X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/65c2d21d05bc22181206d32e985d2c0920200da1..13fc2e9c71175842dda4dedd878a92e07d519010:/armsrc/mifaresniff.c diff --git a/armsrc/mifaresniff.c b/armsrc/mifaresniff.c index fe57f429..59203478 100644 --- a/armsrc/mifaresniff.c +++ b/armsrc/mifaresniff.c @@ -12,70 +12,71 @@ #include "apps.h" static int sniffState = SNF_INIT; -static uint8_t sniffUIDType; -static uint8_t sniffUID[8]; -static uint8_t sniffATQA[2]; -static uint8_t sniffSAK; -static uint8_t sniffBuf[16]; -static uint32_t timerData; - - -bool MfSniffInit(void){ - memset(sniffUID, 0x00, 8); - memset(sniffATQA, 0x00, 2); +static uint8_t sniffUIDType = 0; +static uint8_t sniffUID[10] = {0,0,0,0,0,0,0,0,0,0}; +static uint8_t sniffATQA[2] = {0,0}; +static uint8_t sniffSAK = 0; +static uint8_t sniffBuf[19]; +static uint32_t timerData = 0; + + +void MfSniffInit(void){ + memset(sniffUID, 0x00, sizeof(sniffUID)); + memset(sniffATQA, 0x00, sizeof(sniffATQA)); + memset(sniffBuf, 0x00, sizeof(sniffBuf)); sniffSAK = 0; sniffUIDType = SNF_UID_4; - - return FALSE; } -bool MfSniffEnd(void){ +void MfSniffEnd(void){ LED_B_ON(); cmd_send(CMD_ACK,0,0,0,0,0); LED_B_OFF(); - - return FALSE; } bool RAMFUNC MfSniffLogic(const uint8_t *data, uint16_t len, uint8_t *parity, uint16_t bitCnt, bool reader) { - if (reader && (len == 1) && (bitCnt == 7)) { // reset on 7-Bit commands from reader + // reset on 7-Bit commands from reader + if (reader && (len == 1) && (bitCnt == 7)) { sniffState = SNF_INIT; } switch (sniffState) { case SNF_INIT:{ - if ((len == 1) && (reader) && (bitCnt == 7) ) { // REQA or WUPA from reader - sniffUIDType = SNF_UID_4; - memset(sniffUID, 0x00, 8); - memset(sniffATQA, 0x00, 2); - sniffSAK = 0; + // REQA or WUPA from reader + if ((len == 1) && (reader) && (bitCnt == 7) ) { + MfSniffInit(); sniffState = SNF_WUPREQ; } break; } case SNF_WUPREQ:{ - if ((!reader) && (len == 2)) { // ATQA from tag - memcpy(sniffATQA, data, 2); + // ATQA from tag + if ((!reader) && (len == 2)) { + sniffATQA[0] = data[0]; + sniffATQA[1] = data[1]; sniffState = SNF_ATQA; } break; } case SNF_ATQA:{ - if ((reader) && (len == 2) && (data[0] == 0x93) && (data[1] == 0x20)) { // Select ALL from reader + // Select ALL from reader + if ((reader) && (len == 2) && (data[0] == 0x93) && (data[1] == 0x20)) { sniffState = SNF_ANTICOL1; } break; } case SNF_ANTICOL1:{ - if ((!reader) && (len == 5) && ((data[0] ^ data[1] ^ data[2] ^ data[3]) == data[4])) { // UID from tag (CL1) + // UID from tag (CL1) + if ((!reader) && (len == 5) && ((data[0] ^ data[1] ^ data[2] ^ data[3]) == data[4])) { memcpy(sniffUID + 3, data, 4); sniffState = SNF_UID1; } break; } case SNF_UID1:{ - if ((reader) && (len == 9) && (data[0] == 0x93) && (data[1] == 0x70) && (CheckCrc14443(CRC_14443_A, data, 9))) { // Select 4 Byte UID from reader + // Select 4 Byte UID from reader + if ((reader) && (len == 9) && (data[0] == 0x93) && (data[1] == 0x70) && (CheckCrc14443(CRC_14443_A, data, 9))) { sniffState = SNF_SAK; } break; @@ -92,7 +93,8 @@ bool RAMFUNC MfSniffLogic(const uint8_t *data, uint16_t len, uint8_t *parity, ui break; } case SNF_ANTICOL2:{ - if ((!reader) && (len == 5) && ((data[0] ^ data[1] ^ data[2] ^ data[3]) == data[4])) { // CL2 UID + // CL2 UID + if ((!reader) && (len == 5) && ((data[0] ^ data[1] ^ data[2] ^ data[3]) == data[4])) { memcpy(sniffUID, sniffUID+4, 3); memcpy(sniffUID+3, data, 4); sniffUIDType = SNF_UID_7; @@ -101,7 +103,25 @@ bool RAMFUNC MfSniffLogic(const uint8_t *data, uint16_t len, uint8_t *parity, ui break; } case SNF_UID2:{ - if ((reader) && (len == 9) && (data[0] == 0x95) && (data[1] == 0x70) && (CheckCrc14443(CRC_14443_A, data, 9))) { // Select 2nd part of 7 Byte UID + // Select 2nd part of 7 Byte UID + if ((reader) && (len == 9) && (data[0] == 0x95) && (data[1] == 0x70) && (CheckCrc14443(CRC_14443_A, data, 9))) { + sniffState = SNF_SAK; + } + break; + } + case SNF_ANTICOL3:{ + // CL3 UID + if ((!reader) && (len == 5) && ((data[0] ^ data[1] ^ data[2] ^ data[3]) == data[4])) { + memcpy(sniffUID, sniffUID+4, 3); + memcpy(sniffUID+3, data, 4); + sniffUIDType = SNF_UID_10; + sniffState = SNF_UID3; + } + break; + } + case SNF_UID3:{ + // Select 3nd part of 10 Byte UID + if ((reader) && (len == 9) && (data[0] == 0x97) && (data[1] == 0x70) && (CheckCrc14443(CRC_14443_A, data, 9))) { sniffState = SNF_SAK; } break; @@ -109,12 +129,12 @@ bool RAMFUNC MfSniffLogic(const uint8_t *data, uint16_t len, uint8_t *parity, ui case SNF_CARD_IDLE:{ // trace the card select sequence sniffBuf[0] = 0xFF; sniffBuf[1] = 0xFF; - memcpy(sniffBuf + 2, sniffUID, 7); - memcpy(sniffBuf + 9, sniffATQA, 2); - sniffBuf[11] = sniffSAK; - sniffBuf[12] = 0xFF; - sniffBuf[13] = 0xFF; - LogTrace(sniffBuf, 14, 0, 0, NULL, TRUE); + memcpy(sniffBuf + 2, sniffUID, sizeof(sniffUID)); + memcpy(sniffBuf + 9, sniffATQA, sizeof(sniffATQA)); + sniffBuf[14] = sniffSAK; + sniffBuf[15] = 0xFF; + sniffBuf[16] = 0xFF; + LogTrace(sniffBuf, sizeof(sniffBuf), 0, 0, NULL, TRUE); } // intentionally no break; case SNF_CARD_CMD:{ LogTrace(data, len, 0, 0, NULL, TRUE); @@ -128,13 +148,10 @@ bool RAMFUNC MfSniffLogic(const uint8_t *data, uint16_t len, uint8_t *parity, ui timerData = GetTickCount(); break; } - default: sniffState = SNF_INIT; break; } - - return FALSE; } @@ -159,7 +176,6 @@ bool intMfSniffSend() { LED_B_ON(); cmd_send(CMD_ACK, 1, BigBuf_get_traceLen(), pckSize, trace + BigBuf_get_traceLen() - pckLen, pckSize); LED_B_OFF(); - pckLen -= pckSize; pckNum++; }