X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/39cc1c879e3d75b3cafd79e4e139a7f6673dd349..b6851c194edcb16ef0ec3c13038216cabb6a46e0:/armsrc/iso14443a.c diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c index 7bf8f5af..2fffe837 100644 --- a/armsrc/iso14443a.c +++ b/armsrc/iso14443a.c @@ -25,6 +25,7 @@ #include "BigBuf.h" #include "protocols.h" #include "parity.h" +#include "fpgaloader.h" typedef struct { enum { @@ -1220,7 +1221,7 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data) EmSendPrecompiledCmd(p_response); } - if (!tracing) { + if (!get_tracing()) { Dbprintf("Trace Full. Simulation stopped."); break; } @@ -1619,9 +1620,7 @@ void ReaderTransmitBitsPar(uint8_t* frame, uint16_t bits, uint8_t *par, uint32_t LED_A_ON(); // Log reader command in trace buffer - if (tracing) { - LogTrace(frame, nbytes(bits), LastTimeProxToAirStart*16 + DELAY_ARM2AIR_AS_READER, (LastTimeProxToAirStart + LastProxToAirDuration)*16 + DELAY_ARM2AIR_AS_READER, par, true); - } + LogTrace(frame, nbytes(bits), LastTimeProxToAirStart*16 + DELAY_ARM2AIR_AS_READER, (LastTimeProxToAirStart + LastProxToAirDuration)*16 + DELAY_ARM2AIR_AS_READER, par, true); } @@ -1652,9 +1651,7 @@ void ReaderTransmit(uint8_t* frame, uint16_t len, uint32_t *timing) static int ReaderReceiveOffset(uint8_t* receivedAnswer, uint16_t offset, uint8_t *parity) { if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, offset)) return false; - if (tracing) { - LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, false); - } + LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, false); return Demod.len; } @@ -1662,9 +1659,7 @@ static int ReaderReceiveOffset(uint8_t* receivedAnswer, uint16_t offset, uint8_t int ReaderReceive(uint8_t *receivedAnswer, uint8_t *parity) { if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, 0)) return false; - if (tracing) { - LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, false); - } + LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, false); return Demod.len; } @@ -1777,7 +1772,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u if (anticollision) { // SELECT_ALL ReaderTransmit(sel_all, sizeof(sel_all), NULL); - if (!ReaderReceive(resp, resp_par)) return 0; + if (!ReaderReceive(resp, resp_par)) { + return 0; + } if (Demod.collisionPos) { // we had a collision and need to construct the UID bit by bit memset(uid_resp, 0, 4); @@ -1799,7 +1796,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u } collision_answer_offset = uid_resp_bits%8; ReaderTransmitBits(sel_uid, 16 + uid_resp_bits, NULL); - if (!ReaderReceiveOffset(resp, collision_answer_offset, resp_par)) return 0; + if (!ReaderReceiveOffset(resp, collision_answer_offset, resp_par)) { + return 0; + } } // finally, add the last bits and BCC of the UID for (uint16_t i = collision_answer_offset; i < (Demod.len-1)*8; i++, uid_resp_bits++) { @@ -1833,7 +1832,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u ReaderTransmit(sel_uid, sizeof(sel_uid), NULL); // Receive the SAK - if (!ReaderReceive(resp, resp_par)) return 0; + if (!ReaderReceive(resp, resp_par)) { + return 0; + } sak = resp[0]; // Test if more parts of the uid are coming @@ -1868,7 +1869,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u AppendCrc14443a(rats, 2); ReaderTransmit(rats, sizeof(rats), NULL); - if (!(len = ReaderReceive(resp, resp_par))) return 0; + if (!(len = ReaderReceive(resp, resp_par))) { + return 0; + } if(p_hi14a_card) { memcpy(p_hi14a_card->ats, resp, len); @@ -1961,7 +1964,7 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data, uint8_t *res) { return 0; //DATA LINK ERROR } else{ // S-Block WTX - while((data_bytes[0] & 0xF2) == 0xF2) { + while(len && ((data_bytes[0] & 0xF2) == 0xF2)) { uint32_t save_iso14a_timeout = iso14a_get_timeout(); // temporarily increase timeout iso14a_set_timeout(MAX((data_bytes[1] & 0x3f) * save_iso14a_timeout, MAX_ISO14A_TIMEOUT)); @@ -2000,12 +2003,14 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data, uint8_t *res) { } - // cut frame byte - len -= 1; - // memmove(data_bytes, data_bytes + 1, len); - for (int i = 0; i < len; i++) - data_bytes[i] = data_bytes[i + 1]; - + if (len) { + // cut frame byte + len -= 1; + // memmove(data_bytes, data_bytes + 1, len); + for (int i = 0; i < len; i++) + data_bytes[i] = data_bytes[i + 1]; + } + return len; } @@ -2048,7 +2053,7 @@ void ReaderIso14443a(UsbCommand *c) // 1 - all is OK with ATS, 2 - without ATS cantSELECT = true; } - + FpgaDisableTracing(); LED_B_ON(); cmd_send(CMD_ACK,arg0,card->uidlen,0,buf,sizeof(iso14a_card_select_t)); LED_B_OFF(); @@ -2062,6 +2067,7 @@ void ReaderIso14443a(UsbCommand *c) if(param & ISO14A_APDU && !cantSELECT) { uint8_t res; arg0 = iso14_apdu(cmd, len, buf, &res); + FpgaDisableTracing(); LED_B_ON(); cmd_send(CMD_ACK, arg0, res, 0, buf, sizeof(buf)); LED_B_OFF(); @@ -2103,6 +2109,7 @@ void ReaderIso14443a(UsbCommand *c) } } arg0 = ReaderReceive(buf, par); + FpgaDisableTracing(); LED_B_ON(); cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf)); @@ -2419,6 +2426,8 @@ void ReaderMifare(bool first_try) } } + FpgaDisableTracing(); + uint8_t buf[32]; memcpy(buf + 0, uid, 4); num_to_bytes(nt, 4, buf + 4); @@ -2591,6 +2600,7 @@ void RAMFUNC SniffMifare(uint8_t param) { DbpString("COMMAND FINISHED."); FpgaDisableSscDma(); + FpgaDisableTracing(); MfSniffEnd(); Dbprintf("maxDataLen=%x, Uart.state=%x, Uart.len=%x", maxDataLen, Uart.state, Uart.len);