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Android NFC 与 APDU 命令的问题

发布于 2024-11-16 13:28:12 字数 8489 浏览 8 评论 0原文

我正在开发一个应用程序，使用 IsoDep 标签技术向支持 NFC 的卡发出 APDU 命令。

更新：因此，下面看到的问题似乎与我正在使用的卡的功率要求有关，当我使用功率要求较低的其他卡时，以下症状不会频繁发生。

我明确遵循了文档并成功地实现了该协议。然而，虽然成功程度参差不齐，但我遇到了 NFC 较低级别库的一些问题，超出了我的代码的控制范围。

我已经实现了以下内容：

  • 待处理的前台调度 意图。
  • 意图有一个技术过滤器 对于 IsoDep.class 和操作：
    • ACTION_TAG_DISCOVERED
  • 一旦我那么 从 Intent Extra 中提取标签 发出 APDU 命令并处理 问题

是我注意到了一些事情：

在 Nexus S 上，卡的位置取决于成功的通信流，如果它不在最佳位置，我将收到 IOException 如果由于卡已移动​​或未保留在 RF 场中而导致出现太多 IOException，我会开始看到以下异常（见下文） 我想知道其他人是否也看到过这些问题？在我的 onResume 方法中，我没有任何逻辑来阻止多次调用该方法的 NFCAdapter 实例：enableForegroundDispatch，我应该这样做吗？

预先感谢您的任何帮助。

异常示例 1

06-16 12:08:43.351: ERROR/NFC(661): NFC service dead - attempting to recover
06-16 12:08:43.351: ERROR/NFC(661): android.os.DeadObjectException
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.BinderProxy.transact(Native     Method)
06-16 12:08:43.351: ERROR/NFC(661):     at android.nfc.INfcAdapter$Stub$Proxy.enableForegroundDispatch(INfcAdapter.java:528)
06-16 12:08:43.351: ERROR/NFC(661):     at android.nfc.NfcAdapter.enableForegroundDispatch(NfcAdapter.java:494)
06-16 12:08:43.351: ERROR/NFC(661):     at myClass.onResume(MyClass.java:406)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1150)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.Activity.performResume(Activity.java:3832)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2110)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2135)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1668)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:43.351: ERROR/NFC(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:43.351: ERROR/NFC(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:43.351: ERROR/NFC(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:43.351: ERROR/NFC(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:43.351: ERROR/NFC(661):     at dalvik.system.NativeStart.main(Native Method)

异常示例 2

06-16 12:08:18.316: ERROR/MyClass(661): IOException in APDU commands: transceive failed
06-16 12:08:18.316: WARN/System.err(661): java.io.IOException: transceive failed
06-16 12:08:18.324: WARN/System.err(661):     at android.nfc.tech.BasicTagTechnology.transceive(BasicTagTechnology.java:144)
06-16 12:08:18.324: WARN/System.err(661):     at android.nfc.tech.IsoDep.transceive(IsoDep.java:159)
06-16 12:08:18.328: WARN/System.err(661):     at myClass.handleTagRead(MyClass.java:117)
06-16 12:08:18.328: WARN/System.err(661):     at myClass.onNewIntent(MyClass.java:84)
06-16 12:08:18.332: WARN/System.err(661):     at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1119)
06-16 12:08:18.332: WARN/System.err(661):     at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:1722)
06-16 12:08:18.335: WARN/System.err(661):     at android.app.ActivityThread.performNewIntents(ActivityThread.java:1734)
06-16 12:08:18.335: WARN/System.err(661):     at android.app.ActivityThread.handleNewIntent(ActivityThread.java:1742)
06-16 12:08:18.339: WARN/System.err(661):     at android.app.ActivityThread.access$2300(ActivityThread.java:117)
06-16 12:08:18.343: WARN/System.err(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:978)
06-16 12:08:18.343: WARN/System.err(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:18.347: WARN/System.err(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:18.347: WARN/System.err(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:18.351: WARN/System.err(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:18.351: WARN/System.err(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:18.355: WARN/System.err(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:18.355: WARN/System.err(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:18.359: WARN/System.err(661):     at dalvik.system.NativeStart.main(Native Method)
06-16 12:08:18.359: DEBUG/MyClass(661): Setting up for ForegroundDispatch for NFC ISO DEP
06-16 12:08:18.492: DEBUG/NativeNfcTag(871): Tag lost, restarting polling loop
06-16 12:08:19.269: WARN/NfcService(871): Failed to connect to tag
06-16 12:08:23.980: ERROR/NFC JNI(871): phLibNfc_RemoteDev_Connect(RW) returned 0x00ff[NFCSTATUS_FAILED]
06-16 12:08:23.980: WARN/NfcService(871): Failed to connect to tag
06-16 12:08:23.980: ERROR/NFC JNI(871): doDisconnect() - Target already disconnected

异常示例 3

06-16 12:08:15.468: DEBUG/MyClass(661): Recieved a TAG
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieve    d tag: android.nfc.tech.IsoDep
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieved tag: android.nfc.tech.NfcA
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieved tag: android.nfc.tech.MifareClassic
06-16 12:08:15.484: ERROR/MyClass(661): Failed to connect to aTag Reason: null
06-16 12:08:15.484: WARN/System.err(661): java.io.IOException
06-16 12:08:15.484: WARN/System.err(661):     at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:81)
06-16 12:08:15.484: WARN/System.err(661):     at android.nfc.tech.IsoDep.connect(IsoDep.java:39)
06-16 12:08:15.484: WARN/System.err(661):     at myClass.handleTagRead(ConfirmPaymentScreen.java:107)
06-16 12:08:15.484: WARN/System.err(661):     at myClass.onNewIntent(ConfirmPaymentScreen.java:84)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1119)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:1722)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.performNewIntents(ActivityThread.java:1734)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.handleNewIntent(ActivityThread.java:1742)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.access$2300(ActivityThread.java:117)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:978)
06-16 12:08:15.484: WARN/System.err(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:15.484: WARN/System.err(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:15.484: WARN/System.err(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:15.484: WARN/System.err(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:15.484: WARN/System.err(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:15.484: WARN/System.err(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:15.484: WARN/System.err(661):     at dalvik.system.NativeStart.main(Native Method)
06-16 12:08:15.484: DEBUG/MyClass(661): Failed to connect to tag
06-16 12:08:15.484: DEBUG/MyClass(661): Setting up for ForegroundDispatch for NFC ISO DEP
06-16 12:08:15.609: ERROR/NFC JNI(871): phLibNfc_RemoteDev_CheckPresence() returned 0x0095[NFCSTATUS_INVALID_HANDLE]
06-16 12:08:15.609: DEBUG/NativeNfcTag(871): Tag lost, restarting polling loop
06-16 12:08:15.609: ERROR/NFC JNI(871): phLibNfc_RemoteDev_Disconnect(294f58) returned 0x0095[NFCSTATUS_INVALID_HANDLE]
原文

I am working on an Application using the IsoDep Tag Tech to issue APDU commands to an NFC enabled card.

UPDATE: So the issues seen below seem related to the power requirements of the cards I am using, when I use a different card with lower power requirements the below symptoms don't occur as frequently.

I have followed the documentation explicitly and have a successful managed to implement the protocol. However with mixed success I am experiencing some issues with the NFC lower level libraries beyond the control of my code.

I have implemented the following:

  • Foreground dispatching of a Pending
    Intent.
  • The intent has a tech filter
    for IsoDep.class and action:

    • ACTION_TAG_DISCOVERED
  • Once the I then
    extract the Tag from the Intent Extra
    Issue APDU commands and process the
    responses

The issue is that I have noticed a couple of things:

On the Nexus S the position of the card is dependent on a successful communication flow, if it is not in the sweet spot I will receive an IOException
If I get too many IOExceptions because the card has moved or not remained in the RF field I start to see the following excpetions (see below)
I was wondering if anyone else had seen these issues? In my onResume method I don't have any logic to prevent multiple calls to the NFCAdapter instance of the method: enableForegroundDispatch, should I be doing this.

Thanks in advance for any help.

Sample Exception 1

06-16 12:08:43.351: ERROR/NFC(661): NFC service dead - attempting to recover
06-16 12:08:43.351: ERROR/NFC(661): android.os.DeadObjectException
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.BinderProxy.transact(Native     Method)
06-16 12:08:43.351: ERROR/NFC(661):     at android.nfc.INfcAdapter$Stub$Proxy.enableForegroundDispatch(INfcAdapter.java:528)
06-16 12:08:43.351: ERROR/NFC(661):     at android.nfc.NfcAdapter.enableForegroundDispatch(NfcAdapter.java:494)
06-16 12:08:43.351: ERROR/NFC(661):     at myClass.onResume(MyClass.java:406)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1150)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.Activity.performResume(Activity.java:3832)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2110)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2135)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1668)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:43.351: ERROR/NFC(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:43.351: ERROR/NFC(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:43.351: ERROR/NFC(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:43.351: ERROR/NFC(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:43.351: ERROR/NFC(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:43.351: ERROR/NFC(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:43.351: ERROR/NFC(661):     at dalvik.system.NativeStart.main(Native Method)

Sample Exception 2

06-16 12:08:18.316: ERROR/MyClass(661): IOException in APDU commands: transceive failed
06-16 12:08:18.316: WARN/System.err(661): java.io.IOException: transceive failed
06-16 12:08:18.324: WARN/System.err(661):     at android.nfc.tech.BasicTagTechnology.transceive(BasicTagTechnology.java:144)
06-16 12:08:18.324: WARN/System.err(661):     at android.nfc.tech.IsoDep.transceive(IsoDep.java:159)
06-16 12:08:18.328: WARN/System.err(661):     at myClass.handleTagRead(MyClass.java:117)
06-16 12:08:18.328: WARN/System.err(661):     at myClass.onNewIntent(MyClass.java:84)
06-16 12:08:18.332: WARN/System.err(661):     at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1119)
06-16 12:08:18.332: WARN/System.err(661):     at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:1722)
06-16 12:08:18.335: WARN/System.err(661):     at android.app.ActivityThread.performNewIntents(ActivityThread.java:1734)
06-16 12:08:18.335: WARN/System.err(661):     at android.app.ActivityThread.handleNewIntent(ActivityThread.java:1742)
06-16 12:08:18.339: WARN/System.err(661):     at android.app.ActivityThread.access$2300(ActivityThread.java:117)
06-16 12:08:18.343: WARN/System.err(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:978)
06-16 12:08:18.343: WARN/System.err(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:18.347: WARN/System.err(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:18.347: WARN/System.err(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:18.351: WARN/System.err(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:18.351: WARN/System.err(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:18.355: WARN/System.err(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:18.355: WARN/System.err(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:18.359: WARN/System.err(661):     at dalvik.system.NativeStart.main(Native Method)
06-16 12:08:18.359: DEBUG/MyClass(661): Setting up for ForegroundDispatch for NFC ISO DEP
06-16 12:08:18.492: DEBUG/NativeNfcTag(871): Tag lost, restarting polling loop
06-16 12:08:19.269: WARN/NfcService(871): Failed to connect to tag
06-16 12:08:23.980: ERROR/NFC JNI(871): phLibNfc_RemoteDev_Connect(RW) returned 0x00ff[NFCSTATUS_FAILED]
06-16 12:08:23.980: WARN/NfcService(871): Failed to connect to tag
06-16 12:08:23.980: ERROR/NFC JNI(871): doDisconnect() - Target already disconnected

Sample Exception 3

06-16 12:08:15.468: DEBUG/MyClass(661): Recieved a TAG
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieve    d tag: android.nfc.tech.IsoDep
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieved tag: android.nfc.tech.NfcA
06-16 12:08:15.468: DEBUG/MyClass(661): Supported Technology of for recieved tag: android.nfc.tech.MifareClassic
06-16 12:08:15.484: ERROR/MyClass(661): Failed to connect to aTag Reason: null
06-16 12:08:15.484: WARN/System.err(661): java.io.IOException
06-16 12:08:15.484: WARN/System.err(661):     at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:81)
06-16 12:08:15.484: WARN/System.err(661):     at android.nfc.tech.IsoDep.connect(IsoDep.java:39)
06-16 12:08:15.484: WARN/System.err(661):     at myClass.handleTagRead(ConfirmPaymentScreen.java:107)
06-16 12:08:15.484: WARN/System.err(661):     at myClass.onNewIntent(ConfirmPaymentScreen.java:84)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1119)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:1722)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.performNewIntents(ActivityThread.java:1734)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.handleNewIntent(ActivityThread.java:1742)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.access$2300(ActivityThread.java:117)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:978)
06-16 12:08:15.484: WARN/System.err(661):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-16 12:08:15.484: WARN/System.err(661):     at android.os.Looper.loop(Looper.java:130)
06-16 12:08:15.484: WARN/System.err(661):     at android.app.ActivityThread.main(ActivityThread.java:3683)
06-16 12:08:15.484: WARN/System.err(661):     at java.lang.reflect.Method.invokeNative(Native Method)
06-16 12:08:15.484: WARN/System.err(661):     at java.lang.reflect.Method.invoke(Method.java:507)
06-16 12:08:15.484: WARN/System.err(661):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-16 12:08:15.484: WARN/System.err(661):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-16 12:08:15.484: WARN/System.err(661):     at dalvik.system.NativeStart.main(Native Method)
06-16 12:08:15.484: DEBUG/MyClass(661): Failed to connect to tag
06-16 12:08:15.484: DEBUG/MyClass(661): Setting up for ForegroundDispatch for NFC ISO DEP
06-16 12:08:15.609: ERROR/NFC JNI(871): phLibNfc_RemoteDev_CheckPresence() returned 0x0095[NFCSTATUS_INVALID_HANDLE]
06-16 12:08:15.609: DEBUG/NativeNfcTag(871): Tag lost, restarting polling loop
06-16 12:08:15.609: ERROR/NFC JNI(871): phLibNfc_RemoteDev_Disconnect(294f58) returned 0x0095[NFCSTATUS_INVALID_HANDLE]

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魔法少女 2024-11-23 13:28:12

所以我知道是什么原因造成的，我试图读取的一些 RFID 标签的功耗要求高于手机的功耗要求。令人不安的是，如果手机放在不好的地方太久，手机就会翻倒……

So I know what is causing this, some of the RFID tags I was trying to read had a higher power consumption requirement than the phone was capable of. The upsetting thing was/is the phone falls over if it gets in a bad place for too long...

回复 原文
残龙傲雪 2024-11-23 13:28:12

标签缺乏射频功率仍然是这里的答案吗？
我有自供电的 nt3h2xxx 系列标签，它们在最近的手机（诺基亚 3）上表现出相同的行为： nfca.tranceive(0xA2/0xA6...) 将数据成功写入标签（经过稍后检查），但在下面抛出“收发失败” 。虽然 nfca.tranceive（读取命令）工作正常。

W/System.err: java.io.IOException: Transceive failed
W/System.err:     at android.nfc.TransceiveResult.getResponseOrThrow(TransceiveResult.java:52)
W/System.err:     at android.nfc.tech.BasicTagTechnology.transceive(BasicTagTechnology.java:151)
W/System.err:     at android.nfc.tech.NfcA.transceive(NfcA.java:120)

也许我的标签线圈不够大，无法下拉对成功标签快速写入的 4 位 ACK 响应。虽然标签读取是可以的，因为标签响应有更多位（只是在这里猜测）。

解决方法是捕获 tranceive IOException 并忽略它。完成所有操作后，从标签中快速读取以查看快速写入是否有效。

Is lack of rf power to the tag still the answer here?
I have self powered nt3h2xxx series tags that exhibit the same behavior on a recent phone (Nokia 3): nfca.tranceive(0xA2/0xA6...) writes data to the tag successfully (after later inspection) but throws "Transceive failed" below. While nfca.tranceive(read commands) work fine.

W/System.err: java.io.IOException: Transceive failed
W/System.err:     at android.nfc.TransceiveResult.getResponseOrThrow(TransceiveResult.java:52)
W/System.err:     at android.nfc.tech.BasicTagTechnology.transceive(BasicTagTechnology.java:151)
W/System.err:     at android.nfc.tech.NfcA.transceive(NfcA.java:120)

Maybe my tag coil isn't sufficiently large to pull-down the 4-bit ACK response to the successful tag fast write. While a tag read is ok since the tag response has many more bits (just guessing here).

Workaround was to catch the tranceive IOexception and ignore it. Then after all is done, do a fast read from the tag to see if the fast write worked.

回复 原文
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