put(configKey(currentConfig), netId); |
| |
| NetworkUpdateResult result = writeIpAndProxyConfigurationsOnChange(currentConfig, config); |
| result.setIsNewNetwork(newNetwork); |
| result.setNetworkId(netId); |
| return result; |
| } |
| |
| |
| public void linkConfiguration(WifiConfiguration config) { |
| if (config.scanResultCache != null && config.scanResultCache.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) { |
| 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; |
| } |
| |
| if (link.scanResultCache != null && link.scanResultCache.size() > 6) { |
| // Ignore configurations with large number of BSSIDs |
| continue; |
| } |
| |
| if (config.defaultGwMacAddress != null && link.defaultGwMacAddress != null) { |
| // If both default GW are known, compare based on RSSI only if the GW is 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 ((config.scanResultCache != null) && (config.scanResultCache.size() <= 6) |
| && (link.scanResultCache != null) && (link.scanResultCache.size() <= 6)) { |
| for (String abssid : config.scanResultCache.keySet()) { |
| for (String bbssid : link.scanResultCache.keySet()) { |
| if (VDBG) { |
| 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) { |
| if (VDBG) { |
| loge("linkConfiguration: will link " + link.SSID + " and " + config.SSID); |
| } |
| if (link.linkedConfigurations == null) { |
| link.linkedConfigurations = new HashMap<String, Integer>(); |
| } |
| if (config.linkedConfigurations == null) { |
| config.linkedConfigurations = new HashMap<String, Integer>(); |
| } |
| link.linkedConfigurations.put(config.configKey(), Integer.valueOf(1)); |
| config.linkedConfigurations.put(link.configKey(), Integer.valueOf(1)); |
| } else { |
| //todo if they are linked, break the link |
| } |
| } |
| } |
| |
| /* |
| * We try to link a scan result with a WifiConfiguration for which SSID and |
| * key management dont match, |
| * for instance, we try identify the 5GHz SSID of a DBDC AP, |
| * even though we know only of the 2.4GHz |
| * |
| * Obviously, this function is not optimal since it is used to compare every scan |
| * result with every Saved WifiConfiguration, with a string.equals operation. |
| * As a speed up, might be better to implement the mConfiguredNetworks store as a |
| * <String, WifiConfiguration> object instead of a <Integer, WifiConfiguration> object |
| * so as to speed this up. Also to prevent the tiny probability of hash collision. |
| * |
| */ |
| public WifiConfiguration associateWithConfiguration(ScanResult result) { |
| String configKey = WifiConfiguration.configKey(result); |
| if (configKey == null) { |
| if (DBG) loge("associateWithConfiguration(): no config key " ); |
| return null; |
| } |
| |
| //need to compare with quoted string |
| String SSID = "\"" + result.SSID + "\""; |
| |
| WifiConfiguration config = null; |
| for (WifiConfiguration link : mConfiguredNetworks.values()) { |
| boolean doLink = false; |
| |
| if (link.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || link.didSelfAdd) { |
| //make sure we dont associate the scan result to a deleted config |
| continue; |
| } |
| |
| if (configKey.equals(link.configKey())) { |
| if (VDBG) loge("associateWithConfiguration(): found it!!! " + configKey ); |
| return link; //found it exactly |
| } |
| |
| if ((link.scanResultCache != null) && (link.scanResultCache.size() <= 4)) { |
| String bssid = ""; |
| for (String key : link.scanResultCache.keySet()) { |
| bssid = key; |
| } |
| |
| if (result.BSSID.regionMatches(true, 0, bssid, 0, 16) |
| && SSID.regionMatches(false, 0, link.SSID, 0, 3)) { |
| // if first 16 ascii characters of BSSID matches, and first 3 |
| // characters of SSID match, we assume this is a home setup |
| // and thus we will try to transfer the password from the known |
| // BSSID/SSID to the recently found BSSID/SSID |
| |
| //if (VDBG) |
| // loge("associateWithConfiguration OK " ); |
| doLink = true; |
| } |
| } |
| |
| if (doLink) { |
| //try to make a non verified WifiConfiguration, but only if the original |
| //configuration was not self already added |
| if (VDBG) { |
| loge("associateWithConfiguration: will create " + |
| result.SSID + " and associate it with: " + link.SSID); |
| } |
| config = wifiConfigurationFromScanResult(result); |
| if (config != null) { |
| config.selfAdded = true; |
| config.didSelfAdd = true; |
| config.peerWifiConfiguration = link.configKey(); |
| if (config.allowedKeyManagement.equals(link.allowedKeyManagement) && |
| config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { |
| //transfer the credentials from the configuration we are linking from |
| String psk = readNetworkVariableFromSupplicantFile(link.SSID, "psk"); |
| if (psk != null) { |
| config.preSharedKey = psk; |
| if (VDBG) { |
| if (config.preSharedKey != null) |
| loge(" transfer PSK : " + config.preSharedKey); |
| } |
| |
| //link configurations |
| if (link.linkedConfigurations == null) { |
| link.linkedConfigurations = new HashMap<String, Integer>(); |
| } |
| if (config.linkedConfigurations == null) { |
| config.linkedConfigurations = new HashMap<String, Integer>(); |
| } |
| link.linkedConfigurations.put(config.configKey(), Integer.valueOf(1)); |
| config.linkedConfigurations.put(link.configKey(), Integer.valueOf(1)); |
| } else { |
| config = null; |
| } |
| } else { |
| config = null; |
| } |
| } |
| } else { |
| //todo if they are linked, break the link |
| } |
| } |
| return config; |
| } |
| |
| public HashSet<Integer> makeChannelList(WifiConfiguration config, int age, boolean restrict) { |
| if (config == null) |
| return null; |
| long now_ms = System.currentTimeMillis(); |
| |
| HashSet<Integer> channels = new HashSet<Integer>(); |
| |
| //get channels for this configuration, if there are at least 2 BSSIDs |
| if (config.scanResultCache == null && config.linkedConfigurations == null) { |
| return null; |
| } |
| |
| if (VDBG) { |
| StringBuilder dbg = new StringBuilder(); |
| dbg.append("makeChannelList age=" + Integer.toString(age) |
| + " for " + config.configKey()); |
| if (config.scanResultCache != null) { |
| dbg.append(" bssids=" + config.scanResultCache.size()); |
| } |
| if (config.linkedConfigurations != null) { |
| dbg.append(" linked=" + config.linkedConfigurations.size()); |
| } |
| loge(dbg.toString()); |
| } |
| |
| if (config.scanResultCache != null && config.scanResultCache.size() > 0) { |
| for (ScanResult result : config.scanResultCache.values()) { |
| 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); |
| } |
| } |
| } |
| |
| //get channels for linked configurations |
| if (config.linkedConfigurations != null) { |
| for (String key : config.linkedConfigurations.keySet()) { |
| WifiConfiguration linked = getWifiConfiguration(key); |
| if (linked == null) |
| continue; |
| if (linked.scanResultCache == null) { |
| continue; |
| } |
| for (ScanResult result : linked.scanResultCache.values()) { |
| if (VDBG) { |
| loge("has link: " + result.BSSID |
| + " freq=" + Integer.toString(result.frequency) |
| + " age=" + Long.toString(now_ms - result.seen)); |
| } |
| if (((now_ms - result.seen) < age)/*||(!restrict || result.is24GHz())*/) { |
| channels.add(result.frequency); |
| } |
| } |
| } |
| } |
| return channels; |
| } |
| |
| public WifiConfiguration updateSavedNetworkHistory(ScanResult scanResult) { |
| WifiConfiguration found = null; |
| if (scanResult == null) |
| return found; |
| |
| //first step, look for this scan Result by SSID + Key Management |
| String key = WifiConfiguration.configKey(scanResult); |
| int hash = key.hashCode(); |
| |
| Integer netId = mNetworkIds.get(hash); |
| if (netId == null) return null; |
| WifiConfiguration config = mConfiguredNetworks.get(netId); |
| if (config != null) { |
| if (config.scanResultCache == null) { |
| config.scanResultCache = new HashMap<String, ScanResult>(); |
| } |
| if (config.scanResultCache == null) { |
| return null; |
| } |
| //add the scan result to this WifiConfiguration |
| config.scanResultCache.put(scanResult.BSSID, scanResult); |
| mConfiguredNetworks.put(netId, config); |
| linkConfiguration(config); |
| found = config; |
| } |
| |
| if (VDBG) { |
| config = mConfiguredNetworks.get(netId); |
| if (config != null) { |
| if (config.scanResultCache != null) { |
| String status = ""; |
| if (scanResult.autoJoinStatus > 0) { |
| status = " status=" + Integer.toString(scanResult.autoJoinStatus); |
| } |
| loge(" got known scan result " + |
| scanResult.BSSID + " key : " + key + " num: " + |
| Integer.toString(config.scanResultCache.size()) |
| + " rssi=" + Integer.toString(scanResult.level) |
| + " freq=" + Integer.toString(scanResult.frequency) |
| + status); |
| } else { |
| loge(" got known scan result and no cache" + |
| scanResult.BSSID + " key : " + key); |
| } |
| } |
| } |
| return found; |
| |
| } |
| |
| /* 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; |
| } |
| |
| value = mWifiNative.getNetworkVariable(config.networkId, |
| WifiConfiguration.Protocol.varName); |
| if (!TextUtils.isEmpty(value)) { |
| String vals[] = value.split(" "); |
| for (String val : vals) { |
| int index = |
| lookupString(val, WifiConfiguration.Protocol.strings); |
| if (0 <= index) { |
| config.allowedProtocols.set(index); |
| } |
| } |
| } |
| |
| value = mWifiNative.getNetworkVariable(config.networkId, |
| WifiConfiguration.KeyMgmt.varName); |
| if (!TextUtils.isEmpty(value)) { |
| String vals[] = value.split(" "); |
| for (String val : vals) { |
| int index = |
| lookupString(val, WifiConfiguration.KeyMgmt.strings); |
| if (0 <= index) { |
| config.allowedKeyManagement.set(index); |
| } |
| } |
| } |
| |
| value = mWifiNative.getNetworkVariable(config.networkId, |
| WifiConfiguration.AuthAlgorithm.varName); |
| if (!TextUtils.isEmpty(value)) { |
| String vals[] = value.split(" "); |
| for (String val : vals) { |
| int index = |
| lookupString(val, WifiConfiguration.AuthAlgorithm.strings); |
| if (0 <= index) { |
| config.allowedAuthAlgorithms.set(index); |
| } |
| } |
| } |
| |
| value = mWifiNative.getNetworkVariable(config.networkId, |
| WifiConfiguration.PairwiseCipher.varName); |
| if (!TextUtils.isEmpty(value)) { |
| String vals[] = value.split(" "); |
| for (String val : vals) { |
| int index = |
| lookupString(val, WifiConfiguration.PairwiseCipher.strings); |
| if (0 <= index) { |
| config.allowedPairwiseCiphers.set(index); |
| } |
| } |
| } |
| |
| value = mWifiNative.getNetworkVariable(config.networkId, |
| WifiConfiguration.GroupCipher.varName); |
| if (!TextUtils.isEmpty(value)) { |
| String vals[] = value.split(" "); |
| for (String val : vals) { |
| int index = |
| lookupString(val, WifiConfiguration.GroupCipher.strings); |
| if (0 <= index) { |
| config.allowedGroupCiphers.set(index); |
| } |
| } |
| } |
| |
| if (config.enterpriseConfig == null) { |
| config.enterpriseConfig = new WifiEnterpriseConfig(); |
| } |
| HashMap<String, String> 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(ScanResult result) { |
| 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); |
| } |
| |
| config.scanResultCache = new HashMap<String, ScanResult>(); |
| if (config.scanResultCache == null) |
| return null; |
| config.scanResultCache.put(result.BSSID, result); |
| |
| 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("WifiConfigStore"); |
| pw.println("mLastPriority " + mLastPriority); |
| pw.println("Configured networks"); |
| for (WifiConfiguration conf : getConfiguredNetworks()) { |
| pw.println(conf); |
| } |
| pw.println(); |
| |
| if (mLocalLog != null) { |
| pw.println("WifiConfigStore - Log Begin ----"); |
| mLocalLog.dump(fd, pw, args); |
| pw.println("WifiConfigStore - Log End ----"); |
| } |
| } |
| |
| 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); |
| } |
| } |
| |
| 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, int netId) { |
| if (mLocalLog == null) { |
| return; |
| } |
| |
| WifiConfiguration config; |
| synchronized(mConfiguredNetworks) { |
| config = mConfiguredNetworks.get(netId); |
| } |
| |
| if (config != null) { |
| mLocalLog.log(s + " " + config.getPrintableSsid()); |
| } 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; |
| } |
| |
| /** 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); |
| } |
| } |
| } |
| |
| 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 (config.scanResultCache != null) { |
| for (ScanResult result: config.scanResultCache.values()) { |
| if (result.BSSID.equals(BSSID)) { |
| if (enable) { |
| result.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 |
| result.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 handleSSIDStateChange(int netId, boolean enabled, String message) { |
| WifiConfiguration config = mConfiguredNetworks.get(netId); |
| if (config != null) { |
| if (enabled) { |
| loge("SSID re-enabled for " + config.configKey() + |
| " had autoJoinStatus=" + Integer.toString(config.autoJoinStatus) |
| + " self added " + config.selfAdded + " ephemeral " + config.ephemeral); |
| //TODO: http://b/16381983 Fix Wifi Network Blacklisting |
| //TODO: really I don't know if re-enabling is right but we |
| //TODO: should err on the side of trying to connect |
| //TODO: even if the attempt will fail |
| if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) { |
| config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); |
| } |
| } 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. |
| disableNetwork(config.networkId, WifiConfiguration.DISABLED_AUTH_FAILURE); |
| config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE); |
| config.disableReason = WifiConfiguration.DISABLED_AUTH_FAILURE; |
| } else { |
| if (message != null) { |
| 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 |
| //TODO: resolve interpretation of WRONG_KEY and AUTH_FAILURE: |
| //TODO: if we could count on the wrong_ley or auth_failure |
| //TODO: message to be correct |
| //TODO: then we could just mark the configuration as |
| //TODO: DISABLED_ON_AUTH_FAILURE |
| //TODO: and the configuration will stay there until |
| //TODO: user enter new credentials |
| //TODO: It is not the case however, so instead of disabling, let's |
| //TODO: start blacklisting hard |
| //TODO: http://b/16381983 Fix Wifi Network Blacklisting |
| if (config.autoJoinStatus <= |
| WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) { |
| // 4 auth failure will reach 128 and disable permanently |
| // autoJoinStatus: 0 -> 4 -> 20 -> 84 -> 128 |
| config.setAutoJoinStatus(4 + config.autoJoinStatus * 4); |
| if (config.autoJoinStatus > |
| WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) |
| config.setAutoJoinStatus |
| (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE); |
| } |
| if (DBG) { |
| loge("blacklisted " + config.configKey() + " to " |
| + Integer.toString(config.autoJoinStatus)); |
| } |
| } else if (message.contains("DHCP FAILURE")) { |
| config.numConnectionFailures++; |
| config.lastConnectionFailure = System.currentTimeMillis(); |
| int maxRetries = getMaxDhcpRetries(); |
| // maxRetries == 0 means keep trying forever |
| if (maxRetries > 0 && config.numConnectionFailures > 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); |
| } |
| if (DBG) { |
| loge("blacklisted " + config.configKey() + " to " |
| + config.autoJoinStatus |
| + " due to DHCP failure, count=" |
| + 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.delKey(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.delKey(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.delKey(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); |
| } |
| } |
| } |
| |
| } |