[android-developers] Re: NFC Secure Element
When the card emulation is detected, the call is routed to nfc_jni_transaction_callback() of SecureElement. From here the event is posted to NfcService for example AID_SELECTED events are all posted to NfcService. I was wondering if there is way to communicate to SecureElement through this handle. If I try to open SecureElement parallel y, the call throws error that External RF Field is detected, when this channel is open, I believe there must be a way to wait until this mode is finished and communicate back to SecureElement or use the same channel to communicate. In fact, If I view the ice-scream sandwich code, there is new event subscription APDU_RECIEVED in the secure element callback. It looks like the PICC interface is open now. Hopefully we should be able to communicate. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: NFC Secure Element
I am not sure if anybody explored NfcExecutionEnvironment class. There are APIs to communicate to secure element. I don't see any key requirement. I could listen to AID_SELECTED event from NfcService. I am trying to send data to SE. I get error that External RF Field detected, what does this mean. Should I be waiting until the external reader sets mode or i have to initiate the NFC mode. regards malls On Feb 6, 5:51 am, s.rawat imsaurabhra...@gmail.com wrote: Hi Nemik, You wrote : *Yea, that's right. All it does currently is read; at least via the Java API. If you look at the kernel source though, a bunch of ifdefs which allow for emulation were all disabled. So full compliance with the NFC standard will have to wait for a future kernel release. * waht are these JAVA APIs ?Can we use them for reading NFC Secure Element - Mifare 4k? Rgds, Saurabh ..pain is temporary.quitting lasts forever.. On Mon, Feb 6, 2012 at 7:08 PM, s.rawat imsaurabhra...@gmail.com wrote: Any comments...plz respond if you are reading this mail ! rgds, Saurabh ..pain is temporary.quitting lasts forever.. On Wed, Feb 1, 2012 at 1:21 PM, p z ymdo...@gmail.com wrote: I think maybe you can. and plesae share your rom when you finished.thx. On 2月1日, 上午8时15分, malls masubha...@gmail.com wrote: Fernando, I was wondering if I can emulate the card in my application and send it to the terminal. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: NFC Secure Element
I don't see any interface of passing the keys to open secure element in the android code. I am not sure how many people claims that you need google Keys to open SecureElement. May be I am missing something. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: NFC Secure Element
Fernando, In that case, what's api to send apdu to external SE and how can we have external SE added to the phone. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: NFC Secure Element
Fernando, I was wondering if I can emulate the card in my application and send it to the terminal. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: NFC Secure Element
Fernando,
Here is the logcat output that I am getting. Is libpn544.so supposed to be
built as part of this build process or am i missing something. I have
checked, there were no errors during the compilation anywhere.
D/NFC JNI ( 4179): NFC Service : loading JNI
I/NfcService( 4179): Starting NFC service
D/NFC JNI ( 4179): ** Init Native Structure **
D/NFC JNI ( 4179): ** Init Native Structure **
D/NFC JNI ( 4179): ** Init Native Structure OK **
D/NFC JNI ( 4179): ** Init Native Structure OK **
I/RegisteredComponentCache( 4179): ComponentInfo: ResolveInfo{405641b0
com.andro
id.apps.tag.TagViewer p=0 o=0 m=0x108000}, techs: android.nfc.tech.Ndef,
D/NFC JNI ( 4179): Set LLCP LTO to 150
D/NFC JNI ( 4179): Set LLCP LTO to 150
D/NFC JNI ( 4179): Set LLCP MIU to 128
D/NFC JNI ( 4179): Set LLCP MIU to 128
D/NFC JNI ( 4179): Set LLCP WKS to 1
D/NFC JNI ( 4179): Set LLCP WKS to 1
D/NFC JNI ( 4179): Set LLCP OPT to 0
D/NFC JNI ( 4179): Set LLCP OPT to 0
D/NFC JNI ( 4179): Set NFC DISCOVERY A to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY A to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY B to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY B to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY F to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY F to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY 15693 to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY 15693 to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY NFCIP to 1
D/NFC JNI ( 4179): Set NFC DISCOVERY 15693 to 1
D/NFC JNI ( 4179): Start Initialization
D/NFC_LIST( 4179): Allocated node: 0x292868 (0x4496fa70)
D/NFC JNI ( 4179): phLibNfc_Mgt_ConfigureDriver(0x00295ad8, 0x0008)
D/NFC JNI ( 4179): phLibNfc_Mgt_ConfigureDriver(0x00295ad8, 0x0008)
W/NFC_i2c ( 4179): sleeping a little longer...
D/NFC JNI ( 4179): phLibNfc_Mgt_ConfigureDriver() returned
0x[NFCSTATUS_SUCC
ESS]
D/NFC JNI ( 4179): phLibNfc_Mgt_Initialize()
D/NFC JNI ( 4179): phLibNfc_Mgt_Initialize()
E/NFC-HCI ( 4179): Could not open libpn544.so
D/NFC JNI ( 4179): phLibNfc_Mgt_Initialize returned
0x000d[NFCSTATUS_PENDING]
D/NFC JNI ( 4179): phLibNfc_Mgt_Initialize returned
0x000d[NFCSTATUS_PENDING]
D/NFC JNI ( 4179): NFC client started
D/NFC JNI ( 4179): NFC client started
D/NFC JNI ( 4179): Callback: nfc_jni_init_callback() -
status=0x[NFCSTATUS_S
UCCESS]
I/DEBUG ( 3190): *** *** *** *** *** *** *** *** *** *** *** ***^C
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Re: [android-developers] Re: NFC Secure Element
Dear Fernando I tried to patch as per your instructions and root the device. I get error saying libpn544.so not found. I don't see this file created after the compilation. Where is it trying to load from. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: NFC Secure Element
Softy Could you please share android client code snippet to send APDU command to SE after the patch. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: NFC Secure Element
Thanks Saurabh and Fernando, that worked just adding the library. Just Curious is it supposed to be part of android build, not sure why am I missing that file. On Jan 26, 11:09 pm, s.rawat imsaurabhra...@gmail.com wrote: Hi, I faced this issue.Plz paste the file attached in the mail to the * /system/lib* directory as suggested by * Fernando* .And yes you have to do remount the system partition as RW. Rgds, Saurabh ..pain is temporary.quitting lasts forever.. 2012/1/27 Fernando Miguélez fernando.migue...@gmail.com There must be an error with patches since other person had the same issue. Just copy it manually to the /system/lib directory of the phone (you have to remount the system partition as RW). 2012/1/27 malls masubha...@gmail.com Dear Fernando I tried to patch as per your instructions and root the device. I get error saying libpn544.so not found. I don't see this file created after the compilation. Where is it trying to load from. regards malls -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en libpn544_fw.so 77KViewDownload -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: NFC Secure Element
Fernando, Thanks I could create custom image with nfc enabled by using your help. Just to clarify myself, if we are connected to external reader, I should be able to directly read/write APDUs from my app right. should I be using NFCService.transceive(..) method to read/write from the external reader. regards malls On Jan 4, 6:17 am, Fernando Miguélez fernando.migue...@gmail.com wrote: Well, options are enabled in cascade. The problem comes because the first option is not enabled. Besides, if you look at the Wireless Settings screen, there is only the NFC Settings option, but not the one that lets you enalbe/disable NFC directly from that screen. That is beacuse the Nfc service in not available. Connection to a computer in debug mode will draw some light. Instead of compiling the whole image again I suggest you to compile just the Nfc.apk system application and replace the original one. You must remount /system partition in read/write mode and overwrite the apk inside /system/app. Then you must kill the nfc service by means of DDMS view of the ADT (you must connnect the phone in debug mode and since you have compiled in userdebug mode you will see all the running proccesses). The service will restart automatically. When it comes to read/write the card by means of an external reader, any Mifare Classic 4K compatible RFID reader will do. If you try to access directly to the SE from an Android application I am afraid to disappoint you but that is not possible, at least I wasn't successful at it and nobody I know either. The reasons are well described in other posts and on stackoverflow. Regards On Wed, Jan 4, 2012 at 2:56 PM, s.rawat imsaurabhra...@gmail.com wrote: Thanks ! I will also try from my side recompiling it.So you mean I should get the Check boxes enabled for *Only Card EmulationMode* and *Use External SE* My main aim is to write to the NFC card in card emulation mode so that it can be read by any Card Reader.is it possible after your patches are applied using teh android SDKs or do we have to write some native application. Rgds, Softy ..pain is temporary.quitting lasts forever.. 2012/1/4 Fernando Miguélez fernando.migue...@gmail.com Great work. Obviously there is something wrong with the compilation. Have you tried to connect in debug mode the phone to a computer with Android Development Tools and see what the traces look like. They may offer a clue. My suspicion is that NfcService is crashing. I will review my notes tomorrow if I find something different to the steps you followed to build the image. On Wed, Jan 4, 2012 at 9:17 AM, softy imsaurabhra...@gmail.com wrote: Hi All, Thanks Fernando Miguélez Palomo for posting the patches.I have applied it to 2.3.4-r1 Android gingerbread and compiled /flashed it on Samsung Nexus S and was able to see the NFC Settings changed(though i cant select them, they are disabled) I have blogged the whole steps herehttp://techshek4u.blogspot.com/2012/01/applying-card-emulation-patch-Plz let me know if I miss something. @ Fernando Miguélez Palomo What next after that.How can i test this.Any source code or tool /card reader description will be enlightening. Rgds, softy -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
