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      1 /*
      2  * Copyright (C) 2013 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 /*
     18  *  Manage the listen-mode routing table.
     19  */
     20 #pragma once
     21 #include "SyncEvent.h"
     22 #include "NfcJniUtil.h"
     23 #include "RouteDataSet.h"
     24 #include <vector>
     25 extern "C"
     26 {
     27     #include "nfa_api.h"
     28     #include "nfa_ee_api.h"
     29 }
     30 
     31 class RoutingManager
     32 {
     33 public:
     34     static RoutingManager& getInstance ();
     35     bool initialize(nfc_jni_native_data* native);
     36     void enableRoutingToHost();
     37     void disableRoutingToHost();
     38     bool addAidRouting(const uint8_t* aid, uint8_t aidLen, int route);
     39     bool removeAidRouting(const uint8_t* aid, uint8_t aidLen);
     40     bool commitRouting();
     41     int registerT3tIdentifier(uint8_t* t3tId, uint8_t t3tIdLen);
     42     void deregisterT3tIdentifier(int handle);
     43     void onNfccShutdown();
     44     int registerJniFunctions (JNIEnv* e);
     45 private:
     46     RoutingManager();
     47     ~RoutingManager();
     48     RoutingManager(const RoutingManager&);
     49     RoutingManager& operator=(const RoutingManager&);
     50 
     51     void handleData (uint8_t technology, const uint8_t* data, uint32_t dataLen, tNFA_STATUS status);
     52     void notifyActivated (uint8_t technology);
     53     void notifyDeactivated (uint8_t technology);
     54 
     55     // See AidRoutingManager.java for corresponding
     56     // AID_MATCHING_ constants
     57 
     58     // Every routing table entry is matched exact (BCM20793)
     59     static const int AID_MATCHING_EXACT_ONLY = 0x00;
     60     // Every routing table entry can be matched either exact or prefix
     61     static const int AID_MATCHING_EXACT_OR_PREFIX = 0x01;
     62     // Every routing table entry is matched as a prefix
     63     static const int AID_MATCHING_PREFIX_ONLY = 0x02;
     64 
     65     static void nfaEeCallback (tNFA_EE_EVT event, tNFA_EE_CBACK_DATA* eventData);
     66     static void stackCallback (uint8_t event, tNFA_CONN_EVT_DATA* eventData);
     67     static void nfcFCeCallback (uint8_t event, tNFA_CONN_EVT_DATA* eventData);
     68 
     69     static int com_android_nfc_cardemulation_doGetDefaultRouteDestination (JNIEnv* e);
     70     static int com_android_nfc_cardemulation_doGetDefaultOffHostRouteDestination (JNIEnv* e);
     71     static int com_android_nfc_cardemulation_doGetAidMatchingMode (JNIEnv* e);
     72 
     73     std::vector<uint8_t> mRxDataBuffer;
     74 
     75     // Fields below are final after initialize()
     76     nfc_jni_native_data* mNativeData;
     77     int mDefaultEe;
     78     int mDefaultEeNfcF;
     79     int mOffHostEe;
     80     int mActiveSe;
     81     int mActiveSeNfcF;
     82     int mAidMatchingMode;
     83     int mNfcFOnDhHandle;
     84     bool mReceivedEeInfo;
     85     tNFA_EE_DISCOVER_REQ mEeInfo;
     86     tNFA_TECHNOLOGY_MASK mSeTechMask;
     87     static const JNINativeMethod sMethods [];
     88     SyncEvent mEeRegisterEvent;
     89     SyncEvent mRoutingEvent;
     90     SyncEvent mEeUpdateEvent;
     91     SyncEvent mEeInfoEvent;
     92     SyncEvent mEeSetModeEvent;
     93 };
     94 
     95