/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.wifi;
import android.net.NetworkInfo;
import android.net.wifi.SupplicantState;
import android.net.wifi.WifiEnterpriseConfig;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiSsid;
import android.net.wifi.p2p.WifiP2pConfig;
import android.net.wifi.p2p.WifiP2pDevice;
import android.net.wifi.p2p.WifiP2pGroup;
import android.net.wifi.p2p.WifiP2pProvDiscEvent;
import android.net.wifi.p2p.nsd.WifiP2pServiceResponse;
import android.os.Message;
import android.text.TextUtils;
import android.util.LocalLog;
import android.util.Log;
import com.android.server.wifi.hotspot2.Utils;
import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus;
import com.android.internal.util.Protocol;
import com.android.internal.util.StateMachine;
import java.util.HashMap;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Listens for events from the wpa_supplicant server, and passes them on
* to the {@link StateMachine} for handling. Runs in its own thread.
*
* @hide
*/
public class WifiMonitor {
private static boolean DBG = false;
private static final boolean VDBG = false;
private static final String TAG = "WifiMonitor";
/** Events we receive from the supplicant daemon */
private static final int CONNECTED = 1;
private static final int DISCONNECTED = 2;
private static final int STATE_CHANGE = 3;
private static final int SCAN_RESULTS = 4;
private static final int LINK_SPEED = 5;
private static final int TERMINATING = 6;
private static final int DRIVER_STATE = 7;
private static final int EAP_FAILURE = 8;
private static final int ASSOC_REJECT = 9;
private static final int SSID_TEMP_DISABLE = 10;
private static final int SSID_REENABLE = 11;
private static final int BSS_ADDED = 12;
private static final int BSS_REMOVED = 13;
private static final int UNKNOWN = 14;
private static final int SCAN_FAILED = 15;
/** All events coming from the supplicant start with this prefix */
private static final String EVENT_PREFIX_STR = "CTRL-EVENT-";
private static final int EVENT_PREFIX_LEN_STR = EVENT_PREFIX_STR.length();
/** All events coming from the supplicant start with this prefix */
private static final String REQUEST_PREFIX_STR = "CTRL-REQ-";
private static final int REQUEST_PREFIX_LEN_STR = REQUEST_PREFIX_STR.length();
/** All WPA events coming from the supplicant start with this prefix */
private static final String WPA_EVENT_PREFIX_STR = "WPA:";
private static final String PASSWORD_MAY_BE_INCORRECT_STR =
"pre-shared key may be incorrect";
/* WPS events */
private static final String WPS_SUCCESS_STR = "WPS-SUCCESS";
/* Format: WPS-FAIL msg=%d [config_error=%d] [reason=%d (%s)] */
private static final String WPS_FAIL_STR = "WPS-FAIL";
private static final String WPS_FAIL_PATTERN =
"WPS-FAIL msg=\\d+(?: config_error=(\\d+))?(?: reason=(\\d+))?";
/* config error code values for config_error=%d */
private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12;
private static final int CONFIG_AUTH_FAILURE = 18;
/* reason code values for reason=%d */
private static final int REASON_TKIP_ONLY_PROHIBITED = 1;
private static final int REASON_WEP_PROHIBITED = 2;
private static final String WPS_OVERLAP_STR = "WPS-OVERLAP-DETECTED";
private static final String WPS_TIMEOUT_STR = "WPS-TIMEOUT";
/* Hotspot 2.0 ANQP query events */
private static final String GAS_QUERY_PREFIX_STR = "GAS-QUERY-";
private static final String GAS_QUERY_START_STR = "GAS-QUERY-START";
private static final String GAS_QUERY_DONE_STR = "GAS-QUERY-DONE";
private static final String RX_HS20_ANQP_ICON_STR = "RX-HS20-ANQP-ICON";
private static final int RX_HS20_ANQP_ICON_STR_LEN = RX_HS20_ANQP_ICON_STR.length();
/* Hotspot 2.0 events */
private static final String HS20_PREFIX_STR = "HS20-";
private static final String HS20_SUB_REM_STR = "HS20-SUBSCRIPTION-REMEDIATION";
private static final String HS20_DEAUTH_STR = "HS20-DEAUTH-IMMINENT-NOTICE";
private static final String IDENTITY_STR = "IDENTITY";
private static final String SIM_STR = "SIM";
//used to debug and detect if we miss an event
private static int eventLogCounter = 0;
/**
* Names of events from wpa_supplicant (minus the prefix). In the
* format descriptions, * "<code>x</code>"
* designates a dynamic value that needs to be parsed out from the event
* string
*/
/**
* <pre>
* CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed
* </pre>
* <code>xx:xx:xx:xx:xx:xx</code> is the BSSID of the associated access point
*/
private static final String CONNECTED_STR = "CONNECTED";
/**
* <pre>
* CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
* </pre>
*/
private static final String DISCONNECTED_STR = "DISCONNECTED";
/**
* <pre>
* CTRL-EVENT-STATE-CHANGE x
* </pre>
* <code>x</code> is the numerical value of the new state.
*/
private static final String STATE_CHANGE_STR = "STATE-CHANGE";
/**
* <pre>
* CTRL-EVENT-SCAN-RESULTS ready
* </pre>
*/
private static final String SCAN_RESULTS_STR = "SCAN-RESULTS";
/**
* <pre>
* CTRL-EVENT-SCAN-FAILED ret=code[ retry=1]
* </pre>
*/
private static final String SCAN_FAILED_STR = "SCAN-FAILED";
/**
* <pre>
* CTRL-EVENT-LINK-SPEED x Mb/s
* </pre>
* {@code x} is the link speed in Mb/sec.
*/
private static final String LINK_SPEED_STR = "LINK-SPEED";
/**
* <pre>
* CTRL-EVENT-TERMINATING - signal x
* </pre>
* <code>x</code> is the signal that caused termination.
*/
private static final String TERMINATING_STR = "TERMINATING";
/**
* <pre>
* CTRL-EVENT-DRIVER-STATE state
* </pre>
* <code>state</code> can be HANGED
*/
private static final String DRIVER_STATE_STR = "DRIVER-STATE";
/**
* <pre>
* CTRL-EVENT-EAP-FAILURE EAP authentication failed
* </pre>
*/
private static final String EAP_FAILURE_STR = "EAP-FAILURE";
/**
* This indicates an authentication failure on EAP FAILURE event
*/
private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed";
/* EAP authentication timeout events */
private static final String AUTH_EVENT_PREFIX_STR = "Authentication with";
private static final String AUTH_TIMEOUT_STR = "timed out.";
/**
* This indicates an assoc reject event
*/
private static final String ASSOC_REJECT_STR = "ASSOC-REJECT";
/**
* This indicates auth or association failure bad enough so as network got disabled
* - WPA_PSK auth failure suspecting shared key mismatch
* - failed multiple Associations
*/
private static final String TEMP_DISABLED_STR = "SSID-TEMP-DISABLED";
/**
* This indicates a previously disabled SSID was reenabled by supplicant
*/
private static final String REENABLED_STR = "SSID-REENABLED";
/**
* This indicates supplicant found a given BSS
*/
private static final String BSS_ADDED_STR = "BSS-ADDED";
/**
* This indicates supplicant removed a given BSS
*/
private static final String BSS_REMOVED_STR = "BSS-REMOVED";
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:<pre>
* CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre>
*/
private static Pattern mConnectedEventPattern =
Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) ");
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:<pre>
* CTRL-EVENT-DISCONNECTED - bssid=ac:22:0b:24:70:74 reason=3 locally_generated=1
*/
private static Pattern mDisconnectedEventPattern =
Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" +
"reason=([0-9]+) +locally_generated=([0-1])");
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:<pre>
* CTRL-EVENT-ASSOC-REJECT - bssid=ac:22:0b:24:70:74 status_code=1
*/
private static Pattern mAssocRejectEventPattern =
Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" +
"status_code=([0-9]+)");
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:<pre>
* IFNAME=wlan0 Trying to associate with 6c:f3:7f:ae:87:71
*/
private static final String TARGET_BSSID_STR = "Trying to associate with ";
private static Pattern mTargetBSSIDPattern =
Pattern.compile("Trying to associate with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*");
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:<pre>
* IFNAME=wlan0 Associated with 6c:f3:7f:ae:87:71
*/
private static final String ASSOCIATED_WITH_STR = "Associated with ";
private static Pattern mAssociatedPattern =
Pattern.compile("Associated with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*");
/**
* Regex pattern for extracting an external GSM sim authentication request from a string.
* Matches a strings like the following:<pre>
* CTRL-REQ-SIM-<network id>:GSM-AUTH:<RAND1>:<RAND2>[:<RAND3>] needed for SSID <SSID>
* This pattern should find
* 0 - id
* 1 - Rand1
* 2 - Rand2
* 3 - Rand3
* 4 - SSID
*/
private static Pattern mRequestGsmAuthPattern =
Pattern.compile("SIM-([0-9]*):GSM-AUTH((:[0-9a-f]+)+) needed for SSID (.+)");
/**
* Regex pattern for extracting an external 3G sim authentication request from a string.
* Matches a strings like the following:<pre>
* CTRL-REQ-SIM-<network id>:UMTS-AUTH:<RAND>:<AUTN> needed for SSID <SSID>
* This pattern should find
* 1 - id
* 2 - Rand
* 3 - Autn
* 4 - SSID
*/
private static Pattern mRequestUmtsAuthPattern =
Pattern.compile("SIM-([0-9]*):UMTS-AUTH:([0-9a-f]+):([0-9a-f]+) needed for SSID (.+)");
/**
* Regex pattern for extracting SSIDs from request identity string.
* Matches a strings like the following:<pre>
* CTRL-REQ-IDENTITY-xx:Identity needed for SSID XXXX</pre>
*/
private static Pattern mRequestIdentityPattern =
Pattern.compile("IDENTITY-([0-9]+):Identity needed for SSID (.+)");
/** P2P events */
private static final String P2P_EVENT_PREFIX_STR = "P2P";
/* P2P-DEVICE-FOUND fa:7b:7a:42:02:13 p2p_dev_addr=fa:7b:7a:42:02:13 pri_dev_type=1-0050F204-1
name='p2p-TEST1' config_methods=0x188 dev_capab=0x27 group_capab=0x0 */
private static final String P2P_DEVICE_FOUND_STR = "P2P-DEVICE-FOUND";
/* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */
private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST";
/* P2P-FIND-STOPPED */
private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED";
/* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */
private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST";
private static final String P2P_GO_NEG_SUCCESS_STR = "P2P-GO-NEG-SUCCESS";
/* P2P-GO-NEG-FAILURE status=x */
private static final String P2P_GO_NEG_FAILURE_STR = "P2P-GO-NEG-FAILURE";
private static final String P2P_GROUP_FORMATION_SUCCESS_STR =
"P2P-GROUP-FORMATION-SUCCESS";
private static final String P2P_GROUP_FORMATION_FAILURE_STR =
"P2P-GROUP-FORMATION-FAILURE";
/* P2P-GROUP-STARTED p2p-wlan0-0 [client|GO] ssid="DIRECT-W8" freq=2437
[psk=2182b2e50e53f260d04f3c7b25ef33c965a3291b9b36b455a82d77fd82ca15bc|passphrase="fKG4jMe3"]
go_dev_addr=fa:7b:7a:42:02:13 [PERSISTENT] */
private static final String P2P_GROUP_STARTED_STR = "P2P-GROUP-STARTED";
/* P2P-GROUP-REMOVED p2p-wlan0-0 [client|GO] reason=REQUESTED */
private static final String P2P_GROUP_REMOVED_STR = "P2P-GROUP-REMOVED";
/* P2P-INVITATION-RECEIVED sa=fa:7b:7a:42:02:13 go_dev_addr=f8:7b:7a:42:02:13
bssid=fa:7b:7a:42:82:13 unknown-network */
private static final String P2P_INVITATION_RECEIVED_STR = "P2P-INVITATION-RECEIVED";
/* P2P-INVITATION-RESULT status=1 */
private static final String P2P_INVITATION_RESULT_STR = "P2P-INVITATION-RESULT";
/* P2P-PROV-DISC-PBC-REQ 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27
pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27
group_capab=0x0 */
private static final String P2P_PROV_DISC_PBC_REQ_STR = "P2P-PROV-DISC-PBC-REQ";
/* P2P-PROV-DISC-PBC-RESP 02:12:47:f2:5a:36 */
private static final String P2P_PROV_DISC_PBC_RSP_STR = "P2P-PROV-DISC-PBC-RESP";
/* P2P-PROV-DISC-ENTER-PIN 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27
pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27
group_capab=0x0 */
private static final String P2P_PROV_DISC_ENTER_PIN_STR = "P2P-PROV-DISC-ENTER-PIN";
/* P2P-PROV-DISC-SHOW-PIN 42:fc:89:e1:e2:27 44490607 p2p_dev_addr=42:fc:89:e1:e2:27
pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27
group_capab=0x0 */
private static final String P2P_PROV_DISC_SHOW_PIN_STR = "P2P-PROV-DISC-SHOW-PIN";
/* P2P-PROV-DISC-FAILURE p2p_dev_addr=42:fc:89:e1:e2:27 */
private static final String P2P_PROV_DISC_FAILURE_STR = "P2P-PROV-DISC-FAILURE";
/*
* Protocol format is as follows.<br>
* See the Table.62 in the WiFi Direct specification for the detail.
* ______________________________________________________________
* | Length(2byte) | Type(1byte) | TransId(1byte)}|
* ______________________________________________________________
* | status(1byte) | vendor specific(variable) |
*
* P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300000101
* length=3, service type=0(ALL Service), transaction id=1,
* status=1(service protocol type not available)<br>
*
* P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300020201
* length=3, service type=2(UPnP), transaction id=2,
* status=1(service protocol type not available)
*
* P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 990002030010757569643a3131323
* 2646534652d383537342d353961622d393332322d3333333435363738393034343a3
* a75726e3a736368656d61732d75706e702d6f72673a736572766963653a436f6e746
* 56e744469726563746f72793a322c757569643a36383539646564652d383537342d3
* 53961622d393333322d3132333435363738393031323a3a75706e703a726f6f74646
* 576696365
* length=153,type=2(UPnP),transaction id=3,status=0
*
* UPnP Protocol format is as follows.
* ______________________________________________________
* | Version (1) | USN (Variable) |
*
* version=0x10(UPnP1.0) data=usn:uuid:1122de4e-8574-59ab-9322-33345678
* 9044::urn:schemas-upnp-org:service:ContentDirectory:2,usn:uuid:6859d
* ede-8574-59ab-9332-123456789012::upnp:rootdevice
*
* P2P-SERV-DISC-RESP 58:17:0c:bc:dd:ca 21 1900010200045f6970
* 70c00c000c01094d795072696e746572c027
* length=25, type=1(Bonjour),transaction id=2,status=0
*
* Bonjour Protocol format is as follows.
* __________________________________________________________
* |DNS Name(Variable)|DNS Type(1)|Version(1)|RDATA(Variable)|
*
* DNS Name=_ipp._tcp.local.,DNS type=12(PTR), Version=1,
* RDATA=MyPrinter._ipp._tcp.local.
*
*/
private static final String P2P_SERV_DISC_RESP_STR = "P2P-SERV-DISC-RESP";
private static final String HOST_AP_EVENT_PREFIX_STR = "AP";
/* AP-STA-CONNECTED 42:fc:89:a8:96:09 dev_addr=02:90:4c:a0:92:54 */
private static final String AP_STA_CONNECTED_STR = "AP-STA-CONNECTED";
/* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 */
private static final String AP_STA_DISCONNECTED_STR = "AP-STA-DISCONNECTED";
private static final String ANQP_DONE_STR = "ANQP-QUERY-DONE";
/* Supplicant events reported to a state machine */
private static final int BASE = Protocol.BASE_WIFI_MONITOR;
/* Connection to supplicant established */
public static final int SUP_CONNECTION_EVENT = BASE + 1;
/* Connection to supplicant lost */
public static final int SUP_DISCONNECTION_EVENT = BASE + 2;
/* Network connection completed */
public static final int NETWORK_CONNECTION_EVENT = BASE + 3;
/* Network disconnection completed */
public static final int NETWORK_DISCONNECTION_EVENT = BASE + 4;
/* Scan results are available */
public static final int SCAN_RESULTS_EVENT = BASE + 5;
/* Supplicate state changed */
public static final int SUPPLICANT_STATE_CHANGE_EVENT = BASE + 6;
/* Password failure and EAP authentication failure */
public static final int AUTHENTICATION_FAILURE_EVENT = BASE + 7;
/* WPS success detected */
public static final int WPS_SUCCESS_EVENT = BASE + 8;
/* WPS failure detected */
public static final int WPS_FAIL_EVENT = BASE + 9;
/* WPS overlap detected */
public static final int WPS_OVERLAP_EVENT = BASE + 10;
/* WPS timeout detected */
public static final int WPS_TIMEOUT_EVENT = BASE + 11;
/* Driver was hung */
public static final int DRIVER_HUNG_EVENT = BASE + 12;
/* SSID was disabled due to auth failure or excessive
* connection failures */
public static final int SSID_TEMP_DISABLED = BASE + 13;
/* SSID reenabled by supplicant */
public static final int SSID_REENABLED = BASE + 14;
/* Request Identity */
public static final int SUP_REQUEST_IDENTITY = BASE + 15;
/* Request SIM Auth */
public static final int SUP_REQUEST_SIM_AUTH = BASE + 16;
public static final int SCAN_FAILED_EVENT = BASE + 17;
/* P2P events */
public static final int P2P_DEVICE_FOUND_EVENT = BASE + 21;
public static final int P2P_DEVICE_LOST_EVENT = BASE + 22;
public static final int P2P_GO_NEGOTIATION_REQUEST_EVENT = BASE + 23;
public static final int P2P_GO_NEGOTIATION_SUCCESS_EVENT = BASE + 25;
public static final int P2P_GO_NEGOTIATION_FAILURE_EVENT = BASE + 26;
public static final int P2P_GROUP_FORMATION_SUCCESS_EVENT = BASE + 27;
public static final int P2P_GROUP_FORMATION_FAILURE_EVENT = BASE + 28;
public static final int P2P_GROUP_STARTED_EVENT = BASE + 29;
public static final int P2P_GROUP_REMOVED_EVENT = BASE + 30;
public static final int P2P_INVITATION_RECEIVED_EVENT = BASE + 31;
public static final int P2P_INVITATION_RESULT_EVENT = BASE + 32;
public static final int P2P_PROV_DISC_PBC_REQ_EVENT = BASE + 33;
public static final int P2P_PROV_DISC_PBC_RSP_EVENT = BASE + 34;
public static final int P2P_PROV_DISC_ENTER_PIN_EVENT = BASE + 35;
public static final int P2P_PROV_DISC_SHOW_PIN_EVENT = BASE + 36;
public static final int P2P_FIND_STOPPED_EVENT = BASE + 37;
public static final int P2P_SERV_DISC_RESP_EVENT = BASE + 38;
public static final int P2P_PROV_DISC_FAILURE_EVENT = BASE + 39;
/* hostap events */
public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41;
public static final int AP_STA_CONNECTED_EVENT = BASE + 42;
/* Indicates assoc reject event */
public static final int ASSOCIATION_REJECTION_EVENT = BASE + 43;
public static final int ANQP_DONE_EVENT = BASE + 44;
/* hotspot 2.0 ANQP events */
public static final int GAS_QUERY_START_EVENT = BASE + 51;
public static final int GAS_QUERY_DONE_EVENT = BASE + 52;
public static final int RX_HS20_ANQP_ICON_EVENT = BASE + 53;
/* hotspot 2.0 events */
public static final int HS20_REMEDIATION_EVENT = BASE + 61;
public static final int HS20_DEAUTH_EVENT = BASE + 62;
/**
* This indicates a read error on the monitor socket conenction
*/
private static final String WPA_RECV_ERROR_STR = "recv error";
/**
* Max errors before we close supplicant connection
*/
private static final int MAX_RECV_ERRORS = 10;
private final String mInterfaceName;
private final WifiNative mWifiNative;
private final StateMachine mStateMachine;
private StateMachine mStateMachine2;
private boolean mMonitoring;
// This is a global counter, since it's not monitor specific. However, the existing
// implementation forwards all "global" control events like CTRL-EVENT-TERMINATING
// to the p2p0 monitor. Is that expected ? It seems a bit surprising.
//
// TODO: If the p2p0 monitor isn't registered, the behaviour is even more surprising.
// The event will be dispatched to all monitors, and each of them will end up incrementing
// it in their dispatchXXX method. If we have 5 registered monitors (say), 2 consecutive
// recv errors will cause us to disconnect from the supplicant (instead of the intended 10).
//
// This variable is always accessed and modified under a WifiMonitorSingleton lock.
private static int sRecvErrors;
public WifiMonitor(StateMachine stateMachine, WifiNative wifiNative) {
if (DBG) Log.d(TAG, "Creating WifiMonitor");
mWifiNative = wifiNative;
mInterfaceName = wifiNative.mInterfaceName;
mStateMachine = stateMachine;
mStateMachine2 = null;
mMonitoring = false;
WifiMonitorSingleton.sInstance.registerInterfaceMonitor(mInterfaceName, this);
}
void enableVerboseLogging(int verbose) {
if (verbose > 0) {
DBG = true;
} else {
DBG = false;
}
}
// TODO: temporary hack, should be handle by supplicant manager (new component in future)
public void setStateMachine2(StateMachine stateMachine) {
mStateMachine2 = stateMachine;
}
public void startMonitoring() {
WifiMonitorSingleton.sInstance.startMonitoring(mInterfaceName);
}
public void stopMonitoring() {
WifiMonitorSingleton.sInstance.stopMonitoring(mInterfaceName);
}
public void stopSupplicant() {
WifiMonitorSingleton.sInstance.stopSupplicant();
}
public void killSupplicant(boolean p2pSupported) {
WifiMonitorSingleton.sInstance.killSupplicant(p2pSupported);
}
private static class WifiMonitorSingleton {
private static final WifiMonitorSingleton sInstance = new WifiMonitorSingleton();
private final HashMap<String, WifiMonitor> mIfaceMap = new HashMap<String, WifiMonitor>();
private boolean mConnected = false;
private WifiNative mWifiNative;
private WifiMonitorSingleton() {
}
public synchronized void startMonitoring(String iface) {
WifiMonitor m = mIfaceMap.get(iface);
if (m == null) {
Log.e(TAG, "startMonitor called with unknown iface=" + iface);
return;
}
Log.d(TAG, "startMonitoring(" + iface + ") with mConnected = " + mConnected);
if (mConnected) {
m.mMonitoring = true;
m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT);
} else {
if (DBG) Log.d(TAG, "connecting to supplicant");
int connectTries = 0;
while (true) {
if (mWifiNative.connectToSupplicant()) {
m.mMonitoring = true;
m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT);
mConnected = true;
new MonitorThread(mWifiNative, this).start();
break;
}
if (connectTries++ < 5) {
try {
Thread.sleep(1000);
} catch (InterruptedException ignore) {
}
} else {
m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT);
Log.e(TAG, "startMonitoring(" + iface + ") failed!");
break;
}
}
}
}
public synchronized void stopMonitoring(String iface) {
WifiMonitor m = mIfaceMap.get(iface);
if (DBG) Log.d(TAG, "stopMonitoring(" + iface + ") = " + m.mStateMachine);
m.mMonitoring = false;
m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT);
}
public synchronized void registerInterfaceMonitor(String iface, WifiMonitor m) {
if (DBG) Log.d(TAG, "registerInterface(" + iface + "+" + m.mStateMachine + ")");
mIfaceMap.put(iface, m);
if (mWifiNative == null) {
mWifiNative = m.mWifiNative;
}
}
public synchronized void unregisterInterfaceMonitor(String iface) {
// REVIEW: When should we call this? If this isn't called, then WifiMonitor
// objects will remain in the mIfaceMap; and won't ever get deleted
WifiMonitor m = mIfaceMap.remove(iface);
if (DBG) Log.d(TAG, "unregisterInterface(" + iface + "+" + m.mStateMachine + ")");
}
public synchronized void stopSupplicant() {
mWifiNative.stopSupplicant();
}
public synchronized void killSupplicant(boolean p2pSupported) {
String suppState = System.getProperty("init.svc.wpa_supplicant");
if (suppState == null) suppState = "unknown";
String p2pSuppState = System.getProperty("init.svc.p2p_supplicant");
if (p2pSuppState == null) p2pSuppState = "unknown";
Log.e(TAG, "killSupplicant p2p" + p2pSupported
+ " init.svc.wpa_supplicant=" + suppState
+ " init.svc.p2p_supplicant=" + p2pSuppState);
WifiNative.killSupplicant(p2pSupported);
mConnected = false;
for (WifiMonitor m : mIfaceMap.values()) {
m.mMonitoring = false;
}
}
private synchronized boolean dispatchEvent(String eventStr) {
String iface;
// IFNAME=wlan0 ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS
if (eventStr.startsWith("IFNAME=")) {
int space = eventStr.indexOf(' ');
if (space != -1) {
iface = eventStr.substring(7, space);
if (!mIfaceMap.containsKey(iface) && iface.startsWith("p2p-")) {
// p2p interfaces are created dynamically, but we have
// only one P2p state machine monitoring all of them; look
// for it explicitly, and send messages there ..
iface = "p2p0";
}
eventStr = eventStr.substring(space + 1);
} else {
// No point dispatching this event to any interface, the dispatched
// event string will begin with "IFNAME=" which dispatchEvent can't really
// do anything about.
Log.e(TAG, "Dropping malformed event (unparsable iface): " + eventStr);
return false;
}
} else {
// events without prefix belong to p2p0 monitor
iface = "p2p0";
}
if (VDBG) Log.d(TAG, "Dispatching event to interface: " + iface);
WifiMonitor m = mIfaceMap.get(iface);
if (m != null) {
if (m.mMonitoring) {
if (m.dispatchEvent(eventStr, iface)) {
mConnected = false;
return true;
}
return false;
} else {
if (DBG) Log.d(TAG, "Dropping event because (" + iface + ") is stopped");
return false;
}
} else {
if (DBG) Log.d(TAG, "Sending to all monitors because there's no matching iface");
boolean done = false;
boolean isMonitoring = false;
boolean isTerminating = false;
if (eventStr.startsWith(EVENT_PREFIX_STR)
&& eventStr.contains(TERMINATING_STR)) {
isTerminating = true;
}
for (WifiMonitor monitor : mIfaceMap.values()) {
if (monitor.mMonitoring) {
isMonitoring = true;
if (monitor.dispatchEvent(eventStr, iface)) {
done = true;
}
}
}
if (!isMonitoring && isTerminating) {
done = true;
}
if (done) {
mConnected = false;
}
return done;
}
}
}
private static class MonitorThread extends Thread {
private final WifiNative mWifiNative;
private final WifiMonitorSingleton mWifiMonitorSingleton;
private final LocalLog mLocalLog = WifiNative.getLocalLog();
public MonitorThread(WifiNative wifiNative, WifiMonitorSingleton wifiMonitorSingleton) {
super("WifiMonitor");
mWifiNative = wifiNative;
mWifiMonitorSingleton = wifiMonitorSingleton;
}
public void run() {
if (DBG) {
Log.d(TAG, "MonitorThread start with mConnected=" +
mWifiMonitorSingleton.mConnected);
}
//noinspection InfiniteLoopStatement
for (;;) {
if (!mWifiMonitorSingleton.mConnected) {
if (DBG) Log.d(TAG, "MonitorThread exit because mConnected is false");
break;
}
String eventStr = mWifiNative.waitForEvent();
// Skip logging the common but mostly uninteresting events
if (eventStr.indexOf(BSS_ADDED_STR) == -1
&& eventStr.indexOf(BSS_REMOVED_STR) == -1) {
if (DBG) Log.d(TAG, "Event [" + eventStr + "]");
mLocalLog.log("Event [" + eventStr + "]");
}
if (mWifiMonitorSingleton.dispatchEvent(eventStr)) {
if (DBG) Log.d(TAG, "Disconnecting from the supplicant, no more events");
break;
}
}
}
}
private void logDbg(String debug) {
Log.e(TAG, debug/*+ " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName()
+" - "+ Thread.currentThread().getStackTrace()[3].getMethodName()
+" - "+ Thread.currentThread().getStackTrace()[4].getMethodName()
+" - "+ Thread.currentThread().getStackTrace()[5].getMethodName()*/);
}
/* @return true if the event was supplicant disconnection */
private boolean dispatchEvent(String eventStr, String iface) {
if (DBG) {
// Dont log CTRL-EVENT-BSS-ADDED which are too verbose and not handled
if (eventStr != null && !eventStr.contains("CTRL-EVENT-BSS-ADDED")) {
logDbg("WifiMonitor:" + iface + " cnt=" + Integer.toString(eventLogCounter)
+ " dispatchEvent: " + eventStr);
}
}
if (!eventStr.startsWith(EVENT_PREFIX_STR)) {
if (eventStr.startsWith(WPA_EVENT_PREFIX_STR) &&
0 < eventStr.indexOf(PASSWORD_MAY_BE_INCORRECT_STR)) {
mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter);
} else if (eventStr.startsWith(WPS_SUCCESS_STR)) {
mStateMachine.sendMessage(WPS_SUCCESS_EVENT);
} else if (eventStr.startsWith(WPS_FAIL_STR)) {
handleWpsFailEvent(eventStr);
} else if (eventStr.startsWith(WPS_OVERLAP_STR)) {
mStateMachine.sendMessage(WPS_OVERLAP_EVENT);
} else if (eventStr.startsWith(WPS_TIMEOUT_STR)) {
mStateMachine.sendMessage(WPS_TIMEOUT_EVENT);
} else if (eventStr.startsWith(P2P_EVENT_PREFIX_STR)) {
handleP2pEvents(eventStr);
} else if (eventStr.startsWith(HOST_AP_EVENT_PREFIX_STR)) {
handleHostApEvents(eventStr);
} else if (eventStr.startsWith(ANQP_DONE_STR)) {
try {
handleAnqpResult(eventStr);
}
catch (IllegalArgumentException iae) {
Log.e(TAG, "Bad ANQP event string: '" + eventStr + "': " + iae);
}
} else if (eventStr.startsWith(GAS_QUERY_PREFIX_STR)) { // !!! clean >>End
handleGasQueryEvents(eventStr);
} else if (eventStr.startsWith(RX_HS20_ANQP_ICON_STR)) {
if (mStateMachine2 != null)
mStateMachine2.sendMessage(RX_HS20_ANQP_ICON_EVENT,
eventStr.substring(RX_HS20_ANQP_ICON_STR_LEN + 1));
} else if (eventStr.startsWith(HS20_PREFIX_STR)) { // !!! <<End
handleHs20Events(eventStr);
} else if (eventStr.startsWith(REQUEST_PREFIX_STR)) {
handleRequests(eventStr);
} else if (eventStr.startsWith(TARGET_BSSID_STR)) {
handleTargetBSSIDEvent(eventStr);
} else if (eventStr.startsWith(ASSOCIATED_WITH_STR)) {
handleAssociatedBSSIDEvent(eventStr);
} else if (eventStr.startsWith(AUTH_EVENT_PREFIX_STR) &&
eventStr.endsWith(AUTH_TIMEOUT_STR)) {
mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT);
} else {
if (DBG) Log.w(TAG, "couldn't identify event type - " + eventStr);
}
eventLogCounter++;
return false;
}
String eventName = eventStr.substring(EVENT_PREFIX_LEN_STR);
int nameEnd = eventName.indexOf(' ');
if (nameEnd != -1)
eventName = eventName.substring(0, nameEnd);
if (eventName.length() == 0) {
if (DBG) Log.i(TAG, "Received wpa_supplicant event with empty event name");
eventLogCounter++;
return false;
}
/*
* Map event name into event enum
*/
int event;
if (eventName.equals(CONNECTED_STR))
event = CONNECTED;
else if (eventName.equals(DISCONNECTED_STR))
event = DISCONNECTED;
else if (eventName.equals(STATE_CHANGE_STR))
event = STATE_CHANGE;
else if (eventName.equals(SCAN_RESULTS_STR))
event = SCAN_RESULTS;
else if (eventName.equals(SCAN_FAILED_STR))
event = SCAN_FAILED;
else if (eventName.equals(LINK_SPEED_STR))
event = LINK_SPEED;
else if (eventName.equals(TERMINATING_STR))
event = TERMINATING;
else if (eventName.equals(DRIVER_STATE_STR))
event = DRIVER_STATE;
else if (eventName.equals(EAP_FAILURE_STR))
event = EAP_FAILURE;
else if (eventName.equals(ASSOC_REJECT_STR))
event = ASSOC_REJECT;
else if (eventName.equals(TEMP_DISABLED_STR)) {
event = SSID_TEMP_DISABLE;
} else if (eventName.equals(REENABLED_STR)) {
event = SSID_REENABLE;
} else if (eventName.equals(BSS_ADDED_STR)) {
event = BSS_ADDED;
} else if (eventName.equals(BSS_REMOVED_STR)) {
event = BSS_REMOVED;
} else
event = UNKNOWN;
String eventData = eventStr;
if (event == DRIVER_STATE || event == LINK_SPEED)
eventData = eventData.split(" ")[1];
else if (event == STATE_CHANGE || event == EAP_FAILURE) {
int ind = eventStr.indexOf(" ");
if (ind != -1) {
eventData = eventStr.substring(ind + 1);
}
} else {
int ind = eventStr.indexOf(" - ");
if (ind != -1) {
eventData = eventStr.substring(ind + 3);
}
}
if ((event == SSID_TEMP_DISABLE)||(event == SSID_REENABLE)) {
String substr = null;
int netId = -1;
int ind = eventStr.indexOf(" ");
if (ind != -1) {
substr = eventStr.substring(ind + 1);
}
if (substr != null) {
String status[] = substr.split(" ");
for (String key : status) {
if (key.regionMatches(0, "id=", 0, 3)) {
int idx = 3;
netId = 0;
while (idx < key.length()) {
char c = key.charAt(idx);
if ((c >= 0x30) && (c <= 0x39)) {
netId *= 10;
netId += c - 0x30;
idx++;
} else {
break;
}
}
}
}
}
mStateMachine.sendMessage((event == SSID_TEMP_DISABLE)?
SSID_TEMP_DISABLED:SSID_REENABLED, netId, 0, substr);
} else if (event == STATE_CHANGE) {
handleSupplicantStateChange(eventData);
} else if (event == DRIVER_STATE) {
handleDriverEvent(eventData);
} else if (event == TERMINATING) {
/**
* Close the supplicant connection if we see
* too many recv errors
*/
if (eventData.startsWith(WPA_RECV_ERROR_STR)) {
if (++sRecvErrors > MAX_RECV_ERRORS) {
if (DBG) {
Log.d(TAG, "too many recv errors, closing connection");
}
} else {
eventLogCounter++;
return false;
}
}
// Notify and exit
mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT, eventLogCounter);
return true;
} else if (event == EAP_FAILURE) {
if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) {
logDbg("WifiMonitor send auth failure (EAP_AUTH_FAILURE) ");
mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter);
}
} else if (event == ASSOC_REJECT) {
Matcher match = mAssocRejectEventPattern.matcher(eventData);
String BSSID = "";
int status = -1;
if (!match.find()) {
if (DBG) Log.d(TAG, "Assoc Reject: Could not parse assoc reject string");
} else {
BSSID = match.group(1);
try {
status = Integer.parseInt(match.group(2));
} catch (NumberFormatException e) {
status = -1;
}
}
mStateMachine.sendMessage(ASSOCIATION_REJECTION_EVENT, eventLogCounter, status, BSSID);
} else if (event == BSS_ADDED && !VDBG) {
// Ignore that event - it is not handled, and dont log it as it is too verbose
} else if (event == BSS_REMOVED && !VDBG) {
// Ignore that event - it is not handled, and dont log it as it is too verbose
} else {
handleEvent(event, eventData);
}
sRecvErrors = 0;
eventLogCounter++;
return false;
}
private void handleDriverEvent(String state) {
if (state == null) {
return;
}
if (state.equals("HANGED")) {
mStateMachine.sendMessage(DRIVER_HUNG_EVENT);
}
}
/**
* Handle all supplicant events except STATE-CHANGE
* @param event the event type
* @param remainder the rest of the string following the
* event name and " — "
*/
void handleEvent(int event, String remainder) {
if (DBG) {
logDbg("handleEvent " + Integer.toString(event) + " " + remainder);
}
switch (event) {
case DISCONNECTED:
handleNetworkStateChange(NetworkInfo.DetailedState.DISCONNECTED, remainder);
break;
case CONNECTED:
handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED, remainder);
break;
case SCAN_RESULTS:
mStateMachine.sendMessage(SCAN_RESULTS_EVENT);
break;
case SCAN_FAILED:
mStateMachine.sendMessage(SCAN_FAILED_EVENT);
break;
case UNKNOWN:
if (DBG) {
logDbg("handleEvent unknown: " + Integer.toString(event) + " " + remainder);
}
break;
default:
break;
}
}
private void handleTargetBSSIDEvent(String eventStr) {
String BSSID = null;
Matcher match = mTargetBSSIDPattern.matcher(eventStr);
if (match.find()) {
BSSID = match.group(1);
}
mStateMachine.sendMessage(WifiStateMachine.CMD_TARGET_BSSID, eventLogCounter, 0, BSSID);
}
private void handleAssociatedBSSIDEvent(String eventStr) {
String BSSID = null;
Matcher match = mAssociatedPattern.matcher(eventStr);
if (match.find()) {
BSSID = match.group(1);
}
mStateMachine.sendMessage(WifiStateMachine.CMD_ASSOCIATED_BSSID, eventLogCounter, 0, BSSID);
}
private void handleWpsFailEvent(String dataString) {
final Pattern p = Pattern.compile(WPS_FAIL_PATTERN);
Matcher match = p.matcher(dataString);
int reason = 0;
if (match.find()) {
String cfgErrStr = match.group(1);
String reasonStr = match.group(2);
if (reasonStr != null) {
int reasonInt = Integer.parseInt(reasonStr);
switch(reasonInt) {
case REASON_TKIP_ONLY_PROHIBITED:
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.WPS_TKIP_ONLY_PROHIBITED, 0));
return;
case REASON_WEP_PROHIBITED:
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.WPS_WEP_PROHIBITED, 0));
return;
default:
reason = reasonInt;
break;
}
}
if (cfgErrStr != null) {
int cfgErrInt = Integer.parseInt(cfgErrStr);
switch(cfgErrInt) {
case CONFIG_AUTH_FAILURE:
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.WPS_AUTH_FAILURE, 0));
return;
case CONFIG_MULTIPLE_PBC_DETECTED:
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.WPS_OVERLAP_ERROR, 0));
return;
default:
if (reason == 0) reason = cfgErrInt;
break;
}
}
}
//For all other errors, return a generic internal error
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.ERROR, reason));
}
/* <event> status=<err> and the special case of <event> reason=FREQ_CONFLICT */
private P2pStatus p2pError(String dataString) {
P2pStatus err = P2pStatus.UNKNOWN;
String[] tokens = dataString.split(" ");
if (tokens.length < 2) return err;
String[] nameValue = tokens[1].split("=");
if (nameValue.length != 2) return err;
/* Handle the special case of reason=FREQ+CONFLICT */
if (nameValue[1].equals("FREQ_CONFLICT")) {
return P2pStatus.NO_COMMON_CHANNEL;
}
try {
err = P2pStatus.valueOf(Integer.parseInt(nameValue[1]));
} catch (NumberFormatException e) {
e.printStackTrace();
}
return err;
}
WifiP2pDevice getWifiP2pDevice(String dataString) {
try {
WifiP2pDevice device = new WifiP2pDevice(dataString);
return device;
} catch (IllegalArgumentException e) {
return null;
}
}
WifiP2pGroup getWifiP2pGroup(String dataString) {
try {
WifiP2pGroup group = new WifiP2pGroup(dataString);
return group;
} catch (IllegalArgumentException e) {
return null;
}
}
/**
* Handle p2p events
*/
private void handleP2pEvents(String dataString) {
if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) {
WifiP2pDevice device = getWifiP2pDevice(dataString);
if (device != null) mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, device);
} else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) {
WifiP2pDevice device = getWifiP2pDevice(dataString);
if (device != null) mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, device);
} else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) {
mStateMachine.sendMessage(P2P_FIND_STOPPED_EVENT);
} else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) {
mStateMachine.sendMessage(P2P_GO_NEGOTIATION_REQUEST_EVENT,
new WifiP2pConfig(dataString));
} else if (dataString.startsWith(P2P_GO_NEG_SUCCESS_STR)) {
mStateMachine.sendMessage(P2P_GO_NEGOTIATION_SUCCESS_EVENT);
} else if (dataString.startsWith(P2P_GO_NEG_FAILURE_STR)) {
mStateMachine.sendMessage(P2P_GO_NEGOTIATION_FAILURE_EVENT, p2pError(dataString));
} else if (dataString.startsWith(P2P_GROUP_FORMATION_SUCCESS_STR)) {
mStateMachine.sendMessage(P2P_GROUP_FORMATION_SUCCESS_EVENT);
} else if (dataString.startsWith(P2P_GROUP_FORMATION_FAILURE_STR)) {
mStateMachine.sendMessage(P2P_GROUP_FORMATION_FAILURE_EVENT, p2pError(dataString));
} else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) {
WifiP2pGroup group = getWifiP2pGroup(dataString);
if (group != null) mStateMachine.sendMessage(P2P_GROUP_STARTED_EVENT, group);
} else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) {
WifiP2pGroup group = getWifiP2pGroup(dataString);
if (group != null) mStateMachine.sendMessage(P2P_GROUP_REMOVED_EVENT, group);
} else if (dataString.startsWith(P2P_INVITATION_RECEIVED_STR)) {
mStateMachine.sendMessage(P2P_INVITATION_RECEIVED_EVENT,
new WifiP2pGroup(dataString));
} else if (dataString.startsWith(P2P_INVITATION_RESULT_STR)) {
mStateMachine.sendMessage(P2P_INVITATION_RESULT_EVENT, p2pError(dataString));
} else if (dataString.startsWith(P2P_PROV_DISC_PBC_REQ_STR)) {
mStateMachine.sendMessage(P2P_PROV_DISC_PBC_REQ_EVENT,
new WifiP2pProvDiscEvent(dataString));
} else if (dataString.startsWith(P2P_PROV_DISC_PBC_RSP_STR)) {
mStateMachine.sendMessage(P2P_PROV_DISC_PBC_RSP_EVENT,
new WifiP2pProvDiscEvent(dataString));
} else if (dataString.startsWith(P2P_PROV_DISC_ENTER_PIN_STR)) {
mStateMachine.sendMessage(P2P_PROV_DISC_ENTER_PIN_EVENT,
new WifiP2pProvDiscEvent(dataString));
} else if (dataString.startsWith(P2P_PROV_DISC_SHOW_PIN_STR)) {
mStateMachine.sendMessage(P2P_PROV_DISC_SHOW_PIN_EVENT,
new WifiP2pProvDiscEvent(dataString));
} else if (dataString.startsWith(P2P_PROV_DISC_FAILURE_STR)) {
mStateMachine.sendMessage(P2P_PROV_DISC_FAILURE_EVENT);
} else if (dataString.startsWith(P2P_SERV_DISC_RESP_STR)) {
List<WifiP2pServiceResponse> list = WifiP2pServiceResponse.newInstance(dataString);
if (list != null) {
mStateMachine.sendMessage(P2P_SERV_DISC_RESP_EVENT, list);
} else {
Log.e(TAG, "Null service resp " + dataString);
}
}
}
/**
* Handle hostap events
*/
private void handleHostApEvents(String dataString) {
String[] tokens = dataString.split(" ");
/* AP-STA-CONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */
if (tokens[0].equals(AP_STA_CONNECTED_STR)) {
mStateMachine.sendMessage(AP_STA_CONNECTED_EVENT, new WifiP2pDevice(dataString));
/* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */
} else if (tokens[0].equals(AP_STA_DISCONNECTED_STR)) {
mStateMachine.sendMessage(AP_STA_DISCONNECTED_EVENT, new WifiP2pDevice(dataString));
}
}
private static final String ADDR_STRING = "addr=";
private static final String RESULT_STRING = "result=";
// ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS
private void handleAnqpResult(String eventStr) {
int addrPos = eventStr.indexOf(ADDR_STRING);
int resPos = eventStr.indexOf(RESULT_STRING);
if (addrPos < 0 || resPos < 0) {
throw new IllegalArgumentException("Unexpected ANQP result notification");
}
int eoaddr = eventStr.indexOf(' ', addrPos + ADDR_STRING.length());
if (eoaddr < 0) {
eoaddr = eventStr.length();
}
int eoresult = eventStr.indexOf(' ', resPos + RESULT_STRING.length());
if (eoresult < 0) {
eoresult = eventStr.length();
}
try {
long bssid = Utils.parseMac(eventStr.substring(addrPos + ADDR_STRING.length(), eoaddr));
int result = eventStr.substring(
resPos + RESULT_STRING.length(), eoresult).equalsIgnoreCase("success") ? 1 : 0;
mStateMachine.sendMessage(ANQP_DONE_EVENT, result, 0, bssid);
}
catch (IllegalArgumentException iae) {
Log.e(TAG, "Bad MAC address in ANQP response: " + iae.getMessage());
}
}
/**
* Handle ANQP events
*/
private void handleGasQueryEvents(String dataString) {
// hs20
if (mStateMachine2 == null) return;
if (dataString.startsWith(GAS_QUERY_START_STR)) {
mStateMachine2.sendMessage(GAS_QUERY_START_EVENT);
} else if (dataString.startsWith(GAS_QUERY_DONE_STR)) {
String[] dataTokens = dataString.split(" ");
String bssid = null;
int success = 0;
for (String token : dataTokens) {
String[] nameValue = token.split("=");
if (nameValue.length != 2) {
continue;
}
if (nameValue[0].equals("addr")) {
bssid = nameValue[1];
continue;
}
if (nameValue[0].equals("result")) {
success = nameValue[1].equals("SUCCESS") ? 1 : 0;
continue;
}
}
mStateMachine2.sendMessage(GAS_QUERY_DONE_EVENT, success, 0, bssid);
} else {
if (DBG) Log.d(TAG, "Unknown GAS query event: " + dataString);
}
}
/**
* Handle HS20 events
*/
private void handleHs20Events(String dataString) {
if (mStateMachine2 == null) return;
if (dataString.startsWith(HS20_SUB_REM_STR)) {
// format: HS20-SUBSCRIPTION-REMEDIATION osu_method, url
String[] dataTokens = dataString.split(" ");
int method = -1;
String url = null;
if (dataTokens.length >= 3) {
method = Integer.parseInt(dataTokens[1]);
url = dataTokens[2];
}
mStateMachine2.sendMessage(HS20_REMEDIATION_EVENT, method, 0, url);
} else if (dataString.startsWith(HS20_DEAUTH_STR)) {
// format: HS20-DEAUTH-IMMINENT-NOTICE code, delay, url
int code = -1;
int delay = -1;
String url = null;
String[] dataTokens = dataString.split(" ");
if (dataTokens.length >= 4) {
code = Integer.parseInt(dataTokens[1]);
delay = Integer.parseInt(dataTokens[2]);
url = dataTokens[3];
}
mStateMachine2.sendMessage(HS20_DEAUTH_EVENT, code, delay, url);
} else {
if (DBG) Log.d(TAG, "Unknown HS20 event: " + dataString);
}
}
/**
* Handle Supplicant Requests
*/
private void handleRequests(String dataString) {
String SSID = null;
int reason = -2;
String requestName = dataString.substring(REQUEST_PREFIX_LEN_STR);
if (TextUtils.isEmpty(requestName)) {
return;
}
if (requestName.startsWith(IDENTITY_STR)) {
Matcher match = mRequestIdentityPattern.matcher(requestName);
if (match.find()) {
SSID = match.group(2);
try {
reason = Integer.parseInt(match.group(1));
} catch (NumberFormatException e) {
reason = -1;
}
} else {
Log.e(TAG, "didn't find SSID " + requestName);
}
mStateMachine.sendMessage(SUP_REQUEST_IDENTITY, eventLogCounter, reason, SSID);
} else if (requestName.startsWith(SIM_STR)) {
Matcher matchGsm = mRequestGsmAuthPattern.matcher(requestName);
Matcher matchUmts = mRequestUmtsAuthPattern.matcher(requestName);
WifiStateMachine.SimAuthRequestData data =
new WifiStateMachine.SimAuthRequestData();
if (matchGsm.find()) {
data.networkId = Integer.parseInt(matchGsm.group(1));
data.protocol = WifiEnterpriseConfig.Eap.SIM;
data.ssid = matchGsm.group(4);
data.data = matchGsm.group(2).split(":");
mStateMachine.sendMessage(SUP_REQUEST_SIM_AUTH, data);
} else if (matchUmts.find()) {
data.networkId = Integer.parseInt(matchUmts.group(1));
data.protocol = WifiEnterpriseConfig.Eap.AKA;
data.ssid = matchUmts.group(4);
data.data = new String[2];
data.data[0] = matchUmts.group(2);
data.data[1] = matchUmts.group(3);
mStateMachine.sendMessage(SUP_REQUEST_SIM_AUTH, data);
} else {
Log.e(TAG, "couldn't parse SIM auth request - " + requestName);
}
} else {
if (DBG) Log.w(TAG, "couldn't identify request type - " + dataString);
}
}
/**
* Handle the supplicant STATE-CHANGE event
* @param dataString New supplicant state string in the format:
* id=network-id state=new-state
*/
private void handleSupplicantStateChange(String dataString) {
WifiSsid wifiSsid = null;
int index = dataString.lastIndexOf("SSID=");
if (index != -1) {
wifiSsid = WifiSsid.createFromAsciiEncoded(
dataString.substring(index + 5));
}
String[] dataTokens = dataString.split(" ");
String BSSID = null;
int networkId = -1;
int newState = -1;
for (String token : dataTokens) {
String[] nameValue = token.split("=");
if (nameValue.length != 2) {
continue;
}
if (nameValue[0].equals("BSSID")) {
BSSID = nameValue[1];
continue;
}
int value;
try {
value = Integer.parseInt(nameValue[1]);
} catch (NumberFormatException e) {
continue;
}
if (nameValue[0].equals("id")) {
networkId = value;
} else if (nameValue[0].equals("state")) {
newState = value;
}
}
if (newState == -1) return;
SupplicantState newSupplicantState = SupplicantState.INVALID;
for (SupplicantState state : SupplicantState.values()) {
if (state.ordinal() == newState) {
newSupplicantState = state;
break;
}
}
if (newSupplicantState == SupplicantState.INVALID) {
Log.w(TAG, "Invalid supplicant state: " + newState);
}
notifySupplicantStateChange(networkId, wifiSsid, BSSID, newSupplicantState);
}
private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data) {
String BSSID = null;
int networkId = -1;
int reason = 0;
int ind = -1;
int local = 0;
Matcher match;
if (newState == NetworkInfo.DetailedState.CONNECTED) {
match = mConnectedEventPattern.matcher(data);
if (!match.find()) {
if (DBG) Log.d(TAG, "handleNetworkStateChange: Couldnt find BSSID in event string");
} else {
BSSID = match.group(1);
try {
networkId = Integer.parseInt(match.group(2));
} catch (NumberFormatException e) {
networkId = -1;
}
}
notifyNetworkStateChange(newState, BSSID, networkId, reason);
} else if (newState == NetworkInfo.DetailedState.DISCONNECTED) {
match = mDisconnectedEventPattern.matcher(data);
if (!match.find()) {
if (DBG) Log.d(TAG, "handleNetworkStateChange: Could not parse disconnect string");
} else {
BSSID = match.group(1);
try {
reason = Integer.parseInt(match.group(2));
} catch (NumberFormatException e) {
reason = -1;
}
try {
local = Integer.parseInt(match.group(3));
} catch (NumberFormatException e) {
local = -1;
}
}
notifyNetworkStateChange(newState, BSSID, local, reason);
}
}
/**
* Send the state machine a notification that the state of Wifi connectivity
* has changed.
* @param newState the new network state
* @param BSSID when the new state is {@link NetworkInfo.DetailedState#CONNECTED},
* this is the MAC address of the access point. Otherwise, it
* is {@code null}.
* @param netId the configured network on which the state change occurred
*/
void notifyNetworkStateChange(NetworkInfo.DetailedState newState,
String BSSID, int netId, int reason) {
if (newState == NetworkInfo.DetailedState.CONNECTED) {
Message m = mStateMachine.obtainMessage(NETWORK_CONNECTION_EVENT,
netId, reason, BSSID);
mStateMachine.sendMessage(m);
} else {
Message m = mStateMachine.obtainMessage(NETWORK_DISCONNECTION_EVENT,
netId, reason, BSSID);
if (DBG) logDbg("WifiMonitor notify network disconnect: "
+ BSSID
+ " reason=" + Integer.toString(reason));
mStateMachine.sendMessage(m);
}
}
/**
* Send the state machine a notification that the state of the supplicant
* has changed.
* @param networkId the configured network on which the state change occurred
* @param wifiSsid network name
* @param BSSID network address
* @param newState the new {@code SupplicantState}
*/
void notifySupplicantStateChange(int networkId, WifiSsid wifiSsid, String BSSID,
SupplicantState newState) {
mStateMachine.sendMessage(mStateMachine.obtainMessage(SUPPLICANT_STATE_CHANGE_EVENT,
eventLogCounter, 0,
new StateChangeResult(networkId, wifiSsid, BSSID, newState)));
}
}