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.Handler; 30 import android.os.Message; 31 import android.text.TextUtils; 32 import android.util.ArraySet; 33 import android.util.Base64; 34 import android.util.LocalLog; 35 import android.util.Log; 36 import android.util.SparseArray; 37 38 import com.android.server.wifi.hotspot2.IconEvent; 39 import com.android.server.wifi.hotspot2.Utils; 40 import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus; 41 42 import com.android.internal.util.Protocol; 43 import com.android.internal.util.StateMachine; 44 45 import java.io.IOException; 46 import java.util.HashMap; 47 import java.util.LinkedHashMap; 48 import java.util.List; 49 import java.util.Map; 50 import java.util.Set; 51 import java.util.regex.Matcher; 52 import java.util.regex.Pattern; 53 54 /** 55 * Listens for events from the wpa_supplicant server, and passes them on 56 * to the {@link StateMachine} for handling. Runs in its own thread. 57 * 58 * @hide 59 */ 60 public class WifiMonitor { 61 62 private static boolean DBG = false; 63 private static final boolean VDBG = false; 64 private static final String TAG = "WifiMonitor"; 65 66 /** Events we receive from the supplicant daemon */ 67 68 private static final int CONNECTED = 1; 69 private static final int DISCONNECTED = 2; 70 private static final int STATE_CHANGE = 3; 71 private static final int SCAN_RESULTS = 4; 72 private static final int LINK_SPEED = 5; 73 private static final int TERMINATING = 6; 74 private static final int DRIVER_STATE = 7; 75 private static final int EAP_FAILURE = 8; 76 private static final int ASSOC_REJECT = 9; 77 private static final int SSID_TEMP_DISABLE = 10; 78 private static final int SSID_REENABLE = 11; 79 private static final int BSS_ADDED = 12; 80 private static final int BSS_REMOVED = 13; 81 private static final int UNKNOWN = 14; 82 private static final int SCAN_FAILED = 15; 83 84 /** All events coming from the supplicant start with this prefix */ 85 private static final String EVENT_PREFIX_STR = "CTRL-EVENT-"; 86 private static final int EVENT_PREFIX_LEN_STR = EVENT_PREFIX_STR.length(); 87 88 /** All events coming from the supplicant start with this prefix */ 89 private static final String REQUEST_PREFIX_STR = "CTRL-REQ-"; 90 private static final int REQUEST_PREFIX_LEN_STR = REQUEST_PREFIX_STR.length(); 91 92 93 /** All WPA events coming from the supplicant start with this prefix */ 94 private static final String WPA_EVENT_PREFIX_STR = "WPA:"; 95 private static final String PASSWORD_MAY_BE_INCORRECT_STR = 96 "pre-shared key may be incorrect"; 97 98 /* WPS events */ 99 private static final String WPS_SUCCESS_STR = "WPS-SUCCESS"; 100 101 /* Format: WPS-FAIL msg=%d [config_error=%d] [reason=%d (%s)] */ 102 private static final String WPS_FAIL_STR = "WPS-FAIL"; 103 private static final String WPS_FAIL_PATTERN = 104 "WPS-FAIL msg=\\d+(?: config_error=(\\d+))?(?: reason=(\\d+))?"; 105 106 /* config error code values for config_error=%d */ 107 private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12; 108 private static final int CONFIG_AUTH_FAILURE = 18; 109 110 /* reason code values for reason=%d */ 111 private static final int REASON_TKIP_ONLY_PROHIBITED = 1; 112 private static final int REASON_WEP_PROHIBITED = 2; 113 114 private static final String WPS_OVERLAP_STR = "WPS-OVERLAP-DETECTED"; 115 private static final String WPS_TIMEOUT_STR = "WPS-TIMEOUT"; 116 117 /* Hotspot 2.0 ANQP query events */ 118 private static final String GAS_QUERY_PREFIX_STR = "GAS-QUERY-"; 119 private static final String GAS_QUERY_START_STR = "GAS-QUERY-START"; 120 private static final String GAS_QUERY_DONE_STR = "GAS-QUERY-DONE"; 121 private static final String RX_HS20_ANQP_ICON_STR = "RX-HS20-ANQP-ICON"; 122 private static final int RX_HS20_ANQP_ICON_STR_LEN = RX_HS20_ANQP_ICON_STR.length(); 123 124 /* Hotspot 2.0 events */ 125 private static final String HS20_PREFIX_STR = "HS20-"; 126 public static final String HS20_SUB_REM_STR = "HS20-SUBSCRIPTION-REMEDIATION"; 127 public static final String HS20_DEAUTH_STR = "HS20-DEAUTH-IMMINENT-NOTICE"; 128 129 private static final String IDENTITY_STR = "IDENTITY"; 130 131 private static final String SIM_STR = "SIM"; 132 133 134 //used to debug and detect if we miss an event 135 private static int eventLogCounter = 0; 136 137 /** 138 * Names of events from wpa_supplicant (minus the prefix). In the 139 * format descriptions, * "<code>x</code>" 140 * designates a dynamic value that needs to be parsed out from the event 141 * string 142 */ 143 /** 144 * <pre> 145 * CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed 146 * </pre> 147 * <code>xx:xx:xx:xx:xx:xx</code> is the BSSID of the associated access point 148 */ 149 private static final String CONNECTED_STR = "CONNECTED"; 150 private static final String ConnectPrefix = "Connection to "; 151 private static final String ConnectSuffix = " completed"; 152 153 /** 154 * <pre> 155 * CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys 156 * </pre> 157 */ 158 private static final String DISCONNECTED_STR = "DISCONNECTED"; 159 /** 160 * <pre> 161 * CTRL-EVENT-STATE-CHANGE x 162 * </pre> 163 * <code>x</code> is the numerical value of the new state. 164 */ 165 private static final String STATE_CHANGE_STR = "STATE-CHANGE"; 166 /** 167 * <pre> 168 * CTRL-EVENT-SCAN-RESULTS ready 169 * </pre> 170 */ 171 private static final String SCAN_RESULTS_STR = "SCAN-RESULTS"; 172 173 /** 174 * <pre> 175 * CTRL-EVENT-SCAN-FAILED ret=code[ retry=1] 176 * </pre> 177 */ 178 private static final String SCAN_FAILED_STR = "SCAN-FAILED"; 179 180 /** 181 * <pre> 182 * CTRL-EVENT-LINK-SPEED x Mb/s 183 * </pre> 184 * {@code x} is the link speed in Mb/sec. 185 */ 186 private static final String LINK_SPEED_STR = "LINK-SPEED"; 187 /** 188 * <pre> 189 * CTRL-EVENT-TERMINATING - signal x 190 * </pre> 191 * <code>x</code> is the signal that caused termination. 192 */ 193 private static final String TERMINATING_STR = "TERMINATING"; 194 /** 195 * <pre> 196 * CTRL-EVENT-DRIVER-STATE state 197 * </pre> 198 * <code>state</code> can be HANGED 199 */ 200 private static final String DRIVER_STATE_STR = "DRIVER-STATE"; 201 /** 202 * <pre> 203 * CTRL-EVENT-EAP-FAILURE EAP authentication failed 204 * </pre> 205 */ 206 private static final String EAP_FAILURE_STR = "EAP-FAILURE"; 207 208 /** 209 * This indicates an authentication failure on EAP FAILURE event 210 */ 211 private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed"; 212 213 /* EAP authentication timeout events */ 214 private static final String AUTH_EVENT_PREFIX_STR = "Authentication with"; 215 private static final String AUTH_TIMEOUT_STR = "timed out."; 216 217 /** 218 * This indicates an assoc reject event 219 */ 220 private static final String ASSOC_REJECT_STR = "ASSOC-REJECT"; 221 222 /** 223 * This indicates auth or association failure bad enough so as network got disabled 224 * - WPA_PSK auth failure suspecting shared key mismatch 225 * - failed multiple Associations 226 */ 227 private static final String TEMP_DISABLED_STR = "SSID-TEMP-DISABLED"; 228 229 /** 230 * This indicates a previously disabled SSID was reenabled by supplicant 231 */ 232 private static final String REENABLED_STR = "SSID-REENABLED"; 233 234 /** 235 * This indicates supplicant found a given BSS 236 */ 237 private static final String BSS_ADDED_STR = "BSS-ADDED"; 238 239 /** 240 * This indicates supplicant removed a given BSS 241 */ 242 private static final String BSS_REMOVED_STR = "BSS-REMOVED"; 243 244 /** 245 * Regex pattern for extracting an Ethernet-style MAC address from a string. 246 * Matches a strings like the following:<pre> 247 * CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre> 248 */ 249 private static Pattern mConnectedEventPattern = 250 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) "); 251 252 /** 253 * Regex pattern for extracting an Ethernet-style MAC address from a string. 254 * Matches a strings like the following:<pre> 255 * CTRL-EVENT-DISCONNECTED - bssid=ac:22:0b:24:70:74 reason=3 locally_generated=1 256 */ 257 private static Pattern mDisconnectedEventPattern = 258 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 259 "reason=([0-9]+) +locally_generated=([0-1])"); 260 261 /** 262 * Regex pattern for extracting an Ethernet-style MAC address from a string. 263 * Matches a strings like the following:<pre> 264 * CTRL-EVENT-ASSOC-REJECT - bssid=ac:22:0b:24:70:74 status_code=1 265 */ 266 private static Pattern mAssocRejectEventPattern = 267 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) +" + 268 "status_code=([0-9]+)"); 269 270 /** 271 * Regex pattern for extracting an Ethernet-style MAC address from a string. 272 * Matches a strings like the following:<pre> 273 * IFNAME=wlan0 Trying to associate with 6c:f3:7f:ae:87:71 274 */ 275 private static final String TARGET_BSSID_STR = "Trying to associate with "; 276 277 private static Pattern mTargetBSSIDPattern = 278 Pattern.compile("Trying to associate with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 279 280 /** 281 * Regex pattern for extracting an Ethernet-style MAC address from a string. 282 * Matches a strings like the following:<pre> 283 * IFNAME=wlan0 Associated with 6c:f3:7f:ae:87:71 284 */ 285 private static final String ASSOCIATED_WITH_STR = "Associated with "; 286 287 private static Pattern mAssociatedPattern = 288 Pattern.compile("Associated with ((?:[0-9a-f]{2}:){5}[0-9a-f]{2}).*"); 289 290 /** 291 * Regex pattern for extracting an external GSM sim authentication request from a string. 292 * Matches a strings like the following:<pre> 293 * CTRL-REQ-SIM-<network id>:GSM-AUTH:<RAND1>:<RAND2>[:<RAND3>] needed for SSID <SSID> 294 * This pattern should find 295 * 0 - id 296 * 1 - Rand1 297 * 2 - Rand2 298 * 3 - Rand3 299 * 4 - SSID 300 */ 301 private static Pattern mRequestGsmAuthPattern = 302 Pattern.compile("SIM-([0-9]*):GSM-AUTH((:[0-9a-f]+)+) needed for SSID (.+)"); 303 304 /** 305 * Regex pattern for extracting an external 3G sim authentication request from a string. 306 * Matches a strings like the following:<pre> 307 * CTRL-REQ-SIM-<network id>:UMTS-AUTH:<RAND>:<AUTN> needed for SSID <SSID> 308 * This pattern should find 309 * 1 - id 310 * 2 - Rand 311 * 3 - Autn 312 * 4 - SSID 313 */ 314 private static Pattern mRequestUmtsAuthPattern = 315 Pattern.compile("SIM-([0-9]*):UMTS-AUTH:([0-9a-f]+):([0-9a-f]+) needed for SSID (.+)"); 316 317 /** 318 * Regex pattern for extracting SSIDs from request identity string. 319 * Matches a strings like the following:<pre> 320 * CTRL-REQ-IDENTITY-xx:Identity needed for SSID XXXX</pre> 321 */ 322 private static Pattern mRequestIdentityPattern = 323 Pattern.compile("IDENTITY-([0-9]+):Identity needed for SSID (.+)"); 324 325 /** P2P events */ 326 private static final String P2P_EVENT_PREFIX_STR = "P2P"; 327 328 /* P2P-DEVICE-FOUND fa:7b:7a:42:02:13 p2p_dev_addr=fa:7b:7a:42:02:13 pri_dev_type=1-0050F204-1 329 name='p2p-TEST1' config_methods=0x188 dev_capab=0x27 group_capab=0x0 */ 330 private static final String P2P_DEVICE_FOUND_STR = "P2P-DEVICE-FOUND"; 331 332 /* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */ 333 private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST"; 334 335 /* P2P-FIND-STOPPED */ 336 private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED"; 337 338 /* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */ 339 private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST"; 340 341 private static final String P2P_GO_NEG_SUCCESS_STR = "P2P-GO-NEG-SUCCESS"; 342 343 /* P2P-GO-NEG-FAILURE status=x */ 344 private static final String P2P_GO_NEG_FAILURE_STR = "P2P-GO-NEG-FAILURE"; 345 346 private static final String P2P_GROUP_FORMATION_SUCCESS_STR = 347 "P2P-GROUP-FORMATION-SUCCESS"; 348 349 private static final String P2P_GROUP_FORMATION_FAILURE_STR = 350 "P2P-GROUP-FORMATION-FAILURE"; 351 352 /* P2P-GROUP-STARTED p2p-wlan0-0 [client|GO] ssid="DIRECT-W8" freq=2437 353 [psk=2182b2e50e53f260d04f3c7b25ef33c965a3291b9b36b455a82d77fd82ca15bc|passphrase="fKG4jMe3"] 354 go_dev_addr=fa:7b:7a:42:02:13 [PERSISTENT] */ 355 private static final String P2P_GROUP_STARTED_STR = "P2P-GROUP-STARTED"; 356 357 /* P2P-GROUP-REMOVED p2p-wlan0-0 [client|GO] reason=REQUESTED */ 358 private static final String P2P_GROUP_REMOVED_STR = "P2P-GROUP-REMOVED"; 359 360 /* P2P-INVITATION-RECEIVED sa=fa:7b:7a:42:02:13 go_dev_addr=f8:7b:7a:42:02:13 361 bssid=fa:7b:7a:42:82:13 unknown-network */ 362 private static final String P2P_INVITATION_RECEIVED_STR = "P2P-INVITATION-RECEIVED"; 363 364 /* P2P-INVITATION-RESULT status=1 */ 365 private static final String P2P_INVITATION_RESULT_STR = "P2P-INVITATION-RESULT"; 366 367 /* P2P-PROV-DISC-PBC-REQ 42:fc:89:e1:e2:27 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_PBC_REQ_STR = "P2P-PROV-DISC-PBC-REQ"; 371 372 /* P2P-PROV-DISC-PBC-RESP 02:12:47:f2:5a:36 */ 373 private static final String P2P_PROV_DISC_PBC_RSP_STR = "P2P-PROV-DISC-PBC-RESP"; 374 375 /* P2P-PROV-DISC-ENTER-PIN 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 376 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 377 group_capab=0x0 */ 378 private static final String P2P_PROV_DISC_ENTER_PIN_STR = "P2P-PROV-DISC-ENTER-PIN"; 379 /* P2P-PROV-DISC-SHOW-PIN 42:fc:89:e1:e2:27 44490607 p2p_dev_addr=42:fc:89:e1:e2:27 380 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 381 group_capab=0x0 */ 382 private static final String P2P_PROV_DISC_SHOW_PIN_STR = "P2P-PROV-DISC-SHOW-PIN"; 383 /* P2P-PROV-DISC-FAILURE p2p_dev_addr=42:fc:89:e1:e2:27 */ 384 private static final String P2P_PROV_DISC_FAILURE_STR = "P2P-PROV-DISC-FAILURE"; 385 386 /* 387 * Protocol format is as follows.<br> 388 * See the Table.62 in the WiFi Direct specification for the detail. 389 * ______________________________________________________________ 390 * | Length(2byte) | Type(1byte) | TransId(1byte)}| 391 * ______________________________________________________________ 392 * | status(1byte) | vendor specific(variable) | 393 * 394 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300000101 395 * length=3, service type=0(ALL Service), transaction id=1, 396 * status=1(service protocol type not available)<br> 397 * 398 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300020201 399 * length=3, service type=2(UPnP), transaction id=2, 400 * status=1(service protocol type not available) 401 * 402 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 990002030010757569643a3131323 403 * 2646534652d383537342d353961622d393332322d3333333435363738393034343a3 404 * a75726e3a736368656d61732d75706e702d6f72673a736572766963653a436f6e746 405 * 56e744469726563746f72793a322c757569643a36383539646564652d383537342d3 406 * 53961622d393333322d3132333435363738393031323a3a75706e703a726f6f74646 407 * 576696365 408 * length=153,type=2(UPnP),transaction id=3,status=0 409 * 410 * UPnP Protocol format is as follows. 411 * ______________________________________________________ 412 * | Version (1) | USN (Variable) | 413 * 414 * version=0x10(UPnP1.0) data=usn:uuid:1122de4e-8574-59ab-9322-33345678 415 * 9044::urn:schemas-upnp-org:service:ContentDirectory:2,usn:uuid:6859d 416 * ede-8574-59ab-9332-123456789012::upnp:rootdevice 417 * 418 * P2P-SERV-DISC-RESP 58:17:0c:bc:dd:ca 21 1900010200045f6970 419 * 70c00c000c01094d795072696e746572c027 420 * length=25, type=1(Bonjour),transaction id=2,status=0 421 * 422 * Bonjour Protocol format is as follows. 423 * __________________________________________________________ 424 * |DNS Name(Variable)|DNS Type(1)|Version(1)|RDATA(Variable)| 425 * 426 * DNS Name=_ipp._tcp.local.,DNS type=12(PTR), Version=1, 427 * RDATA=MyPrinter._ipp._tcp.local. 428 * 429 */ 430 private static final String P2P_SERV_DISC_RESP_STR = "P2P-SERV-DISC-RESP"; 431 432 private static final String HOST_AP_EVENT_PREFIX_STR = "AP"; 433 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 dev_addr=02:90:4c:a0:92:54 */ 434 private static final String AP_STA_CONNECTED_STR = "AP-STA-CONNECTED"; 435 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 */ 436 private static final String AP_STA_DISCONNECTED_STR = "AP-STA-DISCONNECTED"; 437 private static final String ANQP_DONE_STR = "ANQP-QUERY-DONE"; 438 private static final String HS20_ICON_STR = "RX-HS20-ICON"; 439 440 /* Supplicant events reported to a state machine */ 441 private static final int BASE = Protocol.BASE_WIFI_MONITOR; 442 443 /* Connection to supplicant established */ 444 public static final int SUP_CONNECTION_EVENT = BASE + 1; 445 /* Connection to supplicant lost */ 446 public static final int SUP_DISCONNECTION_EVENT = BASE + 2; 447 /* Network connection completed */ 448 public static final int NETWORK_CONNECTION_EVENT = BASE + 3; 449 /* Network disconnection completed */ 450 public static final int NETWORK_DISCONNECTION_EVENT = BASE + 4; 451 /* Scan results are available */ 452 public static final int SCAN_RESULTS_EVENT = BASE + 5; 453 /* Supplicate state changed */ 454 public static final int SUPPLICANT_STATE_CHANGE_EVENT = BASE + 6; 455 /* Password failure and EAP authentication failure */ 456 public static final int AUTHENTICATION_FAILURE_EVENT = BASE + 7; 457 /* WPS success detected */ 458 public static final int WPS_SUCCESS_EVENT = BASE + 8; 459 /* WPS failure detected */ 460 public static final int WPS_FAIL_EVENT = BASE + 9; 461 /* WPS overlap detected */ 462 public static final int WPS_OVERLAP_EVENT = BASE + 10; 463 /* WPS timeout detected */ 464 public static final int WPS_TIMEOUT_EVENT = BASE + 11; 465 /* Driver was hung */ 466 public static final int DRIVER_HUNG_EVENT = BASE + 12; 467 /* SSID was disabled due to auth failure or excessive 468 * connection failures */ 469 public static final int SSID_TEMP_DISABLED = BASE + 13; 470 /* SSID reenabled by supplicant */ 471 public static final int SSID_REENABLED = BASE + 14; 472 473 /* Request Identity */ 474 public static final int SUP_REQUEST_IDENTITY = BASE + 15; 475 476 /* Request SIM Auth */ 477 public static final int SUP_REQUEST_SIM_AUTH = BASE + 16; 478 479 public static final int SCAN_FAILED_EVENT = BASE + 17; 480 481 /* P2P events */ 482 public static final int P2P_DEVICE_FOUND_EVENT = BASE + 21; 483 public static final int P2P_DEVICE_LOST_EVENT = BASE + 22; 484 public static final int P2P_GO_NEGOTIATION_REQUEST_EVENT = BASE + 23; 485 public static final int P2P_GO_NEGOTIATION_SUCCESS_EVENT = BASE + 25; 486 public static final int P2P_GO_NEGOTIATION_FAILURE_EVENT = BASE + 26; 487 public static final int P2P_GROUP_FORMATION_SUCCESS_EVENT = BASE + 27; 488 public static final int P2P_GROUP_FORMATION_FAILURE_EVENT = BASE + 28; 489 public static final int P2P_GROUP_STARTED_EVENT = BASE + 29; 490 public static final int P2P_GROUP_REMOVED_EVENT = BASE + 30; 491 public static final int P2P_INVITATION_RECEIVED_EVENT = BASE + 31; 492 public static final int P2P_INVITATION_RESULT_EVENT = BASE + 32; 493 public static final int P2P_PROV_DISC_PBC_REQ_EVENT = BASE + 33; 494 public static final int P2P_PROV_DISC_PBC_RSP_EVENT = BASE + 34; 495 public static final int P2P_PROV_DISC_ENTER_PIN_EVENT = BASE + 35; 496 public static final int P2P_PROV_DISC_SHOW_PIN_EVENT = BASE + 36; 497 public static final int P2P_FIND_STOPPED_EVENT = BASE + 37; 498 public static final int P2P_SERV_DISC_RESP_EVENT = BASE + 38; 499 public static final int P2P_PROV_DISC_FAILURE_EVENT = BASE + 39; 500 501 /* hostap events */ 502 public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41; 503 public static final int AP_STA_CONNECTED_EVENT = BASE + 42; 504 505 /* Indicates assoc reject event */ 506 public static final int ASSOCIATION_REJECTION_EVENT = BASE + 43; 507 public static final int ANQP_DONE_EVENT = BASE + 44; 508 509 /* hotspot 2.0 ANQP events */ 510 public static final int GAS_QUERY_START_EVENT = BASE + 51; 511 public static final int GAS_QUERY_DONE_EVENT = BASE + 52; 512 public static final int RX_HS20_ANQP_ICON_EVENT = BASE + 53; 513 514 /* hotspot 2.0 events */ 515 public static final int HS20_REMEDIATION_EVENT = BASE + 61; 516 517 /** 518 * This indicates a read error on the monitor socket conenction 519 */ 520 private static final String WPA_RECV_ERROR_STR = "recv error"; 521 522 /** 523 * Max errors before we close supplicant connection 524 */ 525 private static final int MAX_RECV_ERRORS = 10; 526 527 // Singleton instance 528 private static WifiMonitor sWifiMonitor = new WifiMonitor(); getInstance()529 public static WifiMonitor getInstance() { 530 return sWifiMonitor; 531 } 532 533 private final WifiNative mWifiNative; WifiMonitor()534 private WifiMonitor() { 535 mWifiNative = WifiNative.getWlanNativeInterface(); 536 } 537 538 private int mRecvErrors = 0; 539 enableVerboseLogging(int verbose)540 void enableVerboseLogging(int verbose) { 541 if (verbose > 0) { 542 DBG = true; 543 } else { 544 DBG = false; 545 } 546 } 547 548 private boolean mConnected = false; 549 550 // TODO(b/27569474) remove support for multiple handlers for the same event 551 private final Map<String, SparseArray<Set<Handler>>> mHandlerMap = new HashMap<>(); registerHandler(String iface, int what, Handler handler)552 public synchronized void registerHandler(String iface, int what, Handler handler) { 553 SparseArray<Set<Handler>> ifaceHandlers = mHandlerMap.get(iface); 554 if (ifaceHandlers == null) { 555 ifaceHandlers = new SparseArray<>(); 556 mHandlerMap.put(iface, ifaceHandlers); 557 } 558 Set<Handler> ifaceWhatHandlers = ifaceHandlers.get(what); 559 if (ifaceWhatHandlers == null) { 560 ifaceWhatHandlers = new ArraySet<>(); 561 ifaceHandlers.put(what, ifaceWhatHandlers); 562 } 563 ifaceWhatHandlers.add(handler); 564 } 565 566 private final Map<String, Boolean> mMonitoringMap = new HashMap<>(); isMonitoring(String iface)567 private boolean isMonitoring(String iface) { 568 Boolean val = mMonitoringMap.get(iface); 569 if (val == null) { 570 return false; 571 } 572 else { 573 return val.booleanValue(); 574 } 575 } 576 setMonitoring(String iface, boolean enabled)577 private void setMonitoring(String iface, boolean enabled) { 578 mMonitoringMap.put(iface, enabled); 579 } setMonitoringNone()580 private void setMonitoringNone() { 581 for (String iface : mMonitoringMap.keySet()) { 582 setMonitoring(iface, false); 583 } 584 } 585 586 ensureConnectedLocked()587 private boolean ensureConnectedLocked() { 588 if (mConnected) { 589 return true; 590 } 591 592 if (DBG) Log.d(TAG, "connecting to supplicant"); 593 int connectTries = 0; 594 while (true) { 595 if (mWifiNative.connectToSupplicant()) { 596 mConnected = true; 597 new MonitorThread(mWifiNative.getLocalLog()).start(); 598 return true; 599 } 600 if (connectTries++ < 5) { 601 try { 602 Thread.sleep(1000); 603 } catch (InterruptedException ignore) { 604 } 605 } else { 606 return false; 607 } 608 } 609 } 610 startMonitoring(String iface)611 public synchronized void startMonitoring(String iface) { 612 Log.d(TAG, "startMonitoring(" + iface + ") with mConnected = " + mConnected); 613 614 if (ensureConnectedLocked()) { 615 setMonitoring(iface, true); 616 sendMessage(iface, SUP_CONNECTION_EVENT); 617 } 618 else { 619 boolean originalMonitoring = isMonitoring(iface); 620 setMonitoring(iface, true); 621 sendMessage(iface, SUP_DISCONNECTION_EVENT); 622 setMonitoring(iface, originalMonitoring); 623 Log.e(TAG, "startMonitoring(" + iface + ") failed!"); 624 } 625 } 626 stopMonitoring(String iface)627 public synchronized void stopMonitoring(String iface) { 628 if (DBG) Log.d(TAG, "stopMonitoring(" + iface + ")"); 629 setMonitoring(iface, true); 630 sendMessage(iface, SUP_DISCONNECTION_EVENT); 631 setMonitoring(iface, false); 632 } 633 stopSupplicant()634 public synchronized void stopSupplicant() { 635 mWifiNative.stopSupplicant(); 636 } 637 killSupplicant(boolean p2pSupported)638 public synchronized void killSupplicant(boolean p2pSupported) { 639 String suppState = System.getProperty("init.svc.wpa_supplicant"); 640 if (suppState == null) suppState = "unknown"; 641 String p2pSuppState = System.getProperty("init.svc.p2p_supplicant"); 642 if (p2pSuppState == null) p2pSuppState = "unknown"; 643 644 Log.e(TAG, "killSupplicant p2p" + p2pSupported 645 + " init.svc.wpa_supplicant=" + suppState 646 + " init.svc.p2p_supplicant=" + p2pSuppState); 647 mWifiNative.killSupplicant(p2pSupported); 648 mConnected = false; 649 setMonitoringNone(); 650 } 651 652 653 /** 654 * Similar functions to Handler#sendMessage that send the message to the registered handler 655 * for the given interface and message what. 656 * All of these should be called with the WifiMonitor class lock 657 */ sendMessage(String iface, int what)658 private void sendMessage(String iface, int what) { 659 sendMessage(iface, Message.obtain(null, what)); 660 } 661 sendMessage(String iface, int what, Object obj)662 private void sendMessage(String iface, int what, Object obj) { 663 sendMessage(iface, Message.obtain(null, what, obj)); 664 } 665 sendMessage(String iface, int what, int arg1)666 private void sendMessage(String iface, int what, int arg1) { 667 sendMessage(iface, Message.obtain(null, what, arg1, 0)); 668 } 669 sendMessage(String iface, int what, int arg1, int arg2)670 private void sendMessage(String iface, int what, int arg1, int arg2) { 671 sendMessage(iface, Message.obtain(null, what, arg1, arg2)); 672 } 673 sendMessage(String iface, int what, int arg1, int arg2, Object obj)674 private void sendMessage(String iface, int what, int arg1, int arg2, Object obj) { 675 sendMessage(iface, Message.obtain(null, what, arg1, arg2, obj)); 676 } 677 sendMessage(String iface, Message message)678 private void sendMessage(String iface, Message message) { 679 SparseArray<Set<Handler>> ifaceHandlers = mHandlerMap.get(iface); 680 if (iface != null && ifaceHandlers != null) { 681 if (isMonitoring(iface)) { 682 boolean firstHandler = true; 683 Set<Handler> ifaceWhatHandlers = ifaceHandlers.get(message.what); 684 if (ifaceWhatHandlers != null) { 685 for (Handler handler : ifaceWhatHandlers) { 686 if (firstHandler) { 687 firstHandler = false; 688 sendMessage(handler, message); 689 } 690 else { 691 sendMessage(handler, Message.obtain(message)); 692 } 693 } 694 } 695 } else { 696 if (DBG) Log.d(TAG, "Dropping event because (" + iface + ") is stopped"); 697 } 698 } else { 699 if (DBG) Log.d(TAG, "Sending to all monitors because there's no matching iface"); 700 boolean firstHandler = true; 701 for (Map.Entry<String, SparseArray<Set<Handler>>> entry : mHandlerMap.entrySet()) { 702 if (isMonitoring(entry.getKey())) { 703 Set<Handler> ifaceWhatHandlers = entry.getValue().get(message.what); 704 for (Handler handler : ifaceWhatHandlers) { 705 if (firstHandler) { 706 firstHandler = false; 707 sendMessage(handler, message); 708 } 709 else { 710 sendMessage(handler, Message.obtain(message)); 711 } 712 } 713 } 714 } 715 } 716 } 717 sendMessage(Handler handler, Message message)718 private void sendMessage(Handler handler, Message message) { 719 if (handler != null) { 720 message.setTarget(handler); 721 message.sendToTarget(); 722 } 723 } 724 725 private class MonitorThread extends Thread { 726 private final LocalLog mLocalLog; 727 MonitorThread(LocalLog localLog)728 public MonitorThread(LocalLog localLog) { 729 super("WifiMonitor"); 730 mLocalLog = localLog; 731 } 732 run()733 public void run() { 734 if (DBG) { 735 Log.d(TAG, "MonitorThread start with mConnected=" + mConnected); 736 } 737 //noinspection InfiniteLoopStatement 738 for (;;) { 739 if (!mConnected) { 740 if (DBG) Log.d(TAG, "MonitorThread exit because mConnected is false"); 741 break; 742 } 743 String eventStr = mWifiNative.waitForEvent(); 744 745 // Skip logging the common but mostly uninteresting events 746 if (!eventStr.contains(BSS_ADDED_STR) && !eventStr.contains(BSS_REMOVED_STR)) { 747 if (DBG) Log.d(TAG, "Event [" + eventStr + "]"); 748 mLocalLog.log("Event [" + eventStr + "]"); 749 } 750 751 if (dispatchEvent(eventStr)) { 752 if (DBG) Log.d(TAG, "Disconnecting from the supplicant, no more events"); 753 break; 754 } 755 } 756 } 757 } 758 dispatchEvent(String eventStr)759 private synchronized boolean dispatchEvent(String eventStr) { 760 String iface; 761 // IFNAME=wlan0 ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 762 if (eventStr.startsWith("IFNAME=")) { 763 int space = eventStr.indexOf(' '); 764 if (space != -1) { 765 iface = eventStr.substring(7, space); 766 if (!mHandlerMap.containsKey(iface) && iface.startsWith("p2p-")) { 767 // p2p interfaces are created dynamically, but we have 768 // only one P2p state machine monitoring all of them; look 769 // for it explicitly, and send messages there .. 770 iface = "p2p0"; 771 } 772 eventStr = eventStr.substring(space + 1); 773 } else { 774 // No point dispatching this event to any interface, the dispatched 775 // event string will begin with "IFNAME=" which dispatchEvent can't really 776 // do anything about. 777 Log.e(TAG, "Dropping malformed event (unparsable iface): " + eventStr); 778 return false; 779 } 780 } else { 781 // events without prefix belong to p2p0 monitor 782 iface = "p2p0"; 783 } 784 785 if (VDBG) Log.d(TAG, "Dispatching event to interface: " + iface); 786 787 if (dispatchEvent(eventStr, iface)) { 788 mConnected = false; 789 return true; 790 } 791 return false; 792 } 793 794 private Map<String, Long> mLastConnectBSSIDs = new HashMap<String, Long>() { 795 public Long get(String iface) { 796 Long value = super.get(iface); 797 if (value != null) { 798 return value; 799 } 800 return 0L; 801 } 802 }; 803 804 /* @return true if the event was supplicant disconnection */ dispatchEvent(String eventStr, String iface)805 private boolean dispatchEvent(String eventStr, String iface) { 806 if (DBG) { 807 // Dont log CTRL-EVENT-BSS-ADDED which are too verbose and not handled 808 if (eventStr != null && !eventStr.contains("CTRL-EVENT-BSS-ADDED")) { 809 Log.d(TAG, iface + " cnt=" + Integer.toString(eventLogCounter) 810 + " dispatchEvent: " + eventStr); 811 } 812 } 813 814 if (!eventStr.startsWith(EVENT_PREFIX_STR)) { 815 if (eventStr.startsWith(WPS_SUCCESS_STR)) { 816 sendMessage(iface, WPS_SUCCESS_EVENT); 817 } else if (eventStr.startsWith(WPS_FAIL_STR)) { 818 handleWpsFailEvent(eventStr, iface); 819 } else if (eventStr.startsWith(WPS_OVERLAP_STR)) { 820 sendMessage(iface, WPS_OVERLAP_EVENT); 821 } else if (eventStr.startsWith(WPS_TIMEOUT_STR)) { 822 sendMessage(iface, WPS_TIMEOUT_EVENT); 823 } else if (eventStr.startsWith(P2P_EVENT_PREFIX_STR)) { 824 handleP2pEvents(eventStr, iface); 825 } else if (eventStr.startsWith(HOST_AP_EVENT_PREFIX_STR)) { 826 handleHostApEvents(eventStr, iface); 827 } else if (eventStr.startsWith(ANQP_DONE_STR)) { 828 try { 829 handleAnqpResult(eventStr, iface); 830 } 831 catch (IllegalArgumentException iae) { 832 Log.e(TAG, "Bad ANQP event string: '" + eventStr + "': " + iae); 833 } 834 } else if (eventStr.startsWith(HS20_ICON_STR)) { 835 try { 836 handleIconResult(eventStr, iface); 837 } 838 catch (IllegalArgumentException iae) { 839 Log.e(TAG, "Bad Icon event string: '" + eventStr + "': " + iae); 840 } 841 } 842 else if (eventStr.startsWith(HS20_SUB_REM_STR)) { 843 // Tack on the last connected BSSID so we have some idea what AP the WNM pertains to 844 handleWnmFrame(String.format("%012x %s", 845 mLastConnectBSSIDs.get(iface), eventStr), iface); 846 } else if (eventStr.startsWith(HS20_DEAUTH_STR)) { 847 handleWnmFrame(String.format("%012x %s", 848 mLastConnectBSSIDs.get(iface), eventStr), iface); 849 } else if (eventStr.startsWith(REQUEST_PREFIX_STR)) { 850 handleRequests(eventStr, iface); 851 } else if (eventStr.startsWith(TARGET_BSSID_STR)) { 852 handleTargetBSSIDEvent(eventStr, iface); 853 } else if (eventStr.startsWith(ASSOCIATED_WITH_STR)) { 854 handleAssociatedBSSIDEvent(eventStr, iface); 855 } else if (eventStr.startsWith(AUTH_EVENT_PREFIX_STR) && 856 eventStr.endsWith(AUTH_TIMEOUT_STR)) { 857 sendMessage(iface, AUTHENTICATION_FAILURE_EVENT); 858 } else { 859 if (DBG) Log.w(TAG, "couldn't identify event type - " + eventStr); 860 } 861 eventLogCounter++; 862 return false; 863 } 864 865 String eventName = eventStr.substring(EVENT_PREFIX_LEN_STR); 866 int nameEnd = eventName.indexOf(' '); 867 if (nameEnd != -1) 868 eventName = eventName.substring(0, nameEnd); 869 if (eventName.length() == 0) { 870 if (DBG) Log.i(TAG, "Received wpa_supplicant event with empty event name"); 871 eventLogCounter++; 872 return false; 873 } 874 /* 875 * Map event name into event enum 876 */ 877 int event; 878 if (eventName.equals(CONNECTED_STR)) { 879 event = CONNECTED; 880 long bssid = -1L; 881 int prefix = eventStr.indexOf(ConnectPrefix); 882 if (prefix >= 0) { 883 int suffix = eventStr.indexOf(ConnectSuffix); 884 if (suffix > prefix) { 885 try { 886 bssid = Utils.parseMac( 887 eventStr.substring(prefix + ConnectPrefix.length(), suffix)); 888 } catch (IllegalArgumentException iae) { 889 bssid = -1L; 890 } 891 } 892 } 893 mLastConnectBSSIDs.put(iface, bssid); 894 if (bssid == -1L) { 895 Log.w(TAG, "Failed to parse out BSSID from '" + eventStr + "'"); 896 } 897 } 898 else if (eventName.equals(DISCONNECTED_STR)) 899 event = DISCONNECTED; 900 else if (eventName.equals(STATE_CHANGE_STR)) 901 event = STATE_CHANGE; 902 else if (eventName.equals(SCAN_RESULTS_STR)) 903 event = SCAN_RESULTS; 904 else if (eventName.equals(SCAN_FAILED_STR)) 905 event = SCAN_FAILED; 906 else if (eventName.equals(LINK_SPEED_STR)) 907 event = LINK_SPEED; 908 else if (eventName.equals(TERMINATING_STR)) 909 event = TERMINATING; 910 else if (eventName.equals(DRIVER_STATE_STR)) 911 event = DRIVER_STATE; 912 else if (eventName.equals(EAP_FAILURE_STR)) 913 event = EAP_FAILURE; 914 else if (eventName.equals(ASSOC_REJECT_STR)) 915 event = ASSOC_REJECT; 916 else if (eventName.equals(TEMP_DISABLED_STR)) { 917 event = SSID_TEMP_DISABLE; 918 } else if (eventName.equals(REENABLED_STR)) { 919 event = SSID_REENABLE; 920 } else if (eventName.equals(BSS_ADDED_STR)) { 921 event = BSS_ADDED; 922 } else if (eventName.equals(BSS_REMOVED_STR)) { 923 event = BSS_REMOVED; 924 } else 925 event = UNKNOWN; 926 927 String eventData = eventStr; 928 if (event == DRIVER_STATE || event == LINK_SPEED) 929 eventData = eventData.split(" ")[1]; 930 else if (event == STATE_CHANGE || event == EAP_FAILURE) { 931 int ind = eventStr.indexOf(" "); 932 if (ind != -1) { 933 eventData = eventStr.substring(ind + 1); 934 } 935 } else { 936 int ind = eventStr.indexOf(" - "); 937 if (ind != -1) { 938 eventData = eventStr.substring(ind + 3); 939 } 940 } 941 942 if ((event == SSID_TEMP_DISABLE)||(event == SSID_REENABLE)) { 943 String substr = null; 944 int netId = -1; 945 int ind = eventStr.indexOf(" "); 946 if (ind != -1) { 947 substr = eventStr.substring(ind + 1); 948 } 949 if (substr != null) { 950 String status[] = substr.split(" "); 951 for (String key : status) { 952 if (key.regionMatches(0, "id=", 0, 3)) { 953 int idx = 3; 954 netId = 0; 955 while (idx < key.length()) { 956 char c = key.charAt(idx); 957 if ((c >= 0x30) && (c <= 0x39)) { 958 netId *= 10; 959 netId += c - 0x30; 960 idx++; 961 } else { 962 break; 963 } 964 } 965 } 966 } 967 } 968 sendMessage(iface, (event == SSID_TEMP_DISABLE)? 969 SSID_TEMP_DISABLED:SSID_REENABLED, netId, 0, substr); 970 } else if (event == STATE_CHANGE) { 971 handleSupplicantStateChange(eventData, iface); 972 } else if (event == DRIVER_STATE) { 973 handleDriverEvent(eventData, iface); 974 } else if (event == TERMINATING) { 975 /** 976 * Close the supplicant connection if we see 977 * too many recv errors 978 */ 979 if (eventData.startsWith(WPA_RECV_ERROR_STR)) { 980 if (++mRecvErrors > MAX_RECV_ERRORS) { 981 if (DBG) { 982 Log.d(TAG, "too many recv errors, closing connection"); 983 } 984 } else { 985 eventLogCounter++; 986 return false; 987 } 988 } 989 990 // Notify and exit 991 sendMessage(null, SUP_DISCONNECTION_EVENT, eventLogCounter); 992 return true; 993 } else if (event == EAP_FAILURE) { 994 if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) { 995 sendMessage(iface, AUTHENTICATION_FAILURE_EVENT, eventLogCounter); 996 } 997 } else if (event == ASSOC_REJECT) { 998 Matcher match = mAssocRejectEventPattern.matcher(eventData); 999 String BSSID = ""; 1000 int status = -1; 1001 if (!match.find()) { 1002 if (DBG) Log.d(TAG, "Assoc Reject: Could not parse assoc reject string"); 1003 } else { 1004 int groupNumber = match.groupCount(); 1005 int statusGroupNumber = -1; 1006 if (groupNumber == 2) { 1007 BSSID = match.group(1); 1008 statusGroupNumber = 2; 1009 } else { 1010 // Under such case Supplicant does not report BSSID 1011 BSSID = null; 1012 statusGroupNumber = 1; 1013 } 1014 try { 1015 status = Integer.parseInt(match.group(statusGroupNumber)); 1016 } catch (NumberFormatException e) { 1017 status = -1; 1018 } 1019 } 1020 sendMessage(iface, ASSOCIATION_REJECTION_EVENT, eventLogCounter, status, BSSID); 1021 } else if (event == BSS_ADDED && !VDBG) { 1022 // Ignore that event - it is not handled, and dont log it as it is too verbose 1023 } else if (event == BSS_REMOVED && !VDBG) { 1024 // Ignore that event - it is not handled, and dont log it as it is too verbose 1025 } else { 1026 handleEvent(event, eventData, iface); 1027 } 1028 mRecvErrors = 0; 1029 eventLogCounter++; 1030 return false; 1031 } 1032 handleDriverEvent(String state, String iface)1033 private void handleDriverEvent(String state, String iface) { 1034 if (state == null) { 1035 return; 1036 } 1037 if (state.equals("HANGED")) { 1038 sendMessage(iface, DRIVER_HUNG_EVENT); 1039 } 1040 } 1041 1042 /** 1043 * Handle all supplicant events except STATE-CHANGE 1044 * @param event the event type 1045 * @param remainder the rest of the string following the 1046 * event name and " — " 1047 */ handleEvent(int event, String remainder, String iface)1048 private void handleEvent(int event, String remainder, String iface) { 1049 if (DBG) { 1050 Log.d(TAG, "handleEvent " + Integer.toString(event) + " " + remainder); 1051 } 1052 switch (event) { 1053 case DISCONNECTED: 1054 handleNetworkStateChange(NetworkInfo.DetailedState.DISCONNECTED, remainder, iface); 1055 break; 1056 1057 case CONNECTED: 1058 handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED, remainder, iface); 1059 break; 1060 1061 case SCAN_RESULTS: 1062 sendMessage(iface, SCAN_RESULTS_EVENT); 1063 break; 1064 1065 case SCAN_FAILED: 1066 sendMessage(iface, SCAN_FAILED_EVENT); 1067 break; 1068 1069 case UNKNOWN: 1070 if (DBG) { 1071 Log.w(TAG, "handleEvent unknown: " + Integer.toString(event) + " " + remainder); 1072 } 1073 break; 1074 default: 1075 break; 1076 } 1077 } 1078 handleTargetBSSIDEvent(String eventStr, String iface)1079 private void handleTargetBSSIDEvent(String eventStr, String iface) { 1080 String BSSID = null; 1081 Matcher match = mTargetBSSIDPattern.matcher(eventStr); 1082 if (match.find()) { 1083 BSSID = match.group(1); 1084 } 1085 sendMessage(iface, WifiStateMachine.CMD_TARGET_BSSID, eventLogCounter, 0, BSSID); 1086 } 1087 handleAssociatedBSSIDEvent(String eventStr, String iface)1088 private void handleAssociatedBSSIDEvent(String eventStr, String iface) { 1089 String BSSID = null; 1090 Matcher match = mAssociatedPattern.matcher(eventStr); 1091 if (match.find()) { 1092 BSSID = match.group(1); 1093 } 1094 sendMessage(iface, WifiStateMachine.CMD_ASSOCIATED_BSSID, eventLogCounter, 0, BSSID); 1095 } 1096 1097 handleWpsFailEvent(String dataString, String iface)1098 private void handleWpsFailEvent(String dataString, String iface) { 1099 final Pattern p = Pattern.compile(WPS_FAIL_PATTERN); 1100 Matcher match = p.matcher(dataString); 1101 int reason = 0; 1102 if (match.find()) { 1103 String cfgErrStr = match.group(1); 1104 String reasonStr = match.group(2); 1105 1106 if (reasonStr != null) { 1107 int reasonInt = Integer.parseInt(reasonStr); 1108 switch(reasonInt) { 1109 case REASON_TKIP_ONLY_PROHIBITED: 1110 sendMessage(iface, WPS_FAIL_EVENT, WifiManager.WPS_TKIP_ONLY_PROHIBITED); 1111 return; 1112 case REASON_WEP_PROHIBITED: 1113 sendMessage(iface, WPS_FAIL_EVENT, WifiManager.WPS_WEP_PROHIBITED); 1114 return; 1115 default: 1116 reason = reasonInt; 1117 break; 1118 } 1119 } 1120 if (cfgErrStr != null) { 1121 int cfgErrInt = Integer.parseInt(cfgErrStr); 1122 switch(cfgErrInt) { 1123 case CONFIG_AUTH_FAILURE: 1124 sendMessage(iface, WPS_FAIL_EVENT, WifiManager.WPS_AUTH_FAILURE); 1125 return; 1126 case CONFIG_MULTIPLE_PBC_DETECTED: 1127 sendMessage(iface, WPS_FAIL_EVENT, WifiManager.WPS_OVERLAP_ERROR); 1128 return; 1129 default: 1130 if (reason == 0) reason = cfgErrInt; 1131 break; 1132 } 1133 } 1134 } 1135 //For all other errors, return a generic internal error 1136 sendMessage(iface, WPS_FAIL_EVENT, WifiManager.ERROR, reason); 1137 } 1138 1139 /* <event> status=<err> and the special case of <event> reason=FREQ_CONFLICT */ p2pError(String dataString)1140 private P2pStatus p2pError(String dataString) { 1141 P2pStatus err = P2pStatus.UNKNOWN; 1142 String[] tokens = dataString.split(" "); 1143 if (tokens.length < 2) return err; 1144 String[] nameValue = tokens[1].split("="); 1145 if (nameValue.length != 2) return err; 1146 1147 /* Handle the special case of reason=FREQ+CONFLICT */ 1148 if (nameValue[1].equals("FREQ_CONFLICT")) { 1149 return P2pStatus.NO_COMMON_CHANNEL; 1150 } 1151 try { 1152 err = P2pStatus.valueOf(Integer.parseInt(nameValue[1])); 1153 } catch (NumberFormatException e) { 1154 e.printStackTrace(); 1155 } 1156 return err; 1157 } 1158 getWifiP2pDevice(String dataString)1159 private WifiP2pDevice getWifiP2pDevice(String dataString) { 1160 try { 1161 return new WifiP2pDevice(dataString); 1162 } catch (IllegalArgumentException e) { 1163 return null; 1164 } 1165 } 1166 getWifiP2pGroup(String dataString)1167 private WifiP2pGroup getWifiP2pGroup(String dataString) { 1168 try { 1169 return new WifiP2pGroup(dataString); 1170 } catch (IllegalArgumentException e) { 1171 return null; 1172 } 1173 } 1174 1175 /** 1176 * Handle p2p events 1177 */ handleP2pEvents(String dataString, String iface)1178 private void handleP2pEvents(String dataString, String iface) { 1179 if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) { 1180 WifiP2pDevice device = getWifiP2pDevice(dataString); 1181 if (device != null) sendMessage(iface, P2P_DEVICE_FOUND_EVENT, device); 1182 } else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) { 1183 WifiP2pDevice device = getWifiP2pDevice(dataString); 1184 if (device != null) sendMessage(iface, P2P_DEVICE_LOST_EVENT, device); 1185 } else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) { 1186 sendMessage(iface, P2P_FIND_STOPPED_EVENT); 1187 } else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) { 1188 sendMessage(iface, P2P_GO_NEGOTIATION_REQUEST_EVENT, new WifiP2pConfig(dataString)); 1189 } else if (dataString.startsWith(P2P_GO_NEG_SUCCESS_STR)) { 1190 sendMessage(iface, P2P_GO_NEGOTIATION_SUCCESS_EVENT); 1191 } else if (dataString.startsWith(P2P_GO_NEG_FAILURE_STR)) { 1192 sendMessage(iface, P2P_GO_NEGOTIATION_FAILURE_EVENT, p2pError(dataString)); 1193 } else if (dataString.startsWith(P2P_GROUP_FORMATION_SUCCESS_STR)) { 1194 sendMessage(iface, P2P_GROUP_FORMATION_SUCCESS_EVENT); 1195 } else if (dataString.startsWith(P2P_GROUP_FORMATION_FAILURE_STR)) { 1196 sendMessage(iface, P2P_GROUP_FORMATION_FAILURE_EVENT, p2pError(dataString)); 1197 } else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) { 1198 WifiP2pGroup group = getWifiP2pGroup(dataString); 1199 if (group != null) sendMessage(iface, P2P_GROUP_STARTED_EVENT, group); 1200 } else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) { 1201 WifiP2pGroup group = getWifiP2pGroup(dataString); 1202 if (group != null) sendMessage(iface, P2P_GROUP_REMOVED_EVENT, group); 1203 } else if (dataString.startsWith(P2P_INVITATION_RECEIVED_STR)) { 1204 sendMessage(iface, P2P_INVITATION_RECEIVED_EVENT, new WifiP2pGroup(dataString)); 1205 } else if (dataString.startsWith(P2P_INVITATION_RESULT_STR)) { 1206 sendMessage(iface, P2P_INVITATION_RESULT_EVENT, p2pError(dataString)); 1207 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_REQ_STR)) { 1208 sendMessage(iface, P2P_PROV_DISC_PBC_REQ_EVENT, new WifiP2pProvDiscEvent(dataString)); 1209 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_RSP_STR)) { 1210 sendMessage(iface, P2P_PROV_DISC_PBC_RSP_EVENT, new WifiP2pProvDiscEvent(dataString)); 1211 } else if (dataString.startsWith(P2P_PROV_DISC_ENTER_PIN_STR)) { 1212 sendMessage(iface, P2P_PROV_DISC_ENTER_PIN_EVENT, new WifiP2pProvDiscEvent(dataString)); 1213 } else if (dataString.startsWith(P2P_PROV_DISC_SHOW_PIN_STR)) { 1214 sendMessage(iface, P2P_PROV_DISC_SHOW_PIN_EVENT, new WifiP2pProvDiscEvent(dataString)); 1215 } else if (dataString.startsWith(P2P_PROV_DISC_FAILURE_STR)) { 1216 sendMessage(iface, P2P_PROV_DISC_FAILURE_EVENT); 1217 } else if (dataString.startsWith(P2P_SERV_DISC_RESP_STR)) { 1218 List<WifiP2pServiceResponse> list = WifiP2pServiceResponse.newInstance(dataString); 1219 if (list != null) { 1220 sendMessage(iface, P2P_SERV_DISC_RESP_EVENT, list); 1221 } else { 1222 Log.e(TAG, "Null service resp " + dataString); 1223 } 1224 } 1225 } 1226 1227 /** 1228 * Handle hostap events 1229 */ handleHostApEvents(String dataString, String iface)1230 private void handleHostApEvents(String dataString, String iface) { 1231 String[] tokens = dataString.split(" "); 1232 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1233 if (tokens[0].equals(AP_STA_CONNECTED_STR)) { 1234 sendMessage(iface, AP_STA_CONNECTED_EVENT, new WifiP2pDevice(dataString)); 1235 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 1236 } else if (tokens[0].equals(AP_STA_DISCONNECTED_STR)) { 1237 sendMessage(iface, AP_STA_DISCONNECTED_EVENT, new WifiP2pDevice(dataString)); 1238 } 1239 } 1240 1241 private static final String ADDR_STRING = "addr="; 1242 private static final String RESULT_STRING = "result="; 1243 1244 // ANQP-QUERY-DONE addr=18:cf:5e:26:a4:88 result=SUCCESS 1245 handleAnqpResult(String eventStr, String iface)1246 private void handleAnqpResult(String eventStr, String iface) { 1247 int addrPos = eventStr.indexOf(ADDR_STRING); 1248 int resPos = eventStr.indexOf(RESULT_STRING); 1249 if (addrPos < 0 || resPos < 0) { 1250 throw new IllegalArgumentException("Unexpected ANQP result notification"); 1251 } 1252 int eoaddr = eventStr.indexOf(' ', addrPos + ADDR_STRING.length()); 1253 if (eoaddr < 0) { 1254 eoaddr = eventStr.length(); 1255 } 1256 int eoresult = eventStr.indexOf(' ', resPos + RESULT_STRING.length()); 1257 if (eoresult < 0) { 1258 eoresult = eventStr.length(); 1259 } 1260 1261 try { 1262 long bssid = Utils.parseMac(eventStr.substring(addrPos + ADDR_STRING.length(), eoaddr)); 1263 int result = eventStr.substring( 1264 resPos + RESULT_STRING.length(), eoresult).equalsIgnoreCase("success") ? 1 : 0; 1265 1266 sendMessage(iface, ANQP_DONE_EVENT, result, 0, bssid); 1267 } 1268 catch (IllegalArgumentException iae) { 1269 Log.e(TAG, "Bad MAC address in ANQP response: " + iae.getMessage()); 1270 } 1271 } 1272 handleIconResult(String eventStr, String iface)1273 private void handleIconResult(String eventStr, String iface) { 1274 // RX-HS20-ICON c0:c5:20:27:d1:e8 <file> <size> 1275 String[] segments = eventStr.split(" "); 1276 if (segments.length != 4) { 1277 throw new IllegalArgumentException("Incorrect number of segments"); 1278 } 1279 1280 try { 1281 String bssid = segments[1]; 1282 String fileName = segments[2]; 1283 int size = Integer.parseInt(segments[3]); 1284 sendMessage(iface, RX_HS20_ANQP_ICON_EVENT, 1285 new IconEvent(Utils.parseMac(bssid), fileName, size)); 1286 } 1287 catch (NumberFormatException nfe) { 1288 throw new IllegalArgumentException("Bad numeral"); 1289 } 1290 } 1291 handleWnmFrame(String eventStr, String iface)1292 private void handleWnmFrame(String eventStr, String iface) { 1293 try { 1294 WnmData wnmData = WnmData.buildWnmData(eventStr); 1295 sendMessage(iface, HS20_REMEDIATION_EVENT, wnmData); 1296 } catch (IOException | NumberFormatException e) { 1297 Log.w(TAG, "Bad WNM event: '" + eventStr + "'"); 1298 } 1299 } 1300 1301 /** 1302 * Handle Supplicant Requests 1303 */ handleRequests(String dataString, String iface)1304 private void handleRequests(String dataString, String iface) { 1305 String SSID = null; 1306 int reason = -2; 1307 String requestName = dataString.substring(REQUEST_PREFIX_LEN_STR); 1308 if (TextUtils.isEmpty(requestName)) { 1309 return; 1310 } 1311 if (requestName.startsWith(IDENTITY_STR)) { 1312 Matcher match = mRequestIdentityPattern.matcher(requestName); 1313 if (match.find()) { 1314 SSID = match.group(2); 1315 try { 1316 reason = Integer.parseInt(match.group(1)); 1317 } catch (NumberFormatException e) { 1318 reason = -1; 1319 } 1320 } else { 1321 Log.e(TAG, "didn't find SSID " + requestName); 1322 } 1323 sendMessage(iface, SUP_REQUEST_IDENTITY, eventLogCounter, reason, SSID); 1324 } else if (requestName.startsWith(SIM_STR)) { 1325 Matcher matchGsm = mRequestGsmAuthPattern.matcher(requestName); 1326 Matcher matchUmts = mRequestUmtsAuthPattern.matcher(requestName); 1327 WifiStateMachine.SimAuthRequestData data = 1328 new WifiStateMachine.SimAuthRequestData(); 1329 if (matchGsm.find()) { 1330 data.networkId = Integer.parseInt(matchGsm.group(1)); 1331 data.protocol = WifiEnterpriseConfig.Eap.SIM; 1332 data.ssid = matchGsm.group(4); 1333 data.data = matchGsm.group(2).split(":"); 1334 sendMessage(iface, SUP_REQUEST_SIM_AUTH, data); 1335 } else if (matchUmts.find()) { 1336 data.networkId = Integer.parseInt(matchUmts.group(1)); 1337 data.protocol = WifiEnterpriseConfig.Eap.AKA; 1338 data.ssid = matchUmts.group(4); 1339 data.data = new String[2]; 1340 data.data[0] = matchUmts.group(2); 1341 data.data[1] = matchUmts.group(3); 1342 sendMessage(iface, SUP_REQUEST_SIM_AUTH, data); 1343 } else { 1344 Log.e(TAG, "couldn't parse SIM auth request - " + requestName); 1345 } 1346 1347 } else { 1348 if (DBG) Log.w(TAG, "couldn't identify request type - " + dataString); 1349 } 1350 } 1351 1352 /** 1353 * Handle the supplicant STATE-CHANGE event 1354 * @param dataString New supplicant state string in the format: 1355 * id=network-id state=new-state 1356 */ handleSupplicantStateChange(String dataString, String iface)1357 private void handleSupplicantStateChange(String dataString, String iface) { 1358 WifiSsid wifiSsid = null; 1359 int index = dataString.lastIndexOf("SSID="); 1360 if (index != -1) { 1361 wifiSsid = WifiSsid.createFromAsciiEncoded( 1362 dataString.substring(index + 5)); 1363 } 1364 String[] dataTokens = dataString.split(" "); 1365 1366 String BSSID = null; 1367 int networkId = -1; 1368 int newState = -1; 1369 for (String token : dataTokens) { 1370 String[] nameValue = token.split("="); 1371 if (nameValue.length != 2) { 1372 continue; 1373 } 1374 1375 if (nameValue[0].equals("BSSID")) { 1376 BSSID = nameValue[1]; 1377 continue; 1378 } 1379 1380 int value; 1381 try { 1382 value = Integer.parseInt(nameValue[1]); 1383 } catch (NumberFormatException e) { 1384 continue; 1385 } 1386 1387 if (nameValue[0].equals("id")) { 1388 networkId = value; 1389 } else if (nameValue[0].equals("state")) { 1390 newState = value; 1391 } 1392 } 1393 1394 if (newState == -1) return; 1395 1396 SupplicantState newSupplicantState = SupplicantState.INVALID; 1397 for (SupplicantState state : SupplicantState.values()) { 1398 if (state.ordinal() == newState) { 1399 newSupplicantState = state; 1400 break; 1401 } 1402 } 1403 if (newSupplicantState == SupplicantState.INVALID) { 1404 Log.w(TAG, "Invalid supplicant state: " + newState); 1405 } 1406 sendMessage(iface, SUPPLICANT_STATE_CHANGE_EVENT, eventLogCounter, 0, 1407 new StateChangeResult(networkId, wifiSsid, BSSID, newSupplicantState)); 1408 } 1409 handleNetworkStateChange(NetworkInfo.DetailedState newState, String data, String iface)1410 private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data, 1411 String iface) { 1412 String BSSID = null; 1413 int networkId = -1; 1414 int reason = 0; 1415 int ind = -1; 1416 int local = 0; 1417 Matcher match; 1418 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1419 match = mConnectedEventPattern.matcher(data); 1420 if (!match.find()) { 1421 if (DBG) Log.d(TAG, "handleNetworkStateChange: Couldnt find BSSID in event string"); 1422 } else { 1423 BSSID = match.group(1); 1424 try { 1425 networkId = Integer.parseInt(match.group(2)); 1426 } catch (NumberFormatException e) { 1427 networkId = -1; 1428 } 1429 } 1430 sendMessage(iface, NETWORK_CONNECTION_EVENT, networkId, reason, BSSID); 1431 } else if (newState == NetworkInfo.DetailedState.DISCONNECTED) { 1432 match = mDisconnectedEventPattern.matcher(data); 1433 if (!match.find()) { 1434 if (DBG) Log.d(TAG, "handleNetworkStateChange: Could not parse disconnect string"); 1435 } else { 1436 BSSID = match.group(1); 1437 try { 1438 reason = Integer.parseInt(match.group(2)); 1439 } catch (NumberFormatException e) { 1440 reason = -1; 1441 } 1442 try { 1443 local = Integer.parseInt(match.group(3)); 1444 } catch (NumberFormatException e) { 1445 local = -1; 1446 } 1447 } 1448 if (DBG) Log.d(TAG, "WifiMonitor notify network disconnect: " 1449 + BSSID 1450 + " reason=" + Integer.toString(reason)); 1451 sendMessage(iface, NETWORK_DISCONNECTION_EVENT, local, reason, BSSID); 1452 } 1453 } 1454 } 1455