WifiMonitor.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.NetworkInfo; 20import android.net.wifi.SupplicantState; 21import android.net.wifi.WifiEnterpriseConfig; 22import android.net.wifi.WifiManager; 23import android.net.wifi.WifiSsid; 24import android.net.wifi.p2p.WifiP2pConfig; 25import android.net.wifi.p2p.WifiP2pDevice; 26import android.net.wifi.p2p.WifiP2pGroup; 27import android.net.wifi.p2p.WifiP2pProvDiscEvent; 28import android.net.wifi.p2p.nsd.WifiP2pServiceResponse; 29import android.os.Message; 30import android.os.SystemClock; 31import android.text.TextUtils; 32import android.util.Log; 33 34import com.android.server.wifi.hotspot2.Utils; 35import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus; 36 37import com.android.internal.util.Protocol; 38import com.android.internal.util.StateMachine; 39 40import java.util.HashMap; 41import java.util.List; 42import java.util.regex.Matcher; 43import java.util.regex.Pattern; 44 45/** 46 * Listens for events from the wpa_supplicant server, and passes them on 47 * to the {@link StateMachine} for handling. Runs in its own thread. 48 * 49 * @hide 50 */ 51public class WifiMonitor { 52 53 private static boolean DBG = false; 54 private static final boolean VDBG = false; 55 private static final String TAG = "WifiMonitor"; 56 57 /** Events we receive from the supplicant daemon */ 58 59 private static final int CONNECTED = 1; 60 private static final int DISCONNECTED = 2; 61 private static final int STATE_CHANGE = 3; 62 private static final int SCAN_RESULTS = 4; 63 private static final int LINK_SPEED = 5; 64 private static final int TERMINATING = 6; 65 private static final int DRIVER_STATE = 7; 66 private static final int EAP_FAILURE = 8; 67 private static final int ASSOC_REJECT = 9; 68 private static final int SSID_TEMP_DISABLE = 10; 69 private static final int SSID_REENABLE = 11; 70 private static final int BSS_ADDED = 12; 71 private static final int BSS_REMOVED = 13; 72 private static final int UNKNOWN = 14; 73 74 /** All events coming from the supplicant start with this prefix */ 75 private static final String EVENT_PREFIX_STR = "CTRL-EVENT-"; 76 private static final int EVENT_PREFIX_LEN_STR = EVENT_PREFIX_STR.length(); 77 78 /** All events coming from the supplicant start with this prefix */ 79 private static final String REQUEST_PREFIX_STR = "CTRL-REQ-"; 80 private static final int REQUEST_PREFIX_LEN_STR = REQUEST_PREFIX_STR.length(); 81 82 83 /** All WPA events coming from the supplicant start with this prefix */ 84 private static final String WPA_EVENT_PREFIX_STR = "WPA:"; 85 private static final String PASSWORD_MAY_BE_INCORRECT_STR = 86 "pre-shared key may be incorrect"; 87 88 /* WPS events */ 89 private static final String WPS_SUCCESS_STR = "WPS-SUCCESS"; 90 91 /* Format: WPS-FAIL msg=%d [config_error=%d] [reason=%d (%s)] */ 92 private static final String WPS_FAIL_STR = "WPS-FAIL"; 93 private static final String WPS_FAIL_PATTERN = 94 "WPS-FAIL msg=\\d+(?: config_error=(\\d+))?(?: reason=(\\d+))?"; 95 96 /* config error code values for config_error=%d */ 97 private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12; 98 private static final int CONFIG_AUTH_FAILURE = 18; 99 100 /* reason code values for reason=%d */ 101 private static final int REASON_TKIP_ONLY_PROHIBITED = 1; 102 private static final int REASON_WEP_PROHIBITED = 2; 103 104 private static final String WPS_OVERLAP_STR = "WPS-OVERLAP-DETECTED"; 105 private static final String WPS_TIMEOUT_STR = "WPS-TIMEOUT"; 106 107 /* Hotspot 2.0 ANQP query events */ 108 private static final String GAS_QUERY_PREFIX_STR = "GAS-QUERY-"; 109 private static final String GAS_QUERY_START_STR = "GAS-QUERY-START"; 110 private static final String GAS_QUERY_DONE_STR = "GAS-QUERY-DONE"; 111 private static final String RX_HS20_ANQP_ICON_STR = "RX-HS20-ANQP-ICON"; 112 private static final int RX_HS20_ANQP_ICON_STR_LEN = RX_HS20_ANQP_ICON_STR.length(); 113 114 /* Hotspot 2.0 events */ 115 private static final String HS20_PREFIX_STR = "HS20-"; 116 private static final String HS20_SUB_REM_STR = "HS20-SUBSCRIPTION-REMEDIATION"; 117 private static final String HS20_DEAUTH_STR = "HS20-DEAUTH-IMMINENT-NOTICE"; 118 119 private static final String IDENTITY_STR = "IDENTITY"; 120 121 private static final String SIM_STR = "SIM"; 122 123 124 //used to debug and detect if we miss an event 125 private static int eventLogCounter = 0; 126 127 /** 128 * Names of events from wpa_supplicant (minus the prefix). In the 129 * format descriptions, * "<code>x</code>" 130 * designates a dynamic value that needs to be parsed out from the event 131 * string 132 */ 133 /** 134 * <pre> 135 * CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed 136 * </pre> 137 * <code>xx:xx:xx:xx:xx:xx</code> is the BSSID of the associated access point 138 */ 139 private static final String CONNECTED_STR = "CONNECTED"; 140 /** 141 * <pre> 142 * CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys 143 * </pre> 144 */ 145 private static final String DISCONNECTED_STR = "DISCONNECTED"; 146 /** 147 * <pre> 148 * CTRL-EVENT-STATE-CHANGE x 149 * </pre> 150 * <code>x</code> is the numerical value of the new state. 151 */ 152 private static final String STATE_CHANGE_STR = "STATE-CHANGE"; 153 /** 154 * <pre> 155 * CTRL-EVENT-SCAN-RESULTS ready 156 * </pre> 157 */ 158 private static final String SCAN_RESULTS_STR = "SCAN-RESULTS"; 159 160 /** 161 * <pre> 162 * CTRL-EVENT-LINK-SPEED x Mb/s 163 * </pre> 164 * {@code x} is the link speed in Mb/sec. 165 */ 166 private static final String LINK_SPEED_STR = "LINK-SPEED"; 167 /** 168 * <pre> 169 * CTRL-EVENT-TERMINATING - signal x 170 * </pre> 171 * <code>x</code> is the signal that caused termination. 172 */ 173 private static final String TERMINATING_STR = "TERMINATING"; 174 /** 175 * <pre> 176 * CTRL-EVENT-DRIVER-STATE state 177 * </pre> 178 * <code>state</code> can be HANGED 179 */ 180 private static final String DRIVER_STATE_STR = "DRIVER-STATE"; 181 /** 182 * <pre> 183 * CTRL-EVENT-EAP-FAILURE EAP authentication failed 184 * </pre> 185 */ 186 private static final String EAP_FAILURE_STR = "EAP-FAILURE"; 187 188 /** 189 * This indicates an authentication failure on EAP FAILURE event 190 */ 191 private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed"; 192 193 /** 194 * This indicates an assoc reject event 195 */ 196 private static final String ASSOC_REJECT_STR = "ASSOC-REJECT"; 197 198 /** 199 * This indicates auth or association failure bad enough so as network got disabled 200 * - WPA_PSK auth failure suspecting shared key mismatch 201 * - failed multiple Associations 202 */ 203 private static final String TEMP_DISABLED_STR = "SSID-TEMP-DISABLED"; 204 205 /** 206 * This indicates a previously disabled SSID was reenabled by supplicant 207 */ 208 private static final String REENABLED_STR = "SSID-REENABLED"; 209 210 /** 211 * This indicates supplicant found a given BSS 212 */ 213 private static final String BSS_ADDED_STR = "BSS-ADDED"; 214 215 /** 216 * This indicates supplicant removed a given BSS 217 */ 218 private static final String BSS_REMOVED_STR = "BSS-REMOVED"; 219 220 /** 221 * Regex pattern for extracting an Ethernet-style MAC address from a string. 222 * Matches a strings like the following:<pre> 223 * CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre> 224 */ 225 private static Pattern mConnectedEventPattern = 226 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) "); 227 228 /** 229 * Regex pattern for extracting an Ethernet-style MAC address from a string. 230 * Matches a strings like the following:<pre> 231 * CTRL-EVENT-DISCONNECTED - bssid=ac:22:0b:24:70:74 reason=3 locally_generated=1 232 */ 233 private static Pattern mDisconnectedEventPattern = 234 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 235 "reason=([0-9]+) +locally_generated=([0-1])"); 236 237 /** 238 * Regex pattern for extracting an Ethernet-style MAC address from a string. 239 * Matches a strings like the following:<pre> 240 * CTRL-EVENT-ASSOC-REJECT - bssid=ac:22:0b:24:70:74 status_code=1 241 */ 242 private static Pattern mAssocRejectEventPattern = 243 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 244 "status_code=([0-9]+)"); 245 246 /** 247 * Regex pattern for extracting an Ethernet-style MAC address from a string. 248 * Matches a strings like the following:<pre> 249 * IFNAME=wlan0 Trying to associate with 6c:f3:7f:ae:87:71 250 */ 251 private static final String TARGET_BSSID_STR = "Trying to associate with "; 252 253 private static Pattern mTargetBSSIDPattern = 254 Pattern.compile("Trying to associate with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 255 256 /** 257 * Regex pattern for extracting an Ethernet-style MAC address from a string. 258 * Matches a strings like the following:<pre> 259 * IFNAME=wlan0 Associated with 6c:f3:7f:ae:87:71 260 */ 261 private static final String ASSOCIATED_WITH_STR = "Associated with "; 262 263 private static Pattern mAssociatedPattern = 264 Pattern.compile("Associated with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 265 266 /** 267 * Regex pattern for extracting an external GSM sim authentication request from a string. 268 * Matches a strings like the following:<pre> 269 * CTRL-REQ-SIM-<network id>:GSM-AUTH:<RAND1>:<RAND2>[:<RAND3>] needed for SSID <SSID> 270 * This pattern should find 271 * 0 - id 272 * 1 - Rand1 273 * 2 - Rand2 274 * 3 - Rand3 275 * 4 - SSID 276 */ 277 private static Pattern mRequestGsmAuthPattern = 278 Pattern.compile("SIM-([0-9]*):GSM-AUTH((:[0-9a-f]+)+) needed for SSID (.+)"); 279 280 /** 281 * Regex pattern for extracting SSIDs from request identity string. 282 * Matches a strings like the following:<pre> 283 * CTRL-REQ-IDENTITY-xx:Identity needed for SSID XXXX</pre> 284 */ 285 private static Pattern mRequestIdentityPattern = 286 Pattern.compile("IDENTITY-([0-9]+):Identity needed for SSID (.+)"); 287 288 /** P2P events */ 289 private static final String P2P_EVENT_PREFIX_STR = "P2P"; 290 291 /* P2P-DEVICE-FOUND fa:7b:7a:42:02:13 p2p_dev_addr=fa:7b:7a:42:02:13 pri_dev_type=1-0050F204-1 292 name='p2p-TEST1' config_methods=0x188 dev_capab=0x27 group_capab=0x0 */ 293 private static final String P2P_DEVICE_FOUND_STR = "P2P-DEVICE-FOUND"; 294 295 /* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */ 296 private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST"; 297 298 /* P2P-FIND-STOPPED */ 299 private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED"; 300 301 /* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */ 302 private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST"; 303 304 private static final String P2P_GO_NEG_SUCCESS_STR = "P2P-GO-NEG-SUCCESS"; 305 306 /* P2P-GO-NEG-FAILURE status=x */ 307 private static final String P2P_GO_NEG_FAILURE_STR = "P2P-GO-NEG-FAILURE"; 308 309 private static final String P2P_GROUP_FORMATION_SUCCESS_STR = 310 "P2P-GROUP-FORMATION-SUCCESS"; 311 312 private static final String P2P_GROUP_FORMATION_FAILURE_STR = 313 "P2P-GROUP-FORMATION-FAILURE"; 314 315 /* P2P-GROUP-STARTED p2p-wlan0-0 [client|GO] ssid="DIRECT-W8" freq=2437 316 [psk=2182b2e50e53f260d04f3c7b25ef33c965a3291b9b36b455a82d77fd82ca15bc|passphrase="fKG4jMe3"] 317 go_dev_addr=fa:7b:7a:42:02:13 [PERSISTENT] */ 318 private static final String P2P_GROUP_STARTED_STR = "P2P-GROUP-STARTED"; 319 320 /* P2P-GROUP-REMOVED p2p-wlan0-0 [client|GO] reason=REQUESTED */ 321 private static final String P2P_GROUP_REMOVED_STR = "P2P-GROUP-REMOVED"; 322 323 /* P2P-INVITATION-RECEIVED sa=fa:7b:7a:42:02:13 go_dev_addr=f8:7b:7a:42:02:13 324 bssid=fa:7b:7a:42:82:13 unknown-network */ 325 private static final String P2P_INVITATION_RECEIVED_STR = "P2P-INVITATION-RECEIVED"; 326 327 /* P2P-INVITATION-RESULT status=1 */ 328 private static final String P2P_INVITATION_RESULT_STR = "P2P-INVITATION-RESULT"; 329 330 /* P2P-PROV-DISC-PBC-REQ 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 331 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 332 group_capab=0x0 */ 333 private static final String P2P_PROV_DISC_PBC_REQ_STR = "P2P-PROV-DISC-PBC-REQ"; 334 335 /* P2P-PROV-DISC-PBC-RESP 02:12:47:f2:5a:36 */ 336 private static final String P2P_PROV_DISC_PBC_RSP_STR = "P2P-PROV-DISC-PBC-RESP"; 337 338 /* P2P-PROV-DISC-ENTER-PIN 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 339 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 340 group_capab=0x0 */ 341 private static final String P2P_PROV_DISC_ENTER_PIN_STR = "P2P-PROV-DISC-ENTER-PIN"; 342 /* P2P-PROV-DISC-SHOW-PIN 42:fc:89:e1:e2:27 44490607 p2p_dev_addr=42:fc:89:e1:e2:27 343 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 344 group_capab=0x0 */ 345 private static final String P2P_PROV_DISC_SHOW_PIN_STR = "P2P-PROV-DISC-SHOW-PIN"; 346 /* P2P-PROV-DISC-FAILURE p2p_dev_addr=42:fc:89:e1:e2:27 */ 347 private static final String P2P_PROV_DISC_FAILURE_STR = "P2P-PROV-DISC-FAILURE"; 348 349 /* 350 * Protocol format is as follows.<br> 351 * See the Table.62 in the WiFi Direct specification for the detail. 352 * ______________________________________________________________ 353 * | Length(2byte) | Type(1byte) | TransId(1byte)}| 354 * ______________________________________________________________ 355 * | status(1byte) | vendor specific(variable) | 356 * 357 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300000101 358 * length=3, service type=0(ALL Service), transaction id=1, 359 * status=1(service protocol type not available)<br> 360 * 361 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300020201 362 * length=3, service type=2(UPnP), transaction id=2, 363 * status=1(service protocol type not available) 364 * 365 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 990002030010757569643a3131323 366 * 2646534652d383537342d353961622d393332322d3333333435363738393034343a3 367 * a75726e3a736368656d61732d75706e702d6f72673a736572766963653a436f6e746 368 * 56e744469726563746f72793a322c757569643a36383539646564652d383537342d3 369 * 53961622d393333322d3132333435363738393031323a3a75706e703a726f6f74646 370 * 576696365 371 * length=153,type=2(UPnP),transaction id=3,status=0 372 * 373 * UPnP Protocol format is as follows. 374 * ______________________________________________________ 375 * | Version (1) | USN (Variable) | 376 * 377 * version=0x10(UPnP1.0) data=usn:uuid:1122de4e-8574-59ab-9322-33345678 378 * 9044::urn:schemas-upnp-org:service:ContentDirectory:2,usn:uuid:6859d 379 * ede-8574-59ab-9332-123456789012::upnp:rootdevice 380 * 381 * P2P-SERV-DISC-RESP 58:17:0c:bc:dd:ca 21 1900010200045f6970 382 * 70c00c000c01094d795072696e746572c027 383 * length=25, type=1(Bonjour),transaction id=2,status=0 384 * 385 * Bonjour Protocol format is as follows. 386 * __________________________________________________________ 387 * |DNS Name(Variable)|DNS Type(1)|Version(1)|RDATA(Variable)| 388 * 389 * DNS Name=_ipp._tcp.local.,DNS type=12(PTR), Version=1, 390 * RDATA=MyPrinter._ipp._tcp.local. 391 * 392 */ 393 private static final String P2P_SERV_DISC_RESP_STR = "P2P-SERV-DISC-RESP"; 394 395 private static final String HOST_AP_EVENT_PREFIX_STR = "AP"; 396 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 dev_addr=02:90:4c:a0:92:54 */ 397 private static final String AP_STA_CONNECTED_STR = "AP-STA-CONNECTED"; 398 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 */ 399 private static final String AP_STA_DISCONNECTED_STR = "AP-STA-DISCONNECTED"; 400 private static final String ANQP_DONE_STR = "ANQP-QUERY-DONE"; 401 402 /* Supplicant events reported to a state machine */ 403 private static final int BASE = Protocol.BASE_WIFI_MONITOR; 404 405 /* Connection to supplicant established */ 406 public static final int SUP_CONNECTION_EVENT = BASE + 1; 407 /* Connection to supplicant lost */ 408 public static final int SUP_DISCONNECTION_EVENT = BASE + 2; 409 /* Network connection completed */ 410 public static final int NETWORK_CONNECTION_EVENT = BASE + 3; 411 /* Network disconnection completed */ 412 public static final int NETWORK_DISCONNECTION_EVENT = BASE + 4; 413 /* Scan results are available */ 414 public static final int SCAN_RESULTS_EVENT = BASE + 5; 415 /* Supplicate state changed */ 416 public static final int SUPPLICANT_STATE_CHANGE_EVENT = BASE + 6; 417 /* Password failure and EAP authentication failure */ 418 public static final int AUTHENTICATION_FAILURE_EVENT = BASE + 7; 419 /* WPS success detected */ 420 public static final int WPS_SUCCESS_EVENT = BASE + 8; 421 /* WPS failure detected */ 422 public static final int WPS_FAIL_EVENT = BASE + 9; 423 /* WPS overlap detected */ 424 public static final int WPS_OVERLAP_EVENT = BASE + 10; 425 /* WPS timeout detected */ 426 public static final int WPS_TIMEOUT_EVENT = BASE + 11; 427 /* Driver was hung */ 428 public static final int DRIVER_HUNG_EVENT = BASE + 12; 429 /* SSID was disabled due to auth failure or excessive 430 * connection failures */ 431 public static final int SSID_TEMP_DISABLED = BASE + 13; 432 /* SSID reenabled by supplicant */ 433 public static final int SSID_REENABLED = BASE + 14; 434 435 /* Request Identity */ 436 public static final int SUP_REQUEST_IDENTITY = BASE + 15; 437 438 /* Request SIM Auth */ 439 public static final int SUP_REQUEST_SIM_AUTH = BASE + 16; 440 441 /* P2P events */ 442 public static final int P2P_DEVICE_FOUND_EVENT = BASE + 21; 443 public static final int P2P_DEVICE_LOST_EVENT = BASE + 22; 444 public static final int P2P_GO_NEGOTIATION_REQUEST_EVENT = BASE + 23; 445 public static final int P2P_GO_NEGOTIATION_SUCCESS_EVENT = BASE + 25; 446 public static final int P2P_GO_NEGOTIATION_FAILURE_EVENT = BASE + 26; 447 public static final int P2P_GROUP_FORMATION_SUCCESS_EVENT = BASE + 27; 448 public static final int P2P_GROUP_FORMATION_FAILURE_EVENT = BASE + 28; 449 public static final int P2P_GROUP_STARTED_EVENT = BASE + 29; 450 public static final int P2P_GROUP_REMOVED_EVENT = BASE + 30; 451 public static final int P2P_INVITATION_RECEIVED_EVENT = BASE + 31; 452 public static final int P2P_INVITATION_RESULT_EVENT = BASE + 32; 453 public static final int P2P_PROV_DISC_PBC_REQ_EVENT = BASE + 33; 454 public static final int P2P_PROV_DISC_PBC_RSP_EVENT = BASE + 34; 455 public static final int P2P_PROV_DISC_ENTER_PIN_EVENT = BASE + 35; 456 public static final int P2P_PROV_DISC_SHOW_PIN_EVENT = BASE + 36; 457 public static final int P2P_FIND_STOPPED_EVENT = BASE + 37; 458 public static final int P2P_SERV_DISC_RESP_EVENT = BASE + 38; 459 public static final int P2P_PROV_DISC_FAILURE_EVENT = BASE + 39; 460 461 /* hostap events */ 462 public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41; 463 public static final int AP_STA_CONNECTED_EVENT = BASE + 42; 464 465 /* Indicates assoc reject event */ 466 public static final int ASSOCIATION_REJECTION_EVENT = BASE + 43; 467 public static final int ANQP_DONE_EVENT = BASE + 44; 468 469 /* hotspot 2.0 ANQP events */ 470 public static final int GAS_QUERY_START_EVENT = BASE + 51; 471 public static final int GAS_QUERY_DONE_EVENT = BASE + 52; 472 public static final int RX_HS20_ANQP_ICON_EVENT = BASE + 53; 473 474 /* hotspot 2.0 events */ 475 public static final int HS20_REMEDIATION_EVENT = BASE + 61; 476 public static final int HS20_DEAUTH_EVENT = BASE + 62; 477 478 /** 479 * This indicates a read error on the monitor socket conenction 480 */ 481 private static final String WPA_RECV_ERROR_STR = "recv error"; 482 483 /** 484 * Max errors before we close supplicant connection 485 */ 486 private static final int MAX_RECV_ERRORS = 10; 487 488 private final String mInterfaceName; 489 private final WifiNative mWifiNative; 490 private final StateMachine mStateMachine; 491 private StateMachine mStateMachine2; 492 private boolean mMonitoring; 493 494 // This is a global counter, since it's not monitor specific. However, the existing 495 // implementation forwards all "global" control events like CTRL-EVENT-TERMINATING 496 // to the p2p0 monitor. Is that expected ? It seems a bit surprising. 497 // 498 // TODO: If the p2p0 monitor isn't registered, the behaviour is even more surprising. 499 // The event will be dispatched to all monitors, and each of them will end up incrementing 500 // it in their dispatchXXX method. If we have 5 registered monitors (say), 2 consecutive 501 // recv errors will cause us to disconnect from the supplicant (instead of the intended 10). 502 // 503 // This variable is always accessed and modified under a WifiMonitorSingleton lock. 504 private static int sRecvErrors; 505 506 public WifiMonitor(StateMachine stateMachine, WifiNative wifiNative) { 507 if (DBG) Log.d(TAG, "Creating WifiMonitor"); 508 mWifiNative = wifiNative; 509 mInterfaceName = wifiNative.mInterfaceName; 510 mStateMachine = stateMachine; 511 mStateMachine2 = null; 512 mMonitoring = false; 513 514 WifiMonitorSingleton.sInstance.registerInterfaceMonitor(mInterfaceName, this); 515 } 516 517 void enableVerboseLogging(int verbose) { 518 if (verbose > 0) { 519 DBG = true; 520 } else { 521 DBG = false; 522 } 523 } 524 525 // TODO: temporary hack, should be handle by supplicant manager (new component in future) 526 public void setStateMachine2(StateMachine stateMachine) { 527 mStateMachine2 = stateMachine; 528 } 529 530 public void startMonitoring() { 531 WifiMonitorSingleton.sInstance.startMonitoring(mInterfaceName); 532 } 533 534 public void stopMonitoring() { 535 WifiMonitorSingleton.sInstance.stopMonitoring(mInterfaceName); 536 } 537 538 public void stopSupplicant() { 539 WifiMonitorSingleton.sInstance.stopSupplicant(); 540 } 541 542 public void killSupplicant(boolean p2pSupported) { 543 WifiMonitorSingleton.sInstance.killSupplicant(p2pSupported); 544 } 545 546 private static class WifiMonitorSingleton { 547 private static final WifiMonitorSingleton sInstance = new WifiMonitorSingleton(); 548 549 private final HashMap<String, WifiMonitor> mIfaceMap = new HashMap<String, WifiMonitor>(); 550 private boolean mConnected = false; 551 private WifiNative mWifiNative; 552 553 private WifiMonitorSingleton() { 554 } 555 556 public synchronized void startMonitoring(String iface) { 557 WifiMonitor m = mIfaceMap.get(iface); 558 if (m == null) { 559 Log.e(TAG, "startMonitor called with unknown iface=" + iface); 560 return; 561 } 562 563 Log.d(TAG, "startMonitoring(" + iface + ") with mConnected = " + mConnected); 564 565 if (mConnected) { 566 m.mMonitoring = true; 567 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 568 } else { 569 if (DBG) Log.d(TAG, "connecting to supplicant"); 570 int connectTries = 0; 571 while (true) { 572 if (mWifiNative.connectToSupplicant()) { 573 m.mMonitoring = true; 574 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 575 new MonitorThread(mWifiNative, this).start(); 576 mConnected = true; 577 break; 578 } 579 if (connectTries++ < 5) { 580 try { 581 Thread.sleep(1000); 582 } catch (InterruptedException ignore) { 583 } 584 } else { 585 mIfaceMap.remove(iface); 586 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 587 Log.e(TAG, "startMonitoring(" + iface + ") failed!"); 588 break; 589 } 590 } 591 } 592 } 593 594 public synchronized void stopMonitoring(String iface) { 595 WifiMonitor m = mIfaceMap.get(iface); 596 if (DBG) Log.d(TAG, "stopMonitoring(" + iface + ") = " + m.mStateMachine); 597 m.mMonitoring = false; 598 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 599 } 600 601 public synchronized void registerInterfaceMonitor(String iface, WifiMonitor m) { 602 if (DBG) Log.d(TAG, "registerInterface(" + iface + "+" + m.mStateMachine + ")"); 603 mIfaceMap.put(iface, m); 604 if (mWifiNative == null) { 605 mWifiNative = m.mWifiNative; 606 } 607 } 608 609 public synchronized void unregisterInterfaceMonitor(String iface) { 610 // REVIEW: When should we call this? If this isn't called, then WifiMonitor 611 // objects will remain in the mIfaceMap; and won't ever get deleted 612 613 WifiMonitor m = mIfaceMap.remove(iface); 614 if (DBG) Log.d(TAG, "unregisterInterface(" + iface + "+" + m.mStateMachine + ")"); 615 } 616 617 public synchronized void stopSupplicant() { 618 mWifiNative.stopSupplicant(); 619 } 620 621 public synchronized void killSupplicant(boolean p2pSupported) { 622 String suppState = System.getProperty("init.svc.wpa_supplicant"); 623 if (suppState == null) suppState = "unknown"; 624 String p2pSuppState = System.getProperty("init.svc.p2p_supplicant"); 625 if (p2pSuppState == null) p2pSuppState = "unknown"; 626 627 Log.e(TAG, "killSupplicant p2p" + p2pSupported 628 + " init.svc.wpa_supplicant=" + suppState 629 + " init.svc.p2p_supplicant=" + p2pSuppState); 630 WifiNative.killSupplicant(p2pSupported); 631 mConnected = false; 632 for (WifiMonitor m : mIfaceMap.values()) { 633 m.mMonitoring = false; 634 } 635 } 636 637 private synchronized boolean dispatchEvent(String eventStr) { 638 String iface; 639 // IFNAME=wlan0 ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 640 if (eventStr.startsWith("IFNAME=")) { 641 int space = eventStr.indexOf(' '); 642 if (space != -1) { 643 iface = eventStr.substring(7, space); 644 if (!mIfaceMap.containsKey(iface) && iface.startsWith("p2p-")) { 645 // p2p interfaces are created dynamically, but we have 646 // only one P2p state machine monitoring all of them; look 647 // for it explicitly, and send messages there .. 648 iface = "p2p0"; 649 } 650 eventStr = eventStr.substring(space + 1); 651 } else { 652 // No point dispatching this event to any interface, the dispatched 653 // event string will begin with "IFNAME=" which dispatchEvent can't really 654 // do anything about. 655 Log.e(TAG, "Dropping malformed event (unparsable iface): " + eventStr); 656 return false; 657 } 658 } else { 659 // events without prefix belong to p2p0 monitor 660 iface = "p2p0"; 661 } 662 663 if (VDBG) Log.d(TAG, "Dispatching event to interface: " + iface); 664 665 WifiMonitor m = mIfaceMap.get(iface); 666 if (m != null) { 667 if (m.mMonitoring) { 668 if (m.dispatchEvent(eventStr, iface)) { 669 mConnected = false; 670 return true; 671 } 672 673 return false; 674 } else { 675 if (DBG) Log.d(TAG, "Dropping event because (" + iface + ") is stopped"); 676 return false; 677 } 678 } else { 679 if (DBG) Log.d(TAG, "Sending to all monitors because there's no matching iface"); 680 boolean done = false; 681 boolean isMonitoring = false; 682 boolean isTerminating = false; 683 if (eventStr.startsWith(EVENT_PREFIX_STR) 684 && eventStr.contains(TERMINATING_STR)) { 685 isTerminating = true; 686 } 687 for (WifiMonitor monitor : mIfaceMap.values()) { 688 if (monitor.mMonitoring) { 689 isMonitoring = true; 690 if (monitor.dispatchEvent(eventStr, iface)) { 691 done = true; 692 } 693 } 694 } 695 696 if (!isMonitoring && isTerminating) { 697 done = true; 698 } 699 700 if (done) { 701 mConnected = false; 702 } 703 704 return done; 705 } 706 } 707 } 708 709 private static class MonitorThread extends Thread { 710 private final WifiNative mWifiNative; 711 private final WifiMonitorSingleton mWifiMonitorSingleton; 712 713 public MonitorThread(WifiNative wifiNative, WifiMonitorSingleton wifiMonitorSingleton) { 714 super("WifiMonitor"); 715 mWifiNative = wifiNative; 716 mWifiMonitorSingleton = wifiMonitorSingleton; 717 } 718 719 public void run() { 720 //noinspection InfiniteLoopStatement 721 for (;;) { 722 String eventStr = mWifiNative.waitForEvent(); 723 724 // Skip logging the common but mostly uninteresting scan-results event 725 if (DBG && eventStr.indexOf(SCAN_RESULTS_STR) == -1) { 726 Log.d(TAG, "Event [" + eventStr + "]"); 727 } 728 729 if (mWifiMonitorSingleton.dispatchEvent(eventStr)) { 730 if (DBG) Log.d(TAG, "Disconnecting from the supplicant, no more events"); 731 break; 732 } 733 } 734 } 735 } 736 737 private void logDbg(String debug) { 738 Log.e(TAG, debug/*+ " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 739 +" - "+ Thread.currentThread().getStackTrace()[3].getMethodName() 740 +" - "+ Thread.currentThread().getStackTrace()[4].getMethodName() 741 +" - "+ Thread.currentThread().getStackTrace()[5].getMethodName()*/); 742 } 743 744 /* @return true if the event was supplicant disconnection */ 745 private boolean dispatchEvent(String eventStr, String iface) { 746 747 if (DBG) { 748 // Dont log CTRL-EVENT-BSS-ADDED which are too verbose and not handled 749 if (eventStr != null && !eventStr.contains("CTRL-EVENT-BSS-ADDED")) { 750 logDbg("WifiMonitor:" + iface + " cnt=" + Integer.toString(eventLogCounter) 751 + " dispatchEvent: " + eventStr); 752 } 753 } 754 755 if (!eventStr.startsWith(EVENT_PREFIX_STR)) { 756 if (eventStr.startsWith(WPA_EVENT_PREFIX_STR) && 757 0 < eventStr.indexOf(PASSWORD_MAY_BE_INCORRECT_STR)) { 758 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter); 759 } else if (eventStr.startsWith(WPS_SUCCESS_STR)) { 760 mStateMachine.sendMessage(WPS_SUCCESS_EVENT); 761 } else if (eventStr.startsWith(WPS_FAIL_STR)) { 762 handleWpsFailEvent(eventStr); 763 } else if (eventStr.startsWith(WPS_OVERLAP_STR)) { 764 mStateMachine.sendMessage(WPS_OVERLAP_EVENT); 765 } else if (eventStr.startsWith(WPS_TIMEOUT_STR)) { 766 mStateMachine.sendMessage(WPS_TIMEOUT_EVENT); 767 } else if (eventStr.startsWith(P2P_EVENT_PREFIX_STR)) { 768 handleP2pEvents(eventStr); 769 } else if (eventStr.startsWith(HOST_AP_EVENT_PREFIX_STR)) { 770 handleHostApEvents(eventStr); 771 } else if (eventStr.startsWith(ANQP_DONE_STR)) { 772 try { 773 handleAnqpResult(eventStr); 774 } 775 catch (IllegalArgumentException iae) { 776 Log.e("HS2J", "Bad ANQP event string: '" + eventStr + "': " + iae); 777 } 778 } else if (eventStr.startsWith(GAS_QUERY_PREFIX_STR)) { // !!! clean >>End 779 handleGasQueryEvents(eventStr); 780 } else if (eventStr.startsWith(RX_HS20_ANQP_ICON_STR)) { 781 if (mStateMachine2 != null) 782 mStateMachine2.sendMessage(RX_HS20_ANQP_ICON_EVENT, 783 eventStr.substring(RX_HS20_ANQP_ICON_STR_LEN + 1)); 784 } else if (eventStr.startsWith(HS20_PREFIX_STR)) { // !!! <<End 785 handleHs20Events(eventStr); 786 } else if (eventStr.startsWith(REQUEST_PREFIX_STR)) { 787 handleRequests(eventStr); 788 } else if (eventStr.startsWith(TARGET_BSSID_STR)) { 789 handleTargetBSSIDEvent(eventStr); 790 } else if (eventStr.startsWith(ASSOCIATED_WITH_STR)) { 791 handleAssociatedBSSIDEvent(eventStr); 792 } else { 793 if (DBG) Log.w(TAG, "couldn't identify event type - " + eventStr); 794 } 795 eventLogCounter++; 796 return false; 797 } 798 799 String eventName = eventStr.substring(EVENT_PREFIX_LEN_STR); 800 int nameEnd = eventName.indexOf(' '); 801 if (nameEnd != -1) 802 eventName = eventName.substring(0, nameEnd); 803 if (eventName.length() == 0) { 804 if (DBG) Log.i(TAG, "Received wpa_supplicant event with empty event name"); 805 eventLogCounter++; 806 return false; 807 } 808 /* 809 * Map event name into event enum 810 */ 811 int event; 812 if (eventName.equals(CONNECTED_STR)) 813 event = CONNECTED; 814 else if (eventName.equals(DISCONNECTED_STR)) 815 event = DISCONNECTED; 816 else if (eventName.equals(STATE_CHANGE_STR)) 817 event = STATE_CHANGE; 818 else if (eventName.equals(SCAN_RESULTS_STR)) 819 event = SCAN_RESULTS; 820 else if (eventName.equals(LINK_SPEED_STR)) 821 event = LINK_SPEED; 822 else if (eventName.equals(TERMINATING_STR)) 823 event = TERMINATING; 824 else if (eventName.equals(DRIVER_STATE_STR)) 825 event = DRIVER_STATE; 826 else if (eventName.equals(EAP_FAILURE_STR)) 827 event = EAP_FAILURE; 828 else if (eventName.equals(ASSOC_REJECT_STR)) 829 event = ASSOC_REJECT; 830 else if (eventName.equals(TEMP_DISABLED_STR)) { 831 event = SSID_TEMP_DISABLE; 832 } else if (eventName.equals(REENABLED_STR)) { 833 event = SSID_REENABLE; 834 } else if (eventName.equals(BSS_ADDED_STR)) { 835 event = BSS_ADDED; 836 } else if (eventName.equals(BSS_REMOVED_STR)) { 837 event = BSS_REMOVED; 838 } else 839 event = UNKNOWN; 840 841 String eventData = eventStr; 842 if (event == DRIVER_STATE || event == LINK_SPEED) 843 eventData = eventData.split(" ")[1]; 844 else if (event == STATE_CHANGE || event == EAP_FAILURE) { 845 int ind = eventStr.indexOf(" "); 846 if (ind != -1) { 847 eventData = eventStr.substring(ind + 1); 848 } 849 } else { 850 int ind = eventStr.indexOf(" - "); 851 if (ind != -1) { 852 eventData = eventStr.substring(ind + 3); 853 } 854 } 855 856 if ((event == SSID_TEMP_DISABLE)||(event == SSID_REENABLE)) { 857 String substr = null; 858 int netId = -1; 859 int ind = eventStr.indexOf(" "); 860 if (ind != -1) { 861 substr = eventStr.substring(ind + 1); 862 } 863 if (substr != null) { 864 String status[] = substr.split(" "); 865 for (String key : status) { 866 if (key.regionMatches(0, "id=", 0, 3)) { 867 int idx = 3; 868 netId = 0; 869 while (idx < key.length()) { 870 char c = key.charAt(idx); 871 if ((c >= 0x30) && (c <= 0x39)) { 872 netId *= 10; 873 netId += c - 0x30; 874 idx++; 875 } else { 876 break; 877 } 878 } 879 } 880 } 881 } 882 mStateMachine.sendMessage((event == SSID_TEMP_DISABLE)? 883 SSID_TEMP_DISABLED:SSID_REENABLED, netId, 0, substr); 884 } else if (event == STATE_CHANGE) { 885 handleSupplicantStateChange(eventData); 886 } else if (event == DRIVER_STATE) { 887 handleDriverEvent(eventData); 888 } else if (event == TERMINATING) { 889 /** 890 * Close the supplicant connection if we see 891 * too many recv errors 892 */ 893 if (eventData.startsWith(WPA_RECV_ERROR_STR)) { 894 if (++sRecvErrors > MAX_RECV_ERRORS) { 895 if (DBG) { 896 Log.d(TAG, "too many recv errors, closing connection"); 897 } 898 } else { 899 eventLogCounter++; 900 return false; 901 } 902 } 903 904 // Notify and exit 905 mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT, eventLogCounter); 906 return true; 907 } else if (event == EAP_FAILURE) { 908 if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) { 909 logDbg("WifiMonitor send auth failure (EAP_AUTH_FAILURE) "); 910 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter); 911 } 912 } else if (event == ASSOC_REJECT) { 913 Matcher match = mAssocRejectEventPattern.matcher(eventData); 914 String BSSID = ""; 915 int status = -1; 916 if (!match.find()) { 917 if (DBG) Log.d(TAG, "Assoc Reject: Could not parse assoc reject string"); 918 } else { 919 BSSID = match.group(1); 920 try { 921 status = Integer.parseInt(match.group(2)); 922 } catch (NumberFormatException e) { 923 status = -1; 924 } 925 } 926 mStateMachine.sendMessage(ASSOCIATION_REJECTION_EVENT, eventLogCounter, status, BSSID); 927 } else if (event == BSS_ADDED && !VDBG) { 928 // Ignore that event - it is not handled, and dont log it as it is too verbose 929 } else if (event == BSS_REMOVED && !VDBG) { 930 // Ignore that event - it is not handled, and dont log it as it is too verbose 931 } else { 932 handleEvent(event, eventData); 933 } 934 sRecvErrors = 0; 935 eventLogCounter++; 936 return false; 937 } 938 939 private void handleDriverEvent(String state) { 940 if (state == null) { 941 return; 942 } 943 if (state.equals("HANGED")) { 944 mStateMachine.sendMessage(DRIVER_HUNG_EVENT); 945 } 946 } 947 948 /** 949 * Handle all supplicant events except STATE-CHANGE 950 * @param event the event type 951 * @param remainder the rest of the string following the 952 * event name and " — " 953 */ 954 void handleEvent(int event, String remainder) { 955 if (DBG) { 956 logDbg("handleEvent " + Integer.toString(event) + " " + remainder); 957 } 958 switch (event) { 959 case DISCONNECTED: 960 handleNetworkStateChange(NetworkInfo.DetailedState.DISCONNECTED, remainder); 961 break; 962 963 case CONNECTED: 964 handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED, remainder); 965 break; 966 967 case SCAN_RESULTS: 968 mStateMachine.sendMessage(SCAN_RESULTS_EVENT); 969 break; 970 971 case UNKNOWN: 972 if (DBG) { 973 logDbg("handleEvent unknown: " + Integer.toString(event) + " " + remainder); 974 } 975 break; 976 default: 977 break; 978 } 979 } 980 981 private void handleTargetBSSIDEvent(String eventStr) { 982 String BSSID = null; 983 Matcher match = mTargetBSSIDPattern.matcher(eventStr); 984 if (match.find()) { 985 BSSID = match.group(1); 986 } 987 mStateMachine.sendMessage(WifiStateMachine.CMD_TARGET_BSSID, eventLogCounter, 0, BSSID); 988 } 989 990 private void handleAssociatedBSSIDEvent(String eventStr) { 991 String BSSID = null; 992 Matcher match = mAssociatedPattern.matcher(eventStr); 993 if (match.find()) { 994 BSSID = match.group(1); 995 } 996 mStateMachine.sendMessage(WifiStateMachine.CMD_ASSOCIATED_BSSID, eventLogCounter, 0, BSSID); 997 } 998 999 1000 private void handleWpsFailEvent(String dataString) { 1001 final Pattern p = Pattern.compile(WPS_FAIL_PATTERN); 1002 Matcher match = p.matcher(dataString); 1003 int reason = 0; 1004 if (match.find()) { 1005 String cfgErrStr = match.group(1); 1006 String reasonStr = match.group(2); 1007 1008 if (reasonStr != null) { 1009 int reasonInt = Integer.parseInt(reasonStr); 1010 switch(reasonInt) { 1011 case REASON_TKIP_ONLY_PROHIBITED: 1012 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1013 WifiManager.WPS_TKIP_ONLY_PROHIBITED, 0)); 1014 return; 1015 case REASON_WEP_PROHIBITED: 1016 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1017 WifiManager.WPS_WEP_PROHIBITED, 0)); 1018 return; 1019 default: 1020 reason = reasonInt; 1021 break; 1022 } 1023 } 1024 if (cfgErrStr != null) { 1025 int cfgErrInt = Integer.parseInt(cfgErrStr); 1026 switch(cfgErrInt) { 1027 case CONFIG_AUTH_FAILURE: 1028 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1029 WifiManager.WPS_AUTH_FAILURE, 0)); 1030 return; 1031 case CONFIG_MULTIPLE_PBC_DETECTED: 1032 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1033 WifiManager.WPS_OVERLAP_ERROR, 0)); 1034 return; 1035 default: 1036 if (reason == 0) reason = cfgErrInt; 1037 break; 1038 } 1039 } 1040 } 1041 //For all other errors, return a generic internal error 1042 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1043 WifiManager.ERROR, reason)); 1044 } 1045 1046 /* <event> status=<err> and the special case of <event> reason=FREQ_CONFLICT */ 1047 private P2pStatus p2pError(String dataString) { 1048 P2pStatus err = P2pStatus.UNKNOWN; 1049 String[] tokens = dataString.split(" "); 1050 if (tokens.length < 2) return err; 1051 String[] nameValue = tokens[1].split("="); 1052 if (nameValue.length != 2) return err; 1053 1054 /* Handle the special case of reason=FREQ+CONFLICT */ 1055 if (nameValue[1].equals("FREQ_CONFLICT")) { 1056 return P2pStatus.NO_COMMON_CHANNEL; 1057 } 1058 try { 1059 err = P2pStatus.valueOf(Integer.parseInt(nameValue[1])); 1060 } catch (NumberFormatException e) { 1061 e.printStackTrace(); 1062 } 1063 return err; 1064 } 1065 1066 /** 1067 * Handle p2p events 1068 */ 1069 private void handleP2pEvents(String dataString) { 1070 if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) { 1071 mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, new WifiP2pDevice(dataString)); 1072 } else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) { 1073 mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, new WifiP2pDevice(dataString)); 1074 } else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) { 1075 mStateMachine.sendMessage(P2P_FIND_STOPPED_EVENT); 1076 } else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) { 1077 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_REQUEST_EVENT, 1078 new WifiP2pConfig(dataString)); 1079 } else if (dataString.startsWith(P2P_GO_NEG_SUCCESS_STR)) { 1080 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_SUCCESS_EVENT); 1081 } else if (dataString.startsWith(P2P_GO_NEG_FAILURE_STR)) { 1082 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_FAILURE_EVENT, p2pError(dataString)); 1083 } else if (dataString.startsWith(P2P_GROUP_FORMATION_SUCCESS_STR)) { 1084 mStateMachine.sendMessage(P2P_GROUP_FORMATION_SUCCESS_EVENT); 1085 } else if (dataString.startsWith(P2P_GROUP_FORMATION_FAILURE_STR)) { 1086 mStateMachine.sendMessage(P2P_GROUP_FORMATION_FAILURE_EVENT, p2pError(dataString)); 1087 } else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) { 1088 mStateMachine.sendMessage(P2P_GROUP_STARTED_EVENT, new WifiP2pGroup(dataString)); 1089 } else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) { 1090 mStateMachine.sendMessage(P2P_GROUP_REMOVED_EVENT, new WifiP2pGroup(dataString)); 1091 } else if (dataString.startsWith(P2P_INVITATION_RECEIVED_STR)) { 1092 mStateMachine.sendMessage(P2P_INVITATION_RECEIVED_EVENT, 1093 new WifiP2pGroup(dataString)); 1094 } else if (dataString.startsWith(P2P_INVITATION_RESULT_STR)) { 1095 mStateMachine.sendMessage(P2P_INVITATION_RESULT_EVENT, p2pError(dataString)); 1096 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_REQ_STR)) { 1097 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_REQ_EVENT, 1098 new WifiP2pProvDiscEvent(dataString)); 1099 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_RSP_STR)) { 1100 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_RSP_EVENT, 1101 new WifiP2pProvDiscEvent(dataString)); 1102 } else if (dataString.startsWith(P2P_PROV_DISC_ENTER_PIN_STR)) { 1103 mStateMachine.sendMessage(P2P_PROV_DISC_ENTER_PIN_EVENT, 1104 new WifiP2pProvDiscEvent(dataString)); 1105 } else if (dataString.startsWith(P2P_PROV_DISC_SHOW_PIN_STR)) { 1106 mStateMachine.sendMessage(P2P_PROV_DISC_SHOW_PIN_EVENT, 1107 new WifiP2pProvDiscEvent(dataString)); 1108 } else if (dataString.startsWith(P2P_PROV_DISC_FAILURE_STR)) { 1109 mStateMachine.sendMessage(P2P_PROV_DISC_FAILURE_EVENT); 1110 } else if (dataString.startsWith(P2P_SERV_DISC_RESP_STR)) { 1111 List<WifiP2pServiceResponse> list = WifiP2pServiceResponse.newInstance(dataString); 1112 if (list != null) { 1113 mStateMachine.sendMessage(P2P_SERV_DISC_RESP_EVENT, list); 1114 } else { 1115 Log.e(TAG, "Null service resp " + dataString); 1116 } 1117 } 1118 } 1119 1120 /** 1121 * Handle hostap events 1122 */ 1123 private void handleHostApEvents(String dataString) { 1124 String[] tokens = dataString.split(" "); 1125 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1126 if (tokens[0].equals(AP_STA_CONNECTED_STR)) { 1127 mStateMachine.sendMessage(AP_STA_CONNECTED_EVENT, new WifiP2pDevice(dataString)); 1128 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1129 } else if (tokens[0].equals(AP_STA_DISCONNECTED_STR)) { 1130 mStateMachine.sendMessage(AP_STA_DISCONNECTED_EVENT, new WifiP2pDevice(dataString)); 1131 } 1132 } 1133 1134 private static final String ADDR_STRING = "addr="; 1135 private static final String RESULT_STRING = "result="; 1136 1137 // ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 1138 1139 private void handleAnqpResult(String eventStr) { 1140 int addrPos = eventStr.indexOf(ADDR_STRING); 1141 int resPos = eventStr.indexOf(RESULT_STRING); 1142 if (addrPos < 0 || resPos < 0) { 1143 throw new IllegalArgumentException("Unexpected ANQP result notification"); 1144 } 1145 int eoaddr = eventStr.indexOf(' ', addrPos + ADDR_STRING.length()); 1146 if (eoaddr < 0) { 1147 eoaddr = eventStr.length(); 1148 } 1149 int eoresult = eventStr.indexOf(' ', resPos + RESULT_STRING.length()); 1150 if (eoresult < 0) { 1151 eoresult = eventStr.length(); 1152 } 1153 1154 long bssid = Utils.parseMac(eventStr.substring(addrPos + ADDR_STRING.length(), eoaddr)); 1155 int result = eventStr.substring( 1156 resPos + RESULT_STRING.length(), eoresult).equalsIgnoreCase("success") ? 1 : 0; 1157 1158 Log.d("HS2J", String.format("AQPD %016x %d", bssid, result)); 1159 1160 mStateMachine.sendMessage(ANQP_DONE_EVENT, result, 0, bssid); 1161 } 1162 1163 /** 1164 * Handle ANQP events 1165 */ 1166 private void handleGasQueryEvents(String dataString) { 1167 // hs20 1168 if (mStateMachine2 == null) return; 1169 if (dataString.startsWith(GAS_QUERY_START_STR)) { 1170 mStateMachine2.sendMessage(GAS_QUERY_START_EVENT); 1171 } else if (dataString.startsWith(GAS_QUERY_DONE_STR)) { 1172 String[] dataTokens = dataString.split(" "); 1173 String bssid = null; 1174 int success = 0; 1175 for (String token : dataTokens) { 1176 String[] nameValue = token.split("="); 1177 if (nameValue.length != 2) { 1178 continue; 1179 } 1180 if (nameValue[0].equals("addr")) { 1181 bssid = nameValue[1]; 1182 continue; 1183 } 1184 if (nameValue[0].equals("result")) { 1185 success = nameValue[1].equals("SUCCESS") ? 1 : 0; 1186 continue; 1187 } 1188 } 1189 mStateMachine2.sendMessage(GAS_QUERY_DONE_EVENT, success, 0, bssid); 1190 } else { 1191 if (DBG) Log.d(TAG, "Unknown GAS query event: " + dataString); 1192 } 1193 } 1194 1195 /** 1196 * Handle HS20 events 1197 */ 1198 private void handleHs20Events(String dataString) { 1199 if (mStateMachine2 == null) return; 1200 if (dataString.startsWith(HS20_SUB_REM_STR)) { 1201 // format: HS20-SUBSCRIPTION-REMEDIATION osu_method, url 1202 String[] dataTokens = dataString.split(" "); 1203 int method = -1; 1204 String url = null; 1205 if (dataTokens.length >= 3) { 1206 method = Integer.parseInt(dataTokens[1]); 1207 url = dataTokens[2]; 1208 } 1209 mStateMachine2.sendMessage(HS20_REMEDIATION_EVENT, method, 0, url); 1210 } else if (dataString.startsWith(HS20_DEAUTH_STR)) { 1211 // format: HS20-DEAUTH-IMMINENT-NOTICE code, delay, url 1212 int code = -1; 1213 int delay = -1; 1214 String url = null; 1215 String[] dataTokens = dataString.split(" "); 1216 if (dataTokens.length >= 4) { 1217 code = Integer.parseInt(dataTokens[1]); 1218 delay = Integer.parseInt(dataTokens[2]); 1219 url = dataTokens[3]; 1220 } 1221 mStateMachine2.sendMessage(HS20_DEAUTH_EVENT, code, delay, url); 1222 } else { 1223 if (DBG) Log.d(TAG, "Unknown HS20 event: " + dataString); 1224 } 1225 } 1226 1227 /** 1228 * Handle Supplicant Requests 1229 */ 1230 private void handleRequests(String dataString) { 1231 String SSID = null; 1232 int reason = -2; 1233 String requestName = dataString.substring(REQUEST_PREFIX_LEN_STR); 1234 if (TextUtils.isEmpty(requestName)) { 1235 return; 1236 } 1237 if (requestName.startsWith(IDENTITY_STR)) { 1238 Matcher match = mRequestIdentityPattern.matcher(requestName); 1239 if (match.find()) { 1240 SSID = match.group(2); 1241 try { 1242 reason = Integer.parseInt(match.group(1)); 1243 } catch (NumberFormatException e) { 1244 reason = -1; 1245 } 1246 } else { 1247 Log.e(TAG, "didn't find SSID " + requestName); 1248 } 1249 mStateMachine.sendMessage(SUP_REQUEST_IDENTITY, eventLogCounter, reason, SSID); 1250 } else if (requestName.startsWith(SIM_STR)) { 1251 Matcher match = mRequestGsmAuthPattern.matcher(requestName); 1252 if (match.find()) { 1253 WifiStateMachine.SimAuthRequestData data = 1254 new WifiStateMachine.SimAuthRequestData(); 1255 data.networkId = Integer.parseInt(match.group(1)); 1256 data.protocol = WifiEnterpriseConfig.Eap.SIM; 1257 data.ssid = match.group(4); 1258 data.challenges = match.group(2).split(":"); 1259 mStateMachine.sendMessage(SUP_REQUEST_SIM_AUTH, data); 1260 } else { 1261 Log.e(TAG, "couldn't parse SIM auth request - " + requestName); 1262 } 1263 1264 } else { 1265 if (DBG) Log.w(TAG, "couldn't identify request type - " + dataString); 1266 } 1267 } 1268 1269 /** 1270 * Handle the supplicant STATE-CHANGE event 1271 * @param dataString New supplicant state string in the format: 1272 * id=network-id state=new-state 1273 */ 1274 private void handleSupplicantStateChange(String dataString) { 1275 WifiSsid wifiSsid = null; 1276 int index = dataString.lastIndexOf("SSID="); 1277 if (index != -1) { 1278 wifiSsid = WifiSsid.createFromAsciiEncoded( 1279 dataString.substring(index + 5)); 1280 } 1281 String[] dataTokens = dataString.split(" "); 1282 1283 String BSSID = null; 1284 int networkId = -1; 1285 int newState = -1; 1286 for (String token : dataTokens) { 1287 String[] nameValue = token.split("="); 1288 if (nameValue.length != 2) { 1289 continue; 1290 } 1291 1292 if (nameValue[0].equals("BSSID")) { 1293 BSSID = nameValue[1]; 1294 continue; 1295 } 1296 1297 int value; 1298 try { 1299 value = Integer.parseInt(nameValue[1]); 1300 } catch (NumberFormatException e) { 1301 continue; 1302 } 1303 1304 if (nameValue[0].equals("id")) { 1305 networkId = value; 1306 } else if (nameValue[0].equals("state")) { 1307 newState = value; 1308 } 1309 } 1310 1311 if (newState == -1) return; 1312 1313 SupplicantState newSupplicantState = SupplicantState.INVALID; 1314 for (SupplicantState state : SupplicantState.values()) { 1315 if (state.ordinal() == newState) { 1316 newSupplicantState = state; 1317 break; 1318 } 1319 } 1320 if (newSupplicantState == SupplicantState.INVALID) { 1321 Log.w(TAG, "Invalid supplicant state: " + newState); 1322 } 1323 notifySupplicantStateChange(networkId, wifiSsid, BSSID, newSupplicantState); 1324 } 1325 1326 private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data) { 1327 String BSSID = null; 1328 int networkId = -1; 1329 int reason = 0; 1330 int ind = -1; 1331 int local = 0; 1332 Matcher match; 1333 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1334 match = mConnectedEventPattern.matcher(data); 1335 if (!match.find()) { 1336 if (DBG) Log.d(TAG, "handleNetworkStateChange: Couldnt find BSSID in event string"); 1337 } else { 1338 BSSID = match.group(1); 1339 try { 1340 networkId = Integer.parseInt(match.group(2)); 1341 } catch (NumberFormatException e) { 1342 networkId = -1; 1343 } 1344 } 1345 notifyNetworkStateChange(newState, BSSID, networkId, reason); 1346 } else if (newState == NetworkInfo.DetailedState.DISCONNECTED) { 1347 match = mDisconnectedEventPattern.matcher(data); 1348 if (!match.find()) { 1349 if (DBG) Log.d(TAG, "handleNetworkStateChange: Could not parse disconnect string"); 1350 } else { 1351 BSSID = match.group(1); 1352 try { 1353 reason = Integer.parseInt(match.group(2)); 1354 } catch (NumberFormatException e) { 1355 reason = -1; 1356 } 1357 try { 1358 local = Integer.parseInt(match.group(3)); 1359 } catch (NumberFormatException e) { 1360 local = -1; 1361 } 1362 } 1363 notifyNetworkStateChange(newState, BSSID, local, reason); 1364 } 1365 } 1366 1367 /** 1368 * Send the state machine a notification that the state of Wifi connectivity 1369 * has changed. 1370 * @param newState the new network state 1371 * @param BSSID when the new state is {@link NetworkInfo.DetailedState#CONNECTED}, 1372 * this is the MAC address of the access point. Otherwise, it 1373 * is {@code null}. 1374 * @param netId the configured network on which the state change occurred 1375 */ 1376 void notifyNetworkStateChange(NetworkInfo.DetailedState newState, 1377 String BSSID, int netId, int reason) { 1378 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1379 Message m = mStateMachine.obtainMessage(NETWORK_CONNECTION_EVENT, 1380 netId, reason, BSSID); 1381 mStateMachine.sendMessage(m); 1382 } else { 1383 1384 Message m = mStateMachine.obtainMessage(NETWORK_DISCONNECTION_EVENT, 1385 netId, reason, BSSID); 1386 if (DBG) logDbg("WifiMonitor notify network disconnect: " 1387 + BSSID 1388 + " reason=" + Integer.toString(reason)); 1389 mStateMachine.sendMessage(m); 1390 } 1391 } 1392 1393 /** 1394 * Send the state machine a notification that the state of the supplicant 1395 * has changed. 1396 * @param networkId the configured network on which the state change occurred 1397 * @param wifiSsid network name 1398 * @param BSSID network address 1399 * @param newState the new {@code SupplicantState} 1400 */ 1401 void notifySupplicantStateChange(int networkId, WifiSsid wifiSsid, String BSSID, 1402 SupplicantState newState) { 1403 mStateMachine.sendMessage(mStateMachine.obtainMessage(SUPPLICANT_STATE_CHANGE_EVENT, 1404 eventLogCounter, 0, 1405 new StateChangeResult(networkId, wifiSsid, BSSID, newState))); 1406 } 1407} 1408