nfc-list.c

/*-
 * Free/Libre Near Field Communication (NFC) library
 *
 * Libnfc historical contributors:
 * Copyright (C) 2009      Roel Verdult
 * Copyright (C) 2009-2013 Romuald Conty
 * Copyright (C) 2010-2012 Romain Tartière
 * Copyright (C) 2010-2013 Philippe Teuwen
 * Copyright (C) 2012-2013 Ludovic Rousseau
 * See AUTHORS file for a more comprehensive list of contributors.
 * Additional contributors of this file:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *  1) Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  2 )Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Note that this license only applies on the examples, NFC library itself is under LGPL
 *
 */

/**
 * @file nfc-list.c
 * @brief Lists the first target present of each founded device
 */

#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif // HAVE_CONFIG_H

#include <err.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>

#include <nfc/nfc.h>

#include "nfc-utils.h"

#define MAX_DEVICE_COUNT 16
#define MAX_TARGET_COUNT 16

static nfc_device *pnd;

static void
print_usage(const char *progname)
{
  printf("usage: %s [-v] [-t X]\n", progname);
  printf("  -v\t verbose display\n");
  printf("  -t X\t poll only for types according to bitfield X:\n");
  printf("\t   1: ISO14443A\n");
  printf("\t   2: Felica (212 kbps)\n");
  printf("\t   4: Felica (424 kbps)\n");
  printf("\t   8: ISO14443B\n");
  printf("\t  16: ISO14443B'\n");
  printf("\t  32: ISO14443B-2 ST SRx\n");
  printf("\t  64: ISO14443B-2 ASK CTx\n");
  printf("\t 128: ISO14443A-3 Jewel\n");
  printf("\t 256: ISO14443A-2 NFC Barcode\n");
  printf("\tSo 511 (default) polls for all types.\n");
  printf("\tNote that if 16, 32 or 64 then 8 is selected too.\n");
}

int
main(int argc, const char *argv[])
{
  (void) argc;
  const char *acLibnfcVersion;
  size_t  i;
  bool verbose = false;
  int res = 0;
  int mask = 0x1ff;
  int arg;

  nfc_context *context;
  nfc_init(&context);
  if (context == NULL) {
    ERR("Unable to init libnfc (malloc)");
    exit(EXIT_FAILURE);
  }

  // Display libnfc version
  acLibnfcVersion = nfc_version();
  printf("%s uses libnfc %s\n", argv[0], acLibnfcVersion);

  // Get commandline options
  for (arg = 1; arg < argc; arg++) {
    if (0 == strcmp(argv[arg], "-h")) {
      print_usage(argv[0]);
      exit(EXIT_SUCCESS);
    } else if (0 == strcmp(argv[arg], "-v")) {
      verbose = true;
    } else if ((0 == strcmp(argv[arg], "-t")) && (arg + 1 < argc)) {
      arg++;
      mask = atoi(argv[arg]);
      if ((mask < 1) || (mask > 0x1ff)) {
        ERR("%i is invalid value for type bitfield.", mask);
        print_usage(argv[0]);
        exit(EXIT_FAILURE);
      }
      // Force TypeB for all derivatives of B
      if (mask & 0x70)
        mask |= 0x08;
    } else {
      ERR("%s is not supported option.", argv[arg]);
      print_usage(argv[0]);
      exit(EXIT_FAILURE);
    }
  }

  /* Lazy way to open an NFC device */
#if 0
  pnd = nfc_open(context, NULL);
#endif

  /* Use connection string if specific device is wanted,
   * i.e. PN532 UART device on /dev/ttyUSB1 */
#if 0
  pnd = nfc_open(context, "pn532_uart:/dev/ttyUSB1");
#endif

  nfc_connstring connstrings[MAX_DEVICE_COUNT];
  size_t szDeviceFound = nfc_list_devices(context, connstrings, MAX_DEVICE_COUNT);

  if (szDeviceFound == 0) {
    printf("No NFC device found.\n");
  }

  for (i = 0; i < szDeviceFound; i++) {
    nfc_target ant[MAX_TARGET_COUNT];
    pnd = nfc_open(context, connstrings[i]);

    if (pnd == NULL) {
      ERR("Unable to open NFC device: %s", connstrings[i]);
      continue;
    }
    if (nfc_initiator_init(pnd) < 0) {
      nfc_perror(pnd, "nfc_initiator_init");
      nfc_exit(context);
      exit(EXIT_FAILURE);
    }

    printf("NFC device: %s opened\n", nfc_device_get_name(pnd));

    nfc_modulation nm;

    if (mask & 0x1) {
      nm.nmt = NMT_ISO14443A;
      nm.nbr = NBR_106;
      // List ISO14443A targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443A passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x02) {
      nm.nmt = NMT_FELICA;
      nm.nbr = NBR_212;
      // List Felica tags
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d Felica (212 kbps) passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x04) {
      nm.nmt = NMT_FELICA;
      nm.nbr = NBR_424;
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d Felica (424 kbps) passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x08) {
      nm.nmt = NMT_ISO14443B;
      nm.nbr = NBR_106;
      // List ISO14443B targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443B passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x10) {
      nm.nmt = NMT_ISO14443BI;
      nm.nbr = NBR_106;
      // List ISO14443B' targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443B' passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x20) {
      nm.nmt = NMT_ISO14443B2SR;
      nm.nbr = NBR_106;
      // List ISO14443B-2 ST SRx family targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443B-2 ST SRx passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x40) {
      nm.nmt = NMT_ISO14443B2CT;
      nm.nbr = NBR_106;
      // List ISO14443B-2 ASK CTx family targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443B-2 ASK CTx passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x80) {
      nm.nmt = NMT_JEWEL;
      nm.nbr = NBR_106;
      // List Jewel targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443A-3 Jewel passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }

    if (mask & 0x100) {
      nm.nmt = NMT_BARCODE;
      nm.nbr = NBR_106;
      // List NFC Barcode targets
      if ((res = nfc_initiator_list_passive_targets(pnd, nm, ant, MAX_TARGET_COUNT)) >= 0) {
        int n;
        if (verbose || (res > 0)) {
          printf("%d ISO14443A-2 NFC Barcode passive target(s) found%s\n", res, (res == 0) ? ".\n" : ":");
        }
        for (n = 0; n < res; n++) {
          print_nfc_target(&ant[n], verbose);
          printf("\n");
        }
      }
    }
    nfc_close(pnd);
  }

  nfc_exit(context);
  exit(EXIT_SUCCESS);
}