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 <vector>
22 #include "NfcJniUtil.h"
23 #include "RouteDataSet.h"
24 #include "SyncEvent.h"
25 
26 #include <map>
27 #include "nfa_api.h"
28 #include "nfa_ee_api.h"
29 
30 using namespace std;
31 
32 class RoutingManager {
33  public:
34   static RoutingManager& getInstance();
35   bool initialize(nfc_jni_native_data* native);
36   void deinitialize();
37   void enableRoutingToHost();
38   void disableRoutingToHost();
39   bool addAidRouting(const uint8_t* aid, uint8_t aidLen, int route,
40                      int aidInfo);
41   bool removeAidRouting(const uint8_t* aid, uint8_t aidLen);
42   bool commitRouting();
43   int registerT3tIdentifier(uint8_t* t3tId, uint8_t t3tIdLen);
44   void deregisterT3tIdentifier(int handle);
45   void onNfccShutdown();
46   int registerJniFunctions(JNIEnv* e);
47   bool setNfcSecure(bool enable);
48   void updateRoutingTable();
49 
50  private:
51   RoutingManager();
52   ~RoutingManager();
53   RoutingManager(const RoutingManager&);
54   RoutingManager& operator=(const RoutingManager&);
55 
56   void handleData(uint8_t technology, const uint8_t* data, uint32_t dataLen,
57                   tNFA_STATUS status);
58   void notifyActivated(uint8_t technology);
59   void notifyDeactivated(uint8_t technology);
60   void notifyEeUpdated();
61   tNFA_TECHNOLOGY_MASK updateEeTechRouteSetting();
62   void updateDefaultProtocolRoute();
63   void updateDefaultRoute();
64 
65   // See AidRoutingManager.java for corresponding
66   // AID_MATCHING_ constants
67 
68   // Every routing table entry is matched exact (BCM20793)
69   static const int AID_MATCHING_EXACT_ONLY = 0x00;
70   // Every routing table entry can be matched either exact or prefix
71   static const int AID_MATCHING_EXACT_OR_PREFIX = 0x01;
72   // Every routing table entry is matched as a prefix
73   static const int AID_MATCHING_PREFIX_ONLY = 0x02;
74 
75   static void nfaEeCallback(tNFA_EE_EVT event, tNFA_EE_CBACK_DATA* eventData);
76   static void stackCallback(uint8_t event, tNFA_CONN_EVT_DATA* eventData);
77   static void nfcFCeCallback(uint8_t event, tNFA_CONN_EVT_DATA* eventData);
78 
79   static int com_android_nfc_cardemulation_doGetDefaultRouteDestination(
80       JNIEnv* e);
81   static int com_android_nfc_cardemulation_doGetDefaultOffHostRouteDestination(
82       JNIEnv* e);
83   static jbyteArray com_android_nfc_cardemulation_doGetOffHostUiccDestination(
84       JNIEnv* e);
85   static jbyteArray com_android_nfc_cardemulation_doGetOffHostEseDestination(
86       JNIEnv* e);
87   static int com_android_nfc_cardemulation_doGetAidMatchingMode(JNIEnv* e);
88   static int com_android_nfc_cardemulation_doGetDefaultIsoDepRouteDestination(
89       JNIEnv* e);
90 
91   std::vector<uint8_t> mRxDataBuffer;
92   map<int, uint16_t> mMapScbrHandle;
93   bool mSecureNfcEnabled;
94 
95   // Fields below are final after initialize()
96   nfc_jni_native_data* mNativeData;
97   int mDefaultOffHostRoute;
98   vector<uint8_t> mOffHostRouteUicc;
99   vector<uint8_t> mOffHostRouteEse;
100   int mDefaultFelicaRoute;
101   int mDefaultEe;
102   int mDefaultIsoDepRoute;
103   int mAidMatchingMode;
104   int mNfcFOnDhHandle;
105   bool mIsScbrSupported;
106   uint16_t mDefaultSysCode;
107   uint16_t mDefaultSysCodeRoute;
108   uint8_t mDefaultSysCodePowerstate;
109   uint8_t mOffHostAidRoutingPowerState;
110   uint8_t mHostListenTechMask;
111   bool mDeinitializing;
112   bool mEeInfoChanged;
113   bool mReceivedEeInfo;
114   bool mAidRoutingConfigured;
115   tNFA_EE_CBACK_DATA mCbEventData;
116   tNFA_EE_DISCOVER_REQ mEeInfo;
117   tNFA_TECHNOLOGY_MASK mSeTechMask;
118   static const JNINativeMethod sMethods[];
119   SyncEvent mEeRegisterEvent;
120   SyncEvent mRoutingEvent;
121   SyncEvent mEeUpdateEvent;
122   SyncEvent mEeInfoEvent;
123   SyncEvent mEeSetModeEvent;
124 };
125