| /****************************************************************************** |
| * |
| * Copyright 2019 NXP |
| * |
| * 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. |
| * |
| * |
| ******************************************************************************/ |
| #include "NativeJniExtns.h" |
| #include <android-base/stringprintf.h> |
| #include <base/logging.h> |
| #include <dlfcn.h> |
| #include "SecureElement.h" |
| #include "nfa_api.h" |
| using android::base::StringPrintf; |
| |
| /*Static Variables */ |
| NativeJniExtns NativeJniExtns::nativeExtnsObj; |
| NativeNfcExtnsEvt* gNfcExtnsImplInstance = NULL; |
| void registerNfcNotifier(NativeNfcExtnsEvt* obj); |
| /***************************************************************************** |
| ** |
| ** public variables and functions |
| ** |
| *****************************************************************************/ |
| extern bool nfc_debug_enabled; |
| namespace android { |
| extern tNFA_STATUS NxpPropCmd_send(uint8_t* pData4Tx, uint8_t dataLen, |
| uint8_t* rsp_len, uint8_t* rsp_buf, |
| uint32_t rspTimeout, tHAL_NFC_ENTRY* halMgr); |
| extern bool isDiscoveryStarted(); |
| extern void startRfDiscovery(bool isStart); |
| extern int nfcManager_doPartialInitialize(JNIEnv* e, jobject o); |
| extern int nfcManager_doPartialDeInitialize(JNIEnv*, jobject); |
| extern bool nfcManager_isNfcActive(); |
| } // namespace android |
| |
| NativeJniExtns& NativeJniExtns::getInstance() { return nativeExtnsObj; } |
| |
| /******************************************************************************* |
| ** |
| ** Function: NativeJniExtns |
| ** |
| ** Description: This is called during init |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| NativeJniExtns::NativeJniExtns() : lib_handle(NULL) { |
| memset(®NfcExtnsFunc, 0, sizeof(fpRegisterNfcExtns)); |
| DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: Enter", __func__); |
| extns_jni_path = "/system/lib64/libnfc_jni_extns.so"; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function: loadExtnsLibrary |
| ** |
| ** Description: This api will load the jni extns library |
| ** and initialize the native functions and variables in it. |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| bool NativeJniExtns::loadExtnsLibrary() { |
| DLOG_IF(INFO, true) << StringPrintf("%s: Enter", __func__); |
| char* error; |
| /*Clear the previous dlerrors if any*/ |
| if ((error = dlerror()) != NULL) { |
| DLOG_IF(ERROR, nfc_debug_enabled) |
| << StringPrintf("%s: Clear previous dlerror message = %s", |
| __func__, error); |
| } |
| lib_handle = dlopen("/system/lib64/libnfc_jni_extns.so", RTLD_NOW); |
| |
| if (lib_handle == NULL) { |
| DLOG_IF(ERROR, nfc_debug_enabled) |
| << StringPrintf("%s: Unable to load library ", __func__); |
| return false; |
| } |
| if ((error = dlerror()) != NULL) { |
| DLOG_IF(ERROR, nfc_debug_enabled) |
| << StringPrintf("%s: Unable to load library %s", __func__, error); |
| return false; |
| } |
| |
| regNfcExtnsFunc.initNativeJni = |
| (fp_InitNative_t)dlsym(lib_handle, "nfc_initNativeFunctions"); |
| if ((error = dlerror()) != NULL) { |
| DLOG_IF(ERROR, nfc_debug_enabled) |
| << StringPrintf("%s: Unable to link the symbol %s", __func__, error); |
| dlclose(lib_handle); |
| lib_handle = NULL; |
| return false; |
| } |
| return true; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function: unloadExtnsLibrary |
| ** |
| ** Description: This api will close the opened jni extns library |
| ** and initialize the native functions and variables in it. |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| bool NativeJniExtns::unloadExtnsLibrary() { |
| DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: Enter", __func__); |
| if (lib_handle != NULL) { |
| dlclose(lib_handle); |
| lib_handle = NULL; |
| } |
| return true; |
| } |
| /******************************************************************************* |
| ** |
| ** Function: initialize |
| ** |
| ** Description: This will load the library and call method to register |
| ** functions from extns JNI. |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| void NativeJniExtns::initialize(JNIEnv* e) { |
| if (loadExtnsLibrary()) { |
| DLOG_IF(INFO, true) << StringPrintf("%s: Calling library initialize", |
| __func__); |
| (*regNfcExtnsFunc.initNativeJni)(e); |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function: isExtensionPresent |
| ** |
| ** Description: Used externally to determine if extension is present or not. |
| ** |
| ** Returns: 'true' if extension is Present, else 'false'. |
| ** |
| *******************************************************************************/ |
| bool NativeJniExtns::isExtensionPresent() { |
| return (lib_handle != NULL) ? true : false; |
| } |
| /******************************************************************************* |
| ** |
| ** Function: initializeNativeData |
| ** |
| ** Description: initialize native data |
| ** |
| ** Returns: None |
| ** |
| ******************************************************************************/ |
| void NativeJniExtns::initializeNativeData(nfc_jni_native_data* native) { |
| gNativeData = native; |
| } |
| /******************************************************************************* |
| ** |
| ** Function: NativeJniExtns |
| ** |
| ** Description: Free variables. |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| NativeJniExtns::~NativeJniExtns() { unloadExtnsLibrary(); }; |
| |
| /******************************************************************************* |
| ** |
| ** Function: notifyNfcEvent |
| ** |
| ** Description: Notify NFC event notifier to registered extns client |
| ** library. |
| ** |
| ** Returns: None |
| ** |
| *******************************************************************************/ |
| void NativeJniExtns::notifyNfcEvent(std::string evt, void* evt_data, |
| void* evt_code) { |
| if (gNfcExtnsImplInstance != NULL) |
| gNfcExtnsImplInstance->notifyNfcEvt(evt, evt_data, evt_code); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function: registerNfcNotifier |
| ** |
| ** Description: Register NFC event notifier to receive events from JNI |
| ** to extns library. |
| ** |
| ** Returns: Native data structure. |
| ** |
| *******************************************************************************/ |
| void registerNfcNotifier(NativeNfcExtnsEvt* obj) { |
| gNfcExtnsImplInstance = obj; |
| } |