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Published 20 hours ago • verified publisher icon nfc-tools

IFD-NFC is inactive

Open eximius313 opened this issue 3 years ago • 5 comments

Dear ifdnfc community,

My goal is to use my PN532 reader in Java@RPi4

I've setup libnfc properly with pn532_uart driver My /etc/nfc/libnfc.conf looks like this:

allow_autoscan = true
allow_intrusive_scan = false
log_level = 3
device.name = "IFD-NFC"
device.connstring = "pn532_uart:/dev/ttyUSB0:115200"

and nfc-scan-device returns:

debug   libnfc.general  log_level is set to 3
debug   libnfc.general  allow_autoscan is set to true
debug   libnfc.general  allow_intrusive_scan is set to false
debug   libnfc.general  1 device(s) defined by user
debug   libnfc.general    #0 name: "IFD-NFC", connstring: "pn532_uart:/dev/ttyUSB0:115200"
nfc-scan-device uses libnfc 1.8.0
debug   libnfc.general  0 device(s) found using acr122_usb driver
debug   libnfc.general  0 device(s) found using pn53x_usb driver
1 NFC device(s) found:
debug   libnfc.driver.pn532_uart        Attempt to open: /dev/ttyUSB0 at 115200 baud.
debug   libnfc.bus.uart Serial port speed requested to be set to 115200 baud.
debug   libnfc.chip.pn53x       Diagnose
debug   libnfc.chip.pn53x       Timeout value: 500
debug   libnfc.bus.uart TX: 55 55 00 00 00 00 00 00 00 00 00 00 00 00 00 00
debug   libnfc.chip.pn53x       SAMConfiguration
debug   libnfc.chip.pn53x       Timeout value: 1000
debug   libnfc.bus.uart TX: 00 00 ff 03 fd d4 14 01 17 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 02 fe
debug   libnfc.bus.uart RX: d5 15
debug   libnfc.bus.uart RX: 16 00
debug   libnfc.bus.uart TX: 00 00 ff 09 f7 d4 00 00 6c 69 62 6e 66 63 be 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 09 f7
debug   libnfc.bus.uart RX: d5 01
debug   libnfc.bus.uart RX: 00 6c 69 62 6e 66 63
debug   libnfc.bus.uart RX: bc 00
debug   libnfc.chip.pn53x       GetFirmwareVersion
debug   libnfc.bus.uart TX: 00 00 ff 02 fe d4 02 2a 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 06 fa
debug   libnfc.bus.uart RX: d5 03
debug   libnfc.bus.uart RX: 32 01 06 07
debug   libnfc.bus.uart RX: e8 00
debug   libnfc.chip.pn53x       SetParameters
debug   libnfc.bus.uart TX: 00 00 ff 03 fd d4 12 14 06 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 02 fe
debug   libnfc.bus.uart RX: d5 13
debug   libnfc.bus.uart RX: 18 00
debug   libnfc.general  "IFD-NFC" (pn532_uart:/dev/ttyUSB0:115200) has been claimed.
- IFD-NFC:
    pn532_uart:/dev/ttyUSB0:115200
debug   libnfc.chip.pn53x       ReadRegister
debug   libnfc.bus.uart TX: 00 00 ff 0c f4 d4 06 63 02 63 03 63 0d 63 38 63 3d b0 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 07 f9
debug   libnfc.bus.uart RX: d5 07
debug   libnfc.bus.uart RX: 00 00 00 00 00
debug   libnfc.bus.uart RX: 24 00
debug   libnfc.chip.pn53x       PN53X_REG_CIU_TxMode (Defines the transmission data rate and framing during transmission)
debug   libnfc.chip.pn53x       PN53X_REG_CIU_RxMode (Defines the transmission data rate and framing during receiving)
debug   libnfc.chip.pn53x       WriteRegister
debug   libnfc.bus.uart TX: 00 00 ff 08 f8 d4 08 63 02 80 63 03 80 59 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 02 fe
debug   libnfc.bus.uart RX: d5 09
debug   libnfc.bus.uart RX: 22 00
debug   libnfc.chip.pn53x       InRelease
debug   libnfc.bus.uart TX: 00 00 ff 03 fd d4 52 00 da 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 03 fd
debug   libnfc.bus.uart RX: d5 53
debug   libnfc.bus.uart RX: 00
debug   libnfc.bus.uart RX: d8 00
debug   libnfc.general  set_property_bool NP_ACTIVATE_FIELD False
debug   libnfc.chip.pn53x       RFConfiguration
debug   libnfc.bus.uart TX: 00 00 ff 04 fc d4 32 01 00 f9 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 02 fe
debug   libnfc.bus.uart RX: d5 33
debug   libnfc.bus.uart RX: f8 00
debug   libnfc.chip.pn53x       PowerDown
debug   libnfc.bus.uart TX: 00 00 ff 03 fd d4 16 f0 26 00
debug   libnfc.bus.uart RX: 00 00 ff 00 ff 00
debug   libnfc.chip.pn53x       PN53x ACKed
debug   libnfc.bus.uart RX: 00 00 ff 03 fd
debug   libnfc.bus.uart RX: d5 17
debug   libnfc.bus.uart RX: 00
debug   libnfc.bus.uart RX: 14 00

Then I've compiled ifdnfc and while service pcscd status gives me:

● pcscd.service - PC/SC Smart Card Daemon
     Loaded: loaded (/lib/systemd/system/pcscd.service; indirect; vendor preset: enabled)
     Active: active (running) since Thu 2022-02-10 15:30:57 GMT; 17s ago

and my /etc/reader.conf.d/libifdnfc looks like this:

FRIENDLYNAME "IFD-NFC"
LIBPATH /usr/local/lib/libifdnfc.so
CHANNELID 0

Unfortunately ifdnfc-activate returns:

debug   libnfc.general  log_level is set to 3
debug   libnfc.general  allow_autoscan is set to true
debug   libnfc.general  allow_intrusive_scan is set to false
debug   libnfc.general  1 device(s) defined by user
debug   libnfc.general    #0 name: "IFD-NFC", connstring: "pn532_uart:/dev/ttyUSB0:115200"
debug   libnfc.general  0 device(s) found using acr122_usb driver
debug   libnfc.general  0 device(s) found using pn53x_usb driver
Activating ifdnfc with "pn532_uart:/dev/ttyUSB0:115200"...
IFD-NFC is inactive.

I'm already on aarch64 bit, because on 32bit systemifdnfc-activate was returning Insufficient buffer

My Java program:

import java.util.List;

import javax.smartcardio.CardException;
import javax.smartcardio.CardTerminal;
import javax.smartcardio.TerminalFactory;

public class Simple {

  public static void main(String[] args) throws CardException {
    TerminalFactory factory = TerminalFactory.getDefault();
    List<CardTerminal> terminals = factory.terminals().list();
    System.out.println("Terminals: " + terminals);
  }
}

returns [] terminals... What can I do in order to make ifdnfc "active"? Kind regards

eximius313 avatar Feb 10 '22 15:02 eximius313

Ok, for future generations, terminals are not found due to some bug described here So I must run my app with java -Dsun.security.smartcardio.library=/usr/lib/aarch64-linux-gnu/libpcsclite.so.1 MyApp

nevetheless ifdnfc-activate still returns IFD-NFC is inactive. and no card is found. Neither from my app, neither from pcsc_scan:

Using reader plug'n play mechanism
Scanning present readers...
0: IFD-NFC 00 00

Thu Feb 10 21:54:14 2022
 Reader 0: IFD-NFC 00 00
  Event number: 0
  Card state: Card removed,

eximius313 avatar Feb 10 '22 21:02 eximius313

I got a similar problem with my SCL3711 reader, it shows "Card removed" although nfc-list detects the a card.

The output of pcsc_scan after installing ifdnfc:

Using reader plug'n play mechanism
Scanning present readers...
0: SCM Micro SCL3711 Contactless Reader & NFC 00 00

Sun Nov 20 16:01:48 2022
 Reader 0: SCM Micro SCL3711 Contactless Reader & NFC 00 00
  Event number: 0
  Card state: Card removed,

vs. the output of nfc-list:

nfc-list uses libnfc 1.8.0
NFC device: SCM Micro / SCL3711-NFC&RW opened
1 ISO14443A passive target(s) found:
    ATQA (SENS_RES): 00 44
       UID (NFCID1): 04 9a 59 8a aa 6c 80
      SAK (SEL_RES): 08

Any hints on how to detect the card?

nzedler avatar Nov 20 '22 15:11 nzedler

Same here. I'm trying to bridge a pn532 nfc reader with pcscd to use a security token as a smartcard with gnupg (as scdaemon talks to pcscd for smartcard interactions).

After installing ccid libnfc pcsclite pcsc-tools ifdnfc-git packages in Arch, enabling pcscd.socket and setting up /etc/nfc/libnfc.conf with:

device.name = "IFD-NFC"
device.connstring = "pn532_uart:/dev/ttyUSB0"

and /etc/reader.conf.d/ifdnfc with:

FRIENDLYNAME "IFD-NFC"
LIBPATH      /usr/lib/libifdnfc.so
CHANNELID    0

All nfc-* tools from libnfc seem to be working, but pcsc_scan stays in:

Using reader plug'n play mechanism
Scanning present readers...
0: IFD-NFC 00 00

Wed Mar  8 13:24:46 2023
 Reader 0: IFD-NFC 00 00
  Event number: 0
  Card state: Card removed,
 \

agorgl avatar Mar 08 '23 11:03 agorgl

I think I just found out how this is supposed to be used! If I first fire up pcsc_scan to activate pcscd service (and keep it open) and call ifdnfc-activate after that I get:

2 NFC devices found, please select one:
[0] IFD-NFC	  (pn532_uart:/dev/ttyUSB0)
[1] IFD-NFC 00 00	  (pcsc:IFD-NFC 00 00)
>> 0
Activating ifdnfc with "pn532_uart:/dev/ttyUSB0"...
IFD-NFC is inactive.

Selecting the first option (0) enables the ifdnfc pcsc driver and scanning in pcsc_scan works!

I'm not sure though why it still reports the device as inactive, I'll have to dig into the source to find that out

agorgl avatar Mar 09 '23 11:03 agorgl

I found the issue! The ifdnfc-activate binary allocates a single byte receive buffer here: https://github.com/nfc-tools/ifdnfc/blob/0e48e8e107dc42f68fb472bb06d257503ad45b1d/src/ifdnfc-activate.c#L45 that in turn is passed by to SCardControl here: https://github.com/nfc-tools/ifdnfc/blob/0e48e8e107dc42f68fb472bb06d257503ad45b1d/src/ifdnfc-activate.c#L171 that calls the libpcsclite library here: https://github.com/LudovicRousseau/PCSC/blob/a98d3858602f94c5e9a0876353e02c0f2cd2dcaa/src/winscard_clnt.c#L2209 that sends a message on the pcscd here: https://github.com/LudovicRousseau/PCSC/blob/a98d3858602f94c5e9a0876353e02c0f2cd2dcaa/src/winscard_svc.c#L703 that is passed in the wincard implementation here: https://github.com/LudovicRousseau/PCSC/blob/a98d3858602f94c5e9a0876353e02c0f2cd2dcaa/src/winscard.c#L1301 that calls the ifdnfc's IFDHControl implementation through IFDControl here: https://github.com/LudovicRousseau/PCSC/blob/a98d3858602f94c5e9a0876353e02c0f2cd2dcaa/src/winscard.c#L1349 that seems to handle the request successfully, but we get a SCARD_E_INSUFFICIENT_BUFFER as a result, probably from here: https://github.com/LudovicRousseau/PCSC/blob/a98d3858602f94c5e9a0876353e02c0f2cd2dcaa/src/winscard_clnt.c#L2276

So increasing the receive buffer to fit the whole response (that contains the device name) fixes the inactive message problem!

agorgl avatar Mar 09 '23 20:03 agorgl