AccessPoint.java revision 7094d22022c8e0c6ad71920b101434dded8a276e
1/* 2 * Copyright (C) 2015 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.settingslib.wifi; 18 19import android.content.Context; 20import android.net.ConnectivityManager; 21import android.net.Network; 22import android.net.NetworkCapabilities; 23import android.net.NetworkInfo; 24import android.net.NetworkInfo.DetailedState; 25import android.net.NetworkInfo.State; 26import android.net.wifi.IWifiManager; 27import android.net.wifi.ScanResult; 28import android.net.wifi.WifiConfiguration; 29import android.net.wifi.WifiConfiguration.KeyMgmt; 30import android.net.wifi.WifiInfo; 31import android.net.wifi.WifiManager; 32import android.os.Bundle; 33import android.text.TextUtils; 34import android.os.RemoteException; 35import android.os.ServiceManager; 36import android.util.Log; 37import android.util.LruCache; 38 39import com.android.settingslib.R; 40 41import java.util.Map; 42 43 44public class AccessPoint implements Comparable<AccessPoint> { 45 static final String TAG = "SettingsLib.AccessPoint"; 46 47 /** 48 * Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels 49 */ 50 public static final int LOWER_FREQ_24GHZ = 2400; 51 52 /** 53 * Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels 54 */ 55 public static final int HIGHER_FREQ_24GHZ = 2500; 56 57 /** 58 * Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 59 */ 60 public static final int LOWER_FREQ_5GHZ = 4900; 61 62 /** 63 * Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 64 */ 65 public static final int HIGHER_FREQ_5GHZ = 5900; 66 67 68 /** 69 * Experimental: we should be able to show the user the list of BSSIDs and bands 70 * for that SSID. 71 * For now this data is used only with Verbose Logging so as to show the band and number 72 * of BSSIDs on which that network is seen. 73 */ 74 public LruCache<String, ScanResult> mScanResultCache; 75 private static final String KEY_NETWORKINFO = "key_networkinfo"; 76 private static final String KEY_WIFIINFO = "key_wifiinfo"; 77 private static final String KEY_SCANRESULT = "key_scanresult"; 78 private static final String KEY_CONFIG = "key_config"; 79 80 /** 81 * These values are matched in string arrays -- changes must be kept in sync 82 */ 83 public static final int SECURITY_NONE = 0; 84 public static final int SECURITY_WEP = 1; 85 public static final int SECURITY_PSK = 2; 86 public static final int SECURITY_EAP = 3; 87 88 private static final int PSK_UNKNOWN = 0; 89 private static final int PSK_WPA = 1; 90 private static final int PSK_WPA2 = 2; 91 private static final int PSK_WPA_WPA2 = 3; 92 93 private static final int VISIBILITY_OUTDATED_AGE_IN_MILLI = 20000; 94 private final Context mContext; 95 96 private String ssid; 97 private int security; 98 private int networkId = WifiConfiguration.INVALID_NETWORK_ID; 99 100 private int pskType = PSK_UNKNOWN; 101 102 private WifiConfiguration mConfig; 103 private ScanResult mScanResult; 104 105 private int mRssi = Integer.MAX_VALUE; 106 private long mSeen = 0; 107 108 private WifiInfo mInfo; 109 private NetworkInfo mNetworkInfo; 110 private AccessPointListener mAccessPointListener; 111 112 private Object mTag; 113 114 public AccessPoint(Context context, Bundle savedState) { 115 mContext = context; 116 mConfig = savedState.getParcelable(KEY_CONFIG); 117 if (mConfig != null) { 118 loadConfig(mConfig); 119 } 120 mScanResult = (ScanResult) savedState.getParcelable(KEY_SCANRESULT); 121 if (mScanResult != null) { 122 loadResult(mScanResult); 123 } 124 mInfo = (WifiInfo) savedState.getParcelable(KEY_WIFIINFO); 125 if (savedState.containsKey(KEY_NETWORKINFO)) { 126 mNetworkInfo = savedState.getParcelable(KEY_NETWORKINFO); 127 } 128 update(mInfo, mNetworkInfo); 129 } 130 131 AccessPoint(Context context, ScanResult result) { 132 mContext = context; 133 loadResult(result); 134 } 135 136 AccessPoint(Context context, WifiConfiguration config) { 137 mContext = context; 138 loadConfig(config); 139 } 140 141 @Override 142 public int compareTo(AccessPoint other) { 143 // Active one goes first. 144 if (isActive() && !other.isActive()) return -1; 145 if (!isActive() && other.isActive()) return 1; 146 147 // Reachable one goes before unreachable one. 148 if (mRssi != Integer.MAX_VALUE && other.mRssi == Integer.MAX_VALUE) return -1; 149 if (mRssi == Integer.MAX_VALUE && other.mRssi != Integer.MAX_VALUE) return 1; 150 151 // Configured one goes before unconfigured one. 152 if (networkId != WifiConfiguration.INVALID_NETWORK_ID 153 && other.networkId == WifiConfiguration.INVALID_NETWORK_ID) return -1; 154 if (networkId == WifiConfiguration.INVALID_NETWORK_ID 155 && other.networkId != WifiConfiguration.INVALID_NETWORK_ID) return 1; 156 157 // Sort by signal strength. 158 int difference = WifiManager.compareSignalLevel(other.mRssi, mRssi); 159 if (difference != 0) { 160 return difference; 161 } 162 // Sort by ssid. 163 return ssid.compareToIgnoreCase(other.ssid); 164 } 165 166 @Override 167 public boolean equals(Object other) { 168 if (!(other instanceof AccessPoint)) return false; 169 return (this.compareTo((AccessPoint) other) == 0); 170 } 171 172 @Override 173 public int hashCode() { 174 int result = 0; 175 if (mInfo != null) result += 13 * mInfo.hashCode(); 176 result += 19 * mRssi; 177 result += 23 * networkId; 178 result += 29 * ssid.hashCode(); 179 return result; 180 } 181 182 @Override 183 public String toString() { 184 StringBuilder builder = new StringBuilder().append("AccessPoint(") 185 .append(ssid); 186 if (isSaved()) { 187 builder.append(',').append("saved"); 188 } 189 if (isActive()) { 190 builder.append(',').append("active"); 191 } 192 if (isEphemeral()) { 193 builder.append(',').append("ephemeral"); 194 } 195 if (isConnectable()) { 196 builder.append(',').append("connectable"); 197 } 198 if (security != SECURITY_NONE) { 199 builder.append(',').append(securityToString(security, pskType)); 200 } 201 return builder.append(')').toString(); 202 } 203 204 public boolean matches(ScanResult result) { 205 return ssid.equals(result.SSID) && security == getSecurity(result); 206 } 207 208 public boolean matches(WifiConfiguration config) { 209 if (config.isPasspoint() && mConfig != null && mConfig.isPasspoint()) 210 return config.FQDN.equals(mConfig.providerFriendlyName); 211 else 212 return ssid.equals(removeDoubleQuotes(config.SSID)) && security == getSecurity(config); 213 } 214 215 public WifiConfiguration getConfig() { 216 return mConfig; 217 } 218 219 public void clearConfig() { 220 mConfig = null; 221 networkId = WifiConfiguration.INVALID_NETWORK_ID; 222 } 223 224 public WifiInfo getInfo() { 225 return mInfo; 226 } 227 228 public int getLevel() { 229 if (mRssi == Integer.MAX_VALUE) { 230 return -1; 231 } 232 return WifiManager.calculateSignalLevel(mRssi, 4); 233 } 234 235 public NetworkInfo getNetworkInfo() { 236 return mNetworkInfo; 237 } 238 239 public int getSecurity() { 240 return security; 241 } 242 243 public String getSecurityString(boolean concise) { 244 Context context = mContext; 245 switch(security) { 246 case SECURITY_EAP: 247 return concise ? context.getString(R.string.wifi_security_short_eap) : 248 context.getString(R.string.wifi_security_eap); 249 case SECURITY_PSK: 250 switch (pskType) { 251 case PSK_WPA: 252 return concise ? context.getString(R.string.wifi_security_short_wpa) : 253 context.getString(R.string.wifi_security_wpa); 254 case PSK_WPA2: 255 return concise ? context.getString(R.string.wifi_security_short_wpa2) : 256 context.getString(R.string.wifi_security_wpa2); 257 case PSK_WPA_WPA2: 258 return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : 259 context.getString(R.string.wifi_security_wpa_wpa2); 260 case PSK_UNKNOWN: 261 default: 262 return concise ? context.getString(R.string.wifi_security_short_psk_generic) 263 : context.getString(R.string.wifi_security_psk_generic); 264 } 265 case SECURITY_WEP: 266 return concise ? context.getString(R.string.wifi_security_short_wep) : 267 context.getString(R.string.wifi_security_wep); 268 case SECURITY_NONE: 269 default: 270 return concise ? "" : context.getString(R.string.wifi_security_none); 271 } 272 } 273 274 public String getSsid() { 275 return ssid; 276 } 277 278 public String getConfigName() { 279 if (mConfig != null && mConfig.isPasspoint()) { 280 return mConfig.providerFriendlyName; 281 } else { 282 return ssid; 283 } 284 } 285 286 public DetailedState getDetailedState() { 287 return mNetworkInfo != null ? mNetworkInfo.getDetailedState() : null; 288 } 289 290 public String getSavedNetworkSummary() { 291 // Update to new summary 292 if (mConfig != null && mConfig.isPasspoint()) { 293 return ""; 294 } else { 295 return getSettingsSummary(); 296 } 297 } 298 299 public String getSummary() { 300 return getSettingsSummary(); 301 } 302 303 public String getSettingsSummary() { 304 // Update to new summary 305 StringBuilder summary = new StringBuilder(); 306 307 if (isActive() && mConfig != null && mConfig.isPasspoint()) { 308 // This is the active connection on passpoint 309 summary.append(getSummary(mContext, getDetailedState(), 310 false, mConfig.providerFriendlyName)); 311 } else if (isActive()) { 312 // This is the active connection on non-passpoint network 313 summary.append(getSummary(mContext, getDetailedState(), 314 networkId == WifiConfiguration.INVALID_NETWORK_ID)); 315 } else if (mConfig != null && mConfig.isPasspoint()) { 316 String format = mContext.getString(R.string.available_via_passpoint); 317 summary.append(String.format(format, mConfig.providerFriendlyName)); 318 } else if (mConfig != null && mConfig.hasNoInternetAccess()) { 319 summary.append(mContext.getString(R.string.wifi_no_internet)); 320 } else if (mConfig != null && ((mConfig.status == WifiConfiguration.Status.DISABLED && 321 mConfig.disableReason != WifiConfiguration.DISABLED_UNKNOWN_REASON) 322 || mConfig.autoJoinStatus 323 >= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE)) { 324 if (mConfig.autoJoinStatus 325 >= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) { 326 if (mConfig.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE) { 327 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 328 } else if (mConfig.disableReason == WifiConfiguration.DISABLED_AUTH_FAILURE) { 329 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 330 } else { 331 summary.append(mContext.getString(R.string.wifi_disabled_wifi_failure)); 332 } 333 } else { 334 switch (mConfig.disableReason) { 335 case WifiConfiguration.DISABLED_AUTH_FAILURE: 336 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 337 break; 338 case WifiConfiguration.DISABLED_DHCP_FAILURE: 339 case WifiConfiguration.DISABLED_DNS_FAILURE: 340 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 341 break; 342 case WifiConfiguration.DISABLED_UNKNOWN_REASON: 343 case WifiConfiguration.DISABLED_ASSOCIATION_REJECT: 344 summary.append(mContext.getString(R.string.wifi_disabled_generic)); 345 break; 346 } 347 } 348 } else if (mRssi == Integer.MAX_VALUE) { // Wifi out of range 349 summary.append(mContext.getString(R.string.wifi_not_in_range)); 350 } else { // In range, not disabled. 351 if (mConfig != null) { // Is saved network 352 summary.append(mContext.getString(R.string.wifi_remembered)); 353 } 354 } 355 356 if (WifiTracker.sVerboseLogging > 0) { 357 // Add RSSI/band information for this config, what was seen up to 6 seconds ago 358 // verbose WiFi Logging is only turned on thru developers settings 359 if (mInfo != null && mNetworkInfo != null) { // This is the active connection 360 summary.append(" f=" + Integer.toString(mInfo.getFrequency())); 361 } 362 summary.append(" " + getVisibilityStatus()); 363 if (mConfig != null && mConfig.autoJoinStatus > 0) { 364 summary.append(" (" + mConfig.autoJoinStatus); 365 if (mConfig.blackListTimestamp > 0) { 366 long now = System.currentTimeMillis(); 367 long diff = (now - mConfig.blackListTimestamp)/1000; 368 long sec = diff%60; //seconds 369 long min = (diff/60)%60; //minutes 370 long hour = (min/60)%60; //hours 371 summary.append(", "); 372 if (hour > 0) summary.append(Long.toString(hour) + "h "); 373 summary.append( Long.toString(min) + "m "); 374 summary.append( Long.toString(sec) + "s "); 375 } 376 summary.append(")"); 377 } 378 if (mConfig != null && mConfig.numIpConfigFailures > 0) { 379 summary.append(" ipf=").append(mConfig.numIpConfigFailures); 380 } 381 if (mConfig != null && mConfig.numConnectionFailures > 0) { 382 summary.append(" cf=").append(mConfig.numConnectionFailures); 383 } 384 if (mConfig != null && mConfig.numAuthFailures > 0) { 385 summary.append(" authf=").append(mConfig.numAuthFailures); 386 } 387 if (mConfig != null && mConfig.numNoInternetAccessReports > 0) { 388 summary.append(" noInt=").append(mConfig.numNoInternetAccessReports); 389 } 390 } 391 return summary.toString(); 392 } 393 394 /** 395 * Returns the visibility status of the WifiConfiguration. 396 * 397 * @return autojoin debugging information 398 * TODO: use a string formatter 399 * ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"] 400 * For instance [-40,5/-30,2] 401 */ 402 private String getVisibilityStatus() { 403 StringBuilder visibility = new StringBuilder(); 404 StringBuilder scans24GHz = null; 405 StringBuilder scans5GHz = null; 406 String bssid = null; 407 408 long now = System.currentTimeMillis(); 409 410 if (mInfo != null) { 411 bssid = mInfo.getBSSID(); 412 if (bssid != null) { 413 visibility.append(" ").append(bssid); 414 } 415 visibility.append(" rssi=").append(mInfo.getRssi()); 416 visibility.append(" "); 417 visibility.append(" score=").append(mInfo.score); 418 visibility.append(String.format(" tx=%.1f,", mInfo.txSuccessRate)); 419 visibility.append(String.format("%.1f,", mInfo.txRetriesRate)); 420 visibility.append(String.format("%.1f ", mInfo.txBadRate)); 421 visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate)); 422 } 423 424 if (mScanResultCache != null) { 425 int rssi5 = WifiConfiguration.INVALID_RSSI; 426 int rssi24 = WifiConfiguration.INVALID_RSSI; 427 int num5 = 0; 428 int num24 = 0; 429 int numBlackListed = 0; 430 int n24 = 0; // Number scan results we included in the string 431 int n5 = 0; // Number scan results we included in the string 432 Map<String, ScanResult> list = mScanResultCache.snapshot(); 433 // TODO: sort list by RSSI or age 434 for (ScanResult result : list.values()) { 435 if (result.seen == 0) 436 continue; 437 438 if (result.autoJoinStatus != ScanResult.ENABLED) numBlackListed++; 439 440 if (result.frequency >= LOWER_FREQ_5GHZ 441 && result.frequency <= HIGHER_FREQ_5GHZ) { 442 // Strictly speaking: [4915, 5825] 443 // number of known BSSID on 5GHz band 444 num5 = num5 + 1; 445 } else if (result.frequency >= LOWER_FREQ_24GHZ 446 && result.frequency <= HIGHER_FREQ_24GHZ) { 447 // Strictly speaking: [2412, 2482] 448 // number of known BSSID on 2.4Ghz band 449 num24 = num24 + 1; 450 } 451 452 // Ignore results seen, older than 20 seconds 453 if (now - result.seen > VISIBILITY_OUTDATED_AGE_IN_MILLI) continue; 454 455 if (result.frequency >= LOWER_FREQ_5GHZ 456 && result.frequency <= HIGHER_FREQ_5GHZ) { 457 if (result.level > rssi5) { 458 rssi5 = result.level; 459 } 460 if (n5 < 4) { 461 if (scans5GHz == null) scans5GHz = new StringBuilder(); 462 scans5GHz.append(" \n{").append(result.BSSID); 463 if (bssid != null && result.BSSID.equals(bssid)) scans5GHz.append("*"); 464 scans5GHz.append("=").append(result.frequency); 465 scans5GHz.append(",").append(result.level); 466 if (result.autoJoinStatus != 0) { 467 scans5GHz.append(",st=").append(result.autoJoinStatus); 468 } 469 if (result.numIpConfigFailures != 0) { 470 scans5GHz.append(",ipf=").append(result.numIpConfigFailures); 471 } 472 scans5GHz.append("}"); 473 n5++; 474 } 475 } else if (result.frequency >= LOWER_FREQ_24GHZ 476 && result.frequency <= HIGHER_FREQ_24GHZ) { 477 if (result.level > rssi24) { 478 rssi24 = result.level; 479 } 480 if (n24 < 4) { 481 if (scans24GHz == null) scans24GHz = new StringBuilder(); 482 scans24GHz.append(" \n{").append(result.BSSID); 483 if (bssid != null && result.BSSID.equals(bssid)) scans24GHz.append("*"); 484 scans24GHz.append("=").append(result.frequency); 485 scans24GHz.append(",").append(result.level); 486 if (result.autoJoinStatus != 0) { 487 scans24GHz.append(",st=").append(result.autoJoinStatus); 488 } 489 if (result.numIpConfigFailures != 0) { 490 scans24GHz.append(",ipf=").append(result.numIpConfigFailures); 491 } 492 scans24GHz.append("}"); 493 n24++; 494 } 495 } 496 } 497 visibility.append(" ["); 498 if (num24 > 0) { 499 visibility.append("(").append(num24).append(")"); 500 if (n24 <= 4) { 501 if (scans24GHz != null) { 502 visibility.append(scans24GHz.toString()); 503 } 504 } else { 505 visibility.append("max=").append(rssi24); 506 if (scans24GHz != null) { 507 visibility.append(",").append(scans24GHz.toString()); 508 } 509 } 510 } 511 visibility.append(";"); 512 if (num5 > 0) { 513 visibility.append("(").append(num5).append(")"); 514 if (n5 <= 4) { 515 if (scans5GHz != null) { 516 visibility.append(scans5GHz.toString()); 517 } 518 } else { 519 visibility.append("max=").append(rssi5); 520 if (scans5GHz != null) { 521 visibility.append(",").append(scans5GHz.toString()); 522 } 523 } 524 } 525 if (numBlackListed > 0) 526 visibility.append("!").append(numBlackListed); 527 visibility.append("]"); 528 } else { 529 if (mRssi != Integer.MAX_VALUE) { 530 visibility.append(" rssi="); 531 visibility.append(mRssi); 532 if (mScanResult != null) { 533 visibility.append(", f="); 534 visibility.append(mScanResult.frequency); 535 } 536 } 537 } 538 539 return visibility.toString(); 540 } 541 542 /** 543 * Return whether this is the active connection. 544 * For ephemeral connections (networkId is invalid), this returns false if the network is 545 * disconnected. 546 */ 547 public boolean isActive() { 548 return mNetworkInfo != null && 549 (networkId != WifiConfiguration.INVALID_NETWORK_ID || 550 mNetworkInfo.getState() != State.DISCONNECTED); 551 } 552 553 public boolean isConnectable() { 554 return getLevel() != -1 && getDetailedState() == null; 555 } 556 557 public boolean isEphemeral() { 558 return !isSaved() && mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; 559 } 560 561 /** Return whether the given {@link WifiInfo} is for this access point. */ 562 private boolean isInfoForThisAccessPoint(WifiInfo info) { 563 if (networkId != WifiConfiguration.INVALID_NETWORK_ID) { 564 return networkId == info.getNetworkId(); 565 } else { 566 // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. 567 // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). 568 // TODO: Handle hex string SSIDs. 569 return ssid.equals(removeDoubleQuotes(info.getSSID())); 570 } 571 } 572 573 public boolean isSaved() { 574 return networkId != WifiConfiguration.INVALID_NETWORK_ID; 575 } 576 577 public Object getTag() { 578 return mTag; 579 } 580 581 public void setTag(Object tag) { 582 mTag = tag; 583 } 584 585 /** 586 * Generate and save a default wifiConfiguration with common values. 587 * Can only be called for unsecured networks. 588 */ 589 public void generateOpenNetworkConfig() { 590 if (security != SECURITY_NONE) 591 throw new IllegalStateException(); 592 if (mConfig != null) 593 return; 594 mConfig = new WifiConfiguration(); 595 mConfig.SSID = AccessPoint.convertToQuotedString(ssid); 596 mConfig.allowedKeyManagement.set(KeyMgmt.NONE); 597 } 598 599 void loadConfig(WifiConfiguration config) { 600 if (config.isPasspoint()) 601 ssid = config.providerFriendlyName; 602 else 603 ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); 604 605 security = getSecurity(config); 606 networkId = config.networkId; 607 mConfig = config; 608 } 609 610 private void loadResult(ScanResult result) { 611 ssid = result.SSID; 612 security = getSecurity(result); 613 if (security == SECURITY_PSK) 614 pskType = getPskType(result); 615 mRssi = result.level; 616 mScanResult = result; 617 if (result.seen > mSeen) { 618 mSeen = result.seen; 619 } 620 } 621 622 public void saveWifiState(Bundle savedState) { 623 savedState.putParcelable(KEY_CONFIG, mConfig); 624 savedState.putParcelable(KEY_SCANRESULT, mScanResult); 625 savedState.putParcelable(KEY_WIFIINFO, mInfo); 626 if (mNetworkInfo != null) { 627 savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); 628 } 629 } 630 631 public void setListener(AccessPointListener listener) { 632 mAccessPointListener = listener; 633 } 634 635 boolean update(ScanResult result) { 636 if (result.seen > mSeen) { 637 mSeen = result.seen; 638 } 639 if (WifiTracker.sVerboseLogging > 0) { 640 if (mScanResultCache == null) { 641 mScanResultCache = new LruCache<String, ScanResult>(32); 642 } 643 mScanResultCache.put(result.BSSID, result); 644 } 645 646 if (ssid.equals(result.SSID) && security == getSecurity(result)) { 647 if (WifiManager.compareSignalLevel(result.level, mRssi) > 0) { 648 int oldLevel = getLevel(); 649 mRssi = result.level; 650 if (getLevel() != oldLevel && mAccessPointListener != null) { 651 mAccessPointListener.onLevelChanged(this); 652 } 653 } 654 // This flag only comes from scans, is not easily saved in config 655 if (security == SECURITY_PSK) { 656 pskType = getPskType(result); 657 } 658 mScanResult = result; 659 if (mAccessPointListener != null) { 660 mAccessPointListener.onAccessPointChanged(this); 661 } 662 return true; 663 } 664 return false; 665 } 666 667 boolean update(WifiInfo info, NetworkInfo networkInfo) { 668 boolean reorder = false; 669 if (info != null && isInfoForThisAccessPoint(info)) { 670 reorder = (mInfo == null); 671 mRssi = info.getRssi(); 672 mInfo = info; 673 mNetworkInfo = networkInfo; 674 if (mAccessPointListener != null) { 675 mAccessPointListener.onAccessPointChanged(this); 676 } 677 } else if (mInfo != null) { 678 reorder = true; 679 mInfo = null; 680 mNetworkInfo = null; 681 if (mAccessPointListener != null) { 682 mAccessPointListener.onAccessPointChanged(this); 683 } 684 } 685 return reorder; 686 } 687 688 void update(WifiConfiguration config) { 689 mConfig = config; 690 networkId = config.networkId; 691 if (mAccessPointListener != null) { 692 mAccessPointListener.onAccessPointChanged(this); 693 } 694 } 695 696 public static String getSummary(Context context, String ssid, DetailedState state, 697 boolean isEphemeral, String passpointProvider) { 698 if (state == DetailedState.CONNECTED && ssid == null) { 699 if (TextUtils.isEmpty(passpointProvider) == false) { 700 // Special case for connected + passpoint networks. 701 String format = context.getString(R.string.connected_via_passpoint); 702 return String.format(format, passpointProvider); 703 } else if (isEphemeral) { 704 // Special case for connected + ephemeral networks. 705 return context.getString(R.string.connected_via_wfa); 706 } 707 } 708 709 // Case when there is wifi connected without internet connectivity. 710 final ConnectivityManager cm = (ConnectivityManager) 711 context.getSystemService(Context.CONNECTIVITY_SERVICE); 712 if (state == DetailedState.CONNECTED) { 713 IWifiManager wifiManager = IWifiManager.Stub.asInterface( 714 ServiceManager.getService(Context.WIFI_SERVICE)); 715 Network nw; 716 717 try { 718 nw = wifiManager.getCurrentNetwork(); 719 } catch (RemoteException e) { 720 nw = null; 721 } 722 NetworkCapabilities nc = cm.getNetworkCapabilities(nw); 723 if (nc != null && !nc.hasCapability(nc.NET_CAPABILITY_VALIDATED)) { 724 return context.getString(R.string.wifi_connected_no_internet); 725 } 726 } 727 728 String[] formats = context.getResources().getStringArray((ssid == null) 729 ? R.array.wifi_status : R.array.wifi_status_with_ssid); 730 int index = state.ordinal(); 731 732 if (index >= formats.length || formats[index].length() == 0) { 733 return null; 734 } 735 return String.format(formats[index], ssid); 736 } 737 738 public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { 739 return getSummary(context, null, state, isEphemeral, null); 740 } 741 742 public static String getSummary(Context context, DetailedState state, boolean isEphemeral, 743 String passpointProvider) { 744 return getSummary(context, null, state, isEphemeral, passpointProvider); 745 } 746 747 public static String convertToQuotedString(String string) { 748 return "\"" + string + "\""; 749 } 750 751 private static int getPskType(ScanResult result) { 752 boolean wpa = result.capabilities.contains("WPA-PSK"); 753 boolean wpa2 = result.capabilities.contains("WPA2-PSK"); 754 if (wpa2 && wpa) { 755 return PSK_WPA_WPA2; 756 } else if (wpa2) { 757 return PSK_WPA2; 758 } else if (wpa) { 759 return PSK_WPA; 760 } else { 761 Log.w(TAG, "Received abnormal flag string: " + result.capabilities); 762 return PSK_UNKNOWN; 763 } 764 } 765 766 private static int getSecurity(ScanResult result) { 767 if (result.capabilities.contains("WEP")) { 768 return SECURITY_WEP; 769 } else if (result.capabilities.contains("PSK")) { 770 return SECURITY_PSK; 771 } else if (result.capabilities.contains("EAP")) { 772 return SECURITY_EAP; 773 } 774 return SECURITY_NONE; 775 } 776 777 static int getSecurity(WifiConfiguration config) { 778 if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { 779 return SECURITY_PSK; 780 } 781 if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || 782 config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { 783 return SECURITY_EAP; 784 } 785 return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; 786 } 787 788 public static String securityToString(int security, int pskType) { 789 if (security == SECURITY_WEP) { 790 return "WEP"; 791 } else if (security == SECURITY_PSK) { 792 if (pskType == PSK_WPA) { 793 return "WPA"; 794 } else if (pskType == PSK_WPA2) { 795 return "WPA2"; 796 } else if (pskType == PSK_WPA_WPA2) { 797 return "WPA_WPA2"; 798 } 799 return "PSK"; 800 } else if (security == SECURITY_EAP) { 801 return "EAP"; 802 } 803 return "NONE"; 804 } 805 806 static String removeDoubleQuotes(String string) { 807 int length = string.length(); 808 if ((length > 1) && (string.charAt(0) == '"') 809 && (string.charAt(length - 1) == '"')) { 810 return string.substring(1, length - 1); 811 } 812 return string; 813 } 814 815 public interface AccessPointListener { 816 void onAccessPointChanged(AccessPoint accessPoint); 817 void onLevelChanged(AccessPoint accessPoint); 818 } 819} 820