mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-08-21 13:53:55 -07:00
chg: minor clean up in iso15693 commands.
This commit is contained in:
iceman1001
parent
4d354f75fe
commit
eec5780b62
2 changed files with 90 additions and 131 deletions
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@ -90,8 +90,7 @@ int DEBUG = 0;
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// resulting data rate is 26,48 kbit/s (fc/512)
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// cmd ... data
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// n ... length of data
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static void CodeIso15693AsReader(uint8_t *cmd, int n)
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{
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static void CodeIso15693AsReader(uint8_t *cmd, int n) {
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int i, j;
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ToSendReset();
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@ -170,8 +169,7 @@ static void CodeIso15693AsReader(uint8_t *cmd, int n)
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// encode data using "1 out of 256" sheme
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// data rate is 1,66 kbit/s (fc/8192)
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// is designed for more robust communication over longer distances
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static void CodeIso15693AsReader256(uint8_t *cmd, int n)
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{
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static void CodeIso15693AsReader256(uint8_t *cmd, int n) {
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int i, j;
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ToSendReset();
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@ -212,14 +210,12 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n)
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ToSendStuffBit(1);
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}
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// Transmit the command (to the tag) that was placed in ToSend[].
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static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *wait)
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{
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static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *wait) {
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int c;
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volatile uint32_t r;
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);
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if (wait) {
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if (*wait < 10) { *wait = 10; }
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for (c = 0; c < *wait;) {
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@ -236,15 +232,17 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w
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c = 0;
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for(;;) {
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if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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WDT_HIT();
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if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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AT91C_BASE_SSC->SSC_THR = cmd[c];
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if( ++c >= len) break;
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}
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if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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r = AT91C_BASE_SSC->SSC_RHR; (void)r;
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}
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WDT_HIT();
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}
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if (samples) {
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if (wait)
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*samples = (c + *wait) << 3;
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@ -256,11 +254,11 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w
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//-----------------------------------------------------------------------------
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// Transmit the command (to the reader) that was placed in ToSend[].
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//-----------------------------------------------------------------------------
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static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int *wait)
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{
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static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int *wait) {
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int c = 0;
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volatile uint32_t r;
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K);
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if (wait) {
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if (*wait < 10) { *wait = 10; }
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for (c = 0; c < *wait;) {
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@ -274,16 +272,17 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int
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WDT_HIT();
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}
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}
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c = 0;
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for(;;) {
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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WDT_HIT();
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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AT91C_BASE_SSC->SSC_THR = cmd[c];
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if( ++c >= len) break;
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}
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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r = AT91C_BASE_SSC->SSC_RHR; (void)r;
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}
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WDT_HIT();
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}
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if (samples) {
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if (wait)
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@ -293,7 +292,6 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int
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}
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}
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// Read from Tag
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// Parameters:
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// receivedResponse
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@ -302,16 +300,15 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int
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// elapsed
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// returns:
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// number of decoded bytes
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static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed)
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{
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uint8_t *dest = BigBuf_get_addr();
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int c = 0, getNext = false;
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int8_t prev = 0;
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static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) {
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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//SpinDelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads
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int c = 0, getNext = false;
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int8_t prev = 0;
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uint8_t *dest = BigBuf_get_addr();
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for(;;) {
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WDT_HIT();
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@ -431,13 +428,12 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *
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// Now the GetISO15693 message from sniffing command
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static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) {
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uint8_t *dest = BigBuf_get_addr();
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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//SpinDelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads
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int c = 0, getNext = false;
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int8_t prev = 0;
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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//SpinDelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads
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uint8_t *dest = BigBuf_get_addr();
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for(;;) {
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WDT_HIT();
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@ -468,7 +464,7 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int
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/////////// DEMODULATE ///////////////////
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//////////////////////////////////////////
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int i, j, max = 0, maxPos=0, skip = 4;
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int i, j, max = 0, maxPos = 0, skip = 4;
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// First, correlate for SOF
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for(i = 0; i < 19000; i++) {
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@ -559,48 +555,52 @@ static void BuildIdentifyRequest(void);
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//-----------------------------------------------------------------------------
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void AcquireRawAdcSamplesIso15693(void)
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{
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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int c = 0, getNext = false;
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int8_t prev = 0;
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volatile uint32_t r;
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uint8_t *dest = BigBuf_get_addr();
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BuildIdentifyRequest();
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volatile int8_t b;
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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FpgaSetupSsc();
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// Give the tags time to energize
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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SpinDelay(100);
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// Now send the command
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FpgaSetupSsc();
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);
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uint8_t *dest = BigBuf_get_addr();
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BuildIdentifyRequest();
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c = 0;
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for(;;) {
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WDT_HIT();
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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AT91C_BASE_SSC->SSC_THR = ToSend[c];
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if( ++c == ToSendMax+3) break;
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}
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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r = AT91C_BASE_SSC->SSC_RHR;
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(void)r;
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r = AT91C_BASE_SSC->SSC_RHR; (void)r;
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}
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WDT_HIT();
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}
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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c = 0;
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for(;;) {
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WDT_HIT();
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY))
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AT91C_BASE_SSC->SSC_THR = 0x43;
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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int8_t b = (int8_t)AT91C_BASE_SSC->SSC_RHR;
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b = (int8_t)AT91C_BASE_SSC->SSC_RHR;
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// The samples are correlations against I and Q versions of the
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// tone that the tag AM-modulates, so every other sample is I,
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@ -620,40 +620,31 @@ void AcquireRawAdcSamplesIso15693(void)
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}
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}
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void RecordRawAdcSamplesIso15693(void)
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{
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uint8_t *dest = BigBuf_get_addr();
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// switch_off, initreader
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void RecordRawAdcSamplesIso15693(void) {
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int c = 0, getNext = false;
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int8_t prev = 0;
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volatile int8_t b;
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Iso15693InitReader();
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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// Setup SSC
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FpgaSetupSsc();
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uint8_t *dest = BigBuf_get_addr();
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// Start from off (no field generated)
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FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
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SpinDelay(200);
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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SpinDelay(100);
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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for(;;) {
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for(;;) {
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WDT_HIT();
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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AT91C_BASE_SSC->SSC_THR = 0x43;
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}
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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int8_t b;
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b = (int8_t)AT91C_BASE_SSC->SSC_RHR;
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// The samples are correlations against I and Q versions of the
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// tone that the tag AM-modulates, so every other sample is I,
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// every other is Q. We just want power, so abs(I) + abs(Q) is
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// close to what we want.
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if(getNext) {
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if (getNext) {
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dest[c++] = (uint8_t) ABS(b) + ABS(prev);
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if(c >= 7000)
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@ -663,40 +654,34 @@ void RecordRawAdcSamplesIso15693(void)
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}
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getNext = !getNext;
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WDT_HIT();
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}
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}
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Dbprintf("fin record");
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Dbprintf("done");
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switch_off();
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}
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// Initialize the proxmark as iso15k reader
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// (this might produces glitches that confuse some tags
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void Iso15693InitReader() {
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LED_A_ON();
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LED_B_ON();
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LED_C_OFF();
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LED_D_OFF();
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void Iso15693InitReader(void) {
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LEDsoff();
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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// Setup SSC
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// FpgaSetupSsc();
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// Start from off (no field generated)
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FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
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SpinDelay(10);
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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FpgaSetupSsc();
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// Give the tags time to energize
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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SpinDelay(250);
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SpinDelay(60);
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LED_A_ON();
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LED_B_OFF();
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LED_C_OFF();
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LED_D_OFF();
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}
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///////////////////////////////////////////////////////////////////////
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@ -794,11 +779,10 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv)
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int samples = 0, tsamples = 0;
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int wait = 0, elapsed = 0;
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int answerLen = 0;
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LEDsoff();
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LED_A_ON(); LED_B_ON();
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LED_C_OFF(); LED_D_OFF();
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if (init) Iso15693InitReader();
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// answer is 100bytes long?
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@ -813,14 +797,12 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv)
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CodeIso15693AsReader(send, sendlen);
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}
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LED_A_ON();
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LED_B_OFF();
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LED_A_INV();
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TransmitTo15693Tag(ToSend, ToSendMax, &tsamples, &wait);
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// Now wait for a response
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if (recv!=NULL) {
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LED_A_OFF();
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LED_B_ON();
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if (recv != NULL) {
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LED_B_INV();
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answerLen = GetIso15693AnswerFromTag(answer, 100, &samples, &elapsed) ;
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*recv = answer;
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}
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@ -906,13 +888,7 @@ void SetDebugIso15693(uint32_t debug) {
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// Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector
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// all demodulation performed in arm rather than host. - greg
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//-----------------------------------------------------------------------------
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void ReaderIso15693(uint32_t parameter)
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{
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LED_A_ON();
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LED_B_ON();
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LED_C_OFF();
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LED_D_OFF();
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void ReaderIso15693(uint32_t parameter) {
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int answerLen1 = 0;
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int answerLen2 = 0;
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int answerLen3 = 0;
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@ -921,10 +897,9 @@ void ReaderIso15693(uint32_t parameter)
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int tsamples = 0;
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int wait = 0;
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int elapsed = 0;
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uint8_t TagUID[8] = {0x00};
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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uint8_t *answer1 = BigBuf_malloc(100);
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uint8_t *answer2 = BigBuf_malloc(100);
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uint8_t *answer3 = BigBuf_malloc(100);
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@ -933,36 +908,21 @@ void ReaderIso15693(uint32_t parameter)
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memset(answer2, 0x00, 100);
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memset(answer3, 0x00, 100);
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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// Setup SSC
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FpgaSetupSsc();
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// Start from off (no field generated)
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FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
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SpinDelay(200);
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// Give the tags time to energize
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
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SpinDelay(200);
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LED_A_ON();
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LED_B_OFF();
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LED_C_OFF();
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LED_D_OFF();
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// Now send the IDENTIFY command
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// FIRST WE RUN AN INVENTORY TO GET THE TAG UID
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// THIS MEANS WE CAN PRE-BUILD REQUESTS TO SAVE CPU TIME
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// Now send the IDENTIFY command
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BuildIdentifyRequest();
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// set up device/fpga
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Iso15693InitReader();
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TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait);
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// Now wait for a response
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answerLen1 = GetIso15693AnswerFromTag(answer1, 100, &samples, &elapsed) ;
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if (answerLen1 >= 12) // we should do a better check than this
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{
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// we should do a better check than this
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if (answerLen1 >= 12) {
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TagUID[0] = answer1[2];
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TagUID[1] = answer1[3];
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TagUID[2] = answer1[4];
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@ -971,7 +931,6 @@ void ReaderIso15693(uint32_t parameter)
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TagUID[5] = answer1[7];
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TagUID[6] = answer1[8]; // IC Manufacturer code
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TagUID[7] = answer1[9]; // always E0
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}
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Dbprintf("%d octets read from IDENTIFY request:", answerLen1);
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@ -979,7 +938,7 @@ void ReaderIso15693(uint32_t parameter)
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Dbhexdump(answerLen1, answer1, true);
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// UID is reverse
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if (answerLen1>=12)
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if (answerLen1 >= 12)
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Dbprintf("UID = %02hX%02hX%02hX%02hX%02hX%02hX%02hX%02hX",
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TagUID[7],TagUID[6],TagUID[5],TagUID[4],
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TagUID[3],TagUID[2],TagUID[1],TagUID[0]);
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@ -990,7 +949,7 @@ void ReaderIso15693(uint32_t parameter)
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Dbhexdump(answerLen2, answer2, true);
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Dbprintf("%d octets read from XXX request:", answerLen3);
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DbdecodeIso15693Answer(answerLen3,answer3);
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DbdecodeIso15693Answer(answerLen3, answer3);
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Dbhexdump(answerLen3, answer3, true);
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// read all pages
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@ -1010,13 +969,22 @@ void ReaderIso15693(uint32_t parameter)
|
|||
}
|
||||
}
|
||||
|
||||
LEDsoff();
|
||||
switch_off();
|
||||
}
|
||||
|
||||
// Simulate an ISO15693 TAG, perform anti-collision and then print any reader commands
|
||||
// all demodulation performed in arm rather than host. - greg
|
||||
void SimTagIso15693(uint32_t parameter, uint8_t *uid)
|
||||
{
|
||||
void SimTagIso15693(uint32_t parameter, uint8_t *uid) {
|
||||
|
||||
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
|
||||
|
||||
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
|
||||
FpgaSetupSsc();
|
||||
|
||||
// Start from off (no field generated)
|
||||
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
|
||||
SpinDelay(200);
|
||||
|
||||
LED_A_ON();
|
||||
|
||||
int ans = 0;
|
||||
|
|
@ -1026,33 +994,24 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid)
|
|||
int elapsed = 0;
|
||||
|
||||
Dbprintf("iso15963 Simulating uid: %x %x %x %x %x %x %x %x", uid[0], uid[1], uid[2], uid[3], uid[4], uid[5], uid[6], uid[7]);
|
||||
|
||||
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
|
||||
|
||||
uint8_t *buf = BigBuf_malloc(100);
|
||||
memset(buf, 0x00, 100);
|
||||
|
||||
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
|
||||
FpgaSetupSsc();
|
||||
|
||||
// Start from off (no field generated)
|
||||
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
|
||||
SpinDelay(200);
|
||||
|
||||
LED_C_ON();
|
||||
|
||||
// Build a suitable reponse to the reader INVENTORY cocmmand
|
||||
// not so obsvious, but in the call to BuildInventoryResponse, the command is copied to the global ToSend buffer used below.
|
||||
BuildInventoryResponse(uid);
|
||||
|
||||
while(!BUTTON_PRESS() && !usb_poll_validate_length() ) {
|
||||
while (!BUTTON_PRESS() && !usb_poll_validate_length() ) {
|
||||
WDT_HIT();
|
||||
|
||||
// Listen to reader
|
||||
ans = GetIso15693AnswerFromSniff(buf, 100, &samples, &elapsed) ;
|
||||
|
||||
// we should do a better check than this
|
||||
if (ans >=1 ) {
|
||||
if (ans >= 1 ) {
|
||||
TransmitTo15693Reader(ToSend, ToSendMax, &tsamples, &wait);
|
||||
|
||||
Dbprintf("%d octets read from reader command: %x %x %x %x %x %x %x %x %x", ans,
|
||||
|
|
@ -1060,8 +1019,7 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid)
|
|||
buf[4], buf[5], buf[6], buf[7], buf[8]);
|
||||
}
|
||||
}
|
||||
LEDsoff();
|
||||
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
|
||||
switch_off();
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1125,13 +1083,13 @@ void DirectTag15693Command(uint32_t datalen,uint32_t speed, uint32_t recv, uint8
|
|||
|
||||
if (recv) {
|
||||
LED_B_ON();
|
||||
cmd_send(CMD_ACK,recvlen>48?48:recvlen,0,0,recvbuf,48);
|
||||
cmd_send(CMD_ACK, recvlen > 48 ? 48 : recvlen, 0, 0, recvbuf, 48);
|
||||
LED_B_OFF();
|
||||
|
||||
if (DEBUG) {
|
||||
Dbprintf("RECV");
|
||||
DbdecodeIso15693Answer(recvlen,recvbuf);
|
||||
Dbhexdump(recvlen,recvbuf,true);
|
||||
DbdecodeIso15693Answer(recvlen, recvbuf);
|
||||
Dbhexdump(recvlen, recvbuf, true);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue