libnfc/examples/nfc-st25tb-info.c
2021-06-09 21:56:50 +02:00

246 lines
6.5 KiB
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-st25tb-info.c
* @brief Read ISO-14443-B ST25TB* and legacy SR* cards
*/
/* Benjamin DELPY `gentilkiwi`
* https://blog.gentilkiwi.com
* benjamin@gentilkiwi.com
* Licence : https://creativecommons.org/licenses/by/4.0/
* Rely on : libnfc - https://github.com/nfc-tools/libnfc
*
* $ gcc -lnfc -o nfc-st25tb-info nfc-st25tb-info.c
* $ ./nfc-st25tb-info
*/
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <nfc/nfc.h>
bool get_info(const nfc_target *pnt, uint8_t *pnbBlock, uint8_t *pbnSystem);
bool get_block_at(nfc_device *pnd, uint8_t block, uint8_t value[4], bool bPrintIt);
void print_hex(const uint8_t *pbtData, const size_t szBytes);
int main(int argc, const char *argv[])
{
nfc_context *context = NULL;
nfc_device *pnd = NULL;
nfc_target nt = {0};
nfc_modulation nm = {NMT_ISO14443B, NBR_106};
int res;
uint8_t i, nbBlock, bnSystem;
(void) argc;
(void) argv;
nfc_init(&context);
if(context)
{
pnd = nfc_open(context, NULL);
if(pnd)
{
res = nfc_initiator_init(pnd);
if(res == NFC_SUCCESS)
{
printf("Reader : %s - via %s\n ...wait for card...\n", nfc_device_get_name(pnd), nfc_device_get_connstring(pnd));
res = nfc_initiator_list_passive_targets(pnd, nm, &nt, 1);
if(res == 0) // we don't really wanted a NMT_ISO14443B
{
nm.nmt = NMT_ISO14443B2SR; // we want a NMT_ISO14443B2SR, but needed to ask for NMT_ISO14443B before
if (nfc_initiator_select_passive_target(pnd, nm, NULL, 0, &nt) > 0)
{
if(get_info(&nt, &nbBlock, &bnSystem))
{
printf("\nData :\n");
for(i = 0; i < nbBlock; i++)
{
get_block_at(pnd, i, NULL, 1);
}
get_block_at(pnd, bnSystem, NULL, 1);
}
}
}
else if(res > 0)
{
printf("ERROR - We got a NMT_ISO14443B ?\n");
}
else printf("ERROR - nfc_initiator_list_passive_targets: %i\n", res);
}
else printf("ERROR - nfc_initiator_init: %i\n", res);
nfc_close(pnd);
}
else printf("ERROR - nfc_open\n");
nfc_exit(context);
}
else printf("ERROR - nfc_init\n");
return 0;
}
bool get_info(const nfc_target *pnt, uint8_t *pnbBlock, uint8_t *pbnSystem)
{
bool bRet = false, bIsLegacy = false;
const uint8_t *p;
uint8_t chipId;
*pnbBlock = 0x10;
*pbnSystem = 0xff;
if(pnt->nm.nmt == NMT_ISO14443B2SR)
{
printf("Target : %s (%s)\nUID : ", str_nfc_modulation_type(pnt->nm.nmt), str_nfc_baud_rate(pnt->nm.nbr));
print_hex(pnt->nti.nsi.abtUID, sizeof(pnt->nti.nsi.abtUID));
printf("\n");
p = pnt->nti.nsi.abtUID;
if(p[7] == 0xd0) // ST25TB* / SR*
{
bRet = true;
chipId = p[5];
printf("Manuf : 0x%02x - %s\nChipId : 0x%02x - ", p[6], (p[6] == 0x02) ? "STMicroelectronics" : "other", chipId);
switch(chipId)
{
case 0x3f: // 00111111
printf("ST25TB02K");
*pnbBlock = 0x40;
break;
case 0x1f: // 00011111
printf("ST25TB04K");
*pnbBlock = 0x80;
break;
case 0x1b: // 00011011
printf("ST25TB512-AC");
break;
case 0x33: // 00110011
printf("ST25TB512-AT");
break;
default:
chipId >>= 2;
printf("legacy ? - 0x%02x - ", chipId);
bIsLegacy = 1;
switch(chipId)
{
case 0x02:
printf("SR176");
*pnbBlock = 0x0e;
*pbnSystem = 0x0f;
break;
case 0x03:
printf("SRIX4K");
*pnbBlock = 0x80;
break;
case 0x04:
printf("SRIX512");
break;
case 0x06:
printf("SRI512");
break;
case 0x07:
printf("SRI4K");
*pnbBlock = 0x80;
break;
case 0x0c:
printf("SRT512");
break;
default:
bIsLegacy = 0;
printf("unknown");
}
}
printf("\nSerial : 0x");
if(bIsLegacy)
{
printf("%1x", p[5] & 0x03);
}
printf("%02x%02x%02x%02x%02x\n|usr blk: %hhu\n|sys blk: %hhu\n", p[4], p[3], p[2], p[1], p[0], *pnbBlock, *pbnSystem);
}
else printf("WARNI - Last byte of UID isn\'t 0xd0, but 0x%02x (not ST25TB / SR series?)\n", p[7]);
}
else printf("ERROR - not a NMT_ISO14443B2SR ?\n");
return bRet;
}
bool get_block_at(nfc_device *pnd, uint8_t block, uint8_t value[4], bool bPrintIt)
{
bool bRet = false;
uint8_t tx[2] = {0x08, block}, rx[4];
int res;
res = nfc_initiator_transceive_bytes(pnd, tx, sizeof(tx), rx, sizeof(rx), 0);
if(res == 4)
{
bRet = true;
if(value)
{
memcpy(value, rx, sizeof(rx));
}
if(bPrintIt)
{
printf("[%02x] ", block);
print_hex(rx, sizeof(rx));
printf("\n");
}
}
else if(res > 0)
{
printf("ERROR - We got %i bytes?\n", res);
}
else printf("ERROR - nfc_initiator_transceive_bytes: %i\n", res);
return bRet;
}
void print_hex(const uint8_t *pbtData, const size_t szBytes)
{
size_t szPos;
for (szPos = 0; szPos < szBytes; szPos++)
{
printf("%02x ", pbtData[szPos]);
}
}