X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a501c82b196b614295a6e3bf7481da84affb0d8e..b82c2f85e457f361b119d21a31f3263ac3489cc8:/armsrc/iso15693.c diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c index 4a767b56..a6ad58ae 100644 --- a/armsrc/iso15693.c +++ b/armsrc/iso15693.c @@ -58,14 +58,12 @@ // *) document all the functions -#include "../include/proxmark3.h" +#include "proxmark3.h" #include "util.h" #include "apps.h" #include "string.h" -#include "../common/iso15693tools.h" -#include "../common/cmd.h" -#include "crapto1.h" -#include "mifareutil.h" +#include "iso15693tools.h" +#include "cmd.h" #define arraylen(x) (sizeof(x)/sizeof((x)[0])) @@ -225,7 +223,7 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n) static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *wait) { int c; - + volatile uint32_t r; // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX); if(*wait < 10) { *wait = 10; } @@ -233,10 +231,10 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w // for(c = 0; c < *wait;) { // if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { // AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing! -// c++; +// ++c; // } // if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { -// volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; +// r = AT91C_BASE_SSC->SSC_RHR; // (void)r; // } // WDT_HIT(); @@ -246,13 +244,10 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { AT91C_BASE_SSC->SSC_THR = cmd[c]; - c++; - if(c >= len) { - break; - } + if( ++c >= len) break; } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; + r = AT91C_BASE_SSC->SSC_RHR; (void)r; } WDT_HIT(); @@ -266,19 +261,17 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int *wait) { int c = 0; + volatile uint32_t r; FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K); if(*wait < 10) { *wait = 10; } for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { AT91C_BASE_SSC->SSC_THR = cmd[c]; - c++; - if(c >= len) { - break; - } + if( ++c >= len) break; } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; + r = AT91C_BASE_SSC->SSC_RHR; (void)r; } WDT_HIT(); @@ -297,21 +290,19 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int // number of decoded bytes static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { - int c = 0; - uint8_t *dest = (uint8_t *)BigBuf; - int getNext = 0; + uint8_t *dest = BigBuf_get_addr(); + int c = 0; + int getNext = FALSE; int8_t prev = 0; -// NOW READ RESPONSE FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads - c = 0; - getNext = FALSE; + SpinDelay(100); // greg - experiment to get rid of some of the 0 byte/failed reads + for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; - } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { int8_t b; b = (int8_t)AT91C_BASE_SSC->SSC_RHR; @@ -321,18 +312,7 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -439,29 +419,26 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip)) return k; // return the number of bytes demodulated -/// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); - +// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); } // Now the GetISO15693 message from sniffing command static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { - int c = 0; - uint8_t *dest = (uint8_t *)BigBuf; - int getNext = 0; + uint8_t *dest = BigBuf_get_addr(); + int c = 0; + int getNext = FALSE; int8_t prev = 0; - // NOW READ RESPONSE FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads - c = 0; - getNext = FALSE; + SpinDelay(100); // greg - experiment to get rid of some of the 0 byte/failed reads + for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; - } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { int8_t b = (int8_t)AT91C_BASE_SSC->SSC_RHR; @@ -469,9 +446,10 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int // tone that the tag AM-modulates, so every other sample is I, // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. - if (getNext) { + if(getNext) { + int8_t r = ABS(b) + ABS(prev); - dest[c++] = abs(b) + abs(prev); + dest[c++] = (uint8_t)r; if(c >= 20000) { break; @@ -586,13 +564,14 @@ static void BuildIdentifyRequest(void); //----------------------------------------------------------------------------- void AcquireRawAdcSamplesIso15693(void) { - uint8_t *dest = get_bigbufptr_recvrespbuf(); + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); int c = 0; int getNext = 0; int8_t prev = 0; + volatile uint32_t r; - FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + uint8_t *dest = BigBuf_get_addr(); BuildIdentifyRequest(); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); @@ -609,13 +588,10 @@ void AcquireRawAdcSamplesIso15693(void) for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { AT91C_BASE_SSC->SSC_THR = ToSend[c]; - c++; - if(c == ToSendMax+3) { - break; - } + if( ++c == ToSendMax+3) break; } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; + r = AT91C_BASE_SSC->SSC_RHR; (void)r; } WDT_HIT(); @@ -626,9 +602,9 @@ void AcquireRawAdcSamplesIso15693(void) c = 0; getNext = FALSE; for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; - } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { int8_t b; b = (int8_t)AT91C_BASE_SSC->SSC_RHR; @@ -638,24 +614,11 @@ void AcquireRawAdcSamplesIso15693(void) // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + + dest[c++] = (uint8_t)(ABS(b) + ABS(prev)); - dest[c++] = (uint8_t)r; - - if(c >= 2000) { - break; - } + if(c >= 2000) break; + } else { prev = b; } @@ -668,7 +631,7 @@ void AcquireRawAdcSamplesIso15693(void) void RecordRawAdcSamplesIso15693(void) { - uint8_t *dest = get_bigbufptr_recvrespbuf(); + uint8_t *dest = BigBuf_get_addr(); int c = 0; int getNext = 0; @@ -679,8 +642,8 @@ void RecordRawAdcSamplesIso15693(void) FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); @@ -703,18 +666,7 @@ void RecordRawAdcSamplesIso15693(void) // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -867,12 +819,12 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) LED_C_OFF(); LED_D_OFF(); + if (init) Iso15693InitReader(); + int answerLen=0; - uint8_t *answer = (((uint8_t *)BigBuf) + 3660); - if (recv!=NULL) memset(BigBuf + 3660, 0, 100); + uint8_t *answer = BigBuf_get_addr() + 3660; + if (recv != NULL) memset(answer, 0, 100); - if (init) Iso15693InitReader(); - if (!speed) { // low speed (1 out of 256) CodeIso15693AsReader256(send, sendlen); @@ -893,10 +845,7 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) *recv=answer; } - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - LED_D_OFF(); + LEDsoff(); return answerLen; } @@ -982,17 +931,13 @@ void SetDebugIso15693(uint32_t debug) { // Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector // all demodulation performed in arm rather than host. - greg //----------------------------------------------------------------------------- -void ReaderIso15693(uint32_t parameter ) +void ReaderIso15693(uint32_t parameter) { LED_A_ON(); LED_B_ON(); LED_C_OFF(); LED_D_OFF(); - uint8_t *answer1 = (((uint8_t *)BigBuf) + 3660); // - uint8_t *answer2 = (((uint8_t *)BigBuf) + 3760); - uint8_t *answer3 = (((uint8_t *)BigBuf) + 3860); - int answerLen1 = 0; int answerLen2 = 0; int answerLen3 = 0; @@ -1003,20 +948,22 @@ void ReaderIso15693(uint32_t parameter ) int elapsed = 0; uint8_t TagUID[8] = {0x00}; - - // Blank arrays - memset(BigBuf + 3660, 0x00, 300); - FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + uint8_t *answer1 = BigBuf_get_addr() + 3660; + uint8_t *answer2 = BigBuf_get_addr() + 3760; + uint8_t *answer3 = BigBuf_get_addr() + 3860; + // Blank arrays + memset(answer1, 0x00, 300); + SetAdcMuxFor(GPIO_MUXSEL_HIPKD); // Setup SSC FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); - + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); + // Give the tags time to energize FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); SpinDelay(200); @@ -1055,7 +1002,7 @@ void ReaderIso15693(uint32_t parameter ) Dbhexdump(answerLen1,answer1,true); // UID is reverse - if (answerLen1 >= 12) + if (answerLen1>=12) Dbprintf("UID = %02hX%02hX%02hX%02hX%02hX%02hX%02hX%02hX", TagUID[7],TagUID[6],TagUID[5],TagUID[4], TagUID[3],TagUID[2],TagUID[1],TagUID[0]); @@ -1069,14 +1016,14 @@ void ReaderIso15693(uint32_t parameter ) DbdecodeIso15693Answer(answerLen3,answer3); Dbhexdump(answerLen3,answer3,true); - // read all pages - if (answerLen1 >= 12 && DEBUG) { + // read all pages + if (answerLen1>=12 && DEBUG) { i=0; - while (i < 32) { // sanity check, assume max 32 pages + while (i<32) { // sanity check, assume max 32 pages BuildReadBlockRequest(TagUID,i); - TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); - answerLen2 = GetIso15693AnswerFromTag(answer2, 100, &samples, &elapsed); - if (answerLen2 > 0) { + TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); + answerLen2 = GetIso15693AnswerFromTag(answer2, 100, &samples, &elapsed); + if (answerLen2>0) { Dbprintf("READ SINGLE BLOCK %d returned %d octets:",i,answerLen2); DbdecodeIso15693Answer(answerLen2,answer2); Dbhexdump(answerLen2,answer2,true); @@ -1101,25 +1048,23 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) LED_C_OFF(); LED_D_OFF(); - uint8_t *buf = (((uint8_t *)BigBuf) + 3660); // - int answerLen1 = 0; int samples = 0; int tsamples = 0; int wait = 0; int elapsed = 0; - - memset(buf, 0x00, 100); - + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + uint8_t *buf = BigBuf_get_addr() + 3660; + memset(buf, 0x00, 100); + SetAdcMuxFor(GPIO_MUXSEL_HIPKD); FpgaSetupSsc(); // Start from off (no field generated) FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); + SpinDelay(200); LED_A_OFF(); LED_B_OFF(); @@ -1136,7 +1081,7 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) BuildInventoryResponse(uid); - TransmitTo15693Reader(ToSend, ToSendMax, &tsamples, &wait); + TransmitTo15693Reader(ToSend,ToSendMax, &tsamples, &wait); } Dbprintf("%d octets read from reader command: %x %x %x %x %x %x %x %x %x", answerLen1, @@ -1203,7 +1148,7 @@ void BruteforceIso15693Afi(uint32_t speed) void DirectTag15693Command(uint32_t datalen,uint32_t speed, uint32_t recv, uint8_t data[]) { int recvlen=0; - uint8_t *recvbuf=(uint8_t *)BigBuf; + uint8_t *recvbuf = BigBuf_get_addr(); // UsbCommand n; if (DEBUG) {