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 17 package com.android.server.wifi; 18 19 import android.net.NetworkInfo; 20 import android.net.wifi.SupplicantState; 21 import android.net.wifi.WifiEnterpriseConfig; 22 import android.net.wifi.WifiManager; 23 import android.net.wifi.WifiSsid; 24 import android.net.wifi.p2p.WifiP2pConfig; 25 import android.net.wifi.p2p.WifiP2pDevice; 26 import android.net.wifi.p2p.WifiP2pGroup; 27 import android.net.wifi.p2p.WifiP2pProvDiscEvent; 28 import android.net.wifi.p2p.nsd.WifiP2pServiceResponse; 29 import android.os.Message; 30 import android.text.TextUtils; 31 import android.util.LocalLog; 32 import android.util.Log; 33 34 import com.android.server.wifi.hotspot2.Utils; 35 import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus; 36 37 import com.android.internal.util.Protocol; 38 import com.android.internal.util.StateMachine; 39 40 import java.util.HashMap; 41 import java.util.List; 42 import java.util.regex.Matcher; 43 import 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 */ 51 public 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 private static final int SCAN_FAILED = 15; 74 75 /** All events coming from the supplicant start with this prefix */ 76 private static final String EVENT_PREFIX_STR = "CTRL-EVENT-"; 77 private static final int EVENT_PREFIX_LEN_STR = EVENT_PREFIX_STR.length(); 78 79 /** All events coming from the supplicant start with this prefix */ 80 private static final String REQUEST_PREFIX_STR = "CTRL-REQ-"; 81 private static final int REQUEST_PREFIX_LEN_STR = REQUEST_PREFIX_STR.length(); 82 83 84 /** All WPA events coming from the supplicant start with this prefix */ 85 private static final String WPA_EVENT_PREFIX_STR = "WPA:"; 86 private static final String PASSWORD_MAY_BE_INCORRECT_STR = 87 "pre-shared key may be incorrect"; 88 89 /* WPS events */ 90 private static final String WPS_SUCCESS_STR = "WPS-SUCCESS"; 91 92 /* Format: WPS-FAIL msg=%d [config_error=%d] [reason=%d (%s)] */ 93 private static final String WPS_FAIL_STR = "WPS-FAIL"; 94 private static final String WPS_FAIL_PATTERN = 95 "WPS-FAIL msg=\\d+(?: config_error=(\\d+))?(?: reason=(\\d+))?"; 96 97 /* config error code values for config_error=%d */ 98 private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12; 99 private static final int CONFIG_AUTH_FAILURE = 18; 100 101 /* reason code values for reason=%d */ 102 private static final int REASON_TKIP_ONLY_PROHIBITED = 1; 103 private static final int REASON_WEP_PROHIBITED = 2; 104 105 private static final String WPS_OVERLAP_STR = "WPS-OVERLAP-DETECTED"; 106 private static final String WPS_TIMEOUT_STR = "WPS-TIMEOUT"; 107 108 /* Hotspot 2.0 ANQP query events */ 109 private static final String GAS_QUERY_PREFIX_STR = "GAS-QUERY-"; 110 private static final String GAS_QUERY_START_STR = "GAS-QUERY-START"; 111 private static final String GAS_QUERY_DONE_STR = "GAS-QUERY-DONE"; 112 private static final String RX_HS20_ANQP_ICON_STR = "RX-HS20-ANQP-ICON"; 113 private static final int RX_HS20_ANQP_ICON_STR_LEN = RX_HS20_ANQP_ICON_STR.length(); 114 115 /* Hotspot 2.0 events */ 116 private static final String HS20_PREFIX_STR = "HS20-"; 117 private static final String HS20_SUB_REM_STR = "HS20-SUBSCRIPTION-REMEDIATION"; 118 private static final String HS20_DEAUTH_STR = "HS20-DEAUTH-IMMINENT-NOTICE"; 119 120 private static final String IDENTITY_STR = "IDENTITY"; 121 122 private static final String SIM_STR = "SIM"; 123 124 125 //used to debug and detect if we miss an event 126 private static int eventLogCounter = 0; 127 128 /** 129 * Names of events from wpa_supplicant (minus the prefix). In the 130 * format descriptions, * "<code>x</code>" 131 * designates a dynamic value that needs to be parsed out from the event 132 * string 133 */ 134 /** 135 * <pre> 136 * CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed 137 * </pre> 138 * <code>xx:xx:xx:xx:xx:xx</code> is the BSSID of the associated access point 139 */ 140 private static final String CONNECTED_STR = "CONNECTED"; 141 /** 142 * <pre> 143 * CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys 144 * </pre> 145 */ 146 private static final String DISCONNECTED_STR = "DISCONNECTED"; 147 /** 148 * <pre> 149 * CTRL-EVENT-STATE-CHANGE x 150 * </pre> 151 * <code>x</code> is the numerical value of the new state. 152 */ 153 private static final String STATE_CHANGE_STR = "STATE-CHANGE"; 154 /** 155 * <pre> 156 * CTRL-EVENT-SCAN-RESULTS ready 157 * </pre> 158 */ 159 private static final String SCAN_RESULTS_STR = "SCAN-RESULTS"; 160 161 /** 162 * <pre> 163 * CTRL-EVENT-SCAN-FAILED ret=code[ retry=1] 164 * </pre> 165 */ 166 private static final String SCAN_FAILED_STR = "SCAN-FAILED"; 167 168 /** 169 * <pre> 170 * CTRL-EVENT-LINK-SPEED x Mb/s 171 * </pre> 172 * {@code x} is the link speed in Mb/sec. 173 */ 174 private static final String LINK_SPEED_STR = "LINK-SPEED"; 175 /** 176 * <pre> 177 * CTRL-EVENT-TERMINATING - signal x 178 * </pre> 179 * <code>x</code> is the signal that caused termination. 180 */ 181 private static final String TERMINATING_STR = "TERMINATING"; 182 /** 183 * <pre> 184 * CTRL-EVENT-DRIVER-STATE state 185 * </pre> 186 * <code>state</code> can be HANGED 187 */ 188 private static final String DRIVER_STATE_STR = "DRIVER-STATE"; 189 /** 190 * <pre> 191 * CTRL-EVENT-EAP-FAILURE EAP authentication failed 192 * </pre> 193 */ 194 private static final String EAP_FAILURE_STR = "EAP-FAILURE"; 195 196 /** 197 * This indicates an authentication failure on EAP FAILURE event 198 */ 199 private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed"; 200 201 /* EAP authentication timeout events */ 202 private static final String AUTH_EVENT_PREFIX_STR = "Authentication with"; 203 private static final String AUTH_TIMEOUT_STR = "timed out."; 204 205 /** 206 * This indicates an assoc reject event 207 */ 208 private static final String ASSOC_REJECT_STR = "ASSOC-REJECT"; 209 210 /** 211 * This indicates auth or association failure bad enough so as network got disabled 212 * - WPA_PSK auth failure suspecting shared key mismatch 213 * - failed multiple Associations 214 */ 215 private static final String TEMP_DISABLED_STR = "SSID-TEMP-DISABLED"; 216 217 /** 218 * This indicates a previously disabled SSID was reenabled by supplicant 219 */ 220 private static final String REENABLED_STR = "SSID-REENABLED"; 221 222 /** 223 * This indicates supplicant found a given BSS 224 */ 225 private static final String BSS_ADDED_STR = "BSS-ADDED"; 226 227 /** 228 * This indicates supplicant removed a given BSS 229 */ 230 private static final String BSS_REMOVED_STR = "BSS-REMOVED"; 231 232 /** 233 * Regex pattern for extracting an Ethernet-style MAC address from a string. 234 * Matches a strings like the following:<pre> 235 * CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre> 236 */ 237 private static Pattern mConnectedEventPattern = 238 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) "); 239 240 /** 241 * Regex pattern for extracting an Ethernet-style MAC address from a string. 242 * Matches a strings like the following:<pre> 243 * CTRL-EVENT-DISCONNECTED - bssid=ac:22:0b:24:70:74 reason=3 locally_generated=1 244 */ 245 private static Pattern mDisconnectedEventPattern = 246 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 247 "reason=([0-9]+) +locally_generated=([0-1])"); 248 249 /** 250 * Regex pattern for extracting an Ethernet-style MAC address from a string. 251 * Matches a strings like the following:<pre> 252 * CTRL-EVENT-ASSOC-REJECT - bssid=ac:22:0b:24:70:74 status_code=1 253 */ 254 private static Pattern mAssocRejectEventPattern = 255 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 256 "status_code=([0-9]+)"); 257 258 /** 259 * Regex pattern for extracting an Ethernet-style MAC address from a string. 260 * Matches a strings like the following:<pre> 261 * IFNAME=wlan0 Trying to associate with 6c:f3:7f:ae:87:71 262 */ 263 private static final String TARGET_BSSID_STR = "Trying to associate with "; 264 265 private static Pattern mTargetBSSIDPattern = 266 Pattern.compile("Trying to associate with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 267 268 /** 269 * Regex pattern for extracting an Ethernet-style MAC address from a string. 270 * Matches a strings like the following:<pre> 271 * IFNAME=wlan0 Associated with 6c:f3:7f:ae:87:71 272 */ 273 private static final String ASSOCIATED_WITH_STR = "Associated with "; 274 275 private static Pattern mAssociatedPattern = 276 Pattern.compile("Associated with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 277 278 /** 279 * Regex pattern for extracting an external GSM sim authentication request from a string. 280 * Matches a strings like the following:<pre> 281 * CTRL-REQ-SIM-<network id>:GSM-AUTH:<RAND1>:<RAND2>[:<RAND3>] needed for SSID <SSID> 282 * This pattern should find 283 * 0 - id 284 * 1 - Rand1 285 * 2 - Rand2 286 * 3 - Rand3 287 * 4 - SSID 288 */ 289 private static Pattern mRequestGsmAuthPattern = 290 Pattern.compile("SIM-([0-9]*):GSM-AUTH((:[0-9a-f]+)+) needed for SSID (.+)"); 291 292 /** 293 * Regex pattern for extracting an external 3G sim authentication request from a string. 294 * Matches a strings like the following:<pre> 295 * CTRL-REQ-SIM-<network id>:UMTS-AUTH:<RAND>:<AUTN> needed for SSID <SSID> 296 * This pattern should find 297 * 1 - id 298 * 2 - Rand 299 * 3 - Autn 300 * 4 - SSID 301 */ 302 private static Pattern mRequestUmtsAuthPattern = 303 Pattern.compile("SIM-([0-9]*):UMTS-AUTH:([0-9a-f]+):([0-9a-f]+) needed for SSID (.+)"); 304 305 /** 306 * Regex pattern for extracting SSIDs from request identity string. 307 * Matches a strings like the following:<pre> 308 * CTRL-REQ-IDENTITY-xx:Identity needed for SSID XXXX</pre> 309 */ 310 private static Pattern mRequestIdentityPattern = 311 Pattern.compile("IDENTITY-([0-9]+):Identity needed for SSID (.+)"); 312 313 /** P2P events */ 314 private static final String P2P_EVENT_PREFIX_STR = "P2P"; 315 316 /* P2P-DEVICE-FOUND fa:7b:7a:42:02:13 p2p_dev_addr=fa:7b:7a:42:02:13 pri_dev_type=1-0050F204-1 317 name='p2p-TEST1' config_methods=0x188 dev_capab=0x27 group_capab=0x0 */ 318 private static final String P2P_DEVICE_FOUND_STR = "P2P-DEVICE-FOUND"; 319 320 /* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */ 321 private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST"; 322 323 /* P2P-FIND-STOPPED */ 324 private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED"; 325 326 /* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */ 327 private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST"; 328 329 private static final String P2P_GO_NEG_SUCCESS_STR = "P2P-GO-NEG-SUCCESS"; 330 331 /* P2P-GO-NEG-FAILURE status=x */ 332 private static final String P2P_GO_NEG_FAILURE_STR = "P2P-GO-NEG-FAILURE"; 333 334 private static final String P2P_GROUP_FORMATION_SUCCESS_STR = 335 "P2P-GROUP-FORMATION-SUCCESS"; 336 337 private static final String P2P_GROUP_FORMATION_FAILURE_STR = 338 "P2P-GROUP-FORMATION-FAILURE"; 339 340 /* P2P-GROUP-STARTED p2p-wlan0-0 [client|GO] ssid="DIRECT-W8" freq=2437 341 [psk=2182b2e50e53f260d04f3c7b25ef33c965a3291b9b36b455a82d77fd82ca15bc|passphrase="fKG4jMe3"] 342 go_dev_addr=fa:7b:7a:42:02:13 [PERSISTENT] */ 343 private static final String P2P_GROUP_STARTED_STR = "P2P-GROUP-STARTED"; 344 345 /* P2P-GROUP-REMOVED p2p-wlan0-0 [client|GO] reason=REQUESTED */ 346 private static final String P2P_GROUP_REMOVED_STR = "P2P-GROUP-REMOVED"; 347 348 /* P2P-INVITATION-RECEIVED sa=fa:7b:7a:42:02:13 go_dev_addr=f8:7b:7a:42:02:13 349 bssid=fa:7b:7a:42:82:13 unknown-network */ 350 private static final String P2P_INVITATION_RECEIVED_STR = "P2P-INVITATION-RECEIVED"; 351 352 /* P2P-INVITATION-RESULT status=1 */ 353 private static final String P2P_INVITATION_RESULT_STR = "P2P-INVITATION-RESULT"; 354 355 /* P2P-PROV-DISC-PBC-REQ 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 356 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 357 group_capab=0x0 */ 358 private static final String P2P_PROV_DISC_PBC_REQ_STR = "P2P-PROV-DISC-PBC-REQ"; 359 360 /* P2P-PROV-DISC-PBC-RESP 02:12:47:f2:5a:36 */ 361 private static final String P2P_PROV_DISC_PBC_RSP_STR = "P2P-PROV-DISC-PBC-RESP"; 362 363 /* P2P-PROV-DISC-ENTER-PIN 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 364 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 365 group_capab=0x0 */ 366 private static final String P2P_PROV_DISC_ENTER_PIN_STR = "P2P-PROV-DISC-ENTER-PIN"; 367 /* P2P-PROV-DISC-SHOW-PIN 42:fc:89:e1:e2:27 44490607 p2p_dev_addr=42:fc:89:e1:e2:27 368 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 369 group_capab=0x0 */ 370 private static final String P2P_PROV_DISC_SHOW_PIN_STR = "P2P-PROV-DISC-SHOW-PIN"; 371 /* P2P-PROV-DISC-FAILURE p2p_dev_addr=42:fc:89:e1:e2:27 */ 372 private static final String P2P_PROV_DISC_FAILURE_STR = "P2P-PROV-DISC-FAILURE"; 373 374 /* 375 * Protocol format is as follows.<br> 376 * See the Table.62 in the WiFi Direct specification for the detail. 377 * ______________________________________________________________ 378 * | Length(2byte) | Type(1byte) | TransId(1byte)}| 379 * ______________________________________________________________ 380 * | status(1byte) | vendor specific(variable) | 381 * 382 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300000101 383 * length=3, service type=0(ALL Service), transaction id=1, 384 * status=1(service protocol type not available)<br> 385 * 386 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300020201 387 * length=3, service type=2(UPnP), transaction id=2, 388 * status=1(service protocol type not available) 389 * 390 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 990002030010757569643a3131323 391 * 2646534652d383537342d353961622d393332322d3333333435363738393034343a3 392 * a75726e3a736368656d61732d75706e702d6f72673a736572766963653a436f6e746 393 * 56e744469726563746f72793a322c757569643a36383539646564652d383537342d3 394 * 53961622d393333322d3132333435363738393031323a3a75706e703a726f6f74646 395 * 576696365 396 * length=153,type=2(UPnP),transaction id=3,status=0 397 * 398 * UPnP Protocol format is as follows. 399 * ______________________________________________________ 400 * | Version (1) | USN (Variable) | 401 * 402 * version=0x10(UPnP1.0) data=usn:uuid:1122de4e-8574-59ab-9322-33345678 403 * 9044::urn:schemas-upnp-org:service:ContentDirectory:2,usn:uuid:6859d 404 * ede-8574-59ab-9332-123456789012::upnp:rootdevice 405 * 406 * P2P-SERV-DISC-RESP 58:17:0c:bc:dd:ca 21 1900010200045f6970 407 * 70c00c000c01094d795072696e746572c027 408 * length=25, type=1(Bonjour),transaction id=2,status=0 409 * 410 * Bonjour Protocol format is as follows. 411 * __________________________________________________________ 412 * |DNS Name(Variable)|DNS Type(1)|Version(1)|RDATA(Variable)| 413 * 414 * DNS Name=_ipp._tcp.local.,DNS type=12(PTR), Version=1, 415 * RDATA=MyPrinter._ipp._tcp.local. 416 * 417 */ 418 private static final String P2P_SERV_DISC_RESP_STR = "P2P-SERV-DISC-RESP"; 419 420 private static final String HOST_AP_EVENT_PREFIX_STR = "AP"; 421 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 dev_addr=02:90:4c:a0:92:54 */ 422 private static final String AP_STA_CONNECTED_STR = "AP-STA-CONNECTED"; 423 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 */ 424 private static final String AP_STA_DISCONNECTED_STR = "AP-STA-DISCONNECTED"; 425 private static final String ANQP_DONE_STR = "ANQP-QUERY-DONE"; 426 427 /* Supplicant events reported to a state machine */ 428 private static final int BASE = Protocol.BASE_WIFI_MONITOR; 429 430 /* Connection to supplicant established */ 431 public static final int SUP_CONNECTION_EVENT = BASE + 1; 432 /* Connection to supplicant lost */ 433 public static final int SUP_DISCONNECTION_EVENT = BASE + 2; 434 /* Network connection completed */ 435 public static final int NETWORK_CONNECTION_EVENT = BASE + 3; 436 /* Network disconnection completed */ 437 public static final int NETWORK_DISCONNECTION_EVENT = BASE + 4; 438 /* Scan results are available */ 439 public static final int SCAN_RESULTS_EVENT = BASE + 5; 440 /* Supplicate state changed */ 441 public static final int SUPPLICANT_STATE_CHANGE_EVENT = BASE + 6; 442 /* Password failure and EAP authentication failure */ 443 public static final int AUTHENTICATION_FAILURE_EVENT = BASE + 7; 444 /* WPS success detected */ 445 public static final int WPS_SUCCESS_EVENT = BASE + 8; 446 /* WPS failure detected */ 447 public static final int WPS_FAIL_EVENT = BASE + 9; 448 /* WPS overlap detected */ 449 public static final int WPS_OVERLAP_EVENT = BASE + 10; 450 /* WPS timeout detected */ 451 public static final int WPS_TIMEOUT_EVENT = BASE + 11; 452 /* Driver was hung */ 453 public static final int DRIVER_HUNG_EVENT = BASE + 12; 454 /* SSID was disabled due to auth failure or excessive 455 * connection failures */ 456 public static final int SSID_TEMP_DISABLED = BASE + 13; 457 /* SSID reenabled by supplicant */ 458 public static final int SSID_REENABLED = BASE + 14; 459 460 /* Request Identity */ 461 public static final int SUP_REQUEST_IDENTITY = BASE + 15; 462 463 /* Request SIM Auth */ 464 public static final int SUP_REQUEST_SIM_AUTH = BASE + 16; 465 466 public static final int SCAN_FAILED_EVENT = BASE + 17; 467 468 /* P2P events */ 469 public static final int P2P_DEVICE_FOUND_EVENT = BASE + 21; 470 public static final int P2P_DEVICE_LOST_EVENT = BASE + 22; 471 public static final int P2P_GO_NEGOTIATION_REQUEST_EVENT = BASE + 23; 472 public static final int P2P_GO_NEGOTIATION_SUCCESS_EVENT = BASE + 25; 473 public static final int P2P_GO_NEGOTIATION_FAILURE_EVENT = BASE + 26; 474 public static final int P2P_GROUP_FORMATION_SUCCESS_EVENT = BASE + 27; 475 public static final int P2P_GROUP_FORMATION_FAILURE_EVENT = BASE + 28; 476 public static final int P2P_GROUP_STARTED_EVENT = BASE + 29; 477 public static final int P2P_GROUP_REMOVED_EVENT = BASE + 30; 478 public static final int P2P_INVITATION_RECEIVED_EVENT = BASE + 31; 479 public static final int P2P_INVITATION_RESULT_EVENT = BASE + 32; 480 public static final int P2P_PROV_DISC_PBC_REQ_EVENT = BASE + 33; 481 public static final int P2P_PROV_DISC_PBC_RSP_EVENT = BASE + 34; 482 public static final int P2P_PROV_DISC_ENTER_PIN_EVENT = BASE + 35; 483 public static final int P2P_PROV_DISC_SHOW_PIN_EVENT = BASE + 36; 484 public static final int P2P_FIND_STOPPED_EVENT = BASE + 37; 485 public static final int P2P_SERV_DISC_RESP_EVENT = BASE + 38; 486 public static final int P2P_PROV_DISC_FAILURE_EVENT = BASE + 39; 487 488 /* hostap events */ 489 public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41; 490 public static final int AP_STA_CONNECTED_EVENT = BASE + 42; 491 492 /* Indicates assoc reject event */ 493 public static final int ASSOCIATION_REJECTION_EVENT = BASE + 43; 494 public static final int ANQP_DONE_EVENT = BASE + 44; 495 496 /* hotspot 2.0 ANQP events */ 497 public static final int GAS_QUERY_START_EVENT = BASE + 51; 498 public static final int GAS_QUERY_DONE_EVENT = BASE + 52; 499 public static final int RX_HS20_ANQP_ICON_EVENT = BASE + 53; 500 501 /* hotspot 2.0 events */ 502 public static final int HS20_REMEDIATION_EVENT = BASE + 61; 503 public static final int HS20_DEAUTH_EVENT = BASE + 62; 504 505 /** 506 * This indicates a read error on the monitor socket conenction 507 */ 508 private static final String WPA_RECV_ERROR_STR = "recv error"; 509 510 /** 511 * Max errors before we close supplicant connection 512 */ 513 private static final int MAX_RECV_ERRORS = 10; 514 515 private final String mInterfaceName; 516 private final WifiNative mWifiNative; 517 private final StateMachine mStateMachine; 518 private StateMachine mStateMachine2; 519 private boolean mMonitoring; 520 521 // This is a global counter, since it's not monitor specific. However, the existing 522 // implementation forwards all "global" control events like CTRL-EVENT-TERMINATING 523 // to the p2p0 monitor. Is that expected ? It seems a bit surprising. 524 // 525 // TODO: If the p2p0 monitor isn't registered, the behaviour is even more surprising. 526 // The event will be dispatched to all monitors, and each of them will end up incrementing 527 // it in their dispatchXXX method. If we have 5 registered monitors (say), 2 consecutive 528 // recv errors will cause us to disconnect from the supplicant (instead of the intended 10). 529 // 530 // This variable is always accessed and modified under a WifiMonitorSingleton lock. 531 private static int sRecvErrors; 532 533 public WifiMonitor(StateMachine stateMachine, WifiNative wifiNative) { 534 if (DBG) Log.d(TAG, "Creating WifiMonitor"); 535 mWifiNative = wifiNative; 536 mInterfaceName = wifiNative.mInterfaceName; 537 mStateMachine = stateMachine; 538 mStateMachine2 = null; 539 mMonitoring = false; 540 541 WifiMonitorSingleton.sInstance.registerInterfaceMonitor(mInterfaceName, this); 542 } 543 544 void enableVerboseLogging(int verbose) { 545 if (verbose > 0) { 546 DBG = true; 547 } else { 548 DBG = false; 549 } 550 } 551 552 // TODO: temporary hack, should be handle by supplicant manager (new component in future) 553 public void setStateMachine2(StateMachine stateMachine) { 554 mStateMachine2 = stateMachine; 555 } 556 557 public void startMonitoring() { 558 WifiMonitorSingleton.sInstance.startMonitoring(mInterfaceName); 559 } 560 561 public void stopMonitoring() { 562 WifiMonitorSingleton.sInstance.stopMonitoring(mInterfaceName); 563 } 564 565 public void stopSupplicant() { 566 WifiMonitorSingleton.sInstance.stopSupplicant(); 567 } 568 569 public void killSupplicant(boolean p2pSupported) { 570 WifiMonitorSingleton.sInstance.killSupplicant(p2pSupported); 571 } 572 573 private static class WifiMonitorSingleton { 574 private static final WifiMonitorSingleton sInstance = new WifiMonitorSingleton(); 575 576 private final HashMap<String, WifiMonitor> mIfaceMap = new HashMap<String, WifiMonitor>(); 577 private boolean mConnected = false; 578 private WifiNative mWifiNative; 579 580 private WifiMonitorSingleton() { 581 } 582 583 public synchronized void startMonitoring(String iface) { 584 WifiMonitor m = mIfaceMap.get(iface); 585 if (m == null) { 586 Log.e(TAG, "startMonitor called with unknown iface=" + iface); 587 return; 588 } 589 590 Log.d(TAG, "startMonitoring(" + iface + ") with mConnected = " + mConnected); 591 592 if (mConnected) { 593 m.mMonitoring = true; 594 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 595 } else { 596 if (DBG) Log.d(TAG, "connecting to supplicant"); 597 int connectTries = 0; 598 while (true) { 599 if (mWifiNative.connectToSupplicant()) { 600 m.mMonitoring = true; 601 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 602 mConnected = true; 603 new MonitorThread(mWifiNative, this).start(); 604 break; 605 } 606 if (connectTries++ < 5) { 607 try { 608 Thread.sleep(1000); 609 } catch (InterruptedException ignore) { 610 } 611 } else { 612 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 613 Log.e(TAG, "startMonitoring(" + iface + ") failed!"); 614 break; 615 } 616 } 617 } 618 } 619 620 public synchronized void stopMonitoring(String iface) { 621 WifiMonitor m = mIfaceMap.get(iface); 622 if (DBG) Log.d(TAG, "stopMonitoring(" + iface + ") = " + m.mStateMachine); 623 m.mMonitoring = false; 624 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 625 } 626 627 public synchronized void registerInterfaceMonitor(String iface, WifiMonitor m) { 628 if (DBG) Log.d(TAG, "registerInterface(" + iface + "+" + m.mStateMachine + ")"); 629 mIfaceMap.put(iface, m); 630 if (mWifiNative == null) { 631 mWifiNative = m.mWifiNative; 632 } 633 } 634 635 public synchronized void unregisterInterfaceMonitor(String iface) { 636 // REVIEW: When should we call this? If this isn't called, then WifiMonitor 637 // objects will remain in the mIfaceMap; and won't ever get deleted 638 639 WifiMonitor m = mIfaceMap.remove(iface); 640 if (DBG) Log.d(TAG, "unregisterInterface(" + iface + "+" + m.mStateMachine + ")"); 641 } 642 643 public synchronized void stopSupplicant() { 644 mWifiNative.stopSupplicant(); 645 } 646 647 public synchronized void killSupplicant(boolean p2pSupported) { 648 String suppState = System.getProperty("init.svc.wpa_supplicant"); 649 if (suppState == null) suppState = "unknown"; 650 String p2pSuppState = System.getProperty("init.svc.p2p_supplicant"); 651 if (p2pSuppState == null) p2pSuppState = "unknown"; 652 653 Log.e(TAG, "killSupplicant p2p" + p2pSupported 654 + " init.svc.wpa_supplicant=" + suppState 655 + " init.svc.p2p_supplicant=" + p2pSuppState); 656 WifiNative.killSupplicant(p2pSupported); 657 mConnected = false; 658 for (WifiMonitor m : mIfaceMap.values()) { 659 m.mMonitoring = false; 660 } 661 } 662 663 private synchronized boolean dispatchEvent(String eventStr) { 664 String iface; 665 // IFNAME=wlan0 ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 666 if (eventStr.startsWith("IFNAME=")) { 667 int space = eventStr.indexOf(' '); 668 if (space != -1) { 669 iface = eventStr.substring(7, space); 670 if (!mIfaceMap.containsKey(iface) && iface.startsWith("p2p-")) { 671 // p2p interfaces are created dynamically, but we have 672 // only one P2p state machine monitoring all of them; look 673 // for it explicitly, and send messages there .. 674 iface = "p2p0"; 675 } 676 eventStr = eventStr.substring(space + 1); 677 } else { 678 // No point dispatching this event to any interface, the dispatched 679 // event string will begin with "IFNAME=" which dispatchEvent can't really 680 // do anything about. 681 Log.e(TAG, "Dropping malformed event (unparsable iface): " + eventStr); 682 return false; 683 } 684 } else { 685 // events without prefix belong to p2p0 monitor 686 iface = "p2p0"; 687 } 688 689 if (VDBG) Log.d(TAG, "Dispatching event to interface: " + iface); 690 691 WifiMonitor m = mIfaceMap.get(iface); 692 if (m != null) { 693 if (m.mMonitoring) { 694 if (m.dispatchEvent(eventStr, iface)) { 695 mConnected = false; 696 return true; 697 } 698 699 return false; 700 } else { 701 if (DBG) Log.d(TAG, "Dropping event because (" + iface + ") is stopped"); 702 return false; 703 } 704 } else { 705 if (DBG) Log.d(TAG, "Sending to all monitors because there's no matching iface"); 706 boolean done = false; 707 boolean isMonitoring = false; 708 boolean isTerminating = false; 709 if (eventStr.startsWith(EVENT_PREFIX_STR) 710 && eventStr.contains(TERMINATING_STR)) { 711 isTerminating = true; 712 } 713 for (WifiMonitor monitor : mIfaceMap.values()) { 714 if (monitor.mMonitoring) { 715 isMonitoring = true; 716 if (monitor.dispatchEvent(eventStr, iface)) { 717 done = true; 718 } 719 } 720 } 721 722 if (!isMonitoring && isTerminating) { 723 done = true; 724 } 725 726 if (done) { 727 mConnected = false; 728 } 729 730 return done; 731 } 732 } 733 } 734 735 private static class MonitorThread extends Thread { 736 private final WifiNative mWifiNative; 737 private final WifiMonitorSingleton mWifiMonitorSingleton; 738 private final LocalLog mLocalLog = WifiNative.getLocalLog(); 739 740 public MonitorThread(WifiNative wifiNative, WifiMonitorSingleton wifiMonitorSingleton) { 741 super("WifiMonitor"); 742 mWifiNative = wifiNative; 743 mWifiMonitorSingleton = wifiMonitorSingleton; 744 } 745 746 public void run() { 747 if (DBG) { 748 Log.d(TAG, "MonitorThread start with mConnected=" + 749 mWifiMonitorSingleton.mConnected); 750 } 751 //noinspection InfiniteLoopStatement 752 for (;;) { 753 if (!mWifiMonitorSingleton.mConnected) { 754 if (DBG) Log.d(TAG, "MonitorThread exit because mConnected is false"); 755 break; 756 } 757 String eventStr = mWifiNative.waitForEvent(); 758 759 // Skip logging the common but mostly uninteresting events 760 if (eventStr.indexOf(BSS_ADDED_STR) == -1 761 && eventStr.indexOf(BSS_REMOVED_STR) == -1) { 762 if (DBG) Log.d(TAG, "Event [" + eventStr + "]"); 763 mLocalLog.log("Event [" + eventStr + "]"); 764 } 765 766 if (mWifiMonitorSingleton.dispatchEvent(eventStr)) { 767 if (DBG) Log.d(TAG, "Disconnecting from the supplicant, no more events"); 768 break; 769 } 770 } 771 } 772 } 773 774 private void logDbg(String debug) { 775 Log.e(TAG, debug/*+ " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 776 +" - "+ Thread.currentThread().getStackTrace()[3].getMethodName() 777 +" - "+ Thread.currentThread().getStackTrace()[4].getMethodName() 778 +" - "+ Thread.currentThread().getStackTrace()[5].getMethodName()*/); 779 } 780 781 /* @return true if the event was supplicant disconnection */ 782 private boolean dispatchEvent(String eventStr, String iface) { 783 784 if (DBG) { 785 // Dont log CTRL-EVENT-BSS-ADDED which are too verbose and not handled 786 if (eventStr != null && !eventStr.contains("CTRL-EVENT-BSS-ADDED")) { 787 logDbg("WifiMonitor:" + iface + " cnt=" + Integer.toString(eventLogCounter) 788 + " dispatchEvent: " + eventStr); 789 } 790 } 791 792 if (!eventStr.startsWith(EVENT_PREFIX_STR)) { 793 if (eventStr.startsWith(WPA_EVENT_PREFIX_STR) && 794 0 < eventStr.indexOf(PASSWORD_MAY_BE_INCORRECT_STR)) { 795 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter); 796 } else if (eventStr.startsWith(WPS_SUCCESS_STR)) { 797 mStateMachine.sendMessage(WPS_SUCCESS_EVENT); 798 } else if (eventStr.startsWith(WPS_FAIL_STR)) { 799 handleWpsFailEvent(eventStr); 800 } else if (eventStr.startsWith(WPS_OVERLAP_STR)) { 801 mStateMachine.sendMessage(WPS_OVERLAP_EVENT); 802 } else if (eventStr.startsWith(WPS_TIMEOUT_STR)) { 803 mStateMachine.sendMessage(WPS_TIMEOUT_EVENT); 804 } else if (eventStr.startsWith(P2P_EVENT_PREFIX_STR)) { 805 handleP2pEvents(eventStr); 806 } else if (eventStr.startsWith(HOST_AP_EVENT_PREFIX_STR)) { 807 handleHostApEvents(eventStr); 808 } else if (eventStr.startsWith(ANQP_DONE_STR)) { 809 try { 810 handleAnqpResult(eventStr); 811 } 812 catch (IllegalArgumentException iae) { 813 Log.e(TAG, "Bad ANQP event string: '" + eventStr + "': " + iae); 814 } 815 } else if (eventStr.startsWith(GAS_QUERY_PREFIX_STR)) { // !!! clean >>End 816 handleGasQueryEvents(eventStr); 817 } else if (eventStr.startsWith(RX_HS20_ANQP_ICON_STR)) { 818 if (mStateMachine2 != null) 819 mStateMachine2.sendMessage(RX_HS20_ANQP_ICON_EVENT, 820 eventStr.substring(RX_HS20_ANQP_ICON_STR_LEN + 1)); 821 } else if (eventStr.startsWith(HS20_PREFIX_STR)) { // !!! <<End 822 handleHs20Events(eventStr); 823 } else if (eventStr.startsWith(REQUEST_PREFIX_STR)) { 824 handleRequests(eventStr); 825 } else if (eventStr.startsWith(TARGET_BSSID_STR)) { 826 handleTargetBSSIDEvent(eventStr); 827 } else if (eventStr.startsWith(ASSOCIATED_WITH_STR)) { 828 handleAssociatedBSSIDEvent(eventStr); 829 } else if (eventStr.startsWith(AUTH_EVENT_PREFIX_STR) && 830 eventStr.endsWith(AUTH_TIMEOUT_STR)) { 831 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT); 832 } else { 833 if (DBG) Log.w(TAG, "couldn't identify event type - " + eventStr); 834 } 835 eventLogCounter++; 836 return false; 837 } 838 839 String eventName = eventStr.substring(EVENT_PREFIX_LEN_STR); 840 int nameEnd = eventName.indexOf(' '); 841 if (nameEnd != -1) 842 eventName = eventName.substring(0, nameEnd); 843 if (eventName.length() == 0) { 844 if (DBG) Log.i(TAG, "Received wpa_supplicant event with empty event name"); 845 eventLogCounter++; 846 return false; 847 } 848 /* 849 * Map event name into event enum 850 */ 851 int event; 852 if (eventName.equals(CONNECTED_STR)) 853 event = CONNECTED; 854 else if (eventName.equals(DISCONNECTED_STR)) 855 event = DISCONNECTED; 856 else if (eventName.equals(STATE_CHANGE_STR)) 857 event = STATE_CHANGE; 858 else if (eventName.equals(SCAN_RESULTS_STR)) 859 event = SCAN_RESULTS; 860 else if (eventName.equals(SCAN_FAILED_STR)) 861 event = SCAN_FAILED; 862 else if (eventName.equals(LINK_SPEED_STR)) 863 event = LINK_SPEED; 864 else if (eventName.equals(TERMINATING_STR)) 865 event = TERMINATING; 866 else if (eventName.equals(DRIVER_STATE_STR)) 867 event = DRIVER_STATE; 868 else if (eventName.equals(EAP_FAILURE_STR)) 869 event = EAP_FAILURE; 870 else if (eventName.equals(ASSOC_REJECT_STR)) 871 event = ASSOC_REJECT; 872 else if (eventName.equals(TEMP_DISABLED_STR)) { 873 event = SSID_TEMP_DISABLE; 874 } else if (eventName.equals(REENABLED_STR)) { 875 event = SSID_REENABLE; 876 } else if (eventName.equals(BSS_ADDED_STR)) { 877 event = BSS_ADDED; 878 } else if (eventName.equals(BSS_REMOVED_STR)) { 879 event = BSS_REMOVED; 880 } else 881 event = UNKNOWN; 882 883 String eventData = eventStr; 884 if (event == DRIVER_STATE || event == LINK_SPEED) 885 eventData = eventData.split(" ")[1]; 886 else if (event == STATE_CHANGE || event == EAP_FAILURE) { 887 int ind = eventStr.indexOf(" "); 888 if (ind != -1) { 889 eventData = eventStr.substring(ind + 1); 890 } 891 } else { 892 int ind = eventStr.indexOf(" - "); 893 if (ind != -1) { 894 eventData = eventStr.substring(ind + 3); 895 } 896 } 897 898 if ((event == SSID_TEMP_DISABLE)||(event == SSID_REENABLE)) { 899 String substr = null; 900 int netId = -1; 901 int ind = eventStr.indexOf(" "); 902 if (ind != -1) { 903 substr = eventStr.substring(ind + 1); 904 } 905 if (substr != null) { 906 String status[] = substr.split(" "); 907 for (String key : status) { 908 if (key.regionMatches(0, "id=", 0, 3)) { 909 int idx = 3; 910 netId = 0; 911 while (idx < key.length()) { 912 char c = key.charAt(idx); 913 if ((c >= 0x30) && (c <= 0x39)) { 914 netId *= 10; 915 netId += c - 0x30; 916 idx++; 917 } else { 918 break; 919 } 920 } 921 } 922 } 923 } 924 mStateMachine.sendMessage((event == SSID_TEMP_DISABLE)? 925 SSID_TEMP_DISABLED:SSID_REENABLED, netId, 0, substr); 926 } else if (event == STATE_CHANGE) { 927 handleSupplicantStateChange(eventData); 928 } else if (event == DRIVER_STATE) { 929 handleDriverEvent(eventData); 930 } else if (event == TERMINATING) { 931 /** 932 * Close the supplicant connection if we see 933 * too many recv errors 934 */ 935 if (eventData.startsWith(WPA_RECV_ERROR_STR)) { 936 if (++sRecvErrors > MAX_RECV_ERRORS) { 937 if (DBG) { 938 Log.d(TAG, "too many recv errors, closing connection"); 939 } 940 } else { 941 eventLogCounter++; 942 return false; 943 } 944 } 945 946 // Notify and exit 947 mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT, eventLogCounter); 948 return true; 949 } else if (event == EAP_FAILURE) { 950 if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) { 951 logDbg("WifiMonitor send auth failure (EAP_AUTH_FAILURE) "); 952 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT, eventLogCounter); 953 } 954 } else if (event == ASSOC_REJECT) { 955 Matcher match = mAssocRejectEventPattern.matcher(eventData); 956 String BSSID = ""; 957 int status = -1; 958 if (!match.find()) { 959 if (DBG) Log.d(TAG, "Assoc Reject: Could not parse assoc reject string"); 960 } else { 961 BSSID = match.group(1); 962 try { 963 status = Integer.parseInt(match.group(2)); 964 } catch (NumberFormatException e) { 965 status = -1; 966 } 967 } 968 mStateMachine.sendMessage(ASSOCIATION_REJECTION_EVENT, eventLogCounter, status, BSSID); 969 } else if (event == BSS_ADDED && !VDBG) { 970 // Ignore that event - it is not handled, and dont log it as it is too verbose 971 } else if (event == BSS_REMOVED && !VDBG) { 972 // Ignore that event - it is not handled, and dont log it as it is too verbose 973 } else { 974 handleEvent(event, eventData); 975 } 976 sRecvErrors = 0; 977 eventLogCounter++; 978 return false; 979 } 980 981 private void handleDriverEvent(String state) { 982 if (state == null) { 983 return; 984 } 985 if (state.equals("HANGED")) { 986 mStateMachine.sendMessage(DRIVER_HUNG_EVENT); 987 } 988 } 989 990 /** 991 * Handle all supplicant events except STATE-CHANGE 992 * @param event the event type 993 * @param remainder the rest of the string following the 994 * event name and " — " 995 */ 996 void handleEvent(int event, String remainder) { 997 if (DBG) { 998 logDbg("handleEvent " + Integer.toString(event) + " " + remainder); 999 } 1000 switch (event) { 1001 case DISCONNECTED: 1002 handleNetworkStateChange(NetworkInfo.DetailedState.DISCONNECTED, remainder); 1003 break; 1004 1005 case CONNECTED: 1006 handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED, remainder); 1007 break; 1008 1009 case SCAN_RESULTS: 1010 mStateMachine.sendMessage(SCAN_RESULTS_EVENT); 1011 break; 1012 1013 case SCAN_FAILED: 1014 mStateMachine.sendMessage(SCAN_FAILED_EVENT); 1015 break; 1016 1017 case UNKNOWN: 1018 if (DBG) { 1019 logDbg("handleEvent unknown: " + Integer.toString(event) + " " + remainder); 1020 } 1021 break; 1022 default: 1023 break; 1024 } 1025 } 1026 1027 private void handleTargetBSSIDEvent(String eventStr) { 1028 String BSSID = null; 1029 Matcher match = mTargetBSSIDPattern.matcher(eventStr); 1030 if (match.find()) { 1031 BSSID = match.group(1); 1032 } 1033 mStateMachine.sendMessage(WifiStateMachine.CMD_TARGET_BSSID, eventLogCounter, 0, BSSID); 1034 } 1035 1036 private void handleAssociatedBSSIDEvent(String eventStr) { 1037 String BSSID = null; 1038 Matcher match = mAssociatedPattern.matcher(eventStr); 1039 if (match.find()) { 1040 BSSID = match.group(1); 1041 } 1042 mStateMachine.sendMessage(WifiStateMachine.CMD_ASSOCIATED_BSSID, eventLogCounter, 0, BSSID); 1043 } 1044 1045 1046 private void handleWpsFailEvent(String dataString) { 1047 final Pattern p = Pattern.compile(WPS_FAIL_PATTERN); 1048 Matcher match = p.matcher(dataString); 1049 int reason = 0; 1050 if (match.find()) { 1051 String cfgErrStr = match.group(1); 1052 String reasonStr = match.group(2); 1053 1054 if (reasonStr != null) { 1055 int reasonInt = Integer.parseInt(reasonStr); 1056 switch(reasonInt) { 1057 case REASON_TKIP_ONLY_PROHIBITED: 1058 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1059 WifiManager.WPS_TKIP_ONLY_PROHIBITED, 0)); 1060 return; 1061 case REASON_WEP_PROHIBITED: 1062 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1063 WifiManager.WPS_WEP_PROHIBITED, 0)); 1064 return; 1065 default: 1066 reason = reasonInt; 1067 break; 1068 } 1069 } 1070 if (cfgErrStr != null) { 1071 int cfgErrInt = Integer.parseInt(cfgErrStr); 1072 switch(cfgErrInt) { 1073 case CONFIG_AUTH_FAILURE: 1074 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1075 WifiManager.WPS_AUTH_FAILURE, 0)); 1076 return; 1077 case CONFIG_MULTIPLE_PBC_DETECTED: 1078 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1079 WifiManager.WPS_OVERLAP_ERROR, 0)); 1080 return; 1081 default: 1082 if (reason == 0) reason = cfgErrInt; 1083 break; 1084 } 1085 } 1086 } 1087 //For all other errors, return a generic internal error 1088 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 1089 WifiManager.ERROR, reason)); 1090 } 1091 1092 /* <event> status=<err> and the special case of <event> reason=FREQ_CONFLICT */ 1093 private P2pStatus p2pError(String dataString) { 1094 P2pStatus err = P2pStatus.UNKNOWN; 1095 String[] tokens = dataString.split(" "); 1096 if (tokens.length < 2) return err; 1097 String[] nameValue = tokens[1].split("="); 1098 if (nameValue.length != 2) return err; 1099 1100 /* Handle the special case of reason=FREQ+CONFLICT */ 1101 if (nameValue[1].equals("FREQ_CONFLICT")) { 1102 return P2pStatus.NO_COMMON_CHANNEL; 1103 } 1104 try { 1105 err = P2pStatus.valueOf(Integer.parseInt(nameValue[1])); 1106 } catch (NumberFormatException e) { 1107 e.printStackTrace(); 1108 } 1109 return err; 1110 } 1111 1112 WifiP2pDevice getWifiP2pDevice(String dataString) { 1113 try { 1114 WifiP2pDevice device = new WifiP2pDevice(dataString); 1115 return device; 1116 } catch (IllegalArgumentException e) { 1117 return null; 1118 } 1119 } 1120 1121 WifiP2pGroup getWifiP2pGroup(String dataString) { 1122 try { 1123 WifiP2pGroup group = new WifiP2pGroup(dataString); 1124 return group; 1125 } catch (IllegalArgumentException e) { 1126 return null; 1127 } 1128 } 1129 1130 /** 1131 * Handle p2p events 1132 */ 1133 private void handleP2pEvents(String dataString) { 1134 if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) { 1135 WifiP2pDevice device = getWifiP2pDevice(dataString); 1136 if (device != null) mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, device); 1137 } else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) { 1138 WifiP2pDevice device = getWifiP2pDevice(dataString); 1139 if (device != null) mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, device); 1140 } else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) { 1141 mStateMachine.sendMessage(P2P_FIND_STOPPED_EVENT); 1142 } else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) { 1143 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_REQUEST_EVENT, 1144 new WifiP2pConfig(dataString)); 1145 } else if (dataString.startsWith(P2P_GO_NEG_SUCCESS_STR)) { 1146 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_SUCCESS_EVENT); 1147 } else if (dataString.startsWith(P2P_GO_NEG_FAILURE_STR)) { 1148 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_FAILURE_EVENT, p2pError(dataString)); 1149 } else if (dataString.startsWith(P2P_GROUP_FORMATION_SUCCESS_STR)) { 1150 mStateMachine.sendMessage(P2P_GROUP_FORMATION_SUCCESS_EVENT); 1151 } else if (dataString.startsWith(P2P_GROUP_FORMATION_FAILURE_STR)) { 1152 mStateMachine.sendMessage(P2P_GROUP_FORMATION_FAILURE_EVENT, p2pError(dataString)); 1153 } else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) { 1154 WifiP2pGroup group = getWifiP2pGroup(dataString); 1155 if (group != null) mStateMachine.sendMessage(P2P_GROUP_STARTED_EVENT, group); 1156 } else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) { 1157 WifiP2pGroup group = getWifiP2pGroup(dataString); 1158 if (group != null) mStateMachine.sendMessage(P2P_GROUP_REMOVED_EVENT, group); 1159 } else if (dataString.startsWith(P2P_INVITATION_RECEIVED_STR)) { 1160 mStateMachine.sendMessage(P2P_INVITATION_RECEIVED_EVENT, 1161 new WifiP2pGroup(dataString)); 1162 } else if (dataString.startsWith(P2P_INVITATION_RESULT_STR)) { 1163 mStateMachine.sendMessage(P2P_INVITATION_RESULT_EVENT, p2pError(dataString)); 1164 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_REQ_STR)) { 1165 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_REQ_EVENT, 1166 new WifiP2pProvDiscEvent(dataString)); 1167 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_RSP_STR)) { 1168 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_RSP_EVENT, 1169 new WifiP2pProvDiscEvent(dataString)); 1170 } else if (dataString.startsWith(P2P_PROV_DISC_ENTER_PIN_STR)) { 1171 mStateMachine.sendMessage(P2P_PROV_DISC_ENTER_PIN_EVENT, 1172 new WifiP2pProvDiscEvent(dataString)); 1173 } else if (dataString.startsWith(P2P_PROV_DISC_SHOW_PIN_STR)) { 1174 mStateMachine.sendMessage(P2P_PROV_DISC_SHOW_PIN_EVENT, 1175 new WifiP2pProvDiscEvent(dataString)); 1176 } else if (dataString.startsWith(P2P_PROV_DISC_FAILURE_STR)) { 1177 mStateMachine.sendMessage(P2P_PROV_DISC_FAILURE_EVENT); 1178 } else if (dataString.startsWith(P2P_SERV_DISC_RESP_STR)) { 1179 List<WifiP2pServiceResponse> list = WifiP2pServiceResponse.newInstance(dataString); 1180 if (list != null) { 1181 mStateMachine.sendMessage(P2P_SERV_DISC_RESP_EVENT, list); 1182 } else { 1183 Log.e(TAG, "Null service resp " + dataString); 1184 } 1185 } 1186 } 1187 1188 /** 1189 * Handle hostap events 1190 */ 1191 private void handleHostApEvents(String dataString) { 1192 String[] tokens = dataString.split(" "); 1193 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1194 if (tokens[0].equals(AP_STA_CONNECTED_STR)) { 1195 mStateMachine.sendMessage(AP_STA_CONNECTED_EVENT, new WifiP2pDevice(dataString)); 1196 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1197 } else if (tokens[0].equals(AP_STA_DISCONNECTED_STR)) { 1198 mStateMachine.sendMessage(AP_STA_DISCONNECTED_EVENT, new WifiP2pDevice(dataString)); 1199 } 1200 } 1201 1202 private static final String ADDR_STRING = "addr="; 1203 private static final String RESULT_STRING = "result="; 1204 1205 // ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 1206 1207 private void handleAnqpResult(String eventStr) { 1208 int addrPos = eventStr.indexOf(ADDR_STRING); 1209 int resPos = eventStr.indexOf(RESULT_STRING); 1210 if (addrPos < 0 || resPos < 0) { 1211 throw new IllegalArgumentException("Unexpected ANQP result notification"); 1212 } 1213 int eoaddr = eventStr.indexOf(' ', addrPos + ADDR_STRING.length()); 1214 if (eoaddr < 0) { 1215 eoaddr = eventStr.length(); 1216 } 1217 int eoresult = eventStr.indexOf(' ', resPos + RESULT_STRING.length()); 1218 if (eoresult < 0) { 1219 eoresult = eventStr.length(); 1220 } 1221 1222 try { 1223 long bssid = Utils.parseMac(eventStr.substring(addrPos + ADDR_STRING.length(), eoaddr)); 1224 int result = eventStr.substring( 1225 resPos + RESULT_STRING.length(), eoresult).equalsIgnoreCase("success") ? 1 : 0; 1226 1227 mStateMachine.sendMessage(ANQP_DONE_EVENT, result, 0, bssid); 1228 } 1229 catch (IllegalArgumentException iae) { 1230 Log.e(TAG, "Bad MAC address in ANQP response: " + iae.getMessage()); 1231 } 1232 } 1233 1234 /** 1235 * Handle ANQP events 1236 */ 1237 private void handleGasQueryEvents(String dataString) { 1238 // hs20 1239 if (mStateMachine2 == null) return; 1240 if (dataString.startsWith(GAS_QUERY_START_STR)) { 1241 mStateMachine2.sendMessage(GAS_QUERY_START_EVENT); 1242 } else if (dataString.startsWith(GAS_QUERY_DONE_STR)) { 1243 String[] dataTokens = dataString.split(" "); 1244 String bssid = null; 1245 int success = 0; 1246 for (String token : dataTokens) { 1247 String[] nameValue = token.split("="); 1248 if (nameValue.length != 2) { 1249 continue; 1250 } 1251 if (nameValue[0].equals("addr")) { 1252 bssid = nameValue[1]; 1253 continue; 1254 } 1255 if (nameValue[0].equals("result")) { 1256 success = nameValue[1].equals("SUCCESS") ? 1 : 0; 1257 continue; 1258 } 1259 } 1260 mStateMachine2.sendMessage(GAS_QUERY_DONE_EVENT, success, 0, bssid); 1261 } else { 1262 if (DBG) Log.d(TAG, "Unknown GAS query event: " + dataString); 1263 } 1264 } 1265 1266 /** 1267 * Handle HS20 events 1268 */ 1269 private void handleHs20Events(String dataString) { 1270 if (mStateMachine2 == null) return; 1271 if (dataString.startsWith(HS20_SUB_REM_STR)) { 1272 // format: HS20-SUBSCRIPTION-REMEDIATION osu_method, url 1273 String[] dataTokens = dataString.split(" "); 1274 int method = -1; 1275 String url = null; 1276 if (dataTokens.length >= 3) { 1277 method = Integer.parseInt(dataTokens[1]); 1278 url = dataTokens[2]; 1279 } 1280 mStateMachine2.sendMessage(HS20_REMEDIATION_EVENT, method, 0, url); 1281 } else if (dataString.startsWith(HS20_DEAUTH_STR)) { 1282 // format: HS20-DEAUTH-IMMINENT-NOTICE code, delay, url 1283 int code = -1; 1284 int delay = -1; 1285 String url = null; 1286 String[] dataTokens = dataString.split(" "); 1287 if (dataTokens.length >= 4) { 1288 code = Integer.parseInt(dataTokens[1]); 1289 delay = Integer.parseInt(dataTokens[2]); 1290 url = dataTokens[3]; 1291 } 1292 mStateMachine2.sendMessage(HS20_DEAUTH_EVENT, code, delay, url); 1293 } else { 1294 if (DBG) Log.d(TAG, "Unknown HS20 event: " + dataString); 1295 } 1296 } 1297 1298 /** 1299 * Handle Supplicant Requests 1300 */ 1301 private void handleRequests(String dataString) { 1302 String SSID = null; 1303 int reason = -2; 1304 String requestName = dataString.substring(REQUEST_PREFIX_LEN_STR); 1305 if (TextUtils.isEmpty(requestName)) { 1306 return; 1307 } 1308 if (requestName.startsWith(IDENTITY_STR)) { 1309 Matcher match = mRequestIdentityPattern.matcher(requestName); 1310 if (match.find()) { 1311 SSID = match.group(2); 1312 try { 1313 reason = Integer.parseInt(match.group(1)); 1314 } catch (NumberFormatException e) { 1315 reason = -1; 1316 } 1317 } else { 1318 Log.e(TAG, "didn't find SSID " + requestName); 1319 } 1320 mStateMachine.sendMessage(SUP_REQUEST_IDENTITY, eventLogCounter, reason, SSID); 1321 } else if (requestName.startsWith(SIM_STR)) { 1322 Matcher matchGsm = mRequestGsmAuthPattern.matcher(requestName); 1323 Matcher matchUmts = mRequestUmtsAuthPattern.matcher(requestName); 1324 WifiStateMachine.SimAuthRequestData data = 1325 new WifiStateMachine.SimAuthRequestData(); 1326 if (matchGsm.find()) { 1327 data.networkId = Integer.parseInt(matchGsm.group(1)); 1328 data.protocol = WifiEnterpriseConfig.Eap.SIM; 1329 data.ssid = matchGsm.group(4); 1330 data.data = matchGsm.group(2).split(":"); 1331 mStateMachine.sendMessage(SUP_REQUEST_SIM_AUTH, data); 1332 } else if (matchUmts.find()) { 1333 data.networkId = Integer.parseInt(matchUmts.group(1)); 1334 data.protocol = WifiEnterpriseConfig.Eap.AKA; 1335 data.ssid = matchUmts.group(4); 1336 data.data = new String[2]; 1337 data.data[0] = matchUmts.group(2); 1338 data.data[1] = matchUmts.group(3); 1339 mStateMachine.sendMessage(SUP_REQUEST_SIM_AUTH, data); 1340 } else { 1341 Log.e(TAG, "couldn't parse SIM auth request - " + requestName); 1342 } 1343 1344 } else { 1345 if (DBG) Log.w(TAG, "couldn't identify request type - " + dataString); 1346 } 1347 } 1348 1349 /** 1350 * Handle the supplicant STATE-CHANGE event 1351 * @param dataString New supplicant state string in the format: 1352 * id=network-id state=new-state 1353 */ 1354 private void handleSupplicantStateChange(String dataString) { 1355 WifiSsid wifiSsid = null; 1356 int index = dataString.lastIndexOf("SSID="); 1357 if (index != -1) { 1358 wifiSsid = WifiSsid.createFromAsciiEncoded( 1359 dataString.substring(index + 5)); 1360 } 1361 String[] dataTokens = dataString.split(" "); 1362 1363 String BSSID = null; 1364 int networkId = -1; 1365 int newState = -1; 1366 for (String token : dataTokens) { 1367 String[] nameValue = token.split("="); 1368 if (nameValue.length != 2) { 1369 continue; 1370 } 1371 1372 if (nameValue[0].equals("BSSID")) { 1373 BSSID = nameValue[1]; 1374 continue; 1375 } 1376 1377 int value; 1378 try { 1379 value = Integer.parseInt(nameValue[1]); 1380 } catch (NumberFormatException e) { 1381 continue; 1382 } 1383 1384 if (nameValue[0].equals("id")) { 1385 networkId = value; 1386 } else if (nameValue[0].equals("state")) { 1387 newState = value; 1388 } 1389 } 1390 1391 if (newState == -1) return; 1392 1393 SupplicantState newSupplicantState = SupplicantState.INVALID; 1394 for (SupplicantState state : SupplicantState.values()) { 1395 if (state.ordinal() == newState) { 1396 newSupplicantState = state; 1397 break; 1398 } 1399 } 1400 if (newSupplicantState == SupplicantState.INVALID) { 1401 Log.w(TAG, "Invalid supplicant state: " + newState); 1402 } 1403 notifySupplicantStateChange(networkId, wifiSsid, BSSID, newSupplicantState); 1404 } 1405 1406 private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data) { 1407 String BSSID = null; 1408 int networkId = -1; 1409 int reason = 0; 1410 int ind = -1; 1411 int local = 0; 1412 Matcher match; 1413 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1414 match = mConnectedEventPattern.matcher(data); 1415 if (!match.find()) { 1416 if (DBG) Log.d(TAG, "handleNetworkStateChange: Couldnt find BSSID in event string"); 1417 } else { 1418 BSSID = match.group(1); 1419 try { 1420 networkId = Integer.parseInt(match.group(2)); 1421 } catch (NumberFormatException e) { 1422 networkId = -1; 1423 } 1424 } 1425 notifyNetworkStateChange(newState, BSSID, networkId, reason); 1426 } else if (newState == NetworkInfo.DetailedState.DISCONNECTED) { 1427 match = mDisconnectedEventPattern.matcher(data); 1428 if (!match.find()) { 1429 if (DBG) Log.d(TAG, "handleNetworkStateChange: Could not parse disconnect string"); 1430 } else { 1431 BSSID = match.group(1); 1432 try { 1433 reason = Integer.parseInt(match.group(2)); 1434 } catch (NumberFormatException e) { 1435 reason = -1; 1436 } 1437 try { 1438 local = Integer.parseInt(match.group(3)); 1439 } catch (NumberFormatException e) { 1440 local = -1; 1441 } 1442 } 1443 notifyNetworkStateChange(newState, BSSID, local, reason); 1444 } 1445 } 1446 1447 /** 1448 * Send the state machine a notification that the state of Wifi connectivity 1449 * has changed. 1450 * @param newState the new network state 1451 * @param BSSID when the new state is {@link NetworkInfo.DetailedState#CONNECTED}, 1452 * this is the MAC address of the access point. Otherwise, it 1453 * is {@code null}. 1454 * @param netId the configured network on which the state change occurred 1455 */ 1456 void notifyNetworkStateChange(NetworkInfo.DetailedState newState, 1457 String BSSID, int netId, int reason) { 1458 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1459 Message m = mStateMachine.obtainMessage(NETWORK_CONNECTION_EVENT, 1460 netId, reason, BSSID); 1461 mStateMachine.sendMessage(m); 1462 } else { 1463 1464 Message m = mStateMachine.obtainMessage(NETWORK_DISCONNECTION_EVENT, 1465 netId, reason, BSSID); 1466 if (DBG) logDbg("WifiMonitor notify network disconnect: " 1467 + BSSID 1468 + " reason=" + Integer.toString(reason)); 1469 mStateMachine.sendMessage(m); 1470 } 1471 } 1472 1473 /** 1474 * Send the state machine a notification that the state of the supplicant 1475 * has changed. 1476 * @param networkId the configured network on which the state change occurred 1477 * @param wifiSsid network name 1478 * @param BSSID network address 1479 * @param newState the new {@code SupplicantState} 1480 */ 1481 void notifySupplicantStateChange(int networkId, WifiSsid wifiSsid, String BSSID, 1482 SupplicantState newState) { 1483 mStateMachine.sendMessage(mStateMachine.obtainMessage(SUPPLICANT_STATE_CHANGE_EVENT, 1484 eventLogCounter, 0, 1485 new StateChangeResult(networkId, wifiSsid, BSSID, newState))); 1486 } 1487 } 1488
