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https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-12-31 04:39:49 +08:00
CHG; still looking at 14b, this time started to look at the tracelog times not working.
This commit is contained in:
iceman1001
parent
59e933fc3f
commit
86db8973b0
2 changed files with 50 additions and 41 deletions
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@ -40,7 +40,7 @@
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//#define SEND4STUFFBIT(x) ToSendStuffBit(x);
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// iceman, this threshold value, what makes 8 a good amplituted for this IQ values?
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#ifndef SUBCARRIER_DETECT_THRESHOLD
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# define SUBCARRIER_DETECT_THRESHOLD 6
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# define SUBCARRIER_DETECT_THRESHOLD 8
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#endif
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static void iso14b_set_timeout(uint32_t timeout);
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@ -237,7 +237,7 @@ static void CodeIso14443bAsTag(const uint8_t *cmd, int len) {
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* Card data transmission
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* - TR1
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* - SOF
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* - data (each bytes is: 1startbit,8bits, 1stopbit)
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* - data (each bytes is: 1startbit, 8bits, 1stopbit)
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* - CRC_B
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* - EOF
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*
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@ -280,13 +280,14 @@ static void CodeIso14443bAsTag(const uint8_t *cmd, int len) {
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// Data bits
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b = cmd[i];
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for(j = 0; j < 8; ++j) {
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if(b & 1) {
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SEND4STUFFBIT(1);
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//ToSendStuffBit(1);
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} else {
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SEND4STUFFBIT(0);
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//ToSendStuffBit(0);
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}
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// if(b & 1) {
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// SEND4STUFFBIT(1);
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// //ToSendStuffBit(1);
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// } else {
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// SEND4STUFFBIT(0);
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// //ToSendStuffBit(0);
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// }
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SEND4STUFFBIT( b & 1 );
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b >>= 1;
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}
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@ -802,10 +803,9 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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case DEMOD_UNSYNCD:
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CHECK_FOR_SUBCARRIER();
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if (MF_DBGLEVEL >= 3) { Dbprintf("Demod.state = %d", v); }
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// subcarrier detected
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if(v > SUBCARRIER_DETECT_THRESHOLD) {
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if (v > SUBCARRIER_DETECT_THRESHOLD) {
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Demod.state = DEMOD_PHASE_REF_TRAINING;
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Demod.sumI = ci;
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Demod.sumQ = cq;
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@ -814,7 +814,7 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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break;
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case DEMOD_PHASE_REF_TRAINING:
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if(Demod.posCount < 8) {
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if (Demod.posCount < 8) {
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CHECK_FOR_SUBCARRIER();
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@ -837,7 +837,7 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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MAKE_SOFT_DECISION();
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if(v < 0) { // logic '0' detected
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if (v < 0) { // logic '0' detected
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Demod.state = DEMOD_GOT_FALLING_EDGE_OF_SOF;
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Demod.posCount = 0; // start of SOF sequence
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} else {
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@ -852,13 +852,13 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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MAKE_SOFT_DECISION();
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if(v > 0) {
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if (v > 0) {
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// low phase of SOF too short (< 9 etu). Note: spec is >= 10, but FPGA tends to "smear" edges
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if(Demod.posCount < 8*2) {
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if (Demod.posCount < 8*2) {
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Demod.state = DEMOD_UNSYNCD;
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} else {
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LED_C_ON(); // Got SOF
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Demod.startTime = GetCountSspClk();
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//Demod.startTime = GetCountSspClk();
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Demod.state = DEMOD_AWAITING_START_BIT;
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Demod.posCount = 0;
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Demod.len = 0;
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@ -904,7 +904,7 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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Demod.thisBit += v;
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Demod.shiftReg >>= 1;
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// logic '1'
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// OR in a logic '1'
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if (Demod.thisBit > 0) Demod.shiftReg |= 0x200;
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++Demod.bitCount;
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@ -923,7 +923,7 @@ static RAMFUNC int Handle14443bTagSamplesDemod(int ci, int cq) {
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} else {
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// this one is a bit hard, either its a correc byte or its unsynced.
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Demod.state = DEMOD_UNSYNCD;
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Demod.endTime = GetCountSspClk();
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//Demod.endTime = GetCountSspClk();
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LED_C_OFF();
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// This is EOF (start, stop and all data bits == '0'
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@ -1018,7 +1018,7 @@ static void GetTagSamplesFor14443bDemod() {
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Dbhexdump(ISO14443B_DMA_BUFFER_SIZE, (uint8_t *)dmaBuf, FALSE);
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if ( Demod.len > 0 )
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LogTrace(Demod.output, Demod.len, Demod.startTime, Demod.endTime, NULL, FALSE);
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LogTrace(Demod.output, Demod.len, time_0, time_stop, NULL, FALSE);
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}
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@ -1075,8 +1075,7 @@ static void TransmitFor14443b_AsReader(void) {
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// Code a layer 2 command (string of octets, including CRC) into ToSend[],
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// so that it is ready to transmit to the tag using TransmitFor14443b().
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//-----------------------------------------------------------------------------
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static void CodeIso14443bAsReader(const uint8_t *cmd, int len)
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{
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static void CodeIso14443bAsReader(const uint8_t *cmd, int len) {
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/*
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* Reader data transmission:
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* - no modulation ONES
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@ -1112,14 +1111,24 @@ static void CodeIso14443bAsReader(const uint8_t *cmd, int len)
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ToSendStuffBit(0);
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// Data bits
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b = cmd[i];
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if ( b & 1 ) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>1) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>2) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>3) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>4) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>5) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>6) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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if ( (b>>7) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( b & 1 ) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>1) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>2) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>3) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>4) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>5) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>6) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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// if ( (b>>7) & 1) ToSendStuffBit(1); else ToSendStuffBit(0);
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ToSendStuffBit( b & 1);
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ToSendStuffBit( (b>>1) & 1);
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ToSendStuffBit( (b>>2) & 1);
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ToSendStuffBit( (b>>3) & 1);
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ToSendStuffBit( (b>>4) & 1);
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ToSendStuffBit( (b>>5) & 1);
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ToSendStuffBit( (b>>6) & 1);
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ToSendStuffBit( (b>>7) & 1);
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// Stop bit
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ToSendStuffBit(1);
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// EGT extra guard time
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@ -1145,19 +1154,19 @@ static void CodeIso14443bAsReader(const uint8_t *cmd, int len)
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}
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/**
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Convenience function to encode, transmit and trace iso 14443b comms
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**/
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/*
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* Convenience function to encode, transmit and trace iso 14443b comms
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*/
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static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len) {
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uint32_t time_start = GetCountSspClk();
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CodeIso14443bAsReader(cmd, len);
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uint32_t time_start = GetCountSspClk();
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TransmitFor14443b_AsReader();
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if(trigger) LED_A_ON();
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LogTrace(cmd, len, time_start, GetCountSspClk()-time_start, NULL, TRUE);
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}
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@ -136,7 +136,7 @@ int CmdHF14BSnoop(const char *Cmd) {
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int CmdHF14BCmdRaw (const char *Cmd) {
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bool reply = TRUE, power = FALSE, select = FALSE;
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char buf[5]="";
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char buf[5] = "";
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int i = 0;
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uint8_t data[USB_CMD_DATA_SIZE] = {0x00};
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uint16_t datalen = 0;
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@ -202,10 +202,10 @@ int CmdHF14BCmdRaw (const char *Cmd) {
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return 0;
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}
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if(!power)
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if (!power)
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flags |= ISO14B_DISCONNECT;
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if(datalen>0)
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if (datalen>0)
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flags |= ISO14B_RAW;
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// Max buffer is USB_CMD_DATA_SIZE
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@ -249,7 +249,7 @@ static void print_atqb_resp(uint8_t *data, uint8_t cid){
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if (BitRate & 0x04) PrintAndLog(" Bit Rate: 847 kbit/s PICC <- PCD supported");
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if (BitRate & 0x80) PrintAndLog(" Same bit rate <-> required");
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uint16_t maxFrame = data[5]>>4;
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uint16_t maxFrame = data[5] >> 4;
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if (maxFrame < 5) maxFrame = 8 * maxFrame + 16;
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else if (maxFrame == 5) maxFrame = 64;
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else if (maxFrame == 6) maxFrame = 96;
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@ -257,7 +257,7 @@ static void print_atqb_resp(uint8_t *data, uint8_t cid){
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else if (maxFrame == 8) maxFrame = 256;
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else maxFrame = 257;
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PrintAndLog("Max Frame Size: %u%s bytes",maxFrame, (maxFrame == 257) ? "+ RFU" : "");
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PrintAndLog("Max Frame Size: %u%s bytes", maxFrame, (maxFrame == 257) ? "+ RFU" : "");
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uint8_t protocolT = data[5] & 0xF;
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PrintAndLog(" Protocol Type: Protocol is %scompliant with ISO/IEC 14443-4",(protocolT) ? "" : "not " );
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