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fixed a lot of simulation issues

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This commit is contained in:
roel@libnfc.org 2012-06-29 10:24:05 +00:00
parent 912a3e94e4
commit 81cd0474cb
10 changed files with 325 additions and 119 deletions
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2
armsrc/appmain.c
View file

@ -706,7 +706,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
ReaderIso14443a(c, &ack); ReaderIso14443a(c, &ack);
break; break;
case CMD_SIMULATE_TAG_ISO_14443a: case CMD_SIMULATE_TAG_ISO_14443a:
SimulateIso14443aTag(c->arg[0], c->arg[1]); // ## Simulate iso14443a tag - pass tag type & UID SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2]); // ## Simulate iso14443a tag - pass tag type & UID
break; break;
case CMD_READER_MIFARE: case CMD_READER_MIFARE:

16
armsrc/apps.h
View file

@ -18,7 +18,19 @@ typedef unsigned char byte_t;
// The large multi-purpose buffer, typically used to hold A/D samples, // The large multi-purpose buffer, typically used to hold A/D samples,
// maybe processed in some way. // maybe processed in some way.
uint32_t BigBuf[8000]; uint32_t BigBuf[10000];
// BIG CHANGE - UNDERSTAND THIS BEFORE WE COMMIT
#define TRACE_OFFSET 0
#define TRACE_SIZE 3000
#define RECV_CMD_OFFSET 3032
#define RECV_CMD_SIZE 64
#define RECV_RES_OFFSET 3096
#define RECV_RES_SIZE 64
#define DMA_BUFFER_OFFSET 3160
#define DMA_BUFFER_SIZE 4096
#define FREE_BUFFER_OFFSET 7256
#define FREE_BUFFER_SIZE 2744
extern const uint8_t OddByteParity[256]; extern const uint8_t OddByteParity[256];
extern uint8_t *trace; // = (uint8_t *) BigBuf; extern uint8_t *trace; // = (uint8_t *) BigBuf;
extern int traceLen; // = 0; extern int traceLen; // = 0;
@ -113,7 +125,7 @@ void RAMFUNC SnoopIso14443(void);
/// iso14443a.h /// iso14443a.h
void RAMFUNC SnoopIso14443a(void); void RAMFUNC SnoopIso14443a(void);
void SimulateIso14443aTag(int tagType, int TagUid); // ## simulate iso14443a tag void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd); // ## simulate iso14443a tag
void ReaderIso14443a(UsbCommand * c, UsbCommand * ack); void ReaderIso14443a(UsbCommand * c, UsbCommand * ack);
// Also used in iclass.c // Also used in iclass.c
int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader); int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader);

80
armsrc/iclass.c
View file

@ -60,22 +60,6 @@ static int timeout = 4096;
#define SEC_Y 0x00 #define SEC_Y 0x00
#define SEC_Z 0xc0 #define SEC_Z 0xc0
// SAME AS IN iso14443a.
#define RECV_CMD_OFFSET 3032
#define RECV_RES_OFFSET 3096
#define DMA_BUFFER_OFFSET 3160
#define DMA_BUFFER_SIZE 4096
#define TRACE_LENGTH 3000
uint32_t SwapBits(uint32_t value, int nrbits) {
int i;
uint32_t newvalue = 0;
for(i = 0; i < nrbits; i++) {
newvalue ^= ((value >> i) & 1) << (nrbits - 1 - i);
}
return newvalue;
}
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay); static int SendIClassAnswer(uint8_t *resp, int respLen, int delay);
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -687,7 +671,7 @@ void RAMFUNC SnoopIClass(void)
// #define RECV_RES_OFFSET 3096 // #define RECV_RES_OFFSET 3096
// #define DMA_BUFFER_OFFSET 3160 // #define DMA_BUFFER_OFFSET 3160
// #define DMA_BUFFER_SIZE 4096 // #define DMA_BUFFER_SIZE 4096
// #define TRACE_LENGTH 3000 // #define TRACE_SIZE 3000
// We won't start recording the frames that we acquire until we trigger; // We won't start recording the frames that we acquire until we trigger;
// a good trigger condition to get started is probably when we see a // a good trigger condition to get started is probably when we see a
@ -816,7 +800,7 @@ void RAMFUNC SnoopIClass(void)
trace[traceLen++] = Uart.byteCnt; trace[traceLen++] = Uart.byteCnt;
memcpy(trace+traceLen, receivedCmd, Uart.byteCnt); memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
traceLen += Uart.byteCnt; traceLen += Uart.byteCnt;
if(traceLen > TRACE_LENGTH) break; if(traceLen > TRACE_SIZE) break;
//} //}
/* And ready to receive another command. */ /* And ready to receive another command. */
Uart.state = STATE_UNSYNCD; Uart.state = STATE_UNSYNCD;
@ -848,7 +832,7 @@ void RAMFUNC SnoopIClass(void)
trace[traceLen++] = Demod.len; trace[traceLen++] = Demod.len;
memcpy(trace+traceLen, receivedResponse, Demod.len); memcpy(trace+traceLen, receivedResponse, Demod.len);
traceLen += Demod.len; traceLen += Demod.len;
if(traceLen > TRACE_LENGTH) break; if(traceLen > TRACE_SIZE) break;
//triggered = TRUE; //triggered = TRUE;
@ -1011,6 +995,11 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
{ {
uint8_t simType = arg0; uint8_t simType = arg0;
// Enable and clear the trace
tracing = TRUE;
traceLen = 0;
memset(trace, 0x44, TRACE_SIZE);
// CSN followed by two CRC bytes // CSN followed by two CRC bytes
uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 }; uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
@ -1039,29 +1028,32 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
uint8_t *resp; uint8_t *resp;
int respLen; int respLen;
uint8_t* respdata = NULL;
int respsize = 0;
uint8_t sof = 0x0f;
// Respond SOF -- takes 8 bytes // Respond SOF -- takes 8 bytes
uint8_t *resp1 = (((uint8_t *)BigBuf) + 800); uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
int resp1Len; int resp1Len;
// Anticollision CSN (rotated CSN) // Anticollision CSN (rotated CSN)
// 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit) // 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit)
uint8_t *resp2 = (((uint8_t *)BigBuf) + 810); uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 10);
int resp2Len; int resp2Len;
// CSN // CSN
// 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit) // 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit)
uint8_t *resp3 = (((uint8_t *)BigBuf) + 990); uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 190);
int resp3Len; int resp3Len;
// e-Purse // e-Purse
// 144: Takes 16 bytes for SOF/EOF and 8 * 16 = 128 bytes (2 bytes/bit) // 144: Takes 16 bytes for SOF/EOF and 8 * 16 = 128 bytes (2 bytes/bit)
uint8_t *resp4 = (((uint8_t *)BigBuf) + 1170); uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 370);
int resp4Len; int resp4Len;
// + 1720.. // + 1720..
uint8_t *receivedCmd = (uint8_t *)BigBuf; uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
memset(receivedCmd, 0x44, 400); memset(receivedCmd, 0x44, RECV_CMD_SIZE);
int len; int len;
// Prepare card messages // Prepare card messages
@ -1102,28 +1094,38 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
if(receivedCmd[0] == 0x0a) { if(receivedCmd[0] == 0x0a) {
// Reader in anticollission phase // Reader in anticollission phase
resp = resp1; respLen = resp1Len; //order = 1; resp = resp1; respLen = resp1Len; //order = 1;
respdata = &sof;
respsize = sizeof(sof);
//resp = resp2; respLen = resp2Len; order = 2; //resp = resp2; respLen = resp2Len; order = 2;
//DbpString("Hello request from reader:"); //DbpString("Hello request from reader:");
} else if(receivedCmd[0] == 0x0c) { } else if(receivedCmd[0] == 0x0c) {
// Reader asks for anticollission CSN // Reader asks for anticollission CSN
resp = resp2; respLen = resp2Len; //order = 2; resp = resp2; respLen = resp2Len; //order = 2;
respdata = response2;
respsize = sizeof(response2);
//DbpString("Reader requests anticollission CSN:"); //DbpString("Reader requests anticollission CSN:");
} else if(receivedCmd[0] == 0x81) { } else if(receivedCmd[0] == 0x81) {
// Reader selects anticollission CSN. // Reader selects anticollission CSN.
// Tag sends the corresponding real CSN // Tag sends the corresponding real CSN
resp = resp3; respLen = resp3Len; //order = 3; resp = resp3; respLen = resp3Len; //order = 3;
respdata = response3;
respsize = sizeof(response3);
//DbpString("Reader selects anticollission CSN:"); //DbpString("Reader selects anticollission CSN:");
} else if(receivedCmd[0] == 0x88) { } else if(receivedCmd[0] == 0x88) {
// Read e-purse (88 02) // Read e-purse (88 02)
resp = resp4; respLen = resp4Len; //order = 4; resp = resp4; respLen = resp4Len; //order = 4;
respdata = response4;
respsize = sizeof(response4);
LED_B_ON(); LED_B_ON();
} else if(receivedCmd[0] == 0x05) { } else if(receivedCmd[0] == 0x05) {
// Reader random and reader MAC!!! // Reader random and reader MAC!!!
// Lets store this ;-) // Lets store this ;-)
/*
Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x", Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
response3[0], response3[1], response3[2], response3[0], response3[1], response3[2],
response3[3], response3[4], response3[5], response3[3], response3[4], response3[5],
response3[6], response3[7]); response3[6], response3[7]);
*/
Dbprintf("READER AUTH (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x", Dbprintf("READER AUTH (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",
len, len,
receivedCmd[0], receivedCmd[1], receivedCmd[2], receivedCmd[0], receivedCmd[1], receivedCmd[2],
@ -1133,14 +1135,13 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
// Do not respond // Do not respond
// We do not know what to answer, so lets keep quit // We do not know what to answer, so lets keep quit
resp = resp1; respLen = 0; //order = 5; resp = resp1; respLen = 0; //order = 5;
respdata = NULL;
respsize = 0;
} else if(receivedCmd[0] == 0x00 && len == 1) { } else if(receivedCmd[0] == 0x00 && len == 1) {
// Reader ends the session // Reader ends the session
resp = resp1; respLen = 0; //order = 0; resp = resp1; respLen = 0; //order = 0;
/* } else if(receivedCmd[0] == 0x50) { respdata = NULL;
// Received a HALT respsize = 0;
resp = resp1; respLen = 0; order = 5; // Do nothing
DbpString("Reader requested we HALT!:");
*/
} else { } else {
// Never seen this command before // Never seen this command before
Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x", Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
@ -1150,10 +1151,10 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
receivedCmd[6], receivedCmd[7], receivedCmd[8]); receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond // Do not respond
resp = resp1; respLen = 0; //order = 0; resp = resp1; respLen = 0; //order = 0;
respdata = NULL;
respsize = 0;
} }
memset(receivedCmd, 0x44, 32);
if(cmdsRecvd > 999) { if(cmdsRecvd > 999) {
DbpString("1000 commands later..."); DbpString("1000 commands later...");
break; break;
@ -1162,11 +1163,20 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
cmdsRecvd++; cmdsRecvd++;
} }
if(respLen <= 0) continue; if(respLen > 0) {
SendIClassAnswer(resp, respLen, 21); SendIClassAnswer(resp, respLen, 21);
} }
if (tracing) {
LogTrace(receivedCmd,len, 0, Uart.parityBits, TRUE);
if (respdata != NULL) {
LogTrace(respdata,respsize, 0, SwapBits(GetParity(respdata,respsize),respsize), FALSE);
}
}
memset(receivedCmd, 0x44, RECV_CMD_SIZE);
}
Dbprintf("%x", cmdsRecvd); Dbprintf("%x", cmdsRecvd);
LED_A_OFF(); LED_A_OFF();
LED_B_OFF(); LED_B_OFF();
@ -1428,7 +1438,7 @@ void ReaderIClass(uint8_t arg0) {
LED_A_ON(); LED_A_ON();
for(;;) { for(;;) {
if(traceLen > TRACE_LENGTH || BUTTON_PRESS()) break; if(traceLen > TRACE_SIZE || BUTTON_PRESS()) break;
// Send act_all // Send act_all
ReaderTransmitIClass(act_all, 1); ReaderTransmitIClass(act_all, 1);

36
armsrc/iso14443.c
View file

@ -22,7 +22,7 @@
#define DEMOD_TRACE_SIZE 4096 #define DEMOD_TRACE_SIZE 4096
#define READER_TAG_BUFFER_SIZE 2048 #define READER_TAG_BUFFER_SIZE 2048
#define TAG_READER_BUFFER_SIZE 2048 #define TAG_READER_BUFFER_SIZE 2048
#define DMA_BUFFER_SIZE 1024 #define DEMOD_DMA_BUFFER_SIZE 1024
//============================================================================= //=============================================================================
// An ISO 14443 Type B tag. We listen for commands from the reader, using // An ISO 14443 Type B tag. We listen for commands from the reader, using
@ -652,8 +652,8 @@ static void GetSamplesFor14443Demod(int weTx, int n, int quiet)
// Setup for the DMA. // Setup for the DMA.
dmaBuf = (int8_t *)(BigBuf + 32); dmaBuf = (int8_t *)(BigBuf + 32);
upTo = dmaBuf; upTo = dmaBuf;
lastRxCounter = DMA_BUFFER_SIZE; lastRxCounter = DEMOD_DMA_BUFFER_SIZE;
FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE); FpgaSetupSscDma((uint8_t *)dmaBuf, DEMOD_DMA_BUFFER_SIZE);
// Signal field is ON with the appropriate LED: // Signal field is ON with the appropriate LED:
if (weTx) LED_D_ON(); else LED_D_OFF(); if (weTx) LED_D_ON(); else LED_D_OFF();
@ -666,20 +666,20 @@ static void GetSamplesFor14443Demod(int weTx, int n, int quiet)
int behindBy = lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR; int behindBy = lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR;
if(behindBy > max) max = behindBy; if(behindBy > max) max = behindBy;
while(((lastRxCounter-AT91C_BASE_PDC_SSC->PDC_RCR) & (DMA_BUFFER_SIZE-1)) while(((lastRxCounter-AT91C_BASE_PDC_SSC->PDC_RCR) & (DEMOD_DMA_BUFFER_SIZE-1))
> 2) > 2)
{ {
ci = upTo[0]; ci = upTo[0];
cq = upTo[1]; cq = upTo[1];
upTo += 2; upTo += 2;
if(upTo - dmaBuf > DMA_BUFFER_SIZE) { if(upTo - dmaBuf > DEMOD_DMA_BUFFER_SIZE) {
upTo -= DMA_BUFFER_SIZE; upTo -= DEMOD_DMA_BUFFER_SIZE;
AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo; AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo;
AT91C_BASE_PDC_SSC->PDC_RNCR = DMA_BUFFER_SIZE; AT91C_BASE_PDC_SSC->PDC_RNCR = DEMOD_DMA_BUFFER_SIZE;
} }
lastRxCounter -= 2; lastRxCounter -= 2;
if(lastRxCounter <= 0) { if(lastRxCounter <= 0) {
lastRxCounter += DMA_BUFFER_SIZE; lastRxCounter += DEMOD_DMA_BUFFER_SIZE;
} }
samples += 2; samples += 2;
@ -1028,7 +1028,7 @@ void ReadSTMemoryIso14443(uint32_t parameter,uint32_t dwLast)
* 0-4095 : Demodulated samples receive (4096 bytes) - DEMOD_TRACE_SIZE * 0-4095 : Demodulated samples receive (4096 bytes) - DEMOD_TRACE_SIZE
* 4096-6143 : Last Received command, 2048 bytes (reader->tag) - READER_TAG_BUFFER_SIZE * 4096-6143 : Last Received command, 2048 bytes (reader->tag) - READER_TAG_BUFFER_SIZE
* 6144-8191 : Last Received command, 2048 bytes(tag->reader) - TAG_READER_BUFFER_SIZE * 6144-8191 : Last Received command, 2048 bytes(tag->reader) - TAG_READER_BUFFER_SIZE
* 8192-9215 : DMA Buffer, 1024 bytes (samples) - DMA_BUFFER_SIZE * 8192-9215 : DMA Buffer, 1024 bytes (samples) - DEMOD_DMA_BUFFER_SIZE
*/ */
void RAMFUNC SnoopIso14443(void) void RAMFUNC SnoopIso14443(void)
{ {
@ -1077,7 +1077,7 @@ void RAMFUNC SnoopIso14443(void)
Dbprintf(" Trace: %i bytes", DEMOD_TRACE_SIZE); Dbprintf(" Trace: %i bytes", DEMOD_TRACE_SIZE);
Dbprintf(" Reader -> tag: %i bytes", READER_TAG_BUFFER_SIZE); Dbprintf(" Reader -> tag: %i bytes", READER_TAG_BUFFER_SIZE);
Dbprintf(" tag -> Reader: %i bytes", TAG_READER_BUFFER_SIZE); Dbprintf(" tag -> Reader: %i bytes", TAG_READER_BUFFER_SIZE);
Dbprintf(" DMA: %i bytes", DMA_BUFFER_SIZE); Dbprintf(" DMA: %i bytes", DEMOD_DMA_BUFFER_SIZE);
// And put the FPGA in the appropriate mode // And put the FPGA in the appropriate mode
@ -1091,18 +1091,18 @@ void RAMFUNC SnoopIso14443(void)
// Setup for the DMA. // Setup for the DMA.
FpgaSetupSsc(); FpgaSetupSsc();
upTo = dmaBuf; upTo = dmaBuf;
lastRxCounter = DMA_BUFFER_SIZE; lastRxCounter = DEMOD_DMA_BUFFER_SIZE;
FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE); FpgaSetupSscDma((uint8_t *)dmaBuf, DEMOD_DMA_BUFFER_SIZE);
LED_A_ON(); LED_A_ON();
// And now we loop, receiving samples. // And now we loop, receiving samples.
for(;;) { for(;;) {
int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) & int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) &
(DMA_BUFFER_SIZE-1); (DEMOD_DMA_BUFFER_SIZE-1);
if(behindBy > maxBehindBy) { if(behindBy > maxBehindBy) {
maxBehindBy = behindBy; maxBehindBy = behindBy;
if(behindBy > (DMA_BUFFER_SIZE-2)) { // TODO: understand whether we can increase/decrease as we want or not? if(behindBy > (DEMOD_DMA_BUFFER_SIZE-2)) { // TODO: understand whether we can increase/decrease as we want or not?
Dbprintf("blew circular buffer! behindBy=0x%x", behindBy); Dbprintf("blew circular buffer! behindBy=0x%x", behindBy);
goto done; goto done;
} }
@ -1113,11 +1113,11 @@ void RAMFUNC SnoopIso14443(void)
cq = upTo[1]; cq = upTo[1];
upTo += 2; upTo += 2;
lastRxCounter -= 2; lastRxCounter -= 2;
if(upTo - dmaBuf > DMA_BUFFER_SIZE) { if(upTo - dmaBuf > DEMOD_DMA_BUFFER_SIZE) {
upTo -= DMA_BUFFER_SIZE; upTo -= DEMOD_DMA_BUFFER_SIZE;
lastRxCounter += DMA_BUFFER_SIZE; lastRxCounter += DEMOD_DMA_BUFFER_SIZE;
AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo; AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo;
AT91C_BASE_PDC_SSC->PDC_RNCR = DMA_BUFFER_SIZE; AT91C_BASE_PDC_SSC->PDC_RNCR = DEMOD_DMA_BUFFER_SIZE;
} }
samples += 2; samples += 2;

180
armsrc/iso14443a.c
View file

@ -104,7 +104,7 @@ void AppendCrc14443a(uint8_t* data, int len)
int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader) int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader)
{ {
// Return when trace is full // Return when trace is full
if (traceLen >= TRACE_LENGTH) return FALSE; if (traceLen >= TRACE_SIZE) return FALSE;
// Trace the random, i'm curious // Trace the random, i'm curious
rsamples += iSamples; rsamples += iSamples;
@ -624,7 +624,7 @@ void RAMFUNC SnoopIso14443a(void)
// #define RECV_RES_OFFSET 2096 // original (working as of 21/2/09) values // #define RECV_RES_OFFSET 2096 // original (working as of 21/2/09) values
// #define DMA_BUFFER_OFFSET 2160 // original (working as of 21/2/09) values // #define DMA_BUFFER_OFFSET 2160 // original (working as of 21/2/09) values
// #define DMA_BUFFER_SIZE 4096 // original (working as of 21/2/09) values // #define DMA_BUFFER_SIZE 4096 // original (working as of 21/2/09) values
// #define TRACE_LENGTH 2000 // original (working as of 21/2/09) values // #define TRACE_SIZE 2000 // original (working as of 21/2/09) values
// We won't start recording the frames that we acquire until we trigger; // We won't start recording the frames that we acquire until we trigger;
// a good trigger condition to get started is probably when we see a // a good trigger condition to get started is probably when we see a
@ -656,7 +656,7 @@ void RAMFUNC SnoopIso14443a(void)
int samples = 0; int samples = 0;
int rsamples = 0; int rsamples = 0;
memset(trace, 0x44, RECV_CMD_OFFSET); memset(trace, 0x44, TRACE_SIZE);
// Set up the demodulator for tag -> reader responses. // Set up the demodulator for tag -> reader responses.
Demod.output = receivedResponse; Demod.output = receivedResponse;
@ -724,7 +724,7 @@ void RAMFUNC SnoopIso14443a(void)
trace[traceLen++] = Uart.byteCnt; trace[traceLen++] = Uart.byteCnt;
memcpy(trace+traceLen, receivedCmd, Uart.byteCnt); memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
traceLen += Uart.byteCnt; traceLen += Uart.byteCnt;
if(traceLen > TRACE_LENGTH) break; if(traceLen > TRACE_SIZE) break;
} }
/* And ready to receive another command. */ /* And ready to receive another command. */
Uart.state = STATE_UNSYNCD; Uart.state = STATE_UNSYNCD;
@ -751,7 +751,7 @@ void RAMFUNC SnoopIso14443a(void)
trace[traceLen++] = Demod.len; trace[traceLen++] = Demod.len;
memcpy(trace+traceLen, receivedResponse, Demod.len); memcpy(trace+traceLen, receivedResponse, Demod.len);
traceLen += Demod.len; traceLen += Demod.len;
if(traceLen > TRACE_LENGTH) break; if(traceLen > TRACE_SIZE) break;
triggered = TRUE; triggered = TRUE;
@ -964,15 +964,102 @@ static int EmSendCmd14443aRaw(uint8_t *resp, int respLen, int correctionNeeded);
// Main loop of simulated tag: receive commands from reader, decide what // Main loop of simulated tag: receive commands from reader, decide what
// response to send, and send it. // response to send, and send it.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SimulateIso14443aTag(int tagType, int TagUid) void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
{ {
// Enable and clear the trace
tracing = TRUE;
traceLen = 0;
memset(trace, 0x44, TRACE_SIZE);
// This function contains the tag emulation // This function contains the tag emulation
uint8_t sak;
// The first response contains the ATQA (note: bytes are transmitted in reverse order).
uint8_t response1[2];
switch (tagType) {
case 1: { // MIFARE Classic
// Says: I am Mifare 1k - original line
response1[0] = 0x04;
response1[1] = 0x00;
sak = 0x08;
} break;
case 2: { // MIFARE Ultralight
// Says: I am a stupid memory tag, no crypto
response1[0] = 0x04;
response1[1] = 0x00;
sak = 0x00;
} break;
case 3: { // MIFARE DESFire
// Says: I am a DESFire tag, ph33r me
response1[0] = 0x04;
response1[1] = 0x03;
sak = 0x20;
} break;
case 4: { // ISO/IEC 14443-4
// Says: I am a javacard (JCOP)
response1[0] = 0x04;
response1[1] = 0x00;
sak = 0x28;
} break;
default: {
Dbprintf("Error: unkown tagtype (%d)",tagType);
return;
} break;
}
// The second response contains the (mandatory) first 24 bits of the UID
uint8_t response2[5];
// Check if the uid uses the (optional) part
uint8_t response2a[5];
if (uid_2nd) {
response2[0] = 0x88;
num_to_bytes(uid_1st,3,response2+1);
num_to_bytes(uid_2nd,4,response2a);
response2a[4] = response2a[0] ^ response2a[1] ^ response2a[2] ^ response2a[3];
// Configure the ATQA and SAK accordingly
response1[0] |= 0x40;
sak |= 0x04;
} else {
num_to_bytes(uid_1st,4,response2);
// Configure the ATQA and SAK accordingly
response1[0] &= 0xBF;
sak &= 0xFB;
}
// Calculate the BitCountCheck (BCC) for the first 4 bytes of the UID.
response2[4] = response2[0] ^ response2[1] ^ response2[2] ^ response2[3];
// Prepare the mandatory SAK (for 4 and 7 byte UID)
uint8_t response3[3];
response3[0] = sak;
ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
// Prepare the optional second SAK (for 7 byte UID), drop the cascade bit
uint8_t response3a[3];
response3a[0] = sak & 0xFB;
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
/*
// Check if the uid uses the (optional) second part
if (uid_2nd) {
// Configure the ATQA and SAK accordingly
response1[0] |= 0x40;
sak |= 0x04;
}
*/
//static const uint8_t response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cascade2 - 2nd half (4 bytes) of UID+ BCCheck
// Prepare protocol messages // Prepare protocol messages
// static const uint8_t cmd1[] = { 0x26 }; // static const uint8_t cmd1[] = { 0x26 };
// static const uint8_t response1[] = { 0x02, 0x00 }; // Says: I am Mifare 4k - original line - greg // static const uint8_t response1[] = { 0x02, 0x00 }; // Says: I am Mifare 4k - original line - greg
// //
static const uint8_t response1[] = { 0x44, 0x03 }; // Says: I am a DESFire Tag, ph33r me // uint8_t response1[] = { 0x44, 0x03 }; // Says: I am a DESFire Tag, ph33r me
// static const uint8_t response1[] = { 0x44, 0x00 }; // Says: I am a ULTRALITE Tag, 0wn me // static const uint8_t response1[] = { 0x44, 0x00 }; // Says: I am a ULTRALITE Tag, 0wn me
// UID response // UID response
@ -980,22 +1067,22 @@ void SimulateIso14443aTag(int tagType, int TagUid)
//static const uint8_t response2[] = { 0x9a, 0xe5, 0xe4, 0x43, 0xd8 }; // original value - greg //static const uint8_t response2[] = { 0x9a, 0xe5, 0xe4, 0x43, 0xd8 }; // original value - greg
// my desfire // my desfire
static const uint8_t response2[] = { 0x88, 0x04, 0x21, 0x3f, 0x4d }; // known uid - note cascade (0x88), 2nd byte (0x04) = NXP/Phillips // uint8_t response2[] = { 0x88, 0x04, 0x21, 0x3f, 0x4d }; // known uid - note cascade (0x88), 2nd byte (0x04) = NXP/Phillips
// When reader selects us during cascade1 it will send cmd3 // When reader selects us during cascade1 it will send cmd3
//uint8_t response3[] = { 0x04, 0x00, 0x00 }; // SAK Select (cascade1) successful response (ULTRALITE) //uint8_t response3[] = { 0x04, 0x00, 0x00 }; // SAK Select (cascade1) successful response (ULTRALITE)
uint8_t response3[] = { 0x24, 0x00, 0x00 }; // SAK Select (cascade1) successful response (DESFire) //uint8_t response3[] = { 0x24, 0x00, 0x00 }; // SAK Select (cascade1) successful response (DESFire)
ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]); //ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
// send cascade2 2nd half of UID // send cascade2 2nd half of UID
static const uint8_t response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cascade2 - 2nd half (4 bytes) of UID+ BCCheck //static const uint8_t response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cascade2 - 2nd half (4 bytes) of UID+ BCCheck
// NOTE : THE CRC on the above may be wrong as I have obfuscated the actual UID // NOTE : THE CRC on the above may be wrong as I have obfuscated the actual UID
// When reader selects us during cascade2 it will send cmd3a // When reader selects us during cascade2 it will send cmd3a
//uint8_t response3a[] = { 0x00, 0x00, 0x00 }; // SAK Select (cascade2) successful response (ULTRALITE) //uint8_t response3a[] = { 0x00, 0x00, 0x00 }; // SAK Select (cascade2) successful response (ULTRALITE)
uint8_t response3a[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire) //uint8_t response3a[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire)
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]); //ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
static const uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce static const uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
@ -1016,11 +1103,11 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
// //
// Respond with card type // Respond with card type
uint8_t *resp1 = (((uint8_t *)BigBuf) + 800); uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
int resp1Len; int resp1Len;
// Anticollision cascade1 - respond with uid // Anticollision cascade1 - respond with uid
uint8_t *resp2 = (((uint8_t *)BigBuf) + 970); uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 166);
int resp2Len; int resp2Len;
// Anticollision cascade2 - respond with 2nd half of uid if asked // Anticollision cascade2 - respond with 2nd half of uid if asked
@ -1029,22 +1116,23 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
int resp2aLen; int resp2aLen;
// Acknowledge select - cascade 1 // Acknowledge select - cascade 1
uint8_t *resp3 = (((uint8_t *)BigBuf) + 1310); uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*2));
int resp3Len; int resp3Len;
// Acknowledge select - cascade 2 // Acknowledge select - cascade 2
uint8_t *resp3a = (((uint8_t *)BigBuf) + 1480); uint8_t *resp3a = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*3));
int resp3aLen; int resp3aLen;
// Response to a read request - not implemented atm // Response to a read request - not implemented atm
uint8_t *resp4 = (((uint8_t *)BigBuf) + 1550); uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*4));
int resp4Len; int resp4Len;
// Authenticate response - nonce // Authenticate response - nonce
uint8_t *resp5 = (((uint8_t *)BigBuf) + 1720); uint8_t *resp5 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*5));
int resp5Len; int resp5Len;
uint8_t *receivedCmd = (uint8_t *)BigBuf; uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
// uint8_t *receivedCmd = (uint8_t *)BigBuf;
int len; int len;
//int i; //int i;
@ -1060,10 +1148,13 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
int happened2 = 0; int happened2 = 0;
int cmdsRecvd = 0; int cmdsRecvd = 0;
uint8_t* respdata = NULL;
int respsize = 0;
uint8_t nack = 0x04;
//int fdt_indicator; //int fdt_indicator;
memset(receivedCmd, 0x44, 400); memset(receivedCmd, 0x44, RECV_CMD_SIZE);
// Prepare the responses of the anticollision phase // Prepare the responses of the anticollision phase
// there will be not enough time to do this at the moment the reader sends it REQA // there will be not enough time to do this at the moment the reader sends it REQA
@ -1105,7 +1196,7 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
LED_A_ON(); LED_A_ON();
for(;;) { for(;;) {
if(!GetIso14443aCommandFromReader(receivedCmd, &len, 100)) { if(!GetIso14443aCommandFromReader(receivedCmd, &len, RECV_CMD_SIZE)) {
DbpString("button press"); DbpString("button press");
break; break;
} }
@ -1116,63 +1207,76 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
if(receivedCmd[0] == 0x26) { if(receivedCmd[0] == 0x26) {
// Received a REQUEST // Received a REQUEST
resp = resp1; respLen = resp1Len; order = 1; resp = resp1; respLen = resp1Len; order = 1;
respdata = response1;
respsize = sizeof(response1);
//DbpString("Hello request from reader:"); //DbpString("Hello request from reader:");
} else if(receivedCmd[0] == 0x52) { } else if(receivedCmd[0] == 0x52) {
// Received a WAKEUP // Received a WAKEUP
resp = resp1; respLen = resp1Len; order = 6; resp = resp1; respLen = resp1Len; order = 6;
// //DbpString("Wakeup request from reader:"); // //DbpString("Wakeup request from reader:");
respdata = response1;
respsize = sizeof(response1);
} else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x93) { // greg - cascade 1 anti-collision } else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x93) { // greg - cascade 1 anti-collision
// Received request for UID (cascade 1) // Received request for UID (cascade 1)
resp = resp2; respLen = resp2Len; order = 2; resp = resp2; respLen = resp2Len; order = 2;
// DbpString("UID (cascade 1) request from reader:"); // DbpString("UID (cascade 1) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]); // DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = response2;
respsize = sizeof(response2);
} else if(receivedCmd[1] == 0x20 && receivedCmd[0] ==0x95) { // greg - cascade 2 anti-collision } else if(receivedCmd[1] == 0x20 && receivedCmd[0] ==0x95) { // greg - cascade 2 anti-collision
// Received request for UID (cascade 2) // Received request for UID (cascade 2)
resp = resp2a; respLen = resp2aLen; order = 20; resp = resp2a; respLen = resp2aLen; order = 20;
// DbpString("UID (cascade 2) request from reader:"); // DbpString("UID (cascade 2) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]); // DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = response2a;
respsize = sizeof(response2a);
} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x93) { // greg - cascade 1 select } else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x93) { // greg - cascade 1 select
// Received a SELECT // Received a SELECT
resp = resp3; respLen = resp3Len; order = 3; resp = resp3; respLen = resp3Len; order = 3;
// DbpString("Select (cascade 1) request from reader:"); // DbpString("Select (cascade 1) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]); // DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = response3;
respsize = sizeof(response3);
} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x95) { // greg - cascade 2 select } else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x95) { // greg - cascade 2 select
// Received a SELECT // Received a SELECT
resp = resp3a; respLen = resp3aLen; order = 30; resp = resp3a; respLen = resp3aLen; order = 30;
// DbpString("Select (cascade 2) request from reader:"); // DbpString("Select (cascade 2) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]); // DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = response3a;
respsize = sizeof(response3a);
} else if(receivedCmd[0] == 0x30) { } else if(receivedCmd[0] == 0x30) {
// Received a READ // Received a READ
resp = resp4; respLen = resp4Len; order = 4; // Do nothing resp = resp4; respLen = resp4Len; order = 4; // Do nothing
Dbprintf("Read request from reader: %x %x %x", Dbprintf("Read request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]); receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = &nack;
respsize = sizeof(nack); // 4-bit answer
} else if(receivedCmd[0] == 0x50) { } else if(receivedCmd[0] == 0x50) {
// Received a HALT // Received a HALT
resp = resp1; respLen = 0; order = 5; // Do nothing resp = resp1; respLen = 0; order = 5; // Do nothing
DbpString("Reader requested we HALT!:"); DbpString("Reader requested we HALT!:");
respdata = NULL;
respsize = 0;
} else if(receivedCmd[0] == 0x60) { } else if(receivedCmd[0] == 0x60) {
// Received an authentication request // Received an authentication request
resp = resp5; respLen = resp5Len; order = 7; resp = resp5; respLen = resp5Len; order = 7;
Dbprintf("Authenticate request from reader: %x %x %x", Dbprintf("Authenticate request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]); receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = NULL;
respsize = 0;
} else if(receivedCmd[0] == 0xE0) { } else if(receivedCmd[0] == 0xE0) {
// Received a RATS request // Received a RATS request
resp = resp1; respLen = 0;order = 70; resp = resp1; respLen = 0;order = 70;
Dbprintf("RATS request from reader: %x %x %x", Dbprintf("RATS request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]); receivedCmd[0], receivedCmd[1], receivedCmd[2]);
respdata = NULL;
respsize = 0;
} else { } else {
// Never seen this command before // Never seen this command before
Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x", Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
@ -1182,6 +1286,8 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
receivedCmd[6], receivedCmd[7], receivedCmd[8]); receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond // Do not respond
resp = resp1; respLen = 0; order = 0; resp = resp1; respLen = 0; order = 0;
respdata = NULL;
respsize = 0;
} }
// Count number of wakeups received after a halt // Count number of wakeups received after a halt
@ -1196,7 +1302,6 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
//i = 0; //i = 0;
} }
memset(receivedCmd, 0x44, 32);
if(cmdsRecvd > 999) { if(cmdsRecvd > 999) {
DbpString("1000 commands later..."); DbpString("1000 commands later...");
@ -1206,13 +1311,22 @@ ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
cmdsRecvd++; cmdsRecvd++;
} }
if(respLen <= 0) continue; if(respLen > 0) {
//---------------------------- //----------------------------
//u = 0; //u = 0;
//b = 0x00; //b = 0x00;
//fdt_indicator = FALSE; //fdt_indicator = FALSE;
EmSendCmd14443aRaw(resp, respLen, receivedCmd[0] == 0x52); EmSendCmd14443aRaw(resp, respLen, receivedCmd[0] == 0x52);
}
if (tracing) {
LogTrace(receivedCmd,len, 0, Uart.parityBits, TRUE);
if (respdata != NULL) {
LogTrace(respdata,respsize, 0, SwapBits(GetParity(respdata,respsize),respsize), FALSE);
}
}
memset(receivedCmd, 0x44, RECV_CMD_SIZE);
/* // Modulate Manchester /* // Modulate Manchester
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00; AT91C_BASE_SSC->SSC_THR = 0x00;
@ -2079,7 +2193,7 @@ void Mifare1ksim(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
} }
if (cardSTATE != MFEMUL_NOFIELD) { if (cardSTATE != MFEMUL_NOFIELD) {
res = EmGetCmd(receivedCmd, &len, 100); // (+ nextCycleTimeout) res = EmGetCmd(receivedCmd, &len, RECV_CMD_SIZE); // (+ nextCycleTimeout)
if (res == 2) { if (res == 2) {
cardSTATE = MFEMUL_NOFIELD; cardSTATE = MFEMUL_NOFIELD;
LEDsoff(); LEDsoff();

6
armsrc/iso14443a.h
View file

@ -14,12 +14,6 @@
#define __ISO14443A_H #define __ISO14443A_H
#include "common.h" #include "common.h"
// BIG CHANGE - UNDERSTAND THIS BEFORE WE COMMIT
#define RECV_CMD_OFFSET 3032
#define RECV_RES_OFFSET 3096
#define DMA_BUFFER_OFFSET 3160
#define DMA_BUFFER_SIZE 4096
#define TRACE_LENGTH 3000
// mifare reader over DMA buffer (SnoopIso14443a())!!! // mifare reader over DMA buffer (SnoopIso14443a())!!!
#define MIFARE_BUFF_OFFSET 3560 // \/ \/ \/ #define MIFARE_BUFF_OFFSET 3560 // \/ \/ \/
// card emulator memory // card emulator memory

9
armsrc/util.c
View file

@ -12,6 +12,15 @@
#include "util.h" #include "util.h"
#include "string.h" #include "string.h"
uint32_t SwapBits(uint32_t value, int nrbits) {
int i;
uint32_t newvalue = 0;
for(i = 0; i < nrbits; i++) {
newvalue ^= ((value >> i) & 1) << (nrbits - 1 - i);
}
return newvalue;
}
void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
{ {
while (len--) { while (len--) {

1
armsrc/util.h
View file

@ -28,6 +28,7 @@
#define BUTTON_DOUBLE_CLICK -2 #define BUTTON_DOUBLE_CLICK -2
#define BUTTON_ERROR -99 #define BUTTON_ERROR -99
uint32_t SwapBits(uint32_t value, int nrbits);
void num_to_bytes(uint64_t n, size_t len, uint8_t* dest); void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
uint64_t bytes_to_num(uint8_t* src, size_t len); uint64_t bytes_to_num(uint8_t* src, size_t len);

74
client/cmdhf14a.c
View file

@ -203,17 +203,83 @@ int CmdHF14AReader(const char *Cmd)
// ## greg - added ability to specify tag UID // ## greg - added ability to specify tag UID
int CmdHF14ASim(const char *Cmd) int CmdHF14ASim(const char *Cmd)
{ {
UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
// Retrieve the tag type
uint8_t tagtype = param_get8ex(Cmd,0,0,10);
// When no argument was given, just print help message
if (tagtype == 0) {
PrintAndLog("");
PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
PrintAndLog("");
PrintAndLog(" syntax: hf 14a sim <type> <uid>");
PrintAndLog(" types: 1 = MIFARE Classic");
PrintAndLog(" 2 = MIFARE Ultralight");
PrintAndLog(" 3 = MIFARE DESFIRE");
PrintAndLog(" 4 = ISO/IEC 14443-4");
PrintAndLog("");
return 1;
}
// Store the tag type
c.arg[0] = tagtype;
// Retrieve the full 4 or 7 byte long uid
uint64_t long_uid = param_get64ex(Cmd,1,0,16);
// Are we handling the (optional) second part uid?
if (long_uid > 0xffffffff) {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014llx)",long_uid);
// Store the second part
c.arg[2] = (long_uid & 0xffffffff);
long_uid >>= 32;
// Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
c.arg[1] = (long_uid & 0xffffff);
} else {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
// Only store the first part
c.arg[1] = long_uid & 0xffffffff;
}
/*
// At lease save the mandatory first part of the UID
c.arg[0] = long_uid & 0xffffffff;
// At lease save the mandatory first part of the UID
c.arg[0] = long_uid & 0xffffffff;
if (c.arg[1] == 0) {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
}
switch (c.arg[0]) {
case 1: {
PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
} break;
case 2: {
PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
} break;
default: {
PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
PrintAndLog(" type1: 4 ",c.arg[0]);
return 1;
} break;
}
*/
/*
unsigned int hi = 0, lo = 0; unsigned int hi = 0, lo = 0;
int n = 0, i = 0; int n = 0, i = 0;
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi= (hi << 4) | (lo >> 28); hi= (hi << 4) | (lo >> 28);
lo= (lo << 4) | (n & 0xf); lo= (lo << 4) | (n & 0xf);
} }
*/
// c.arg should be set to *Cmd or convert *Cmd to the correct format for a uid // UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a, {hi, lo, 0}}; // PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
PrintAndLog("Emulating 14443A TAG with UID %x%16x", hi, lo);
SendCommand(&c); SendCommand(&c);
return 0; return 0;
} }

2
client/util.c
View file

@ -166,7 +166,7 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
int bg, en; int bg, en;
if (!param_getptr(line, &bg, &en, paramnum)) if (!param_getptr(line, &bg, &en, paramnum))
return strtol(&line[bg], NULL, base); return strtoll(&line[bg], NULL, base);
else else
return deflt; return deflt;