| /* |
| * Copyright 2008, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "wifi" |
| |
| #include "jni.h" |
| #include <ScopedUtfChars.h> |
| #include <utils/misc.h> |
| #include <android_runtime/AndroidRuntime.h> |
| #include <utils/Log.h> |
| #include <utils/String16.h> |
| #include <ctype.h> |
| |
| #include "wifi.h" |
| #include "wifi_hal.h" |
| #include "jni_helper.h" |
| |
| #define REPLY_BUF_SIZE 4096 // wpa_supplicant's maximum size. |
| #define EVENT_BUF_SIZE 2048 |
| |
| namespace android { |
| |
| static jint DBG = false; |
| |
| static bool doCommand(JNIEnv* env, jstring javaCommand, |
| char* reply, size_t reply_len) { |
| ScopedUtfChars command(env, javaCommand); |
| if (command.c_str() == NULL) { |
| return false; // ScopedUtfChars already threw on error. |
| } |
| |
| if (DBG) { |
| ALOGD("doCommand: %s", command.c_str()); |
| } |
| |
| --reply_len; // Ensure we have room to add NUL termination. |
| if (::wifi_command(command.c_str(), reply, &reply_len) != 0) { |
| return false; |
| } |
| |
| // Strip off trailing newline. |
| if (reply_len > 0 && reply[reply_len-1] == '\n') { |
| reply[reply_len-1] = '\0'; |
| } else { |
| reply[reply_len] = '\0'; |
| } |
| return true; |
| } |
| |
| static jint doIntCommand(JNIEnv* env, jstring javaCommand) { |
| char reply[REPLY_BUF_SIZE]; |
| if (!doCommand(env, javaCommand, reply, sizeof(reply))) { |
| return -1; |
| } |
| return static_cast<jint>(atoi(reply)); |
| } |
| |
| static jboolean doBooleanCommand(JNIEnv* env, jstring javaCommand) { |
| char reply[REPLY_BUF_SIZE]; |
| if (!doCommand(env, javaCommand, reply, sizeof(reply))) { |
| return JNI_FALSE; |
| } |
| return (strcmp(reply, "OK") == 0); |
| } |
| |
| // Send a command to the supplicant, and return the reply as a String. |
| static jstring doStringCommand(JNIEnv* env, jstring javaCommand) { |
| char reply[REPLY_BUF_SIZE]; |
| if (!doCommand(env, javaCommand, reply, sizeof(reply))) { |
| return NULL; |
| } |
| return env->NewStringUTF(reply); |
| } |
| |
| static jboolean android_net_wifi_isDriverLoaded(JNIEnv* env, jobject) |
| { |
| return (::is_wifi_driver_loaded() == 1); |
| } |
| |
| static jboolean android_net_wifi_loadDriver(JNIEnv* env, jobject) |
| { |
| return (::wifi_load_driver() == 0); |
| } |
| |
| static jboolean android_net_wifi_unloadDriver(JNIEnv* env, jobject) |
| { |
| return (::wifi_unload_driver() == 0); |
| } |
| |
| static jboolean android_net_wifi_startSupplicant(JNIEnv* env, jobject, jboolean p2pSupported) |
| { |
| return (::wifi_start_supplicant(p2pSupported) == 0); |
| } |
| |
| static jboolean android_net_wifi_killSupplicant(JNIEnv* env, jobject, jboolean p2pSupported) |
| { |
| return (::wifi_stop_supplicant(p2pSupported) == 0); |
| } |
| |
| static jboolean android_net_wifi_connectToSupplicant(JNIEnv* env, jobject) |
| { |
| return (::wifi_connect_to_supplicant() == 0); |
| } |
| |
| static void android_net_wifi_closeSupplicantConnection(JNIEnv* env, jobject) |
| { |
| ::wifi_close_supplicant_connection(); |
| } |
| |
| static jstring android_net_wifi_waitForEvent(JNIEnv* env, jobject) |
| { |
| char buf[EVENT_BUF_SIZE]; |
| int nread = ::wifi_wait_for_event(buf, sizeof buf); |
| if (nread > 0) { |
| return env->NewStringUTF(buf); |
| } else { |
| return NULL; |
| } |
| } |
| |
| static jboolean android_net_wifi_doBooleanCommand(JNIEnv* env, jobject, jstring javaCommand) { |
| return doBooleanCommand(env, javaCommand); |
| } |
| |
| static jint android_net_wifi_doIntCommand(JNIEnv* env, jobject, jstring javaCommand) { |
| return doIntCommand(env, javaCommand); |
| } |
| |
| static jstring android_net_wifi_doStringCommand(JNIEnv* env, jobject, jstring javaCommand) { |
| return doStringCommand(env,javaCommand); |
| } |
| |
| /* wifi_hal <==> WifiNative bridge */ |
| |
| static jclass mCls; /* saved WifiNative object */ |
| static JavaVM *mVM; /* saved JVM pointer */ |
| |
| static const char *WifiHandleVarName = "sWifiHalHandle"; |
| static const char *WifiIfaceHandleVarName = "sWifiIfaceHandles"; |
| static jmethodID OnScanResultsMethodID; |
| |
| static JNIEnv *getEnv() { |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| return env; |
| } |
| |
| static wifi_handle getWifiHandle(JNIEnv *env, jclass cls) { |
| return (wifi_handle) getStaticLongField(env, cls, WifiHandleVarName); |
| } |
| |
| static wifi_interface_handle getIfaceHandle(JNIEnv *env, jclass cls, jint index) { |
| return (wifi_interface_handle) getStaticLongArrayField(env, cls, WifiIfaceHandleVarName, index); |
| } |
| |
| static jobject createScanResult(JNIEnv *env, wifi_scan_result *result) { |
| |
| // ALOGD("creating scan result"); |
| |
| jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); |
| if (scanResult == NULL) { |
| ALOGE("Error in creating scan result"); |
| return NULL; |
| } |
| |
| // ALOGD("setting SSID to %s", result.ssid); |
| setStringField(env, scanResult, "SSID", result->ssid); |
| |
| char bssid[32]; |
| sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result->bssid[0], result->bssid[1], |
| result->bssid[2], result->bssid[3], result->bssid[4], result->bssid[5]); |
| |
| setStringField(env, scanResult, "BSSID", bssid); |
| |
| setIntField(env, scanResult, "level", result->rssi); |
| setIntField(env, scanResult, "frequency", result->channel); |
| setLongField(env, scanResult, "timestamp", result->ts); |
| |
| return scanResult; |
| } |
| |
| static jboolean android_net_wifi_startHal(JNIEnv* env, jclass cls) { |
| wifi_handle halHandle = getWifiHandle(env, cls); |
| |
| if (halHandle == NULL) { |
| wifi_error res = wifi_initialize(&halHandle); |
| if (res == WIFI_SUCCESS) { |
| setStaticLongField(env, cls, WifiHandleVarName, (jlong)halHandle); |
| ALOGD("Did set static halHandle = %p", halHandle); |
| } |
| env->GetJavaVM(&mVM); |
| mCls = (jclass) env->NewGlobalRef(cls); |
| ALOGD("halHandle = %p, mVM = %p, mCls = %p", halHandle, mVM, mCls); |
| return res == WIFI_SUCCESS; |
| } else { |
| return true; |
| } |
| } |
| |
| void android_net_wifi_hal_cleaned_up_handler(wifi_handle handle) { |
| ALOGD("In wifi cleaned up handler"); |
| |
| JNIEnv * env = getEnv(); |
| setStaticLongField(env, mCls, WifiHandleVarName, 0); |
| env->DeleteGlobalRef(mCls); |
| mCls = NULL; |
| mVM = NULL; |
| } |
| |
| static void android_net_wifi_stopHal(JNIEnv* env, jclass cls) { |
| ALOGD("In wifi stop Hal"); |
| wifi_handle halHandle = getWifiHandle(env, cls); |
| wifi_cleanup(halHandle, android_net_wifi_hal_cleaned_up_handler); |
| } |
| |
| static void android_net_wifi_waitForHalEvents(JNIEnv* env, jclass cls) { |
| |
| ALOGD("waitForHalEvents called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| wifi_handle halHandle = getWifiHandle(env, cls); |
| wifi_event_loop(halHandle); |
| } |
| |
| static int android_net_wifi_getInterfaces(JNIEnv *env, jclass cls) { |
| int n = 0; |
| wifi_handle halHandle = getWifiHandle(env, cls); |
| wifi_interface_handle *ifaceHandles = NULL; |
| int result = wifi_get_ifaces(halHandle, &n, &ifaceHandles); |
| if (result < 0) { |
| return result; |
| } |
| |
| if (n < 0) { |
| THROW(env, "android_net_wifi_getInterfaces no interfaces"); |
| return 0; |
| } |
| |
| if (ifaceHandles == NULL) { |
| THROW(env, "android_net_wifi_getInterfaces null interface array"); |
| return 0; |
| } |
| |
| if (n > 8) { |
| THROW(env, "Too many interfaces"); |
| return 0; |
| } |
| |
| jlongArray array = (env)->NewLongArray(n); |
| if (array == NULL) { |
| THROW(env, "Error in accessing array"); |
| return 0; |
| } |
| |
| jlong elems[8]; |
| for (int i = 0; i < n; i++) { |
| elems[i] = reinterpret_cast<jlong>(ifaceHandles[i]); |
| } |
| env->SetLongArrayRegion(array, 0, n, elems); |
| setStaticLongArrayField(env, cls, WifiIfaceHandleVarName, array); |
| |
| return (result < 0) ? result : n; |
| } |
| |
| static jstring android_net_wifi_getInterfaceName(JNIEnv *env, jclass cls, jint i) { |
| char buf[EVENT_BUF_SIZE]; |
| |
| jlong value = getStaticLongArrayField(env, cls, WifiIfaceHandleVarName, i); |
| wifi_interface_handle handle = (wifi_interface_handle) value; |
| int result = ::wifi_get_iface_name(handle, buf, sizeof(buf)); |
| if (result < 0) { |
| return NULL; |
| } else { |
| return env->NewStringUTF(buf); |
| } |
| } |
| |
| |
| static void onScanResultsAvailable(wifi_request_id id, unsigned num_results) { |
| |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onScanResultsAvailable called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| reportEvent(env, mCls, "onScanResultsAvailable", "(I)V", id); |
| } |
| |
| static void onScanEvent(wifi_scan_event event, unsigned status) { |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onScanStatus called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| reportEvent(env, mCls, "onScanStatus", "(I)V", status); |
| } |
| |
| static void onFullScanResult(wifi_request_id id, wifi_scan_result *result) { |
| |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onFullScanResult called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| jobject scanResult = createScanResult(env, result); |
| |
| ALOGD("Creating a byte array of length %d", result->ie_length); |
| |
| jbyteArray elements = env->NewByteArray(result->ie_length); |
| if (elements == NULL) { |
| ALOGE("Error in allocating array"); |
| return; |
| } |
| |
| ALOGE("Setting byte array"); |
| |
| jbyte *bytes = (jbyte *)&(result->ie_data[0]); |
| env->SetByteArrayRegion(elements, 0, result->ie_length, bytes); |
| |
| ALOGE("Returning result"); |
| |
| reportEvent(env, mCls, "onFullScanResult", "(ILandroid/net/wifi/ScanResult;[B)V", id, |
| scanResult, elements); |
| |
| env->DeleteLocalRef(scanResult); |
| env->DeleteLocalRef(elements); |
| } |
| |
| static jboolean android_net_wifi_startScan( |
| JNIEnv *env, jclass cls, jint iface, jint id, jobject settings) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("starting scan on interface[%d] = %p", iface, handle); |
| |
| wifi_scan_cmd_params params; |
| memset(¶ms, 0, sizeof(params)); |
| |
| params.base_period = getIntField(env, settings, "base_period_ms"); |
| params.max_ap_per_scan = getIntField(env, settings, "max_ap_per_scan"); |
| params.report_threshold = getIntField(env, settings, "report_threshold"); |
| |
| ALOGD("Initialized common fields %d, %d, %d", params.base_period, |
| params.max_ap_per_scan, params.report_threshold); |
| |
| const char *bucket_array_type = "[Lcom/android/server/wifi/WifiNative$BucketSettings;"; |
| const char *channel_array_type = "[Lcom/android/server/wifi/WifiNative$ChannelSettings;"; |
| |
| jobjectArray buckets = (jobjectArray)getObjectField(env, settings, "buckets", bucket_array_type); |
| params.num_buckets = getIntField(env, settings, "num_buckets"); |
| |
| ALOGD("Initialized num_buckets to %d", params.num_buckets); |
| |
| for (int i = 0; i < params.num_buckets; i++) { |
| jobject bucket = getObjectArrayField(env, settings, "buckets", bucket_array_type, i); |
| |
| params.buckets[i].bucket = getIntField(env, bucket, "bucket"); |
| params.buckets[i].band = (wifi_band) getIntField(env, bucket, "band"); |
| params.buckets[i].period = getIntField(env, bucket, "period_ms"); |
| |
| ALOGD("Initialized common bucket fields %d:%d:%d", params.buckets[i].bucket, |
| params.buckets[i].band, params.buckets[i].period); |
| |
| int report_events = getIntField(env, bucket, "report_events"); |
| params.buckets[i].report_events = report_events; |
| |
| ALOGD("Initialized report events to %d", params.buckets[i].report_events); |
| |
| jobjectArray channels = (jobjectArray)getObjectField( |
| env, bucket, "channels", channel_array_type); |
| |
| params.buckets[i].num_channels = getIntField(env, bucket, "num_channels"); |
| ALOGD("Initialized num_channels to %d", params.buckets[i].num_channels); |
| |
| for (int j = 0; j < params.buckets[i].num_channels; j++) { |
| jobject channel = getObjectArrayField(env, bucket, "channels", channel_array_type, j); |
| |
| params.buckets[i].channels[j].channel = getIntField(env, channel, "frequency"); |
| params.buckets[i].channels[j].dwellTimeMs = getIntField(env, channel, "dwell_time_ms"); |
| |
| bool passive = getBoolField(env, channel, "passive"); |
| params.buckets[i].channels[j].passive = (passive ? 1 : 0); |
| |
| ALOGD("Initialized channel %d", params.buckets[i].channels[j].channel); |
| } |
| } |
| |
| ALOGD("Initialized all fields"); |
| |
| wifi_scan_result_handler handler; |
| memset(&handler, 0, sizeof(handler)); |
| handler.on_scan_results_available = &onScanResultsAvailable; |
| handler.on_full_scan_result = &onFullScanResult; |
| handler.on_scan_event = &onScanEvent; |
| |
| return wifi_start_gscan(id, handle, params, handler) == WIFI_SUCCESS; |
| } |
| |
| static jboolean android_net_wifi_stopScan(JNIEnv *env, jclass cls, jint iface, jint id) { |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("stopping scan on interface[%d] = %p", iface, handle); |
| |
| return wifi_stop_gscan(id, handle) == WIFI_SUCCESS; |
| } |
| |
| static jobject android_net_wifi_getScanResults( |
| JNIEnv *env, jclass cls, jint iface, jboolean flush) { |
| |
| wifi_scan_result results[256]; |
| int num_results = 256; |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("getting scan results on interface[%d] = %p", iface, handle); |
| |
| int result = wifi_get_cached_gscan_results(handle, 1, num_results, results, &num_results); |
| if (result == WIFI_SUCCESS) { |
| jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); |
| if (clsScanResult == NULL) { |
| ALOGE("Error in accessing class"); |
| return NULL; |
| } |
| |
| jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); |
| if (scanResults == NULL) { |
| ALOGE("Error in allocating array"); |
| return NULL; |
| } |
| |
| for (int i = 0; i < num_results; i++) { |
| |
| jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); |
| if (scanResult == NULL) { |
| ALOGE("Error in creating scan result"); |
| return NULL; |
| } |
| |
| setStringField(env, scanResult, "SSID", results[i].ssid); |
| |
| char bssid[32]; |
| sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", results[i].bssid[0], |
| results[i].bssid[1], results[i].bssid[2], results[i].bssid[3], |
| results[i].bssid[4], results[i].bssid[5]); |
| |
| setStringField(env, scanResult, "BSSID", bssid); |
| |
| setIntField(env, scanResult, "level", results[i].rssi); |
| setIntField(env, scanResult, "frequency", results[i].channel); |
| setLongField(env, scanResult, "timestamp", results[i].ts); |
| |
| env->SetObjectArrayElement(scanResults, i, scanResult); |
| env->DeleteLocalRef(scanResult); |
| } |
| |
| return scanResults; |
| } else { |
| return NULL; |
| } |
| } |
| |
| |
| static jboolean android_net_wifi_getScanCapabilities( |
| JNIEnv *env, jclass cls, jint iface, jobject capabilities) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("getting scan capabilities on interface[%d] = %p", iface, handle); |
| |
| wifi_gscan_capabilities c; |
| memset(&c, 0, sizeof(c)); |
| int result = wifi_get_gscan_capabilities(handle, &c); |
| if (result != WIFI_SUCCESS) { |
| ALOGD("failed to get capabilities : %d", result); |
| return JNI_FALSE; |
| } |
| |
| setIntField(env, capabilities, "max_scan_cache_size", c.max_scan_cache_size); |
| setIntField(env, capabilities, "max_scan_buckets", c.max_scan_buckets); |
| setIntField(env, capabilities, "max_ap_cache_per_scan", c.max_ap_cache_per_scan); |
| setIntField(env, capabilities, "max_rssi_sample_size", c.max_rssi_sample_size); |
| setIntField(env, capabilities, "max_scan_reporting_threshold", c.max_scan_reporting_threshold); |
| setIntField(env, capabilities, "max_hotlist_aps", c.max_hotlist_aps); |
| setIntField(env, capabilities, "max_significant_wifi_change_aps", |
| c.max_significant_wifi_change_aps); |
| |
| return JNI_TRUE; |
| } |
| |
| |
| static byte parseHexChar(char ch) { |
| if (isdigit(ch)) |
| return ch - '0'; |
| else if ('A' <= ch && ch <= 'F') |
| return ch - 'A' + 10; |
| else if ('a' <= ch && ch <= 'f') |
| return ch - 'a' + 10; |
| else { |
| ALOGE("invalid character in bssid %c", ch); |
| return 0; |
| } |
| } |
| |
| static byte parseHexByte(const char * &str) { |
| byte b = parseHexChar(str[0]); |
| if (str[1] == ':' || str[1] == '\0') { |
| str += 2; |
| return b; |
| } else { |
| b = b << 4 | parseHexChar(str[1]); |
| str += 3; |
| return b; |
| } |
| } |
| |
| static void parseMacAddress(const char *str, mac_addr addr) { |
| addr[0] = parseHexByte(str); |
| addr[1] = parseHexByte(str); |
| addr[2] = parseHexByte(str); |
| addr[3] = parseHexByte(str); |
| addr[4] = parseHexByte(str); |
| addr[5] = parseHexByte(str); |
| } |
| |
| static bool parseMacAddress(JNIEnv *env, jobject obj, mac_addr addr) { |
| jstring macAddrString = (jstring) getObjectField( |
| env, obj, "bssid", "Ljava/lang/String;"); |
| |
| if (macAddrString == NULL) { |
| ALOGE("Error getting bssid field"); |
| return false; |
| } |
| |
| const char *bssid = env->GetStringUTFChars(macAddrString, NULL); |
| if (bssid == NULL) { |
| ALOGE("Error getting bssid"); |
| return false; |
| } |
| |
| parseMacAddress(bssid, addr); |
| return true; |
| } |
| |
| static void onHotlistApFound(wifi_request_id id, |
| unsigned num_results, wifi_scan_result *results) { |
| |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onHotlistApFound called, vm = %p, obj = %p, env = %p, num_results = %d", |
| mVM, mCls, env, num_results); |
| |
| jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); |
| if (clsScanResult == NULL) { |
| ALOGE("Error in accessing class"); |
| return; |
| } |
| |
| jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); |
| if (scanResults == NULL) { |
| ALOGE("Error in allocating array"); |
| return; |
| } |
| |
| for (unsigned i = 0; i < num_results; i++) { |
| |
| jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); |
| if (scanResult == NULL) { |
| ALOGE("Error in creating scan result"); |
| return; |
| } |
| |
| setStringField(env, scanResult, "SSID", results[i].ssid); |
| |
| char bssid[32]; |
| sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", results[i].bssid[0], results[i].bssid[1], |
| results[i].bssid[2], results[i].bssid[3], results[i].bssid[4], results[i].bssid[5]); |
| |
| setStringField(env, scanResult, "BSSID", bssid); |
| |
| setIntField(env, scanResult, "level", results[i].rssi); |
| setIntField(env, scanResult, "frequency", results[i].channel); |
| setLongField(env, scanResult, "timestamp", results[i].ts); |
| |
| env->SetObjectArrayElement(scanResults, i, scanResult); |
| |
| ALOGD("Found AP %32s %s", results[i].ssid, bssid); |
| } |
| |
| reportEvent(env, mCls, "onHotlistApFound", "(I[Landroid/net/wifi/ScanResult;)V", |
| id, scanResults); |
| } |
| |
| static jboolean android_net_wifi_setHotlist( |
| JNIEnv *env, jclass cls, jint iface, jint id, jobject ap) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("setting hotlist on interface[%d] = %p", iface, handle); |
| |
| wifi_bssid_hotlist_params params; |
| memset(¶ms, 0, sizeof(params)); |
| |
| jobjectArray array = (jobjectArray) getObjectField(env, ap, |
| "bssidInfos", "[Landroid/net/wifi/WifiScanner$BssidInfo;"); |
| params.num_ap = env->GetArrayLength(array); |
| |
| if (params.num_ap == 0) { |
| ALOGE("Error in accesing array"); |
| return false; |
| } |
| |
| for (int i = 0; i < params.num_ap; i++) { |
| jobject objAp = env->GetObjectArrayElement(array, i); |
| |
| jstring macAddrString = (jstring) getObjectField( |
| env, objAp, "bssid", "Ljava/lang/String;"); |
| if (macAddrString == NULL) { |
| ALOGE("Error getting bssid field"); |
| return false; |
| } |
| |
| const char *bssid = env->GetStringUTFChars(macAddrString, NULL); |
| if (bssid == NULL) { |
| ALOGE("Error getting bssid"); |
| return false; |
| } |
| parseMacAddress(bssid, params.ap[i].bssid); |
| |
| mac_addr addr; |
| memcpy(addr, params.ap[i].bssid, sizeof(mac_addr)); |
| |
| char bssidOut[32]; |
| sprintf(bssidOut, "%0x:%0x:%0x:%0x:%0x:%0x", addr[0], addr[1], |
| addr[2], addr[3], addr[4], addr[5]); |
| |
| ALOGD("Added bssid %s", bssidOut); |
| |
| params.ap[i].low = getIntField(env, objAp, "low"); |
| params.ap[i].high = getIntField(env, objAp, "high"); |
| } |
| |
| wifi_hotlist_ap_found_handler handler; |
| memset(&handler, 0, sizeof(handler)); |
| |
| handler.on_hotlist_ap_found = &onHotlistApFound; |
| return wifi_set_bssid_hotlist(id, handle, params, handler) == WIFI_SUCCESS; |
| } |
| |
| static jboolean android_net_wifi_resetHotlist( |
| JNIEnv *env, jclass cls, jint iface, jint id) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("resetting hotlist on interface[%d] = %p", iface, handle); |
| |
| return wifi_reset_bssid_hotlist(id, handle) == WIFI_SUCCESS; |
| } |
| |
| void onSignificantWifiChange(wifi_request_id id, |
| unsigned num_results, wifi_significant_change_result **results) { |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onSignificantWifiChange called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| jclass clsScanResult = (env)->FindClass("android/net/wifi/ScanResult"); |
| if (clsScanResult == NULL) { |
| ALOGE("Error in accessing class"); |
| return; |
| } |
| |
| jobjectArray scanResults = env->NewObjectArray(num_results, clsScanResult, NULL); |
| if (scanResults == NULL) { |
| ALOGE("Error in allocating array"); |
| return; |
| } |
| |
| for (unsigned i = 0; i < num_results; i++) { |
| |
| wifi_significant_change_result result = *(results[i]); |
| |
| jobject scanResult = createObject(env, "android/net/wifi/ScanResult"); |
| if (scanResult == NULL) { |
| ALOGE("Error in creating scan result"); |
| return; |
| } |
| |
| // setStringField(env, scanResult, "SSID", results[i].ssid); |
| |
| char bssid[32]; |
| sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result.bssid[0], result.bssid[1], |
| result.bssid[2], result.bssid[3], result.bssid[4], result.bssid[5]); |
| |
| setStringField(env, scanResult, "BSSID", bssid); |
| |
| setIntField(env, scanResult, "level", result.rssi[0]); |
| setIntField(env, scanResult, "frequency", result.channel); |
| // setLongField(env, scanResult, "timestamp", result.ts); |
| |
| env->SetObjectArrayElement(scanResults, i, scanResult); |
| } |
| |
| reportEvent(env, mCls, "onSignificantWifiChange", "(I[Landroid/net/wifi/ScanResult;)V", |
| id, scanResults); |
| |
| } |
| |
| static jboolean android_net_wifi_trackSignificantWifiChange( |
| JNIEnv *env, jclass cls, jint iface, jint id, jobject settings) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("tracking significant wifi change on interface[%d] = %p", iface, handle); |
| |
| wifi_significant_change_params params; |
| memset(¶ms, 0, sizeof(params)); |
| |
| params.rssi_sample_size = getIntField(env, settings, "rssiSampleSize"); |
| params.lost_ap_sample_size = getIntField(env, settings, "lostApSampleSize"); |
| params.min_breaching = getIntField(env, settings, "minApsBreachingThreshold"); |
| |
| const char *bssid_info_array_type = "[Landroid/net/wifi/WifiScanner$BssidInfo;"; |
| jobjectArray bssids = (jobjectArray)getObjectField( |
| env, settings, "bssidInfos", bssid_info_array_type); |
| params.num_ap = env->GetArrayLength(bssids); |
| |
| if (params.num_ap == 0) { |
| ALOGE("Error in accessing array"); |
| return false; |
| } |
| |
| ALOGD("Initialized common fields %d, %d, %d, %d", params.rssi_sample_size, |
| params.lost_ap_sample_size, params.min_breaching, params.num_ap); |
| |
| for (int i = 0; i < params.num_ap; i++) { |
| jobject objAp = env->GetObjectArrayElement(bssids, i); |
| |
| jstring macAddrString = (jstring) getObjectField( |
| env, objAp, "bssid", "Ljava/lang/String;"); |
| if (macAddrString == NULL) { |
| ALOGE("Error getting bssid field"); |
| return false; |
| } |
| |
| const char *bssid = env->GetStringUTFChars(macAddrString, NULL); |
| if (bssid == NULL) { |
| ALOGE("Error getting bssid"); |
| return false; |
| } |
| |
| mac_addr addr; |
| parseMacAddress(bssid, addr); |
| memcpy(params.ap[i].bssid, addr, sizeof(mac_addr)); |
| |
| char bssidOut[32]; |
| sprintf(bssidOut, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0], addr[1], |
| addr[2], addr[3], addr[4], addr[5]); |
| |
| params.ap[i].low = getIntField(env, objAp, "low"); |
| params.ap[i].high = getIntField(env, objAp, "high"); |
| |
| ALOGD("Added bssid %s, [%04d, %04d]", bssidOut, params.ap[i].low, params.ap[i].high); |
| } |
| |
| ALOGD("Added %d bssids", params.num_ap); |
| |
| wifi_significant_change_handler handler; |
| memset(&handler, 0, sizeof(handler)); |
| |
| handler.on_significant_change = &onSignificantWifiChange; |
| return wifi_set_significant_change_handler(id, handle, params, handler) == WIFI_SUCCESS; |
| } |
| |
| static jboolean android_net_wifi_untrackSignificantWifiChange( |
| JNIEnv *env, jclass cls, jint iface, jint id) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("resetting significant wifi change on interface[%d] = %p", iface, handle); |
| |
| return wifi_reset_significant_change_handler(id, handle) == WIFI_SUCCESS; |
| } |
| |
| wifi_iface_stat link_stat; |
| |
| void onLinkStatsResults(wifi_request_id id, wifi_iface_stat *iface_stat, |
| int num_radios, wifi_radio_stat *radio_stat) |
| { |
| memcpy(&link_stat, iface_stat, sizeof(wifi_iface_stat)); |
| } |
| |
| static jobject android_net_wifi_getLinkLayerStats (JNIEnv *env, jclass cls, jint iface) { |
| |
| wifi_stats_result_handler handler; |
| memset(&handler, 0, sizeof(handler)); |
| handler.on_link_stats_results = &onLinkStatsResults; |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| int result = wifi_get_link_stats(0, handle, handler); |
| if (result < 0) { |
| ALOGE("failed to get link statistics\n"); |
| return NULL; |
| } |
| |
| jobject wifiLinkLayerStats = createObject(env, "android/net/wifi/WifiLinkLayerStats"); |
| if (wifiLinkLayerStats == NULL) { |
| ALOGE("Error in allocating wifiLinkLayerStats"); |
| return NULL; |
| } |
| |
| setIntField(env, wifiLinkLayerStats, "beacon_rx", link_stat.beacon_rx); |
| setIntField(env, wifiLinkLayerStats, "rssi_mgmt", link_stat.rssi_mgmt); |
| setLongField(env, wifiLinkLayerStats, "rxmpdu_be", link_stat.ac[WIFI_AC_BE].rx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "rxmpdu_bk", link_stat.ac[WIFI_AC_BK].rx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "rxmpdu_vi", link_stat.ac[WIFI_AC_VI].rx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "rxmpdu_vo", link_stat.ac[WIFI_AC_VO].rx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "txmpdu_be", link_stat.ac[WIFI_AC_BE].tx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "txmpdu_bk", link_stat.ac[WIFI_AC_BK].tx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "txmpdu_vi", link_stat.ac[WIFI_AC_VI].tx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "txmpdu_vo", link_stat.ac[WIFI_AC_VO].tx_mpdu); |
| setLongField(env, wifiLinkLayerStats, "lostmpdu_be", link_stat.ac[WIFI_AC_BE].mpdu_lost); |
| setLongField(env, wifiLinkLayerStats, "lostmpdu_bk", link_stat.ac[WIFI_AC_BK].mpdu_lost); |
| setLongField(env, wifiLinkLayerStats, "lostmpdu_vi", link_stat.ac[WIFI_AC_VI].mpdu_lost); |
| setLongField(env, wifiLinkLayerStats, "lostmpdu_vo", link_stat.ac[WIFI_AC_VO].mpdu_lost); |
| setLongField(env, wifiLinkLayerStats, "retries_be", link_stat.ac[WIFI_AC_BE].retries); |
| setLongField(env, wifiLinkLayerStats, "retries_bk", link_stat.ac[WIFI_AC_BK].retries); |
| setLongField(env, wifiLinkLayerStats, "retries_vi", link_stat.ac[WIFI_AC_VI].retries); |
| setLongField(env, wifiLinkLayerStats, "retries_vo", link_stat.ac[WIFI_AC_VO].retries); |
| |
| return wifiLinkLayerStats; |
| } |
| |
| static jint android_net_wifi_getSupportedFeatures(JNIEnv *env, jclass cls, jint iface) { |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| feature_set set = 0; |
| |
| wifi_error result = WIFI_SUCCESS; |
| /* |
| set = WIFI_FEATURE_INFRA |
| | WIFI_FEATURE_INFRA_5G |
| | WIFI_FEATURE_HOTSPOT |
| | WIFI_FEATURE_P2P |
| | WIFI_FEATURE_SOFT_AP |
| | WIFI_FEATURE_GSCAN |
| | WIFI_FEATURE_PNO |
| | WIFI_FEATURE_TDLS |
| | WIFI_FEATURE_EPR; |
| */ |
| |
| result = wifi_get_supported_feature_set(handle, &set); |
| if (result == WIFI_SUCCESS) { |
| /* Temporary workaround for RTT capability */ |
| set = set | WIFI_FEATURE_D2AP_RTT; |
| ALOGD("wifi_get_supported_feature_set returned set = 0x%x", set); |
| return set; |
| } else { |
| ALOGD("wifi_get_supported_feature_set returned error = 0x%x", result); |
| return 0; |
| } |
| } |
| |
| static void onRttResults(wifi_request_id id, unsigned num_results, wifi_rtt_result results[]) { |
| JNIEnv *env = NULL; |
| mVM->AttachCurrentThread(&env, NULL); |
| |
| ALOGD("onRttResults called, vm = %p, obj = %p, env = %p", mVM, mCls, env); |
| |
| jclass clsRttResult = (env)->FindClass("android/net/wifi/RttManager$RttResult"); |
| if (clsRttResult == NULL) { |
| ALOGE("Error in accessing class"); |
| return; |
| } |
| |
| jobjectArray rttResults = env->NewObjectArray(num_results, clsRttResult, NULL); |
| if (rttResults == NULL) { |
| ALOGE("Error in allocating array"); |
| return; |
| } |
| |
| for (unsigned i = 0; i < num_results; i++) { |
| |
| wifi_rtt_result& result = results[i]; |
| |
| jobject rttResult = createObject(env, "android/net/wifi/RttManager$RttResult"); |
| if (rttResult == NULL) { |
| ALOGE("Error in creating rtt result"); |
| return; |
| } |
| |
| char bssid[32]; |
| sprintf(bssid, "%02x:%02x:%02x:%02x:%02x:%02x", result.addr[0], result.addr[1], |
| result.addr[2], result.addr[3], result.addr[4], result.addr[5]); |
| |
| setStringField(env, rttResult, "bssid", bssid); |
| setIntField(env, rttResult, "status", result.status); |
| setIntField(env, rttResult, "requestType", result.type); |
| setLongField(env, rttResult, "ts", result.ts); |
| setIntField(env, rttResult, "rssi", result.rssi); |
| setIntField(env, rttResult, "rssi_spread", result.rssi_spread); |
| setIntField(env, rttResult, "tx_rate", result.tx_rate.bitrate); |
| setLongField(env, rttResult, "rtt_ns", result.rtt); |
| setLongField(env, rttResult, "rtt_sd_ns", result.rtt_sd); |
| setLongField(env, rttResult, "rtt_spread_ns", result.rtt_spread); |
| setIntField(env, rttResult, "distance_cm", result.distance); |
| setIntField(env, rttResult, "distance_sd_cm", result.distance_sd); |
| setIntField(env, rttResult, "distance_spread_cm", result.distance_spread); |
| |
| env->SetObjectArrayElement(rttResults, i, rttResult); |
| } |
| |
| reportEvent(env, mCls, "onRttResults", "(I[Landroid/net/wifi/RttManager$RttResult;)V", |
| id, rttResults); |
| } |
| |
| const int MaxRttConfigs = 16; |
| |
| static jboolean android_net_wifi_requestRange( |
| JNIEnv *env, jclass cls, jint iface, jint id, jobject params) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("sending rtt request [%d] = %p", id, handle); |
| |
| wifi_rtt_config configs[MaxRttConfigs]; |
| memset(&configs, 0, sizeof(configs)); |
| |
| int len = env->GetArrayLength((jobjectArray)params); |
| if (len > MaxRttConfigs) { |
| return false; |
| } |
| |
| for (int i = 0; i < len; i++) { |
| |
| jobject param = env->GetObjectArrayElement((jobjectArray)params, i); |
| if (param == NULL) { |
| ALOGD("could not get element %d", i); |
| continue; |
| } |
| |
| wifi_rtt_config &config = configs[i]; |
| |
| parseMacAddress(env, param, config.addr); |
| config.type = (wifi_rtt_type)getIntField(env, param, "requestType"); |
| config.peer = (wifi_peer_type)getIntField(env, param, "deviceType"); |
| config.channel.center_freq = getIntField(env, param, "frequency"); |
| config.channel.width = (wifi_channel_width)getIntField(env, param, "channelWidth"); |
| config.num_samples_per_measurement = getIntField(env, param, "num_samples"); |
| config.num_retries_per_measurement = getIntField(env, param, "num_retries"); |
| } |
| |
| wifi_rtt_event_handler handler; |
| handler.on_rtt_results = &onRttResults; |
| |
| return wifi_rtt_range_request(id, handle, len, configs, handler) == WIFI_SUCCESS; |
| } |
| |
| static jboolean android_net_wifi_cancelRange( |
| JNIEnv *env, jclass cls, jint iface, int id, jobject params) { |
| |
| wifi_interface_handle handle = getIfaceHandle(env, cls, iface); |
| ALOGD("cancelling rtt request [%d] = %p", id, handle); |
| |
| mac_addr addrs[MaxRttConfigs]; |
| memset(&addrs, 0, sizeof(addrs)); |
| |
| int len = env->GetArrayLength((jobjectArray)params); |
| if (len > MaxRttConfigs) { |
| return false; |
| } |
| |
| for (int i = 0; i < len; i++) { |
| |
| jobject param = env->GetObjectArrayElement((jobjectArray)params, i); |
| if (param == NULL) { |
| ALOGD("could not get element %d", i); |
| continue; |
| } |
| |
| parseMacAddress(env, param, addrs[i]); |
| } |
| |
| return wifi_rtt_range_cancel(id, handle, len, addrs) == WIFI_SUCCESS; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| /* |
| * JNI registration. |
| */ |
| static JNINativeMethod gWifiMethods[] = { |
| /* name, signature, funcPtr */ |
| |
| { "loadDriver", "()Z", (void *)android_net_wifi_loadDriver }, |
| { "isDriverLoaded", "()Z", (void *)android_net_wifi_isDriverLoaded }, |
| { "unloadDriver", "()Z", (void *)android_net_wifi_unloadDriver }, |
| { "startSupplicant", "(Z)Z", (void *)android_net_wifi_startSupplicant }, |
| { "killSupplicant", "(Z)Z", (void *)android_net_wifi_killSupplicant }, |
| { "connectToSupplicantNative", "()Z", (void *)android_net_wifi_connectToSupplicant }, |
| { "closeSupplicantConnectionNative", "()V", |
| (void *)android_net_wifi_closeSupplicantConnection }, |
| { "waitForEventNative", "()Ljava/lang/String;", (void*)android_net_wifi_waitForEvent }, |
| { "doBooleanCommandNative", "(Ljava/lang/String;)Z", (void*)android_net_wifi_doBooleanCommand }, |
| { "doIntCommandNative", "(Ljava/lang/String;)I", (void*)android_net_wifi_doIntCommand }, |
| { "doStringCommandNative", "(Ljava/lang/String;)Ljava/lang/String;", |
| (void*) android_net_wifi_doStringCommand }, |
| { "startHalNative", "()Z", (void*) android_net_wifi_startHal }, |
| { "stopHalNative", "()V", (void*) android_net_wifi_stopHal }, |
| { "waitForHalEventNative", "()V", (void*) android_net_wifi_waitForHalEvents }, |
| { "getInterfacesNative", "()I", (void*) android_net_wifi_getInterfaces}, |
| { "getInterfaceNameNative", "(I)Ljava/lang/String;", (void*) android_net_wifi_getInterfaceName}, |
| { "getScanCapabilitiesNative", "(ILcom/android/server/wifi/WifiNative$ScanCapabilities;)Z", |
| (void *) android_net_wifi_getScanCapabilities}, |
| { "startScanNative", "(IILcom/android/server/wifi/WifiNative$ScanSettings;)Z", |
| (void*) android_net_wifi_startScan}, |
| { "stopScanNative", "(II)Z", (void*) android_net_wifi_stopScan}, |
| { "getScanResultsNative", "(IZ)[Landroid/net/wifi/ScanResult;", |
| (void *) android_net_wifi_getScanResults}, |
| { "setHotlistNative", "(IILandroid/net/wifi/WifiScanner$HotlistSettings;)Z", |
| (void*) android_net_wifi_setHotlist}, |
| { "resetHotlistNative", "(II)Z", (void*) android_net_wifi_resetHotlist}, |
| { "trackSignificantWifiChangeNative", "(IILandroid/net/wifi/WifiScanner$WifiChangeSettings;)Z", |
| (void*) android_net_wifi_trackSignificantWifiChange}, |
| { "untrackSignificantWifiChangeNative", "(II)Z", |
| (void*) android_net_wifi_untrackSignificantWifiChange}, |
| { "getWifiLinkLayerStatsNative", "(I)Landroid/net/wifi/WifiLinkLayerStats;", |
| (void*) android_net_wifi_getLinkLayerStats}, |
| { "getSupportedFeatureSetNative", "(I)I", |
| (void*) android_net_wifi_getSupportedFeatures}, |
| { "requestRangeNative", "(II[Landroid/net/wifi/RttManager$RttParams;)Z", |
| (void*) android_net_wifi_requestRange}, |
| { "cancelRangeRequestNative", "(II[Landroid/net/wifi/RttManager$RttParams;)Z", |
| (void*) android_net_wifi_cancelRange} |
| }; |
| |
| int register_android_net_wifi_WifiNative(JNIEnv* env) { |
| return AndroidRuntime::registerNativeMethods(env, |
| "com/android/server/wifi/WifiNative", gWifiMethods, NELEM(gWifiMethods)); |
| } |
| |
| |
| /* User to register native functions */ |
| extern "C" |
| jint Java_com_android_server_wifi_WifiNative_registerNatives(JNIEnv* env, jclass clazz) { |
| return AndroidRuntime::registerNativeMethods(env, |
| "com/android/server/wifi/WifiNative", gWifiMethods, NELEM(gWifiMethods)); |
| } |
| |
| }; // namespace android |
