WifiNative.java revision 77f2b82a2e80af8da52c22d69a76def6d4209757
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.RttManager; 21import android.net.wifi.ScanResult; 22import android.net.wifi.WifiLinkLayerStats; 23import android.net.wifi.WifiManager; 24import android.net.wifi.WifiScanner; 25import android.net.wifi.WpsInfo; 26import android.net.wifi.p2p.WifiP2pConfig; 27import android.net.wifi.p2p.WifiP2pGroup; 28import android.net.wifi.p2p.nsd.WifiP2pServiceInfo; 29import android.os.SystemClock; 30import android.text.TextUtils; 31import android.util.LocalLog; 32import android.util.Log; 33 34import java.util.ArrayList; 35import java.util.List; 36import java.util.Locale; 37 38/** 39 * Native calls for bring up/shut down of the supplicant daemon and for 40 * sending requests to the supplicant daemon 41 * 42 * waitForEvent() is called on the monitor thread for events. All other methods 43 * must be serialized from the framework. 44 * 45 * {@hide} 46 */ 47public class WifiNative { 48 49 private static boolean DBG = false; 50 private final String mTAG; 51 private static final int DEFAULT_GROUP_OWNER_INTENT = 6; 52 53 static final int BLUETOOTH_COEXISTENCE_MODE_ENABLED = 0; 54 static final int BLUETOOTH_COEXISTENCE_MODE_DISABLED = 1; 55 static final int BLUETOOTH_COEXISTENCE_MODE_SENSE = 2; 56 57 static final int SCAN_WITHOUT_CONNECTION_SETUP = 1; 58 static final int SCAN_WITH_CONNECTION_SETUP = 2; 59 60 // Hold this lock before calling supplicant - it is required to 61 // mutually exclude access from Wifi and P2p state machines 62 static final Object mLock = new Object(); 63 64 public final String mInterfaceName; 65 public final String mInterfacePrefix; 66 67 private boolean mSuspendOptEnabled = false; 68 69 /* Register native functions */ 70 71 static { 72 /* Native functions are defined in libwifi-service.so */ 73 System.loadLibrary("wifi-service"); 74 registerNatives(); 75 } 76 77 private static native int registerNatives(); 78 79 public native static boolean loadDriver(); 80 81 public native static boolean isDriverLoaded(); 82 83 public native static boolean unloadDriver(); 84 85 public native static boolean startSupplicant(boolean p2pSupported); 86 87 /* Sends a kill signal to supplicant. To be used when we have lost connection 88 or when the supplicant is hung */ 89 public native static boolean killSupplicant(boolean p2pSupported); 90 91 private native boolean connectToSupplicantNative(); 92 93 private native void closeSupplicantConnectionNative(); 94 95 /** 96 * Wait for the supplicant to send an event, returning the event string. 97 * @return the event string sent by the supplicant. 98 */ 99 private native String waitForEventNative(); 100 101 private native boolean doBooleanCommandNative(String command); 102 103 private native int doIntCommandNative(String command); 104 105 private native String doStringCommandNative(String command); 106 107 public WifiNative(String interfaceName) { 108 mInterfaceName = interfaceName; 109 mTAG = "WifiNative-" + interfaceName; 110 if (!interfaceName.equals("p2p0")) { 111 mInterfacePrefix = "IFNAME=" + interfaceName + " "; 112 } else { 113 // commands for p2p0 interface don't need prefix 114 mInterfacePrefix = ""; 115 } 116 } 117 118 void enableVerboseLogging(int verbose) { 119 if (verbose > 0) { 120 DBG = true; 121 } else { 122 DBG = false; 123 } 124 } 125 126 private static final LocalLog mLocalLog = new LocalLog(1024); 127 128 // hold mLock before accessing mCmdIdLock 129 private static int sCmdId; 130 131 public LocalLog getLocalLog() { 132 return mLocalLog; 133 } 134 135 private static int getNewCmdIdLocked() { 136 return sCmdId++; 137 } 138 139 private void localLog(String s) { 140 if (mLocalLog != null) 141 mLocalLog.log(mInterfaceName + ": " + s); 142 } 143 144 public boolean connectToSupplicant() { 145 // No synchronization necessary .. it is implemented in WifiMonitor 146 localLog(mInterfacePrefix + "connectToSupplicant"); 147 return connectToSupplicantNative(); 148 } 149 150 public void closeSupplicantConnection() { 151 localLog(mInterfacePrefix + "closeSupplicantConnection"); 152 closeSupplicantConnectionNative(); 153 } 154 155 public String waitForEvent() { 156 // No synchronization necessary .. it is implemented in WifiMonitor 157 return waitForEventNative(); 158 } 159 160 private boolean doBooleanCommand(String command) { 161 if (DBG) Log.d(mTAG, "doBoolean: " + command); 162 synchronized (mLock) { 163 int cmdId = getNewCmdIdLocked(); 164 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 165 boolean result = doBooleanCommandNative(mInterfacePrefix + command); 166 localLog(toLog + " -> " + result); 167 if (DBG) Log.d(mTAG, command + ": returned " + result); 168 return result; 169 } 170 } 171 172 private int doIntCommand(String command) { 173 if (DBG) Log.d(mTAG, "doInt: " + command); 174 synchronized (mLock) { 175 int cmdId = getNewCmdIdLocked(); 176 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 177 int result = doIntCommandNative(mInterfacePrefix + command); 178 localLog(toLog + " -> " + result); 179 if (DBG) Log.d(mTAG, " returned " + result); 180 return result; 181 } 182 } 183 184 private String doStringCommand(String command) { 185 if (DBG) { 186 //GET_NETWORK commands flood the logs 187 if (!command.startsWith("GET_NETWORK")) { 188 Log.d(mTAG, "doString: [" + command + "]"); 189 } 190 } 191 synchronized (mLock) { 192 int cmdId = getNewCmdIdLocked(); 193 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 194 String result = doStringCommandNative(mInterfacePrefix + command); 195 if (result == null) { 196 if (DBG) Log.d(mTAG, "doStringCommandNative no result"); 197 } else { 198 if (!command.startsWith("STATUS-")) { 199 localLog(toLog + " -> " + result); 200 } 201 if (DBG) Log.d(mTAG, " returned " + result.replace("\n", " ")); 202 } 203 return result; 204 } 205 } 206 207 private String doStringCommandWithoutLogging(String command) { 208 if (DBG) { 209 //GET_NETWORK commands flood the logs 210 if (!command.startsWith("GET_NETWORK")) { 211 Log.d(mTAG, "doString: [" + command + "]"); 212 } 213 } 214 synchronized (mLock) { 215 return doStringCommandNative(mInterfacePrefix + command); 216 } 217 } 218 219 public boolean ping() { 220 String pong = doStringCommand("PING"); 221 return (pong != null && pong.equals("PONG")); 222 } 223 224 public void setSupplicantLogLevel(String level) { 225 doStringCommand("LOG_LEVEL " + level); 226 } 227 228 public String getFreqCapability() { 229 return doStringCommand("GET_CAPABILITY freq"); 230 } 231 232 public boolean scan(int type, String freqList) { 233 if (type == SCAN_WITHOUT_CONNECTION_SETUP) { 234 if (freqList == null) return doBooleanCommand("SCAN TYPE=ONLY"); 235 else return doBooleanCommand("SCAN TYPE=ONLY freq=" + freqList); 236 } else if (type == SCAN_WITH_CONNECTION_SETUP) { 237 if (freqList == null) return doBooleanCommand("SCAN"); 238 else return doBooleanCommand("SCAN freq=" + freqList); 239 } else { 240 throw new IllegalArgumentException("Invalid scan type"); 241 } 242 } 243 244 /* Does a graceful shutdown of supplicant. Is a common stop function for both p2p and sta. 245 * 246 * Note that underneath we use a harsh-sounding "terminate" supplicant command 247 * for a graceful stop and a mild-sounding "stop" interface 248 * to kill the process 249 */ 250 public boolean stopSupplicant() { 251 return doBooleanCommand("TERMINATE"); 252 } 253 254 public String listNetworks() { 255 return doStringCommand("LIST_NETWORKS"); 256 } 257 258 public String listNetworks(int last_id) { 259 return doStringCommand("LIST_NETWORKS LAST_ID=" + last_id); 260 } 261 262 public int addNetwork() { 263 return doIntCommand("ADD_NETWORK"); 264 } 265 266 public boolean setNetworkVariable(int netId, String name, String value) { 267 if (TextUtils.isEmpty(name) || TextUtils.isEmpty(value)) return false; 268 return doBooleanCommand("SET_NETWORK " + netId + " " + name + " " + value); 269 } 270 271 public String getNetworkVariable(int netId, String name) { 272 if (TextUtils.isEmpty(name)) return null; 273 274 // GET_NETWORK will likely flood the logs ... 275 return doStringCommandWithoutLogging("GET_NETWORK " + netId + " " + name); 276 } 277 278 public boolean removeNetwork(int netId) { 279 return doBooleanCommand("REMOVE_NETWORK " + netId); 280 } 281 282 283 private void logDbg(String debug) { 284 long now = SystemClock.elapsedRealtimeNanos(); 285 String ts = String.format("[%,d us] ", now/1000); 286 Log.e("WifiNative: ", ts+debug+ " stack:" 287 + Thread.currentThread().getStackTrace()[2].getMethodName() +" - " 288 + Thread.currentThread().getStackTrace()[3].getMethodName() +" - " 289 + Thread.currentThread().getStackTrace()[4].getMethodName() +" - " 290 + Thread.currentThread().getStackTrace()[5].getMethodName()+" - " 291 + Thread.currentThread().getStackTrace()[6].getMethodName()); 292 293 } 294 public boolean enableNetwork(int netId, boolean disableOthers) { 295 if (DBG) logDbg("enableNetwork nid=" + Integer.toString(netId) 296 + " disableOthers=" + disableOthers); 297 if (disableOthers) { 298 return doBooleanCommand("SELECT_NETWORK " + netId); 299 } else { 300 return doBooleanCommand("ENABLE_NETWORK " + netId); 301 } 302 } 303 304 public boolean disableNetwork(int netId) { 305 if (DBG) logDbg("disableNetwork nid=" + Integer.toString(netId)); 306 return doBooleanCommand("DISABLE_NETWORK " + netId); 307 } 308 309 public boolean reconnect() { 310 if (DBG) logDbg("RECONNECT "); 311 return doBooleanCommand("RECONNECT"); 312 } 313 314 public boolean reassociate() { 315 if (DBG) logDbg("REASSOCIATE "); 316 return doBooleanCommand("REASSOCIATE"); 317 } 318 319 public boolean disconnect() { 320 if (DBG) logDbg("DISCONNECT "); 321 return doBooleanCommand("DISCONNECT"); 322 } 323 324 public String status() { 325 return status(false); 326 } 327 328 public String status(boolean noEvents) { 329 if (noEvents) { 330 return doStringCommand("STATUS-NO_EVENTS"); 331 } else { 332 return doStringCommand("STATUS"); 333 } 334 } 335 336 public String getMacAddress() { 337 //Macaddr = XX.XX.XX.XX.XX.XX 338 String ret = doStringCommand("DRIVER MACADDR"); 339 if (!TextUtils.isEmpty(ret)) { 340 String[] tokens = ret.split(" = "); 341 if (tokens.length == 2) return tokens[1]; 342 } 343 return null; 344 } 345 346 /** 347 * Format of results: 348 * ================= 349 * id=1 350 * bssid=68:7f:74:d7:1b:6e 351 * freq=2412 352 * level=-43 353 * tsf=1344621975160944 354 * age=2623 355 * flags=[WPA2-PSK-CCMP][WPS][ESS] 356 * ssid=zubyb 357 * ==== 358 * 359 * RANGE=ALL gets all scan results 360 * RANGE=ID- gets results from ID 361 * MASK=<N> see wpa_supplicant/src/common/wpa_ctrl.h for details 362 * 0 0 1 0 2 363 * WPA_BSS_MASK_MESH_SCAN | WPA_BSS_MASK_DELIM | WPA_BSS_MASK_WIFI_DISPLAY 364 * 0 0 0 1 1 -> 9 365 * WPA_BSS_MASK_INTERNETW | WPA_BSS_MASK_P2P_SCAN | WPA_BSS_MASK_WPS_SCAN | WPA_BSS_MASK_SSID 366 * 1 0 0 1 9 -> d 367 * WPA_BSS_MASK_FLAGS | WPA_BSS_MASK_IE | WPA_BSS_MASK_AGE | WPA_BSS_MASK_TSF 368 * 1 0 0 0 8 369 * WPA_BSS_MASK_LEVEL | WPA_BSS_MASK_NOISE | WPA_BSS_MASK_QUAL | WPA_BSS_MASK_CAPABILITIES 370 * 0 1 1 1 7 371 * WPA_BSS_MASK_BEACON_INT | WPA_BSS_MASK_FREQ | WPA_BSS_MASK_BSSID | WPA_BSS_MASK_ID 372 * 373 * WPA_BSS_MASK_INTERNETW adds ANQP info (ctrl_iface:4151-4176) 374 * 375 * ctrl_iface.c:wpa_supplicant_ctrl_iface_process:7884 376 * wpa_supplicant_ctrl_iface_bss:4315 377 * print_bss_info 378 */ 379 public String scanResults(int sid) { 380 return doStringCommandWithoutLogging("BSS RANGE=" + sid + "- MASK=0x29d87"); 381 } 382 383 public String doCustomCommand(String command) { 384 return doStringCommand(command); 385 } 386 387 /** 388 * Format of result: 389 * id=1016 390 * bssid=00:03:7f:40:84:10 391 * freq=2462 392 * beacon_int=200 393 * capabilities=0x0431 394 * qual=0 395 * noise=0 396 * level=-46 397 * tsf=0000002669008476 398 * age=5 399 * ie=00105143412d485332302d52322d54455354010882848b960c12182403010b0706555... 400 * flags=[WPA2-EAP-CCMP][ESS][P2P][HS20] 401 * ssid=QCA-HS20-R2-TEST 402 * p2p_device_name= 403 * p2p_config_methods=0x0SET_NE 404 * anqp_venue_name=02083d656e6757692d466920416c6c69616e63650a3239383920436f... 405 * anqp_network_auth_type=010000 406 * anqp_roaming_consortium=03506f9a05001bc504bd 407 * anqp_ip_addr_type_availability=0c 408 * anqp_nai_realm=0200300000246d61696c2e6578616d706c652e636f6d3b636973636f2... 409 * anqp_3gpp=000600040132f465 410 * anqp_domain_name=0b65786d61706c652e636f6d 411 * hs20_operator_friendly_name=11656e6757692d466920416c6c69616e63650e636869... 412 * hs20_wan_metrics=01c40900008001000000000a00 413 * hs20_connection_capability=0100000006140001061600000650000106bb010106bb0... 414 * hs20_osu_providers_list=0b5143412d4f53552d425353010901310015656e6757692d... 415 */ 416 public String scanResult(String bssid) { 417 return doStringCommand("BSS " + bssid); 418 } 419 420 /** 421 * Format of command 422 * DRIVER WLS_BATCHING SET SCANFREQ=x MSCAN=r BESTN=y CHANNEL=<z, w, t> RTT=s 423 * where x is an ascii representation of an integer number of seconds between scans 424 * r is an ascii representation of an integer number of scans per batch 425 * y is an ascii representation of an integer number of the max AP to remember per scan 426 * z, w, t represent a 1..n size list of channel numbers and/or 'A', 'B' values 427 * indicating entire ranges of channels 428 * s is an ascii representation of an integer number of highest-strength AP 429 * for which we'd like approximate distance reported 430 * 431 * The return value is an ascii integer representing a guess of the number of scans 432 * the firmware can remember before it runs out of buffer space or -1 on error 433 */ 434 public String setBatchedScanSettings(BatchedScanSettings settings) { 435 if (settings == null) { 436 return doStringCommand("DRIVER WLS_BATCHING STOP"); 437 } 438 String cmd = "DRIVER WLS_BATCHING SET SCANFREQ=" + settings.scanIntervalSec; 439 cmd += " MSCAN=" + settings.maxScansPerBatch; 440 if (settings.maxApPerScan != BatchedScanSettings.UNSPECIFIED) { 441 cmd += " BESTN=" + settings.maxApPerScan; 442 } 443 if (settings.channelSet != null && !settings.channelSet.isEmpty()) { 444 cmd += " CHANNEL=<"; 445 int i = 0; 446 for (String channel : settings.channelSet) { 447 cmd += (i > 0 ? "," : "") + channel; 448 ++i; 449 } 450 cmd += ">"; 451 } 452 if (settings.maxApForDistance != BatchedScanSettings.UNSPECIFIED) { 453 cmd += " RTT=" + settings.maxApForDistance; 454 } 455 return doStringCommand(cmd); 456 } 457 458 public String getBatchedScanResults() { 459 return doStringCommand("DRIVER WLS_BATCHING GET"); 460 } 461 462 public boolean startDriver() { 463 return doBooleanCommand("DRIVER START"); 464 } 465 466 public boolean stopDriver() { 467 return doBooleanCommand("DRIVER STOP"); 468 } 469 470 471 /** 472 * Start filtering out Multicast V4 packets 473 * @return {@code true} if the operation succeeded, {@code false} otherwise 474 * 475 * Multicast filtering rules work as follows: 476 * 477 * The driver can filter multicast (v4 and/or v6) and broadcast packets when in 478 * a power optimized mode (typically when screen goes off). 479 * 480 * In order to prevent the driver from filtering the multicast/broadcast packets, we have to 481 * add a DRIVER RXFILTER-ADD rule followed by DRIVER RXFILTER-START to make the rule effective 482 * 483 * DRIVER RXFILTER-ADD Num 484 * where Num = 0 - Unicast, 1 - Broadcast, 2 - Mutil4 or 3 - Multi6 485 * 486 * and DRIVER RXFILTER-START 487 * In order to stop the usage of these rules, we do 488 * 489 * DRIVER RXFILTER-STOP 490 * DRIVER RXFILTER-REMOVE Num 491 * where Num is as described for RXFILTER-ADD 492 * 493 * The SETSUSPENDOPT driver command overrides the filtering rules 494 */ 495 public boolean startFilteringMulticastV4Packets() { 496 return doBooleanCommand("DRIVER RXFILTER-STOP") 497 && doBooleanCommand("DRIVER RXFILTER-REMOVE 2") 498 && doBooleanCommand("DRIVER RXFILTER-START"); 499 } 500 501 /** 502 * Stop filtering out Multicast V4 packets. 503 * @return {@code true} if the operation succeeded, {@code false} otherwise 504 */ 505 public boolean stopFilteringMulticastV4Packets() { 506 return doBooleanCommand("DRIVER RXFILTER-STOP") 507 && doBooleanCommand("DRIVER RXFILTER-ADD 2") 508 && doBooleanCommand("DRIVER RXFILTER-START"); 509 } 510 511 /** 512 * Start filtering out Multicast V6 packets 513 * @return {@code true} if the operation succeeded, {@code false} otherwise 514 */ 515 public boolean startFilteringMulticastV6Packets() { 516 return doBooleanCommand("DRIVER RXFILTER-STOP") 517 && doBooleanCommand("DRIVER RXFILTER-REMOVE 3") 518 && doBooleanCommand("DRIVER RXFILTER-START"); 519 } 520 521 /** 522 * Stop filtering out Multicast V6 packets. 523 * @return {@code true} if the operation succeeded, {@code false} otherwise 524 */ 525 public boolean stopFilteringMulticastV6Packets() { 526 return doBooleanCommand("DRIVER RXFILTER-STOP") 527 && doBooleanCommand("DRIVER RXFILTER-ADD 3") 528 && doBooleanCommand("DRIVER RXFILTER-START"); 529 } 530 531 /** 532 * Set the operational frequency band 533 * @param band One of 534 * {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO}, 535 * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ}, 536 * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}, 537 * @return {@code true} if the operation succeeded, {@code false} otherwise 538 */ 539 public boolean setBand(int band) { 540 String bandstr; 541 542 if (band == WifiManager.WIFI_FREQUENCY_BAND_5GHZ) 543 bandstr = "5G"; 544 else if (band == WifiManager.WIFI_FREQUENCY_BAND_2GHZ) 545 bandstr = "2G"; 546 else 547 bandstr = "AUTO"; 548 return doBooleanCommand("SET SETBAND " + bandstr); 549 } 550 551 /** 552 * Sets the bluetooth coexistence mode. 553 * 554 * @param mode One of {@link #BLUETOOTH_COEXISTENCE_MODE_DISABLED}, 555 * {@link #BLUETOOTH_COEXISTENCE_MODE_ENABLED}, or 556 * {@link #BLUETOOTH_COEXISTENCE_MODE_SENSE}. 557 * @return Whether the mode was successfully set. 558 */ 559 public boolean setBluetoothCoexistenceMode(int mode) { 560 return doBooleanCommand("DRIVER BTCOEXMODE " + mode); 561 } 562 563 /** 564 * Enable or disable Bluetooth coexistence scan mode. When this mode is on, 565 * some of the low-level scan parameters used by the driver are changed to 566 * reduce interference with A2DP streaming. 567 * 568 * @param isSet whether to enable or disable this mode 569 * @return {@code true} if the command succeeded, {@code false} otherwise. 570 */ 571 public boolean setBluetoothCoexistenceScanMode(boolean setCoexScanMode) { 572 if (setCoexScanMode) { 573 return doBooleanCommand("DRIVER BTCOEXSCAN-START"); 574 } else { 575 return doBooleanCommand("DRIVER BTCOEXSCAN-STOP"); 576 } 577 } 578 579 public void enableSaveConfig() { 580 doBooleanCommand("SET update_config 1"); 581 } 582 583 public boolean saveConfig() { 584 return doBooleanCommand("SAVE_CONFIG"); 585 } 586 587 public boolean addToBlacklist(String bssid) { 588 if (TextUtils.isEmpty(bssid)) return false; 589 return doBooleanCommand("BLACKLIST " + bssid); 590 } 591 592 public boolean clearBlacklist() { 593 return doBooleanCommand("BLACKLIST clear"); 594 } 595 596 public boolean setSuspendOptimizations(boolean enabled) { 597 // if (mSuspendOptEnabled == enabled) return true; 598 mSuspendOptEnabled = enabled; 599 600 Log.e("native", "do suspend " + enabled); 601 if (enabled) { 602 return doBooleanCommand("DRIVER SETSUSPENDMODE 1"); 603 } else { 604 return doBooleanCommand("DRIVER SETSUSPENDMODE 0"); 605 } 606 } 607 608 public boolean setCountryCode(String countryCode) { 609 if (countryCode != null) 610 return doBooleanCommand("DRIVER COUNTRY " + countryCode.toUpperCase(Locale.ROOT)); 611 else 612 return doBooleanCommand("DRIVER COUNTRY"); 613 } 614 615 public void enableBackgroundScan(boolean enable) { 616 if (enable) { 617 doBooleanCommand("SET pno 1"); 618 } else { 619 doBooleanCommand("SET pno 0"); 620 } 621 } 622 623 public void enableAutoConnect(boolean enable) { 624 if (enable) { 625 doBooleanCommand("STA_AUTOCONNECT 1"); 626 } else { 627 doBooleanCommand("STA_AUTOCONNECT 0"); 628 } 629 } 630 631 public void setScanInterval(int scanInterval) { 632 doBooleanCommand("SCAN_INTERVAL " + scanInterval); 633 } 634 635 public void startTdls(String macAddr, boolean enable) { 636 if (enable) { 637 doBooleanCommand("TDLS_DISCOVER " + macAddr); 638 doBooleanCommand("TDLS_SETUP " + macAddr); 639 } else { 640 doBooleanCommand("TDLS_TEARDOWN " + macAddr); 641 } 642 } 643 644 /** Example output: 645 * RSSI=-65 646 * LINKSPEED=48 647 * NOISE=9999 648 * FREQUENCY=0 649 */ 650 public String signalPoll() { 651 return doStringCommandWithoutLogging("SIGNAL_POLL"); 652 } 653 654 /** Example outout: 655 * TXGOOD=396 656 * TXBAD=1 657 */ 658 public String pktcntPoll() { 659 return doStringCommand("PKTCNT_POLL"); 660 } 661 662 public void bssFlush() { 663 doBooleanCommand("BSS_FLUSH 0"); 664 } 665 666 public boolean startWpsPbc(String bssid) { 667 if (TextUtils.isEmpty(bssid)) { 668 return doBooleanCommand("WPS_PBC"); 669 } else { 670 return doBooleanCommand("WPS_PBC " + bssid); 671 } 672 } 673 674 public boolean startWpsPbc(String iface, String bssid) { 675 synchronized (mLock) { 676 if (TextUtils.isEmpty(bssid)) { 677 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC"); 678 } else { 679 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC " + bssid); 680 } 681 } 682 } 683 684 public boolean startWpsPinKeypad(String pin) { 685 if (TextUtils.isEmpty(pin)) return false; 686 return doBooleanCommand("WPS_PIN any " + pin); 687 } 688 689 public boolean startWpsPinKeypad(String iface, String pin) { 690 if (TextUtils.isEmpty(pin)) return false; 691 synchronized (mLock) { 692 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PIN any " + pin); 693 } 694 } 695 696 697 public String startWpsPinDisplay(String bssid) { 698 if (TextUtils.isEmpty(bssid)) { 699 return doStringCommand("WPS_PIN any"); 700 } else { 701 return doStringCommand("WPS_PIN " + bssid); 702 } 703 } 704 705 public String startWpsPinDisplay(String iface, String bssid) { 706 synchronized (mLock) { 707 if (TextUtils.isEmpty(bssid)) { 708 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN any"); 709 } else { 710 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN " + bssid); 711 } 712 } 713 } 714 715 public boolean setExternalSim(boolean external) { 716 synchronized (mLock) { 717 String value = external ? "1" : "0"; 718 Log.d(TAG, "Setting external_sim to " + value); 719 return doBooleanCommand("SET external_sim " + value); 720 } 721 } 722 723 public boolean simAuthResponse(int id, String response) { 724 synchronized (mLock) { 725 return doBooleanCommand("CTRL-RSP-SIM-" + id + ":GSM-AUTH" + response); 726 } 727 } 728 729 /* Configures an access point connection */ 730 public boolean startWpsRegistrar(String bssid, String pin) { 731 if (TextUtils.isEmpty(bssid) || TextUtils.isEmpty(pin)) return false; 732 return doBooleanCommand("WPS_REG " + bssid + " " + pin); 733 } 734 735 public boolean cancelWps() { 736 return doBooleanCommand("WPS_CANCEL"); 737 } 738 739 public boolean setPersistentReconnect(boolean enabled) { 740 int value = (enabled == true) ? 1 : 0; 741 return doBooleanCommand("SET persistent_reconnect " + value); 742 } 743 744 public boolean setDeviceName(String name) { 745 return doBooleanCommand("SET device_name " + name); 746 } 747 748 public boolean setDeviceType(String type) { 749 return doBooleanCommand("SET device_type " + type); 750 } 751 752 public boolean setConfigMethods(String cfg) { 753 return doBooleanCommand("SET config_methods " + cfg); 754 } 755 756 public boolean setManufacturer(String value) { 757 return doBooleanCommand("SET manufacturer " + value); 758 } 759 760 public boolean setModelName(String value) { 761 return doBooleanCommand("SET model_name " + value); 762 } 763 764 public boolean setModelNumber(String value) { 765 return doBooleanCommand("SET model_number " + value); 766 } 767 768 public boolean setSerialNumber(String value) { 769 return doBooleanCommand("SET serial_number " + value); 770 } 771 772 public boolean setP2pSsidPostfix(String postfix) { 773 return doBooleanCommand("SET p2p_ssid_postfix " + postfix); 774 } 775 776 public boolean setP2pGroupIdle(String iface, int time) { 777 synchronized (mLock) { 778 return doBooleanCommandNative("IFNAME=" + iface + " SET p2p_group_idle " + time); 779 } 780 } 781 782 public void setPowerSave(boolean enabled) { 783 if (enabled) { 784 doBooleanCommand("SET ps 1"); 785 } else { 786 doBooleanCommand("SET ps 0"); 787 } 788 } 789 790 public boolean setP2pPowerSave(String iface, boolean enabled) { 791 synchronized (mLock) { 792 if (enabled) { 793 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 1"); 794 } else { 795 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 0"); 796 } 797 } 798 } 799 800 public boolean setWfdEnable(boolean enable) { 801 return doBooleanCommand("SET wifi_display " + (enable ? "1" : "0")); 802 } 803 804 public boolean setWfdDeviceInfo(String hex) { 805 return doBooleanCommand("WFD_SUBELEM_SET 0 " + hex); 806 } 807 808 /** 809 * "sta" prioritizes STA connection over P2P and "p2p" prioritizes 810 * P2P connection over STA 811 */ 812 public boolean setConcurrencyPriority(String s) { 813 return doBooleanCommand("P2P_SET conc_pref " + s); 814 } 815 816 public boolean p2pFind() { 817 return doBooleanCommand("P2P_FIND"); 818 } 819 820 public boolean p2pFind(int timeout) { 821 if (timeout <= 0) { 822 return p2pFind(); 823 } 824 return doBooleanCommand("P2P_FIND " + timeout); 825 } 826 827 public boolean p2pStopFind() { 828 return doBooleanCommand("P2P_STOP_FIND"); 829 } 830 831 public boolean p2pListen() { 832 return doBooleanCommand("P2P_LISTEN"); 833 } 834 835 public boolean p2pListen(int timeout) { 836 if (timeout <= 0) { 837 return p2pListen(); 838 } 839 return doBooleanCommand("P2P_LISTEN " + timeout); 840 } 841 842 public boolean p2pExtListen(boolean enable, int period, int interval) { 843 if (enable && interval < period) { 844 return false; 845 } 846 return doBooleanCommand("P2P_EXT_LISTEN" 847 + (enable ? (" " + period + " " + interval) : "")); 848 } 849 850 public boolean p2pSetChannel(int lc, int oc) { 851 if (DBG) Log.d(mTAG, "p2pSetChannel: lc="+lc+", oc="+oc); 852 853 if (lc >=1 && lc <= 11) { 854 if (!doBooleanCommand("P2P_SET listen_channel " + lc)) { 855 return false; 856 } 857 } else if (lc != 0) { 858 return false; 859 } 860 861 if (oc >= 1 && oc <= 165 ) { 862 int freq = (oc <= 14 ? 2407 : 5000) + oc * 5; 863 return doBooleanCommand("P2P_SET disallow_freq 1000-" 864 + (freq - 5) + "," + (freq + 5) + "-6000"); 865 } else if (oc == 0) { 866 /* oc==0 disables "P2P_SET disallow_freq" (enables all freqs) */ 867 return doBooleanCommand("P2P_SET disallow_freq \"\""); 868 } 869 870 return false; 871 } 872 873 public boolean p2pFlush() { 874 return doBooleanCommand("P2P_FLUSH"); 875 } 876 877 /* p2p_connect <peer device address> <pbc|pin|PIN#> [label|display|keypad] 878 [persistent] [join|auth] [go_intent=<0..15>] [freq=<in MHz>] */ 879 public String p2pConnect(WifiP2pConfig config, boolean joinExistingGroup) { 880 if (config == null) return null; 881 List<String> args = new ArrayList<String>(); 882 WpsInfo wps = config.wps; 883 args.add(config.deviceAddress); 884 885 switch (wps.setup) { 886 case WpsInfo.PBC: 887 args.add("pbc"); 888 break; 889 case WpsInfo.DISPLAY: 890 if (TextUtils.isEmpty(wps.pin)) { 891 args.add("pin"); 892 } else { 893 args.add(wps.pin); 894 } 895 args.add("display"); 896 break; 897 case WpsInfo.KEYPAD: 898 args.add(wps.pin); 899 args.add("keypad"); 900 break; 901 case WpsInfo.LABEL: 902 args.add(wps.pin); 903 args.add("label"); 904 default: 905 break; 906 } 907 908 if (config.netId == WifiP2pGroup.PERSISTENT_NET_ID) { 909 args.add("persistent"); 910 } 911 912 if (joinExistingGroup) { 913 args.add("join"); 914 } else { 915 //TODO: This can be adapted based on device plugged in state and 916 //device battery state 917 int groupOwnerIntent = config.groupOwnerIntent; 918 if (groupOwnerIntent < 0 || groupOwnerIntent > 15) { 919 groupOwnerIntent = DEFAULT_GROUP_OWNER_INTENT; 920 } 921 args.add("go_intent=" + groupOwnerIntent); 922 } 923 924 String command = "P2P_CONNECT "; 925 for (String s : args) command += s + " "; 926 927 return doStringCommand(command); 928 } 929 930 public boolean p2pCancelConnect() { 931 return doBooleanCommand("P2P_CANCEL"); 932 } 933 934 public boolean p2pProvisionDiscovery(WifiP2pConfig config) { 935 if (config == null) return false; 936 937 switch (config.wps.setup) { 938 case WpsInfo.PBC: 939 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " pbc"); 940 case WpsInfo.DISPLAY: 941 //We are doing display, so provision discovery is keypad 942 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " keypad"); 943 case WpsInfo.KEYPAD: 944 //We are doing keypad, so provision discovery is display 945 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " display"); 946 default: 947 break; 948 } 949 return false; 950 } 951 952 public boolean p2pGroupAdd(boolean persistent) { 953 if (persistent) { 954 return doBooleanCommand("P2P_GROUP_ADD persistent"); 955 } 956 return doBooleanCommand("P2P_GROUP_ADD"); 957 } 958 959 public boolean p2pGroupAdd(int netId) { 960 return doBooleanCommand("P2P_GROUP_ADD persistent=" + netId); 961 } 962 963 public boolean p2pGroupRemove(String iface) { 964 if (TextUtils.isEmpty(iface)) return false; 965 synchronized (mLock) { 966 return doBooleanCommandNative("IFNAME=" + iface + " P2P_GROUP_REMOVE " + iface); 967 } 968 } 969 970 public boolean p2pReject(String deviceAddress) { 971 return doBooleanCommand("P2P_REJECT " + deviceAddress); 972 } 973 974 /* Invite a peer to a group */ 975 public boolean p2pInvite(WifiP2pGroup group, String deviceAddress) { 976 if (TextUtils.isEmpty(deviceAddress)) return false; 977 978 if (group == null) { 979 return doBooleanCommand("P2P_INVITE peer=" + deviceAddress); 980 } else { 981 return doBooleanCommand("P2P_INVITE group=" + group.getInterface() 982 + " peer=" + deviceAddress + " go_dev_addr=" + group.getOwner().deviceAddress); 983 } 984 } 985 986 /* Reinvoke a persistent connection */ 987 public boolean p2pReinvoke(int netId, String deviceAddress) { 988 if (TextUtils.isEmpty(deviceAddress) || netId < 0) return false; 989 990 return doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + deviceAddress); 991 } 992 993 public String p2pGetSsid(String deviceAddress) { 994 return p2pGetParam(deviceAddress, "oper_ssid"); 995 } 996 997 public String p2pGetDeviceAddress() { 998 999 Log.d(TAG, "p2pGetDeviceAddress"); 1000 1001 String status = null; 1002 1003 /* Explicitly calling the API without IFNAME= prefix to take care of the devices that 1004 don't have p2p0 interface. Supplicant seems to be returning the correct address anyway. */ 1005 1006 synchronized (mLock) { 1007 status = doStringCommandNative("STATUS"); 1008 } 1009 1010 String result = ""; 1011 if (status != null) { 1012 String[] tokens = status.split("\n"); 1013 for (String token : tokens) { 1014 if (token.startsWith("p2p_device_address=")) { 1015 String[] nameValue = token.split("="); 1016 if (nameValue.length != 2) 1017 break; 1018 result = nameValue[1]; 1019 } 1020 } 1021 } 1022 1023 Log.d(TAG, "p2pGetDeviceAddress returning " + result); 1024 return result; 1025 } 1026 1027 public int getGroupCapability(String deviceAddress) { 1028 int gc = 0; 1029 if (TextUtils.isEmpty(deviceAddress)) return gc; 1030 String peerInfo = p2pPeer(deviceAddress); 1031 if (TextUtils.isEmpty(peerInfo)) return gc; 1032 1033 String[] tokens = peerInfo.split("\n"); 1034 for (String token : tokens) { 1035 if (token.startsWith("group_capab=")) { 1036 String[] nameValue = token.split("="); 1037 if (nameValue.length != 2) break; 1038 try { 1039 return Integer.decode(nameValue[1]); 1040 } catch(NumberFormatException e) { 1041 return gc; 1042 } 1043 } 1044 } 1045 return gc; 1046 } 1047 1048 public String p2pPeer(String deviceAddress) { 1049 return doStringCommand("P2P_PEER " + deviceAddress); 1050 } 1051 1052 private String p2pGetParam(String deviceAddress, String key) { 1053 if (deviceAddress == null) return null; 1054 1055 String peerInfo = p2pPeer(deviceAddress); 1056 if (peerInfo == null) return null; 1057 String[] tokens= peerInfo.split("\n"); 1058 1059 key += "="; 1060 for (String token : tokens) { 1061 if (token.startsWith(key)) { 1062 String[] nameValue = token.split("="); 1063 if (nameValue.length != 2) break; 1064 return nameValue[1]; 1065 } 1066 } 1067 return null; 1068 } 1069 1070 public boolean p2pServiceAdd(WifiP2pServiceInfo servInfo) { 1071 /* 1072 * P2P_SERVICE_ADD bonjour <query hexdump> <RDATA hexdump> 1073 * P2P_SERVICE_ADD upnp <version hex> <service> 1074 * 1075 * e.g) 1076 * [Bonjour] 1077 * # IP Printing over TCP (PTR) (RDATA=MyPrinter._ipp._tcp.local.) 1078 * P2P_SERVICE_ADD bonjour 045f697070c00c000c01 094d795072696e746572c027 1079 * # IP Printing over TCP (TXT) (RDATA=txtvers=1,pdl=application/postscript) 1080 * P2P_SERVICE_ADD bonjour 096d797072696e746572045f697070c00c001001 1081 * 09747874766572733d311a70646c3d6170706c69636174696f6e2f706f7374736372797074 1082 * 1083 * [UPnP] 1084 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012 1085 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::upnp:rootdevice 1086 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::urn:schemas-upnp 1087 * -org:device:InternetGatewayDevice:1 1088 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9322-123456789012::urn:schemas-upnp 1089 * -org:service:ContentDirectory:2 1090 */ 1091 for (String s : servInfo.getSupplicantQueryList()) { 1092 String command = "P2P_SERVICE_ADD"; 1093 command += (" " + s); 1094 if (!doBooleanCommand(command)) { 1095 return false; 1096 } 1097 } 1098 return true; 1099 } 1100 1101 public boolean p2pServiceDel(WifiP2pServiceInfo servInfo) { 1102 /* 1103 * P2P_SERVICE_DEL bonjour <query hexdump> 1104 * P2P_SERVICE_DEL upnp <version hex> <service> 1105 */ 1106 for (String s : servInfo.getSupplicantQueryList()) { 1107 String command = "P2P_SERVICE_DEL "; 1108 1109 String[] data = s.split(" "); 1110 if (data.length < 2) { 1111 return false; 1112 } 1113 if ("upnp".equals(data[0])) { 1114 command += s; 1115 } else if ("bonjour".equals(data[0])) { 1116 command += data[0]; 1117 command += (" " + data[1]); 1118 } else { 1119 return false; 1120 } 1121 if (!doBooleanCommand(command)) { 1122 return false; 1123 } 1124 } 1125 return true; 1126 } 1127 1128 public boolean p2pServiceFlush() { 1129 return doBooleanCommand("P2P_SERVICE_FLUSH"); 1130 } 1131 1132 public String p2pServDiscReq(String addr, String query) { 1133 String command = "P2P_SERV_DISC_REQ"; 1134 command += (" " + addr); 1135 command += (" " + query); 1136 1137 return doStringCommand(command); 1138 } 1139 1140 public boolean p2pServDiscCancelReq(String id) { 1141 return doBooleanCommand("P2P_SERV_DISC_CANCEL_REQ " + id); 1142 } 1143 1144 /* Set the current mode of miracast operation. 1145 * 0 = disabled 1146 * 1 = operating as source 1147 * 2 = operating as sink 1148 */ 1149 public void setMiracastMode(int mode) { 1150 // Note: optional feature on the driver. It is ok for this to fail. 1151 doBooleanCommand("DRIVER MIRACAST " + mode); 1152 } 1153 1154 public boolean fetchAnqp(String bssid, String subtypes) { 1155 return doBooleanCommand("ANQP_GET " + bssid + " " + subtypes); 1156 } 1157 1158 /* WIFI HAL support */ 1159 1160 private static final String TAG = "WifiNative-HAL"; 1161 private static long sWifiHalHandle = 0; /* used by JNI to save wifi_handle */ 1162 private static long[] sWifiIfaceHandles = null; /* used by JNI to save interface handles */ 1163 private static int sWlan0Index = -1; 1164 private static int sP2p0Index = -1; 1165 1166 private static boolean sHalIsStarted = false; 1167 private static boolean sHalFailed = false; 1168 1169 private static native boolean startHalNative(); 1170 private static native void stopHalNative(); 1171 private static native void waitForHalEventNative(); 1172 1173 private static class MonitorThread extends Thread { 1174 public void run() { 1175 Log.i(TAG, "Waiting for HAL events mWifiHalHandle=" + Long.toString(sWifiHalHandle)); 1176 waitForHalEventNative(); 1177 } 1178 } 1179 1180 synchronized public static boolean startHal() { 1181 Log.i(TAG, "startHal"); 1182 synchronized (mLock) { 1183 if (sHalFailed) 1184 return false; 1185 if (startHalNative() && (getInterfaces() != 0) && (sWlan0Index != -1)) { 1186 new MonitorThread().start(); 1187 sHalIsStarted = true; 1188 return true; 1189 } else { 1190 Log.i(TAG, "Could not start hal"); 1191 sHalIsStarted = false; 1192 sHalFailed = true; 1193 return false; 1194 } 1195 } 1196 } 1197 1198 synchronized public static void stopHal() { 1199 stopHalNative(); 1200 } 1201 1202 private static native int getInterfacesNative(); 1203 1204 synchronized public static int getInterfaces() { 1205 synchronized (mLock) { 1206 if (sWifiIfaceHandles == null) { 1207 int num = getInterfacesNative(); 1208 int wifi_num = 0; 1209 for (int i = 0; i < num; i++) { 1210 String name = getInterfaceNameNative(i); 1211 Log.i(TAG, "interface[" + i + "] = " + name); 1212 if (name.equals("wlan0")) { 1213 sWlan0Index = i; 1214 wifi_num++; 1215 } else if (name.equals("p2p0")) { 1216 sP2p0Index = i; 1217 wifi_num++; 1218 } 1219 } 1220 return wifi_num; 1221 } else { 1222 return sWifiIfaceHandles.length; 1223 } 1224 } 1225 } 1226 1227 private static native String getInterfaceNameNative(int index); 1228 synchronized public static String getInterfaceName(int index) { 1229 return getInterfaceNameNative(index); 1230 } 1231 1232 public static class ScanCapabilities { 1233 public int max_scan_cache_size; // in number of scan results?? 1234 public int max_scan_buckets; 1235 public int max_ap_cache_per_scan; 1236 public int max_rssi_sample_size; 1237 public int max_scan_reporting_threshold; // in number of scan results?? 1238 public int max_hotlist_aps; 1239 public int max_significant_wifi_change_aps; 1240 } 1241 1242 public static boolean getScanCapabilities(ScanCapabilities capabilities) { 1243 return getScanCapabilitiesNative(sWlan0Index, capabilities); 1244 } 1245 1246 private static native boolean getScanCapabilitiesNative( 1247 int iface, ScanCapabilities capabilities); 1248 1249 private static native boolean startScanNative(int iface, int id, ScanSettings settings); 1250 private static native boolean stopScanNative(int iface, int id); 1251 private static native WifiScanner.ScanData[] getScanResultsNative(int iface, boolean flush); 1252 private static native WifiLinkLayerStats getWifiLinkLayerStatsNative(int iface); 1253 1254 public static class ChannelSettings { 1255 int frequency; 1256 int dwell_time_ms; 1257 boolean passive; 1258 } 1259 1260 public static class BucketSettings { 1261 int bucket; 1262 int band; 1263 int period_ms; 1264 int report_events; 1265 int num_channels; 1266 ChannelSettings channels[]; 1267 } 1268 1269 public static class ScanSettings { 1270 int base_period_ms; 1271 int max_ap_per_scan; 1272 int report_threshold_percent; 1273 int report_threshold_num_scans; 1274 int num_buckets; 1275 BucketSettings buckets[]; 1276 } 1277 1278 public static interface ScanEventHandler { 1279 void onScanResultsAvailable(); 1280 void onFullScanResult(ScanResult fullScanResult); 1281 void onScanStatus(); 1282 void onScanPaused(WifiScanner.ScanData[] data); 1283 void onScanRestarted(); 1284 } 1285 1286 synchronized static void onScanResultsAvailable(int id) { 1287 if (sScanEventHandler != null) { 1288 sScanEventHandler.onScanResultsAvailable(); 1289 } 1290 } 1291 1292 /* scan status, keep these values in sync with gscan.h */ 1293 private static int WIFI_SCAN_BUFFER_FULL = 0; 1294 private static int WIFI_SCAN_COMPLETE = 1; 1295 1296 synchronized static void onScanStatus(int status) { 1297 Log.i(TAG, "Got a scan status changed event, status = " + status); 1298 1299 if (status == WIFI_SCAN_BUFFER_FULL) { 1300 /* we have a separate event to take care of this */ 1301 } else if (status == WIFI_SCAN_COMPLETE) { 1302 if (sScanEventHandler != null) { 1303 sScanEventHandler.onScanStatus(); 1304 } 1305 } 1306 } 1307 1308 synchronized static void onFullScanResult(int id, ScanResult result, byte bytes[]) { 1309 if (DBG) Log.i(TAG, "Got a full scan results event, ssid = " + result.SSID + ", " + 1310 "num = " + bytes.length); 1311 1312 if (sScanEventHandler == null) { 1313 return; 1314 } 1315 1316 int num = 0; 1317 for (int i = 0; i < bytes.length; ) { 1318 int type = bytes[i] & 0xFF; 1319 int len = bytes[i + 1] & 0xFF; 1320 1321 if (i + len + 2 > bytes.length) { 1322 Log.w(TAG, "bad length " + len + " of IE " + type + " from " + result.BSSID); 1323 Log.w(TAG, "ignoring the rest of the IEs"); 1324 break; 1325 } 1326 num++; 1327 i += len + 2; 1328 if (DBG) Log.i(TAG, "bytes[" + i + "] = [" + type + ", " + len + "]" + ", " + 1329 "next = " + i); 1330 } 1331 1332 ScanResult.InformationElement elements[] = new ScanResult.InformationElement[num]; 1333 for (int i = 0, index = 0; i < num; i++) { 1334 int type = bytes[index] & 0xFF; 1335 int len = bytes[index + 1] & 0xFF; 1336 if (DBG) Log.i(TAG, "index = " + index + ", type = " + type + ", len = " + len); 1337 ScanResult.InformationElement elem = new ScanResult.InformationElement(); 1338 elem.id = type; 1339 elem.bytes = new byte[len]; 1340 for (int j = 0; j < len; j++) { 1341 elem.bytes[j] = bytes[index + j + 2]; 1342 } 1343 elements[i] = elem; 1344 index += (len + 2); 1345 } 1346 1347 result.informationElements = elements; 1348 sScanEventHandler.onFullScanResult(result); 1349 } 1350 1351 private static int sScanCmdId = 0; 1352 private static ScanEventHandler sScanEventHandler; 1353 private static ScanSettings sScanSettings; 1354 1355 synchronized public static boolean startScan( 1356 ScanSettings settings, ScanEventHandler eventHandler) { 1357 synchronized (mLock) { 1358 1359 if (sScanCmdId != 0) { 1360 stopScan(); 1361 } else if (sScanSettings != null || sScanEventHandler != null) { 1362 /* current scan is paused; no need to stop it */ 1363 } 1364 1365 sScanCmdId = getNewCmdIdLocked(); 1366 1367 sScanSettings = settings; 1368 sScanEventHandler = eventHandler; 1369 1370 if (startScanNative(sWlan0Index, sScanCmdId, settings) == false) { 1371 sScanEventHandler = null; 1372 sScanSettings = null; 1373 sScanCmdId = 0; 1374 return false; 1375 } 1376 1377 return true; 1378 } 1379 } 1380 1381 synchronized public static void stopScan() { 1382 synchronized (mLock) { 1383 stopScanNative(sWlan0Index, sScanCmdId); 1384 sScanSettings = null; 1385 sScanEventHandler = null; 1386 sScanCmdId = 0; 1387 } 1388 } 1389 1390 synchronized public static void pauseScan() { 1391 synchronized (mLock) { 1392 if (sScanCmdId != 0 && sScanSettings != null && sScanEventHandler != null) { 1393 Log.d(TAG, "Pausing scan"); 1394 WifiScanner.ScanData scanData[] = getScanResultsNative(sWlan0Index, true); 1395 stopScanNative(sWlan0Index, sScanCmdId); 1396 sScanCmdId = 0; 1397 sScanEventHandler.onScanPaused(scanData); 1398 } 1399 } 1400 } 1401 1402 synchronized public static void restartScan() { 1403 synchronized (mLock) { 1404 if (sScanCmdId == 0 && sScanSettings != null && sScanEventHandler != null) { 1405 Log.d(TAG, "Restarting scan"); 1406 ScanEventHandler handler = sScanEventHandler; 1407 ScanSettings settings = sScanSettings; 1408 if (startScan(sScanSettings, sScanEventHandler)) { 1409 sScanEventHandler.onScanRestarted(); 1410 } else { 1411 /* we are still paused; don't change state */ 1412 sScanEventHandler = handler; 1413 sScanSettings = settings; 1414 } 1415 } 1416 } 1417 } 1418 1419 synchronized public static WifiScanner.ScanData[] getScanResults(boolean flush) { 1420 synchronized (mLock) { 1421 return getScanResultsNative(sWlan0Index, flush); 1422 } 1423 } 1424 1425 public static interface HotlistEventHandler { 1426 void onHotlistApFound (ScanResult[] result); 1427 void onHotlistApLost (ScanResult[] result); 1428 } 1429 1430 private static int sHotlistCmdId = 0; 1431 private static HotlistEventHandler sHotlistEventHandler; 1432 1433 private native static boolean setHotlistNative(int iface, int id, 1434 WifiScanner.HotlistSettings settings); 1435 private native static boolean resetHotlistNative(int iface, int id); 1436 1437 synchronized public static boolean setHotlist(WifiScanner.HotlistSettings settings, 1438 HotlistEventHandler eventHandler) { 1439 synchronized (mLock) { 1440 if (sHotlistCmdId != 0) { 1441 return false; 1442 } else { 1443 sHotlistCmdId = getNewCmdIdLocked(); 1444 } 1445 1446 sHotlistEventHandler = eventHandler; 1447 if (setHotlistNative(sWlan0Index, sScanCmdId, settings) == false) { 1448 sHotlistEventHandler = null; 1449 return false; 1450 } 1451 1452 return true; 1453 } 1454 } 1455 1456 synchronized public static void resetHotlist() { 1457 synchronized (mLock) { 1458 if (sHotlistCmdId != 0) { 1459 resetHotlistNative(sWlan0Index, sHotlistCmdId); 1460 sHotlistCmdId = 0; 1461 sHotlistEventHandler = null; 1462 } 1463 } 1464 } 1465 1466 synchronized public static void onHotlistApFound(int id, ScanResult[] results) { 1467 synchronized (mLock) { 1468 if (sHotlistCmdId != 0) { 1469 sHotlistEventHandler.onHotlistApFound(results); 1470 } else { 1471 /* this can happen because of race conditions */ 1472 Log.d(TAG, "Ignoring hotlist AP found event"); 1473 } 1474 } 1475 } 1476 1477 synchronized public static void onHotlistApLost(int id, ScanResult[] results) { 1478 synchronized (mLock) { 1479 if (sHotlistCmdId != 0) { 1480 sHotlistEventHandler.onHotlistApLost(results); 1481 } else { 1482 /* this can happen because of race conditions */ 1483 Log.d(TAG, "Ignoring hotlist AP lost event"); 1484 } 1485 } 1486 } 1487 1488 public static interface SignificantWifiChangeEventHandler { 1489 void onChangesFound(ScanResult[] result); 1490 } 1491 1492 private static SignificantWifiChangeEventHandler sSignificantWifiChangeHandler; 1493 private static int sSignificantWifiChangeCmdId; 1494 1495 private static native boolean trackSignificantWifiChangeNative( 1496 int iface, int id, WifiScanner.WifiChangeSettings settings); 1497 private static native boolean untrackSignificantWifiChangeNative(int iface, int id); 1498 1499 synchronized public static boolean trackSignificantWifiChange( 1500 WifiScanner.WifiChangeSettings settings, SignificantWifiChangeEventHandler handler) { 1501 synchronized (mLock) { 1502 if (sSignificantWifiChangeCmdId != 0) { 1503 return false; 1504 } else { 1505 sSignificantWifiChangeCmdId = getNewCmdIdLocked(); 1506 } 1507 1508 sSignificantWifiChangeHandler = handler; 1509 if (trackSignificantWifiChangeNative(sWlan0Index, sScanCmdId, settings) == false) { 1510 sSignificantWifiChangeHandler = null; 1511 return false; 1512 } 1513 1514 return true; 1515 } 1516 } 1517 1518 synchronized static void untrackSignificantWifiChange() { 1519 synchronized (mLock) { 1520 if (sSignificantWifiChangeCmdId != 0) { 1521 untrackSignificantWifiChangeNative(sWlan0Index, sSignificantWifiChangeCmdId); 1522 sSignificantWifiChangeCmdId = 0; 1523 sSignificantWifiChangeHandler = null; 1524 } 1525 } 1526 } 1527 1528 synchronized static void onSignificantWifiChange(int id, ScanResult[] results) { 1529 synchronized (mLock) { 1530 if (sSignificantWifiChangeCmdId != 0) { 1531 sSignificantWifiChangeHandler.onChangesFound(results); 1532 } else { 1533 /* this can happen because of race conditions */ 1534 Log.d(TAG, "Ignoring significant wifi change"); 1535 } 1536 } 1537 } 1538 1539 synchronized public static WifiLinkLayerStats getWifiLinkLayerStats(String iface) { 1540 // TODO: use correct iface name to Index translation 1541 if (iface == null) return null; 1542 synchronized (mLock) { 1543 if (!sHalIsStarted) 1544 startHal(); 1545 if (sHalIsStarted) 1546 return getWifiLinkLayerStatsNative(sWlan0Index); 1547 } 1548 return null; 1549 } 1550 1551 /* 1552 * NFC-related calls 1553 */ 1554 public String getNfcWpsConfigurationToken(int netId) { 1555 return doStringCommand("WPS_NFC_CONFIG_TOKEN WPS " + netId); 1556 } 1557 1558 public String getNfcHandoverRequest() { 1559 return doStringCommand("NFC_GET_HANDOVER_REQ NDEF P2P-CR"); 1560 } 1561 1562 public String getNfcHandoverSelect() { 1563 return doStringCommand("NFC_GET_HANDOVER_SEL NDEF P2P-CR"); 1564 } 1565 1566 public boolean initiatorReportNfcHandover(String selectMessage) { 1567 return doBooleanCommand("NFC_REPORT_HANDOVER INIT P2P 00 " + selectMessage); 1568 } 1569 1570 public boolean responderReportNfcHandover(String requestMessage) { 1571 return doBooleanCommand("NFC_REPORT_HANDOVER RESP P2P " + requestMessage + " 00"); 1572 } 1573 1574 public static native int getSupportedFeatureSetNative(int iface); 1575 synchronized public static int getSupportedFeatureSet() { 1576 return getSupportedFeatureSetNative(sWlan0Index); 1577 } 1578 1579 /* Rtt related commands/events */ 1580 public static interface RttEventHandler { 1581 void onRttResults(RttManager.RttResult[] result); 1582 } 1583 1584 private static RttEventHandler sRttEventHandler; 1585 private static int sRttCmdId; 1586 1587 synchronized private static void onRttResults(int id, RttManager.RttResult[] results) { 1588 if (id == sRttCmdId) { 1589 Log.d(TAG, "Received " + results.length + " rtt results"); 1590 sRttEventHandler.onRttResults(results); 1591 sRttCmdId = 0; 1592 } else { 1593 Log.d(TAG, "Received event for unknown cmd = " + id + ", current id = " + sRttCmdId); 1594 } 1595 } 1596 1597 private static native boolean requestRangeNative( 1598 int iface, int id, RttManager.RttParams[] params); 1599 private static native boolean cancelRangeRequestNative( 1600 int iface, int id, RttManager.RttParams[] params); 1601 1602 synchronized public static boolean requestRtt( 1603 RttManager.RttParams[] params, RttEventHandler handler) { 1604 synchronized (mLock) { 1605 if (sRttCmdId != 0) { 1606 return false; 1607 } else { 1608 sRttCmdId = getNewCmdIdLocked(); 1609 } 1610 sRttEventHandler = handler; 1611 return requestRangeNative(sWlan0Index, sRttCmdId, params); 1612 } 1613 } 1614 1615 synchronized public static boolean cancelRtt(RttManager.RttParams[] params) { 1616 synchronized(mLock) { 1617 if (sRttCmdId == 0) { 1618 return false; 1619 } 1620 1621 if (cancelRangeRequestNative(sWlan0Index, sRttCmdId, params)) { 1622 sRttEventHandler = null; 1623 return true; 1624 } else { 1625 return false; 1626 } 1627 } 1628 } 1629 1630 private static native boolean setScanningMacOuiNative(int iface, byte[] oui); 1631 1632 synchronized public static boolean setScanningMacOui(byte[] oui) { 1633 synchronized (mLock) { 1634 if (startHal()) { 1635 return setScanningMacOuiNative(sWlan0Index, oui); 1636 } else { 1637 return false; 1638 } 1639 } 1640 } 1641 1642 private static native int[] getChannelsForBandNative( 1643 int iface, int band); 1644 1645 synchronized public static int [] getChannelsForBand(int band) { 1646 synchronized (mLock) { 1647 if (startHal()) { 1648 return getChannelsForBandNative(sWlan0Index, band); 1649 } else { 1650 return null; 1651 } 1652 } 1653 } 1654 1655 1656 private static native boolean setDfsFlagNative(int iface, boolean dfsOn); 1657 synchronized public static boolean setDfsFlag(boolean dfsOn) { 1658 synchronized (mLock) { 1659 if (startHal()) { 1660 return setDfsFlagNative(sWlan0Index, dfsOn); 1661 } else { 1662 return false; 1663 } 1664 } 1665 } 1666 1667 private static native boolean toggleInterfaceNative(int on); 1668 synchronized public static boolean toggleInterface(int on) { 1669 synchronized (mLock) { 1670 if (startHal()) { 1671 return toggleInterfaceNative(0); 1672 } else { 1673 1674 return false; 1675 } 1676 } 1677 } 1678} 1679