com_android_server_wifi_WifiNative.cpp revision 965101c0a9af6e9194a04b77c22b0e7fcad481a8
1/* 2 * Copyright 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#define LOG_TAG "wifi" 18 19#include "jni.h" 20#include <ScopedUtfChars.h> 21#include <utils/misc.h> 22#include <android_runtime/AndroidRuntime.h> 23#include <utils/Log.h> 24#include <utils/String16.h> 25#include <ctype.h> 26#include <sys/socket.h> 27#include <linux/if.h> 28 29#include "wifi.h" 30#include "wifi_hal.h" 31#include "jni_helper.h" 32#include "rtt.h" 33#include "wifi_hal_stub.h" 34#define REPLY_BUF_SIZE 4096 // wpa_supplicant's maximum size. 35#define EVENT_BUF_SIZE 2048 36 37namespace android { 38 39static jint DBG = false; 40 41//Please put all HAL function call here and call from the function table instead of directly call 42static wifi_hal_fn hal_fn; 43int init_wifi_hal_func_table(wifi_hal_fn *hal_fn) { 44 if (hal_fn == NULL) { 45 return -1; 46 } 47 hal_fn->wifi_initialize = wifi_initialize_stub; 48 hal_fn->wifi_cleanup = wifi_cleanup_stub; 49 hal_fn->wifi_event_loop = wifi_event_loop_stub; 50 hal_fn->wifi_get_error_info = wifi_get_error_info_stub; 51 hal_fn->wifi_get_supported_feature_set = wifi_get_supported_feature_set_stub; 52 hal_fn->wifi_get_concurrency_matrix = wifi_get_concurrency_matrix_stub; 53 hal_fn->wifi_set_scanning_mac_oui = wifi_set_scanning_mac_oui_stub; 54 hal_fn->wifi_get_supported_channels = wifi_get_supported_channels_stub; 55 hal_fn->wifi_is_epr_supported = wifi_is_epr_supported_stub; 56 hal_fn->wifi_get_ifaces = wifi_get_ifaces_stub; 57 hal_fn->wifi_get_iface_name = wifi_get_iface_name_stub; 58 hal_fn->wifi_reset_iface_event_handler = wifi_reset_iface_event_handler_stub; 59 hal_fn->wifi_start_gscan = wifi_start_gscan_stub; 60 hal_fn->wifi_stop_gscan = wifi_stop_gscan_stub; 61 hal_fn->wifi_get_cached_gscan_results = wifi_get_cached_gscan_results_stub; 62 hal_fn->wifi_set_bssid_hotlist = wifi_set_bssid_hotlist_stub; 63 hal_fn->wifi_reset_bssid_hotlist = wifi_reset_bssid_hotlist_stub; 64 hal_fn->wifi_set_significant_change_handler = wifi_set_significant_change_handler_stub; 65 hal_fn->wifi_reset_significant_change_handler = wifi_reset_significant_change_handler_stub; 66 hal_fn->wifi_get_gscan_capabilities = wifi_get_gscan_capabilities_stub; 67 hal_fn->wifi_set_link_stats = wifi_set_link_stats_stub; 68 hal_fn->wifi_get_link_stats = wifi_get_link_stats_stub; 69 hal_fn->wifi_clear_link_stats = wifi_clear_link_stats_stub; 70 hal_fn->wifi_get_valid_channels = wifi_get_valid_channels_stub; 71 hal_fn->wifi_rtt_range_request = wifi_rtt_range_request_stub; 72 hal_fn->wifi_rtt_range_cancel = wifi_rtt_range_cancel_stub; 73 hal_fn->wifi_get_rtt_capabilities = wifi_get_rtt_capabilities_stub; 74 hal_fn->wifi_set_nodfs_flag = wifi_set_nodfs_flag_stub; 75 hal_fn->wifi_start_logging = wifi_start_logging_stub; 76 hal_fn->wifi_set_epno_list = wifi_set_epno_list_stub; 77 hal_fn->wifi_set_country_code = wifi_set_country_code_stub; 78 return 0; 79} 80 81static bool doCommand(JNIEnv* env, jstring javaCommand, 82 char* reply, size_t reply_len) { 83 ScopedUtfChars command(env, javaCommand); 84 if (command.c_str() == NULL) { 85 return false; // ScopedUtfChars already threw on error. 86 } 87 88 if (DBG) { 89 ALOGD("doCommand: %s", command.c_str()); 90 } 91 92 --reply_len; // Ensure we have room to add NUL termination. 93 if (::wifi_command(command.c_str(), reply, &reply_len) != 0) { 94 return false; 95 } 96 97 // Strip off trailing newline. 98 if (reply_len > 0 && reply[reply_len-1] == '\n') { 99 reply[reply_len-1] = '\0'; 100 } else { 101 reply[reply_len] = '\0'; 102 } 103 return true; 104} 105 106static jint doIntCommand(JNIEnv* env, jstring javaCommand) { 107 char reply[REPLY_BUF_SIZE]; 108 if (!doCommand(env, javaCommand, reply, sizeof(reply))) { 109 return -1; 110 } 111 return static_cast<jint>(atoi(reply)); 112} 113 114static jboolean doBooleanCommand(JNIEnv* env, jstring javaCommand) { 115 char reply[REPLY_BUF_SIZE]; 116 if (!doCommand(env, javaCommand, reply, sizeof(reply))) { 117 return JNI_FALSE; 118 } 119 return (strcmp(reply, "OK") == 0); 120} 121 122// Send a command to the supplicant, and return the reply as a String. 123static jstring doStringCommand(JNIEnv* env, jstring javaCommand) { 124 char reply[REPLY_BUF_SIZE]; 125 if (!doCommand(env, javaCommand, reply, sizeof(reply))) { 126 return NULL; 127 } 128 return env->NewStringUTF(reply); 129} 130 131static jboolean android_net_wifi_isDriverLoaded(JNIEnv* env, jobject) 132{ 133 return (::is_wifi_driver_loaded() == 1); 134} 135 136static jboolean android_net_wifi_loadDriver(JNIEnv* env, jobject) 137{ 138 return (::wifi_load_driver() == 0); 139} 140 141static jboolean android_net_wifi_unloadDriver(JNIEnv* env, jobject) 142{ 143 return (::wifi_unload_driver() == 0); 144} 145 146static jboolean android_net_wifi_startSupplicant(JNIEnv* env, jobject, jboolean p2pSupported) 147{ 148 return (::wifi_start_supplicant(p2pSupported) == 0); 149} 150 151static jboolean android_net_wifi_killSupplicant(JNIEnv* env, jobject, jboolean p2pSupported) 152{ 153 return (::wifi_stop_supplicant(p2pSupported) == 0); 154} 155 156static jboolean android_net_wifi_connectToSupplicant(JNIEnv* env, jobject) 157{ 158 return (::wifi_connect_to_supplicant() == 0); 159} 160 161static void android_net_wifi_closeSupplicantConnection(JNIEnv* env, jobject) 162{ 163 ::wifi_close_supplicant_connection(); 164} 165 166static jstring android_net_wifi_waitForEvent(JNIEnv* env, jobject) 167{ 168 char buf[EVENT_BUF_SIZE]; 169 int nread = ::wifi_wait_for_event(buf, sizeof buf); 170 if (nread > 0) { 171 return env->NewStringUTF(buf); 172 } else { 173 return NULL; 174 } 175} 176 177static jboolean android_net_wifi_doBooleanCommand(JNIEnv* env, jobject, jstring javaCommand) { 178 return doBooleanCommand(env, javaCommand); 179} 180 181static jint android_net_wifi_doIntCommand(JNIEnv* env, jobject, jstring javaCommand) { 182 return doIntCommand(env, javaCommand); 183} 184 185static jstring android_net_wifi_doStringCommand(JNIEnv* env, jobject, jstring javaCommand) { 186 return doStringCommand(env,javaCommand); 187} 188 189/* wifi_hal <==> WifiNative bridge */ 190 191static jclass mCls; /* saved WifiNative object */ 192static JavaVM *mVM; /* saved JVM pointer */ 193 194static const char *WifiHandleVarName = "sWifiHalHandle"; 195static const char *WifiIfaceHandleVarName = "sWifiIfaceHandles"; 196static jmethodID OnScanResultsMethodID; 197 198static JNIEnv *getEnv() { 199 JNIEnv *env = NULL; 200 mVM->AttachCurrentThread(&env, NULL); 201 return env; 202} 203 204static wifi_handle getWifiHandle(JNIEnv *env, jclass cls) { 205 return (wifi_handle) getStaticLongField(env, cls, WifiHandleVarName); 206} 207 208static wifi_interface_handle getIfaceHandle(JNIEnv *env, jclass cls, jint index) { 209 return (wifi_interface_handle) getStaticLongArrayField(env, cls, WifiIfaceHandleVarName, index); 210} 211 212static jobject createScanResult(JNIEnv *env, wifi_scan_result *result) { 213 214 // ALOGD("creating scan result"); 215 216 jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); 217 if (scanResult == NULL) { 218 ALOGE("Error in creating scan result"); 219 return NULL; 220 } 221 222 ALOGE("setting SSID to %s", result->ssid); 223 //jstring jssid = env->NewStringUTF(result->ssid); 224 setStringField(env, scanResult, "SSID", result->ssid); 225 226 char bssid[32]; 227 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result->bssid[0], result->bssid[1], 228 result->bssid[2], result->bssid[3], result->bssid[4], result->bssid[5]); 229 //jstring jbssid = env->NewStringUTF(bssid); 230 231 setStringField(env, scanResult, "BSSID", bssid); 232 233 setIntField(env, scanResult, "level", result->rssi); 234 setIntField(env, scanResult, "frequency", result->channel); 235 setLongField(env, scanResult, "timestamp", result->ts); 236 237 return scanResult; 238} 239 240int set_iface_flags(const char *ifname, int dev_up) { 241 struct ifreq ifr; 242 int ret; 243 int sock = socket(PF_INET, SOCK_DGRAM, 0); 244 if (sock < 0) { 245 ALOGD("Bad socket: %d\n", sock); 246 return -errno; 247 } 248 249 //ALOGD("setting interface %s flags (%s)\n", ifname, dev_up ? "UP" : "DOWN"); 250 251 memset(&ifr, 0, sizeof(ifr)); 252 strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); 253 254 //ALOGD("reading old value\n"); 255 256 if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) { 257 ret = errno ? -errno : -999; 258 ALOGD("Could not read interface %s flags: %d\n", ifname, errno); 259 close(sock); 260 return ret; 261 } else { 262 //ALOGD("writing new value\n"); 263 } 264 265 if (dev_up) { 266 if (ifr.ifr_flags & IFF_UP) { 267 ALOGD("interface %s is already up\n", ifname); 268 close(sock); 269 return 0; 270 } 271 ifr.ifr_flags |= IFF_UP; 272 } else { 273 if (!(ifr.ifr_flags & IFF_UP)) { 274 ALOGD("interface %s is already down\n", ifname); 275 close(sock); 276 return 0; 277 } 278 ifr.ifr_flags &= ~IFF_UP; 279 } 280 281 if (ioctl(sock, SIOCSIFFLAGS, &ifr) != 0) { 282 ALOGD("Could not set interface %s flags \n", ifname); 283 close(sock); 284 return ret; 285 } else { 286 ALOGD("set interface %s flags (%s)\n", ifname, dev_up ? "UP" : "DOWN"); 287 } 288 close(sock); 289 return 0; 290} 291 292static jboolean android_net_wifi_toggle_interface(JNIEnv* env, jclass cls, int toggle) { 293 return(set_iface_flags("wlan0", toggle) == 0); 294} 295 296static jboolean android_net_wifi_startHal(JNIEnv* env, jclass cls) { 297 wifi_handle halHandle = getWifiHandle(env, cls); 298 if (halHandle == NULL) { 299 300 if(init_wifi_hal_func_table(&hal_fn) != 0 ) { 301 ALOGD("Can not initialize the basic function pointer table"); 302 return false; 303 } 304 305 wifi_error res = init_wifi_vendor_hal_func_table(&hal_fn); 306 if (res != WIFI_SUCCESS) { 307 ALOGD("Can not initialize the vendor function pointer table"); 308 return false; 309 } 310 311 int ret = set_iface_flags("wlan0", 1); 312 if(ret != 0) { 313 return false; 314 } 315 316 res = hal_fn.wifi_initialize(&halHandle); 317 if (res == WIFI_SUCCESS) { 318 setStaticLongField(env, cls, WifiHandleVarName, (jlong)halHandle); 319 ALOGD("Did set static halHandle = %p", halHandle); 320 } 321 env->GetJavaVM(&mVM); 322 mCls = (jclass) env->NewGlobalRef(cls); 323 ALOGD("halHandle = %p, mVM = %p, mCls = %p", halHandle, mVM, mCls); 324 return res == WIFI_SUCCESS; 325 } else { 326 return (set_iface_flags("wlan0", 1) == 0); 327 } 328} 329 330void android_net_wifi_hal_cleaned_up_handler(wifi_handle handle) { 331 ALOGD("In wifi cleaned up handler"); 332 333 JNIEnv * env = getEnv(); 334 setStaticLongField(env, mCls, WifiHandleVarName, 0); 335 env->DeleteGlobalRef(mCls); 336 mCls = NULL; 337 mVM = NULL; 338} 339 340static void android_net_wifi_stopHal(JNIEnv* env, jclass cls) { 341 ALOGD("In wifi stop Hal"); 342 343 wifi_handle halHandle = getWifiHandle(env, cls); 344 hal_fn.wifi_cleanup(halHandle, android_net_wifi_hal_cleaned_up_handler); 345 set_iface_flags("wlan0", 0); 346} 347 348static void android_net_wifi_waitForHalEvents(JNIEnv* env, jclass cls) { 349 350 ALOGD("waitForHalEvents called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 351 352 wifi_handle halHandle = getWifiHandle(env, cls); 353 hal_fn.wifi_event_loop(halHandle); 354} 355 356static int android_net_wifi_getInterfaces(JNIEnv *env, jclass cls) { 357 int n = 0; 358 wifi_handle halHandle = getWifiHandle(env, cls); 359 wifi_interface_handle *ifaceHandles = NULL; 360 int result = hal_fn.wifi_get_ifaces(halHandle, &n, &ifaceHandles); 361 if (result < 0) { 362 return result; 363 } 364 365 if (n < 0) { 366 THROW(env, "android_net_wifi_getInterfaces no interfaces"); 367 return 0; 368 } 369 370 if (ifaceHandles == NULL) { 371 THROW(env, "android_net_wifi_getInterfaces null interface array"); 372 return 0; 373 } 374 375 if (n > 8) { 376 THROW(env, "Too many interfaces"); 377 return 0; 378 } 379 380 jlongArray array = (env)->NewLongArray(n); 381 if (array == NULL) { 382 THROW(env, "Error in accessing array"); 383 return 0; 384 } 385 386 jlong elems[8]; 387 for (int i = 0; i < n; i++) { 388 elems[i] = reinterpret_cast<jlong>(ifaceHandles[i]); 389 } 390 env->SetLongArrayRegion(array, 0, n, elems); 391 setStaticLongArrayField(env, cls, WifiIfaceHandleVarName, array); 392 393 return (result < 0) ? result : n; 394} 395 396static jstring android_net_wifi_getInterfaceName(JNIEnv *env, jclass cls, jint i) { 397 char buf[EVENT_BUF_SIZE]; 398 399 jlong value = getStaticLongArrayField(env, cls, WifiIfaceHandleVarName, i); 400 wifi_interface_handle handle = (wifi_interface_handle) value; 401 int result = hal_fn.wifi_get_iface_name(handle, buf, sizeof(buf)); 402 if (result < 0) { 403 return NULL; 404 } else { 405 return env->NewStringUTF(buf); 406 } 407} 408 409 410static void onScanResultsAvailable(wifi_request_id id, unsigned num_results) { 411 412 JNIEnv *env = NULL; 413 mVM->AttachCurrentThread(&env, NULL); 414 415 ALOGD("onScanResultsAvailable called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 416 417 reportEvent(env, mCls, "onScanResultsAvailable", "(I)V", id); 418} 419 420static void onScanEvent(wifi_scan_event event, unsigned status) { 421 JNIEnv *env = NULL; 422 mVM->AttachCurrentThread(&env, NULL); 423 424 ALOGD("onScanStatus called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 425 426 reportEvent(env, mCls, "onScanStatus", "(I)V", event); 427} 428 429static void onFullScanResult(wifi_request_id id, wifi_scan_result *result) { 430 431 JNIEnv *env = NULL; 432 mVM->AttachCurrentThread(&env, NULL); 433 434 ALOGD("onFullScanResult called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 435 436 jobject scanResult = createScanResult(env, result); 437 438 ALOGD("Creating a byte array of length %d", result->ie_length); 439 440 jbyteArray elements = env->NewByteArray(result->ie_length); 441 if (elements == NULL) { 442 ALOGE("Error in allocating array"); 443 return; 444 } 445 446 ALOGE("Setting byte array"); 447 448 jbyte *bytes = (jbyte *)&(result->ie_data[0]); 449 env->SetByteArrayRegion(elements, 0, result->ie_length, bytes); 450 451 ALOGE("Returning result"); 452 453 reportEvent(env, mCls, "onFullScanResult", "(ILandroid/net/wifi/ScanResult;[B)V", id, 454 scanResult, elements); 455 456 env->DeleteLocalRef(scanResult); 457 env->DeleteLocalRef(elements); 458} 459 460static jboolean android_net_wifi_startScan( 461 JNIEnv *env, jclass cls, jint iface, jint id, jobject settings) { 462 463 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 464 ALOGD("starting scan on interface[%d] = %p", iface, handle); 465 466 wifi_scan_cmd_params params; 467 memset(¶ms, 0, sizeof(params)); 468 469 params.base_period = getIntField(env, settings, "base_period_ms"); 470 params.max_ap_per_scan = getIntField(env, settings, "max_ap_per_scan"); 471 params.report_threshold_percent = getIntField(env, settings, "report_threshold_percent"); 472 params.report_threshold_num_scans = getIntField(env, settings, "report_threshold_num_scans"); 473 474 ALOGD("Initialized common fields %d, %d, %d, %d", params.base_period, params.max_ap_per_scan, 475 params.report_threshold_percent, params.report_threshold_num_scans); 476 477 const char *bucket_array_type = "[Lcom/android/server/wifi/WifiNative$BucketSettings;"; 478 const char *channel_array_type = "[Lcom/android/server/wifi/WifiNative$ChannelSettings;"; 479 480 jobjectArray buckets = (jobjectArray)getObjectField(env, settings, "buckets", bucket_array_type); 481 params.num_buckets = getIntField(env, settings, "num_buckets"); 482 483 ALOGD("Initialized num_buckets to %d", params.num_buckets); 484 485 for (int i = 0; i < params.num_buckets; i++) { 486 jobject bucket = getObjectArrayField(env, settings, "buckets", bucket_array_type, i); 487 488 params.buckets[i].bucket = getIntField(env, bucket, "bucket"); 489 params.buckets[i].band = (wifi_band) getIntField(env, bucket, "band"); 490 params.buckets[i].period = getIntField(env, bucket, "period_ms"); 491 492 ALOGD("Initialized common bucket fields %d:%d:%d", params.buckets[i].bucket, 493 params.buckets[i].band, params.buckets[i].period); 494 495 int report_events = getIntField(env, bucket, "report_events"); 496 params.buckets[i].report_events = report_events; 497 498 ALOGD("Initialized report events to %d", params.buckets[i].report_events); 499 500 jobjectArray channels = (jobjectArray)getObjectField( 501 env, bucket, "channels", channel_array_type); 502 503 params.buckets[i].num_channels = getIntField(env, bucket, "num_channels"); 504 ALOGD("Initialized num_channels to %d", params.buckets[i].num_channels); 505 506 for (int j = 0; j < params.buckets[i].num_channels; j++) { 507 jobject channel = getObjectArrayField(env, bucket, "channels", channel_array_type, j); 508 509 params.buckets[i].channels[j].channel = getIntField(env, channel, "frequency"); 510 params.buckets[i].channels[j].dwellTimeMs = getIntField(env, channel, "dwell_time_ms"); 511 512 bool passive = getBoolField(env, channel, "passive"); 513 params.buckets[i].channels[j].passive = (passive ? 1 : 0); 514 515 ALOGD("Initialized channel %d", params.buckets[i].channels[j].channel); 516 } 517 } 518 519 ALOGD("Initialized all fields"); 520 521 wifi_scan_result_handler handler; 522 memset(&handler, 0, sizeof(handler)); 523 handler.on_scan_results_available = &onScanResultsAvailable; 524 handler.on_full_scan_result = &onFullScanResult; 525 handler.on_scan_event = &onScanEvent; 526 527 return hal_fn.wifi_start_gscan(id, handle, params, handler) == WIFI_SUCCESS; 528} 529 530static jboolean android_net_wifi_stopScan(JNIEnv *env, jclass cls, jint iface, jint id) { 531 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 532 ALOGD("stopping scan on interface[%d] = %p", iface, handle); 533 534 return hal_fn.wifi_stop_gscan(id, handle) == WIFI_SUCCESS; 535} 536 537static int compare_scan_result_timestamp(const void *v1, const void *v2) { 538 const wifi_scan_result *result1 = static_cast<const wifi_scan_result *>(v1); 539 const wifi_scan_result *result2 = static_cast<const wifi_scan_result *>(v2); 540 return result1->ts - result2->ts; 541} 542 543static jobject android_net_wifi_getScanResults( 544 JNIEnv *env, jclass cls, jint iface, jboolean flush) { 545 546 wifi_cached_scan_results scan_data[64]; 547 int num_scan_data = 64; 548 549 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 550 ALOGD("getting scan results on interface[%d] = %p", iface, handle); 551 552 byte b = flush ? 0 : 0xFF; 553 int result = hal_fn.wifi_get_cached_gscan_results(handle, b, num_scan_data, scan_data, &num_scan_data); 554 if (result == WIFI_SUCCESS) { 555 jobjectArray scanData = createObjectArray(env, 556 "android/net/wifi/WifiScanner$ScanData", num_scan_data); 557 if (scanData == NULL) { 558 ALOGE("Error in allocating array of scanData"); 559 return NULL; 560 } 561 562 for (int i = 0; i < num_scan_data; i++) { 563 564 jobject data = createObject(env, "android/net/wifi/WifiScanner$ScanData"); 565 if (data == NULL) { 566 ALOGE("Error in allocating scanData"); 567 return NULL; 568 } 569 570 setIntField(env, data, "mId", scan_data[i].scan_id); 571 setIntField(env, data, "mFlags", scan_data[i].flags); 572 573 /* sort all scan results by timestamp */ 574 qsort(scan_data[i].results, scan_data[i].num_results, 575 sizeof(wifi_scan_result), compare_scan_result_timestamp); 576 577 jobjectArray scanResults = createObjectArray(env, 578 "android/net/wifi/ScanResult", scan_data[i].num_results); 579 if (scanResults == NULL) { 580 ALOGE("Error in allocating scanResult array"); 581 return NULL; 582 } 583 584 wifi_scan_result *results = scan_data[i].results; 585 for (int j = 0; j < scan_data[i].num_results; j++) { 586 587 jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); 588 if (scanResult == NULL) { 589 ALOGE("Error in creating scan result"); 590 return NULL; 591 } 592 593 setStringField(env, scanResult, "SSID", results[j].ssid); 594 595 char bssid[32]; 596 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", results[j].bssid[0], 597 results[j].bssid[1], results[j].bssid[2], results[j].bssid[3], 598 results[j].bssid[4], results[j].bssid[5]); 599 600 setStringField(env, scanResult, "BSSID", bssid); 601 602 setIntField(env, scanResult, "level", results[j].rssi); 603 setIntField(env, scanResult, "frequency", results[j].channel); 604 setLongField(env, scanResult, "timestamp", results[j].ts); 605 606 env->SetObjectArrayElement(scanResults, j, scanResult); 607 env->DeleteLocalRef(scanResult); 608 } 609 610 setObjectField(env, data, "mResults", "[Landroid/net/wifi/ScanResult;", scanResults); 611 env->SetObjectArrayElement(scanData, i, data); 612 } 613 614 return scanData; 615 } else { 616 return NULL; 617 } 618} 619 620 621static jboolean android_net_wifi_getScanCapabilities( 622 JNIEnv *env, jclass cls, jint iface, jobject capabilities) { 623 624 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 625 ALOGD("getting scan capabilities on interface[%d] = %p", iface, handle); 626 627 wifi_gscan_capabilities c; 628 memset(&c, 0, sizeof(c)); 629 int result = hal_fn.wifi_get_gscan_capabilities(handle, &c); 630 if (result != WIFI_SUCCESS) { 631 ALOGD("failed to get capabilities : %d", result); 632 return JNI_FALSE; 633 } 634 635 setIntField(env, capabilities, "max_scan_cache_size", c.max_scan_cache_size); 636 setIntField(env, capabilities, "max_scan_buckets", c.max_scan_buckets); 637 setIntField(env, capabilities, "max_ap_cache_per_scan", c.max_ap_cache_per_scan); 638 setIntField(env, capabilities, "max_rssi_sample_size", c.max_rssi_sample_size); 639 setIntField(env, capabilities, "max_scan_reporting_threshold", c.max_scan_reporting_threshold); 640 setIntField(env, capabilities, "max_hotlist_bssids", c.max_hotlist_bssids); 641 setIntField(env, capabilities, "max_significant_wifi_change_aps", 642 c.max_significant_wifi_change_aps); 643 644 return JNI_TRUE; 645} 646 647 648static byte parseHexChar(char ch) { 649 if (isdigit(ch)) 650 return ch - '0'; 651 else if ('A' <= ch && ch <= 'F') 652 return ch - 'A' + 10; 653 else if ('a' <= ch && ch <= 'f') 654 return ch - 'a' + 10; 655 else { 656 ALOGE("invalid character in bssid %c", ch); 657 return 0; 658 } 659} 660 661static byte parseHexByte(const char * &str) { 662 byte b = parseHexChar(str[0]); 663 if (str[1] == ':' || str[1] == '\0') { 664 str += 2; 665 return b; 666 } else { 667 b = b << 4 | parseHexChar(str[1]); 668 str += 3; 669 return b; 670 } 671} 672 673static void parseMacAddress(const char *str, mac_addr addr) { 674 addr[0] = parseHexByte(str); 675 addr[1] = parseHexByte(str); 676 addr[2] = parseHexByte(str); 677 addr[3] = parseHexByte(str); 678 addr[4] = parseHexByte(str); 679 addr[5] = parseHexByte(str); 680} 681 682static bool parseMacAddress(JNIEnv *env, jobject obj, mac_addr addr) { 683 jstring macAddrString = (jstring) getObjectField( 684 env, obj, "bssid", "Ljava/lang/String;"); 685 686 if (macAddrString == NULL) { 687 ALOGE("Error getting bssid field"); 688 return false; 689 } 690 691 const char *bssid = env->GetStringUTFChars(macAddrString, NULL); 692 if (bssid == NULL) { 693 ALOGE("Error getting bssid"); 694 return false; 695 } 696 697 parseMacAddress(bssid, addr); 698 return true; 699} 700 701static void onHotlistApFound(wifi_request_id id, 702 unsigned num_results, wifi_scan_result *results) { 703 704 JNIEnv *env = NULL; 705 mVM->AttachCurrentThread(&env, NULL); 706 707 ALOGD("onHotlistApFound called, vm = %p, obj = %p, env = %p, num_results = %d", 708 mVM, mCls, env, num_results); 709 710 jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); 711 if (clsScanResult == NULL) { 712 ALOGE("Error in accessing class"); 713 return; 714 } 715 716 jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); 717 if (scanResults == NULL) { 718 ALOGE("Error in allocating array"); 719 return; 720 } 721 722 for (unsigned i = 0; i < num_results; i++) { 723 724 jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); 725 if (scanResult == NULL) { 726 ALOGE("Error in creating scan result"); 727 return; 728 } 729 730 setStringField(env, scanResult, "SSID", results[i].ssid); 731 732 char bssid[32]; 733 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", results[i].bssid[0], results[i].bssid[1], 734 results[i].bssid[2], results[i].bssid[3], results[i].bssid[4], results[i].bssid[5]); 735 736 setStringField(env, scanResult, "BSSID", bssid); 737 738 setIntField(env, scanResult, "level", results[i].rssi); 739 setIntField(env, scanResult, "frequency", results[i].channel); 740 setLongField(env, scanResult, "timestamp", results[i].ts); 741 742 env->SetObjectArrayElement(scanResults, i, scanResult); 743 744 ALOGD("Found AP %32s %s", results[i].ssid, bssid); 745 } 746 747 reportEvent(env, mCls, "onHotlistApFound", "(I[Landroid/net/wifi/ScanResult;)V", 748 id, scanResults); 749} 750 751static void onHotlistApLost(wifi_request_id id, 752 unsigned num_results, wifi_scan_result *results) { 753 754 JNIEnv *env = NULL; 755 mVM->AttachCurrentThread(&env, NULL); 756 757 ALOGD("onHotlistApLost called, vm = %p, obj = %p, env = %p, num_results = %d", 758 mVM, mCls, env, num_results); 759 760 jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); 761 if (clsScanResult == NULL) { 762 ALOGE("Error in accessing class"); 763 return; 764 } 765 766 jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); 767 if (scanResults == NULL) { 768 ALOGE("Error in allocating array"); 769 return; 770 } 771 772 for (unsigned i = 0; i < num_results; i++) { 773 774 jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); 775 if (scanResult == NULL) { 776 ALOGE("Error in creating scan result"); 777 return; 778 } 779 780 setStringField(env, scanResult, "SSID", results[i].ssid); 781 782 char bssid[32]; 783 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", results[i].bssid[0], results[i].bssid[1], 784 results[i].bssid[2], results[i].bssid[3], results[i].bssid[4], results[i].bssid[5]); 785 786 setStringField(env, scanResult, "BSSID", bssid); 787 788 setIntField(env, scanResult, "level", results[i].rssi); 789 setIntField(env, scanResult, "frequency", results[i].channel); 790 setLongField(env, scanResult, "timestamp", results[i].ts); 791 792 env->SetObjectArrayElement(scanResults, i, scanResult); 793 794 ALOGD("Lost AP %32s %s", results[i].ssid, bssid); 795 } 796 797 reportEvent(env, mCls, "onHotlistApLost", "(I[Landroid/net/wifi/ScanResult;)V", 798 id, scanResults); 799} 800 801 802static jboolean android_net_wifi_setHotlist( 803 JNIEnv *env, jclass cls, jint iface, jint id, jobject ap) { 804 805 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 806 ALOGD("setting hotlist on interface[%d] = %p", iface, handle); 807 808 wifi_bssid_hotlist_params params; 809 memset(¶ms, 0, sizeof(params)); 810 811 params.lost_ap_sample_size = getIntField(env, ap, "apLostThreshold"); 812 813 jobjectArray array = (jobjectArray) getObjectField(env, ap, 814 "bssidInfos", "[Landroid/net/wifi/WifiScanner$BssidInfo;"); 815 params.num_bssid = env->GetArrayLength(array); 816 817 if (params.num_bssid == 0) { 818 ALOGE("Error in accesing array"); 819 return false; 820 } 821 822 for (int i = 0; i < params.num_bssid; i++) { 823 jobject objAp = env->GetObjectArrayElement(array, i); 824 825 jstring macAddrString = (jstring) getObjectField( 826 env, objAp, "bssid", "Ljava/lang/String;"); 827 if (macAddrString == NULL) { 828 ALOGE("Error getting bssid field"); 829 return false; 830 } 831 832 const char *bssid = env->GetStringUTFChars(macAddrString, NULL); 833 if (bssid == NULL) { 834 ALOGE("Error getting bssid"); 835 return false; 836 } 837 parseMacAddress(bssid, params.ap[i].bssid); 838 839 mac_addr addr; 840 memcpy(addr, params.ap[i].bssid, sizeof(mac_addr)); 841 842 char bssidOut[32]; 843 sprintf(bssidOut, "%0x:%0x:%0x:%0x:%0x:%0x", addr[0], addr[1], 844 addr[2], addr[3], addr[4], addr[5]); 845 846 ALOGD("Added bssid %s", bssidOut); 847 848 params.ap[i].low = getIntField(env, objAp, "low"); 849 params.ap[i].high = getIntField(env, objAp, "high"); 850 } 851 852 wifi_hotlist_ap_found_handler handler; 853 memset(&handler, 0, sizeof(handler)); 854 855 handler.on_hotlist_ap_found = &onHotlistApFound; 856 handler.on_hotlist_ap_lost = &onHotlistApLost; 857 return hal_fn.wifi_set_bssid_hotlist(id, handle, params, handler) == WIFI_SUCCESS; 858} 859 860static jboolean android_net_wifi_resetHotlist( 861 JNIEnv *env, jclass cls, jint iface, jint id) { 862 863 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 864 ALOGD("resetting hotlist on interface[%d] = %p", iface, handle); 865 866 return hal_fn.wifi_reset_bssid_hotlist(id, handle) == WIFI_SUCCESS; 867} 868 869void onSignificantWifiChange(wifi_request_id id, 870 unsigned num_results, wifi_significant_change_result **results) { 871 JNIEnv *env = NULL; 872 mVM->AttachCurrentThread(&env, NULL); 873 874 ALOGD("onSignificantWifiChange called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 875 876 jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); 877 if (clsScanResult == NULL) { 878 ALOGE("Error in accessing class"); 879 return; 880 } 881 882 jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); 883 if (scanResults == NULL) { 884 ALOGE("Error in allocating array"); 885 return; 886 } 887 888 for (unsigned i = 0; i < num_results; i++) { 889 890 wifi_significant_change_result &result = *(results[i]); 891 892 jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); 893 if (scanResult == NULL) { 894 ALOGE("Error in creating scan result"); 895 return; 896 } 897 898 // setStringField(env, scanResult, "SSID", results[i].ssid); 899 900 char bssid[32]; 901 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result.bssid[0], result.bssid[1], 902 result.bssid[2], result.bssid[3], result.bssid[4], result.bssid[5]); 903 904 setStringField(env, scanResult, "BSSID", bssid); 905 906 setIntField(env, scanResult, "level", result.rssi[0]); 907 setIntField(env, scanResult, "frequency", result.channel); 908 // setLongField(env, scanResult, "timestamp", result.ts); 909 910 env->SetObjectArrayElement(scanResults, i, scanResult); 911 } 912 913 reportEvent(env, mCls, "onSignificantWifiChange", "(I[Landroid/net/wifi/ScanResult;)V", 914 id, scanResults); 915 916} 917 918static jboolean android_net_wifi_trackSignificantWifiChange( 919 JNIEnv *env, jclass cls, jint iface, jint id, jobject settings) { 920 921 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 922 ALOGD("tracking significant wifi change on interface[%d] = %p", iface, handle); 923 924 wifi_significant_change_params params; 925 memset(¶ms, 0, sizeof(params)); 926 927 params.rssi_sample_size = getIntField(env, settings, "rssiSampleSize"); 928 params.lost_ap_sample_size = getIntField(env, settings, "lostApSampleSize"); 929 params.min_breaching = getIntField(env, settings, "minApsBreachingThreshold"); 930 931 const char *bssid_info_array_type = "[Landroid/net/wifi/WifiScanner$BssidInfo;"; 932 jobjectArray bssids = (jobjectArray)getObjectField( 933 env, settings, "bssidInfos", bssid_info_array_type); 934 params.num_bssid = env->GetArrayLength(bssids); 935 936 if (params.num_bssid == 0) { 937 ALOGE("Error in accessing array"); 938 return false; 939 } 940 941 ALOGD("Initialized common fields %d, %d, %d, %d", params.rssi_sample_size, 942 params.lost_ap_sample_size, params.min_breaching, params.num_bssid); 943 944 for (int i = 0; i < params.num_bssid; i++) { 945 jobject objAp = env->GetObjectArrayElement(bssids, i); 946 947 jstring macAddrString = (jstring) getObjectField( 948 env, objAp, "bssid", "Ljava/lang/String;"); 949 if (macAddrString == NULL) { 950 ALOGE("Error getting bssid field"); 951 return false; 952 } 953 954 const char *bssid = env->GetStringUTFChars(macAddrString, NULL); 955 if (bssid == NULL) { 956 ALOGE("Error getting bssid"); 957 return false; 958 } 959 960 mac_addr addr; 961 parseMacAddress(bssid, addr); 962 memcpy(params.ap[i].bssid, addr, sizeof(mac_addr)); 963 964 char bssidOut[32]; 965 sprintf(bssidOut, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0], addr[1], 966 addr[2], addr[3], addr[4], addr[5]); 967 968 params.ap[i].low = getIntField(env, objAp, "low"); 969 params.ap[i].high = getIntField(env, objAp, "high"); 970 971 ALOGD("Added bssid %s, [%04d, %04d]", bssidOut, params.ap[i].low, params.ap[i].high); 972 } 973 974 ALOGD("Added %d bssids", params.num_bssid); 975 976 wifi_significant_change_handler handler; 977 memset(&handler, 0, sizeof(handler)); 978 979 handler.on_significant_change = &onSignificantWifiChange; 980 return hal_fn.wifi_set_significant_change_handler(id, handle, params, handler) == WIFI_SUCCESS; 981} 982 983static jboolean android_net_wifi_untrackSignificantWifiChange( 984 JNIEnv *env, jclass cls, jint iface, jint id) { 985 986 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 987 ALOGD("resetting significant wifi change on interface[%d] = %p", iface, handle); 988 989 return hal_fn.wifi_reset_significant_change_handler(id, handle) == WIFI_SUCCESS; 990} 991 992wifi_iface_stat link_stat; 993wifi_radio_stat radio_stat; // L release has support for only one radio 994 995void onLinkStatsResults(wifi_request_id id, wifi_iface_stat *iface_stat, 996 int num_radios, wifi_radio_stat *radio_stats) 997{ 998 if (iface_stat != 0) { 999 memcpy(&link_stat, iface_stat, sizeof(wifi_iface_stat)); 1000 } else { 1001 memset(&link_stat, 0, sizeof(wifi_iface_stat)); 1002 } 1003 1004 if (num_radios > 0 && radio_stats != 0) { 1005 memcpy(&radio_stat, radio_stats, sizeof(wifi_radio_stat)); 1006 } else { 1007 memset(&radio_stat, 0, sizeof(wifi_radio_stat)); 1008 } 1009} 1010 1011static jobject android_net_wifi_getLinkLayerStats (JNIEnv *env, jclass cls, jint iface) { 1012 1013 wifi_stats_result_handler handler; 1014 memset(&handler, 0, sizeof(handler)); 1015 handler.on_link_stats_results = &onLinkStatsResults; 1016 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1017 int result = hal_fn.wifi_get_link_stats(0, handle, handler); 1018 if (result < 0) { 1019 ALOGE("android_net_wifi_getLinkLayerStats: failed to get link statistics\n"); 1020 return NULL; 1021 } 1022 1023 jobject wifiLinkLayerStats = createObject(env, "android/net/wifi/WifiLinkLayerStats"); 1024 if (wifiLinkLayerStats == NULL) { 1025 ALOGE("Error in allocating wifiLinkLayerStats"); 1026 return NULL; 1027 } 1028 1029 setIntField(env, wifiLinkLayerStats, "beacon_rx", link_stat.beacon_rx); 1030 setIntField(env, wifiLinkLayerStats, "rssi_mgmt", link_stat.rssi_mgmt); 1031 setLongField(env, wifiLinkLayerStats, "rxmpdu_be", link_stat.ac[WIFI_AC_BE].rx_mpdu); 1032 setLongField(env, wifiLinkLayerStats, "rxmpdu_bk", link_stat.ac[WIFI_AC_BK].rx_mpdu); 1033 setLongField(env, wifiLinkLayerStats, "rxmpdu_vi", link_stat.ac[WIFI_AC_VI].rx_mpdu); 1034 setLongField(env, wifiLinkLayerStats, "rxmpdu_vo", link_stat.ac[WIFI_AC_VO].rx_mpdu); 1035 setLongField(env, wifiLinkLayerStats, "txmpdu_be", link_stat.ac[WIFI_AC_BE].tx_mpdu); 1036 setLongField(env, wifiLinkLayerStats, "txmpdu_bk", link_stat.ac[WIFI_AC_BK].tx_mpdu); 1037 setLongField(env, wifiLinkLayerStats, "txmpdu_vi", link_stat.ac[WIFI_AC_VI].tx_mpdu); 1038 setLongField(env, wifiLinkLayerStats, "txmpdu_vo", link_stat.ac[WIFI_AC_VO].tx_mpdu); 1039 setLongField(env, wifiLinkLayerStats, "lostmpdu_be", link_stat.ac[WIFI_AC_BE].mpdu_lost); 1040 setLongField(env, wifiLinkLayerStats, "lostmpdu_bk", link_stat.ac[WIFI_AC_BK].mpdu_lost); 1041 setLongField(env, wifiLinkLayerStats, "lostmpdu_vi", link_stat.ac[WIFI_AC_VI].mpdu_lost); 1042 setLongField(env, wifiLinkLayerStats, "lostmpdu_vo", link_stat.ac[WIFI_AC_VO].mpdu_lost); 1043 setLongField(env, wifiLinkLayerStats, "retries_be", link_stat.ac[WIFI_AC_BE].retries); 1044 setLongField(env, wifiLinkLayerStats, "retries_bk", link_stat.ac[WIFI_AC_BK].retries); 1045 setLongField(env, wifiLinkLayerStats, "retries_vi", link_stat.ac[WIFI_AC_VI].retries); 1046 setLongField(env, wifiLinkLayerStats, "retries_vo", link_stat.ac[WIFI_AC_VO].retries); 1047 1048 1049 setIntField(env, wifiLinkLayerStats, "on_time", radio_stat.on_time); 1050 setIntField(env, wifiLinkLayerStats, "tx_time", radio_stat.tx_time); 1051 setIntField(env, wifiLinkLayerStats, "rx_time", radio_stat.rx_time); 1052 setIntField(env, wifiLinkLayerStats, "on_time_scan", radio_stat.on_time_scan); 1053 1054 return wifiLinkLayerStats; 1055} 1056 1057static jint android_net_wifi_getSupportedFeatures(JNIEnv *env, jclass cls, jint iface) { 1058 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1059 feature_set set = 0; 1060 1061 wifi_error result = WIFI_SUCCESS; 1062 /* 1063 set = WIFI_FEATURE_INFRA 1064 | WIFI_FEATURE_INFRA_5G 1065 | WIFI_FEATURE_HOTSPOT 1066 | WIFI_FEATURE_P2P 1067 | WIFI_FEATURE_SOFT_AP 1068 | WIFI_FEATURE_GSCAN 1069 | WIFI_FEATURE_PNO 1070 | WIFI_FEATURE_TDLS 1071 | WIFI_FEATURE_EPR; 1072 */ 1073 1074 result = hal_fn.wifi_get_supported_feature_set(handle, &set); 1075 if (result == WIFI_SUCCESS) { 1076 ALOGD("wifi_get_supported_feature_set returned set = 0x%x", set); 1077 return set; 1078 } else { 1079 ALOGD("wifi_get_supported_feature_set returned error = 0x%x", result); 1080 return 0; 1081 } 1082} 1083 1084static void onRttResults(wifi_request_id id, unsigned num_results, wifi_rtt_result* results[]) { 1085 JNIEnv *env = NULL; 1086 mVM->AttachCurrentThread(&env, NULL); 1087 1088 ALOGD("onRttResults called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 1089 1090 jclass clsRttResult = (env)->FindClass("android/net/wifi/RttManager$RttResult"); 1091 if (clsRttResult == NULL) { 1092 ALOGE("Error in accessing class"); 1093 return; 1094 } 1095 1096 jobjectArray rttResults = env->NewObjectArray(num_results, clsRttResult, NULL); 1097 if (rttResults == NULL) { 1098 ALOGE("Error in allocating array"); 1099 return; 1100 } 1101 1102 for (unsigned i = 0; i < num_results; i++) { 1103 1104 wifi_rtt_result *result = results[i]; 1105 1106 jobject rttResult = createObject(env, "android/net/wifi/RttManager$RttResult"); 1107 if (rttResult == NULL) { 1108 ALOGE("Error in creating rtt result"); 1109 return; 1110 } 1111 1112 char bssid[32]; 1113 sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result->addr[0], result->addr[1], 1114 result->addr[2], result->addr[3], result->addr[4], result->addr[5]); 1115 1116 setStringField(env, rttResult, "bssid", bssid); 1117 setIntField(env, rttResult, "burstNumber", result->burst_num); 1118 setIntField(env, rttResult, "measurementFrameNumber", result->measurement_number); 1119 setIntField(env, rttResult, "successMeasurementFrameNumber", result->success_number); 1120 setIntField(env, rttResult, "frameNumberPerBurstPeer", result->number_per_burst_peer); 1121 setIntField(env, rttResult, "status", result->status); 1122 setIntField(env, rttResult, "measurementType", result->type); 1123 setIntField(env, rttResult, "retryAfterDuration", result->retry_after_duration); 1124 setLongField(env, rttResult, "ts", result->ts); 1125 setIntField(env, rttResult, "rssi", result->rssi); 1126 setIntField(env, rttResult, "rssiSpread", result->rssi_spread); 1127 setIntField(env, rttResult, "txRate", result->tx_rate.bitrate); 1128 setIntField(env, rttResult, "rxRate", result->rx_rate.bitrate); 1129 setLongField(env, rttResult, "rtt", result->rtt); 1130 setLongField(env, rttResult, "rttStandardDeviation", result->rtt_sd); 1131 setIntField(env, rttResult, "distance", result->distance); 1132 setIntField(env, rttResult, "distanceStandardDeviation", result->distance_sd); 1133 setIntField(env, rttResult, "distanceSpread", result->distance_spread); 1134 setIntField(env, rttResult, "burstDuration", result->burst_duration); 1135 setIntField(env, rttResult, "negotiatedBurstNum", result->negotiated_burst_num); 1136 jobject LCI = createObject(env, "android/net/wifi/RttManager$WifiInformationElement"); 1137 if (result->LCI != NULL && result->LCI->len > 0) { 1138 ALOGD("Add LCI in result"); 1139 setByteField(env, LCI, "id", result->LCI->id); 1140 jbyteArray elements = env->NewByteArray(result->LCI->len); 1141 jbyte *bytes = (jbyte *)&(result->LCI->data[0]); 1142 env->SetByteArrayRegion(elements, 0, result->LCI->len, bytes); 1143 setObjectField(env, LCI, "data", "[B", elements); 1144 env->DeleteLocalRef(elements); 1145 } else { 1146 ALOGD("No LCI in result"); 1147 setByteField(env, LCI, "id", (byte)(0xff)); 1148 } 1149 setObjectField(env, rttResult, "LCI", 1150 "Landroid/net/wifi/RttManager$WifiInformationElement;", LCI); 1151 1152 jobject LCR = createObject(env, "android/net/wifi/RttManager$WifiInformationElement"); 1153 if (result->LCR != NULL && result->LCR->len > 0) { 1154 ALOGD("Add LCR in result"); 1155 setByteField(env, LCR, "id", result->LCR->id); 1156 jbyteArray elements = env->NewByteArray(result->LCI->len); 1157 jbyte *bytes = (jbyte *)&(result->LCR->data[0]); 1158 env->SetByteArrayRegion(elements, 0, result->LCI->len, bytes); 1159 setObjectField(env, LCR, "data", "[B", elements); 1160 env->DeleteLocalRef(elements); 1161 } else { 1162 ALOGD("No LCR in result"); 1163 setByteField(env, LCR, "id", (byte)(0xff)); 1164 } 1165 setObjectField(env, rttResult, "LCR", 1166 "Landroid/net/wifi/RttManager$WifiInformationElement;", LCR); 1167 1168 env->SetObjectArrayElement(rttResults, i, rttResult); 1169 env->DeleteLocalRef(LCI); 1170 env->DeleteLocalRef(LCR); 1171 env->DeleteLocalRef(rttResult); 1172 } 1173 1174 reportEvent(env, mCls, "onRttResults", "(I[Landroid/net/wifi/RttManager$RttResult;)V", 1175 id, rttResults); 1176 1177 //clean the local reference 1178 env->DeleteLocalRef(rttResults); 1179 env->DeleteLocalRef(clsRttResult); 1180 1181} 1182 1183const int MaxRttConfigs = 16; 1184 1185static jboolean android_net_wifi_requestRange( 1186 JNIEnv *env, jclass cls, jint iface, jint id, jobject params) { 1187 1188 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1189 ALOGD("sending rtt request [%d] = %p", id, handle); 1190 1191 wifi_rtt_config configs[MaxRttConfigs]; 1192 memset(&configs, 0, sizeof(configs)); 1193 1194 int len = env->GetArrayLength((jobjectArray)params); 1195 if (len > MaxRttConfigs) { 1196 return false; 1197 } 1198 1199 for (int i = 0; i < len; i++) { 1200 1201 jobject param = env->GetObjectArrayElement((jobjectArray)params, i); 1202 if (param == NULL) { 1203 ALOGD("could not get element %d", i); 1204 continue; 1205 } 1206 1207 wifi_rtt_config &config = configs[i]; 1208 1209 parseMacAddress(env, param, config.addr); 1210 config.type = (wifi_rtt_type)getIntField(env, param, "requestType"); 1211 config.peer = (rtt_peer_type)getIntField(env, param, "deviceType"); 1212 config.channel.center_freq = getIntField(env, param, "frequency"); 1213 config.channel.width = (wifi_channel_width) getIntField(env, param, "channelWidth"); 1214 config.channel.center_freq0 = getIntField(env, param, "centerFreq0"); 1215 config.channel.center_freq1 = getIntField(env, param, "centerFreq1"); 1216 1217 config.num_burst = getIntField(env, param, "numberBurst"); 1218 config.burst_period = (unsigned) getIntField(env, param, "interval"); 1219 config.num_frames_per_burst = (unsigned) getIntField(env, param, "numSamplesPerBurst"); 1220 config.num_retries_per_rtt_frame = (unsigned) getIntField(env, param, 1221 "numRetriesPerMeasurementFrame"); 1222 config.num_retries_per_ftmr = (unsigned) getIntField(env, param, "numRetriesPerFTMR"); 1223 config.LCI_request = getBoolField(env, param, "LCIRequest") ? 1 : 0; 1224 config.LCR_request = getBoolField(env, param, "LCRRequest") ? 1 : 0; 1225 config.burst_duration = (unsigned) getIntField(env, param, "burstTimeout"); 1226 config.preamble = (wifi_rtt_preamble) getIntField(env, param, "preamble"); 1227 config.bw = (wifi_rtt_bw) getIntField(env, param, "bandwidth"); 1228 1229 ALOGD("RTT request destination %d: type is %d, peer is %d, bw is %d, center_freq is %d ", i, 1230 config.type,config.peer, config.channel.width, config.channel.center_freq0); 1231 ALOGD("center_freq0 is %d, center_freq1 is %d, num_burst is %d,interval is %d", 1232 config.channel.center_freq0, config.channel.center_freq1, config.num_burst, 1233 config.burst_period); 1234 ALOGD("frames_per_burst is %d, retries of measurement frame is %d, retries_per_ftmr is %d", 1235 config.num_frames_per_burst, config.num_retries_per_rtt_frame, 1236 config.num_retries_per_ftmr); 1237 ALOGD("LCI_requestis %d, LCR_request is %d, burst_timeout is %d, preamble is %d, bw is %d", 1238 config.LCI_request, config.LCR_request, config.burst_duration, config.preamble, 1239 config.bw); 1240 } 1241 1242 wifi_rtt_event_handler handler; 1243 handler.on_rtt_results = &onRttResults; 1244 1245 return hal_fn.wifi_rtt_range_request(id, handle, len, configs, handler) == WIFI_SUCCESS; 1246} 1247 1248static jboolean android_net_wifi_cancelRange( 1249 JNIEnv *env, jclass cls, jint iface, jint id, jobject params) { 1250 1251 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1252 ALOGD("cancelling rtt request [%d] = %p", id, handle); 1253 1254 mac_addr addrs[MaxRttConfigs]; 1255 memset(&addrs, 0, sizeof(addrs)); 1256 1257 int len = env->GetArrayLength((jobjectArray)params); 1258 if (len > MaxRttConfigs) { 1259 return false; 1260 } 1261 1262 for (int i = 0; i < len; i++) { 1263 1264 jobject param = env->GetObjectArrayElement((jobjectArray)params, i); 1265 if (param == NULL) { 1266 ALOGD("could not get element %d", i); 1267 continue; 1268 } 1269 1270 parseMacAddress(env, param, addrs[i]); 1271 } 1272 1273 return hal_fn.wifi_rtt_range_cancel(id, handle, len, addrs) == WIFI_SUCCESS; 1274} 1275 1276static jboolean android_net_wifi_setScanningMacOui(JNIEnv *env, jclass cls, 1277 jint iface, jbyteArray param) { 1278 1279 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1280 ALOGD("setting scan oui %p", handle); 1281 1282 static const unsigned oui_len = 3; /* OUI is upper 3 bytes of mac_address */ 1283 int len = env->GetArrayLength(param); 1284 if (len != oui_len) { 1285 ALOGE("invalid oui length %d", len); 1286 return false; 1287 } 1288 1289 jbyte* bytes = env->GetByteArrayElements(param, NULL); 1290 if (bytes == NULL) { 1291 ALOGE("failed to get array"); 1292 return false; 1293 } 1294 1295 return hal_fn.wifi_set_scanning_mac_oui(handle, (byte *)bytes) == WIFI_SUCCESS; 1296} 1297 1298static jintArray android_net_wifi_getValidChannels(JNIEnv *env, jclass cls, 1299 jint iface, jint band) { 1300 1301 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1302 ALOGD("getting valid channels %p", handle); 1303 1304 static const int MaxChannels = 64; 1305 wifi_channel channels[64]; 1306 int num_channels = 0; 1307 wifi_error result = hal_fn.wifi_get_valid_channels(handle, band, MaxChannels, 1308 channels, &num_channels); 1309 1310 if (result == WIFI_SUCCESS) { 1311 jintArray channelArray = env->NewIntArray(num_channels); 1312 if (channelArray == NULL) { 1313 ALOGE("failed to allocate channel list"); 1314 return NULL; 1315 } 1316 1317 env->SetIntArrayRegion(channelArray, 0, num_channels, channels); 1318 return channelArray; 1319 } else { 1320 ALOGE("failed to get channel list : %d", result); 1321 return NULL; 1322 } 1323} 1324 1325static jboolean android_net_wifi_setDfsFlag(JNIEnv *env, jclass cls, jint iface, jboolean dfs) { 1326 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1327 ALOGD("setting dfs flag to %s, %p", dfs ? "true" : "false", handle); 1328 1329 u32 nodfs = dfs ? 0 : 1; 1330 wifi_error result = hal_fn.wifi_set_nodfs_flag(handle, nodfs); 1331 return result == WIFI_SUCCESS; 1332} 1333 1334static jobject android_net_wifi_get_rtt_capabilities(JNIEnv *env, jclass cls, jint iface) { 1335 wifi_rtt_capabilities rtt_capabilities; 1336 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1337 wifi_error ret = hal_fn.wifi_get_rtt_capabilities(handle, &rtt_capabilities); 1338 1339 if(WIFI_SUCCESS == ret) { 1340 jobject capabilities = createObject(env, "android/net/wifi/RttManager$RttCapabilities"); 1341 setBooleanField(env, capabilities, "oneSidedRttSupported", 1342 rtt_capabilities.rtt_one_sided_supported == 1); 1343 setBooleanField(env, capabilities, "twoSided11McRttSupported", 1344 rtt_capabilities.rtt_ftm_supported == 1); 1345 setBooleanField(env, capabilities, "lciSupported", 1346 rtt_capabilities.lci_support); 1347 setBooleanField(env,capabilities, "lcrSupported", 1348 rtt_capabilities.lcr_support); 1349 setIntField(env, capabilities, "preambleSupported", 1350 rtt_capabilities.preamble_support); 1351 setIntField(env, capabilities, "bwSupported", 1352 rtt_capabilities.bw_support); 1353 ALOGD("One side RTT is: %s", rtt_capabilities.rtt_one_sided_supported ==1 ? "support" : 1354 "not support"); 1355 ALOGD("Two side RTT is: %s", rtt_capabilities.rtt_ftm_supported == 1 ? "support" : 1356 "not support"); 1357 ALOGD("LCR is: %s", rtt_capabilities.lcr_support == 1 ? "support" : "not support"); 1358 1359 ALOGD("LCI is: %s", rtt_capabilities.lci_support == 1 ? "support" : "not support"); 1360 1361 ALOGD("Support Preamble is : %d support BW is %d", rtt_capabilities.preamble_support, 1362 rtt_capabilities.bw_support); 1363 return capabilities; 1364 } else { 1365 return NULL; 1366 } 1367} 1368 1369static jboolean android_net_wifi_set_Country_Code_Hal(JNIEnv *env,jclass cls, jint iface, 1370 jstring country_code) { 1371 1372 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1373 const char *country = env->GetStringUTFChars(country_code, NULL); 1374 1375 ALOGD("set country code: %s", country); 1376 wifi_error res = hal_fn.wifi_set_country_code(handle, country); 1377 env->ReleaseStringUTFChars(country_code, country); 1378 1379 return res == WIFI_SUCCESS; 1380} 1381// ---------------------------------------------------------------------------- 1382// Debug framework 1383// ---------------------------------------------------------------------------- 1384 1385static void onRingBufferData(char * ring_name, char * buffer, 1386int buffer_size, wifi_ring_buffer_status *status) { 1387 JNIEnv *env = NULL; 1388 mVM->AttachCurrentThread(&env, NULL); 1389 1390 ALOGD("onRingBufferData called, vm = %p, obj = %p, env = %p", mVM, mCls, env); 1391 1392 reportEvent(env, mCls, "onDataAvailable", "(I[Landroid/net/wifi/WiFiLogger$LogData;)V", 1393 0, 0); 1394} 1395 1396static jboolean android_net_wifi_start_logging(JNIEnv *env, jclass cls, jint iface) { 1397 1398 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1399 ALOGD("android_net_wifi_start_logging = %p", handle); 1400 1401 if (handle == 0) { 1402 return WIFI_ERROR_UNINITIALIZED; 1403 } 1404 wifi_ring_buffer_data_handler handler; 1405 handler.on_ring_buffer_data = &onRingBufferData; 1406 1407 wifi_error result = WIFI_SUCCESS; //ifi_start_logging(handle, 1, 0, 5, 4*1024,(u8*)"wifi_connectivity_events", handler); 1408 1409 return result; 1410} 1411 1412// ---------------------------------------------------------------------------- 1413// ePno framework 1414// ---------------------------------------------------------------------------- 1415 1416 1417static void onPnoNetworkFound(wifi_request_id id, 1418 unsigned num_results, wifi_scan_result *results) { 1419 JNIEnv *env = NULL; 1420 mVM->AttachCurrentThread(&env, NULL); 1421 1422 ALOGD("onPnoNetworkFound called, vm = %p, obj = %p, env = %p, num_results %u", 1423 mVM, mCls, env, num_results); 1424 1425 if (results == 0 || num_results == 0) { 1426 ALOGE("onPnoNetworkFound: Error no results"); 1427 return; 1428 } 1429 1430 jobject scanResult; 1431 jbyte *bytes; 1432 jobjectArray scanResults; 1433 //jbyteArray elements; 1434 1435 for (unsigned i=0; i<num_results; i++) { 1436 1437 scanResult = createScanResult(env, &results[i]); 1438 if (i == 0) { 1439 scanResults = env->NewObjectArray(num_results, 1440 env->FindClass("android/net/wifi/ScanResult"), scanResult); 1441 if (scanResults == 0) { 1442 ALOGD("cant allocate array"); 1443 } else { 1444 ALOGD("allocated array %u", env->GetArrayLength(scanResults)); 1445 } 1446 } else { 1447 env->SetObjectArrayElement(scanResults, i, scanResult); 1448 } 1449 1450 ALOGD("Scan result with ie length %d, i %u, <%s> rssi=%d %02x:%02x:%02x:%02x:%02x:%02x", results->ie_length, i, 1451 results[i].ssid, results[i].rssi, results[i].bssid[0], results[i].bssid[1], 1452 results[i].bssid[2], results[i].bssid[3], results[i].bssid[4], results[i].bssid[5]); 1453 1454 /*elements = env->NewByteArray(results->ie_length); 1455 if (elements == NULL) { 1456 ALOGE("Error in allocating array"); 1457 return; 1458 }*/ 1459 1460 //ALOGD("onPnoNetworkFound: Setting byte array"); 1461 1462 //bytes = (jbyte *)&(results->ie_data[0]); 1463 //env->SetByteArrayRegion(elements, 0, results->ie_length, bytes); 1464 1465 //ALOGD("onPnoNetworkFound: Returning result"); 1466 } 1467 1468 1469 ALOGD("calling report"); 1470 1471 reportEvent(env, mCls, "onPnoNetworkFound", "(I[Landroid/net/wifi/ScanResult;)V", id, 1472 scanResults); 1473 ALOGD("free ref"); 1474 1475 env->DeleteLocalRef(scanResults); 1476 //env->DeleteLocalRef(elements); 1477} 1478 1479static jboolean android_net_wifi_setPnoListNative( 1480 JNIEnv *env, jclass cls, jint iface, jint id, jobject list) { 1481 1482 wifi_epno_handler handler; 1483 handler.on_network_found = &onPnoNetworkFound; 1484 1485 wifi_interface_handle handle = getIfaceHandle(env, cls, iface); 1486 ALOGD("configure ePno list request [%d] = %p", id, handle); 1487 1488 if (list == NULL) { 1489 // stop pno 1490 int result = hal_fn.wifi_set_epno_list(id, handle, 0, NULL, handler); 1491 ALOGE(" setPnoListNative: STOP result = %d", result); 1492 return result; 1493 } 1494 1495 wifi_epno_network net_list[MAX_PNO_SSID]; 1496 memset(&net_list, 0, sizeof(net_list)); 1497 1498 size_t len = env->GetArrayLength((jobjectArray)list); 1499 if (len > (size_t)MAX_PNO_SSID) { 1500 return false; 1501 } 1502 1503 for (unsigned int i = 0; i < len; i++) { 1504 1505 jobject pno_net = env->GetObjectArrayElement((jobjectArray)list, i); 1506 if (pno_net == NULL) { 1507 ALOGD("setPnoListNative: could not get element %d", i); 1508 continue; 1509 } 1510 1511 jstring sssid = (jstring) getObjectField( 1512 env, pno_net, "SSID", "Ljava/lang/String;"); 1513 if (sssid == NULL) { 1514 ALOGE("Error setPnoListNative: getting ssid field"); 1515 return false; 1516 } 1517 1518 const char *ssid = env->GetStringUTFChars(sssid, NULL); 1519 if (ssid == NULL) { 1520 ALOGE("Error setPnoListNative: getting ssid"); 1521 return false; 1522 } 1523 int ssid_len = strnlen((const char*)ssid, 33); 1524 if (ssid_len > 32) { 1525 ALOGE("Error setPnoListNative: long ssid %u", strnlen((const char*)ssid, 256)); 1526 return false; 1527 } 1528 if (ssid_len > 1 && ssid[0] == '"' && ssid[ssid_len-1]) 1529 { 1530 // strip leading and trailing '"' 1531 ssid++; 1532 ssid_len-=2; 1533 } 1534 if (ssid_len == 0) { 1535 ALOGE("Error setPnoListNative: zero length ssid, skip it"); 1536 continue; 1537 } 1538 memcpy(net_list[i].ssid, ssid, ssid_len); 1539 1540 int rssit = getIntField(env, pno_net, "rssi_threshold"); 1541 net_list[i].rssi_threshold = (byte)rssit; 1542 int a = getIntField(env, pno_net, "auth"); 1543 net_list[i].auth_bit_field = a; 1544 int f = getIntField(env, pno_net, "flags"); 1545 net_list[i].flags = f; 1546 ALOGE(" setPnoListNative: idx %u rssi %d/%d auth %x/%x flags %x/%x [%s]", i, (signed byte)net_list[i].rssi_threshold, net_list[i].rssi_threshold, net_list[i].auth_bit_field, a, net_list[i].flags, f, net_list[i].ssid); 1547 } 1548 1549 int result = hal_fn.wifi_set_epno_list(id, handle, len, net_list, handler); 1550 ALOGE(" setPnoListNative: result %d", result); 1551 1552 return result >= 0; 1553} 1554 1555// ---------------------------------------------------------------------------- 1556 1557/* 1558 * JNI registration. 1559 */ 1560static JNINativeMethod gWifiMethods[] = { 1561 /* name, signature, funcPtr */ 1562 1563 { "loadDriver", "()Z", (void *)android_net_wifi_loadDriver }, 1564 { "isDriverLoaded", "()Z", (void *)android_net_wifi_isDriverLoaded }, 1565 { "unloadDriver", "()Z", (void *)android_net_wifi_unloadDriver }, 1566 { "startSupplicant", "(Z)Z", (void *)android_net_wifi_startSupplicant }, 1567 { "killSupplicant", "(Z)Z", (void *)android_net_wifi_killSupplicant }, 1568 { "connectToSupplicantNative", "()Z", (void *)android_net_wifi_connectToSupplicant }, 1569 { "closeSupplicantConnectionNative", "()V", 1570 (void *)android_net_wifi_closeSupplicantConnection }, 1571 { "waitForEventNative", "()Ljava/lang/String;", (void*)android_net_wifi_waitForEvent }, 1572 { "doBooleanCommandNative", "(Ljava/lang/String;)Z", (void*)android_net_wifi_doBooleanCommand }, 1573 { "doIntCommandNative", "(Ljava/lang/String;)I", (void*)android_net_wifi_doIntCommand }, 1574 { "doStringCommandNative", "(Ljava/lang/String;)Ljava/lang/String;", 1575 (void*) android_net_wifi_doStringCommand }, 1576 { "startHalNative", "()Z", (void*) android_net_wifi_startHal }, 1577 { "stopHalNative", "()V", (void*) android_net_wifi_stopHal }, 1578 { "waitForHalEventNative", "()V", (void*) android_net_wifi_waitForHalEvents }, 1579 { "getInterfacesNative", "()I", (void*) android_net_wifi_getInterfaces}, 1580 { "getInterfaceNameNative", "(I)Ljava/lang/String;", (void*) android_net_wifi_getInterfaceName}, 1581 { "getScanCapabilitiesNative", "(ILcom/android/server/wifi/WifiNative$ScanCapabilities;)Z", 1582 (void *) android_net_wifi_getScanCapabilities}, 1583 { "startScanNative", "(IILcom/android/server/wifi/WifiNative$ScanSettings;)Z", 1584 (void*) android_net_wifi_startScan}, 1585 { "stopScanNative", "(II)Z", (void*) android_net_wifi_stopScan}, 1586 { "getScanResultsNative", "(IZ)[Landroid/net/wifi/WifiScanner$ScanData;", 1587 (void *) android_net_wifi_getScanResults}, 1588 { "setHotlistNative", "(IILandroid/net/wifi/WifiScanner$HotlistSettings;)Z", 1589 (void*) android_net_wifi_setHotlist}, 1590 { "resetHotlistNative", "(II)Z", (void*) android_net_wifi_resetHotlist}, 1591 { "trackSignificantWifiChangeNative", "(IILandroid/net/wifi/WifiScanner$WifiChangeSettings;)Z", 1592 (void*) android_net_wifi_trackSignificantWifiChange}, 1593 { "untrackSignificantWifiChangeNative", "(II)Z", 1594 (void*) android_net_wifi_untrackSignificantWifiChange}, 1595 { "getWifiLinkLayerStatsNative", "(I)Landroid/net/wifi/WifiLinkLayerStats;", 1596 (void*) android_net_wifi_getLinkLayerStats}, 1597 { "getSupportedFeatureSetNative", "(I)I", 1598 (void*) android_net_wifi_getSupportedFeatures}, 1599 { "requestRangeNative", "(II[Landroid/net/wifi/RttManager$RttParams;)Z", 1600 (void*) android_net_wifi_requestRange}, 1601 { "cancelRangeRequestNative", "(II[Landroid/net/wifi/RttManager$RttParams;)Z", 1602 (void*) android_net_wifi_cancelRange}, 1603 { "setScanningMacOuiNative", "(I[B)Z", (void*) android_net_wifi_setScanningMacOui}, 1604 { "getChannelsForBandNative", "(II)[I", (void*) android_net_wifi_getValidChannels}, 1605 { "setDfsFlagNative", "(IZ)Z", (void*) android_net_wifi_setDfsFlag}, 1606 { "toggleInterfaceNative", "(I)Z", (void*) android_net_wifi_toggle_interface}, 1607 { "getRttCapabilitiesNative", "(I)Landroid/net/wifi/RttManager$RttCapabilities;", 1608 (void*) android_net_wifi_get_rtt_capabilities}, 1609 { "startLogging", "(I)Z", (void*) android_net_wifi_start_logging}, 1610 {"setCountryCodeHalNative", "(ILjava/lang/String;)Z", 1611 (void*) android_net_wifi_set_Country_Code_Hal}, 1612 { "setPnoListNative", "(II[Lcom/android/server/wifi/WifiNative$WifiPnoNetwork;)Z", 1613 (void*) android_net_wifi_setPnoListNative} 1614}; 1615 1616int register_android_net_wifi_WifiNative(JNIEnv* env) { 1617 return AndroidRuntime::registerNativeMethods(env, 1618 "com/android/server/wifi/WifiNative", gWifiMethods, NELEM(gWifiMethods)); 1619} 1620 1621 1622/* User to register native functions */ 1623extern "C" 1624jint Java_com_android_server_wifi_WifiNative_registerNatives(JNIEnv* env, jclass clazz) { 1625 return AndroidRuntime::registerNativeMethods(env, 1626 "com/android/server/wifi/WifiNative", gWifiMethods, NELEM(gWifiMethods)); 1627} 1628 1629}; // namespace android 1630