LED_A_OFF(); // Finished receiving
Uart.state = STATE_UNSYNCD;
if (Uart.byteCnt != 0) {
- return TRUE;
+ return true;
}
} else {
// this is an error
break;
}
- return FALSE;
+ return false;
}
// Receive a command (from the reader to us, where we are the simulated tag),
// and store it in the given buffer, up to the given maximum length. Keeps
// spinning, waiting for a well-framed command, until either we get one
-// (returns TRUE) or someone presses the pushbutton on the board (FALSE).
+// (returns true) or someone presses the pushbutton on the board (false).
//
// Assume that we're called with the SSC (to the FPGA) and ADC path set
// correctly.
for(;;) {
WDT_HIT();
- if(BUTTON_PRESS()) return FALSE;
+ if(BUTTON_PRESS()) return false;
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
for(uint8_t mask = 0x80; mask != 0x00; mask >>= 1) {
if(Handle14443bUartBit(b & mask)) {
*len = Uart.byteCnt;
- return TRUE;
+ return true;
}
}
}
}
- return FALSE;
+ return false;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void SimulateIso14443bTag(void)
{
- // the only commands we understand is REQB, AFI=0, Select All, N=0:
- static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 };
- // ... and REQB, AFI=0, Normal Request, N=0:
- static const uint8_t cmd2[] = { 0x05, 0x00, 0x00, 0x71, 0xFF };
+ // the only commands we understand is WUPB, AFI=0, Select All, N=1:
+ static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 }; // WUPB
+ // ... and REQB, AFI=0, Normal Request, N=1:
+ static const uint8_t cmd2[] = { 0x05, 0x00, 0x00, 0x71, 0xFF }; // REQB
+ // ... and HLTB
+ static const uint8_t cmd3[] = { 0x50, 0xff, 0xff, 0xff, 0xff }; // HLTB
+ // ... and ATTRIB
+ static const uint8_t cmd4[] = { 0x1D, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ATTRIB
// ... and we always respond with ATQB, PUPI = 820de174, Application Data = 0x20381922,
// supports only 106kBit/s in both directions, max frame size = 32Bytes,
0x50, 0x82, 0x0d, 0xe1, 0x74, 0x20, 0x38, 0x19, 0x22,
0x00, 0x21, 0x85, 0x5e, 0xd7
};
+ // response to HLTB and ATTRIB
+ static const uint8_t response2[] = {0x00, 0x78, 0xF0};
+
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
const uint8_t *resp;
uint8_t *respCode;
memcpy(resp1Code, ToSend, ToSendMax);
uint16_t resp1CodeLen = ToSendMax;
+ // prepare the (other) tag answer:
+ CodeIso14443bAsTag(response2, sizeof(response2));
+ uint8_t *resp2Code = BigBuf_malloc(ToSendMax);
+ memcpy(resp2Code, ToSend, ToSendMax);
+ uint16_t resp2CodeLen = ToSendMax;
+
// We need to listen to the high-frequency, peak-detected path.
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
if (tracing) {
uint8_t parity[MAX_PARITY_SIZE];
- LogTrace(receivedCmd, len, 0, 0, parity, TRUE);
+ LogTrace(receivedCmd, len, 0, 0, parity, true);
}
// Good, look at the command now.
respLen = sizeof(response1);
respCode = resp1Code;
respCodeLen = resp1CodeLen;
+ } else if ( (len == sizeof(cmd3) && receivedCmd[0] == cmd3[0])
+ || (len == sizeof(cmd4) && receivedCmd[0] == cmd4[0]) ) {
+ resp = response2;
+ respLen = sizeof(response2);
+ respCode = resp2Code;
+ respCodeLen = resp2CodeLen;
} else {
Dbprintf("new cmd from reader: len=%d, cmdsRecvd=%d", len, cmdsRecvd);
// And print whether the CRC fails, just for good measure
uint8_t b1, b2;
- ComputeCrc14443(CRC_14443_B, receivedCmd, len-2, &b1, &b2);
- if(b1 != receivedCmd[len-2] || b2 != receivedCmd[len-1]) {
- // Not so good, try again.
- DbpString("+++CRC fail");
- } else {
- DbpString("CRC passes");
+ if (len >= 3){ // if crc exists
+ ComputeCrc14443(CRC_14443_B, receivedCmd, len-2, &b1, &b2);
+ if(b1 != receivedCmd[len-2] || b2 != receivedCmd[len-1]) {
+ // Not so good, try again.
+ DbpString("+++CRC fail");
+
+ } else {
+ DbpString("CRC passes");
+ }
}
- break;
+ //get rid of compiler warning
+ respCodeLen = 0;
+ resp = response1;
+ respLen = 0;
+ respCode = resp1Code;
+ //don't crash at new command just wait and see if reader will send other new cmds.
+ //break;
}
cmdsRecvd++;
// trace the response:
if (tracing) {
uint8_t parity[MAX_PARITY_SIZE];
- LogTrace(resp, respLen, 0, 0, parity, FALSE);
+ LogTrace(resp, respLen, 0, 0, parity, false);
}
}
}
*/
// Subcarrier amplitude v = sqrt(ci^2 + cq^2), approximated here by max(abs(ci),abs(cq)) + 1/2*min(abs(ci),abs(cq)))
+
+ //note: couldn't we just use MAX(ABS(ci),ABS(cq)) + (MIN(ABS(ci),ABS(cq))/2) from common.h - marshmellow
#define CHECK_FOR_SUBCARRIER() { \
+ v = MAX(ABS(ci),ABS(cq)) + (MIN(ABS(ci),ABS(cq))/2); \
+ }
+ /*
if(ci < 0) { \
- if(cq < 0) { /* ci < 0, cq < 0 */ \
+ if(cq < 0) { \ // ci < 0, cq < 0
if (cq < ci) { \
v = -cq - (ci >> 1); \
} else { \
v = -ci - (cq >> 1); \
} \
- } else { /* ci < 0, cq >= 0 */ \
+ } else { \ // ci < 0, cq >= 0
if (cq < -ci) { \
v = -ci + (cq >> 1); \
} else { \
} \
} \
} else { \
- if(cq < 0) { /* ci >= 0, cq < 0 */ \
+ if(cq < 0) { \ // ci >= 0, cq < 0
if (-cq < ci) { \
v = ci - (cq >> 1); \
} else { \
v = -cq + (ci >> 1); \
} \
- } else { /* ci >= 0, cq >= 0 */ \
+ } else { \ // ci >= 0, cq >= 0
if (cq < ci) { \
v = ci + (cq >> 1); \
} else { \
} \
} \
}
+ */
switch(Demod.state) {
case DEMOD_UNSYNCD:
LED_C_OFF();
if(s == 0x000) {
// This is EOF (start, stop and all data bits == '0'
- return TRUE;
+ return true;
}
}
}
break;
}
- return FALSE;
+ return false;
}
/*
* Demodulate the samples we received from the tag, also log to tracebuffer
- * quiet: set to 'TRUE' to disable debug output
+ * quiet: set to 'true' to disable debug output
*/
static void GetSamplesFor14443bDemod(int n, bool quiet)
{
int max = 0;
- bool gotFrame = FALSE;
+ bool gotFrame = false;
int lastRxCounter, ci, cq, samples = 0;
// Allocate memory from BigBuf for some buffers
samples += 2;
if(Handle14443bSamplesDemod(ci, cq)) {
- gotFrame = TRUE;
+ gotFrame = true;
break;
}
}
//Tracing
if (tracing && Demod.len > 0) {
uint8_t parity[MAX_PARITY_SIZE];
- LogTrace(Demod.output, Demod.len, 0, 0, parity, FALSE);
+ LogTrace(Demod.output, Demod.len, 0, 0, parity, false);
}
}
TransmitFor14443b();
if (tracing) {
uint8_t parity[MAX_PARITY_SIZE];
- LogTrace(cmd,len, 0, 0, parity, TRUE);
+ LogTrace(cmd,len, 0, 0, parity, true);
}
}
// send
CodeAndTransmit14443bAsReader(message_frame, message_length + 4);
// get response
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT*100, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT*100, true);
if(Demod.len < 3)
{
return 0;
// first, wake up the tag
CodeAndTransmit14443bAsReader(wupb, sizeof(wupb));
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
// ATQB too short?
if (Demod.len < 14)
{
attrib[7] = Demod.output[10] & 0x0F;
ComputeCrc14443(CRC_14443_B, attrib, 9, attrib + 9, attrib + 10);
CodeAndTransmit14443bAsReader(attrib, sizeof(attrib));
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
// Answer to ATTRIB too short?
if(Demod.len < 3)
{
SpinDelay(200);
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
// First command: wake up the tag using the INITIATE command
uint8_t cmd1[] = {0x06, 0x00, 0x97, 0x5b};
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len == 0) {
DbpString("No response from tag");
cmd1[1] = Demod.output[0];
ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 3) {
Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
return;
cmd1[0] = 0x0B;
ComputeCrc14443(CRC_14443_B, cmd1, 1 , &cmd1[1], &cmd1[2]);
CodeAndTransmit14443bAsReader(cmd1, 3); // Only first three bytes for this one
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 10) {
Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
return;
cmd1[1] = i;
ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 6) { // Check if we got an answer from the tag
DbpString("Expected 6 bytes from tag, got less...");
return;
// 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
// response from the tag.
- int triggered = TRUE; // TODO: set and evaluate trigger condition
+ int triggered = true; // TODO: set and evaluate trigger condition
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
BigBuf_free();
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
// The DMA buffer, used to stream samples from the FPGA
int8_t *dmaBuf = (int8_t*) BigBuf_malloc(ISO14443B_DMA_BUFFER_SIZE);
FpgaSetupSscDma((uint8_t*) dmaBuf, ISO14443B_DMA_BUFFER_SIZE);
uint8_t parity[MAX_PARITY_SIZE];
- bool TagIsActive = FALSE;
- bool ReaderIsActive = FALSE;
+ bool TagIsActive = false;
+ bool ReaderIsActive = false;
// And now we loop, receiving samples.
for(;;) {
if (!TagIsActive) { // no need to try decoding reader data if the tag is sending
if(Handle14443bUartBit(ci & 0x01)) {
if(triggered && tracing) {
- LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
+ LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, true);
}
/* And ready to receive another command. */
UartReset();
}
if(Handle14443bUartBit(cq & 0x01)) {
if(triggered && tracing) {
- LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
+ LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, true);
}
/* And ready to receive another command. */
UartReset();
if(tracing)
{
uint8_t parity[MAX_PARITY_SIZE];
- LogTrace(Demod.output, Demod.len, samples, samples, parity, FALSE);
+ LogTrace(Demod.output, Demod.len, samples, samples, parity, false);
}
- triggered = TRUE;
+ triggered = true;
// And ready to receive another response.
DemodReset();
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
- set_tracing(TRUE);
+ if (datalen){
+ set_tracing(true);
+
+ CodeAndTransmit14443bAsReader(data, datalen);
- CodeAndTransmit14443bAsReader(data, datalen);
-
- if(recv) {
- GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
- uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
- cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
+ if(recv) {
+ GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
+ uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
+ cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
+ }
}
if(!powerfield) {
projects / proxmark3-svn / blobdiff