/*
* 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 android.net.wifi;
import android.net.NetworkInfo;
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.net.wifi.StateChangeResult;
import android.os.Message;
import android.util.Log;
import com.android.internal.util.Protocol;
import com.android.internal.util.StateMachine;
import java.util.List;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
/**
* 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 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 UNKNOWN = 9;
/** 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 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";
/**
* Names of events from wpa_supplicant (minus the prefix). In the
* format descriptions, * "x"
* designates a dynamic value that needs to be parsed out from the event
* string
*/
/**
*
* CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed
*
* xx:xx:xx:xx:xx:xx is the BSSID of the associated access point
*/
private static final String CONNECTED_STR = "CONNECTED";
/**
*
* CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
*
*/
private static final String DISCONNECTED_STR = "DISCONNECTED";
/**
*
* CTRL-EVENT-STATE-CHANGE x
*
* x is the numerical value of the new state.
*/
private static final String STATE_CHANGE_STR = "STATE-CHANGE";
/**
*
* CTRL-EVENT-SCAN-RESULTS ready
*
*/
private static final String SCAN_RESULTS_STR = "SCAN-RESULTS";
/**
*
* CTRL-EVENT-LINK-SPEED x Mb/s
*
* {@code x} is the link speed in Mb/sec.
*/
private static final String LINK_SPEED_STR = "LINK-SPEED";
/**
*
* CTRL-EVENT-TERMINATING - signal x
*
* x is the signal that caused termination.
*/
private static final String TERMINATING_STR = "TERMINATING";
/**
*
* CTRL-EVENT-DRIVER-STATE state
*
* state can be HANGED
*/
private static final String DRIVER_STATE_STR = "DRIVER-STATE";
/**
*
* CTRL-EVENT-EAP-FAILURE EAP authentication failed
*
*/
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";
/**
* Regex pattern for extracting an Ethernet-style MAC address from a string.
* Matches a strings like the following:
* CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]
*/
private static Pattern mConnectedEventPattern =
Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) ");
/** 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";
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 */
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";
/*
* Protocol format is as follows.
* 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)
*
* 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 final StateMachine mStateMachine;
private final WifiNative mWifiNative;
/* 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;
/* 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;
/* hostap events */
public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41;
public static final int AP_STA_CONNECTED_EVENT = BASE + 42;
/**
* This indicates the supplicant connection for the monitor is closed
*/
private static final String MONITOR_SOCKET_CLOSED_STR = "connection closed";
/**
* This indicates a read error on the monitor socket conenction
*/
private static final String WPA_RECV_ERROR_STR = "recv error";
/**
* Tracks consecutive receive errors
*/
private int mRecvErrors = 0;
/**
* Max errors before we close supplicant connection
*/
private static final int MAX_RECV_ERRORS = 10;
public WifiMonitor(StateMachine wifiStateMachine, WifiNative wifiNative) {
mStateMachine = wifiStateMachine;
mWifiNative = wifiNative;
}
public void startMonitoring() {
new MonitorThread().start();
}
class MonitorThread extends Thread {
public MonitorThread() {
super("WifiMonitor");
}
public void run() {
if (connectToSupplicant()) {
// Send a message indicating that it is now possible to send commands
// to the supplicant
mStateMachine.sendMessage(SUP_CONNECTION_EVENT);
} else {
mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT);
return;
}
//noinspection InfiniteLoopStatement
for (;;) {
String eventStr = mWifiNative.waitForEvent();
// Skip logging the common but mostly uninteresting scan-results event
if (false && eventStr.indexOf(SCAN_RESULTS_STR) == -1) {
Log.d(TAG, "Event [" + 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);
} 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);
}
continue;
}
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 (false) Log.i(TAG, "Received wpa_supplicant event with empty event name");
continue;
}
/*
* 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(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
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 == 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 (++mRecvErrors > MAX_RECV_ERRORS) {
if (false) {
Log.d(TAG, "too many recv errors, closing connection");
}
} else {
continue;
}
}
// notify and exit
mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT);
break;
} else if (event == EAP_FAILURE) {
if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) {
mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT);
}
} else {
handleEvent(event, eventData);
}
mRecvErrors = 0;
}
}
private boolean connectToSupplicant() {
int connectTries = 0;
while (true) {
if (mWifiNative.connectToSupplicant()) {
return true;
}
if (connectTries++ < 5) {
nap(1);
} else {
break;
}
}
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) {
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 UNKNOWN:
break;
}
}
private void handleWpsFailEvent(String dataString) {
final Pattern p = Pattern.compile(WPS_FAIL_PATTERN);
Matcher match = p.matcher(dataString);
if (match.find()) {
String cfgErr = match.group(1);
String reason = match.group(2);
if (reason != null) {
switch(Integer.parseInt(reason)) {
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;
}
}
if (cfgErr != null) {
switch(Integer.parseInt(cfgErr)) {
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;
}
}
}
//For all other errors, return a generic internal error
mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT,
WifiManager.ERROR, 0));
}
/**
* Handle p2p events
*/
private void handleP2pEvents(String dataString) {
if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) {
mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, new WifiP2pDevice(dataString));
} else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) {
mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, new WifiP2pDevice(dataString));
} 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);
} 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);
} else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) {
mStateMachine.sendMessage(P2P_GROUP_STARTED_EVENT, new WifiP2pGroup(dataString));
} else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) {
mStateMachine.sendMessage(P2P_GROUP_REMOVED_EVENT, new WifiP2pGroup(dataString));
} 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)) {
String[] tokens = dataString.split(" ");
if (tokens.length != 2) return;
String[] nameValue = tokens[1].split("=");
if (nameValue.length != 2) return;
mStateMachine.sendMessage(P2P_INVITATION_RESULT_EVENT, nameValue[1]);
} 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_SERV_DISC_RESP_STR)) {
List 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));
}
}
/**
* 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) {
String SSID = null;
int index = dataString.lastIndexOf("SSID=");
if (index != -1) SSID = 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, SSID, BSSID, newSupplicantState);
}
}
private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data) {
String BSSID = null;
int networkId = -1;
if (newState == NetworkInfo.DetailedState.CONNECTED) {
Matcher match = mConnectedEventPattern.matcher(data);
if (!match.find()) {
if (false) Log.d(TAG, "Could not find BSSID in CONNECTED event string");
} else {
BSSID = match.group(1);
try {
networkId = Integer.parseInt(match.group(2));
} catch (NumberFormatException e) {
networkId = -1;
}
}
}
notifyNetworkStateChange(newState, BSSID, networkId);
}
/**
* Send the state machine a notification that the state of Wifi connectivity
* has changed.
* @param networkId the configured network on which the state change occurred
* @param newState the new network state
* @param BSSID when the new state is {@link DetailedState#CONNECTED
* NetworkInfo.DetailedState.CONNECTED},
* this is the MAC address of the access point. Otherwise, it
* is {@code null}.
*/
void notifyNetworkStateChange(NetworkInfo.DetailedState newState, String BSSID, int netId) {
if (newState == NetworkInfo.DetailedState.CONNECTED) {
Message m = mStateMachine.obtainMessage(NETWORK_CONNECTION_EVENT,
netId, 0, BSSID);
mStateMachine.sendMessage(m);
} else {
Message m = mStateMachine.obtainMessage(NETWORK_DISCONNECTION_EVENT,
netId, 0, BSSID);
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 SSID network name
* @param BSSID network address
* @param newState the new {@code SupplicantState}
*/
void notifySupplicantStateChange(int networkId, String SSID, String BSSID, SupplicantState newState) {
mStateMachine.sendMessage(mStateMachine.obtainMessage(SUPPLICANT_STATE_CHANGE_EVENT,
new StateChangeResult(networkId, SSID, BSSID, newState)));
}
/**
* Sleep for a period of time.
* @param secs the number of seconds to sleep
*/
private static void nap(int secs) {
try {
Thread.sleep(secs * 1000);
} catch (InterruptedException ignore) {
}
}
}