/*
* 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.wifi.BatchedScanSettings;
import android.net.wifi.RttManager;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiLinkLayerStats;
import android.net.wifi.WifiScanner;
import android.net.wifi.WpsInfo;
import android.net.wifi.p2p.WifiP2pConfig;
import android.net.wifi.p2p.WifiP2pGroup;
import android.os.SystemClock;
import android.text.TextUtils;
import android.net.wifi.p2p.nsd.WifiP2pServiceInfo;
import android.util.LocalLog;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
/**
* Native calls for bring up/shut down of the supplicant daemon and for
* sending requests to the supplicant daemon
*
* waitForEvent() is called on the monitor thread for events. All other methods
* must be serialized from the framework.
*
* {@hide}
*/
public class WifiNative {
private static boolean DBG = false;
private final String mTAG;
private static final int DEFAULT_GROUP_OWNER_INTENT = 6;
static final int BLUETOOTH_COEXISTENCE_MODE_ENABLED = 0;
static final int BLUETOOTH_COEXISTENCE_MODE_DISABLED = 1;
static final int BLUETOOTH_COEXISTENCE_MODE_SENSE = 2;
static final int SCAN_WITHOUT_CONNECTION_SETUP = 1;
static final int SCAN_WITH_CONNECTION_SETUP = 2;
// Hold this lock before calling supplicant - it is required to
// mutually exclude access from Wifi and P2p state machines
static final Object mLock = new Object();
public final String mInterfaceName;
public final String mInterfacePrefix;
private boolean mSuspendOptEnabled = false;
/* Register native functions */
static {
/* Native functions are defined in libwifi-service.so */
System.loadLibrary("wifi-service");
registerNatives();
}
private static native int registerNatives();
public native static boolean loadDriver();
public native static boolean isDriverLoaded();
public native static boolean unloadDriver();
public native static boolean startSupplicant(boolean p2pSupported);
/* Sends a kill signal to supplicant. To be used when we have lost connection
or when the supplicant is hung */
public native static boolean killSupplicant(boolean p2pSupported);
private native boolean connectToSupplicantNative();
private native void closeSupplicantConnectionNative();
/**
* Wait for the supplicant to send an event, returning the event string.
* @return the event string sent by the supplicant.
*/
private native String waitForEventNative();
private native boolean doBooleanCommandNative(String command);
private native int doIntCommandNative(String command);
private native String doStringCommandNative(String command);
public WifiNative(String interfaceName) {
mInterfaceName = interfaceName;
mTAG = "WifiNative-" + interfaceName;
if (!interfaceName.equals("p2p0")) {
mInterfacePrefix = "IFNAME=" + interfaceName + " ";
} else {
// commands for p2p0 interface don't need prefix
mInterfacePrefix = "";
}
}
void enableVerboseLogging(int verbose) {
if (verbose > 0) {
DBG = true;
} else {
DBG = false;
}
}
private static final LocalLog mLocalLog = new LocalLog(1024);
// hold mLock before accessing mCmdIdLock
private static int sCmdId;
public LocalLog getLocalLog() {
return mLocalLog;
}
private static int getNewCmdIdLocked() {
return sCmdId++;
}
private void localLog(String s) {
if (mLocalLog != null)
mLocalLog.log(mInterfaceName + ": " + s);
}
public boolean connectToSupplicant() {
// No synchronization necessary .. it is implemented in WifiMonitor
localLog(mInterfacePrefix + "connectToSupplicant");
return connectToSupplicantNative();
}
public void closeSupplicantConnection() {
localLog(mInterfacePrefix + "closeSupplicantConnection");
closeSupplicantConnectionNative();
}
public String waitForEvent() {
// No synchronization necessary .. it is implemented in WifiMonitor
return waitForEventNative();
}
private boolean doBooleanCommand(String command) {
if (DBG) Log.d(mTAG, "doBoolean: " + command);
synchronized (mLock) {
int cmdId = getNewCmdIdLocked();
String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command;
boolean result = doBooleanCommandNative(mInterfacePrefix + command);
localLog(toLog + " -> " + result);
if (DBG) Log.d(mTAG, command + ": returned " + result);
return result;
}
}
private int doIntCommand(String command) {
if (DBG) Log.d(mTAG, "doInt: " + command);
synchronized (mLock) {
int cmdId = getNewCmdIdLocked();
String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command;
int result = doIntCommandNative(mInterfacePrefix + command);
localLog(toLog + " -> " + result);
if (DBG) Log.d(mTAG, " returned " + result);
return result;
}
}
private String doStringCommand(String command) {
if (DBG) {
//GET_NETWORK commands flood the logs
if (!command.startsWith("GET_NETWORK")) {
Log.d(mTAG, "doString: [" + command + "]");
}
}
synchronized (mLock) {
int cmdId = getNewCmdIdLocked();
String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command;
String result = doStringCommandNative(mInterfacePrefix + command);
if (result == null) {
if (DBG) Log.d(mTAG, "doStringCommandNative no result");
} else {
if (!command.startsWith("STATUS-")) {
localLog(toLog + " -> " + result);
}
if (DBG) Log.d(mTAG, " returned " + result.replace("\n", " "));
}
return result;
}
}
private String doStringCommandWithoutLogging(String command) {
if (DBG) {
//GET_NETWORK commands flood the logs
if (!command.startsWith("GET_NETWORK")) {
Log.d(mTAG, "doString: [" + command + "]");
}
}
synchronized (mLock) {
return doStringCommandNative(mInterfacePrefix + command);
}
}
public boolean ping() {
String pong = doStringCommand("PING");
return (pong != null && pong.equals("PONG"));
}
public void setSupplicantLogLevel(String level) {
doStringCommand("LOG_LEVEL " + level);
}
public String getFreqCapability() {
return doStringCommand("GET_CAPABILITY freq");
}
public boolean scan(int type, String freqList) {
if (type == SCAN_WITHOUT_CONNECTION_SETUP) {
if (freqList == null) return doBooleanCommand("SCAN TYPE=ONLY");
else return doBooleanCommand("SCAN TYPE=ONLY freq=" + freqList);
} else if (type == SCAN_WITH_CONNECTION_SETUP) {
if (freqList == null) return doBooleanCommand("SCAN");
else return doBooleanCommand("SCAN freq=" + freqList);
} else {
throw new IllegalArgumentException("Invalid scan type");
}
}
/* Does a graceful shutdown of supplicant. Is a common stop function for both p2p and sta.
*
* Note that underneath we use a harsh-sounding "terminate" supplicant command
* for a graceful stop and a mild-sounding "stop" interface
* to kill the process
*/
public boolean stopSupplicant() {
return doBooleanCommand("TERMINATE");
}
public String listNetworks() {
return doStringCommand("LIST_NETWORKS");
}
public String listNetworks(int last_id) {
return doStringCommand("LIST_NETWORKS LAST_ID=" + last_id);
}
public int addNetwork() {
return doIntCommand("ADD_NETWORK");
}
public boolean setNetworkVariable(int netId, String name, String value) {
if (TextUtils.isEmpty(name) || TextUtils.isEmpty(value)) return false;
return doBooleanCommand("SET_NETWORK " + netId + " " + name + " " + value);
}
public String getNetworkVariable(int netId, String name) {
if (TextUtils.isEmpty(name)) return null;
// GET_NETWORK will likely flood the logs ...
return doStringCommandWithoutLogging("GET_NETWORK " + netId + " " + name);
}
public boolean removeNetwork(int netId) {
return doBooleanCommand("REMOVE_NETWORK " + netId);
}
private void logDbg(String debug) {
long now = SystemClock.elapsedRealtimeNanos();
String ts = String.format("[%,d us] ", now/1000);
Log.e("WifiNative: ", ts+debug+ " stack:"
+ Thread.currentThread().getStackTrace()[2].getMethodName() +" - "
+ Thread.currentThread().getStackTrace()[3].getMethodName() +" - "
+ Thread.currentThread().getStackTrace()[4].getMethodName() +" - "
+ Thread.currentThread().getStackTrace()[5].getMethodName()+" - "
+ Thread.currentThread().getStackTrace()[6].getMethodName());
}
public boolean enableNetwork(int netId, boolean disableOthers) {
if (DBG) logDbg("enableNetwork nid=" + Integer.toString(netId)
+ " disableOthers=" + disableOthers);
if (disableOthers) {
return doBooleanCommand("SELECT_NETWORK " + netId);
} else {
return doBooleanCommand("ENABLE_NETWORK " + netId);
}
}
public boolean disableNetwork(int netId) {
if (DBG) logDbg("disableNetwork nid=" + Integer.toString(netId));
return doBooleanCommand("DISABLE_NETWORK " + netId);
}
public boolean reconnect() {
if (DBG) logDbg("RECONNECT ");
return doBooleanCommand("RECONNECT");
}
public boolean reassociate() {
if (DBG) logDbg("REASSOCIATE ");
return doBooleanCommand("REASSOCIATE");
}
public boolean disconnect() {
if (DBG) logDbg("DISCONNECT ");
return doBooleanCommand("DISCONNECT");
}
public String status() {
return status(false);
}
public String status(boolean noEvents) {
if (noEvents) {
return doStringCommand("STATUS-NO_EVENTS");
} else {
return doStringCommand("STATUS");
}
}
public String getMacAddress() {
//Macaddr = XX.XX.XX.XX.XX.XX
String ret = doStringCommand("DRIVER MACADDR");
if (!TextUtils.isEmpty(ret)) {
String[] tokens = ret.split(" = ");
if (tokens.length == 2) return tokens[1];
}
return null;
}
/**
* Format of results:
* =================
* id=1
* bssid=68:7f:74:d7:1b:6e
* freq=2412
* level=-43
* tsf=1344621975160944
* age=2623
* flags=[WPA2-PSK-CCMP][WPS][ESS]
* ssid=zubyb
* ====
*
* RANGE=ALL gets all scan results
* RANGE=ID- gets results from ID
* MASK=<N> see wpa_supplicant/src/common/wpa_ctrl.h for details
*/
public String scanResults(int sid) {
return doStringCommandWithoutLogging("BSS RANGE=" + sid + "- MASK=0x21987");
}
/**
* Format of result:
* id=1016
* bssid=00:03:7f:40:84:10
* freq=2462
* beacon_int=200
* capabilities=0x0431
* qual=0
* noise=0
* level=-46
* tsf=0000002669008476
* age=5
* ie=00105143412d485332302d52322d54455354010882848b960c12182403010b0706555...
* flags=[WPA2-EAP-CCMP][ESS][P2P][HS20]
* ssid=QCA-HS20-R2-TEST
* p2p_device_name=
* p2p_config_methods=0x0SET_NE
* anqp_venue_name=02083d656e6757692d466920416c6c69616e63650a3239383920436f...
* anqp_network_auth_type=010000
* anqp_roaming_consortium=03506f9a05001bc504bd
* anqp_ip_addr_type_availability=0c
* anqp_nai_realm=0200300000246d61696c2e6578616d706c652e636f6d3b636973636f2...
* anqp_3gpp=000600040132f465
* anqp_domain_name=0b65786d61706c652e636f6d
* hs20_operator_friendly_name=11656e6757692d466920416c6c69616e63650e636869...
* hs20_wan_metrics=01c40900008001000000000a00
* hs20_connection_capability=0100000006140001061600000650000106bb010106bb0...
* hs20_osu_providers_list=0b5143412d4f53552d425353010901310015656e6757692d...
*/
public String scanResult(String bssid) {
return doStringCommand("BSS " + bssid);
}
/**
* Format of command
* DRIVER WLS_BATCHING SET SCANFREQ=x MSCAN=r BESTN=y CHANNEL=<z, w, t> RTT=s
* where x is an ascii representation of an integer number of seconds between scans
* r is an ascii representation of an integer number of scans per batch
* y is an ascii representation of an integer number of the max AP to remember per scan
* z, w, t represent a 1..n size list of channel numbers and/or 'A', 'B' values
* indicating entire ranges of channels
* s is an ascii representation of an integer number of highest-strength AP
* for which we'd like approximate distance reported
*
* The return value is an ascii integer representing a guess of the number of scans
* the firmware can remember before it runs out of buffer space or -1 on error
*/
public String setBatchedScanSettings(BatchedScanSettings settings) {
if (settings == null) {
return doStringCommand("DRIVER WLS_BATCHING STOP");
}
String cmd = "DRIVER WLS_BATCHING SET SCANFREQ=" + settings.scanIntervalSec;
cmd += " MSCAN=" + settings.maxScansPerBatch;
if (settings.maxApPerScan != BatchedScanSettings.UNSPECIFIED) {
cmd += " BESTN=" + settings.maxApPerScan;
}
if (settings.channelSet != null && !settings.channelSet.isEmpty()) {
cmd += " CHANNEL=<";
int i = 0;
for (String channel : settings.channelSet) {
cmd += (i > 0 ? "," : "") + channel;
++i;
}
cmd += ">";
}
if (settings.maxApForDistance != BatchedScanSettings.UNSPECIFIED) {
cmd += " RTT=" + settings.maxApForDistance;
}
return doStringCommand(cmd);
}
public String getBatchedScanResults() {
return doStringCommand("DRIVER WLS_BATCHING GET");
}
public boolean startDriver() {
return doBooleanCommand("DRIVER START");
}
public boolean stopDriver() {
return doBooleanCommand("DRIVER STOP");
}
/**
* Start filtering out Multicast V4 packets
* @return {@code true} if the operation succeeded, {@code false} otherwise
*
* Multicast filtering rules work as follows:
*
* The driver can filter multicast (v4 and/or v6) and broadcast packets when in
* a power optimized mode (typically when screen goes off).
*
* In order to prevent the driver from filtering the multicast/broadcast packets, we have to
* add a DRIVER RXFILTER-ADD rule followed by DRIVER RXFILTER-START to make the rule effective
*
* DRIVER RXFILTER-ADD Num
* where Num = 0 - Unicast, 1 - Broadcast, 2 - Mutil4 or 3 - Multi6
*
* and DRIVER RXFILTER-START
* In order to stop the usage of these rules, we do
*
* DRIVER RXFILTER-STOP
* DRIVER RXFILTER-REMOVE Num
* where Num is as described for RXFILTER-ADD
*
* The SETSUSPENDOPT driver command overrides the filtering rules
*/
public boolean startFilteringMulticastV4Packets() {
return doBooleanCommand("DRIVER RXFILTER-STOP")
&& doBooleanCommand("DRIVER RXFILTER-REMOVE 2")
&& doBooleanCommand("DRIVER RXFILTER-START");
}
/**
* Stop filtering out Multicast V4 packets.
* @return {@code true} if the operation succeeded, {@code false} otherwise
*/
public boolean stopFilteringMulticastV4Packets() {
return doBooleanCommand("DRIVER RXFILTER-STOP")
&& doBooleanCommand("DRIVER RXFILTER-ADD 2")
&& doBooleanCommand("DRIVER RXFILTER-START");
}
/**
* Start filtering out Multicast V6 packets
* @return {@code true} if the operation succeeded, {@code false} otherwise
*/
public boolean startFilteringMulticastV6Packets() {
return doBooleanCommand("DRIVER RXFILTER-STOP")
&& doBooleanCommand("DRIVER RXFILTER-REMOVE 3")
&& doBooleanCommand("DRIVER RXFILTER-START");
}
/**
* Stop filtering out Multicast V6 packets.
* @return {@code true} if the operation succeeded, {@code false} otherwise
*/
public boolean stopFilteringMulticastV6Packets() {
return doBooleanCommand("DRIVER RXFILTER-STOP")
&& doBooleanCommand("DRIVER RXFILTER-ADD 3")
&& doBooleanCommand("DRIVER RXFILTER-START");
}
public int getBand() {
String ret = doStringCommand("DRIVER GETBAND");
if (!TextUtils.isEmpty(ret)) {
//reply is "BAND X" where X is the band
String[] tokens = ret.split(" ");
try {
if (tokens.length == 2) return Integer.parseInt(tokens[1]);
} catch (NumberFormatException e) {
return -1;
}
}
return -1;
}
public boolean setBand(int band) {
return doBooleanCommand("DRIVER SETBAND " + band);
}
/**
* Sets the bluetooth coexistence mode.
*
* @param mode One of {@link #BLUETOOTH_COEXISTENCE_MODE_DISABLED},
* {@link #BLUETOOTH_COEXISTENCE_MODE_ENABLED}, or
* {@link #BLUETOOTH_COEXISTENCE_MODE_SENSE}.
* @return Whether the mode was successfully set.
*/
public boolean setBluetoothCoexistenceMode(int mode) {
return doBooleanCommand("DRIVER BTCOEXMODE " + mode);
}
/**
* Enable or disable Bluetooth coexistence scan mode. When this mode is on,
* some of the low-level scan parameters used by the driver are changed to
* reduce interference with A2DP streaming.
*
* @param isSet whether to enable or disable this mode
* @return {@code true} if the command succeeded, {@code false} otherwise.
*/
public boolean setBluetoothCoexistenceScanMode(boolean setCoexScanMode) {
if (setCoexScanMode) {
return doBooleanCommand("DRIVER BTCOEXSCAN-START");
} else {
return doBooleanCommand("DRIVER BTCOEXSCAN-STOP");
}
}
public void enableSaveConfig() {
doBooleanCommand("SET update_config 1");
}
public boolean saveConfig() {
return doBooleanCommand("SAVE_CONFIG");
}
public boolean addToBlacklist(String bssid) {
if (TextUtils.isEmpty(bssid)) return false;
return doBooleanCommand("BLACKLIST " + bssid);
}
public boolean clearBlacklist() {
return doBooleanCommand("BLACKLIST clear");
}
public boolean setSuspendOptimizations(boolean enabled) {
// if (mSuspendOptEnabled == enabled) return true;
mSuspendOptEnabled = enabled;
Log.e("native", "do suspend " + enabled);
if (enabled) {
return doBooleanCommand("DRIVER SETSUSPENDMODE 1");
} else {
return doBooleanCommand("DRIVER SETSUSPENDMODE 0");
}
}
public boolean setCountryCode(String countryCode) {
return doBooleanCommand("DRIVER COUNTRY " + countryCode.toUpperCase(Locale.ROOT));
}
public void enableBackgroundScan(boolean enable) {
if (enable) {
doBooleanCommand("SET pno 1");
} else {
doBooleanCommand("SET pno 0");
}
}
public void enableAutoConnect(boolean enable) {
if (enable) {
doBooleanCommand("STA_AUTOCONNECT 1");
} else {
doBooleanCommand("STA_AUTOCONNECT 0");
}
}
public void setScanInterval(int scanInterval) {
doBooleanCommand("SCAN_INTERVAL " + scanInterval);
}
public void startTdls(String macAddr, boolean enable) {
if (enable) {
doBooleanCommand("TDLS_DISCOVER " + macAddr);
doBooleanCommand("TDLS_SETUP " + macAddr);
} else {
doBooleanCommand("TDLS_TEARDOWN " + macAddr);
}
}
/** Example output:
* RSSI=-65
* LINKSPEED=48
* NOISE=9999
* FREQUENCY=0
*/
public String signalPoll() {
return doStringCommandWithoutLogging("SIGNAL_POLL");
}
/** Example outout:
* TXGOOD=396
* TXBAD=1
*/
public String pktcntPoll() {
return doStringCommand("PKTCNT_POLL");
}
public void bssFlush() {
doBooleanCommand("BSS_FLUSH 0");
}
public boolean startWpsPbc(String bssid) {
if (TextUtils.isEmpty(bssid)) {
return doBooleanCommand("WPS_PBC");
} else {
return doBooleanCommand("WPS_PBC " + bssid);
}
}
public boolean startWpsPbc(String iface, String bssid) {
synchronized (mLock) {
if (TextUtils.isEmpty(bssid)) {
return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC");
} else {
return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC " + bssid);
}
}
}
public boolean startWpsPinKeypad(String pin) {
if (TextUtils.isEmpty(pin)) return false;
return doBooleanCommand("WPS_PIN any " + pin);
}
public boolean startWpsPinKeypad(String iface, String pin) {
if (TextUtils.isEmpty(pin)) return false;
synchronized (mLock) {
return doBooleanCommandNative("IFNAME=" + iface + " WPS_PIN any " + pin);
}
}
public String startWpsPinDisplay(String bssid) {
if (TextUtils.isEmpty(bssid)) {
return doStringCommand("WPS_PIN any");
} else {
return doStringCommand("WPS_PIN " + bssid);
}
}
public String startWpsPinDisplay(String iface, String bssid) {
synchronized (mLock) {
if (TextUtils.isEmpty(bssid)) {
return doStringCommandNative("IFNAME=" + iface + " WPS_PIN any");
} else {
return doStringCommandNative("IFNAME=" + iface + " WPS_PIN " + bssid);
}
}
}
public boolean setExternalSim(boolean external) {
synchronized (mLock) {
String value = external ? "1" : "0";
Log.d(TAG, "Setting external_sim to " + value);
return doBooleanCommand("SET external_sim " + value);
}
}
public boolean simAuthResponse(int id, String response) {
synchronized (mLock) {
return doBooleanCommand("CTRL-RSP-SIM-" + id + ":GSM-AUTH" + response);
}
}
/* Configures an access point connection */
public boolean startWpsRegistrar(String bssid, String pin) {
if (TextUtils.isEmpty(bssid) || TextUtils.isEmpty(pin)) return false;
return doBooleanCommand("WPS_REG " + bssid + " " + pin);
}
public boolean cancelWps() {
return doBooleanCommand("WPS_CANCEL");
}
public boolean setPersistentReconnect(boolean enabled) {
int value = (enabled == true) ? 1 : 0;
return doBooleanCommand("SET persistent_reconnect " + value);
}
public boolean setDeviceName(String name) {
return doBooleanCommand("SET device_name " + name);
}
public boolean setDeviceType(String type) {
return doBooleanCommand("SET device_type " + type);
}
public boolean setConfigMethods(String cfg) {
return doBooleanCommand("SET config_methods " + cfg);
}
public boolean setManufacturer(String value) {
return doBooleanCommand("SET manufacturer " + value);
}
public boolean setModelName(String value) {
return doBooleanCommand("SET model_name " + value);
}
public boolean setModelNumber(String value) {
return doBooleanCommand("SET model_number " + value);
}
public boolean setSerialNumber(String value) {
return doBooleanCommand("SET serial_number " + value);
}
public boolean setP2pSsidPostfix(String postfix) {
return doBooleanCommand("SET p2p_ssid_postfix " + postfix);
}
public boolean setP2pGroupIdle(String iface, int time) {
synchronized (mLock) {
return doBooleanCommandNative("IFNAME=" + iface + " SET p2p_group_idle " + time);
}
}
public void setPowerSave(boolean enabled) {
if (enabled) {
doBooleanCommand("SET ps 1");
} else {
doBooleanCommand("SET ps 0");
}
}
public boolean setP2pPowerSave(String iface, boolean enabled) {
synchronized (mLock) {
if (enabled) {
return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 1");
} else {
return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 0");
}
}
}
public boolean setWfdEnable(boolean enable) {
return doBooleanCommand("SET wifi_display " + (enable ? "1" : "0"));
}
public boolean setWfdDeviceInfo(String hex) {
return doBooleanCommand("WFD_SUBELEM_SET 0 " + hex);
}
/**
* "sta" prioritizes STA connection over P2P and "p2p" prioritizes
* P2P connection over STA
*/
public boolean setConcurrencyPriority(String s) {
return doBooleanCommand("P2P_SET conc_pref " + s);
}
public boolean p2pFind() {
return doBooleanCommand("P2P_FIND");
}
public boolean p2pFind(int timeout) {
if (timeout <= 0) {
return p2pFind();
}
return doBooleanCommand("P2P_FIND " + timeout);
}
public boolean p2pStopFind() {
return doBooleanCommand("P2P_STOP_FIND");
}
public boolean p2pListen() {
return doBooleanCommand("P2P_LISTEN");
}
public boolean p2pListen(int timeout) {
if (timeout <= 0) {
return p2pListen();
}
return doBooleanCommand("P2P_LISTEN " + timeout);
}
public boolean p2pExtListen(boolean enable, int period, int interval) {
if (enable && interval < period) {
return false;
}
return doBooleanCommand("P2P_EXT_LISTEN"
+ (enable ? (" " + period + " " + interval) : ""));
}
public boolean p2pSetChannel(int lc, int oc) {
if (DBG) Log.d(mTAG, "p2pSetChannel: lc="+lc+", oc="+oc);
if (lc >=1 && lc <= 11) {
if (!doBooleanCommand("P2P_SET listen_channel " + lc)) {
return false;
}
} else if (lc != 0) {
return false;
}
if (oc >= 1 && oc <= 165 ) {
int freq = (oc <= 14 ? 2407 : 5000) + oc * 5;
return doBooleanCommand("P2P_SET disallow_freq 1000-"
+ (freq - 5) + "," + (freq + 5) + "-6000");
} else if (oc == 0) {
/* oc==0 disables "P2P_SET disallow_freq" (enables all freqs) */
return doBooleanCommand("P2P_SET disallow_freq \"\"");
}
return false;
}
public boolean p2pFlush() {
return doBooleanCommand("P2P_FLUSH");
}
/* p2p_connect <peer device address> <pbc|pin|PIN#> [label|display|keypad]
[persistent] [join|auth] [go_intent=<0..15>] [freq=<in MHz>] */
public String p2pConnect(WifiP2pConfig config, boolean joinExistingGroup) {
if (config == null) return null;
List<String> args = new ArrayList<String>();
WpsInfo wps = config.wps;
args.add(config.deviceAddress);
switch (wps.setup) {
case WpsInfo.PBC:
args.add("pbc");
break;
case WpsInfo.DISPLAY:
if (TextUtils.isEmpty(wps.pin)) {
args.add("pin");
} else {
args.add(wps.pin);
}
args.add("display");
break;
case WpsInfo.KEYPAD:
args.add(wps.pin);
args.add("keypad");
break;
case WpsInfo.LABEL:
args.add(wps.pin);
args.add("label");
default:
break;
}
if (config.netId == WifiP2pGroup.PERSISTENT_NET_ID) {
args.add("persistent");
}
if (joinExistingGroup) {
args.add("join");
} else {
//TODO: This can be adapted based on device plugged in state and
//device battery state
int groupOwnerIntent = config.groupOwnerIntent;
if (groupOwnerIntent < 0 || groupOwnerIntent > 15) {
groupOwnerIntent = DEFAULT_GROUP_OWNER_INTENT;
}
args.add("go_intent=" + groupOwnerIntent);
}
String command = "P2P_CONNECT ";
for (String s : args) command += s + " ";
return doStringCommand(command);
}
public boolean p2pCancelConnect() {
return doBooleanCommand("P2P_CANCEL");
}
public boolean p2pProvisionDiscovery(WifiP2pConfig config) {
if (config == null) return false;
switch (config.wps.setup) {
case WpsInfo.PBC:
return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " pbc");
case WpsInfo.DISPLAY:
//We are doing display, so provision discovery is keypad
return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " keypad");
case WpsInfo.KEYPAD:
//We are doing keypad, so provision discovery is display
return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " display");
default:
break;
}
return false;
}
public boolean p2pGroupAdd(boolean persistent) {
if (persistent) {
return doBooleanCommand("P2P_GROUP_ADD persistent");
}
return doBooleanCommand("P2P_GROUP_ADD");
}
public boolean p2pGroupAdd(int netId) {
return doBooleanCommand("P2P_GROUP_ADD persistent=" + netId);
}
public boolean p2pGroupRemove(String iface) {
if (TextUtils.isEmpty(iface)) return false;
synchronized (mLock) {
return doBooleanCommandNative("IFNAME=" + iface + " P2P_GROUP_REMOVE " + iface);
}
}
public boolean p2pReject(String deviceAddress) {
return doBooleanCommand("P2P_REJECT " + deviceAddress);
}
/* Invite a peer to a group */
public boolean p2pInvite(WifiP2pGroup group, String deviceAddress) {
if (TextUtils.isEmpty(deviceAddress)) return false;
if (group == null) {
return doBooleanCommand("P2P_INVITE peer=" + deviceAddress);
} else {
return doBooleanCommand("P2P_INVITE group=" + group.getInterface()
+ " peer=" + deviceAddress + " go_dev_addr=" + group.getOwner().deviceAddress);
}
}
/* Reinvoke a persistent connection */
public boolean p2pReinvoke(int netId, String deviceAddress) {
if (TextUtils.isEmpty(deviceAddress) || netId < 0) return false;
return doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + deviceAddress);
}
public String p2pGetSsid(String deviceAddress) {
return p2pGetParam(deviceAddress, "oper_ssid");
}
public String p2pGetDeviceAddress() {
Log.d(TAG, "p2pGetDeviceAddress");
String status = null;
/* Explicitly calling the API without IFNAME= prefix to take care of the devices that
don't have p2p0 interface. Supplicant seems to be returning the correct address anyway. */
synchronized (mLock) {
status = doStringCommandNative("STATUS");
}
String result = "";
if (status != null) {
String[] tokens = status.split("\n");
for (String token : tokens) {
if (token.startsWith("p2p_device_address=")) {
String[] nameValue = token.split("=");
if (nameValue.length != 2)
break;
result = nameValue[1];
}
}
}
Log.d(TAG, "p2pGetDeviceAddress returning " + result);
return result;
}
public int getGroupCapability(String deviceAddress) {
int gc = 0;
if (TextUtils.isEmpty(deviceAddress)) return gc;
String peerInfo = p2pPeer(deviceAddress);
if (TextUtils.isEmpty(peerInfo)) return gc;
String[] tokens = peerInfo.split("\n");
for (String token : tokens) {
if (token.startsWith("group_capab=")) {
String[] nameValue = token.split("=");
if (nameValue.length != 2) break;
try {
return Integer.decode(nameValue[1]);
} catch(NumberFormatException e) {
return gc;
}
}
}
return gc;
}
public String p2pPeer(String deviceAddress) {
return doStringCommand("P2P_PEER " + deviceAddress);
}
private String p2pGetParam(String deviceAddress, String key) {
if (deviceAddress == null) return null;
String peerInfo = p2pPeer(deviceAddress);
if (peerInfo == null) return null;
String[] tokens= peerInfo.split("\n");
key += "=";
for (String token : tokens) {
if (token.startsWith(key)) {
String[] nameValue = token.split("=");
if (nameValue.length != 2) break;
return nameValue[1];
}
}
return null;
}
public boolean p2pServiceAdd(WifiP2pServiceInfo servInfo) {
/*
* P2P_SERVICE_ADD bonjour <query hexdump> <RDATA hexdump>
* P2P_SERVICE_ADD upnp <version hex> <service>
*
* e.g)
* [Bonjour]
* # IP Printing over TCP (PTR) (RDATA=MyPrinter._ipp._tcp.local.)
* P2P_SERVICE_ADD bonjour 045f697070c00c000c01 094d795072696e746572c027
* # IP Printing over TCP (TXT) (RDATA=txtvers=1,pdl=application/postscript)
* P2P_SERVICE_ADD bonjour 096d797072696e746572045f697070c00c001001
* 09747874766572733d311a70646c3d6170706c69636174696f6e2f706f7374736372797074
*
* [UPnP]
* P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012
* P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::upnp:rootdevice
* P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::urn:schemas-upnp
* -org:device:InternetGatewayDevice:1
* P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9322-123456789012::urn:schemas-upnp
* -org:service:ContentDirectory:2
*/
for (String s : servInfo.getSupplicantQueryList()) {
String command = "P2P_SERVICE_ADD";
command += (" " + s);
if (!doBooleanCommand(command)) {
return false;
}
}
return true;
}
public boolean p2pServiceDel(WifiP2pServiceInfo servInfo) {
/*
* P2P_SERVICE_DEL bonjour <query hexdump>
* P2P_SERVICE_DEL upnp <version hex> <service>
*/
for (String s : servInfo.getSupplicantQueryList()) {
String command = "P2P_SERVICE_DEL ";
String[] data = s.split(" ");
if (data.length < 2) {
return false;
}
if ("upnp".equals(data[0])) {
command += s;
} else if ("bonjour".equals(data[0])) {
command += data[0];
command += (" " + data[1]);
} else {
return false;
}
if (!doBooleanCommand(command)) {
return false;
}
}
return true;
}
public boolean p2pServiceFlush() {
return doBooleanCommand("P2P_SERVICE_FLUSH");
}
public String p2pServDiscReq(String addr, String query) {
String command = "P2P_SERV_DISC_REQ";
command += (" " + addr);
command += (" " + query);
return doStringCommand(command);
}
public boolean p2pServDiscCancelReq(String id) {
return doBooleanCommand("P2P_SERV_DISC_CANCEL_REQ " + id);
}
/* Set the current mode of miracast operation.
* 0 = disabled
* 1 = operating as source
* 2 = operating as sink
*/
public void setMiracastMode(int mode) {
// Note: optional feature on the driver. It is ok for this to fail.
doBooleanCommand("DRIVER MIRACAST " + mode);
}
public boolean fetchAnqp(String bssid, String subtypes) {
return doBooleanCommand("ANQP_GET " + bssid + " " + subtypes);
}
/* WIFI HAL support */
private static final String TAG = "WifiNative-HAL";
private static long sWifiHalHandle = 0; /* used by JNI to save wifi_handle */
private static long[] sWifiIfaceHandles = null; /* used by JNI to save interface handles */
private static int sWlan0Index = -1;
private static int sP2p0Index = -1;
private static boolean sHalIsStarted = false;
private static boolean sHalFailed = false;
private static native boolean startHalNative();
private static native void stopHalNative();
private static native void waitForHalEventNative();
private static class MonitorThread extends Thread {
public void run() {
Log.i(TAG, "Waiting for HAL events mWifiHalHandle=" + Long.toString(sWifiHalHandle));
waitForHalEventNative();
}
}
synchronized public static boolean startHal() {
Log.i(TAG, "startHal");
synchronized (mLock) {
if (sHalIsStarted)
return true;
if (sHalFailed)
return false;
if (startHalNative() && (getInterfaces() != 0) && (sWlan0Index != -1)) {
new MonitorThread().start();
sHalIsStarted = true;
return true;
} else {
Log.i(TAG, "Could not start hal");
sHalIsStarted = false;
sHalFailed = true;
return false;
}
}
}
synchronized public static void stopHal() {
stopHalNative();
}
private static native int getInterfacesNative();
synchronized public static int getInterfaces() {
synchronized (mLock) {
if (sWifiIfaceHandles == null) {
int num = getInterfacesNative();
int wifi_num = 0;
for (int i = 0; i < num; i++) {
String name = getInterfaceNameNative(i);
Log.i(TAG, "interface[" + i + "] = " + name);
if (name.equals("wlan0")) {
sWlan0Index = i;
wifi_num++;
} else if (name.equals("p2p0")) {
sP2p0Index = i;
wifi_num++;
}
}
return wifi_num;
} else {
return sWifiIfaceHandles.length;
}
}
}
private static native String getInterfaceNameNative(int index);
synchronized public static String getInterfaceName(int index) {
return getInterfaceNameNative(index);
}
public static class ScanCapabilities {
public int max_scan_cache_size; // in number of scan results??
public int max_scan_buckets;
public int max_ap_cache_per_scan;
public int max_rssi_sample_size;
public int max_scan_reporting_threshold; // in number of scan results??
public int max_hotlist_aps;
public int max_significant_wifi_change_aps;
}
public static boolean getScanCapabilities(ScanCapabilities capabilities) {
return getScanCapabilitiesNative(sWlan0Index, capabilities);
}
private static native boolean getScanCapabilitiesNative(
int iface, ScanCapabilities capabilities);
private static native boolean startScanNative(int iface, int id, ScanSettings settings);
private static native boolean stopScanNative(int iface, int id);
private static native ScanResult[] getScanResultsNative(int iface, boolean flush);
private static native WifiLinkLayerStats getWifiLinkLayerStatsNative(int iface);
public static class ChannelSettings {
int frequency;
int dwell_time_ms;
boolean passive;
}
public static class BucketSettings {
int bucket;
int band;
int period_ms;
int report_events;
int num_channels;
ChannelSettings channels[];
}
public static class ScanSettings {
int base_period_ms;
int max_ap_per_scan;
int report_threshold;
int num_buckets;
BucketSettings buckets[];
}
public static interface ScanEventHandler {
void onScanResultsAvailable();
void onFullScanResult(ScanResult fullScanResult);
void onSingleScanComplete();
void onScanPaused();
void onScanRestarted();
}
synchronized static void onScanResultsAvailable(int id) {
if (sScanEventHandler != null) {
sScanEventHandler.onScanResultsAvailable();
}
}
/* scan status, keep these values in sync with gscan.h */
private static int WIFI_SCAN_BUFFER_FULL = 0;
private static int WIFI_SCAN_COMPLETE = 1;
synchronized static void onScanStatus(int status) {
Log.i(TAG, "Got a scan status changed event, status = " + status);
if (status == WIFI_SCAN_BUFFER_FULL) {
/* we have a separate event to take care of this */
} else if (status == WIFI_SCAN_COMPLETE) {
if (sScanEventHandler != null) {
sScanEventHandler.onSingleScanComplete();
}
}
}
synchronized static void onFullScanResult(int id, ScanResult result, byte bytes[]) {
if (DBG) Log.i(TAG, "Got a full scan results event, ssid = " + result.SSID + ", " +
"num = " + bytes.length);
if (sScanEventHandler == null) {
return;
}
int num = 0;
for (int i = 0; i < bytes.length; ) {
int type = bytes[i] & 0xFF;
int len = bytes[i + 1] & 0xFF;
if (i + len + 2 > bytes.length) {
Log.w(TAG, "bad length " + len + " of IE " + type + " from " + result.BSSID);
Log.w(TAG, "ignoring the rest of the IEs");
break;
}
num++;
i += len + 2;
if (DBG) Log.i(TAG, "bytes[" + i + "] = [" + type + ", " + len + "]" + ", " +
"next = " + i);
}
ScanResult.InformationElement elements[] = new ScanResult.InformationElement[num];
for (int i = 0, index = 0; i < num; i++) {
int type = bytes[index] & 0xFF;
int len = bytes[index + 1] & 0xFF;
if (DBG) Log.i(TAG, "index = " + index + ", type = " + type + ", len = " + len);
ScanResult.InformationElement elem = new ScanResult.InformationElement();
elem.id = type;
elem.bytes = new byte[len];
for (int j = 0; j < len; j++) {
elem.bytes[j] = bytes[index + j + 2];
}
elements[i] = elem;
index += (len + 2);
}
result.informationElements = elements;
sScanEventHandler.onFullScanResult(result);
}
private static int sScanCmdId = 0;
private static ScanEventHandler sScanEventHandler;
private static ScanSettings sScanSettings;
synchronized public static boolean startScan(
ScanSettings settings, ScanEventHandler eventHandler) {
synchronized (mLock) {
if (sScanCmdId != 0) {
stopScan();
} else if (sScanSettings != null || sScanEventHandler != null) {
/* current scan is paused; no need to stop it */
}
sScanCmdId = getNewCmdIdLocked();
sScanSettings = settings;
sScanEventHandler = eventHandler;
if (startScanNative(sWlan0Index, sScanCmdId, settings) == false) {
sScanEventHandler = null;
sScanSettings = null;
return false;
}
return true;
}
}
synchronized public static void stopScan() {
synchronized (mLock) {
stopScanNative(sWlan0Index, sScanCmdId);
sScanSettings = null;
sScanEventHandler = null;
sScanCmdId = 0;
}
}
synchronized public static void pauseScan() {
synchronized (mLock) {
if (sScanCmdId != 0 && sScanSettings != null && sScanEventHandler != null) {
Log.d(TAG, "Pausing scan");
stopScanNative(sWlan0Index, sScanCmdId);
sScanCmdId = 0;
sScanEventHandler.onScanPaused();
}
}
}
synchronized public static void restartScan() {
synchronized (mLock) {
if (sScanCmdId == 0 && sScanSettings != null && sScanEventHandler != null) {
Log.d(TAG, "Restarting scan");
startScan(sScanSettings, sScanEventHandler);
sScanEventHandler.onScanRestarted();
}
}
}
synchronized public static ScanResult[] getScanResults() {
synchronized (mLock) {
return getScanResultsNative(sWlan0Index, /* flush = */ false);
}
}
public static interface HotlistEventHandler {
void onHotlistApFound (ScanResult[]result);
}
private static int sHotlistCmdId = 0;
private static HotlistEventHandler sHotlistEventHandler;
private native static boolean setHotlistNative(int iface, int id,
WifiScanner.HotlistSettings settings);
private native static boolean resetHotlistNative(int iface, int id);
synchronized public static boolean setHotlist(WifiScanner.HotlistSettings settings,
HotlistEventHandler eventHandler) {
synchronized (mLock) {
if (sHotlistCmdId != 0) {
return false;
} else {
sHotlistCmdId = getNewCmdIdLocked();
}
sHotlistEventHandler = eventHandler;
if (setHotlistNative(sWlan0Index, sScanCmdId, settings) == false) {
sHotlistEventHandler = null;
return false;
}
return true;
}
}
synchronized public static void resetHotlist() {
synchronized (mLock) {
if (sHotlistCmdId != 0) {
resetHotlistNative(sWlan0Index, sHotlistCmdId);
sHotlistCmdId = 0;
sHotlistEventHandler = null;
}
}
}
synchronized public static void onHotlistApFound(int id, ScanResult[] results) {
synchronized (mLock) {
if (sHotlistCmdId != 0) {
sHotlistEventHandler.onHotlistApFound(results);
} else {
/* this can happen because of race conditions */
Log.d(TAG, "Ignoring hotlist AP found change");
}
}
}
public static interface SignificantWifiChangeEventHandler {
void onChangesFound(ScanResult[] result);
}
private static SignificantWifiChangeEventHandler sSignificantWifiChangeHandler;
private static int sSignificantWifiChangeCmdId;
private static native boolean trackSignificantWifiChangeNative(
int iface, int id, WifiScanner.WifiChangeSettings settings);
private static native boolean untrackSignificantWifiChangeNative(int iface, int id);
synchronized public static boolean trackSignificantWifiChange(
WifiScanner.WifiChangeSettings settings, SignificantWifiChangeEventHandler handler) {
synchronized (mLock) {
if (sSignificantWifiChangeCmdId != 0) {
return false;
} else {
sSignificantWifiChangeCmdId = getNewCmdIdLocked();
}
sSignificantWifiChangeHandler = handler;
if (trackSignificantWifiChangeNative(sWlan0Index, sScanCmdId, settings) == false) {
sSignificantWifiChangeHandler = null;
return false;
}
return true;
}
}
synchronized static void untrackSignificantWifiChange() {
synchronized (mLock) {
if (sSignificantWifiChangeCmdId != 0) {
untrackSignificantWifiChangeNative(sWlan0Index, sSignificantWifiChangeCmdId);
sSignificantWifiChangeCmdId = 0;
sSignificantWifiChangeHandler = null;
}
}
}
synchronized static void onSignificantWifiChange(int id, ScanResult[] results) {
synchronized (mLock) {
if (sSignificantWifiChangeCmdId != 0) {
sSignificantWifiChangeHandler.onChangesFound(results);
} else {
/* this can happen because of race conditions */
Log.d(TAG, "Ignoring significant wifi change");
}
}
}
synchronized public static WifiLinkLayerStats getWifiLinkLayerStats(String iface) {
// TODO: use correct iface name to Index translation
if (iface == null) return null;
synchronized (mLock) {
if (!sHalIsStarted)
startHal();
if (sHalIsStarted)
return getWifiLinkLayerStatsNative(sWlan0Index);
}
return null;
}
/*
* NFC-related calls
*/
public String getNfcWpsConfigurationToken(int netId) {
return doStringCommand("WPS_NFC_CONFIG_TOKEN WPS " + netId);
}
public String getNfcHandoverRequest() {
return doStringCommand("NFC_GET_HANDOVER_REQ NDEF P2P-CR");
}
public String getNfcHandoverSelect() {
return doStringCommand("NFC_GET_HANDOVER_SEL NDEF P2P-CR");
}
public boolean initiatorReportNfcHandover(String selectMessage) {
return doBooleanCommand("NFC_REPORT_HANDOVER INIT P2P 00 " + selectMessage);
}
public boolean responderReportNfcHandover(String requestMessage) {
return doBooleanCommand("NFC_REPORT_HANDOVER RESP P2P " + requestMessage + " 00");
}
public static native int getSupportedFeatureSetNative(int iface);
synchronized public static int getSupportedFeatureSet() {
return getSupportedFeatureSetNative(sWlan0Index);
}
/* Rtt related commands/events */
public static interface RttEventHandler {
void onRttResults(RttManager.RttResult[] result);
}
private static RttEventHandler sRttEventHandler;
private static int sRttCmdId;
synchronized private static void onRttResults(int id, RttManager.RttResult[] results) {
if (id == sRttCmdId) {
Log.d(TAG, "Received " + results.length + " rtt results");
sRttEventHandler.onRttResults(results);
sRttCmdId = 0;
} else {
Log.d(TAG, "Received event for unknown cmd = " + id + ", current id = " + sRttCmdId);
}
}
private static native boolean requestRangeNative(
int iface, int id, RttManager.RttParams[] params);
private static native boolean cancelRangeRequestNative(
int iface, int id, RttManager.RttParams[] params);
synchronized public static boolean requestRtt(
RttManager.RttParams[] params, RttEventHandler handler) {
synchronized (mLock) {
if (sRttCmdId != 0) {
return false;
} else {
sRttCmdId = getNewCmdIdLocked();
}
sRttEventHandler = handler;
return requestRangeNative(sWlan0Index, sRttCmdId, params);
}
}
synchronized public static boolean cancelRtt(RttManager.RttParams[] params) {
synchronized(mLock) {
if (sRttCmdId == 0) {
return false;
}
if (cancelRangeRequestNative(sWlan0Index, sRttCmdId, params)) {
sRttEventHandler = null;
return true;
} else {
return false;
}
}
}
private static native boolean setScanningMacOuiNative(int iface, byte[] oui);
synchronized public static boolean setScanningMacOui(byte[] oui) {
synchronized (mLock) {
if (startHal()) {
return setScanningMacOuiNative(sWlan0Index, oui);
} else {
return false;
}
}
}
private static native int[] getChannelsForBandNative(
int iface, int band);
synchronized public static int [] getChannelsForBand(int band) {
synchronized (mLock) {
if (startHal()) {
return getChannelsForBandNative(sWlan0Index, band);
} else {
return null;
}
}
}
}
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