WifiNative.java revision ad607d99c372160c7d4b38e755e1b47d6419856e
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.RttManager; 26import android.net.wifi.WpsInfo; 27import android.net.wifi.p2p.WifiP2pConfig; 28import android.net.wifi.p2p.WifiP2pGroup; 29import android.net.wifi.p2p.nsd.WifiP2pServiceInfo; 30import android.os.SystemClock; 31import android.text.TextUtils; 32import android.util.LocalLog; 33import android.util.Log; 34 35import java.util.ArrayList; 36import java.util.List; 37import java.util.Locale; 38 39/** 40 * Native calls for bring up/shut down of the supplicant daemon and for 41 * sending requests to the supplicant daemon 42 * 43 * waitForEvent() is called on the monitor thread for events. All other methods 44 * must be serialized from the framework. 45 * 46 * {@hide} 47 */ 48public class WifiNative { 49 50 private static boolean DBG = false; 51 private final String mTAG; 52 private static final int DEFAULT_GROUP_OWNER_INTENT = 6; 53 54 static final int BLUETOOTH_COEXISTENCE_MODE_ENABLED = 0; 55 static final int BLUETOOTH_COEXISTENCE_MODE_DISABLED = 1; 56 static final int BLUETOOTH_COEXISTENCE_MODE_SENSE = 2; 57 58 static final int SCAN_WITHOUT_CONNECTION_SETUP = 1; 59 static final int SCAN_WITH_CONNECTION_SETUP = 2; 60 61 // Hold this lock before calling supplicant - it is required to 62 // mutually exclude access from Wifi and P2p state machines 63 static final Object mLock = new Object(); 64 65 public final String mInterfaceName; 66 public final String mInterfacePrefix; 67 68 private boolean mSuspendOptEnabled = false; 69 70 private static final int EID_HT_OPERATION = 61; 71 private static final int EID_VHT_OPERATION = 192; 72 private static final int EID_EXTENDED_CAPS = 127; 73 private static final int RTT_RESP_ENABLE_BIT = 70; 74 /* Register native functions */ 75 76 static { 77 /* Native functions are defined in libwifi-service.so */ 78 System.loadLibrary("wifi-service"); 79 registerNatives(); 80 } 81 82 private static native int registerNatives(); 83 84 public native static boolean loadDriver(); 85 86 public native static boolean isDriverLoaded(); 87 88 public native static boolean unloadDriver(); 89 90 public native static boolean startSupplicant(boolean p2pSupported); 91 92 /* Sends a kill signal to supplicant. To be used when we have lost connection 93 or when the supplicant is hung */ 94 public native static boolean killSupplicant(boolean p2pSupported); 95 96 private native boolean connectToSupplicantNative(); 97 98 private native void closeSupplicantConnectionNative(); 99 100 /** 101 * Wait for the supplicant to send an event, returning the event string. 102 * @return the event string sent by the supplicant. 103 */ 104 private native String waitForEventNative(); 105 106 private native boolean doBooleanCommandNative(String command); 107 108 private native int doIntCommandNative(String command); 109 110 private native String doStringCommandNative(String command); 111 112 public WifiNative(String interfaceName) { 113 mInterfaceName = interfaceName; 114 mTAG = "WifiNative-" + interfaceName; 115 if (!interfaceName.equals("p2p0")) { 116 mInterfacePrefix = "IFNAME=" + interfaceName + " "; 117 } else { 118 // commands for p2p0 interface don't need prefix 119 mInterfacePrefix = ""; 120 } 121 } 122 123 void enableVerboseLogging(int verbose) { 124 if (verbose > 0) { 125 DBG = true; 126 } else { 127 DBG = false; 128 } 129 } 130 131 private static final LocalLog mLocalLog = new LocalLog(1024); 132 133 // hold mLock before accessing mCmdIdLock 134 private static int sCmdId; 135 136 public LocalLog getLocalLog() { 137 return mLocalLog; 138 } 139 140 private static int getNewCmdIdLocked() { 141 return sCmdId++; 142 } 143 144 private void localLog(String s) { 145 if (mLocalLog != null) 146 mLocalLog.log(mInterfaceName + ": " + s); 147 } 148 149 public boolean connectToSupplicant() { 150 // No synchronization necessary .. it is implemented in WifiMonitor 151 localLog(mInterfacePrefix + "connectToSupplicant"); 152 return connectToSupplicantNative(); 153 } 154 155 public void closeSupplicantConnection() { 156 localLog(mInterfacePrefix + "closeSupplicantConnection"); 157 closeSupplicantConnectionNative(); 158 } 159 160 public String waitForEvent() { 161 // No synchronization necessary .. it is implemented in WifiMonitor 162 return waitForEventNative(); 163 } 164 165 private boolean doBooleanCommand(String command) { 166 if (DBG) Log.d(mTAG, "doBoolean: " + command); 167 synchronized (mLock) { 168 int cmdId = getNewCmdIdLocked(); 169 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 170 boolean result = doBooleanCommandNative(mInterfacePrefix + command); 171 localLog(toLog + " -> " + result); 172 if (DBG) Log.d(mTAG, command + ": returned " + result); 173 return result; 174 } 175 } 176 177 private int doIntCommand(String command) { 178 if (DBG) Log.d(mTAG, "doInt: " + command); 179 synchronized (mLock) { 180 int cmdId = getNewCmdIdLocked(); 181 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 182 int result = doIntCommandNative(mInterfacePrefix + command); 183 localLog(toLog + " -> " + result); 184 if (DBG) Log.d(mTAG, " returned " + result); 185 return result; 186 } 187 } 188 189 private String doStringCommand(String command) { 190 if (DBG) { 191 //GET_NETWORK commands flood the logs 192 if (!command.startsWith("GET_NETWORK")) { 193 Log.d(mTAG, "doString: [" + command + "]"); 194 } 195 } 196 synchronized (mLock) { 197 int cmdId = getNewCmdIdLocked(); 198 String toLog = Integer.toString(cmdId) + ":" + mInterfacePrefix + command; 199 String result = doStringCommandNative(mInterfacePrefix + command); 200 if (result == null) { 201 if (DBG) Log.d(mTAG, "doStringCommandNative no result"); 202 } else { 203 if (!command.startsWith("STATUS-")) { 204 localLog(toLog + " -> " + result); 205 } 206 if (DBG) Log.d(mTAG, " returned " + result.replace("\n", " ")); 207 } 208 return result; 209 } 210 } 211 212 private String doStringCommandWithoutLogging(String command) { 213 if (DBG) { 214 //GET_NETWORK commands flood the logs 215 if (!command.startsWith("GET_NETWORK")) { 216 Log.d(mTAG, "doString: [" + command + "]"); 217 } 218 } 219 synchronized (mLock) { 220 return doStringCommandNative(mInterfacePrefix + command); 221 } 222 } 223 224 public boolean ping() { 225 String pong = doStringCommand("PING"); 226 return (pong != null && pong.equals("PONG")); 227 } 228 229 public void setSupplicantLogLevel(String level) { 230 doStringCommand("LOG_LEVEL " + level); 231 } 232 233 public String getFreqCapability() { 234 return doStringCommand("GET_CAPABILITY freq"); 235 } 236 237 public boolean scan(int type, String freqList) { 238 if (type == SCAN_WITHOUT_CONNECTION_SETUP) { 239 if (freqList == null) return doBooleanCommand("SCAN TYPE=ONLY"); 240 else return doBooleanCommand("SCAN TYPE=ONLY freq=" + freqList); 241 } else if (type == SCAN_WITH_CONNECTION_SETUP) { 242 if (freqList == null) return doBooleanCommand("SCAN"); 243 else return doBooleanCommand("SCAN freq=" + freqList); 244 } else { 245 throw new IllegalArgumentException("Invalid scan type"); 246 } 247 } 248 249 /* Does a graceful shutdown of supplicant. Is a common stop function for both p2p and sta. 250 * 251 * Note that underneath we use a harsh-sounding "terminate" supplicant command 252 * for a graceful stop and a mild-sounding "stop" interface 253 * to kill the process 254 */ 255 public boolean stopSupplicant() { 256 return doBooleanCommand("TERMINATE"); 257 } 258 259 public String listNetworks() { 260 return doStringCommand("LIST_NETWORKS"); 261 } 262 263 public String listNetworks(int last_id) { 264 return doStringCommand("LIST_NETWORKS LAST_ID=" + last_id); 265 } 266 267 public int addNetwork() { 268 return doIntCommand("ADD_NETWORK"); 269 } 270 271 public boolean setNetworkVariable(int netId, String name, String value) { 272 if (TextUtils.isEmpty(name) || TextUtils.isEmpty(value)) return false; 273 return doBooleanCommand("SET_NETWORK " + netId + " " + name + " " + value); 274 } 275 276 public String getNetworkVariable(int netId, String name) { 277 if (TextUtils.isEmpty(name)) return null; 278 279 // GET_NETWORK will likely flood the logs ... 280 return doStringCommandWithoutLogging("GET_NETWORK " + netId + " " + name); 281 } 282 283 public boolean removeNetwork(int netId) { 284 return doBooleanCommand("REMOVE_NETWORK " + netId); 285 } 286 287 288 private void logDbg(String debug) { 289 long now = SystemClock.elapsedRealtimeNanos(); 290 String ts = String.format("[%,d us] ", now/1000); 291 Log.e("WifiNative: ", ts+debug+ " stack:" 292 + Thread.currentThread().getStackTrace()[2].getMethodName() +" - " 293 + Thread.currentThread().getStackTrace()[3].getMethodName() +" - " 294 + Thread.currentThread().getStackTrace()[4].getMethodName() +" - " 295 + Thread.currentThread().getStackTrace()[5].getMethodName()+" - " 296 + Thread.currentThread().getStackTrace()[6].getMethodName()); 297 298 } 299 public boolean enableNetwork(int netId, boolean disableOthers) { 300 if (DBG) logDbg("enableNetwork nid=" + Integer.toString(netId) 301 + " disableOthers=" + disableOthers); 302 if (disableOthers) { 303 return doBooleanCommand("SELECT_NETWORK " + netId); 304 } else { 305 return doBooleanCommand("ENABLE_NETWORK " + netId); 306 } 307 } 308 309 public boolean disableNetwork(int netId) { 310 if (DBG) logDbg("disableNetwork nid=" + Integer.toString(netId)); 311 return doBooleanCommand("DISABLE_NETWORK " + netId); 312 } 313 314 public boolean selectNetwork(int netId) { 315 if (DBG) logDbg("selectNetwork nid=" + Integer.toString(netId)); 316 return doBooleanCommand("SELECT_NETWORK " + netId); 317 } 318 319 public boolean reconnect() { 320 if (DBG) logDbg("RECONNECT "); 321 return doBooleanCommand("RECONNECT"); 322 } 323 324 public boolean reassociate() { 325 if (DBG) logDbg("REASSOCIATE "); 326 return doBooleanCommand("REASSOCIATE"); 327 } 328 329 public boolean disconnect() { 330 if (DBG) logDbg("DISCONNECT "); 331 return doBooleanCommand("DISCONNECT"); 332 } 333 334 public String status() { 335 return status(false); 336 } 337 338 public String status(boolean noEvents) { 339 if (noEvents) { 340 return doStringCommand("STATUS-NO_EVENTS"); 341 } else { 342 return doStringCommand("STATUS"); 343 } 344 } 345 346 public String getMacAddress() { 347 //Macaddr = XX.XX.XX.XX.XX.XX 348 String ret = doStringCommand("DRIVER MACADDR"); 349 if (!TextUtils.isEmpty(ret)) { 350 String[] tokens = ret.split(" = "); 351 if (tokens.length == 2) return tokens[1]; 352 } 353 return null; 354 } 355 356 357 358 /** 359 * Format of results: 360 * ================= 361 * id=1 362 * bssid=68:7f:74:d7:1b:6e 363 * freq=2412 364 * level=-43 365 * tsf=1344621975160944 366 * age=2623 367 * flags=[WPA2-PSK-CCMP][WPS][ESS] 368 * ssid=zubyb 369 * ==== 370 * 371 * RANGE=ALL gets all scan results 372 * RANGE=ID- gets results from ID 373 * MASK=<N> see wpa_supplicant/src/common/wpa_ctrl.h for details 374 * 0 0 1 0 2 375 * WPA_BSS_MASK_MESH_SCAN | WPA_BSS_MASK_DELIM | WPA_BSS_MASK_WIFI_DISPLAY 376 * 0 0 0 1 1 -> 9 377 * WPA_BSS_MASK_INTERNETW | WPA_BSS_MASK_P2P_SCAN | WPA_BSS_MASK_WPS_SCAN | WPA_BSS_MASK_SSID 378 * 1 0 0 1 9 -> d 379 * WPA_BSS_MASK_FLAGS | WPA_BSS_MASK_IE | WPA_BSS_MASK_AGE | WPA_BSS_MASK_TSF 380 * 1 0 0 0 8 381 * WPA_BSS_MASK_LEVEL | WPA_BSS_MASK_NOISE | WPA_BSS_MASK_QUAL | WPA_BSS_MASK_CAPABILITIES 382 * 0 1 1 1 7 383 * WPA_BSS_MASK_BEACON_INT | WPA_BSS_MASK_FREQ | WPA_BSS_MASK_BSSID | WPA_BSS_MASK_ID 384 * 385 * WPA_BSS_MASK_INTERNETW adds ANQP info (ctrl_iface:4151-4176) 386 * 387 * ctrl_iface.c:wpa_supplicant_ctrl_iface_process:7884 388 * wpa_supplicant_ctrl_iface_bss:4315 389 * print_bss_info 390 */ 391 public String scanResults(int sid) { 392 return doStringCommandWithoutLogging("BSS RANGE=" + sid + "- MASK=0x29d87"); 393 } 394 395 public String doCustomCommand(String command) { 396 return doStringCommand(command); 397 } 398 399 /** 400 * Format of result: 401 * id=1016 402 * bssid=00:03:7f:40:84:10 403 * freq=2462 404 * beacon_int=200 405 * capabilities=0x0431 406 * qual=0 407 * noise=0 408 * level=-46 409 * tsf=0000002669008476 410 * age=5 411 * ie=00105143412d485332302d52322d54455354010882848b960c12182403010b0706555... 412 * flags=[WPA2-EAP-CCMP][ESS][P2P][HS20] 413 * ssid=QCA-HS20-R2-TEST 414 * p2p_device_name= 415 * p2p_config_methods=0x0SET_NE 416 * anqp_venue_name=02083d656e6757692d466920416c6c69616e63650a3239383920436f... 417 * anqp_network_auth_type=010000 418 * anqp_roaming_consortium=03506f9a05001bc504bd 419 * anqp_ip_addr_type_availability=0c 420 * anqp_nai_realm=0200300000246d61696c2e6578616d706c652e636f6d3b636973636f2... 421 * anqp_3gpp=000600040132f465 422 * anqp_domain_name=0b65786d61706c652e636f6d 423 * hs20_operator_friendly_name=11656e6757692d466920416c6c69616e63650e636869... 424 * hs20_wan_metrics=01c40900008001000000000a00 425 * hs20_connection_capability=0100000006140001061600000650000106bb010106bb0... 426 * hs20_osu_providers_list=0b5143412d4f53552d425353010901310015656e6757692d... 427 */ 428 public String scanResult(String bssid) { 429 return doStringCommand("BSS " + bssid); 430 } 431 432 /** 433 * Format of command 434 * DRIVER WLS_BATCHING SET SCANFREQ=x MSCAN=r BESTN=y CHANNEL=<z, w, t> RTT=s 435 * where x is an ascii representation of an integer number of seconds between scans 436 * r is an ascii representation of an integer number of scans per batch 437 * y is an ascii representation of an integer number of the max AP to remember per scan 438 * z, w, t represent a 1..n size list of channel numbers and/or 'A', 'B' values 439 * indicating entire ranges of channels 440 * s is an ascii representation of an integer number of highest-strength AP 441 * for which we'd like approximate distance reported 442 * 443 * The return value is an ascii integer representing a guess of the number of scans 444 * the firmware can remember before it runs out of buffer space or -1 on error 445 */ 446 public String setBatchedScanSettings(BatchedScanSettings settings) { 447 if (settings == null) { 448 return doStringCommand("DRIVER WLS_BATCHING STOP"); 449 } 450 String cmd = "DRIVER WLS_BATCHING SET SCANFREQ=" + settings.scanIntervalSec; 451 cmd += " MSCAN=" + settings.maxScansPerBatch; 452 if (settings.maxApPerScan != BatchedScanSettings.UNSPECIFIED) { 453 cmd += " BESTN=" + settings.maxApPerScan; 454 } 455 if (settings.channelSet != null && !settings.channelSet.isEmpty()) { 456 cmd += " CHANNEL=<"; 457 int i = 0; 458 for (String channel : settings.channelSet) { 459 cmd += (i > 0 ? "," : "") + channel; 460 ++i; 461 } 462 cmd += ">"; 463 } 464 if (settings.maxApForDistance != BatchedScanSettings.UNSPECIFIED) { 465 cmd += " RTT=" + settings.maxApForDistance; 466 } 467 return doStringCommand(cmd); 468 } 469 470 public String getBatchedScanResults() { 471 return doStringCommand("DRIVER WLS_BATCHING GET"); 472 } 473 474 public boolean startDriver() { 475 return doBooleanCommand("DRIVER START"); 476 } 477 478 public boolean stopDriver() { 479 return doBooleanCommand("DRIVER STOP"); 480 } 481 482 483 /** 484 * Start filtering out Multicast V4 packets 485 * @return {@code true} if the operation succeeded, {@code false} otherwise 486 * 487 * Multicast filtering rules work as follows: 488 * 489 * The driver can filter multicast (v4 and/or v6) and broadcast packets when in 490 * a power optimized mode (typically when screen goes off). 491 * 492 * In order to prevent the driver from filtering the multicast/broadcast packets, we have to 493 * add a DRIVER RXFILTER-ADD rule followed by DRIVER RXFILTER-START to make the rule effective 494 * 495 * DRIVER RXFILTER-ADD Num 496 * where Num = 0 - Unicast, 1 - Broadcast, 2 - Mutil4 or 3 - Multi6 497 * 498 * and DRIVER RXFILTER-START 499 * In order to stop the usage of these rules, we do 500 * 501 * DRIVER RXFILTER-STOP 502 * DRIVER RXFILTER-REMOVE Num 503 * where Num is as described for RXFILTER-ADD 504 * 505 * The SETSUSPENDOPT driver command overrides the filtering rules 506 */ 507 public boolean startFilteringMulticastV4Packets() { 508 return doBooleanCommand("DRIVER RXFILTER-STOP") 509 && doBooleanCommand("DRIVER RXFILTER-REMOVE 2") 510 && doBooleanCommand("DRIVER RXFILTER-START"); 511 } 512 513 /** 514 * Stop filtering out Multicast V4 packets. 515 * @return {@code true} if the operation succeeded, {@code false} otherwise 516 */ 517 public boolean stopFilteringMulticastV4Packets() { 518 return doBooleanCommand("DRIVER RXFILTER-STOP") 519 && doBooleanCommand("DRIVER RXFILTER-ADD 2") 520 && doBooleanCommand("DRIVER RXFILTER-START"); 521 } 522 523 /** 524 * Start filtering out Multicast V6 packets 525 * @return {@code true} if the operation succeeded, {@code false} otherwise 526 */ 527 public boolean startFilteringMulticastV6Packets() { 528 return doBooleanCommand("DRIVER RXFILTER-STOP") 529 && doBooleanCommand("DRIVER RXFILTER-REMOVE 3") 530 && doBooleanCommand("DRIVER RXFILTER-START"); 531 } 532 533 /** 534 * Stop filtering out Multicast V6 packets. 535 * @return {@code true} if the operation succeeded, {@code false} otherwise 536 */ 537 public boolean stopFilteringMulticastV6Packets() { 538 return doBooleanCommand("DRIVER RXFILTER-STOP") 539 && doBooleanCommand("DRIVER RXFILTER-ADD 3") 540 && doBooleanCommand("DRIVER RXFILTER-START"); 541 } 542 543 /** 544 * Set the operational frequency band 545 * @param band One of 546 * {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO}, 547 * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ}, 548 * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}, 549 * @return {@code true} if the operation succeeded, {@code false} otherwise 550 */ 551 public boolean setBand(int band) { 552 String bandstr; 553 554 if (band == WifiManager.WIFI_FREQUENCY_BAND_5GHZ) 555 bandstr = "5G"; 556 else if (band == WifiManager.WIFI_FREQUENCY_BAND_2GHZ) 557 bandstr = "2G"; 558 else 559 bandstr = "AUTO"; 560 return doBooleanCommand("SET SETBAND " + bandstr); 561 } 562 563 /** 564 * Sets the bluetooth coexistence mode. 565 * 566 * @param mode One of {@link #BLUETOOTH_COEXISTENCE_MODE_DISABLED}, 567 * {@link #BLUETOOTH_COEXISTENCE_MODE_ENABLED}, or 568 * {@link #BLUETOOTH_COEXISTENCE_MODE_SENSE}. 569 * @return Whether the mode was successfully set. 570 */ 571 public boolean setBluetoothCoexistenceMode(int mode) { 572 return doBooleanCommand("DRIVER BTCOEXMODE " + mode); 573 } 574 575 /** 576 * Enable or disable Bluetooth coexistence scan mode. When this mode is on, 577 * some of the low-level scan parameters used by the driver are changed to 578 * reduce interference with A2DP streaming. 579 * 580 * @param isSet whether to enable or disable this mode 581 * @return {@code true} if the command succeeded, {@code false} otherwise. 582 */ 583 public boolean setBluetoothCoexistenceScanMode(boolean setCoexScanMode) { 584 if (setCoexScanMode) { 585 return doBooleanCommand("DRIVER BTCOEXSCAN-START"); 586 } else { 587 return doBooleanCommand("DRIVER BTCOEXSCAN-STOP"); 588 } 589 } 590 591 public void enableSaveConfig() { 592 doBooleanCommand("SET update_config 1"); 593 } 594 595 public boolean saveConfig() { 596 return doBooleanCommand("SAVE_CONFIG"); 597 } 598 599 public boolean addToBlacklist(String bssid) { 600 if (TextUtils.isEmpty(bssid)) return false; 601 return doBooleanCommand("BLACKLIST " + bssid); 602 } 603 604 public boolean clearBlacklist() { 605 return doBooleanCommand("BLACKLIST clear"); 606 } 607 608 public boolean setSuspendOptimizations(boolean enabled) { 609 // if (mSuspendOptEnabled == enabled) return true; 610 mSuspendOptEnabled = enabled; 611 612 Log.e("native", "do suspend " + enabled); 613 if (enabled) { 614 return doBooleanCommand("DRIVER SETSUSPENDMODE 1"); 615 } else { 616 return doBooleanCommand("DRIVER SETSUSPENDMODE 0"); 617 } 618 } 619 620 public boolean setCountryCode(String countryCode) { 621 if (countryCode != null) 622 return doBooleanCommand("DRIVER COUNTRY " + countryCode.toUpperCase(Locale.ROOT)); 623 else 624 return doBooleanCommand("DRIVER COUNTRY"); 625 } 626 627 public void enableBackgroundScan(boolean enable) { 628 if (enable) { 629 doBooleanCommand("SET pno 1"); 630 } else { 631 doBooleanCommand("SET pno 0"); 632 } 633 } 634 635 public void enableAutoConnect(boolean enable) { 636 if (enable) { 637 doBooleanCommand("STA_AUTOCONNECT 1"); 638 } else { 639 doBooleanCommand("STA_AUTOCONNECT 0"); 640 } 641 } 642 643 public void setScanInterval(int scanInterval) { 644 doBooleanCommand("SCAN_INTERVAL " + scanInterval); 645 } 646 647 public void startTdls(String macAddr, boolean enable) { 648 if (enable) { 649 doBooleanCommand("TDLS_DISCOVER " + macAddr); 650 doBooleanCommand("TDLS_SETUP " + macAddr); 651 } else { 652 doBooleanCommand("TDLS_TEARDOWN " + macAddr); 653 } 654 } 655 656 /** Example output: 657 * RSSI=-65 658 * LINKSPEED=48 659 * NOISE=9999 660 * FREQUENCY=0 661 */ 662 public String signalPoll() { 663 return doStringCommandWithoutLogging("SIGNAL_POLL"); 664 } 665 666 /** Example outout: 667 * TXGOOD=396 668 * TXBAD=1 669 */ 670 public String pktcntPoll() { 671 return doStringCommand("PKTCNT_POLL"); 672 } 673 674 public void bssFlush() { 675 doBooleanCommand("BSS_FLUSH 0"); 676 } 677 678 public boolean startWpsPbc(String bssid) { 679 if (TextUtils.isEmpty(bssid)) { 680 return doBooleanCommand("WPS_PBC"); 681 } else { 682 return doBooleanCommand("WPS_PBC " + bssid); 683 } 684 } 685 686 public boolean startWpsPbc(String iface, String bssid) { 687 synchronized (mLock) { 688 if (TextUtils.isEmpty(bssid)) { 689 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC"); 690 } else { 691 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PBC " + bssid); 692 } 693 } 694 } 695 696 public boolean startWpsPinKeypad(String pin) { 697 if (TextUtils.isEmpty(pin)) return false; 698 return doBooleanCommand("WPS_PIN any " + pin); 699 } 700 701 public boolean startWpsPinKeypad(String iface, String pin) { 702 if (TextUtils.isEmpty(pin)) return false; 703 synchronized (mLock) { 704 return doBooleanCommandNative("IFNAME=" + iface + " WPS_PIN any " + pin); 705 } 706 } 707 708 709 public String startWpsPinDisplay(String bssid) { 710 if (TextUtils.isEmpty(bssid)) { 711 return doStringCommand("WPS_PIN any"); 712 } else { 713 return doStringCommand("WPS_PIN " + bssid); 714 } 715 } 716 717 public String startWpsPinDisplay(String iface, String bssid) { 718 synchronized (mLock) { 719 if (TextUtils.isEmpty(bssid)) { 720 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN any"); 721 } else { 722 return doStringCommandNative("IFNAME=" + iface + " WPS_PIN " + bssid); 723 } 724 } 725 } 726 727 public boolean setExternalSim(boolean external) { 728 synchronized (mLock) { 729 String value = external ? "1" : "0"; 730 Log.d(TAG, "Setting external_sim to " + value); 731 return doBooleanCommand("SET external_sim " + value); 732 } 733 } 734 735 public boolean simAuthResponse(int id, String response) { 736 synchronized (mLock) { 737 return doBooleanCommand("CTRL-RSP-SIM-" + id + ":GSM-AUTH" + response); 738 } 739 } 740 741 public boolean simIdentityResponse(int id, String response) { 742 synchronized (mLock) { 743 return doBooleanCommand("CTRL-RSP-IDENTITY-" + id + ":" + response); 744 } 745 } 746 747 /* Configures an access point connection */ 748 public boolean startWpsRegistrar(String bssid, String pin) { 749 if (TextUtils.isEmpty(bssid) || TextUtils.isEmpty(pin)) return false; 750 return doBooleanCommand("WPS_REG " + bssid + " " + pin); 751 } 752 753 public boolean cancelWps() { 754 return doBooleanCommand("WPS_CANCEL"); 755 } 756 757 public boolean setPersistentReconnect(boolean enabled) { 758 int value = (enabled == true) ? 1 : 0; 759 return doBooleanCommand("SET persistent_reconnect " + value); 760 } 761 762 public boolean setDeviceName(String name) { 763 return doBooleanCommand("SET device_name " + name); 764 } 765 766 public boolean setDeviceType(String type) { 767 return doBooleanCommand("SET device_type " + type); 768 } 769 770 public boolean setConfigMethods(String cfg) { 771 return doBooleanCommand("SET config_methods " + cfg); 772 } 773 774 public boolean setManufacturer(String value) { 775 return doBooleanCommand("SET manufacturer " + value); 776 } 777 778 public boolean setModelName(String value) { 779 return doBooleanCommand("SET model_name " + value); 780 } 781 782 public boolean setModelNumber(String value) { 783 return doBooleanCommand("SET model_number " + value); 784 } 785 786 public boolean setSerialNumber(String value) { 787 return doBooleanCommand("SET serial_number " + value); 788 } 789 790 public boolean setP2pSsidPostfix(String postfix) { 791 return doBooleanCommand("SET p2p_ssid_postfix " + postfix); 792 } 793 794 public boolean setP2pGroupIdle(String iface, int time) { 795 synchronized (mLock) { 796 return doBooleanCommandNative("IFNAME=" + iface + " SET p2p_group_idle " + time); 797 } 798 } 799 800 public void setPowerSave(boolean enabled) { 801 if (enabled) { 802 doBooleanCommand("SET ps 1"); 803 } else { 804 doBooleanCommand("SET ps 0"); 805 } 806 } 807 808 public boolean setP2pPowerSave(String iface, boolean enabled) { 809 synchronized (mLock) { 810 if (enabled) { 811 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 1"); 812 } else { 813 return doBooleanCommandNative("IFNAME=" + iface + " P2P_SET ps 0"); 814 } 815 } 816 } 817 818 public boolean setWfdEnable(boolean enable) { 819 return doBooleanCommand("SET wifi_display " + (enable ? "1" : "0")); 820 } 821 822 public boolean setWfdDeviceInfo(String hex) { 823 return doBooleanCommand("WFD_SUBELEM_SET 0 " + hex); 824 } 825 826 /** 827 * "sta" prioritizes STA connection over P2P and "p2p" prioritizes 828 * P2P connection over STA 829 */ 830 public boolean setConcurrencyPriority(String s) { 831 return doBooleanCommand("P2P_SET conc_pref " + s); 832 } 833 834 public boolean p2pFind() { 835 return doBooleanCommand("P2P_FIND"); 836 } 837 838 public boolean p2pFind(int timeout) { 839 if (timeout <= 0) { 840 return p2pFind(); 841 } 842 return doBooleanCommand("P2P_FIND " + timeout); 843 } 844 845 public boolean p2pStopFind() { 846 return doBooleanCommand("P2P_STOP_FIND"); 847 } 848 849 public boolean p2pListen() { 850 return doBooleanCommand("P2P_LISTEN"); 851 } 852 853 public boolean p2pListen(int timeout) { 854 if (timeout <= 0) { 855 return p2pListen(); 856 } 857 return doBooleanCommand("P2P_LISTEN " + timeout); 858 } 859 860 public boolean p2pExtListen(boolean enable, int period, int interval) { 861 if (enable && interval < period) { 862 return false; 863 } 864 return doBooleanCommand("P2P_EXT_LISTEN" 865 + (enable ? (" " + period + " " + interval) : "")); 866 } 867 868 public boolean p2pSetChannel(int lc, int oc) { 869 if (DBG) Log.d(mTAG, "p2pSetChannel: lc="+lc+", oc="+oc); 870 871 if (lc >=1 && lc <= 11) { 872 if (!doBooleanCommand("P2P_SET listen_channel " + lc)) { 873 return false; 874 } 875 } else if (lc != 0) { 876 return false; 877 } 878 879 if (oc >= 1 && oc <= 165 ) { 880 int freq = (oc <= 14 ? 2407 : 5000) + oc * 5; 881 return doBooleanCommand("P2P_SET disallow_freq 1000-" 882 + (freq - 5) + "," + (freq + 5) + "-6000"); 883 } else if (oc == 0) { 884 /* oc==0 disables "P2P_SET disallow_freq" (enables all freqs) */ 885 return doBooleanCommand("P2P_SET disallow_freq \"\""); 886 } 887 888 return false; 889 } 890 891 public boolean p2pFlush() { 892 return doBooleanCommand("P2P_FLUSH"); 893 } 894 895 /* p2p_connect <peer device address> <pbc|pin|PIN#> [label|display|keypad] 896 [persistent] [join|auth] [go_intent=<0..15>] [freq=<in MHz>] */ 897 public String p2pConnect(WifiP2pConfig config, boolean joinExistingGroup) { 898 if (config == null) return null; 899 List<String> args = new ArrayList<String>(); 900 WpsInfo wps = config.wps; 901 args.add(config.deviceAddress); 902 903 switch (wps.setup) { 904 case WpsInfo.PBC: 905 args.add("pbc"); 906 break; 907 case WpsInfo.DISPLAY: 908 if (TextUtils.isEmpty(wps.pin)) { 909 args.add("pin"); 910 } else { 911 args.add(wps.pin); 912 } 913 args.add("display"); 914 break; 915 case WpsInfo.KEYPAD: 916 args.add(wps.pin); 917 args.add("keypad"); 918 break; 919 case WpsInfo.LABEL: 920 args.add(wps.pin); 921 args.add("label"); 922 default: 923 break; 924 } 925 926 if (config.netId == WifiP2pGroup.PERSISTENT_NET_ID) { 927 args.add("persistent"); 928 } 929 930 if (joinExistingGroup) { 931 args.add("join"); 932 } else { 933 //TODO: This can be adapted based on device plugged in state and 934 //device battery state 935 int groupOwnerIntent = config.groupOwnerIntent; 936 if (groupOwnerIntent < 0 || groupOwnerIntent > 15) { 937 groupOwnerIntent = DEFAULT_GROUP_OWNER_INTENT; 938 } 939 args.add("go_intent=" + groupOwnerIntent); 940 } 941 942 String command = "P2P_CONNECT "; 943 for (String s : args) command += s + " "; 944 945 return doStringCommand(command); 946 } 947 948 public boolean p2pCancelConnect() { 949 return doBooleanCommand("P2P_CANCEL"); 950 } 951 952 public boolean p2pProvisionDiscovery(WifiP2pConfig config) { 953 if (config == null) return false; 954 955 switch (config.wps.setup) { 956 case WpsInfo.PBC: 957 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " pbc"); 958 case WpsInfo.DISPLAY: 959 //We are doing display, so provision discovery is keypad 960 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " keypad"); 961 case WpsInfo.KEYPAD: 962 //We are doing keypad, so provision discovery is display 963 return doBooleanCommand("P2P_PROV_DISC " + config.deviceAddress + " display"); 964 default: 965 break; 966 } 967 return false; 968 } 969 970 public boolean p2pGroupAdd(boolean persistent) { 971 if (persistent) { 972 return doBooleanCommand("P2P_GROUP_ADD persistent"); 973 } 974 return doBooleanCommand("P2P_GROUP_ADD"); 975 } 976 977 public boolean p2pGroupAdd(int netId) { 978 return doBooleanCommand("P2P_GROUP_ADD persistent=" + netId); 979 } 980 981 public boolean p2pGroupRemove(String iface) { 982 if (TextUtils.isEmpty(iface)) return false; 983 synchronized (mLock) { 984 return doBooleanCommandNative("IFNAME=" + iface + " P2P_GROUP_REMOVE " + iface); 985 } 986 } 987 988 public boolean p2pReject(String deviceAddress) { 989 return doBooleanCommand("P2P_REJECT " + deviceAddress); 990 } 991 992 /* Invite a peer to a group */ 993 public boolean p2pInvite(WifiP2pGroup group, String deviceAddress) { 994 if (TextUtils.isEmpty(deviceAddress)) return false; 995 996 if (group == null) { 997 return doBooleanCommand("P2P_INVITE peer=" + deviceAddress); 998 } else { 999 return doBooleanCommand("P2P_INVITE group=" + group.getInterface() 1000 + " peer=" + deviceAddress + " go_dev_addr=" + group.getOwner().deviceAddress); 1001 } 1002 } 1003 1004 /* Reinvoke a persistent connection */ 1005 public boolean p2pReinvoke(int netId, String deviceAddress) { 1006 if (TextUtils.isEmpty(deviceAddress) || netId < 0) return false; 1007 1008 return doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + deviceAddress); 1009 } 1010 1011 public String p2pGetSsid(String deviceAddress) { 1012 return p2pGetParam(deviceAddress, "oper_ssid"); 1013 } 1014 1015 public String p2pGetDeviceAddress() { 1016 1017 Log.d(TAG, "p2pGetDeviceAddress"); 1018 1019 String status = null; 1020 1021 /* Explicitly calling the API without IFNAME= prefix to take care of the devices that 1022 don't have p2p0 interface. Supplicant seems to be returning the correct address anyway. */ 1023 1024 synchronized (mLock) { 1025 status = doStringCommandNative("STATUS"); 1026 } 1027 1028 String result = ""; 1029 if (status != null) { 1030 String[] tokens = status.split("\n"); 1031 for (String token : tokens) { 1032 if (token.startsWith("p2p_device_address=")) { 1033 String[] nameValue = token.split("="); 1034 if (nameValue.length != 2) 1035 break; 1036 result = nameValue[1]; 1037 } 1038 } 1039 } 1040 1041 Log.d(TAG, "p2pGetDeviceAddress returning " + result); 1042 return result; 1043 } 1044 1045 public int getGroupCapability(String deviceAddress) { 1046 int gc = 0; 1047 if (TextUtils.isEmpty(deviceAddress)) return gc; 1048 String peerInfo = p2pPeer(deviceAddress); 1049 if (TextUtils.isEmpty(peerInfo)) return gc; 1050 1051 String[] tokens = peerInfo.split("\n"); 1052 for (String token : tokens) { 1053 if (token.startsWith("group_capab=")) { 1054 String[] nameValue = token.split("="); 1055 if (nameValue.length != 2) break; 1056 try { 1057 return Integer.decode(nameValue[1]); 1058 } catch(NumberFormatException e) { 1059 return gc; 1060 } 1061 } 1062 } 1063 return gc; 1064 } 1065 1066 public String p2pPeer(String deviceAddress) { 1067 return doStringCommand("P2P_PEER " + deviceAddress); 1068 } 1069 1070 private String p2pGetParam(String deviceAddress, String key) { 1071 if (deviceAddress == null) return null; 1072 1073 String peerInfo = p2pPeer(deviceAddress); 1074 if (peerInfo == null) return null; 1075 String[] tokens= peerInfo.split("\n"); 1076 1077 key += "="; 1078 for (String token : tokens) { 1079 if (token.startsWith(key)) { 1080 String[] nameValue = token.split("="); 1081 if (nameValue.length != 2) break; 1082 return nameValue[1]; 1083 } 1084 } 1085 return null; 1086 } 1087 1088 public boolean p2pServiceAdd(WifiP2pServiceInfo servInfo) { 1089 /* 1090 * P2P_SERVICE_ADD bonjour <query hexdump> <RDATA hexdump> 1091 * P2P_SERVICE_ADD upnp <version hex> <service> 1092 * 1093 * e.g) 1094 * [Bonjour] 1095 * # IP Printing over TCP (PTR) (RDATA=MyPrinter._ipp._tcp.local.) 1096 * P2P_SERVICE_ADD bonjour 045f697070c00c000c01 094d795072696e746572c027 1097 * # IP Printing over TCP (TXT) (RDATA=txtvers=1,pdl=application/postscript) 1098 * P2P_SERVICE_ADD bonjour 096d797072696e746572045f697070c00c001001 1099 * 09747874766572733d311a70646c3d6170706c69636174696f6e2f706f7374736372797074 1100 * 1101 * [UPnP] 1102 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012 1103 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::upnp:rootdevice 1104 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::urn:schemas-upnp 1105 * -org:device:InternetGatewayDevice:1 1106 * P2P_SERVICE_ADD upnp 10 uuid:6859dede-8574-59ab-9322-123456789012::urn:schemas-upnp 1107 * -org:service:ContentDirectory:2 1108 */ 1109 for (String s : servInfo.getSupplicantQueryList()) { 1110 String command = "P2P_SERVICE_ADD"; 1111 command += (" " + s); 1112 if (!doBooleanCommand(command)) { 1113 return false; 1114 } 1115 } 1116 return true; 1117 } 1118 1119 public boolean p2pServiceDel(WifiP2pServiceInfo servInfo) { 1120 /* 1121 * P2P_SERVICE_DEL bonjour <query hexdump> 1122 * P2P_SERVICE_DEL upnp <version hex> <service> 1123 */ 1124 for (String s : servInfo.getSupplicantQueryList()) { 1125 String command = "P2P_SERVICE_DEL "; 1126 1127 String[] data = s.split(" "); 1128 if (data.length < 2) { 1129 return false; 1130 } 1131 if ("upnp".equals(data[0])) { 1132 command += s; 1133 } else if ("bonjour".equals(data[0])) { 1134 command += data[0]; 1135 command += (" " + data[1]); 1136 } else { 1137 return false; 1138 } 1139 if (!doBooleanCommand(command)) { 1140 return false; 1141 } 1142 } 1143 return true; 1144 } 1145 1146 public boolean p2pServiceFlush() { 1147 return doBooleanCommand("P2P_SERVICE_FLUSH"); 1148 } 1149 1150 public String p2pServDiscReq(String addr, String query) { 1151 String command = "P2P_SERV_DISC_REQ"; 1152 command += (" " + addr); 1153 command += (" " + query); 1154 1155 return doStringCommand(command); 1156 } 1157 1158 public boolean p2pServDiscCancelReq(String id) { 1159 return doBooleanCommand("P2P_SERV_DISC_CANCEL_REQ " + id); 1160 } 1161 1162 /* Set the current mode of miracast operation. 1163 * 0 = disabled 1164 * 1 = operating as source 1165 * 2 = operating as sink 1166 */ 1167 public void setMiracastMode(int mode) { 1168 // Note: optional feature on the driver. It is ok for this to fail. 1169 doBooleanCommand("DRIVER MIRACAST " + mode); 1170 } 1171 1172 public boolean fetchAnqp(String bssid, String subtypes) { 1173 return doBooleanCommand("ANQP_GET " + bssid + " " + subtypes); 1174 } 1175 1176 /* WIFI HAL support */ 1177 1178 private static final String TAG = "WifiNative-HAL"; 1179 private static long sWifiHalHandle = 0; /* used by JNI to save wifi_handle */ 1180 private static long[] sWifiIfaceHandles = null; /* used by JNI to save interface handles */ 1181 private static int sWlan0Index = -1; 1182 private static int sP2p0Index = -1; 1183 1184 private static boolean sHalIsStarted = false; 1185 private static boolean sHalFailed = false; 1186 1187 private static native boolean startHalNative(); 1188 private static native void stopHalNative(); 1189 private static native void waitForHalEventNative(); 1190 1191 private static class MonitorThread extends Thread { 1192 public void run() { 1193 Log.i(TAG, "Waiting for HAL events mWifiHalHandle=" + Long.toString(sWifiHalHandle)); 1194 waitForHalEventNative(); 1195 } 1196 } 1197 1198 synchronized public static boolean startHal() { 1199 Log.i(TAG, "startHal"); 1200 synchronized (mLock) { 1201 if (sHalFailed) 1202 return false; 1203 if (startHalNative() && (getInterfaces() != 0) && (sWlan0Index != -1)) { 1204 new MonitorThread().start(); 1205 sHalIsStarted = true; 1206 return true; 1207 } else { 1208 Log.i(TAG, "Could not start hal"); 1209 sHalIsStarted = false; 1210 sHalFailed = true; 1211 return false; 1212 } 1213 } 1214 } 1215 1216 synchronized public static void stopHal() { 1217 stopHalNative(); 1218 } 1219 1220 private static native int getInterfacesNative(); 1221 1222 synchronized public static int getInterfaces() { 1223 synchronized (mLock) { 1224 if (sWifiIfaceHandles == null) { 1225 int num = getInterfacesNative(); 1226 int wifi_num = 0; 1227 for (int i = 0; i < num; i++) { 1228 String name = getInterfaceNameNative(i); 1229 Log.i(TAG, "interface[" + i + "] = " + name); 1230 if (name.equals("wlan0")) { 1231 sWlan0Index = i; 1232 wifi_num++; 1233 } else if (name.equals("p2p0")) { 1234 sP2p0Index = i; 1235 wifi_num++; 1236 } 1237 } 1238 return wifi_num; 1239 } else { 1240 return sWifiIfaceHandles.length; 1241 } 1242 } 1243 } 1244 1245 private static native String getInterfaceNameNative(int index); 1246 synchronized public static String getInterfaceName(int index) { 1247 return getInterfaceNameNative(index); 1248 } 1249 1250 public static class ScanCapabilities { 1251 public int max_scan_cache_size; // in number of scan results?? 1252 public int max_scan_buckets; 1253 public int max_ap_cache_per_scan; 1254 public int max_rssi_sample_size; 1255 public int max_scan_reporting_threshold; // in number of scan results?? 1256 public int max_hotlist_bssids; 1257 public int max_significant_wifi_change_aps; 1258 } 1259 1260 public static boolean getScanCapabilities(ScanCapabilities capabilities) { 1261 return getScanCapabilitiesNative(sWlan0Index, capabilities); 1262 } 1263 1264 private static native boolean getScanCapabilitiesNative( 1265 int iface, ScanCapabilities capabilities); 1266 1267 private static native boolean startScanNative(int iface, int id, ScanSettings settings); 1268 private static native boolean stopScanNative(int iface, int id); 1269 private static native WifiScanner.ScanData[] getScanResultsNative(int iface, boolean flush); 1270 private static native WifiLinkLayerStats getWifiLinkLayerStatsNative(int iface); 1271 1272 public static class ChannelSettings { 1273 int frequency; 1274 int dwell_time_ms; 1275 boolean passive; 1276 } 1277 1278 public static class BucketSettings { 1279 int bucket; 1280 int band; 1281 int period_ms; 1282 int report_events; 1283 int num_channels; 1284 ChannelSettings channels[]; 1285 } 1286 1287 public static class ScanSettings { 1288 int base_period_ms; 1289 int max_ap_per_scan; 1290 int report_threshold_percent; 1291 int report_threshold_num_scans; 1292 int num_buckets; 1293 BucketSettings buckets[]; 1294 } 1295 1296 public static interface ScanEventHandler { 1297 void onScanResultsAvailable(); 1298 void onFullScanResult(ScanResult fullScanResult); 1299 void onScanStatus(); 1300 void onScanPaused(WifiScanner.ScanData[] data); 1301 void onScanRestarted(); 1302 } 1303 1304 synchronized static void onScanResultsAvailable(int id) { 1305 if (sScanEventHandler != null) { 1306 sScanEventHandler.onScanResultsAvailable(); 1307 } 1308 } 1309 1310 /* scan status, keep these values in sync with gscan.h */ 1311 private static int WIFI_SCAN_BUFFER_FULL = 0; 1312 private static int WIFI_SCAN_COMPLETE = 1; 1313 1314 synchronized static void onScanStatus(int status) { 1315 Log.i(TAG, "Got a scan status changed event, status = " + status); 1316 1317 if (status == WIFI_SCAN_BUFFER_FULL) { 1318 /* we have a separate event to take care of this */ 1319 } else if (status == WIFI_SCAN_COMPLETE) { 1320 if (sScanEventHandler != null) { 1321 sScanEventHandler.onScanStatus(); 1322 } 1323 } 1324 } 1325 1326 synchronized static void onFullScanResult(int id, ScanResult result, byte bytes[]) { 1327 if (DBG) Log.i(TAG, "Got a full scan results event, ssid = " + result.SSID + ", " + 1328 "num = " + bytes.length); 1329 1330 if (sScanEventHandler == null) { 1331 return; 1332 } 1333 1334 int num = 0; 1335 for (int i = 0; i < bytes.length; ) { 1336 int type = bytes[i] & 0xFF; 1337 int len = bytes[i + 1] & 0xFF; 1338 1339 if (i + len + 2 > bytes.length) { 1340 Log.w(TAG, "bad length " + len + " of IE " + type + " from " + result.BSSID); 1341 Log.w(TAG, "ignoring the rest of the IEs"); 1342 break; 1343 } 1344 num++; 1345 i += len + 2; 1346 if (DBG) Log.i(TAG, "bytes[" + i + "] = [" + type + ", " + len + "]" + ", " + 1347 "next = " + i); 1348 } 1349 1350 int secondChanelOffset = 0; 1351 byte channelMode = 0; 1352 byte centerFreqIndex1 = 0; 1353 byte centerFreqIndex2 = 0; 1354 result.is80211McRTTResponder = false; 1355 1356 ScanResult.InformationElement elements[] = new ScanResult.InformationElement[num]; 1357 for (int i = 0, index = 0; i < num; i++) { 1358 int type = bytes[index] & 0xFF; 1359 int len = bytes[index + 1] & 0xFF; 1360 if (DBG) Log.i(TAG, "index = " + index + ", type = " + type + ", len = " + len); 1361 ScanResult.InformationElement elem = new ScanResult.InformationElement(); 1362 elem.id = type; 1363 elem.bytes = new byte[len]; 1364 for (int j = 0; j < len; j++) { 1365 elem.bytes[j] = bytes[index + j + 2]; 1366 } 1367 elements[i] = elem; 1368 int inforStart = index + 2; 1369 index += (len + 2); 1370 1371 if(type == EID_HT_OPERATION) { 1372 secondChanelOffset = bytes[inforStart + 1] & 0x3; 1373 } else if(type == EID_VHT_OPERATION) { 1374 channelMode = bytes[inforStart]; 1375 centerFreqIndex1 = bytes[inforStart + 1]; 1376 centerFreqIndex2 = bytes[inforStart + 2]; 1377 } else if (type == EID_EXTENDED_CAPS) { 1378 int tempIndex = RTT_RESP_ENABLE_BIT / 8; 1379 byte offset = RTT_RESP_ENABLE_BIT % 8; 1380 1381 if(len < tempIndex + 1) { 1382 result.is80211McRTTResponder = false; 1383 } else { 1384 if ((bytes[inforStart + tempIndex] & ((byte)0x1 << offset)) != 0) { 1385 result.is80211McRTTResponder = true; 1386 } else { 1387 result.is80211McRTTResponder = false; 1388 } 1389 } 1390 } 1391 } 1392 //handle RTT related information 1393 if (channelMode != 0) { 1394 // 80 or 160 MHz 1395 result.channelWidth = channelMode + 1; 1396 1397 //convert channel index to frequency in MHz, channel 36 is 5180MHz 1398 result.centerFreq0 = (centerFreqIndex1 - 36) * 5 + 5180; 1399 1400 if(channelMode > 1) { //160MHz 1401 result.centerFreq1 = (centerFreqIndex2 - 36) * 5 + 5180; 1402 } else { 1403 result.centerFreq1 = 0; 1404 } 1405 } else { 1406 //20 or 40 MHz 1407 if (secondChanelOffset != 0) {//40MHz 1408 result.channelWidth = 1; 1409 if (secondChanelOffset == 1) { 1410 result.centerFreq0 = result.frequency + 20; 1411 } else if (secondChanelOffset == 3) { 1412 result.centerFreq0 = result.frequency - 20; 1413 } else { 1414 result.centerFreq0 = 0; 1415 Log.e(TAG, ": Error on secondChanelOffset"); 1416 } 1417 } else { 1418 result.centerFreq0 = 0; 1419 result.centerFreq1 = 0; 1420 } 1421 result.centerFreq1 = 0; 1422 } 1423 if(DBG) { 1424 Log.d(TAG, ":SSID: " + result.SSID + "ChannelWidth is: " + result.channelWidth + 1425 " PrimaryFreq: " + result.frequency +" mCenterfreq0: " + result.centerFreq0 + 1426 " mCenterfreq1: " + result.centerFreq1 + (result.is80211McRTTResponder ? 1427 "Support RTT reponder: " : "Do not support RTT responder")); 1428 } 1429 1430 result.informationElements = elements; 1431 sScanEventHandler.onFullScanResult(result); 1432 } 1433 1434 private static int sScanCmdId = 0; 1435 private static ScanEventHandler sScanEventHandler; 1436 private static ScanSettings sScanSettings; 1437 1438 synchronized public static boolean startScan( 1439 ScanSettings settings, ScanEventHandler eventHandler) { 1440 synchronized (mLock) { 1441 1442 if (sScanCmdId != 0) { 1443 stopScan(); 1444 } else if (sScanSettings != null || sScanEventHandler != null) { 1445 /* current scan is paused; no need to stop it */ 1446 } 1447 1448 sScanCmdId = getNewCmdIdLocked(); 1449 1450 sScanSettings = settings; 1451 sScanEventHandler = eventHandler; 1452 1453 if (startScanNative(sWlan0Index, sScanCmdId, settings) == false) { 1454 sScanEventHandler = null; 1455 sScanSettings = null; 1456 sScanCmdId = 0; 1457 return false; 1458 } 1459 1460 return true; 1461 } 1462 } 1463 1464 synchronized public static void stopScan() { 1465 synchronized (mLock) { 1466 stopScanNative(sWlan0Index, sScanCmdId); 1467 sScanSettings = null; 1468 sScanEventHandler = null; 1469 sScanCmdId = 0; 1470 } 1471 } 1472 1473 synchronized public static void pauseScan() { 1474 synchronized (mLock) { 1475 if (sScanCmdId != 0 && sScanSettings != null && sScanEventHandler != null) { 1476 Log.d(TAG, "Pausing scan"); 1477 WifiScanner.ScanData scanData[] = getScanResultsNative(sWlan0Index, true); 1478 stopScanNative(sWlan0Index, sScanCmdId); 1479 sScanCmdId = 0; 1480 sScanEventHandler.onScanPaused(scanData); 1481 } 1482 } 1483 } 1484 1485 synchronized public static void restartScan() { 1486 synchronized (mLock) { 1487 if (sScanCmdId == 0 && sScanSettings != null && sScanEventHandler != null) { 1488 Log.d(TAG, "Restarting scan"); 1489 ScanEventHandler handler = sScanEventHandler; 1490 ScanSettings settings = sScanSettings; 1491 if (startScan(sScanSettings, sScanEventHandler)) { 1492 sScanEventHandler.onScanRestarted(); 1493 } else { 1494 /* we are still paused; don't change state */ 1495 sScanEventHandler = handler; 1496 sScanSettings = settings; 1497 } 1498 } 1499 } 1500 } 1501 1502 synchronized public static WifiScanner.ScanData[] getScanResults(boolean flush) { 1503 synchronized (mLock) { 1504 return getScanResultsNative(sWlan0Index, flush); 1505 } 1506 } 1507 1508 public static interface HotlistEventHandler { 1509 void onHotlistApFound (ScanResult[] result); 1510 void onHotlistApLost (ScanResult[] result); 1511 } 1512 1513 private static int sHotlistCmdId = 0; 1514 private static HotlistEventHandler sHotlistEventHandler; 1515 1516 private native static boolean setHotlistNative(int iface, int id, 1517 WifiScanner.HotlistSettings settings); 1518 private native static boolean resetHotlistNative(int iface, int id); 1519 1520 synchronized public static boolean setHotlist(WifiScanner.HotlistSettings settings, 1521 HotlistEventHandler eventHandler) { 1522 synchronized (mLock) { 1523 if (sHotlistCmdId != 0) { 1524 return false; 1525 } else { 1526 sHotlistCmdId = getNewCmdIdLocked(); 1527 } 1528 1529 sHotlistEventHandler = eventHandler; 1530 if (setHotlistNative(sWlan0Index, sScanCmdId, settings) == false) { 1531 sHotlistEventHandler = null; 1532 return false; 1533 } 1534 1535 return true; 1536 } 1537 } 1538 1539 synchronized public static void resetHotlist() { 1540 synchronized (mLock) { 1541 if (sHotlistCmdId != 0) { 1542 resetHotlistNative(sWlan0Index, sHotlistCmdId); 1543 sHotlistCmdId = 0; 1544 sHotlistEventHandler = null; 1545 } 1546 } 1547 } 1548 1549 synchronized public static void onHotlistApFound(int id, ScanResult[] results) { 1550 synchronized (mLock) { 1551 if (sHotlistCmdId != 0) { 1552 sHotlistEventHandler.onHotlistApFound(results); 1553 } else { 1554 /* this can happen because of race conditions */ 1555 Log.d(TAG, "Ignoring hotlist AP found event"); 1556 } 1557 } 1558 } 1559 1560 synchronized public static void onHotlistApLost(int id, ScanResult[] results) { 1561 synchronized (mLock) { 1562 if (sHotlistCmdId != 0) { 1563 sHotlistEventHandler.onHotlistApLost(results); 1564 } else { 1565 /* this can happen because of race conditions */ 1566 Log.d(TAG, "Ignoring hotlist AP lost event"); 1567 } 1568 } 1569 } 1570 1571 public static interface SignificantWifiChangeEventHandler { 1572 void onChangesFound(ScanResult[] result); 1573 } 1574 1575 private static SignificantWifiChangeEventHandler sSignificantWifiChangeHandler; 1576 private static int sSignificantWifiChangeCmdId; 1577 1578 private static native boolean trackSignificantWifiChangeNative( 1579 int iface, int id, WifiScanner.WifiChangeSettings settings); 1580 private static native boolean untrackSignificantWifiChangeNative(int iface, int id); 1581 1582 synchronized public static boolean trackSignificantWifiChange( 1583 WifiScanner.WifiChangeSettings settings, SignificantWifiChangeEventHandler handler) { 1584 synchronized (mLock) { 1585 if (sSignificantWifiChangeCmdId != 0) { 1586 return false; 1587 } else { 1588 sSignificantWifiChangeCmdId = getNewCmdIdLocked(); 1589 } 1590 1591 sSignificantWifiChangeHandler = handler; 1592 if (trackSignificantWifiChangeNative(sWlan0Index, sScanCmdId, settings) == false) { 1593 sSignificantWifiChangeHandler = null; 1594 return false; 1595 } 1596 1597 return true; 1598 } 1599 } 1600 1601 synchronized static void untrackSignificantWifiChange() { 1602 synchronized (mLock) { 1603 if (sSignificantWifiChangeCmdId != 0) { 1604 untrackSignificantWifiChangeNative(sWlan0Index, sSignificantWifiChangeCmdId); 1605 sSignificantWifiChangeCmdId = 0; 1606 sSignificantWifiChangeHandler = null; 1607 } 1608 } 1609 } 1610 1611 synchronized static void onSignificantWifiChange(int id, ScanResult[] results) { 1612 synchronized (mLock) { 1613 if (sSignificantWifiChangeCmdId != 0) { 1614 sSignificantWifiChangeHandler.onChangesFound(results); 1615 } else { 1616 /* this can happen because of race conditions */ 1617 Log.d(TAG, "Ignoring significant wifi change"); 1618 } 1619 } 1620 } 1621 1622 synchronized public static WifiLinkLayerStats getWifiLinkLayerStats(String iface) { 1623 // TODO: use correct iface name to Index translation 1624 if (iface == null) return null; 1625 synchronized (mLock) { 1626 if (!sHalIsStarted) 1627 startHal(); 1628 if (sHalIsStarted) 1629 return getWifiLinkLayerStatsNative(sWlan0Index); 1630 } 1631 return null; 1632 } 1633 1634 /* 1635 * NFC-related calls 1636 */ 1637 public String getNfcWpsConfigurationToken(int netId) { 1638 return doStringCommand("WPS_NFC_CONFIG_TOKEN WPS " + netId); 1639 } 1640 1641 public String getNfcHandoverRequest() { 1642 return doStringCommand("NFC_GET_HANDOVER_REQ NDEF P2P-CR"); 1643 } 1644 1645 public String getNfcHandoverSelect() { 1646 return doStringCommand("NFC_GET_HANDOVER_SEL NDEF P2P-CR"); 1647 } 1648 1649 public boolean initiatorReportNfcHandover(String selectMessage) { 1650 return doBooleanCommand("NFC_REPORT_HANDOVER INIT P2P 00 " + selectMessage); 1651 } 1652 1653 public boolean responderReportNfcHandover(String requestMessage) { 1654 return doBooleanCommand("NFC_REPORT_HANDOVER RESP P2P " + requestMessage + " 00"); 1655 } 1656 1657 public static native int getSupportedFeatureSetNative(int iface); 1658 synchronized public static int getSupportedFeatureSet() { 1659 return getSupportedFeatureSetNative(sWlan0Index); 1660 } 1661 1662 /* Rtt related commands/events */ 1663 public static interface RttEventHandler { 1664 void onRttResults(RttManager.RttResult[] result); 1665 } 1666 1667 private static RttEventHandler sRttEventHandler; 1668 private static int sRttCmdId; 1669 1670 synchronized private static void onRttResults(int id, RttManager.RttResult[] results) { 1671 if (id == sRttCmdId) { 1672 Log.d(TAG, "Received " + results.length + " rtt results"); 1673 sRttEventHandler.onRttResults(results); 1674 sRttCmdId = 0; 1675 } else { 1676 Log.d(TAG, "Received event for unknown cmd = " + id + ", current id = " + sRttCmdId); 1677 } 1678 } 1679 1680 private static native boolean requestRangeNative( 1681 int iface, int id, RttManager.RttParams[] params); 1682 private static native boolean cancelRangeRequestNative( 1683 int iface, int id, RttManager.RttParams[] params); 1684 1685 synchronized public static boolean requestRtt( 1686 RttManager.RttParams[] params, RttEventHandler handler) { 1687 synchronized (mLock) { 1688 if (sRttCmdId != 0) { 1689 return false; 1690 } else { 1691 sRttCmdId = getNewCmdIdLocked(); 1692 } 1693 sRttEventHandler = handler; 1694 return requestRangeNative(sWlan0Index, sRttCmdId, params); 1695 } 1696 } 1697 1698 synchronized public static boolean cancelRtt(RttManager.RttParams[] params) { 1699 synchronized(mLock) { 1700 if (sRttCmdId == 0) { 1701 return false; 1702 } 1703 1704 if (cancelRangeRequestNative(sWlan0Index, sRttCmdId, params)) { 1705 sRttEventHandler = null; 1706 return true; 1707 } else { 1708 return false; 1709 } 1710 } 1711 } 1712 1713 private static native boolean setScanningMacOuiNative(int iface, byte[] oui); 1714 1715 synchronized public static boolean setScanningMacOui(byte[] oui) { 1716 synchronized (mLock) { 1717 if (startHal()) { 1718 return setScanningMacOuiNative(sWlan0Index, oui); 1719 } else { 1720 return false; 1721 } 1722 } 1723 } 1724 1725 private static native int[] getChannelsForBandNative( 1726 int iface, int band); 1727 1728 synchronized public static int [] getChannelsForBand(int band) { 1729 synchronized (mLock) { 1730 if (startHal()) { 1731 return getChannelsForBandNative(sWlan0Index, band); 1732 } else { 1733 return null; 1734 } 1735 } 1736 } 1737 1738 1739 private static native boolean setDfsFlagNative(int iface, boolean dfsOn); 1740 synchronized public static boolean setDfsFlag(boolean dfsOn) { 1741 synchronized (mLock) { 1742 if (startHal()) { 1743 return setDfsFlagNative(sWlan0Index, dfsOn); 1744 } else { 1745 return false; 1746 } 1747 } 1748 } 1749 1750 private static native boolean toggleInterfaceNative(int on); 1751 synchronized public static boolean toggleInterface(int on) { 1752 synchronized (mLock) { 1753 if (startHal()) { 1754 return toggleInterfaceNative(0); 1755 } else { 1756 1757 return false; 1758 } 1759 } 1760 } 1761 1762 private static native RttManager.RttCapabilities getRttCapabilitiesNative(int iface); 1763 synchronized public static RttManager.RttCapabilities getRttCapabilities() { 1764 synchronized (mLock) { 1765 if (startHal()) { 1766 return getRttCapabilitiesNative(sWlan0Index); 1767 } else { 1768 return null; 1769 } 1770 } 1771 } 1772 1773 private static native boolean setCountryCodeHalNative(int iface, String CountryCode); 1774 synchronized public static boolean setCountryCodeHal( String CountryCode) { 1775 synchronized (mLock) { 1776 if (startHal()) { 1777 return setCountryCodeHalNative(sWlan0Index, CountryCode); 1778 } else { 1779 return false; 1780 } 1781 } 1782 } 1783 1784 //--------------------------------------------------------------------------------- 1785 1786 /* Wifi Logger commands/events */ 1787 1788 private static native boolean startLogging(int iface); 1789 1790 public static interface WifiLoggerEventHandler { 1791 void onDataAvailable(char data[], int len); 1792 } 1793 1794 private static WifiLoggerEventHandler sWifiLoggerEventHandler = null; 1795 1796 synchronized private static void onDataAvailable(char data[], int len) { 1797 if (sWifiLoggerEventHandler != null) { 1798 sWifiLoggerEventHandler.onDataAvailable(data, len); 1799 } 1800 } 1801} 1802