ReaderIso14443a(c, &ack);
break;
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;
case CMD_READER_MIFARE:
// The large multi-purpose buffer, typically used to hold A/D samples,
// 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 uint8_t *trace; // = (uint8_t *) BigBuf;
extern int traceLen; // = 0;
/// iso14443a.h
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);
// Also used in iclass.c
int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader);
#define SEC_Y 0x00
#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);
//-----------------------------------------------------------------------------
// #define RECV_RES_OFFSET 3096
// #define DMA_BUFFER_OFFSET 3160
// #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;
// a good trigger condition to get started is probably when we see a
trace[traceLen++] = Uart.byteCnt;
memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
traceLen += Uart.byteCnt;
- if(traceLen > TRACE_LENGTH) break;
+ if(traceLen > TRACE_SIZE) break;
//}
/* And ready to receive another command. */
Uart.state = STATE_UNSYNCD;
trace[traceLen++] = Demod.len;
memcpy(trace+traceLen, receivedResponse, Demod.len);
traceLen += Demod.len;
- if(traceLen > TRACE_LENGTH) break;
+ if(traceLen > TRACE_SIZE) break;
//triggered = TRUE;
{
uint8_t simType = arg0;
+ // Enable and clear the trace
+ tracing = TRUE;
+ traceLen = 0;
+ memset(trace, 0x44, TRACE_SIZE);
+
// CSN followed by two CRC bytes
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 };
// Reader 81 anticoll. CSN
// Tag CSN
- uint8_t *resp;
- int respLen;
+ uint8_t *resp;
+ int respLen;
+ uint8_t* respdata = NULL;
+ int respsize = 0;
+ uint8_t sof = 0x0f;
// Respond SOF -- takes 8 bytes
- uint8_t *resp1 = (((uint8_t *)BigBuf) + 800);
+ uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
int resp1Len;
// Anticollision CSN (rotated CSN)
// 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;
// CSN
// 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;
// e-Purse
// 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;
// + 1720..
- uint8_t *receivedCmd = (uint8_t *)BigBuf;
- memset(receivedCmd, 0x44, 400);
+ uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ memset(receivedCmd, 0x44, RECV_CMD_SIZE);
int len;
// Prepare card messages
for(;;) {
LED_B_OFF();
if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
- DbpString("button press");
+ DbpString("button press");
break;
- }
+ }
- // Okay, look at the command now.
- if(receivedCmd[0] == 0x0a) {
+ // Okay, look at the command now.
+ if(receivedCmd[0] == 0x0a) {
// Reader in anticollission phase
resp = resp1; respLen = resp1Len; //order = 1;
+ respdata = &sof;
+ respsize = sizeof(sof);
//resp = resp2; respLen = resp2Len; order = 2;
//DbpString("Hello request from reader:");
} else if(receivedCmd[0] == 0x0c) {
// Reader asks for anticollission CSN
resp = resp2; respLen = resp2Len; //order = 2;
+ respdata = response2;
+ respsize = sizeof(response2);
//DbpString("Reader requests anticollission CSN:");
} else if(receivedCmd[0] == 0x81) {
// Reader selects anticollission CSN.
// Tag sends the corresponding real CSN
resp = resp3; respLen = resp3Len; //order = 3;
+ respdata = response3;
+ respsize = sizeof(response3);
//DbpString("Reader selects anticollission CSN:");
} else if(receivedCmd[0] == 0x88) {
// Read e-purse (88 02)
resp = resp4; respLen = resp4Len; //order = 4;
+ respdata = response4;
+ respsize = sizeof(response4);
LED_B_ON();
} else if(receivedCmd[0] == 0x05) {
// Reader random and reader MAC!!!
// Lets store this ;-)
+/*
Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
response3[0], response3[1], response3[2],
response3[3], response3[4], response3[5],
response3[6], response3[7]);
+*/
Dbprintf("READER AUTH (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",
len,
receivedCmd[0], receivedCmd[1], receivedCmd[2],
// Do not respond
// We do not know what to answer, so lets keep quit
resp = resp1; respLen = 0; //order = 5;
+ respdata = NULL;
+ respsize = 0;
} else if(receivedCmd[0] == 0x00 && len == 1) {
// Reader ends the session
resp = resp1; respLen = 0; //order = 0;
-/* } else if(receivedCmd[0] == 0x50) {
- // Received a HALT
- resp = resp1; respLen = 0; order = 5; // Do nothing
- DbpString("Reader requested we HALT!:");
-*/
- } else {
+ respdata = NULL;
+ respsize = 0;
+ } else {
// Never seen this command before
Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
len,
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond
resp = resp1; respLen = 0; //order = 0;
+ respdata = NULL;
+ respsize = 0;
}
- memset(receivedCmd, 0x44, 32);
-
if(cmdsRecvd > 999) {
DbpString("1000 commands later...");
break;
cmdsRecvd++;
}
- if(respLen <= 0) continue;
+ if(respLen > 0) {
+ 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);
+ }
+ }
- SendIClassAnswer(resp, respLen, 21);
- }
+ memset(receivedCmd, 0x44, RECV_CMD_SIZE);
+ }
Dbprintf("%x", cmdsRecvd);
LED_A_OFF();
LED_A_ON();
for(;;) {
- if(traceLen > TRACE_LENGTH || BUTTON_PRESS()) break;
+ if(traceLen > TRACE_SIZE || BUTTON_PRESS()) break;
// Send act_all
ReaderTransmitIClass(act_all, 1);
#define DEMOD_TRACE_SIZE 4096
#define READER_TAG_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
// Setup for the DMA.
dmaBuf = (int8_t *)(BigBuf + 32);
upTo = dmaBuf;
- lastRxCounter = DMA_BUFFER_SIZE;
- FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE);
+ lastRxCounter = DEMOD_DMA_BUFFER_SIZE;
+ FpgaSetupSscDma((uint8_t *)dmaBuf, DEMOD_DMA_BUFFER_SIZE);
// Signal field is ON with the appropriate LED:
if (weTx) LED_D_ON(); else LED_D_OFF();
int behindBy = lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR;
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)
{
ci = upTo[0];
cq = upTo[1];
upTo += 2;
- if(upTo - dmaBuf > DMA_BUFFER_SIZE) {
- upTo -= DMA_BUFFER_SIZE;
+ if(upTo - dmaBuf > DEMOD_DMA_BUFFER_SIZE) {
+ upTo -= DEMOD_DMA_BUFFER_SIZE;
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;
if(lastRxCounter <= 0) {
- lastRxCounter += DMA_BUFFER_SIZE;
+ lastRxCounter += DEMOD_DMA_BUFFER_SIZE;
}
samples += 2;
* 0-4095 : Demodulated samples receive (4096 bytes) - DEMOD_TRACE_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
- * 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)
{
Dbprintf(" Trace: %i bytes", DEMOD_TRACE_SIZE);
Dbprintf(" Reader -> tag: %i bytes", READER_TAG_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
// Setup for the DMA.
FpgaSetupSsc();
upTo = dmaBuf;
- lastRxCounter = DMA_BUFFER_SIZE;
- FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE);
+ lastRxCounter = DEMOD_DMA_BUFFER_SIZE;
+ FpgaSetupSscDma((uint8_t *)dmaBuf, DEMOD_DMA_BUFFER_SIZE);
LED_A_ON();
// And now we loop, receiving samples.
for(;;) {
int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) &
- (DMA_BUFFER_SIZE-1);
+ (DEMOD_DMA_BUFFER_SIZE-1);
if(behindBy > maxBehindBy) {
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);
goto done;
}
cq = upTo[1];
upTo += 2;
lastRxCounter -= 2;
- if(upTo - dmaBuf > DMA_BUFFER_SIZE) {
- upTo -= DMA_BUFFER_SIZE;
- lastRxCounter += DMA_BUFFER_SIZE;
+ if(upTo - dmaBuf > DEMOD_DMA_BUFFER_SIZE) {
+ upTo -= DEMOD_DMA_BUFFER_SIZE;
+ lastRxCounter += DEMOD_DMA_BUFFER_SIZE;
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;
int LogTrace(const uint8_t * btBytes, int iLen, int iSamples, uint32_t dwParity, int bReader)
{
// Return when trace is full
- if (traceLen >= TRACE_LENGTH) return FALSE;
+ if (traceLen >= TRACE_SIZE) return FALSE;
// Trace the random, i'm curious
rsamples += iSamples;
// #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_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;
// a good trigger condition to get started is probably when we see a
int samples = 0;
int rsamples = 0;
- memset(trace, 0x44, RECV_CMD_OFFSET);
+ memset(trace, 0x44, TRACE_SIZE);
// Set up the demodulator for tag -> reader responses.
Demod.output = receivedResponse;
trace[traceLen++] = Uart.byteCnt;
memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
traceLen += Uart.byteCnt;
- if(traceLen > TRACE_LENGTH) break;
+ if(traceLen > TRACE_SIZE) break;
}
/* And ready to receive another command. */
Uart.state = STATE_UNSYNCD;
trace[traceLen++] = Demod.len;
memcpy(trace+traceLen, receivedResponse, Demod.len);
traceLen += Demod.len;
- if(traceLen > TRACE_LENGTH) break;
+ if(traceLen > TRACE_SIZE) break;
triggered = TRUE;
// Main loop of simulated tag: receive commands from reader, decide what
// 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
+ 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
// 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[] = { 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
// UID response
//static const uint8_t response2[] = { 0x9a, 0xe5, 0xe4, 0x43, 0xd8 }; // original value - greg
// 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
//uint8_t response3[] = { 0x04, 0x00, 0x00 }; // SAK Select (cascade1) successful response (ULTRALITE)
-uint8_t response3[] = { 0x24, 0x00, 0x00 }; // SAK Select (cascade1) successful response (DESFire)
-ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
+//uint8_t response3[] = { 0x24, 0x00, 0x00 }; // SAK Select (cascade1) successful response (DESFire)
+//ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
// 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
// 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[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire)
-ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
+//uint8_t response3a[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire)
+//ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
static const uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
uint8_t *resp;
int respLen;
- // Longest possible response will be 16 bytes + 2 CRC = 18 bytes
+ // Longest possible response will be 16 bytes + 2 CRC = 18 bytes
// This will need
// 144 data bits (18 * 8)
// 18 parity bits
//
// Respond with card type
- uint8_t *resp1 = (((uint8_t *)BigBuf) + 800);
+ uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
int resp1Len;
// Anticollision cascade1 - respond with uid
- uint8_t *resp2 = (((uint8_t *)BigBuf) + 970);
+ uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 166);
int resp2Len;
// Anticollision cascade2 - respond with 2nd half of uid if asked
int resp2aLen;
// Acknowledge select - cascade 1
- uint8_t *resp3 = (((uint8_t *)BigBuf) + 1310);
+ uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*2));
int resp3Len;
// Acknowledge select - cascade 2
- uint8_t *resp3a = (((uint8_t *)BigBuf) + 1480);
+ uint8_t *resp3a = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*3));
int resp3aLen;
// 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;
// Authenticate response - nonce
- uint8_t *resp5 = (((uint8_t *)BigBuf) + 1720);
+ uint8_t *resp5 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*5));
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 i;
int happened = 0;
int happened2 = 0;
- int cmdsRecvd = 0;
+ int cmdsRecvd = 0;
+ uint8_t* respdata = NULL;
+ int respsize = 0;
+ uint8_t nack = 0x04;
//int fdt_indicator;
- memset(receivedCmd, 0x44, 400);
+ memset(receivedCmd, 0x44, RECV_CMD_SIZE);
// Prepare the responses of the anticollision phase
// there will be not enough time to do this at the moment the reader sends it REQA
LED_A_ON();
for(;;) {
- if(!GetIso14443aCommandFromReader(receivedCmd, &len, 100)) {
+ if(!GetIso14443aCommandFromReader(receivedCmd, &len, RECV_CMD_SIZE)) {
DbpString("button press");
break;
}
if(receivedCmd[0] == 0x26) {
// Received a REQUEST
resp = resp1; respLen = resp1Len; order = 1;
+ respdata = response1;
+ respsize = sizeof(response1);
//DbpString("Hello request from reader:");
} else if(receivedCmd[0] == 0x52) {
// Received a WAKEUP
resp = resp1; respLen = resp1Len; order = 6;
// //DbpString("Wakeup request from reader:");
-
+ respdata = response1;
+ respsize = sizeof(response1);
} else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x93) { // greg - cascade 1 anti-collision
// Received request for UID (cascade 1)
resp = resp2; respLen = resp2Len; order = 2;
// DbpString("UID (cascade 1) request from reader:");
// 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
// Received request for UID (cascade 2)
resp = resp2a; respLen = resp2aLen; order = 20;
// DbpString("UID (cascade 2) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
-
+ respdata = response2a;
+ respsize = sizeof(response2a);
} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x93) { // greg - cascade 1 select
// Received a SELECT
resp = resp3; respLen = resp3Len; order = 3;
// DbpString("Select (cascade 1) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
-
+ respdata = response3;
+ respsize = sizeof(response3);
} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x95) { // greg - cascade 2 select
// Received a SELECT
resp = resp3a; respLen = resp3aLen; order = 30;
// DbpString("Select (cascade 2) request from reader:");
// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
-
+ respdata = response3a;
+ respsize = sizeof(response3a);
} else if(receivedCmd[0] == 0x30) {
// Received a READ
resp = resp4; respLen = resp4Len; order = 4; // Do nothing
Dbprintf("Read request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]);
-
+ respdata = &nack;
+ respsize = sizeof(nack); // 4-bit answer
} else if(receivedCmd[0] == 0x50) {
// Received a HALT
resp = resp1; respLen = 0; order = 5; // Do nothing
DbpString("Reader requested we HALT!:");
+ respdata = NULL;
+ respsize = 0;
} else if(receivedCmd[0] == 0x60) {
// Received an authentication request
resp = resp5; respLen = resp5Len; order = 7;
Dbprintf("Authenticate request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]);
+ respdata = NULL;
+ respsize = 0;
} else if(receivedCmd[0] == 0xE0) {
// Received a RATS request
resp = resp1; respLen = 0;order = 70;
Dbprintf("RATS request from reader: %x %x %x",
receivedCmd[0], receivedCmd[1], receivedCmd[2]);
- } else {
- // Never seen this command before
- Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
+ respdata = NULL;
+ respsize = 0;
+ } else {
+ // Never seen this command before
+ Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
len,
receivedCmd[0], receivedCmd[1], receivedCmd[2],
receivedCmd[3], receivedCmd[4], receivedCmd[5],
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond
resp = resp1; respLen = 0; order = 0;
- }
+ respdata = NULL;
+ respsize = 0;
+ }
// Count number of wakeups received after a halt
if(order == 6 && lastorder == 5) { happened++; }
//i = 0;
}
- memset(receivedCmd, 0x44, 32);
if(cmdsRecvd > 999) {
DbpString("1000 commands later...");
cmdsRecvd++;
}
- if(respLen <= 0) continue;
- //----------------------------
- //u = 0;
- //b = 0x00;
- //fdt_indicator = FALSE;
+ if(respLen > 0) {
+ //----------------------------
+ //u = 0;
+ //b = 0x00;
+ //fdt_indicator = FALSE;
+ 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);
+ }
+ }
- EmSendCmd14443aRaw(resp, respLen, receivedCmd[0] == 0x52);
+ memset(receivedCmd, 0x44, RECV_CMD_SIZE);
/* // Modulate Manchester
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00;
}
if (cardSTATE != MFEMUL_NOFIELD) {
- res = EmGetCmd(receivedCmd, &len, 100); // (+ nextCycleTimeout)
+ res = EmGetCmd(receivedCmd, &len, RECV_CMD_SIZE); // (+ nextCycleTimeout)
if (res == 2) {
cardSTATE = MFEMUL_NOFIELD;
LEDsoff();
#define __ISO14443A_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())!!!
#define MIFARE_BUFF_OFFSET 3560 // \/ \/ \/
// card emulator memory
#include "util.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)
{
while (len--) {
#define BUTTON_DOUBLE_CLICK -2
#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);
uint64_t bytes_to_num(uint8_t* src, size_t len);
// ## simulate iso14443a tag
// ## greg - added ability to specify tag UID
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;
int n = 0, i = 0;
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi= (hi << 4) | (lo >> 28);
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, {hi, lo, 0}};
- PrintAndLog("Emulating 14443A TAG with UID %x%16x", hi, lo);
+*/
+// 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)};
+// PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
SendCommand(&c);
return 0;
}
int bg, en;
if (!param_getptr(line, &bg, &en, paramnum))
- return strtol(&line[bg], NULL, base);
+ return strtoll(&line[bg], NULL, base);
else
return deflt;
projects / proxmark3-svn / commitdiff