WifiNative.java revision a632d8a6edd350c7644b593b18eceaa5b368505b
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.wifi; 18 19import android.net.wifi.BatchedScanSettings; 20import android.net.wifi.ScanResult; 21import android.net.wifi.WifiLinkLayerStats; 22import android.net.wifi.WifiScanner; 23import android.net.wifi.WpsInfo; 24import android.net.wifi.p2p.WifiP2pConfig; 25import android.net.wifi.p2p.WifiP2pGroup; 26import android.os.SystemClock; 27import android.text.TextUtils; 28import android.net.wifi.p2p.nsd.WifiP2pServiceInfo; 29import android.util.LocalLog; 30import android.util.Log; 31 32import java.util.ArrayList; 33import java.util.List; 34import java.util.Locale; 35 36/** 37 * Native calls for bring up/shut down of the supplicant daemon and for 38 * sending requests to the supplicant daemon 39 * 40 * waitForEvent() is called on the monitor thread for events. All other methods 41 * must be serialized from the framework. 42 * 43 * {@hide} 44 */ 45public class WifiNative { 46 47 private static boolean DBG = false; 48 private final String mTAG; 49 private static final int DEFAULT_GROUP_OWNER_INTENT = 6; 50 51 static final int BLUETOOTH_COEXISTENCE_MODE_ENABLED = 0; 52 static final int BLUETOOTH_COEXISTENCE_MODE_DISABLED = 1; 53 static final int BLUETOOTH_COEXISTENCE_MODE_SENSE = 2; 54 55 static final int SCAN_WITHOUT_CONNECTION_SETUP = 1; 56 static final int SCAN_WITH_CONNECTION_SETUP = 2; 57 58 // Hold this lock before calling supplicant - it is required to 59 // mutually exclude access from Wifi and P2p state machines 60 static final Object mLock = new Object(); 61 62 public final String mInterfaceName; 63 public final String mInterfacePrefix; 64 65 private boolean mSuspendOptEnabled = false; 66 67 /* Register native functions */ 68 69 static { 70 /* Native functions are defined in libwifi-service.so */ 71 System.loadLibrary("wifi-service"); 72 registerNatives(); 73 } 74 75 private static native int registerNatives(); 76 77 public native static boolean loadDriver(); 78 79 public native static boolean isDriverLoaded(); 80 81 public native static boolean unloadDriver(); 82 83 public native static boolean startSupplicant(boolean p2pSupported); 84 85 /* Sends a kill signal to supplicant. To be used when we have lost connection 86 or when the supplicant is hung */ 87 public native static boolean killSupplicant(boolean p2pSupported); 88 89 private native boolean connectToSupplicantNative(); 90 91 private native void closeSupplicantConnectionNative(); 92 93 /** 94 * Wait for the supplicant to send an event, returning the event string. 95 * @return the event string sent by the supplicant. 96 */ 97 private native String waitForEventNative(); 98 99 private native boolean doBooleanCommandNative(String command); 100 101 private native int doIntCommandNative(String command); 102 103 private native String doStringCommandNative(String command); 104 105 public WifiNative(String interfaceName) { 106 mInterfaceName = interfaceName; 107 mTAG = "WifiNative-" + interfaceName; 108 if (!interfaceName.equals("p2p0")) { 109 mInterfacePrefix = "IFNAME=" + interfaceName + " "; 110 } else { 111 // commands for p2p0 interface don't need prefix 112 mInterfacePrefix = ""; 113 } 114 } 115 116 void enableVerboseLogging(int verbose) { 117 if (verbose > 0) { 118 DBG = true; 119 } else { 120 DBG = false; 121 } 122 } 123 124 private static final LocalLog mLocalLog = new LocalLog(1024); 125 126 // hold mLock before accessing mCmdIdLock 127 private static int sCmdId; 128 129 public LocalLog getLocalLog() { 130 return mLocalLog; 131 } 132 133 private static int getNewCmdIdLocked() { 134 return sCmdId++; 135 } 136 137 private void localLog(String s) { 138 if (mLocalLog != null) 139 mLocalLog.log(mInterfaceName + ": " + s); 140 } 141 142 public boolean connectToSupplicant() { 143 // No synchronization necessary .. it is implemented in WifiMonitor 144 localLog(mInterfacePrefix + "connectToSupplicant"); 145 return connectToSupplicantNative(); 146 } 147 148 public void closeSupplicantConnection() { 149 localLog(mInterfacePrefix + "closeSupplicantConnection"); 150 closeSupplicantConnectionNative(); 151 } 152 153 public String waitForEvent() { 154 // No synchronization necessary .. it is implemented in WifiMonitor 155 return waitForEventNative(); 156 } 157 158 private boolean doBooleanCommand(String command) { 159 if (DBG) Log.d(mTAG, "doBoolean: " + command); 160 synchronized (mLock) { 161 int cmdId = getNewCmdIdLocked(); 162 localLog(cmdId + "->" + mInterfacePrefix + command); 163 boolean result = doBooleanCommandNative(mInterfacePrefix + command); 164 localLog(cmdId + "<-" + result); 165 if (DBG) Log.d(mTAG, command + ": returned " + result); 166 return result; 167 } 168 } 169 170 private int doIntCommand(String command) { 171 if (DBG) Log.d(mTAG, "doInt: " + command); 172 synchronized (mLock) { 173 int cmdId = getNewCmdIdLocked(); 174 localLog(cmdId + "->" + mInterfacePrefix + command); 175 int result = doIntCommandNative(mInterfacePrefix + command); 176 localLog(cmdId + "<-" + result); 177 if (DBG) Log.d(mTAG, " returned " + result); 178 return result; 179 } 180 } 181 182 private String doStringCommand(String command) { 183 if (DBG) { 184 //GET_NETWORK commands flood the logs 185 if (!command.startsWith("GET_NETWORK")) { 186 Log.d(mTAG, "doString: [" + command + "]"); 187 } 188 } 189 synchronized (mLock) { 190 int cmdId = getNewCmdIdLocked(); 191 localLog(cmdId + "->" + mInterfacePrefix + command); 192 String result = doStringCommandNative(mInterfacePrefix + command); 193 if (result == null) { 194 if (DBG) Log.d(mTAG, "doStringCommandNative no result"); 195 } else { 196 localLog(cmdId + "<-" + result); 197 if (DBG) Log.d(mTAG, " returned " + result.replace("\n", " ")); 198 } 199 return result; 200 } 201 } 202 203 private String doStringCommandWithoutLogging(String command) { 204 if (DBG) { 205 //GET_NETWORK commands flood the logs 206 if (!command.startsWith("GET_NETWORK")) { 207 Log.d(mTAG, "doString: [" + command + "]"); 208 } 209 } 210 synchronized (mLock) { 211 return doStringCommandNative(mInterfacePrefix + command); 212 } 213 } 214 215 public boolean ping() { 216 String pong = doStringCommand("PING"); 217 return (pong != null && pong.equals("PONG")); 218 } 219 220 public void setSupplicantLogLevel(String level) { 221 doStringCommand("LOG_LEVEL " + level); 222 } 223 224 public String getFreqCapability() { 225 return doStringCommand("GET_CAPABILITY freq"); 226 } 227 228 public boolean scan(int type, String freqList) { 229 if (type == SCAN_WITHOUT_CONNECTION_SETUP) { 230 if (freqList == null) return doBooleanCommand("SCAN TYPE=ONLY"); 231 else return doBooleanCommand("SCAN TYPE=ONLY freq=" + freqList); 232 } else if (type == SCAN_WITH_CONNECTION_SETUP) { 233 if (freqList == null) return doBooleanCommand("SCAN"); 234 else return doBooleanCommand("SCAN freq=" + freqList); 235 } else { 236 throw new IllegalArgumentException("Invalid scan type"); 237 } 238 } 239 240 /* Does a graceful shutdown of supplicant. Is a common stop function for both p2p and sta. 241 * 242 * Note that underneath we use a harsh-sounding "terminate" supplicant command 243 * for a graceful stop and a mild-sounding "stop" interface 244 * to kill the process 245 */ 246 public boolean stopSupplicant() { 247 return doBooleanCommand("TERMINATE"); 248 } 249 250 public String listNetworks() { 251 return doStringCommand("LIST_NETWORKS"); 252 } 253 254 public int addNetwork() { 255 return doIntCommand("ADD_NETWORK"); 256 } 257 258 public boolean setNetworkVariable(int netId, String name, String value) { 259 if (TextUtils.isEmpty(name) || TextUtils.isEmpty(value)) return false; 260 return doBooleanCommand("SET_NETWORK " + netId + " " + name + " " + value); 261 } 262 263 public String getNetworkVariable(int netId, String name) { 264 if (TextUtils.isEmpty(name)) return null; 265 266 // GET_NETWORK will likely flood the logs ... 267 return doStringCommandWithoutLogging("GET_NETWORK " + netId + " " + name); 268 } 269 270 public boolean removeNetwork(int netId) { 271 return doBooleanCommand("REMOVE_NETWORK " + netId); 272 } 273 274 275 private void logDbg(String debug) { 276 long now = SystemClock.elapsedRealtimeNanos(); 277 String ts = String.format("[%,d us] ", now/1000); 278 Log.e("WifiNative: ", ts+debug+ " stack:" 279 + Thread.currentThread().getStackTrace()[2].getMethodName() +" - " 280 + Thread.currentThread().getStackTrace()[3].getMethodName() +" - " 281 + Thread.currentThread().getStackTrace()[4].getMethodName() +" - " 282 + Thread.currentThread().getStackTrace()[5].getMethodName()+" - " 283 + Thread.currentThread().getStackTrace()[6].getMethodName()); 284 285 } 286 public boolean enableNetwork(int netId, boolean disableOthers) { 287 if (DBG) logDbg("enableNetwork nid=" + Integer.toString(netId) 288 + " disableOthers=" + disableOthers); 289 if (disableOthers) { 290 return doBooleanCommand("SELECT_NETWORK " + netId); 291 } else { 292 return doBooleanCommand("ENABLE_NETWORK " + netId); 293 } 294 } 295 296 public boolean disableNetwork(int netId) { 297 if (DBG) logDbg("disableNetwork nid=" + Integer.toString(netId)); 298 return doBooleanCommand("DISABLE_NETWORK " + netId); 299 } 300 301 public boolean reconnect() { 302 if (DBG) logDbg("RECONNECT "); 303 return doBooleanCommand("RECONNECT"); 304 } 305 306 public boolean reassociate() { 307 if (DBG) logDbg("REASSOCIATE "); 308 return doBooleanCommand("REASSOCIATE"); 309 } 310 311 public boolean disconnect() { 312 if (DBG) logDbg("DISCONNECT "); 313 return doBooleanCommand("DISCONNECT"); 314 } 315 316 public String status() { 317 return doStringCommand("STATUS"); 318 } 319 320 public String getMacAddress() { 321 //Macaddr = XX.XX.XX.XX.XX.XX 322 String ret = doStringCommand("DRIVER MACADDR"); 323 if (!TextUtils.isEmpty(ret)) { 324 String[] tokens = ret.split(" = "); 325 if (tokens.length == 2) return tokens[1]; 326 } 327 return null; 328 } 329 330 /** 331 * Format of results: 332 * ================= 333 * id=1 334 * bssid=68:7f:74:d7:1b:6e 335 * freq=2412 336 * level=-43 337 * tsf=1344621975160944 338 * age=2623 339 * flags=[WPA2-PSK-CCMP][WPS][ESS] 340 * ssid=zubyb 341 * ==== 342 * 343 * RANGE=ALL gets all scan results 344 * RANGE=ID- gets results from ID 345 * MASK=<N> see wpa_supplicant/src/common/wpa_ctrl.h for details 346 */ 347 public String scanResults(int sid) { 348 return doStringCommandWithoutLogging("BSS RANGE=" + sid + "- MASK=0x21987"); 349 } 350 351 /** 352 * Format of result: 353 * id=1016 354 * bssid=00:03:7f:40:84:10 355 * freq=2462 356 * beacon_int=200 357 * capabilities=0x0431 358 * qual=0 359 * noise=0 360 * level=-46 361 * tsf=0000002669008476 362 * age=5 363 * ie=00105143412d485332302d52322d54455354010882848b960c12182403010b0706555... 364 * flags=[WPA2-EAP-CCMP][ESS][P2P][HS20] 365 * ssid=QCA-HS20-R2-TEST 366 * p2p_device_name= 367 * p2p_config_methods=0x0 368 * anqp_venue_name=02083d656e6757692d466920416c6c69616e63650a3239383920436f... 369 * anqp_network_auth_type=010000 370 * anqp_roaming_consortium=03506f9a05001bc504bd 371 * anqp_ip_addr_type_availability=0c 372 * anqp_nai_realm=0200300000246d61696c2e6578616d706c652e636f6d3b636973636f2... 373 * anqp_3gpp=000600040132f465 374 * anqp_domain_name=0b65786d61706c652e636f6d 375 * hs20_operator_friendly_name=11656e6757692d466920416c6c69616e63650e636869... 376 * hs20_wan_metrics=01c40900008001000000000a00 377 * hs20_connection_capability=0100000006140001061600000650000106bb010106bb0... 378 * hs20_osu_providers_list=0b5143412d4f53552d425353010901310015656e6757692d... 379 */ 380 public String scanResult(String bssid) { 381 return doStringCommand("BSS " + bssid); 382 } 383 384 /** 385 * Format of command 386 * DRIVER WLS_BATCHING SET SCANFREQ=x MSCAN=r BESTN=y CHANNEL=<z, w, t> RTT=s 387 * where x is an ascii representation of an integer number of seconds between scans 388 * r is an ascii representation of an integer number of scans per batch 389 * y is an ascii representation of an integer number of the max AP to remember per scan 390 * z, w, t represent a 1..n size list of channel numbers and/or 'A', 'B' values 391 * indicating entire ranges of channels 392 * s is an ascii representation of an integer number of highest-strength AP 393 * for which we'd like approximate distance reported 394 * 395 * The return value is an ascii integer representing a guess of the number of scans 396 * the firmware can remember before it runs out of buffer space or -1 on error 397 */ 398 public String setBatchedScanSettings(BatchedScanSettings settings) { 399 if (settings == null) { 400 return doStringCommand("DRIVER WLS_BATCHING STOP"); 401 } 402 String cmd = "DRIVER WLS_BATCHING SET SCANFREQ=" + settings.scanIntervalSec; 403 cmd += " MSCAN=" + settings.maxScansPerBatch; 404 if (settings.maxApPerScan != BatchedScanSettings.UNSPECIFIED) { 405 cmd += " BESTN=" + settings.maxApPerScan; 406 } 407 if (settings.channelSet != null && !settings.channelSet.isEmpty()) { 408 cmd += " CHANNEL=<"; 409 int i = 0; 410 for (String channel : settings.channelSet) { 411 cmd += (i > 0 ? "," : "") + channel; 412 ++i; 413 } 414 cmd += ">"; 415 } 416 if (settings.maxApForDistance != BatchedScanSettings.UNSPECIFIED) { 417 cmd += " RTT=" + settings.maxApForDistance; 418 } 419 return doStringCommand(cmd); 420 } 421 422 public String getBatchedScanResults() { 423 return doStringCommand("DRIVER WLS_BATCHING GET"); 424 } 425 426 public boolean startDriver() { 427 return doBooleanCommand("DRIVER START"); 428 } 429 430 public boolean stopDriver() { 431 return doBooleanCommand("DRIVER STOP"); 432 } 433 434 435 /** 436 * Start filtering out Multicast V4 packets 437 * @return {@code true} if the operation succeeded, {@code false} otherwise 438 * 439 * Multicast filtering rules work as follows: 440 * 441 * The driver can filter multicast (v4 and/or v6) and broadcast packets when in 442 * a power optimized mode (typically when screen goes off). 443 * 444 * In order to prevent the driver from filtering the multicast/broadcast packets, we have to 445 * add a DRIVER RXFILTER-ADD rule followed by DRIVER RXFILTER-START to make the rule effective 446 * 447 * DRIVER RXFILTER-ADD Num 448 * where Num = 0 - Unicast, 1 - Broadcast, 2 - Mutil4 or 3 - Multi6 449 * 450 * and DRIVER RXFILTER-START 451 * In order to stop the usage of these rules, we do 452 * 453 * DRIVER RXFILTER-STOP 454 * DRIVER RXFILTER-REMOVE Num 455 * where Num is as described for RXFILTER-ADD 456 * 457 * The SETSUSPENDOPT driver command overrides the filtering rules 458 */ 459 public boolean startFilteringMulticastV4Packets() { 460 return doBooleanCommand("DRIVER RXFILTER-STOP") 461 && doBooleanCommand("DRIVER RXFILTER-REMOVE 2") 462 && doBooleanCommand("DRIVER RXFILTER-START"); 463 } 464 465 /** 466 * Stop filtering out Multicast V4 packets. 467 * @return {@code true} if the operation succeeded, {@code false} otherwise 468 */ 469 public boolean stopFilteringMulticastV4Packets() { 470 return doBooleanCommand("DRIVER RXFILTER-STOP") 471 && doBooleanCommand("DRIVER RXFILTER-ADD 2") 472 && doBooleanCommand("DRIVER RXFILTER-START"); 473 } 474 475 /** 476 * Start filtering out Multicast V6 packets 477 * @return {@code true} if the operation succeeded, {@code false} otherwise 478 */ 479 public boolean startFilteringMulticastV6Packets() { 480 return doBooleanCommand("DRIVER RXFILTER-STOP") 481 && doBooleanCommand("DRIVER RXFILTER-REMOVE 3") 482 && doBooleanCommand("DRIVER RXFILTER-START"); 483 } 484 485 /** 486 * Stop filtering out Multicast V6 packets. 487 * @return {@code true} if the operation succeeded, {@code false} otherwise 488 */ 489 public boolean stopFilteringMulticastV6Packets() { 490 return doBooleanCommand("DRIVER RXFILTER-STOP") 491 && doBooleanCommand("DRIVER RXFILTER-ADD 3") 492 && doBooleanCommand("DRIVER RXFILTER-START"); 493 } 494 495 public int getBand() { 496 String ret = doStringCommand("DRIVER GETBAND"); 497 if (!TextUtils.isEmpty(ret)) { 498 //reply is "BAND X" where X is the band 499 String[] tokens = ret.split(" "); 500 try { 501 if (tokens.length == 2) return Integer.parseInt(tokens[1]); 502 } catch (NumberFormatException e) { 503 return -1; 504 } 505 } 506 return -1; 507 } 508 509 public boolean setBand(int band) { 510 return doBooleanCommand("DRIVER SETBAND " + band); 511 } 512 513 /** 514 * Sets the bluetooth coexistence mode. 515 * 516 * @param mode One of {@link #BLUETOOTH_COEXISTENCE_MODE_DISABLED}, 517 * {@link #BLUETOOTH_COEXISTENCE_MODE_ENABLED}, or 518 * {@link #BLUETOOTH_COEXISTENCE_MODE_SENSE}. 519 * @return Whether the mode was successfully set. 520 */ 521 public boolean setBluetoothCoexistenceMode(int mode) { 522 return doBooleanCommand("DRIVER BTCOEXMODE " + mode); 523 } 524 525 /** 526 * Enable or disable Bluetooth coexistence scan mode. When this mode is on, 527 * some of the low-level scan parameters used by the driver are changed to 528 * reduce interference with A2DP streaming. 529 * 530 * @param isSet whether to enable or disable this mode 531 * @return {@code true} if the command succeeded, {@code false} otherwise. 532 */ 533 public boolean setBluetoothCoexistenceScanMode(boolean setCoexScanMode) { 534 if (setCoexScanMode) { 535 return doBooleanCommand("DRIVER BTCOEXSCAN-START"); 536 } else { 537 return doBooleanCommand("DRIVER BTCOEXSCAN-STOP"); 538 } 539 } 540 541 public void enableSaveConfig() { 542 doBooleanCommand("SET update_config 1"); 543 } 544 545 public boolean saveConfig() { 546 return doBooleanCommand("SAVE_CONFIG"); 547 } 548 549 public boolean addToBlacklist(String bssid) { 550 if (TextUtils.isEmpty(bssid)) return false; 551 return doBooleanCommand("BLACKLIST " + bssid); 552 } 553 554 public boolean clearBlacklist() { 555 return doBooleanCommand("BLACKLIST clear"); 556 } 557 558 public boolean setSuspendOptimizations(boolean enabled) { 559 // if (mSuspendOptEnabled == enabled) return true; 560 mSuspendOptEnabled = enabled; 561 562 Log.e("native", "do suspend " + enabled); 563 if (enabled) { 564 return doBooleanCommand("DRIVER SETSUSPENDMODE 1"); 565 } else { 566 return doBooleanCommand("DRIVER SETSUSPENDMODE 0"); 567 } 568 } 569 570 public boolean setCountryCode(String countryCode) { 571 return doBooleanCommand("DRIVER COUNTRY " + countryCode.toUpperCase(Locale.ROOT)); 572 } 573 574 public void enableBackgroundScan(boolean enable) { 575 if (enable) { 576 doBooleanCommand("SET pno 1"); 577 } else { 578 doBooleanCommand("SET pno 0"); 579 } 580 } 581 582 public void enableAutoConnect(boolean enable) { 583 if (enable) { 584 doBooleanCommand("STA_AUTOCONNECT 1"); 585 } else { 586 doBooleanCommand("STA_AUTOCONNECT 0"); 587 } 588 } 589 590 public void setScanInterval(int scanInterval) { 591 doBooleanCommand("SCAN_INTERVAL " + scanInterval); 592 } 593 594 public void startTdls(String macAddr, boolean enable) { 595 if (enable) { 596 doBooleanCommand("TDLS_DISCOVER " + macAddr); 597 doBooleanCommand("TDLS_SETUP " + macAddr); 598 } else { 599 doBooleanCommand("TDLS_TEARDOWN " + macAddr); 600 } 601 } 602 603 /** Example output: 604 * RSSI=-65 605 * LINKSPEED=48 606 * NOISE=9999 607 * FREQUENCY=0 608 */ 609 public String signalPoll() { 610 return doStringCommandWithoutLogging("SIGNAL_POLL"); 611 } 612 613 /** Example outout: 614 * TXGOOD=396 615 * TXBAD=1 616 */ 617 public String pktcntPoll() { 618 return doStringCommand("PKTCNT_POLL"); 619 } 620 621 public void bssFlush() { 622 doBooleanCommand("BSS_FLUSH 0"); 623 } 624 625 public boolean startWpsPbc(String bssid) { 626 if (TextUtils.isEmpty(bssid)) { 627 return doBooleanCommand("WPS_PBC"); 628 } else { 629 return doBooleanCommand("WPS_PBC " + bssid); 630 } 631 } 632 633 public boolean startWpsPbc(String iface, String bssid) { 634 synchronized (mLock) { 635 if (TextUtils.isEmpty(bssid)) { 636 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC"); 637 } else { 638 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC " + bssid); 639 } 640 } 641 } 642 643 public boolean startWpsPinKeypad(String pin) { 644 if (TextUtils.isEmpty(pin)) return false; 645 return doBooleanCommand("WPS_PIN any " + pin); 646 } 647 648 public boolean startWpsPinKeypad(String iface, String pin) { 649 if (TextUtils.isEmpty(pin)) return false; 650 synchronized (mLock) { 651 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PIN any " + pin); 652 } 653 } 654 655 656 public String startWpsPinDisplay(String bssid) { 657 if (TextUtils.isEmpty(bssid)) { 658 return doStringCommand("WPS_PIN any"); 659 } else { 660 return doStringCommand("WPS_PIN " + bssid); 661 } 662 } 663 664 public String startWpsPinDisplay(String iface, String bssid) { 665 synchronized (mLock) { 666 if (TextUtils.isEmpty(bssid)) { 667 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN any"); 668 } else { 669 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN " + bssid); 670 } 671 } 672 } 673 674 /* Configures an access point connection */ 675 public boolean startWpsRegistrar(String bssid, String pin) { 676 if (TextUtils.isEmpty(bssid) || TextUtils.isEmpty(pin)) return false; 677 return doBooleanCommand("WPS_REG " + bssid + " " + pin); 678 } 679 680 public boolean cancelWps() { 681 return doBooleanCommand("WPS_CANCEL"); 682 } 683 684 public boolean setPersistentReconnect(boolean enabled) { 685 int value = (enabled == true) ? 1 : 0; 686 return doBooleanCommand("SET persistent_reconnect " + value); 687 } 688 689 public boolean setDeviceName(String name) { 690 return doBooleanCommand("SET device_name " + name); 691 } 692 693 public boolean setDeviceType(String type) { 694 return doBooleanCommand("SET device_type " + type); 695 } 696 697 public boolean setConfigMethods(String cfg) { 698 return doBooleanCommand("SET config_methods " + cfg); 699 } 700 701 public boolean setManufacturer(String value) { 702 return doBooleanCommand("SET manufacturer " + value); 703 } 704 705 public boolean setModelName(String value) { 706 return doBooleanCommand("SET model_name " + value); 707 } 708 709 public boolean setModelNumber(String value) { 710 return doBooleanCommand("SET model_number " + value); 711 } 712 713 public boolean setSerialNumber(String value) { 714 return doBooleanCommand("SET serial_number " + value); 715 } 716 717 public boolean setP2pSsidPostfix(String postfix) { 718 return doBooleanCommand("SET p2p_ssid_postfix " + postfix); 719 } 720 721 public boolean setP2pGroupIdle(String iface, int time) { 722 synchronized (mLock) { 723 return doBooleanCommandNative("IFNAME=" + iface + " SET p2p_group_idle " + time); 724 } 725 } 726 727 public void setPowerSave(boolean enabled) { 728 if (enabled) { 729 doBooleanCommand("SET ps 1"); 730 } else { 731 doBooleanCommand("SET ps 0"); 732 } 733 } 734 735 public boolean setP2pPowerSave(String iface, boolean enabled) { 736 synchronized (mLock) { 737 if (enabled) { 738 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 1"); 739 } else { 740 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 0"); 741 } 742 } 743 } 744 745 public boolean setWfdEnable(boolean enable) { 746 return doBooleanCommand("SET wifi_display " + (enable ? "1" : "0")); 747 } 748 749 public boolean setWfdDeviceInfo(String hex) { 750 return doBooleanCommand("WFD_SUBELEM_SET 0 " + hex); 751 } 752 753 /** 754 * "sta" prioritizes STA connection over P2P and "p2p" prioritizes 755 * P2P connection over STA 756 */ 757 public boolean setConcurrencyPriority(String s) { 758 return doBooleanCommand("P2P_SET conc_pref " + s); 759 } 760 761 public boolean p2pFind() { 762 return doBooleanCommand("P2P_FIND"); 763 } 764 765 public boolean p2pFind(int timeout) { 766 if (timeout <= 0) { 767 return p2pFind(); 768 } 769 return doBooleanCommand("P2P_FIND " + timeout); 770 } 771 772 public boolean p2pStopFind() { 773 return doBooleanCommand("P2P_STOP_FIND"); 774 } 775 776 public boolean p2pListen() { 777 return doBooleanCommand("P2P_LISTEN"); 778 } 779 780 public boolean p2pListen(int timeout) { 781 if (timeout <= 0) { 782 return p2pListen(); 783 } 784 return doBooleanCommand("P2P_LISTEN " + timeout); 785 } 786 787 public boolean p2pExtListen(boolean enable, int period, int interval) { 788 if (enable && interval < period) { 789 return false; 790 } 791 return doBooleanCommand("P2P_EXT_LISTEN" 792 + (enable ? (" " + period + " " + interval) : "")); 793 } 794 795 public boolean p2pSetChannel(int lc, int oc) { 796 if (DBG) Log.d(mTAG, "p2pSetChannel: lc="+lc+", oc="+oc); 797 798 if (lc >=1 && lc <= 11) { 799 if (!doBooleanCommand("P2P_SET listen_channel " + lc)) { 800 return false; 801 } 802 } else if (lc != 0) { 803 return false; 804 } 805 806 if (oc >= 1 && oc <= 165 ) { 807 int freq = (oc <= 14 ? 2407 : 5000) + oc * 5; 808 return doBooleanCommand("P2P_SET disallow_freq 1000-" 809 + (freq - 5) + "," + (freq + 5) + "-6000"); 810 } else if (oc == 0) { 811 /* oc==0 disables "P2P_SET disallow_freq" (enables all freqs) */ 812 return doBooleanCommand("P2P_SET disallow_freq \"\""); 813 } 814 815 return false; 816 } 817 818 public boolean p2pFlush() { 819 return doBooleanCommand("P2P_FLUSH"); 820 } 821 822 /* p2p_connect <peer device address> <pbc|pin|PIN#> [label|display|keypad] 823 [persistent] [join|auth] [go_intent=<0..15>] [freq=<in MHz>] */ 824 public String p2pConnect(WifiP2pConfig config, boolean joinExistingGroup) { 825 if (config == null) return null; 826 List<String> args = new ArrayList<String>(); 827 WpsInfo wps = config.wps; 828 args.add(config.deviceAddress); 829 830 switch (wps.setup) { 831 case WpsInfo.PBC: 832 args.add("pbc"); 833 break; 834 case WpsInfo.DISPLAY: 835 if (TextUtils.isEmpty(wps.pin)) { 836 args.add("pin"); 837 } else { 838 args.add(wps.pin); 839 } 840 args.add("display"); 841 break; 842 case WpsInfo.KEYPAD: 843 args.add(wps.pin); 844 args.add("keypad"); 845 break; 846 case WpsInfo.LABEL: 847 args.add(wps.pin); 848 args.add("label"); 849 default: 850 break; 851 } 852 853 if (config.netId == WifiP2pGroup.PERSISTENT_NET_ID) { 854 args.add("persistent"); 855 } 856 857 if (joinExistingGroup) { 858 args.add("join"); 859 } else { 860 //TODO: This can be adapted based on device plugged in state and 861 //device battery state 862 int groupOwnerIntent = config.groupOwnerIntent; 863 if (groupOwnerIntent < 0 || groupOwnerIntent > 15) { 864 groupOwnerIntent = DEFAULT_GROUP_OWNER_INTENT; 865 } 866 args.add("go_intent=" + groupOwnerIntent); 867 } 868 869 String command = "P2P_CONNECT "; 870 for (String s : args) command += s + " "; 871 872 return doStringCommand(command); 873 } 874 875 public boolean p2pCancelConnect() { 876 return doBooleanCommand("P2P_CANCEL"); 877 } 878 879 public boolean p2pProvisionDiscovery(WifiP2pConfig config) { 880 if (config == null) return false; 881 882 switch (config.wps.setup) { 883 case WpsInfo.PBC: 884 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " pbc"); 885 case WpsInfo.DISPLAY: 886 //We are doing display, so provision discovery is keypad 887 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " keypad"); 888 case WpsInfo.KEYPAD: 889 //We are doing keypad, so provision discovery is display 890 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " display"); 891 default: 892 break; 893 } 894 return false; 895 } 896 897 public boolean p2pGroupAdd(boolean persistent) { 898 if (persistent) { 899 return doBooleanCommand("P2P_GROUP_ADD persistent"); 900 } 901 return doBooleanCommand("P2P_GROUP_ADD"); 902 } 903 904 public boolean p2pGroupAdd(int netId) { 905 return doBooleanCommand("P2P_GROUP_ADD persistent=" + netId); 906 } 907 908 public boolean p2pGroupRemove(String iface) { 909 if (TextUtils.isEmpty(iface)) return false; 910 synchronized (mLock) { 911 return doBooleanCommandNative("IFNAME=" + iface + " P2P_GROUP_REMOVE " + iface); 912 } 913 } 914 915 public boolean p2pReject(String deviceAddress) { 916 return doBooleanCommand("P2P_REJECT " + deviceAddress); 917 } 918 919 /* Invite a peer to a group */ 920 public boolean p2pInvite(WifiP2pGroup group, String deviceAddress) { 921 if (TextUtils.isEmpty(deviceAddress)) return false; 922 923 if (group == null) { 924 return doBooleanCommand("P2P_INVITE peer=" + deviceAddress); 925 } else { 926 return doBooleanCommand("P2P_INVITE group=" + group.getInterface() 927 + " peer=" + deviceAddress + " go_dev_addr=" + group.getOwner().deviceAddress); 928 } 929 } 930 931 /* Reinvoke a persistent connection */ 932 public boolean p2pReinvoke(int netId, String deviceAddress) { 933 if (TextUtils.isEmpty(deviceAddress) || netId < 0) return false; 934 935 return doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + deviceAddress); 936 } 937 938 public String p2pGetSsid(String deviceAddress) { 939 return p2pGetParam(deviceAddress, "oper_ssid"); 940 } 941 942 public String p2pGetDeviceAddress() { 943 Log.d(TAG, "p2pGetDeviceAddress"); 944 945 /* Explicitly calling the API without IFNAME= prefix to take care of the devices that 946 don't have p2p0 interface. Supplicant seems to be returning the correct address anyway. */ 947 String status = doStringCommandNative("STATUS"); 948 String result = ""; 949 950 if (status != null) { 951 String[] tokens = status.split("\n"); 952 for (String token : tokens) { 953 if (token.startsWith("p2p_device_address=")) { 954 String[] nameValue = token.split("="); 955 if (nameValue.length != 2) 956 break; 957 result = nameValue[1]; 958 } 959 } 960 } 961 962 Log.d(TAG, "p2pGetDeviceAddress returning " + result); 963 return result; 964 } 965 966 public int getGroupCapability(String deviceAddress) { 967 int gc = 0; 968 if (TextUtils.isEmpty(deviceAddress)) return gc; 969 String peerInfo = p2pPeer(deviceAddress); 970 if (TextUtils.isEmpty(peerInfo)) return gc; 971 972 String[] tokens = peerInfo.split("\n"); 973 for (String token : tokens) { 974 if (token.startsWith("group_capab=")) { 975 String[] nameValue = token.split("="); 976 if (nameValue.length != 2) break; 977 try { 978 return Integer.decode(nameValue[1]); 979 } catch(NumberFormatException e) { 980 return gc; 981 } 982 } 983 } 984 return gc; 985 } 986 987 public String p2pPeer(String deviceAddress) { 988 return doStringCommand("P2P_PEER " + deviceAddress); 989 } 990 991 private String p2pGetParam(String deviceAddress, String key) { 992 if (deviceAddress == null) return null; 993 994 String peerInfo = p2pPeer(deviceAddress); 995 if (peerInfo == null) return null; 996 String[] tokens= peerInfo.split("\n"); 997 998 key += "="; 999 for (String token : tokens) { 1000 if (token.startsWith(key)) { 1001 String[] nameValue = token.split("="); 1002 if (nameValue.length != 2) break; 1003 return nameValue[1]; 1004 } 1005 } 1006 return null; 1007 } 1008 1009 public boolean p2pServiceAdd(WifiP2pServiceInfo servInfo) { 1010 /* 1011 * P2P_SERVICE_ADD bonjour <query hexdump> <RDATA hexdump> 1012 * P2P_SERVICE_ADD upnp <version hex> <service> 1013 * 1014 * e.g) 1015 * [Bonjour] 1016 * # IP Printing over TCP (PTR) (RDATA=MyPrinter._ipp._tcp.local.) 1017 * P2P_SERVICE_ADD bonjour 045f697070c00c000c01 094d795072696e746572c027 1018 * # IP Printing over TCP (TXT) (RDATA=txtvers=1,pdl=application/postscript) 1019 * P2P_SERVICE_ADD bonjour 096d797072696e746572045f697070c00c001001 1020 * 09747874766572733d311a70646c3d6170706c69636174696f6e2f706f7374736372797074 1021 * 1022 * [UPnP] 1023 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012 1024 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::upnp:rootdevice 1025 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::urn:schemas-upnp 1026 * -org:device:InternetGatewayDevice:1 1027 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9322-123456789012::urn:schemas-upnp 1028 * -org:service:ContentDirectory:2 1029 */ 1030 for (String s : servInfo.getSupplicantQueryList()) { 1031 String command = "P2P_SERVICE_ADD"; 1032 command += (" " + s); 1033 if (!doBooleanCommand(command)) { 1034 return false; 1035 } 1036 } 1037 return true; 1038 } 1039 1040 public boolean p2pServiceDel(WifiP2pServiceInfo servInfo) { 1041 /* 1042 * P2P_SERVICE_DEL bonjour <query hexdump> 1043 * P2P_SERVICE_DEL upnp <version hex> <service> 1044 */ 1045 for (String s : servInfo.getSupplicantQueryList()) { 1046 String command = "P2P_SERVICE_DEL "; 1047 1048 String[] data = s.split(" "); 1049 if (data.length < 2) { 1050 return false; 1051 } 1052 if ("upnp".equals(data[0])) { 1053 command += s; 1054 } else if ("bonjour".equals(data[0])) { 1055 command += data[0]; 1056 command += (" " + data[1]); 1057 } else { 1058 return false; 1059 } 1060 if (!doBooleanCommand(command)) { 1061 return false; 1062 } 1063 } 1064 return true; 1065 } 1066 1067 public boolean p2pServiceFlush() { 1068 return doBooleanCommand("P2P_SERVICE_FLUSH"); 1069 } 1070 1071 public String p2pServDiscReq(String addr, String query) { 1072 String command = "P2P_SERV_DISC_REQ"; 1073 command += (" " + addr); 1074 command += (" " + query); 1075 1076 return doStringCommand(command); 1077 } 1078 1079 public boolean p2pServDiscCancelReq(String id) { 1080 return doBooleanCommand("P2P_SERV_DISC_CANCEL_REQ " + id); 1081 } 1082 1083 /* Set the current mode of miracast operation. 1084 * 0 = disabled 1085 * 1 = operating as source 1086 * 2 = operating as sink 1087 */ 1088 public void setMiracastMode(int mode) { 1089 // Note: optional feature on the driver. It is ok for this to fail. 1090 doBooleanCommand("DRIVER MIRACAST " + mode); 1091 } 1092 1093 public boolean fetchAnqp(String bssid, String subtypes) { 1094 return doBooleanCommand("ANQP_GET " + bssid + " " + subtypes); 1095 } 1096 1097 /* WIFI HAL support */ 1098 1099 private static final String TAG = "WifiNative-HAL"; 1100 private static long sWifiHalHandle = 0; /* used by JNI to save wifi_handle */ 1101 private static long[] sWifiIfaceHandles = null; /* used by JNI to save interface handles */ 1102 private static int sWlan0Index = -1; 1103 private static int sP2p0Index = -1; 1104 1105 private static boolean sHalIsStarted = false; 1106 1107 private static native boolean startHalNative(); 1108 private static native void stopHalNative(); 1109 private static native void waitForHalEventNative(); 1110 1111 private static class MonitorThread extends Thread { 1112 public void run() { 1113 Log.i(TAG, "Waiting for HAL events mWifiHalHandle=" + Long.toString(sWifiHalHandle)); 1114 waitForHalEventNative(); 1115 } 1116 } 1117 1118 synchronized public static boolean startHal() { 1119 Log.i(TAG, "startHal"); 1120 synchronized (mLock) { 1121 if (sHalIsStarted) 1122 return true; 1123 if (startHalNative()) { 1124 new MonitorThread().start(); 1125 sHalIsStarted = true; 1126 return true; 1127 } else { 1128 Log.i(TAG, "Could not start hal"); 1129 sHalIsStarted = false; 1130 return false; 1131 } 1132 } 1133 } 1134 1135 synchronized public static void stopHal() { 1136 stopHalNative(); 1137 } 1138 1139 private static native int getInterfacesNative(); 1140 1141 synchronized public static int getInterfaces() { 1142 synchronized (mLock) { 1143 int num = getInterfacesNative(); 1144 int wifi_num = 0; 1145 for (int i = 0; i < num; i++) { 1146 String name = getInterfaceNameNative(i); 1147 Log.i(TAG, "interface[" + i + "] = " + name); 1148 if (name.equals("wlan0")) { 1149 sWlan0Index = i; 1150 wifi_num++; 1151 } else if (name.equals("p2p0")) { 1152 sP2p0Index = i; 1153 wifi_num++; 1154 } 1155 } 1156 return num; 1157 } 1158 } 1159 1160 private static native String getInterfaceNameNative(int index); 1161 synchronized public static String getInterfaceName(int index) { 1162 return getInterfaceNameNative(index); 1163 } 1164 1165 public static class ScanCapabilities { 1166 public int max_scan_cache_size; // in number of scan results?? 1167 public int max_scan_buckets; 1168 public int max_ap_cache_per_scan; 1169 public int max_rssi_sample_size; 1170 public int max_scan_reporting_threshold; // in number of scan results?? 1171 public int max_hotlist_aps; 1172 public int max_significant_wifi_change_aps; 1173 } 1174 1175 public static boolean getScanCapabilities(ScanCapabilities capabilities) { 1176 return getScanCapabilitiesNative(sWlan0Index, capabilities); 1177 } 1178 1179 private static native boolean getScanCapabilitiesNative( 1180 int iface, ScanCapabilities capabilities); 1181 1182 private static native boolean startScanNative(int iface, int id, ScanSettings settings); 1183 private static native boolean stopScanNative(int iface, int id); 1184 private static native ScanResult[] getScanResultsNative(int iface, boolean flush); 1185 private static native WifiLinkLayerStats getWifiLinkLayerStatsNative(int iface); 1186 1187 public static class ChannelSettings { 1188 int frequency; 1189 int dwell_time_ms; 1190 boolean passive; 1191 } 1192 1193 public static class BucketSettings { 1194 int bucket; 1195 int band; 1196 int period_ms; 1197 int report_events; 1198 int num_channels; 1199 ChannelSettings channels[]; 1200 } 1201 1202 public static class ScanSettings { 1203 int base_period_ms; 1204 int max_ap_per_scan; 1205 int report_threshold; 1206 int num_buckets; 1207 BucketSettings buckets[]; 1208 } 1209 1210 public static interface ScanEventHandler { 1211 void onScanResultsAvailable(); 1212 void onFullScanResult(ScanResult fullScanResult); 1213 void onScanPaused(); 1214 void onScanRestarted(); 1215 } 1216 1217 synchronized static void onScanResultsAvailable(int id) { 1218 sScanEventHandler.onScanResultsAvailable(); 1219 } 1220 1221 synchronized static void onFullScanResult(int id, ScanResult result, byte bytes[]) { 1222 Log.i(TAG, "Got a full scan results event, ssid = " + result.SSID + ", " + 1223 "num = " + bytes.length); 1224 1225 int num = 0; 1226 for (int i = 0; i < bytes.length; ) { 1227 num++; 1228 int type = (int) bytes[i] & 0xFF; 1229 int len = (int) bytes[i + 1] & 0xFF; 1230 if (len < 0) { 1231 Log.e(TAG, "bad length; returning"); 1232 return; 1233 } 1234 i += len + 2; 1235 Log.i(TAG, "bytes[" + i + "] = [" + type + ", " + len + "]" + ", next = " + i); 1236 } 1237 1238 ScanResult.InformationElement elements[] = new ScanResult.InformationElement[num]; 1239 for (int i = 0, index = 0; i < num; i++) { 1240 int type = (int) bytes[index] & 0xFF; 1241 int len = (int) bytes[index + 1] & 0xFF; 1242 Log.i(TAG, "index = " + index + ", type = " + type + ", len = " + len); 1243 ScanResult.InformationElement elem = new ScanResult.InformationElement(); 1244 elem.id = type; 1245 elem.bytes = new byte[len]; 1246 for (int j = 0; j < len; j++) { 1247 elem.bytes[j] = bytes[index + j + 2]; 1248 } 1249 elements[i] = elem; 1250 index += (len + 2); 1251 } 1252 1253 result.informationElements = elements; 1254 sScanEventHandler.onFullScanResult(result); 1255 } 1256 1257 private static int sScanCmdId = 0; 1258 private static ScanEventHandler sScanEventHandler; 1259 private static ScanSettings sScanSettings; 1260 1261 synchronized public static boolean startScan( 1262 ScanSettings settings, ScanEventHandler eventHandler) { 1263 synchronized (mLock) { 1264 1265 if (sScanCmdId != 0) { 1266 stopScan(); 1267 } else if (sScanSettings != null || sScanEventHandler != null) { 1268 /* current scan is paused; no need to stop it */ 1269 } 1270 1271 sScanCmdId = getNewCmdIdLocked(); 1272 1273 sScanSettings = settings; 1274 sScanEventHandler = eventHandler; 1275 1276 if (startScanNative(sWlan0Index, sScanCmdId, settings) == false) { 1277 sScanEventHandler = null; 1278 sScanSettings = null; 1279 return false; 1280 } 1281 1282 return true; 1283 } 1284 } 1285 1286 synchronized public static void stopScan() { 1287 synchronized (mLock) { 1288 stopScanNative(sWlan0Index, sScanCmdId); 1289 sScanSettings = null; 1290 sScanEventHandler = null; 1291 sScanCmdId = 0; 1292 } 1293 } 1294 1295 synchronized public static void pauseScan() { 1296 synchronized (mLock) { 1297 if (sScanCmdId != 0 && sScanSettings != null && sScanEventHandler != null) { 1298 Log.d(TAG, "Pausing scan"); 1299 stopScanNative(sWlan0Index, sScanCmdId); 1300 sScanCmdId = 0; 1301 sScanEventHandler.onScanPaused(); 1302 } 1303 } 1304 } 1305 1306 synchronized public static void restartScan() { 1307 synchronized (mLock) { 1308 if (sScanCmdId == 0 && sScanSettings != null && sScanEventHandler != null) { 1309 Log.d(TAG, "Restarting scan"); 1310 startScan(sScanSettings, sScanEventHandler); 1311 sScanEventHandler.onScanRestarted(); 1312 } 1313 } 1314 } 1315 1316 synchronized public static ScanResult[] getScanResults() { 1317 synchronized (mLock) { 1318 return getScanResultsNative(sWlan0Index, /* flush = */ false); 1319 } 1320 } 1321 1322 public static interface HotlistEventHandler { 1323 void onHotlistApFound (ScanResult[]result); 1324 } 1325 1326 private static int sHotlistCmdId = 0; 1327 private static HotlistEventHandler sHotlistEventHandler; 1328 1329 private native static boolean setHotlistNative(int iface, int id, 1330 WifiScanner.HotlistSettings settings); 1331 private native static boolean resetHotlistNative(int iface, int id); 1332 1333 synchronized public static boolean setHotlist(WifiScanner.HotlistSettings settings, 1334 HotlistEventHandler eventHandler) { 1335 synchronized (mLock) { 1336 if (sHotlistCmdId != 0) { 1337 return false; 1338 } else { 1339 sHotlistCmdId = getNewCmdIdLocked(); 1340 } 1341 1342 sHotlistEventHandler = eventHandler; 1343 if (setHotlistNative(sWlan0Index, sScanCmdId, settings) == false) { 1344 sHotlistEventHandler = null; 1345 return false; 1346 } 1347 1348 return true; 1349 } 1350 } 1351 1352 synchronized public static void resetHotlist() { 1353 synchronized (mLock) { 1354 if (sHotlistCmdId != 0) { 1355 resetHotlistNative(sWlan0Index, sHotlistCmdId); 1356 sHotlistCmdId = 0; 1357 sHotlistEventHandler = null; 1358 } 1359 } 1360 } 1361 1362 synchronized public static void onHotlistApFound(int id, ScanResult[] results) { 1363 synchronized (mLock) { 1364 sHotlistEventHandler.onHotlistApFound(results); 1365 } 1366 } 1367 1368 public static interface SignificantWifiChangeEventHandler { 1369 void onChangesFound(ScanResult[] result); 1370 } 1371 1372 private static SignificantWifiChangeEventHandler sSignificantWifiChangeHandler; 1373 private static int sSignificantWifiChangeCmdId; 1374 1375 private static native boolean trackSignificantWifiChangeNative( 1376 int iface, int id, WifiScanner.WifiChangeSettings settings); 1377 private static native boolean untrackSignificantWifiChangeNative(int iface, int id); 1378 1379 synchronized public static boolean trackSignificantWifiChange( 1380 WifiScanner.WifiChangeSettings settings, SignificantWifiChangeEventHandler handler) { 1381 synchronized (mLock) { 1382 if (sSignificantWifiChangeCmdId != 0) { 1383 return false; 1384 } else { 1385 sSignificantWifiChangeCmdId = getNewCmdIdLocked(); 1386 } 1387 1388 sSignificantWifiChangeHandler = handler; 1389 if (trackSignificantWifiChangeNative(sWlan0Index, sScanCmdId, settings) == false) { 1390 sHotlistEventHandler = null; 1391 return false; 1392 } 1393 1394 return true; 1395 } 1396 } 1397 1398 synchronized static void untrackSignificantWifiChange() { 1399 synchronized (mLock) { 1400 if (sSignificantWifiChangeCmdId != 0) { 1401 untrackSignificantWifiChangeNative(sWlan0Index, sSignificantWifiChangeCmdId); 1402 sSignificantWifiChangeCmdId = 0; 1403 sSignificantWifiChangeHandler = null; 1404 } 1405 } 1406 } 1407 1408 synchronized static void onSignificantWifiChange(int id, ScanResult[] results) { 1409 synchronized (mLock) { 1410 sSignificantWifiChangeHandler.onChangesFound(results); 1411 } 1412 } 1413 1414 synchronized public static WifiLinkLayerStats getWifiLinkLayerStats() { 1415 synchronized (mLock) { 1416 if (!sHalIsStarted) 1417 startHal(); 1418 if (sHalIsStarted) 1419 return getWifiLinkLayerStatsNative(sWlan0Index); 1420 } 1421 return null; 1422 } 1423 1424 /* 1425 * NFC-related calls 1426 */ 1427 public String getNfcWpsConfigurationToken(int netId) { 1428 return doStringCommand("WPS_NFC_CONFIG_TOKEN WPS " + netId); 1429 } 1430 1431 public String getNfcHandoverRequest() { 1432 return doStringCommand("NFC_GET_HANDOVER_REQ NDEF P2P-CR"); 1433 } 1434 1435 public String getNfcHandoverSelect() { 1436 return doStringCommand("NFC_GET_HANDOVER_SEL NDEF P2P-CR"); 1437 } 1438 1439 public boolean initiatorReportNfcHandover(String selectMessage) { 1440 return doBooleanCommand("NFC_REPORT_HANDOVER INIT P2P 00 " + selectMessage); 1441 } 1442 1443 public boolean responderReportNfcHandover(String requestMessage) { 1444 return doBooleanCommand("NFC_REPORT_HANDOVER RESP P2P " + requestMessage + " 00"); 1445 } 1446 1447 public static native int getSupportedFeatureSetNative(); 1448 synchronized public static int getSupportedFeatureSet() { 1449 return getSupportedFeatureSetNative(); 1450 } 1451} 1452