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nfc-emulate-ndef now using easy framing & fix timing issues

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This commit is contained in:
Philippe Teuwen 2010-10-05 10:05:22 +00:00
parent 2024e5f904
commit d75e25d29d
2 changed files with 38 additions and 31 deletions
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63
examples/nfc-emulate-ndef.c
View file

@ -36,8 +36,6 @@
#include <nfc/nfc-messages.h> #include <nfc/nfc-messages.h>
#include "nfc-utils.h" #include "nfc-utils.h"
// FIXME doesn't use a pn53x specific function, use libnfc's API
#include "chips/pn53x.h"
#define MAX_FRAME_LEN 264 #define MAX_FRAME_LEN 264
@ -48,8 +46,7 @@ static bool quiet_output = false;
#define SYMBOL_PARAM_fISO14443_4_PICC 0x20 #define SYMBOL_PARAM_fISO14443_4_PICC 0x20
bool bool send_bytes (const byte_t * pbtTx, const size_t szTxLen)
transmit_bytes (const byte_t * pbtTx, const size_t szTxLen)
{ {
// Show transmitted command // Show transmitted command
if (!quiet_output) { if (!quiet_output) {
@ -60,12 +57,17 @@ transmit_bytes (const byte_t * pbtTx, const size_t szTxLen)
// Transmit the command bytes // Transmit the command bytes
if (!nfc_target_send_bytes(pnd, pbtTx, szTxLen)) { if (!nfc_target_send_bytes(pnd, pbtTx, szTxLen)) {
nfc_perror (pnd, "nfc_target_send_bytes"); nfc_perror (pnd, "nfc_target_send_bytes");
return false; exit(EXIT_FAILURE);
} }
// Succesful transfer
return true;
}
bool receive_bytes (void)
{
if (!nfc_target_receive_bytes(pnd,abtRx,&szRxLen)) { if (!nfc_target_receive_bytes(pnd,abtRx,&szRxLen)) {
nfc_perror (pnd, "nfc_target_receive_bytes"); nfc_perror (pnd, "nfc_target_receive_bytes");
return false; exit(EXIT_FAILURE);
} }
// Show received answer // Show received answer
@ -100,9 +102,6 @@ main (int argc, char *argv[])
.nti.nai.szAtsLen = 0, .nti.nai.szAtsLen = 0,
}; };
// FIXME doesn't use a pn53x specific function, use libnfc's API
pn53x_set_parameters(pnd,SYMBOL_PARAM_fISO14443_4_PICC);
if (!nfc_target_init (pnd, NTM_ISO14443_4_PICC, nt, abtRx, &szRxLen)) { if (!nfc_target_init (pnd, NTM_ISO14443_4_PICC, nt, abtRx, &szRxLen)) {
nfc_perror (pnd, "nfc_target_init"); nfc_perror (pnd, "nfc_target_init");
ERR("Could not come out of auto-emulation, no command was received"); ERR("Could not come out of auto-emulation, no command was received");
@ -117,35 +116,41 @@ main (int argc, char *argv[])
//Receiving data: e0 40 //Receiving data: e0 40
//= RATS, FSD=48 //= RATS, FSD=48
//Actually PN532 already sent back the ATS so nothing to send now //Actually PN532 already sent back the ATS so nothing to send now
transmit_bytes((const byte_t*)"\x0a\x00\x6a\x87",4); receive_bytes();
//Receiving data: 0b 00 00 a4 04 00 06 e1 03 e1 03 e1 03 //Receiving data: 00 a4 04 00 06 e1 03 e1 03 e1 03
//= App Select by name "e103e103e103" //= App Select by name "e103e103e103"
transmit_bytes((const byte_t*)"\x0b\x00\x6a\x87",4); send_bytes((const byte_t*)"\x6a\x87",2);
//Receiving data: 0a 00 00 a4 04 00 07 d2 76 00 00 85 01 00 receive_bytes();
//Receiving data: 00 a4 04 00 06 e1 03 e1 03 e1 03
//= App Select by name "e103e103e103"
send_bytes((const byte_t*)"\x6a\x87",2);
receive_bytes();
//Receiving data: 00 a4 04 00 07 d2 76 00 00 85 01 00
//= App Select by name "D2760000850100" //= App Select by name "D2760000850100"
transmit_bytes((const byte_t*)"\x0a\x00\x90\x00",4); send_bytes((const byte_t*)"\x90\x00",2);
//Receiving data: 0b 00 00 a4 00 00 02 e1 03 receive_bytes();
//Receiving data: 00 a4 00 00 02 e1 03
//= Select CC //= Select CC
transmit_bytes((const byte_t*)"\x0b\x00\x90\x00",4); send_bytes((const byte_t*)"\x90\x00",2);
//Receiving data: 0a 00 00 b0 00 00 0f receive_bytes();
//Receiving data: 00 b0 00 00 0f
//= ReadBinary CC //= ReadBinary CC
//We send CC + OK //We send CC + OK
transmit_bytes((const byte_t*)"\x0a\x00\x00\x0f\x10\x00\x3b\x00\x34\x04\x06\xe1\x04\x0e\xe0\x00\x00\x90\x00",19); send_bytes((const byte_t*)"\x00\x0f\x10\x00\x3b\x00\x34\x04\x06\xe1\x04\x0e\xe0\x00\x00\x90\x00",17);
//Receiving data: 0b 00 00 a4 00 00 02 e1 04 receive_bytes();
//Receiving data: 00 a4 00 00 02 e1 04
//= Select NDEF //= Select NDEF
transmit_bytes((const byte_t*)"\x0b\x00\x90\x00",4); send_bytes((const byte_t*)"\x90\x00",2);
//Receiving data: 0a 00 00 b0 00 00 02 receive_bytes();
//Receiving data: 00 b0 00 00 02
//= Read first 2 NDEF bytes //= Read first 2 NDEF bytes
//Sent NDEF Length=0x21 //Sent NDEF Length=0x21
transmit_bytes((const byte_t*)"\x0a\x00\x00\x21\x90\x00",6); send_bytes((const byte_t*)"\x00\x21\x90\x00",4);
//Receiving data: 0b 00 00 b0 00 02 21 receive_bytes();
transmit_bytes((const byte_t*)"\x0b\x00\xd1\x02\x1c\x53\x70\x91\x01\x09\x54\x02\x65\x6e\x4c\x69\x62\x6e\x66\x63\x51\x01\x0b\x55\x03\x6c\x69\x62\x6e\x66\x63\x2e\x6f\x72\x67\x90\x00",37); //Receiving data: 00 b0 00 02 21
//Receiving data: ca 00 //= Read remaining of NDEF file
//= S(DESELECT) send_bytes((const byte_t*)"\xd1\x02\x1c\x53\x70\x91\x01\x09\x54\x02\x65\x6e\x4c\x69\x62\x6e\x66\x63\x51\x01\x0b\x55\x03\x6c\x69\x62\x6e\x66\x63\x2e\x6f\x72\x67\x90\x00",35);
// We don't have to reply ourselves because when using
// ISO/IEC14443-4 PICC mode, S(DESELECT) response is automatic
nfc_disconnect(pnd); nfc_disconnect(pnd);
exit (EXIT_SUCCESS); exit (EXIT_SUCCESS);
} }

6
libnfc/chips/pn53x.c
View file

@ -70,6 +70,8 @@ const byte_t pncmd_initiator_auto_poll[5] = { 0xD4, 0x60 };
const byte_t pncmd_target_get_data[2] = { 0xD4, 0x86 }; const byte_t pncmd_target_get_data[2] = { 0xD4, 0x86 };
const byte_t pncmd_target_set_data[264] = { 0xD4, 0x8E }; const byte_t pncmd_target_set_data[264] = { 0xD4, 0x8E };
const byte_t pncmd_target_init[39] = { 0xD4, 0x8C }; const byte_t pncmd_target_init[39] = { 0xD4, 0x8C };
//Example of default values:
//const byte_t pncmd_target_init[39] = { 0xD4, 0x8C, 0x00, 0x08, 0x00, 0x12, 0x34, 0x56, 0x40, 0x01, 0xFE, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xFF, 0xFF, 0xAA, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11, 0x00, 0x00 };
const byte_t pncmd_target_virtual_card[4] = { 0xD4, 0x14 }; const byte_t pncmd_target_virtual_card[4] = { 0xD4, 0x14 };
const byte_t pncmd_target_receive[2] = { 0xD4, 0x88 }; const byte_t pncmd_target_receive[2] = { 0xD4, 0x88 };
const byte_t pncmd_target_send[264] = { 0xD4, 0x90 }; const byte_t pncmd_target_send[264] = { 0xD4, 0x90 };
@ -947,7 +949,7 @@ pn53x_target_init (nfc_device_t * pnd, const nfc_target_mode_t ntm, const nfc_ta
return false; return false;
} }
pn53x_set_parameters(pnd, SYMBOL_PARAM_fISO14443_4_PICC); pn53x_set_parameters(pnd, SYMBOL_PARAM_fISO14443_4_PICC);
pn53x_configure(pnd, NDO_EASY_FRAMING, false); pn53x_configure(pnd, NDO_EASY_FRAMING, true);
break; break;
default: default:
@ -1027,7 +1029,7 @@ pn53x_TgInitAsTarget (nfc_device_t * pnd, nfc_target_mode_t ntm,
if (pbtNFCID3t) { if (pbtNFCID3t) {
memcpy(abtCmd+27, pbtNFCID3t, 10); memcpy(abtCmd+27, pbtNFCID3t, 10);
} }
// TODO Handle General bytes and Tk (Historical bytes) lenght // TODO Handle General bytes and Tk (Historical bytes) length
// Request the initialization as a target // Request the initialization as a target
szRxLen = MAX_FRAME_LEN; szRxLen = MAX_FRAME_LEN;