X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d3a22c7dfa87bf5e21d228849a602194be4a0895..49dc1d0a9eafdb1e369ead88c3c8882bc6959a17:/armsrc/iso15693.c diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c index c4f5f612..94040a85 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])) @@ -298,7 +296,7 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { int c = 0; - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int getNext = 0; int8_t prev = 0; @@ -448,12 +446,12 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { int c = 0; - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int getNext = 0; int8_t prev = 0; - // NOW READ RESPONSE +// 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; @@ -469,9 +467,21 @@ 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; - dest[c++] = abs(b) + abs(prev); + if(b < 0) { + r = -b; + } else { + r = b; + } + if(prev < 0) { + r -= prev; + } else { + r += prev; + } + + dest[c++] = (uint8_t)r; if(c >= 20000) { break; @@ -586,7 +596,7 @@ static void BuildIdentifyRequest(void); //----------------------------------------------------------------------------- void AcquireRawAdcSamplesIso15693(void) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int c = 0; int getNext = 0; @@ -668,7 +678,7 @@ void AcquireRawAdcSamplesIso15693(void) void RecordRawAdcSamplesIso15693(void) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int c = 0; int getNext = 0; @@ -679,8 +689,8 @@ 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); @@ -868,8 +878,8 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) LED_D_OFF(); 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(); @@ -982,16 +992,16 @@ 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); + uint8_t *answer1 = BigBuf_get_addr() + 3660; + uint8_t *answer2 = BigBuf_get_addr() + 3760; + uint8_t *answer3 = BigBuf_get_addr() + 3860; int answerLen1 = 0; int answerLen2 = 0; @@ -1003,9 +1013,9 @@ void ReaderIso15693(uint32_t parameter ) int elapsed = 0; uint8_t TagUID[8] = {0x00}; - + // Blank arrays - memset(BigBuf + 3660, 0x00, 300); + memset(answer1, 0x00, 300); FpgaDownloadAndGo(FPGA_BITSTREAM_HF); @@ -1014,9 +1024,9 @@ void ReaderIso15693(uint32_t parameter ) 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 +1065,7 @@ 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 +1079,14 @@ 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); @@ -1101,16 +1111,16 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) LED_C_OFF(); LED_D_OFF(); - uint8_t *buf = (((uint8_t *)BigBuf) + 3660); // + uint8_t *buf = BigBuf_get_addr() + 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); @@ -1118,8 +1128,8 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); LED_A_OFF(); LED_B_OFF(); @@ -1136,7 +1146,7 @@ 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 +1213,7 @@ 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) {