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WifiConfigStore.javaAPI DocAndroid 5.1 API190756Thu Mar 12 22:22:52 GMT 2015com.android.server.wifi

WifiConfigStore

public class WifiConfigStore extends com.android.server.net.IpConfigStore
This class provides the API to manage configured wifi networks. The API is not thread safe is being used only from WifiStateMachine. It deals with the following - Add/update/remove a WifiConfiguration The configuration contains two types of information. = IP and proxy configuration that is handled by WifiConfigStore and is saved to disk on any change. The format of configuration file is as follows: ... ... .. (key, value) pairs for a given network are grouped together and can be in any order. A EOS at the end of a set of (key, value) pairs indicates that the next set of (key, value) pairs are for a new network. A network is identified by a unique ID_KEY. If there is no ID_KEY in the (key, value) pairs, the data is discarded. An invalid version on read would result in discarding the contents of the file. On the next write, the latest version is written to file. Any failures during read or write to the configuration file are ignored without reporting to the user since the likelihood of these errors are low and the impact on connectivity is low. = SSID & security details that is pushed to the supplicant. supplicant saves these details to the disk on calling saveConfigCommand(). We have two kinds of APIs exposed: > public API calls that provide fine grained control - enableNetwork, disableNetwork, addOrUpdateNetwork(), removeNetwork(). For these calls, the config is not persisted to the disk. (TODO: deprecate these calls in WifiManager) > The new API calls - selectNetwork(), saveNetwork() & forgetNetwork(). These calls persist the supplicant config to disk. - Maintain a list of configured networks for quick access

Fields Summary
private android.content.Context
mContext
private static final String
TAG
private static final boolean
DBG
private static boolean
VDBG
private static boolean
VVDBG
private static final String
SUPPLICANT_CONFIG_FILE
private HashMap
mConfiguredNetworks
private HashMap
mNetworkIds
private Set
mDeletedSSIDs
Framework keeps a list of (the CRC32 hashes of) all SSIDs that where deleted by user, so as, framework knows not to re-add those SSIDs automatically to the Saved networks
public Set
mDeletedEphemeralSSIDs
Framework keeps a list of ephemeral SSIDs that where deleted by user, so as, framework knows not to autojoin again those SSIDs based on scorer input. The list is never cleared up. The SSIDs are encoded in a String as per definition of WifiConfiguration.SSID field.
private int
mLastPriority
private static final String
ipConfigFile
private static final String
networkHistoryConfigFile
private static final String
autoJoinConfigFile
private static final String
SSID_KEY
private static final String
CONFIG_KEY
private static final String
CHOICE_KEY
private static final String
LINK_KEY
private static final String
BSSID_KEY
private static final String
BSSID_KEY_END
private static final String
RSSI_KEY
private static final String
FREQ_KEY
private static final String
DATE_KEY
private static final String
MILLI_KEY
private static final String
BLACKLIST_MILLI_KEY
private static final String
NETWORK_ID_KEY
private static final String
PRIORITY_KEY
private static final String
DEFAULT_GW_KEY
private static final String
AUTH_KEY
private static final String
SEPARATOR_KEY
private static final String
STATUS_KEY
private static final String
BSSID_STATUS_KEY
private static final String
SELF_ADDED_KEY
private static final String
FAILURE_KEY
private static final String
DID_SELF_ADD_KEY
private static final String
PEER_CONFIGURATION_KEY
private static final String
CREATOR_UID_KEY
private static final String
CONNECT_UID_KEY
private static final String
UPDATE_UID_KEY
private static final String
SUPPLICANT_STATUS_KEY
private static final String
SUPPLICANT_DISABLE_REASON_KEY
private static final String
FQDN_KEY
private static final String
NUM_CONNECTION_FAILURES_KEY
private static final String
NUM_IP_CONFIG_FAILURES_KEY
private static final String
NUM_AUTH_FAILURES_KEY
private static final String
SCORER_OVERRIDE_KEY
private static final String
SCORER_OVERRIDE_AND_SWITCH_KEY
private static final String
VALIDATED_INTERNET_ACCESS_KEY
private static final String
NO_INTERNET_ACCESS_REPORTS_KEY
private static final String
EPHEMERAL_KEY
private static final String
NUM_ASSOCIATION_KEY
private static final String
DELETED_CRC32_KEY
private static final String
DELETED_EPHEMERAL_KEY
private static final String
JOIN_ATTEMPT_BOOST_KEY
private static final String
THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G_KEY
private static final String
THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G_KEY
private static final String
THRESHOLD_UNBLACKLIST_HARD_5G_KEY
private static final String
THRESHOLD_UNBLACKLIST_SOFT_5G_KEY
private static final String
THRESHOLD_UNBLACKLIST_HARD_24G_KEY
private static final String
THRESHOLD_UNBLACKLIST_SOFT_24G_KEY
private static final String
THRESHOLD_GOOD_RSSI_5_KEY
private static final String
THRESHOLD_LOW_RSSI_5_KEY
private static final String
THRESHOLD_BAD_RSSI_5_KEY
private static final String
THRESHOLD_GOOD_RSSI_24_KEY
private static final String
THRESHOLD_LOW_RSSI_24_KEY
private static final String
THRESHOLD_BAD_RSSI_24_KEY
private static final String
THRESHOLD_MAX_TX_PACKETS_FOR_NETWORK_SWITCHING_KEY
private static final String
THRESHOLD_MAX_RX_PACKETS_FOR_NETWORK_SWITCHING_KEY
private static final String
THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS_KEY
private static final String
THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS_KEY
private static final String
THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS_KEY
private static final String
THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS_KEY
private static final String
MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY
private static final String
MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY
private static final String
A_BAND_PREFERENCE_RSSI_THRESHOLD_LOW_KEY
private static final String
A_BAND_PREFERENCE_RSSI_THRESHOLD_KEY
private static final String
G_BAND_PREFERENCE_RSSI_THRESHOLD_KEY
private static final String
ENABLE_AUTOJOIN_WHILE_ASSOCIATED_KEY
private static final String
ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY
private static final String
ASSOCIATED_FULL_SCAN_BACKOFF_KEY
private static final String
ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED_KEY
private static final String
ONLY_LINK_SAME_CREDENTIAL_CONFIGURATIONS_KEY
private static final String
ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED_KEY
private static final String
ENABLE_AUTO_JOIN_SCAN_WHILE_ASSOCIATED_KEY
private static final String
ENABLE_AUTO_JOIN_WHILE_ASSOCIATED_KEY
private static final String
ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED_KEY
private static final String
ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY
private static final String
WIFI_VERBOSE_LOGS_KEY
private static final String
DELETED_CONFIG_PSK
public boolean
enableAutoJoinScanWhenAssociated
public boolean
enableAutoJoinWhenAssociated
public boolean
enableChipWakeUpWhenAssociated
public boolean
enableRssiPollWhenAssociated
public int
maxTxPacketForNetworkSwitching
public int
maxRxPacketForNetworkSwitching
public int
maxTxPacketForFullScans
public int
maxRxPacketForFullScans
public int
maxTxPacketForPartialScans
public int
maxRxPacketForPartialScans
public boolean
enableFullBandScanWhenAssociated
public int
thresholdInitialAutoJoinAttemptMin5RSSI
public int
thresholdInitialAutoJoinAttemptMin24RSSI
public int
thresholdBadRssi5
public int
thresholdLowRssi5
public int
thresholdGoodRssi5
public int
thresholdBadRssi24
public int
thresholdLowRssi24
public int
thresholdGoodRssi24
public int
associatedFullScanBackoff
public int
associatedFullScanMaxIntervalMilli
public int
associatedPartialScanPeriodMilli
public int
networkSwitchingBlackListPeriodMilli
public int
bandPreferenceBoostFactor5
public int
bandPreferencePenaltyFactor5
public int
bandPreferencePenaltyThreshold5
public int
bandPreferenceBoostThreshold5
public int
badLinkSpeed24
public int
badLinkSpeed5
public int
goodLinkSpeed24
public int
goodLinkSpeed5
public int
maxAuthErrorsToBlacklist
public int
maxConnectionErrorsToBlacklist
public int
wifiConfigBlacklistMinTimeMilli
public int
wifiConfigLastSelectionHysteresis
public int
associatedHysteresisHigh
public int
associatedHysteresisLow
public int
thresholdUnblacklistThreshold5Hard
public int
thresholdUnblacklistThreshold5Soft
public int
thresholdUnblacklistThreshold24Hard
public int
thresholdUnblacklistThreshold24Soft
public int
enableVerboseLogging
boolean
showNetworks
public int
alwaysEnableScansWhileAssociated
public int
maxNumActiveChannelsForPartialScans
public int
maxNumPassiveChannelsForPartialScans
public boolean
roamOnAny
public boolean
onlyLinkSameCredentialConfigurations
public boolean
enableLinkDebouncing
public boolean
enable5GHzPreference
public boolean
enableWifiCellularHandoverUserTriggeredAdjustment
public int
currentNetworkBoost
public int
scanResultRssiLevelPatchUp
public static final int
maxNumScanCacheEntries
private static Pattern
mConnectChoice
Regex pattern for extracting a connect choice. Matches a strings like the following: =([0:9]+)
public static final String
OLD_PRIVATE_KEY_NAME
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.
static final String
EMPTY_VALUE
This represents an empty value of an enterprise field. NULL is used at wpa_supplicant to indicate an empty value
private static final String[]
ENTERPRISE_CONFIG_SUPPLICANT_KEYS
public long
lastUnwantedNetworkDisconnectTimestamp
If Connectivity Service has triggered an unwanted network disconnect
private static final int
DEFAULT_MAX_DHCP_RETRIES
The maximum number of times we will retry a connection to an access point for which we have failed in acquiring an IP address from DHCP. A value of N means that we will make N+1 connection attempts in all.

See {@link Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}. This is the default value if a Settings value is not present.

private final android.util.LocalLog
mLocalLog
private final WpaConfigFileObserver
mFileObserver
private WifiNative
mWifiNative
private final android.security.KeyStore
mKeyStore
private String
lastSelectedConfiguration
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.
Constructors Summary
WifiConfigStore(android.content.Context c, WifiNative wn)


        
        mContext = c;
        mWifiNative = wn;

        if (showNetworks) {
            mLocalLog = mWifiNative.getLocalLog();
            mFileObserver = new WpaConfigFileObserver();
            mFileObserver.startWatching();
        } else {
            mLocalLog = null;
            mFileObserver = null;
        }

        associatedPartialScanPeriodMilli = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_associated_scan_interval);
        loge("associatedPartialScanPeriodMilli set to " + associatedPartialScanPeriodMilli);

        onlyLinkSameCredentialConfigurations = mContext.getResources().getBoolean(
                R.bool.config_wifi_only_link_same_credential_configurations);
        maxNumActiveChannelsForPartialScans = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_associated_partial_scan_max_num_active_channels);
        maxNumPassiveChannelsForPartialScans = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_associated_partial_scan_max_num_passive_channels);
        associatedFullScanMaxIntervalMilli = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_associated_full_scan_max_interval);
        associatedFullScanBackoff = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_associated_full_scan_backoff);
        enableLinkDebouncing = mContext.getResources().getBoolean(
                R.bool.config_wifi_enable_disconnection_debounce);

        enable5GHzPreference = mContext.getResources().getBoolean(
                R.bool.config_wifi_enable_5GHz_preference);

        bandPreferenceBoostFactor5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_5GHz_preference_boost_factor);
        bandPreferencePenaltyFactor5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_5GHz_preference_penalty_factor);

        bandPreferencePenaltyThreshold5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_5GHz_preference_penalty_threshold);
        bandPreferenceBoostThreshold5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_5GHz_preference_boost_threshold);

        associatedHysteresisHigh = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_current_association_hysteresis_high);
        associatedHysteresisLow = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_current_association_hysteresis_low);

        thresholdBadRssi5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz);
        thresholdLowRssi5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz);
        thresholdGoodRssi5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz);
        thresholdBadRssi24 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz);
        thresholdLowRssi24 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz);
        thresholdGoodRssi24 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz);

        enableWifiCellularHandoverUserTriggeredAdjustment = mContext.getResources().getBoolean(
                R.bool.config_wifi_framework_cellular_handover_enable_user_triggered_adjustment);

        badLinkSpeed24 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_bad_link_speed_24);
        badLinkSpeed5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_bad_link_speed_5);
        goodLinkSpeed24 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_good_link_speed_24);
        goodLinkSpeed5 = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_wifi_score_good_link_speed_5);

        maxAuthErrorsToBlacklist = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_max_auth_errors_to_blacklist);
        maxConnectionErrorsToBlacklist = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_max_connection_errors_to_blacklist);
        wifiConfigBlacklistMinTimeMilli = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_network_black_list_min_time_milli);


        enableAutoJoinScanWhenAssociated = mContext.getResources().getBoolean(
                R.bool.config_wifi_framework_enable_associated_autojoin_scan);

        enableAutoJoinWhenAssociated = mContext.getResources().getBoolean(
                R.bool.config_wifi_framework_enable_associated_network_selection);

        currentNetworkBoost = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_current_network_boost);

        scanResultRssiLevelPatchUp = mContext.getResources().getInteger(
                R.integer.config_wifi_framework_scan_result_rssi_level_patchup_value);

        networkSwitchingBlackListPeriodMilli = mContext.getResources().getInteger(
                R.integer.config_wifi_network_switching_blacklist_time);
Methods Summary
intaddOrUpdateNetwork(android.net.wifi.WifiConfiguration config, int uid)
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

        if (showNetworks) localLog("addOrUpdateNetwork id=", config.networkId);
        //adding unconditional message to chase b/15111865
        Log.e(TAG, " key=" + config.configKey() + " netId=" + Integer.toString(config.networkId)
                + " uid=" + Integer.toString(config.creatorUid)
                + "/" + Integer.toString(config.lastUpdateUid));
        NetworkUpdateResult result = addOrUpdateNetworkNative(config, uid);
        if (result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) {
            WifiConfiguration conf = mConfiguredNetworks.get(result.getNetworkId());
            if (conf != null) {
                sendConfiguredNetworksChangedBroadcast(conf,
                    result.isNewNetwork ? WifiManager.CHANGE_REASON_ADDED :
                            WifiManager.CHANGE_REASON_CONFIG_CHANGE);
            }
        }
        return result.getNetworkId();
private NetworkUpdateResultaddOrUpdateNetworkNative(android.net.wifi.WifiConfiguration config, int uid)

        /*
         * If the supplied networkId is INVALID_NETWORK_ID, we create a new empty
         * network configuration. Otherwise, the networkId should
         * refer to an existing configuration.
         */

        if (VDBG) localLog("addOrUpdateNetworkNative " + config.getPrintableSsid());

        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));
            // 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.ephemeral = config.ephemeral;
                currentConfig.autoJoinUseAggressiveJoinAttemptThreshold
                        = config.autoJoinUseAggressiveJoinAttemptThreshold;
                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 (uid >= 0) {
            if (newNetwork) {
                currentConfig.creatorUid = uid;
            } else {
                currentConfig.lastUpdateUid = uid;
            }
        }

        if (newNetwork) {
            currentConfig.dirty = true;
        }

        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("remove deleted status netId=" + Integer.toString(netId)
                        + " " + currentConfig.configKey());
            }
        }

        if (currentConfig.status == WifiConfiguration.Status.ENABLED) {
            // Make sure autojoin remain in sync with user modifying the configuration
            currentConfig.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED);
        }

        if (currentConfig.configKey().equals(getLastSelectedConfiguration()) &&
                currentConfig.ephemeral) {
            // Make the config non-ephemeral since the user just explicitly clicked it.
            currentConfig.ephemeral = false;
            if (DBG) loge("remove ephemeral status netId=" + Integer.toString(netId)
                    + " " + currentConfig.configKey());
        }

        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);

        writeKnownNetworkHistory(false);

        return result;
public android.net.wifi.WifiConfigurationassociateWithConfiguration(android.net.wifi.ScanResult result)

        boolean doNotAdd = false;
        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 + "\"";

        if (VVDBG) {
            loge("associateWithConfiguration(): try " + configKey);
        }

        Checksum csum = new CRC32();
        csum.update(SSID.getBytes(), 0, SSID.getBytes().length);
        if (mDeletedSSIDs.contains(csum.getValue())) {
            doNotAdd = true;
        }

        WifiConfiguration config = null;
        for (WifiConfiguration link : mConfiguredNetworks.values()) {
            boolean doLink = false;

            if (link.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || link.selfAdded ||
                    link.ephemeral) {
                if (VVDBG) loge("associateWithConfiguration(): skip selfadd " + link.configKey() );
                // Make sure we dont associate the scan result to a deleted config
                continue;
            }

            if (!link.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) {
                if (VVDBG) loge("associateWithConfiguration(): skip non-PSK " + link.configKey() );
                // Make sure we dont associate the scan result to a non-PSK config
                continue;
            }

            if (configKey.equals(link.configKey())) {
                if (VVDBG) loge("associateWithConfiguration(): found it!!! " + configKey );
                return link; // Found it exactly
            }

            if (!doNotAdd && (link.scanResultCache != null) && (link.scanResultCache.size() <= 6)) {
                for (String bssid : link.scanResultCache.keySet()) {
                    if (result.BSSID.regionMatches(true, 0, bssid, 0, 16)
                            && SSID.regionMatches(false, 0, link.SSID, 0, 4)) {
                        // 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;
                        break;
                    }
                }
            }

            if (doLink) {
                // Try to make a non verified WifiConfiguration, but only if the original
                // configuration was not self already added
                if (VDBG) {
                    loge("associateWithConfiguration: try to create " +
                            result.SSID + " and associate it with: " + link.SSID
                            + " key " + link.configKey());
                }
                config = wifiConfigurationFromScanResult(result);
                if (config != null) {
                    config.selfAdded = true;
                    config.didSelfAdd = true;
                    config.dirty = true;
                    config.peerWifiConfiguration = link.configKey();
                    if (config.allowedKeyManagement.equals(link.allowedKeyManagement) &&
                            config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) {
                        if (VDBG && config != null) {
                            loge("associateWithConfiguration: got a config from beacon"
                                    + config.SSID + " key " + config.configKey());
                        }
                        // 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));

                            // Carry over the Ip configuration
                            if (link.getIpConfiguration() != null) {
                                config.setIpConfiguration(link.getIpConfiguration());
                            }
                        } else {
                            config = null;
                        }
                    } else {
                        config = null;
                    }
                    if (config != null) break;
                }
                if (VDBG && config != null) {
                    loge("associateWithConfiguration: success, created: " + config.SSID
                            + " key " + config.configKey());
                }
            }
        }
        return config;
private static intconfigKey(android.net.wifi.WifiConfiguration config)

        String key = config.configKey();
        return key.hashCode();
voiddisableAllNetworks()

        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();
        }
android.net.wifi.WifiConfigurationdisableEphemeralNetwork(java.lang.String SSID)
Disable an ephemeral SSID for the purpose of auto-joining thru scored. This SSID will never be scored anymore. The only way to "un-disable it" is if the user create a network for that SSID and then forget it.

param
SSID caller must ensure that the SSID passed thru this API match the WifiConfiguration.SSID rules, and thus be surrounded by quotes.
return
the {@link WifiConfiguration} corresponding to this SSID, if any, so that we can disconnect if this is the current network.

        if (SSID == null) {
            return null;
        }

        WifiConfiguration foundConfig = null;

        mDeletedEphemeralSSIDs.add(SSID);
        loge("Forget ephemeral SSID " + SSID + " num=" + mDeletedEphemeralSSIDs.size());

        for (WifiConfiguration config : mConfiguredNetworks.values()) {
            if (SSID.equals(config.SSID) && config.ephemeral) {
                loge("Found ephemeral config in disableEphemeralNetwork: " + config.networkId);
                foundConfig = config;
            }
        }

        // Force a write, because the mDeletedEphemeralSSIDs list has changed even though the
        // configurations may not have.
        writeKnownNetworkHistory(true);

        return foundConfig;
booleandisableNetwork(int netId)
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

        return disableNetwork(netId, WifiConfiguration.DISABLED_UNKNOWN_REASON);
booleandisableNetwork(int netId, int 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

        if (VDBG) localLog("disableNetwork", netId);
        boolean ret = mWifiNative.disableNetwork(netId);
        WifiConfiguration network = null;
        WifiConfiguration config = mConfiguredNetworks.get(netId);

        if (VDBG) {
            if (config != null) {
                loge("disableNetwork netId=" + Integer.toString(netId)
                        + " SSID=" + config.SSID
                        + " disabled=" + (config.status == Status.DISABLED)
                        + " reason=" + Integer.toString(config.disableReason));
            }
        }
        /* Only change the reason if the network was not previously disabled
        /* and the reason is not DISABLED_BY_WIFI_MANAGER, that is, if a 3rd party
         * set its configuration as disabled, then leave it disabled */
        if (config != null) {
            if (config.status != Status.DISABLED
                && config.disableReason != WifiConfiguration.DISABLED_BY_WIFI_MANAGER) {
                config.status = Status.DISABLED;
                config.disableReason = reason;
                network = config;
            }
            if (reason == WifiConfiguration.DISABLED_BY_WIFI_MANAGER) {
                // Make sure autojoin wont reenable this configuration without further user
                // intervention
                config.status = Status.DISABLED;
                config.autoJoinStatus = WifiConfiguration.AUTO_JOIN_DISABLED_USER_ACTION;
            }
        }
        if (network != null) {
            sendConfiguredNetworksChangedBroadcast(network,
                    WifiManager.CHANGE_REASON_CONFIG_CHANGE);
        }
        return ret;
voiddriverRoamedFrom(android.net.wifi.WifiInfo info)
Firmware is roaming away from this BSSID, and this BSSID was on 5GHz, and it's RSSI was good, this means we have a situation where we would want to remain on this BSSID but firmware is not successful at it. This situation is observed on a small number of Access Points, b/17960587 In that situation, blacklist this BSSID really hard so as framework will not attempt to roam to it for the next 8 hours. We do not to keep flipping between 2.4 and 5GHz band.. TODO: review the blacklisting strategy so as to make it softer and adaptive

param
info

        if (info != null
            && info.getBSSID() != null
            && ScanResult.is5GHz(info.getFrequency())
            && info.getRssi() > (bandPreferenceBoostThreshold5 + 3)) {
            WifiConfiguration config = getWifiConfiguration(info.getNetworkId());
            if (config != null) {
                if (config.scanResultCache != null) {
                    ScanResult result = config.scanResultCache.get(info.getBSSID());
                    if (result != null) {
                        result.setAutoJoinStatus(ScanResult.AUTO_ROAM_DISABLED + 1);
                    }
                }
            }
        }
voiddump(java.io.FileDescriptor fd, java.io.PrintWriter pw, java.lang.String[] args)

        pw.println("Dump of 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 ----");
        }
voidenableAllNetworks()
Enable all networks and save config. This will be a no-op if the list of configured networks indicates all networks as being enabled

        long now = System.currentTimeMillis();
        boolean networkEnabledStateChanged = false;

        for(WifiConfiguration config : mConfiguredNetworks.values()) {

            if(config != null && config.status == Status.DISABLED && !config.ephemeral
                    && (config.autoJoinStatus
                    <= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE)) {

                // Wait for 5 minutes before reenabling config that have known, repeated connection
                // or DHCP failures
                if (config.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE
                        || config.disableReason == WifiConfiguration.DISABLED_ASSOCIATION_REJECT
                        || config.disableReason == WifiConfiguration.DISABLED_AUTH_FAILURE) {
                    if (config.blackListTimestamp != 0
                           && now > config.blackListTimestamp
                           && (now - config.blackListTimestamp) < wifiConfigBlacklistMinTimeMilli) {
                        continue;
                    }
                }

                if(mWifiNative.enableNetwork(config.networkId, false)) {
                    networkEnabledStateChanged = true;
                    config.status = Status.ENABLED;

                    // Reset the blacklist condition
                    config.numConnectionFailures = 0;
                    config.numIpConfigFailures = 0;
                    config.numAuthFailures = 0;

                    // Reenable the wifi configuration
                    config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED);
                } else {
                    loge("Enable network failed on " + config.networkId);
                }
            }
        }

        if (networkEnabledStateChanged) {
            mWifiNative.saveConfig();
            sendConfiguredNetworksChangedBroadcast();
        }
booleanenableNetwork(int netId, boolean disableOthers)
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 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;
booleanenableNetworkWithoutBroadcast(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;
voidenableVerboseLogging(int verbose)

        enableVerboseLogging = verbose;
        if (verbose > 0) {
            VDBG = true;
            showNetworks = true;
        } else {
            VDBG = false;
        }
        if (verbose > 1) {
            VVDBG = true;
        } else {
            VVDBG = false;
        }
private java.lang.StringencodeSSID(java.lang.String str)

        String tmp = removeDoubleQuotes(str);
        return String.format("%x", new BigInteger(1, tmp.getBytes(Charset.forName("UTF-8"))));
private booleanenterpriseConfigKeyShouldBeQuoted(java.lang.String key)
Returns true if a particular config key needs to be quoted when passed to the supplicant.

        switch (key) {
            case WifiEnterpriseConfig.EAP_KEY:
            case WifiEnterpriseConfig.ENGINE_KEY:
                return false;
            default:
                return true;
        }
booleanforgetNetwork(int netId)
Forget the specified network and save config

param
netId network to forget
return
{@code true} if it succeeds, {@code false} otherwise

        if (showNetworks) 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;
        }
public java.lang.StringgetConfigFile()

        return ipConfigFile;
private java.util.ListgetConfiguredNetworks(java.util.Map pskMap)

        List<WifiConfiguration> networks = new ArrayList<>();
        for(WifiConfiguration config : mConfiguredNetworks.values()) {
            WifiConfiguration newConfig = new WifiConfiguration(config);
            // When updating this condition, update WifiStateMachine's CONNECT_NETWORK handler to
            // correctly handle updating existing configs that are filtered out here.
            if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || config.ephemeral) {
                // Do not enumerate and return this configuration to any one,
                // for instance WiFi Picker.
                // instead treat it as unknown. the configuration can still be retrieved
                // directly by the key or networkId
                continue;
            }

            if (pskMap != null && config.allowedKeyManagement != null
                    && config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK)
                    && pskMap.containsKey(config.SSID)) {
                newConfig.preSharedKey = pskMap.get(config.SSID);
            }
            networks.add(newConfig);
        }
        return networks;
java.util.ListgetConfiguredNetworks()
Fetch the list of currently configured networks

return
List of networks

        return getConfiguredNetworks(null);
intgetConfiguredNetworksSize()

        return mConfiguredNetworks.size();
private java.util.MapgetCredentialsBySsidMap()
Fetch the preSharedKeys for all networks.

return
a map from Ssid to preSharedKey.

        return readNetworkVariablesFromSupplicantFile("psk");
public java.lang.StringgetLastSelectedConfiguration()

        return lastSelectedConfiguration;
intgetMaxDhcpRetries()

        return Settings.Global.getInt(mContext.getContentResolver(),
                Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT,
                DEFAULT_MAX_DHCP_RETRIES);
java.util.ListgetPrivilegedConfiguredNetworks()
Fetch the list of currently configured networks, filled with real preSharedKeys

return
List of networks

        Map<String, String> pskMap = getCredentialsBySsidMap();
        return getConfiguredNetworks(pskMap);
android.net.ProxyInfogetProxyProperties(int netId)
Fetch the proxy properties for a given network id

param
network id
return
ProxyInfo for the network id

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            return config.getHttpProxy();
        }
        return null;
java.util.ListgetRecentConfiguredNetworks(int milli, boolean copy)
Fetch the list of currently configured networks that were recently seen

return
List of networks

        List<WifiConfiguration> networks = new ArrayList<WifiConfiguration>();

        for (WifiConfiguration config : mConfiguredNetworks.values()) {
            if (config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED || config.ephemeral) {
                // Do not enumerate and return this configuration to any one,
                // instead treat it as unknown. the configuration can still be retrieved
                // directly by the key or networkId
                continue;
            }

            // Calculate the RSSI for scan results that are more recent than milli
            config.setVisibility(milli);
            if (config.visibility == null) {
                continue;
            }
            if (config.visibility.rssi5 == WifiConfiguration.INVALID_RSSI &&
                    config.visibility.rssi24 == WifiConfiguration.INVALID_RSSI) {
                continue;
            }
            if (copy) {
                networks.add(new WifiConfiguration(config));
            } else {
                networks.add(config);
            }
        }
        return networks;
android.net.StaticIpConfigurationgetStaticIpConfiguration(int netId)
Fetch the static IP configuration for a given network id

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            return config.getStaticIpConfiguration();
        }
        return null;
android.net.wifi.WifiConfigurationgetWifiConfiguration(int netId)
get the Wificonfiguration for this netId

return
Wificonfiguration

        if (mConfiguredNetworks == null)
            return null;
        return mConfiguredNetworks.get(netId);
android.net.wifi.WifiConfigurationgetWifiConfiguration(java.lang.String key)
Get the Wificonfiguration for this key

return
Wificonfiguration

        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);
intgetconfiguredNetworkSize()

        if (mConfiguredNetworks == null)
            return 0;
        return mConfiguredNetworks.size();
booleanhandleBSSIDBlackList(int netId, java.lang.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;
voidhandleBadNetworkDisconnectReport(int netId, android.net.wifi.WifiInfo info)
called when CS ask WiFistateMachine to disconnect the current network because the score is bad.

        /* TODO verify the bad network is current */
        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            if ((info.getRssi() < WifiConfiguration.UNWANTED_BLACKLIST_SOFT_RSSI_24
                    && info.is24GHz()) || (info.getRssi() <
                            WifiConfiguration.UNWANTED_BLACKLIST_SOFT_RSSI_5 && info.is5GHz())) {
                // We got disconnected and RSSI was bad, so disable light
                config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED
                        + WifiConfiguration.UNWANTED_BLACKLIST_SOFT_BUMP);
                loge("handleBadNetworkDisconnectReport (+4) "
                        + Integer.toString(netId) + " " + info);
            } else {
                // We got disabled but RSSI is good, so disable hard
                config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED
                        + WifiConfiguration.UNWANTED_BLACKLIST_HARD_BUMP);
                loge("handleBadNetworkDisconnectReport (+8) "
                        + Integer.toString(netId) + " " + info);
            }
        }
        // Record last time Connectivity Service switched us away from WiFi and onto Cell
        lastUnwantedNetworkDisconnectTimestamp = System.currentTimeMillis();
voidhandleSSIDStateChange(int netId, boolean enabled, java.lang.String message, java.lang.String BSSID)

        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.
                    removeConfigAndSendBroadcastIfNeeded(config.networkId);
                } else {
                    if (message != null) {
                        if (message.contains("no identity")) {
                            config.setAutoJoinStatus(
                                    WifiConfiguration.AUTO_JOIN_DISABLED_NO_CREDENTIALS);
                            if (DBG) {
                                loge("no identity blacklisted " + config.configKey() + " to "
                                        + Integer.toString(config.autoJoinStatus));
                            }
                        } else if (message.contains("WRONG_KEY")
                                || message.contains("AUTH_FAILED")) {
                            // This configuration has received an auth failure, so disable it
                            // temporarily because we don't want auto-join to try it out.
                            // this network may be re-enabled by the "usual"
                            // enableAllNetwork function
                            config.numAuthFailures++;
                            if (config.numAuthFailures > maxAuthErrorsToBlacklist) {
                                config.setAutoJoinStatus
                                        (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE);
                                disableNetwork(netId,
                                        WifiConfiguration.DISABLED_AUTH_FAILURE);
                                loge("Authentication failure, blacklist " + config.configKey() + " "
                                            + Integer.toString(config.networkId)
                                            + " num failures " + config.numAuthFailures);
                            }
                        } else if (message.contains("DHCP FAILURE")) {
                            config.numIpConfigFailures++;
                            config.lastConnectionFailure = System.currentTimeMillis();
                            int maxRetries = getMaxDhcpRetries();
                            // maxRetries == 0 means keep trying forever
                            if (maxRetries > 0 && config.numIpConfigFailures > maxRetries) {
                                /**
                                 * If we've exceeded the maximum number of retries for DHCP
                                 * to a given network, disable the network
                                 */
                                config.setAutoJoinStatus
                                        (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE);
                                disableNetwork(netId, WifiConfiguration.DISABLED_DHCP_FAILURE);
                                loge("DHCP failure, blacklist " + config.configKey() + " "
                                        + Integer.toString(config.networkId)
                                        + " num failures " + config.numIpConfigFailures);
                            }

                            // Also blacklist the BSSId if we find it
                            ScanResult result = null;
                            String bssidDbg = "";
                            if (config.scanResultCache != null && BSSID != null) {
                                result = config.scanResultCache.get(BSSID);
                            }
                            if (result != null) {
                                result.numIpConfigFailures ++;
                                bssidDbg = BSSID + " ipfail=" + result.numIpConfigFailures;
                                if (result.numIpConfigFailures > 3) {
                                    // Tell supplicant to stop trying this BSSID
                                    mWifiNative.addToBlacklist(BSSID);
                                    result.setAutoJoinStatus(ScanResult.AUTO_JOIN_DISABLED);
                                }
                            }

                            if (DBG) {
                                loge("blacklisted " + config.configKey() + " to "
                                        + config.autoJoinStatus
                                        + " due to IP config failures, count="
                                        + config.numIpConfigFailures
                                        + " disableReason=" + config.disableReason
                                        + " " + bssidDbg);
                            }
                        } else if (message.contains("CONN_FAILED")) {
                            config.numConnectionFailures++;
                            if (config.numConnectionFailures > maxConnectionErrorsToBlacklist) {
                                config.setAutoJoinStatus
                                        (WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE);
                                disableNetwork(netId,
                                        WifiConfiguration.DISABLED_ASSOCIATION_REJECT);
                                loge("Connection failure, blacklist " + config.configKey() + " "
                                        + config.networkId
                                        + " num failures " + config.numConnectionFailures);
                            }
                        }
                        message.replace("\n", "");
                        message.replace("\r", "");
                        config.lastFailure = message;
                    }
                }
            }
        }
static booleanhasHardwareBackedKey(java.security.cert.Certificate certificate)

        return KeyChain.isBoundKeyAlgorithm(certificate.getPublicKey().getAlgorithm());
booleaninstallKeys(android.net.wifi.WifiEnterpriseConfig config, java.lang.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;
static booleanisHardwareBackedKey(java.security.PrivateKey key)

        return KeyChain.isBoundKeyAlgorithm(key.getAlgorithm());
public booleanisLastSelectedConfiguration(android.net.wifi.WifiConfiguration config)

        return (lastSelectedConfiguration != null
                && config != null
                && lastSelectedConfiguration.equals(config.configKey()));
booleanisUsingStaticIp(int netId)
Return if the specified network is using static IP

param
network id
return
{@code true} if using static ip for netId

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null && config.getIpAssignment() == IpAssignment.STATIC) {
            return true;
        }
        return false;
public voidlinkConfiguration(android.net.wifi.WifiConfiguration config)
This function run thru the Saved WifiConfigurations and check if some should be linked.

param
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 || link.ephemeral) {
                continue;
            }

            // Autojoin will be allowed to dynamically jump from a linked configuration
            // to another, hence only link configurations that have equivalent level of security
            if (!link.allowedKeyManagement.equals(config.allowedKeyManagement)) {
                continue;
            }

            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, link only if they are equal
                if (config.defaultGwMacAddress.equals(link.defaultGwMacAddress)) {
                    if (VDBG) {
                        loge("linkConfiguration link due to same gw " + link.SSID +
                                " and " + config.SSID + " GW " + config.defaultGwMacAddress);
                    }
                    doLink = true;
                }
            } else {
                // We do not know BOTH default gateways hence we will try to link
                // hoping that WifiConfigurations are indeed behind the same gateway.
                // once both WifiConfiguration have been tried and thus once both efault gateways
                // are known we will revisit the choice of linking them
                if ((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 (VVDBG) {
                                loge("linkConfiguration try to link due to DBDC BSSID match "
                                        + link.SSID +
                                        " and " + config.SSID + " bssida " + abssid
                                        + " bssidb " + bbssid);
                            }
                            if (abssid.regionMatches(true, 0, bbssid, 0, 16)) {
                                // If first 16 ascii characters of BSSID matches,
                                // we assume this is a DBDC
                                doLink = true;
                            }
                        }
                    }
                }
            }

            if (doLink == true && onlyLinkSameCredentialConfigurations) {
                String apsk = readNetworkVariableFromSupplicantFile(link.SSID, "psk");
                String bpsk = readNetworkVariableFromSupplicantFile(config.SSID, "psk");
                if (apsk == null || bpsk == null
                        || TextUtils.isEmpty(apsk) || TextUtils.isEmpty(apsk)
                        || apsk.equals("*") || apsk.equals(DELETED_CONFIG_PSK)
                        || !apsk.equals(bpsk)) {
                    doLink = false;
                }
            }

            if (doLink) {
                if (VDBG) {
                   loge("linkConfiguration: will link " + link.configKey()
                           + " and " + config.configKey());
                }
                if (link.linkedConfigurations == null) {
                    link.linkedConfigurations = new HashMap<String, Integer>();
                }
                if (config.linkedConfigurations == null) {
                    config.linkedConfigurations = new HashMap<String, Integer>();
                }
                if (link.linkedConfigurations.get(config.configKey()) == null) {
                    link.linkedConfigurations.put(config.configKey(), Integer.valueOf(1));
                    link.dirty = true;
                }
                if (config.linkedConfigurations.get(link.configKey()) == null) {
                    config.linkedConfigurations.put(link.configKey(), Integer.valueOf(1));
                    config.dirty = true;
                }
            } else {
                if (link.linkedConfigurations != null
                        && (link.linkedConfigurations.get(config.configKey()) != null)) {
                    if (VDBG) {
                        loge("linkConfiguration: un-link " + config.configKey()
                                + " from " + link.configKey());
                    }
                    link.dirty = true;
                    link.linkedConfigurations.remove(config.configKey());
                }
                if (config.linkedConfigurations != null
                        && (config.linkedConfigurations.get(link.configKey()) != null)) {
                    if (VDBG) {
                        loge("linkConfiguration: un-link " + link.configKey()
                                + " from " + config.configKey());
                    }
                    config.dirty = true;
                    config.linkedConfigurations.remove(link.configKey());
                }
            }
        }
voidloadAndEnableAllNetworks()
Fetch the list of configured networks and enable all stored networks in supplicant.

        if (DBG) log("Loading config and enabling all networks ");
        loadConfiguredNetworks();
        enableAllNetworks();
voidloadConfiguredNetworks()


        mLastPriority = 0;

        mConfiguredNetworks.clear();
        mNetworkIds.clear();

        int last_id = -1;
        boolean done = false;
        while (!done) {

            String listStr = mWifiNative.listNetworks(last_id);
            if (listStr == null)
                return;

            String[] lines = listStr.split("\n");

            if (showNetworks) {
                localLog("WifiConfigStore: loadConfiguredNetworks:  ");
                for (String net : lines) {
                    localLog(net);
                }
            }

            // Skip the first line, which is a header
            for (int i = 1; i < lines.length; i++) {
                String[] result = lines[i].split("\t");
                // network-id | ssid | bssid | flags
                WifiConfiguration config = new WifiConfiguration();
                try {
                    config.networkId = Integer.parseInt(result[0]);
                    last_id = config.networkId;
                } catch(NumberFormatException e) {
                    loge("Failed to read network-id '" + result[0] + "'");
                    continue;
                }
                if (result.length > 3) {
                    if (result[3].indexOf("[CURRENT]") != -1)
                        config.status = WifiConfiguration.Status.CURRENT;
                    else if (result[3].indexOf("[DISABLED]") != -1)
                        config.status = WifiConfiguration.Status.DISABLED;
                    else
                        config.status = WifiConfiguration.Status.ENABLED;
                } else {
                    config.status = WifiConfiguration.Status.ENABLED;
                }

                readNetworkVariables(config);

                Checksum csum = new CRC32();
                if (config.SSID != null) {
                    csum.update(config.SSID.getBytes(), 0, config.SSID.getBytes().length);
                    long d = csum.getValue();
                    if (mDeletedSSIDs.contains(d)) {
                        loge(" got CRC for SSID " + config.SSID + " -> " + d + ", was deleted");
                    }
                }

                if (config.priority > mLastPriority) {
                    mLastPriority = config.priority;
                }

                config.setIpAssignment(IpAssignment.DHCP);
                config.setProxySettings(ProxySettings.NONE);

                if (mNetworkIds.containsKey(configKey(config))) {
                    // That SSID is already known, just ignore this duplicate entry
                    if (showNetworks) localLog("discarded duplicate network ", config.networkId);
                } else if(config.isValid()){
                    mConfiguredNetworks.put(config.networkId, config);
                    mNetworkIds.put(configKey(config), config.networkId);
                    if (showNetworks) localLog("loaded configured network", config.networkId);
                } else {
                    if (showNetworks) log("Ignoring loaded configured for network " + config.networkId
                        + " because config are not valid");
                }
            }

            done = (lines.length == 1);
        }

        readIpAndProxyConfigurations();
        readNetworkHistory();
        readAutoJoinConfig();

        sendConfiguredNetworksChangedBroadcast();

        if (showNetworks) 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 (DBG) {
                    localLog("--- Begin wpa_supplicant.conf Contents ---", true);
                    for (String line = reader.readLine(); line != null; line = reader.readLine()) {
                        localLog(line, true);
                    }
                    localLog("--- End wpa_supplicant.conf Contents ---", true);
                }
            } catch (FileNotFoundException e) {
                localLog("Could not open " + SUPPLICANT_CONFIG_FILE + ", " + e, true);
            } catch (IOException e) {
                localLog("Could not read " + SUPPLICANT_CONFIG_FILE + ", " + e, true);
            } finally {
                try {
                    if (reader != null) {
                        reader.close();
                    }
                } catch (IOException e) {
                    // Just ignore the fact that we couldn't close
                }
            }
        }
private voidlocalLog(java.lang.String s)

        if (mLocalLog != null) {
            mLocalLog.log(s);
        }
private voidlocalLog(java.lang.String s, boolean force)

        localLog(s);
        if (force) loge(s);
private voidlocalLog(java.lang.String s, int netId)

        if (mLocalLog == null) {
            return;
        }

        WifiConfiguration config;
        synchronized(mConfiguredNetworks) {
            config = mConfiguredNetworks.get(netId);
        }

        if (config != null) {
            mLocalLog.log(s + " " + config.getPrintableSsid() + " " + netId
                    + " status=" + config.status
                    + " key=" + config.configKey());
        } else {
            mLocalLog.log(s + " " + netId);
        }
protected voidlog(java.lang.String s)

        Log.d(TAG, s);
protected voidloge(java.lang.String s)

        loge(s, false);
protected voidloge(java.lang.String s, boolean stack)

        if (stack) {
            Log.e(TAG, s + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName()
                    + " - " + Thread.currentThread().getStackTrace()[3].getMethodName()
                    + " - " + Thread.currentThread().getStackTrace()[4].getMethodName()
                    + " - " + Thread.currentThread().getStackTrace()[5].getMethodName());
        } else {
            Log.e(TAG, s);
        }
private intlookupString(java.lang.String string, java.lang.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;
public java.util.HashSetmakeChannelList(android.net.wifi.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()
                    + " max=" + maxNumActiveChannelsForPartialScans);
            if (config.scanResultCache != null) {
                dbg.append(" bssids=" + config.scanResultCache.size());
            }
            if (config.linkedConfigurations != null) {
                dbg.append(" linked=" + config.linkedConfigurations.size());
            }
            loge(dbg.toString());
        }

        int numChannels = 0;
        if (config.scanResultCache != null && config.scanResultCache.size() > 0) {
            for (ScanResult result : config.scanResultCache.values()) {
                //TODO : cout active and passive channels separately
                if (numChannels > maxNumActiveChannelsForPartialScans) {
                    break;
                }
                if (VDBG) {
                    boolean test = (now_ms - result.seen) < age;
                    loge("has " + result.BSSID + " freq=" + Integer.toString(result.frequency)
                            + " age=" + Long.toString(now_ms - result.seen) + " ?=" + test);
                }
                if (((now_ms - result.seen) < age)/*||(!restrict || result.is24GHz())*/) {
                    channels.add(result.frequency);
                    numChannels++;
                }
            }
        }

        //get channels for linked configurations
        if (config.linkedConfigurations != null) {
            for (String key : config.linkedConfigurations.keySet()) {
                WifiConfiguration linked = getWifiConfiguration(key);
                if (linked == null)
                    continue;
                if (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 (numChannels > maxNumActiveChannelsForPartialScans) {
                        break;
                    }
                    if (((now_ms - result.seen) < age)/*||(!restrict || result.is24GHz())*/) {
                        channels.add(result.frequency);
                        numChannels++;
                    }
                }
            }
        }
        return channels;
private static java.lang.StringmakeString(java.util.BitSet set, java.lang.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 voidmarkAllNetworksDisabled()

        markAllNetworksDisabledExcept(INVALID_NETWORK_ID);
private voidmarkAllNetworksDisabledExcept(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;
                }
            }
        }
voidmigrateCerts(android.net.wifi.WifiEnterpriseConfig config)
Migrate certs from global pool to wifi UID if not already done

        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);
            }
        }
booleanmigrateOldEapTlsNative(android.net.wifi.WifiEnterpriseConfig config, int netId)
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

        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;
static booleanneedsKeyStore(android.net.wifi.WifiEnterpriseConfig config)

        // Has no keys to be installed
        if (config.getClientCertificate() == null && config.getCaCertificate() == null)
            return false;
        return true;
static booleanneedsSoftwareBackedKeyStore(android.net.wifi.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;
booleanneedsUnlockedKeyStore()


        // 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;
voidnoteRoamingFailure(android.net.wifi.WifiConfiguration config, int reason)

        if (config == null) return;
        config.lastRoamingFailure = System.currentTimeMillis();
        config.roamingFailureBlackListTimeMilli
                = 2 * (config.roamingFailureBlackListTimeMilli + 1000);
        if (config.roamingFailureBlackListTimeMilli
                > networkSwitchingBlackListPeriodMilli) {
            config.roamingFailureBlackListTimeMilli =
                    networkSwitchingBlackListPeriodMilli;
        }
        config.lastRoamingFailureReason = reason;
private booleanputCertInKeyStore(java.lang.String name, java.security.cert.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;
        }
private voidreadAutoJoinConfig()

        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_AUTO_JOIN_WHILE_ASSOCIATED_KEY)) {
                    String st = key.replace(ENABLE_AUTO_JOIN_WHILE_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableAutoJoinWhenAssociated = Integer.parseInt(st) != 0;
                        Log.d(TAG,"readAutoJoinConfig: enabled = " + enableAutoJoinWhenAssociated);
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED_KEY)) {
                    String st = key.replace(ENABLE_FULL_BAND_SCAN_WHEN_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableFullBandScanWhenAssociated = Integer.parseInt(st) != 0;
                        Log.d(TAG,"readAutoJoinConfig: enableFullBandScanWhenAssociated = "
                                + enableFullBandScanWhenAssociated);
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(ENABLE_AUTO_JOIN_SCAN_WHILE_ASSOCIATED_KEY)) {
                    String st = key.replace(ENABLE_AUTO_JOIN_SCAN_WHILE_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableAutoJoinScanWhenAssociated = Integer.parseInt(st) != 0;
                        Log.d(TAG,"readAutoJoinConfig: enabled = "
                                + enableAutoJoinScanWhenAssociated);
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED_KEY)) {
                    String st = key.replace(ENABLE_CHIP_WAKE_UP_WHILE_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableChipWakeUpWhenAssociated = Integer.parseInt(st) != 0;
                        Log.d(TAG,"readAutoJoinConfig: enabled = "
                                + enableChipWakeUpWhenAssociated);
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY)) {
                    String st = key.replace(ENABLE_RSSI_POLL_WHILE_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableRssiPollWhenAssociated = Integer.parseInt(st) != 0;
                        Log.d(TAG,"readAutoJoinConfig: enabled = "
                                + enableRssiPollWhenAssociated);
                    } 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(THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS_KEY)) {
                    String st = key.replace(THRESHOLD_MAX_TX_PACKETS_FOR_FULL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxTxPacketForNetworkSwitching = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxTxPacketForFullScans = "
                                + Integer.toString(maxTxPacketForFullScans));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS_KEY)) {
                    String st = key.replace(THRESHOLD_MAX_RX_PACKETS_FOR_FULL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxRxPacketForNetworkSwitching = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxRxPacketForFullScans = "
                                + Integer.toString(maxRxPacketForFullScans));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS_KEY)) {
                    String st = key.replace(THRESHOLD_MAX_TX_PACKETS_FOR_PARTIAL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxTxPacketForNetworkSwitching = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxTxPacketForPartialScans = "
                                + Integer.toString(maxTxPacketForPartialScans));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS_KEY)) {
                    String st = key.replace(THRESHOLD_MAX_RX_PACKETS_FOR_PARTIAL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxRxPacketForNetworkSwitching = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxRxPacketForPartialScans = "
                                + Integer.toString(maxRxPacketForPartialScans));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }

                if (key.startsWith(WIFI_VERBOSE_LOGS_KEY)) {
                    String st = key.replace(WIFI_VERBOSE_LOGS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        enableVerboseLogging = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: enable verbose logs = "
                                + Integer.toString(enableVerboseLogging));
                    } 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 {
                        bandPreferenceBoostThreshold5 = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: bandPreferenceBoostThreshold5 = "
                            + Integer.toString(bandPreferenceBoostThreshold5));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY)) {
                    String st = key.replace(ASSOCIATED_PARTIAL_SCAN_PERIOD_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        associatedPartialScanPeriodMilli = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: associatedScanPeriod = "
                                + Integer.toString(associatedPartialScanPeriodMilli));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(ASSOCIATED_FULL_SCAN_BACKOFF_KEY)) {
                    String st = key.replace(ASSOCIATED_FULL_SCAN_BACKOFF_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        associatedFullScanBackoff = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: associatedFullScanBackoff = "
                                + Integer.toString(associatedFullScanBackoff));
                    } 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 {
                        bandPreferencePenaltyThreshold5 = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: bandPreferencePenaltyThreshold5 = "
                            + Integer.toString(bandPreferencePenaltyThreshold5));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED_KEY)) {
                    String st = key.replace(ALWAYS_ENABLE_SCAN_WHILE_ASSOCIATED_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        alwaysEnableScansWhileAssociated = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: alwaysEnableScansWhileAssociated = "
                                + Integer.toString(alwaysEnableScansWhileAssociated));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY)) {
                    String st = key.replace(MAX_NUM_PASSIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxNumPassiveChannelsForPartialScans = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxNumPassiveChannelsForPartialScans = "
                                + Integer.toString(maxNumPassiveChannelsForPartialScans));
                    } catch (NumberFormatException e) {
                        Log.d(TAG,"readAutoJoinConfig: incorrect format :" + key);
                    }
                }
                if (key.startsWith(MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY)) {
                    String st = key.replace(MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCANS_KEY, "");
                    st = st.replace(SEPARATOR_KEY, "");
                    try {
                        maxNumActiveChannelsForPartialScans = Integer.parseInt(st);
                        Log.d(TAG,"readAutoJoinConfig: maxNumActiveChannelsForPartialScans = "
                                + Integer.toString(maxNumActiveChannelsForPartialScans));
                    } 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 (FileNotFoundException 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 voidreadIpAndProxyConfigurations()

        SparseArray<IpConfiguration> networks = super.readIpAndProxyConfigurations(ipConfigFile);

        if (networks == null || networks.size() == 0) {
            // IpConfigStore.readIpAndProxyConfigurations has already logged an error.
            return;
        }

        for (int i = 0; i < networks.size(); i++) {
            int id = networks.keyAt(i);
            WifiConfiguration config = mConfiguredNetworks.get(mNetworkIds.get(id));


            if (config == null || config.autoJoinStatus == WifiConfiguration.AUTO_JOIN_DELETED ||
                    config.ephemeral) {
                loge("configuration found for missing network, nid=" + id
                        +", ignored, networks.size=" + Integer.toString(networks.size()));
            } else {
                config.setIpConfiguration(networks.valueAt(i));
            }
        }
private voidreadNetworkHistory()

        if (showNetworks) {
            localLog("readNetworkHistory() path:" + networkHistoryConfigFile);
        }
        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) {
                        localLog("readNetworkHistory didnt find netid for hash="
                                + Integer.toString(configKey.hashCode())
                                + " key: " + configKey);
                        continue;
                    }
                    config = mConfiguredNetworks.get(n);
                    if (config == null) {
                        localLog("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_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(NO_INTERNET_ACCESS_REPORTS_KEY)) {
                        String access = key.replace(NO_INTERNET_ACCESS_REPORTS_KEY, "");
                        access = access.replace(SEPARATOR_KEY, "");
                        config.numNoInternetAccessReports = Integer.parseInt(access);
                    }

                    if (key.startsWith(VALIDATED_INTERNET_ACCESS_KEY)) {
                        String access = key.replace(VALIDATED_INTERNET_ACCESS_KEY, "");
                        access = access.replace(SEPARATOR_KEY, "");
                        config.validatedInternetAccess = Boolean.parseBoolean(access);
                    }

                    if (key.startsWith(EPHEMERAL_KEY)) {
                        String access = key.replace(EPHEMERAL_KEY, "");
                        access = access.replace(SEPARATOR_KEY, "");
                        config.ephemeral = Boolean.parseBoolean(access);
                    }

                    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(NUM_IP_CONFIG_FAILURES_KEY)) {
                        String num = key.replace(NUM_IP_CONFIG_FAILURES_KEY, "");
                        num = num.replace(SEPARATOR_KEY, "");
                        config.numIpConfigFailures = Integer.parseInt(num);
                    }

                    if (key.startsWith(NUM_AUTH_FAILURES_KEY)) {
                        String num = key.replace(NUM_AUTH_FAILURES_KEY, "");
                        num = num.replace(SEPARATOR_KEY, "");
                        config.numIpConfigFailures = 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(JOIN_ATTEMPT_BOOST_KEY)) {
                        String num = key.replace(JOIN_ATTEMPT_BOOST_KEY, "");
                        num = num.replace(SEPARATOR_KEY, "");
                        config.autoJoinUseAggressiveJoinAttemptThreshold = 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;
                            }
                        }

                        if (key.startsWith(DELETED_CRC32_KEY)) {
                            String crc = key.replace(DELETED_CRC32_KEY, "");
                            Long c = Long.parseLong(crc);
                            mDeletedSSIDs.add(c);
                        }
                        if (key.startsWith(DELETED_EPHEMERAL_KEY)) {
                            String s = key.replace(DELETED_EPHEMERAL_KEY, "");
                            if (!TextUtils.isEmpty(s)) {
                                s = s.replace(SEPARATOR_KEY, "");
                                mDeletedEphemeralSSIDs.add(s);
                            }
                        }
                    }
                }
            }
        } 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 java.lang.StringreadNetworkVariableFromSupplicantFile(java.lang.String ssid, java.lang.String key)

        long start = SystemClock.elapsedRealtimeNanos();
        Map<String, String> data = readNetworkVariablesFromSupplicantFile(key);
        long end = SystemClock.elapsedRealtimeNanos();

        if (VDBG) {
            loge("readNetworkVariableFromSupplicantFile ssid=[" + ssid + "] key=" + key
                    + " duration=" + (long)(end - start));
        }
        return data.get(ssid);
private voidreadNetworkVariables(android.net.wifi.WifiConfiguration config)
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.


        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 java.util.MapreadNetworkVariablesFromSupplicantFile(java.lang.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 (line.matches("[ \\t]*network=\\{")) {
                    found = true;
                    networkSsid = null;
                    value = null;
                } else if (line.matches("[ \\t]*\\}")) {
                    found = false;
                    networkSsid = null;
                    value = null;
                }

                if (found) {
                    String trimmedLine = line.trim();
                    if (trimmedLine.startsWith("ssid=")) {
                        networkSsid = trimmedLine.substring(5);
                    } else if (trimmedLine.startsWith(key + "=")) {
                        value = trimmedLine.substring(key.length() + 1);
                    }

                    if (networkSsid != null && value != null) {
                        result.put(networkSsid, value);
                    }
                }
            }
        } catch (FileNotFoundException e) {
            if (VDBG) loge("Could not open " + SUPPLICANT_CONFIG_FILE + ", " + e);
        } catch (IOException e) {
            if (VDBG) loge("Could not read " + SUPPLICANT_CONFIG_FILE + ", " + e);
        } finally {
            try {
                if (reader != null) {
                    reader.close();
                }
            } catch (IOException e) {
                // Just ignore the fact that we couldn't close
            }
        }

        return result;
private booleanremoveConfigAndSendBroadcastIfNeeded(int netId)

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            if (VDBG) {
                loge("removeNetwork " + Integer.toString(netId) + " key=" +
                        config.configKey() + " config.id=" + Integer.toString(config.networkId));
            }

            // cancel the last user choice
            if (config.configKey().equals(lastSelectedConfiguration)) {
                lastSelectedConfiguration = null;
            }

            // Remove any associated keys
            if (config.enterpriseConfig != null) {
                removeKeys(config.enterpriseConfig);
            }

            if (config.selfAdded || config.linkedConfigurations != null
                    || config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) {
                if (!TextUtils.isEmpty(config.SSID)) {
                    /* Remember that we deleted this PSK SSID */
                    Checksum csum = new CRC32();
                    if (config.SSID != null) {
                        csum.update(config.SSID.getBytes(), 0, config.SSID.getBytes().length);
                        mDeletedSSIDs.add(csum.getValue());
                    }
                    loge("removeNetwork " + Integer.toString(netId)
                            + " key=" + config.configKey()
                            + " config.id=" + Integer.toString(config.networkId)
                            + "  crc=" + csum.getValue());
                }
            }

            mConfiguredNetworks.remove(netId);
            mNetworkIds.remove(configKey(config));

            writeIpAndProxyConfigurations();
            sendConfiguredNetworksChangedBroadcast(config, WifiManager.CHANGE_REASON_REMOVED);
            writeKnownNetworkHistory(true);
        }
        return true;
private static java.lang.StringremoveDoubleQuotes(java.lang.String string)

        int length = string.length();
        if ((length > 1) && (string.charAt(0) == '"")
                && (string.charAt(length - 1) == '"")) {
            return string.substring(1, length - 1);
        }
        return string;
voidremoveKeys(android.net.wifi.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);
        }
booleanremoveNetwork(int netId)
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

        if (showNetworks) localLog("removeNetwork", netId);
        boolean ret = mWifiNative.removeNetwork(netId);
        if (ret) {
            removeConfigAndSendBroadcastIfNeeded(netId);
        }
        return ret;
booleansaveConfig()
Save the configured networks in supplicant to disk

return
{@code true} if it succeeds, {@code false} otherwise

        return mWifiNative.saveConfig();
NetworkUpdateResultsaveNetwork(android.net.wifi.WifiConfiguration config, int uid)
Add/update the specified configuration and save config

param
config WifiConfiguration to be saved
return
network update result

        WifiConfiguration conf;

        // A new network cannot have null SSID
        if (config == null || (config.networkId == INVALID_NETWORK_ID &&
                config.SSID == null)) {
            return new NetworkUpdateResult(INVALID_NETWORK_ID);
        }
        if (VDBG) localLog("WifiConfigStore: saveNetwork netId", config.networkId);
        if (VDBG) {
            loge("WifiConfigStore saveNetwork, size=" + mConfiguredNetworks.size()
                    + " SSID=" + config.SSID
                    + " Uid=" + Integer.toString(config.creatorUid)
                    + "/" + Integer.toString(config.lastUpdateUid));
        }

        if (mDeletedEphemeralSSIDs.remove(config.SSID)) {
            if (VDBG) {
                loge("WifiConfigStore: removed from ephemeral blacklist: " + config.SSID);
            }
            // NOTE: This will be flushed to disk as part of the addOrUpdateNetworkNative call
            // below, since we're creating/modifying a config.
        }

        boolean newNetwork = (config.networkId == INVALID_NETWORK_ID);
        NetworkUpdateResult result = addOrUpdateNetworkNative(config, uid);
        int netId = result.getNetworkId();

        if (VDBG) localLog("WifiConfigStore: saveNetwork got it back netId=", netId);

        /* enable a new network */
        if (newNetwork && netId != INVALID_NETWORK_ID) {
            if (VDBG) localLog("WifiConfigStore: will enable netId=", netId);

            mWifiNative.enableNetwork(netId, false);
            conf = mConfiguredNetworks.get(netId);
            if (conf != null)
                conf.status = Status.ENABLED;
        }

        conf = mConfiguredNetworks.get(netId);
        if (conf != null) {
            if (conf.autoJoinStatus != WifiConfiguration.AUTO_JOIN_ENABLED) {
                if (VDBG) localLog("WifiConfigStore: re-enabling: " + conf.SSID);

                // reenable autojoin, since new information has been provided
                conf.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED);
                enableNetworkWithoutBroadcast(conf.networkId, false);
            }
            if (VDBG) {
                loge("WifiConfigStore: saveNetwork got config back netId="
                        + Integer.toString(netId)
                        + " uid=" + Integer.toString(config.creatorUid));
            }
        }

        mWifiNative.saveConfig();
        sendConfiguredNetworksChangedBroadcast(conf, result.isNewNetwork() ?
                WifiManager.CHANGE_REASON_ADDED : WifiManager.CHANGE_REASON_CONFIG_CHANGE);
        return result;
voidsaveWifiConfigBSSID(android.net.wifi.WifiConfiguration config)

        // Sanity check the config is valid
        if (config == null || (config.networkId == INVALID_NETWORK_ID &&
                config.SSID == null)) {
            return;
        }

        // If an app specified a BSSID then dont over-write it
        if (config.BSSID != null && config.BSSID != "any") {
            return;
        }

        // If autojoin specified a BSSID then write it in the network block
        if (config.autoJoinBSSID != null) {
            loge("saveWifiConfigBSSID Setting BSSID for " + config.configKey()
                    + " to " + config.autoJoinBSSID);
            if (!mWifiNative.setNetworkVariable(
                    config.networkId,
                    WifiConfiguration.bssidVarName,
                    config.autoJoinBSSID)) {
                loge("failed to set BSSID: " + config.autoJoinBSSID);
            } else if (config.autoJoinBSSID.equals("any")) {
                // Paranoia, we just want to make sure that we restore the config to normal
                mWifiNative.saveConfig();
            }
        }
booleanselectNetwork(int netId)
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

        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, -1);
                }
            }
            mLastPriority = 0;
        }

        // Set to the highest priority and save the configuration.
        WifiConfiguration config = new WifiConfiguration();
        config.networkId = netId;
        config.priority = ++mLastPriority;

        addOrUpdateNetworkNative(config, -1);
        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;
private voidsendConfiguredNetworksChangedBroadcast(android.net.wifi.WifiConfiguration network, int reason)
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.

        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);
private voidsendConfiguredNetworksChangedBroadcast()
Should be called when multiple network configuration changes are made.

        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);
voidsetDefaultGwMacAddress(int netId, java.lang.String macAddress)
set default GW MAC address

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            //update defaultGwMacAddress
            config.defaultGwMacAddress = macAddress;
        }
public voidsetLastSelectedConfiguration(int netId)

        if (VDBG) {
            loge("setLastSelectedConfiguration " + Integer.toString(netId));
        }
        if (netId == WifiConfiguration.INVALID_NETWORK_ID) {
            lastSelectedConfiguration = null;
        } else {
            WifiConfiguration selected = getWifiConfiguration(netId);
            if (selected == null) {
                lastSelectedConfiguration = null;
            } else {
                lastSelectedConfiguration = selected.configKey();
                selected.numConnectionFailures = 0;
                selected.numIpConfigFailures = 0;
                selected.numAuthFailures = 0;
                selected.numNoInternetAccessReports = 0;
                if (VDBG) {
                    loge("setLastSelectedConfiguration now: " + lastSelectedConfiguration);
                }
            }
        }
voidsetStaticIpConfiguration(int netId, android.net.StaticIpConfiguration staticIpConfiguration)
Set the static IP configuration for a given network id

        WifiConfiguration config = mConfiguredNetworks.get(netId);
        if (config != null) {
            config.setStaticIpConfiguration(staticIpConfiguration);
        }
android.net.wifi.WpsResultstartWpsPbc(android.net.wifi.WpsInfo config)
Start WPS push button configuration

param
config WPS configuration
return
WpsResult indicating status and pin

        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;
android.net.wifi.WpsResultstartWpsWithPinFromAccessPoint(android.net.wifi.WpsInfo config)
Start WPS pin method configuration with pin obtained from the access point

param
config WPS configuration
return
Wps result containing status and pin

        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;
android.net.wifi.WpsResultstartWpsWithPinFromDevice(android.net.wifi.WpsInfo config)
Start WPS pin method configuration with pin obtained from the device

return
WpsResult indicating status and pin

        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;
voidupdateConfiguration(android.net.wifi.WifiInfo info)
Update the configuration and BSSID with latest RSSI value.

        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());
                }
            }
        }
public booleanupdateSavedNetworkHistory(android.net.wifi.ScanResult scanResult)

        int numConfigFound = 0;
        if (scanResult == null)
            return false;

        String SSID = "\"" + scanResult.SSID + "\"";

        for (WifiConfiguration config : mConfiguredNetworks.values()) {
            boolean found = false;

            if (config.SSID == null || !config.SSID.equals(SSID)) {
                // SSID mismatch
                if (VVDBG) {
                    loge("updateSavedNetworkHistory(): SSID mismatch " + config.configKey()
                            + " SSID=" + config.SSID + " " + SSID);
                }
                continue;
            }
            if (VDBG) {
                loge("updateSavedNetworkHistory(): try " + config.configKey()
                        + " SSID=" + config.SSID + " " + scanResult.SSID
                        + " " + scanResult.capabilities
                        + " ajst=" + config.autoJoinStatus);
            }
            if (scanResult.capabilities.contains("WEP")
                    && config.configKey().contains("WEP")) {
                found = true;
            } else if (scanResult.capabilities.contains("PSK")
                    && config.configKey().contains("PSK")) {
                found = true;
            } else if (scanResult.capabilities.contains("EAP")
                    && config.configKey().contains("EAP")) {
                found = true;
            } else if (!scanResult.capabilities.contains("WEP")
                && !scanResult.capabilities.contains("PSK")
                && !scanResult.capabilities.contains("EAP")
                && !config.configKey().contains("WEP")
                    && !config.configKey().contains("PSK")
                    && !config.configKey().contains("EAP")) {
                found = true;
            }

            if (found) {
                numConfigFound ++;

                if (config.autoJoinStatus >= WifiConfiguration.AUTO_JOIN_DELETED) {
                    if (VVDBG) {
                        loge("updateSavedNetworkHistory(): found a deleted, skip it...  "
                                + config.configKey());
                    }
                    // The scan result belongs to a deleted config:
                    //   - increment numConfigFound to remember that we found a config
                    //            matching for this scan result
                    //   - dont do anything since the config was deleted, just skip...
                    continue;
                }

                if (config.scanResultCache == null) {
                    config.scanResultCache = new HashMap<String, ScanResult>();
                }

                // Adding a new BSSID
                ScanResult result = config.scanResultCache.get(scanResult.BSSID);
                if (result == null) {
                    config.dirty = true;
                } else {
                    // transfer the black list status
                    scanResult.autoJoinStatus = result.autoJoinStatus;
                    scanResult.blackListTimestamp = result.blackListTimestamp;
                    scanResult.numIpConfigFailures = result.numIpConfigFailures;
                    scanResult.numConnection = result.numConnection;
                    scanResult.isAutoJoinCandidate = result.isAutoJoinCandidate;
                }

                if (config.ephemeral) {
                    // For an ephemeral Wi-Fi config, the ScanResult should be considered
                    // untrusted.
                    scanResult.untrusted = true;
                }

                if (config.scanResultCache.size() > (maxNumScanCacheEntries + 64)) {
                    long now_dbg = 0;
                    if (VVDBG) {
                        loge(" Will trim config " + config.configKey()
                                + " size " + config.scanResultCache.size());

                        for (ScanResult r : config.scanResultCache.values()) {
                            loge("     " + result.BSSID + " " + result.seen);
                        }
                        now_dbg = SystemClock.elapsedRealtimeNanos();
                    }
                    // Trim the scan result cache to maxNumScanCacheEntries entries max
                    // Since this operation is expensive, make sure it is not performed
                    // until the cache has grown significantly above the trim treshold
                    config.trimScanResultsCache(maxNumScanCacheEntries);
                    if (VVDBG) {
                        long diff = SystemClock.elapsedRealtimeNanos() - now_dbg;
                        loge(" Finished trimming config, time(ns) " + diff);
                        for (ScanResult r : config.scanResultCache.values()) {
                            loge("     " + r.BSSID + " " + r.seen);
                        }
                    }
                }

                // Add the scan result to this WifiConfiguration
                config.scanResultCache.put(scanResult.BSSID, scanResult);
                // Since we added a scan result to this configuration, re-attempt linking
                linkConfiguration(config);
            }

            if (VDBG && found) {
                String status = "";
                if (scanResult.autoJoinStatus > 0) {
                    status = " status=" + Integer.toString(scanResult.autoJoinStatus);
                }
                loge("        got known scan result " +
                        scanResult.BSSID + " key : "
                        + config.configKey() + " num: " +
                        Integer.toString(config.scanResultCache.size())
                        + " rssi=" + Integer.toString(scanResult.level)
                        + " freq=" + Integer.toString(scanResult.frequency)
                        + status);
            }
        }
        return numConfigFound != 0;
voidupdateStatus(int netId, android.net.NetworkInfo.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;
            }
        }
public android.net.wifi.WifiConfigurationwifiConfigurationFromScanResult(android.net.wifi.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;
private voidwriteIpAndProxyConfigurations()

        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 NetworkUpdateResultwriteIpAndProxyConfigurationsOnChange(android.net.wifi.WifiConfiguration currentConfig, android.net.wifi.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);
public voidwriteKnownNetworkHistory(boolean force)

        boolean needUpdate = force;

        /* Make a copy */
        final List<WifiConfiguration> networks = new ArrayList<WifiConfiguration>();
        for (WifiConfiguration config : mConfiguredNetworks.values()) {
            networks.add(new WifiConfiguration(config));
            if (config.dirty == true) {
                loge(" rewrite network history for " + config.configKey());
                config.dirty = false;
                needUpdate = true;
            }
        }
        if (VDBG) {
            loge(" writeKnownNetworkHistory() num networks:" +
                    mConfiguredNetworks.size() + " needWrite=" + needUpdate);
        }
        if (needUpdate == false) {
            return;
        }
        mWriter.write(networkHistoryConfigFile, new DelayedDiskWrite.Writer() {
            public void onWriteCalled(DataOutputStream out) throws IOException {
                for (WifiConfiguration config : networks) {
                    //loge("onWriteCalled write SSID: " + config.SSID);
                   /* if (config.getLinkProperties() != null)
                        loge(" lp " + config.getLinkProperties().toString());
                    else
                        loge("attempt config w/o lp");
                    */

                    if (VDBG) {
                        int num = 0;
                        int numlink = 0;
                        if (config.connectChoices != null) {
                            num = config.connectChoices.size();
                        }
                        if (config.linkedConfigurations != null) {
                            numlink = config.linkedConfigurations.size();
                        }
                        loge("saving network history: " + config.configKey()  + " gw: " +
                                config.defaultGwMacAddress + " autojoin-status: " +
                                config.autoJoinStatus + " ephemeral=" + config.ephemeral
                                + " choices:" + Integer.toString(num)
                                + " link:" + Integer.toString(numlink)
                                + " status:" + Integer.toString(config.status)
                                + " nid:" + Integer.toString(config.networkId));
                    }

                    if (config.isValid() == false)
                        continue;

                    if (config.SSID == null) {
                        if (VDBG) {
                            loge("writeKnownNetworkHistory trying to write config with null SSID");
                        }
                        continue;
                    }
                    if (VDBG) {
                        loge("writeKnownNetworkHistory write config " + config.configKey());
                    }
                    out.writeUTF(CONFIG_KEY + 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);
                    out.writeUTF(NO_INTERNET_ACCESS_REPORTS_KEY
                            + Integer.toString(config.numNoInternetAccessReports)
                            + SEPARATOR_KEY);
                    out.writeUTF(VALIDATED_INTERNET_ACCESS_KEY
                            + Boolean.toString(config.validatedInternetAccess)
                            + SEPARATOR_KEY);
                    out.writeUTF(EPHEMERAL_KEY
                            + Boolean.toString(config.ephemeral)
                            + 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(NUM_AUTH_FAILURES_KEY
                            + Integer.toString(config.numAuthFailures)
                            + SEPARATOR_KEY);
                    out.writeUTF(NUM_IP_CONFIG_FAILURES_KEY
                            + Integer.toString(config.numIpConfigFailures)
                            + 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(JOIN_ATTEMPT_BOOST_KEY
                            + Integer.toString(config.autoJoinUseAggressiveJoinAttemptThreshold)
                            + 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) {
                        loge("writeKnownNetworkHistory write linked "
                                + config.linkedConfigurations.size());

                        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);
                    // Add extra blank lines for clarity
                    out.writeUTF(SEPARATOR_KEY);
                    out.writeUTF(SEPARATOR_KEY);
                }
                if (mDeletedSSIDs != null && mDeletedSSIDs.size() > 0) {
                    for (Long i : mDeletedSSIDs) {
                        out.writeUTF(DELETED_CRC32_KEY);
                        out.writeUTF(String.valueOf(i));
                        out.writeUTF(SEPARATOR_KEY);
                    }
                }
                if (mDeletedEphemeralSSIDs != null && mDeletedEphemeralSSIDs.size() > 0) {
                    for (String ssid : mDeletedEphemeralSSIDs) {
                        out.writeUTF(DELETED_EPHEMERAL_KEY);
                        out.writeUTF(ssid);
                        out.writeUTF(SEPARATOR_KEY);
                    }
                }
            }
        });