X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6612a5a20136d0d4b11bd7f3fd113f4dd836119f..cfa9c98d573c5a0d35c6ce86501fc6fd57f91b81:/client/cmdhflist.c diff --git a/client/cmdhflist.c b/client/cmdhflist.c index b1d432ee..5384bfce 100644 --- a/client/cmdhflist.c +++ b/client/cmdhflist.c @@ -1,11 +1,12 @@ //----------------------------------------------------------------------------- +// Copyright (C) 2010 iZsh // Copyright (C) Merlok - 2017 // // This code is licensed to you under the terms of the GNU GPL, version 2 or, // at your option, any later version. See the LICENSE.txt file for the text of // the license. //----------------------------------------------------------------------------- -// Command: hf mf list. It shows data from arm buffer. +// Command: hf list. It shows data from arm buffer. //----------------------------------------------------------------------------- #include "cmdhflist.h" @@ -16,23 +17,54 @@ #include #include #include "util.h" -#include "data.h" #include "ui.h" +#include "comms.h" #include "iso14443crc.h" +#include "iso15693tools.h" #include "parity.h" #include "protocols.h" +#include "crapto1/crapto1.h" +#include "mifare/mifarehost.h" +#include "mifare/mifaredefault.h" +#include "usb_cmd.h" +#include "pcsc.h" +typedef struct { + uint32_t uid; // UID + uint32_t nt; // tag challenge + uint32_t nt_enc; // encrypted tag challenge + uint8_t nt_enc_par; // encrypted tag challenge parity + uint32_t nr_enc; // encrypted reader challenge + uint32_t ar_enc; // encrypted reader response + uint8_t ar_enc_par; // encrypted reader response parity + uint32_t at_enc; // encrypted tag response + uint8_t at_enc_par; // encrypted tag response parity + bool first_auth; // is first authentication + uint32_t ks2; // ar ^ ar_enc + uint32_t ks3; // at ^ at_enc +} TAuthData; enum MifareAuthSeq { masNone, masNt, masNrAr, masAt, + masAuthComplete, + masFirstData, masData, - masDataNested, masError, }; + static enum MifareAuthSeq MifareAuthState; +static TAuthData AuthData; + +static void ClearAuthData() { + AuthData.uid = 0; + AuthData.nt = 0; + AuthData.first_auth = true; + AuthData.ks2 = 0; + AuthData.ks3 = 0; +} /** * @brief iso14443A_CRC_check Checks CRC in command or response @@ -43,14 +75,14 @@ static enum MifareAuthSeq MifareAuthState; * 1 : CRC-command, CRC ok * 2 : Not crc-command */ -uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len) +static uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len) { uint8_t b1,b2; if(len <= 2) return 2; if(isResponse & (len < 6)) return 2; - + ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2); if (b1 != data[len-2] || b2 != data[len-1]) { return 0; @@ -59,17 +91,295 @@ uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len) } } -uint8_t mifare_CRC_check(bool isResponse, uint8_t* data, uint8_t len) + +static uint8_t iso14443_4_CRC_check(uint8_t* data, uint8_t len) +{ + uint8_t b1,b2; + + if(len <= 2) return 2; + + ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2); + if (b1 != data[len-2] || b2 != data[len-1]) { + return 0; + } else { + return 1; + } +} + + +static uint8_t mifare_CRC_check(bool isResponse, uint8_t* data, uint8_t len) { switch(MifareAuthState) { case masNone: - case masData: - case masDataNested: case masError: return iso14443A_CRC_check(isResponse, data, len); default: return 2; } +} + + +/** + * @brief iso14443B_CRC_check Checks CRC in command or response + * @param isResponse + * @param data + * @param len + * @return 0 : CRC-command, CRC not ok + * 1 : CRC-command, CRC ok + * 2 : Not crc-command + */ +static uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len) +{ + uint8_t b1,b2; + + if(len <= 2) return 2; + + ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2); + if(b1 != data[len-2] || b2 != data[len-1]) { + return 0; + } else { + return 1; + } +} + + +static uint8_t iso15693_CRC_check(uint8_t* d, uint16_t n) +{ + if (n <= 2) return 2; + + return (Iso15693Crc(d, n) == ISO15693_CRC_CHECK ? 1 : 0); +} + + +/** + * @brief iclass_CRC_Ok Checks CRC in command or response + * @param isResponse + * @param data + * @param len + * @return 0 : CRC-command, CRC not ok + * 1 : CRC-command, CRC ok + * 2 : Not crc-command + */ +uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len) +{ + if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes + + uint8_t b1, b2; + + if(!isResponse)//Commands to tag + { + /** + These commands should have CRC. Total length leftmost + 4 READ + 4 READ4 + 12 UPDATE - unsecured, ends with CRC16 + 14 UPDATE - secured, ends with signature instead + 4 PAGESEL + **/ + if(len == 4 || len == 12)//Covers three of them + { + //Don't include the command byte + ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2); + return b1 == data[len -2] && b2 == data[len-1]; + } + return 2; + }else{ + /** + These tag responses should have CRC. Total length leftmost + + 10 READ data[8] crc[2] + 34 READ4 data[32]crc[2] + 10 UPDATE data[8] crc[2] + 10 SELECT csn[8] crc[2] + 10 IDENTIFY asnb[8] crc[2] + 10 PAGESEL block1[8] crc[2] + 10 DETECT csn[8] crc[2] + + These should not + + 4 CHECK chip_response[4] + 8 READCHECK data[8] + 1 ACTALL sof[1] + 1 ACT sof[1] + + In conclusion, without looking at the command; any response + of length 10 or 34 should have CRC + **/ + if(len != 10 && len != 34) return true; + + ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2); + return b1 == data[len -2] && b2 == data[len-1]; + } +} + + +void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]) + { + case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break; + case ICLASS_CMD_READ_OR_IDENTIFY:{ + if(cmdsize > 1){ + snprintf(exp,size,"READ(%d)",cmd[1]); + }else{ + snprintf(exp,size,"IDENTIFY"); + } + break; + } + case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break; + case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break; + case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break; + case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break; + case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break; + case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break; + case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break; + case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break; + case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break; + case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break; + default: snprintf(exp,size,"?"); break; + } + return; +} + + +void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[1]){ + // Mandatory Commands, all Tags must support them: + case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");return; + case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");return; + // Optional Commands, Tags may support them: + case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");return; + case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");return; + case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");return; + case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");return; + case ISO15693_SELECT :snprintf(exp, size, "SELECT");return; + case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");return; + case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");return; + case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");return; + case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");return; + case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");return; + case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");return; + case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");return; + default: break; + } + + if (cmd[1] > ISO15693_STAYQUIET && cmd[1] < ISO15693_READBLOCK) snprintf(exp, size, "Mandatory RFU"); + else if (cmd[1] > ISO15693_READ_MULTI_SECSTATUS && cmd[1] <= 0x9F) snprintf(exp, size, "Optional RFU"); + else if ( cmd[1] >= 0xA0 && cmd[1] <= 0xDF ) snprintf(exp, size, "Custom command"); + else if ( cmd[1] >= 0xE0 && cmd[1] <= 0xFF ) snprintf(exp, size, "Proprietary command"); +} + + +void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]) { + case TOPAZ_REQA :snprintf(exp, size, "REQA");break; + case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break; + case TOPAZ_RID :snprintf(exp, size, "RID");break; + case TOPAZ_RALL :snprintf(exp, size, "RALL");break; + case TOPAZ_READ :snprintf(exp, size, "READ");break; + case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break; + case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break; + case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break; + case TOPAZ_READ8 :snprintf(exp, size, "READ8");break; + case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break; + case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break; + default: snprintf(exp,size,"?"); break; + } +} + + +void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch ( cmd[1] ){ + case ISO7816_READ_BINARY :snprintf(exp, size, "READ BINARY");break; + case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BINARY");break; + case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BINARY");break; + case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BINARY");break; + case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORD(S)");break; + case ISO7816_WRITE_RECORD :snprintf(exp, size, "WRITE RECORD");break; + case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break; + case ISO7816_UPDATE_DATA :snprintf(exp, size, "UPDATE DATA");break; + case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break; + case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break; + case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break; + case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break; + case ISO7816_INTERNAL_AUTHENTICATE :snprintf(exp, size, "INTERNAL AUTHENTICATE");break; + case ISO7816_EXTERNAL_AUTHENTICATE :snprintf(exp, size, "EXTERNAL AUTHENTICATE");break; + case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break; + case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break; + case ISO7816_GET_RESPONSE :snprintf(exp, size, "GET RESPONSE");break; + case ISO7816_ENVELOPE :snprintf(exp, size, "ENVELOPE");break; + case ISO7816_GET_PROCESSING_OPTIONS :snprintf(exp, size, "GET PROCESSING OPTIONS");break; + default :snprintf(exp,size,"?"); break; + } +} + + +void annotateIso14443_4(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){ + // S-block + if ((cmd[0] & 0xc3) == 0xc2) { + switch (cmd[0] & 0x30) { + case 0x00 : snprintf(exp, size, "S-block DESELECT"); break; + case 0x30 : snprintf(exp, size, "S-block WTX"); break; + default : snprintf(exp, size, "S-block (RFU)"); break; + } + } + // R-block (ack) + else if ((cmd[0] & 0xe0) == 0xa0) { + if ((cmd[0] & 0x10) == 0) + snprintf(exp, size, "R-block ACK"); + else + snprintf(exp, size, "R-block NACK"); + } + // I-block + else { + int pos = 1; + switch (cmd[0] & 0x0c) { + case 0x08: // CID following + case 0x04: // NAD following + pos = 2; + break; + case 0x0c: // CID and NAD following + pos = 3; + break; + default: + pos = 1; // no CID, no NAD + break; + } + annotateIso7816(exp, size, &cmd[pos], cmdsize-pos); + } +} + + +/** +06 00 = INITIATE +0E xx = SELECT ID (xx = Chip-ID) +0B = Get UID +08 yy = Read Block (yy = block number) +09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written) +0C = Reset to Inventory +0F = Completion +0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate) +**/ + +void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]){ + case ISO14443B_REQB : snprintf(exp,size,"REQB");break; + case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break; + case ISO14443B_HALT : snprintf(exp,size,"HALT");break; + case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break; + case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break; + case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break; + case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break; + case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break; + case ISO14443B_RESET : snprintf(exp,size,"RESET");break; + case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break; + case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break; + default : snprintf(exp,size ,"?");break; + } } @@ -77,7 +387,9 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) { switch(cmd[0]) { - case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break; + case ISO14443A_CMD_WUPA: + snprintf(exp,size,"WUPA"); + break; case ISO14443A_CMD_ANTICOLL_OR_SELECT:{ // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor) // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK) @@ -100,36 +412,38 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) snprintf(exp,size,"ANTICOLL-2"); break; } } - case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break; - case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break; - case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break; - case ISO14443A_CMD_HALT: - snprintf(exp,size,"HALT"); + case ISO14443A_CMD_REQA: + snprintf(exp,size,"REQA"); + break; + case MIFARE_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break; + case MIFARE_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break; + case ISO14443A_CMD_HALT: + snprintf(exp,size,"HALT"); MifareAuthState = masNone; break; - case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break; - case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break; - case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break; - case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break; - case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break; + case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break; + case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break; + case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break; + case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break; + case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break; case MIFARE_AUTH_KEYA: if ( cmdsize > 3) { - snprintf(exp,size,"AUTH-A(%d)",cmd[1]); + snprintf(exp,size,"AUTH-A(%d)",cmd[1]); MifareAuthState = masNt; } else { - // case MIFARE_ULEV1_VERSION : both 0x60. + // case MIFARE_ULEV1_VERSION : both 0x60. snprintf(exp,size,"EV1 VERSION"); } break; case MIFARE_AUTH_KEYB: MifareAuthState = masNt; - snprintf(exp,size,"AUTH-B(%d)",cmd[1]); + snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break; - case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break; - case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break; - case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break; - case MIFARE_ULC_AUTH_1: snprintf(exp,size,"AUTH "); break; - case MIFARE_ULC_AUTH_2: snprintf(exp,size,"AUTH_ANSW"); break; + case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break; + case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break; + case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break; + case MIFARE_ULC_AUTH_1: snprintf(exp,size,"AUTH "); break; + case MIFARE_ULC_AUTH_2: snprintf(exp,size,"AUTH_ANSW"); break; case MIFARE_ULEV1_AUTH: if ( cmdsize == 7 ) snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] ); @@ -138,14 +452,14 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) break; case MIFARE_ULEV1_FASTREAD:{ if ( cmdsize >=3 && cmd[2] <= 0xE6) - snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]); + snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]); else snprintf(exp,size,"?"); break; } case MIFARE_ULC_WRITE:{ if ( cmd[1] < 0x21 ) - snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); + snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); else snprintf(exp,size,"?"); break; @@ -164,40 +478,72 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) snprintf(exp,size,"?"); break; } - case MIFARE_ULEV1_READSIG: snprintf(exp,size,"READ_SIG"); break; - case MIFARE_ULEV1_CHECKTEAR: snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break; - case MIFARE_ULEV1_VCSL: snprintf(exp,size,"VCSL"); break; - default: snprintf(exp,size,"?"); break; + case MIFARE_ULEV1_READSIG: snprintf(exp,size,"READ_SIG"); break; + case MIFARE_ULEV1_CHECKTEAR: snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break; + case MIFARE_ULEV1_VCSL: snprintf(exp,size,"VCSL"); break; + default: snprintf(exp,size,"?"); break; } return; } -void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, bool isResponse) { +void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, uint8_t* parity, uint8_t paritysize, bool isResponse) { + if (!isResponse && cmdsize == 1) { + switch(cmd[0]) { + case ISO14443A_CMD_WUPA: + case ISO14443A_CMD_REQA: + MifareAuthState = masNone; + break; + default: + break; + } + } + + // get UID + if (MifareAuthState == masNone) { + if (cmdsize == 9 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && cmd[1] == 0x70) { + ClearAuthData(); + AuthData.uid = bytes_to_num(&cmd[2], 4); + } + if (cmdsize == 9 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_2 && cmd[1] == 0x70) { + ClearAuthData(); + AuthData.uid = bytes_to_num(&cmd[2], 4); + } + } + switch(MifareAuthState) { case masNt: - if (cmdsize == 4) { - snprintf(exp,size,"AUTH: nt"); + if (cmdsize == 4 && isResponse) { + snprintf(exp,size,"AUTH: nt %s", (AuthData.first_auth) ? "" : "(enc)"); MifareAuthState = masNrAr; - printf("--ntok\n"); + if (AuthData.first_auth) { + AuthData.nt = bytes_to_num(cmd, 4); + } else { + AuthData.nt_enc = bytes_to_num(cmd, 4); + AuthData.nt_enc_par = parity[0]; + } return; } else { MifareAuthState = masError; - printf("--err %d\n", cmdsize); } break; case masNrAr: - if (cmdsize == 8) { - snprintf(exp,size,"AUTH: nr ar"); + if (cmdsize == 8 && !isResponse) { + snprintf(exp,size,"AUTH: nr ar (enc)"); MifareAuthState = masAt; + AuthData.nr_enc = bytes_to_num(cmd, 4); + AuthData.ar_enc = bytes_to_num(&cmd[4], 4); + AuthData.ar_enc_par = parity[0] << 4; return; } else { MifareAuthState = masError; } break; case masAt: - if (cmdsize == 4) { - snprintf(exp,size,"AUTH: at"); - MifareAuthState = masData; + if (cmdsize == 4 && isResponse) { + snprintf(exp,size,"AUTH: at (enc)"); + MifareAuthState = masAuthComplete; + AuthData.at_enc = bytes_to_num(cmd, 4); + AuthData.at_enc_par = parity[0]; return; } else { MifareAuthState = masError; @@ -206,8 +552,692 @@ void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, bool default: break; } - - if (!isResponse) + + if (!isResponse && ((MifareAuthState == masNone) || (MifareAuthState == masError))) annotateIso14443a(exp, size, cmd, cmdsize); + +} + + +static uint64_t GetCrypto1ProbableKey(TAuthData *ad) { + struct Crypto1State *revstate = lfsr_recovery64(ad->ks2, ad->ks3); + lfsr_rollback_word(revstate, 0, 0); + lfsr_rollback_word(revstate, 0, 0); + lfsr_rollback_word(revstate, ad->nr_enc, 1); + lfsr_rollback_word(revstate, ad->uid ^ ad->nt, 0); + + uint64_t lfsr = 0; + crypto1_get_lfsr(revstate, &lfsr); + crypto1_destroy(revstate); + + return lfsr; +} + + +static bool NTParityChk(TAuthData *ad, uint32_t ntx) { + if ( + (oddparity8(ntx >> 8 & 0xff) ^ (ntx & 0x01) ^ ((ad->nt_enc_par >> 5) & 0x01) ^ (ad->nt_enc & 0x01)) || + (oddparity8(ntx >> 16 & 0xff) ^ (ntx >> 8 & 0x01) ^ ((ad->nt_enc_par >> 6) & 0x01) ^ (ad->nt_enc >> 8 & 0x01)) || + (oddparity8(ntx >> 24 & 0xff) ^ (ntx >> 16 & 0x01) ^ ((ad->nt_enc_par >> 7) & 0x01) ^ (ad->nt_enc >> 16 & 0x01)) + ) + return false; + + uint32_t ar = prng_successor(ntx, 64); + if ( + (oddparity8(ar >> 8 & 0xff) ^ (ar & 0x01) ^ ((ad->ar_enc_par >> 5) & 0x01) ^ (ad->ar_enc & 0x01)) || + (oddparity8(ar >> 16 & 0xff) ^ (ar >> 8 & 0x01) ^ ((ad->ar_enc_par >> 6) & 0x01) ^ (ad->ar_enc >> 8 & 0x01)) || + (oddparity8(ar >> 24 & 0xff) ^ (ar >> 16 & 0x01) ^ ((ad->ar_enc_par >> 7) & 0x01) ^ (ad->ar_enc >> 16 & 0x01)) + ) + return false; + + uint32_t at = prng_successor(ntx, 96); + if ( + (oddparity8(ar & 0xff) ^ (at >> 24 & 0x01) ^ ((ad->ar_enc_par >> 4) & 0x01) ^ (ad->at_enc >> 24 & 0x01)) || + (oddparity8(at >> 8 & 0xff) ^ (at & 0x01) ^ ((ad->at_enc_par >> 5) & 0x01) ^ (ad->at_enc & 0x01)) || + (oddparity8(at >> 16 & 0xff) ^ (at >> 8 & 0x01) ^ ((ad->at_enc_par >> 6) & 0x01) ^ (ad->at_enc >> 8 & 0x01)) || + (oddparity8(at >> 24 & 0xff) ^ (at >> 16 & 0x01) ^ ((ad->at_enc_par >> 7) & 0x01) ^ (ad->at_enc >> 16 & 0x01)) + ) + return false; + + return true; +} + + +static bool CheckCrypto1Parity(uint8_t *cmd_enc, uint8_t cmdsize, uint8_t *cmd, uint8_t *parity_enc) { + for (int i = 0; i < cmdsize - 1; i++) { + if (oddparity8(cmd[i]) ^ (cmd[i + 1] & 0x01) ^ ((parity_enc[i / 8] >> (7 - i % 8)) & 0x01) ^ (cmd_enc[i + 1] & 0x01)) + return false; + } + + return true; +} + + +static bool NestedCheckKey(uint64_t key, TAuthData *ad, uint8_t *cmd, uint8_t cmdsize, uint8_t *parity) { + uint8_t buf[32] = {0}; + struct Crypto1State *pcs; + + AuthData.ks2 = 0; + AuthData.ks3 = 0; + + pcs = crypto1_create(key); + uint32_t nt1 = crypto1_word(pcs, ad->nt_enc ^ ad->uid, 1) ^ ad->nt_enc; + uint32_t ar = prng_successor(nt1, 64); + uint32_t at = prng_successor(nt1, 96); + + crypto1_word(pcs, ad->nr_enc, 1); +// uint32_t nr1 = crypto1_word(pcs, ad->nr_enc, 1) ^ ad->nr_enc; // if needs deciphered nr + uint32_t ar1 = crypto1_word(pcs, 0, 0) ^ ad->ar_enc; + uint32_t at1 = crypto1_word(pcs, 0, 0) ^ ad->at_enc; + + if (!(ar == ar1 && at == at1 && NTParityChk(ad, nt1))) { + crypto1_destroy(pcs); + return false; + } + + memcpy(buf, cmd, cmdsize); + mf_crypto1_decrypt(pcs, buf, cmdsize, 0); + + crypto1_destroy(pcs); + + if (!CheckCrypto1Parity(cmd, cmdsize, buf, parity)) + return false; + + if(!CheckCrc14443(CRC_14443_A, buf, cmdsize)) + return false; + + AuthData.nt = nt1; + AuthData.ks2 = AuthData.ar_enc ^ ar; + AuthData.ks3 = AuthData.at_enc ^ at; + + return true; +} + + +static bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, uint8_t *parity, bool isResponse, uint8_t *mfData, size_t *mfDataLen) { + static struct Crypto1State *traceCrypto1; + static uint64_t mfLastKey; + + *mfDataLen = 0; + + if (MifareAuthState == masAuthComplete) { + if (traceCrypto1) { + crypto1_destroy(traceCrypto1); + traceCrypto1 = NULL; + } + + MifareAuthState = masFirstData; + return false; + } + + if (cmdsize > 32) + return false; + + if (MifareAuthState == masFirstData) { + if (AuthData.first_auth) { + AuthData.ks2 = AuthData.ar_enc ^ prng_successor(AuthData.nt, 64); + AuthData.ks3 = AuthData.at_enc ^ prng_successor(AuthData.nt, 96); + + mfLastKey = GetCrypto1ProbableKey(&AuthData); + PrintAndLog(" | * | key | probable key:%012"PRIx64" Prng:%s ks2:%08x ks3:%08x | |", + mfLastKey, + validate_prng_nonce(AuthData.nt) ? "WEAK": "HARD", + AuthData.ks2, + AuthData.ks3); + + AuthData.first_auth = false; + + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + } else { + if (traceCrypto1) { + crypto1_destroy(traceCrypto1); + traceCrypto1 = NULL; + } + + // check last used key + if (mfLastKey) { + if (NestedCheckKey(mfLastKey, &AuthData, cmd, cmdsize, parity)) { + PrintAndLog(" | * | key | last used key:%012"PRIx64" ks2:%08x ks3:%08x | |", + mfLastKey, + AuthData.ks2, + AuthData.ks3); + + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + }; + } + + // check default keys + if (!traceCrypto1) { + for (int defaultKeyCounter = 0; defaultKeyCounter < MifareDefaultKeysSize; defaultKeyCounter++){ + if (NestedCheckKey(MifareDefaultKeys[defaultKeyCounter], &AuthData, cmd, cmdsize, parity)) { + PrintAndLog(" | * | key | default key:%012"PRIx64" ks2:%08x ks3:%08x | |", + MifareDefaultKeys[defaultKeyCounter], + AuthData.ks2, + AuthData.ks3); + + mfLastKey = MifareDefaultKeys[defaultKeyCounter]; + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + break; + }; + } + } + + // nested + if (!traceCrypto1 && validate_prng_nonce(AuthData.nt)) { + uint32_t ntx = prng_successor(AuthData.nt, 90); + for (int i = 0; i < 16383; i++) { + ntx = prng_successor(ntx, 1); + if (NTParityChk(&AuthData, ntx)){ + + uint32_t ks2 = AuthData.ar_enc ^ prng_successor(ntx, 64); + uint32_t ks3 = AuthData.at_enc ^ prng_successor(ntx, 96); + struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3); + memcpy(mfData, cmd, cmdsize); + mf_crypto1_decrypt(pcs, mfData, cmdsize, 0); + + crypto1_destroy(pcs); + if (CheckCrypto1Parity(cmd, cmdsize, mfData, parity) && CheckCrc14443(CRC_14443_A, mfData, cmdsize)) { + AuthData.ks2 = ks2; + AuthData.ks3 = ks3; + + AuthData.nt = ntx; + mfLastKey = GetCrypto1ProbableKey(&AuthData); + PrintAndLog(" | * | key | nested probable key:%012"PRIx64" ks2:%08x ks3:%08x | |", + mfLastKey, + AuthData.ks2, + AuthData.ks3); + + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + break; + } + } + } + } + + //hardnested + if (!traceCrypto1) { + printf("hardnested not implemented. uid:%x nt:%x ar_enc:%x at_enc:%x\n", AuthData.uid, AuthData.nt, AuthData.ar_enc, AuthData.at_enc); + MifareAuthState = masError; + + /* TOO SLOW( needs to have more strong filter. with this filter - aprox 4 mln tests + uint32_t t = msclock(); + uint32_t t1 = t; + int n = 0; + for (uint32_t i = 0; i < 0xFFFFFFFF; i++) { + if (NTParityChk(&AuthData, i)){ + + uint32_t ks2 = AuthData.ar_enc ^ prng_successor(i, 64); + uint32_t ks3 = AuthData.at_enc ^ prng_successor(i, 96); + struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3); + + + + + n++; + + if (!(n % 100000)) { + printf("delta=%d n=%d ks2=%x ks3=%x \n", msclock() - t1 , n, ks2, ks3); + t1 = msclock(); + } + + } + } + printf("delta=%d n=%d\n", msclock() - t, n); + */ + } + } + + + + MifareAuthState = masData; + } + + if (MifareAuthState == masData && traceCrypto1) { + memcpy(mfData, cmd, cmdsize); + mf_crypto1_decrypt(traceCrypto1, mfData, cmdsize, 0); + *mfDataLen = cmdsize; + } + + return *mfDataLen > 0; +} + + +bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen) +{ + return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen); +} + + +bool next_record_is_response(uint16_t tracepos, uint8_t *trace) +{ + uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t))); + + return(next_records_datalen & 0x8000); +} + + +bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len) +{ + +#define MAX_TOPAZ_READER_CMD_LEN 16 + + uint32_t last_timestamp = timestamp + *duration; + + if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false; + + memcpy(topaz_reader_command, frame, *data_len); + + while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) { + uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos)); + *tracepos += sizeof(uint32_t); + uint16_t next_duration = *((uint16_t *)(trace + *tracepos)); + *tracepos += sizeof(uint16_t); + uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF; + *tracepos += sizeof(uint16_t); + uint8_t *next_frame = (trace + *tracepos); + *tracepos += next_data_len; + if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) { + memcpy(topaz_reader_command + *data_len, next_frame, next_data_len); + *data_len += next_data_len; + last_timestamp = next_timestamp + next_duration; + } else { + // rewind and exit + *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t); + break; + } + uint16_t next_parity_len = (next_data_len-1)/8 + 1; + *tracepos += next_parity_len; + } + + *duration = last_timestamp - timestamp; + + return true; +} + + +uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes) +{ + bool isResponse; + uint16_t data_len, parity_len; + uint32_t duration; + uint8_t topaz_reader_command[9]; + uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp; + char explanation[30] = {0}; + uint8_t mfData[32] = {0}; + size_t mfDataLen = 0; + + if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen; + + first_timestamp = *((uint32_t *)(trace)); + timestamp = *((uint32_t *)(trace + tracepos)); + + tracepos += 4; + duration = *((uint16_t *)(trace + tracepos)); + tracepos += 2; + data_len = *((uint16_t *)(trace + tracepos)); + tracepos += 2; + + if (data_len & 0x8000) { + data_len &= 0x7fff; + isResponse = true; + } else { + isResponse = false; + } + parity_len = (data_len-1)/8 + 1; + + if (tracepos + data_len + parity_len > traceLen) { + return traceLen; + } + uint8_t *frame = trace + tracepos; + tracepos += data_len; + uint8_t *parityBytes = trace + tracepos; + tracepos += parity_len; + + if (protocol == TOPAZ && !isResponse) { + // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each. + // merge them: + if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) { + frame = topaz_reader_command; + } + } + + //Check the CRC status + uint8_t crcStatus = 2; + + if (data_len > 2) { + switch (protocol) { + case ICLASS: + crcStatus = iclass_CRC_check(isResponse, frame, data_len); + break; + case ISO_14443B: + case TOPAZ: + crcStatus = iso14443B_CRC_check(isResponse, frame, data_len); + break; + case PROTO_MIFARE: + crcStatus = mifare_CRC_check(isResponse, frame, data_len); + break; + case ISO_14443A: + crcStatus = iso14443A_CRC_check(isResponse, frame, data_len); + break; + case ISO_14443_4: + crcStatus = iso14443_4_CRC_check(frame, data_len); + break; + case ISO_15693: + crcStatus = iso15693_CRC_check(frame, data_len); + break; + default: + break; + } + } + //0 CRC-command, CRC not ok + //1 CRC-command, CRC ok + //2 Not crc-command + + //--- Draw the data column + char line[16][110]; + + for (int j = 0; j < data_len && j/16 < 16; j++) { + uint8_t parityBits = parityBytes[j>>3]; + if (protocol != ISO_14443B + && protocol != ISO_15693 + && protocol != ISO_7816_4 + && (isResponse || protocol == ISO_14443A) + && (oddparity8(frame[j]) != ((parityBits >> (7-(j&0x0007))) & 0x01))) { + snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x!", frame[j]); + } else { + snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x ", frame[j]); + } + } + + if (markCRCBytes) { + if(crcStatus == 0 || crcStatus == 1) + {//CRC-command + char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4); + (*pos1) = '['; + char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4); + sprintf(pos2, "%c", ']'); + } + } + + // mark short bytes (less than 8 Bit + Parity) + if (protocol == ISO_14443A || protocol == PROTO_MIFARE) { + if (duration < 128 * (9 * data_len)) { + line[(data_len-1)/16][((data_len-1)%16) * 4 + 3] = '\''; + } + } + if (data_len == 0) { + sprintf(line[0]," "); + } + + //--- Draw the CRC column + char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " ")); + + EndOfTransmissionTimestamp = timestamp + duration; + + if (protocol == PROTO_MIFARE) + annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, parity_len, isResponse); + + if(!isResponse) + { + switch(protocol) { + case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break; + case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break; + case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break; + case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break; + case ISO_15693: annotateIso15693(explanation,sizeof(explanation),frame,data_len); break; + case ISO_7816_4: annotateIso7816(explanation, sizeof(explanation), frame, data_len); break; + case ISO_14443_4: annotateIso14443_4(explanation, sizeof(explanation), frame, data_len); break; + default: break; + } + } + + int num_lines = MIN((data_len - 1)/16 + 1, 16); + for (int j = 0; j < num_lines ; j++) { + if (j == 0) { + PrintAndLog(" %10" PRIu32 " | %10" PRIu32 " | %s |%-64s | %s| %s", + (timestamp - first_timestamp), + (EndOfTransmissionTimestamp - first_timestamp), + (isResponse ? "Tag" : "Rdr"), + line[j], + (j == num_lines-1) ? crc : " ", + (j == num_lines-1) ? explanation : ""); + } else { + PrintAndLog(" | | |%-64s | %s| %s", + line[j], + (j == num_lines-1) ? crc : " ", + (j == num_lines-1) ? explanation : ""); + } + } + + if (DecodeMifareData(frame, data_len, parityBytes, isResponse, mfData, &mfDataLen)) { + memset(explanation, 0x00, sizeof(explanation)); + if (!isResponse) { + explanation[0] = '>'; + annotateIso14443a(&explanation[1], sizeof(explanation) - 1, mfData, mfDataLen); + } + uint8_t crcc = iso14443A_CRC_check(isResponse, mfData, mfDataLen); + PrintAndLog(" | * | dec |%-64s | %-4s| %s", + sprint_hex(mfData, mfDataLen), + (crcc == 0 ? "!crc" : (crcc == 1 ? " ok " : " ")), + (true) ? explanation : ""); + }; + + if (is_last_record(tracepos, trace, traceLen)) return traceLen; + + if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) { + uint32_t next_timestamp = *((uint32_t *)(trace + tracepos)); + PrintAndLog(" %10d | %10d | %s | fdt (Frame Delay Time): %d", + (EndOfTransmissionTimestamp - first_timestamp), + (next_timestamp - first_timestamp), + " ", + (next_timestamp - EndOfTransmissionTimestamp)); + } + + return tracepos; +} + + +int CmdHFList(const char *Cmd) +{ + bool showWaitCycles = false; + bool markCRCBytes = false; + bool loadFromFile = false; + bool PCSCtrace = false; + bool saveToFile = false; + char param1 = '\0'; + char param2 = '\0'; + char param3 = '\0'; + char param4 = '\0'; + char type[40] = {0}; + char filename[FILE_PATH_SIZE] = {0}; + uint8_t protocol = 0; + + // parse command line + int tlen = param_getstr(Cmd, 0, type, sizeof(type)); + if (param_getlength(Cmd, 1) == 1) { + param1 = param_getchar(Cmd, 1); + } else { + param_getstr(Cmd, 1, filename, sizeof(filename)); + } + if (param_getlength(Cmd, 2) == 1) { + param2 = param_getchar(Cmd, 2); + } else if (strlen(filename) == 0) { + param_getstr(Cmd, 2, filename, sizeof(filename)); + } + if (param_getlength(Cmd, 3) == 1) { + param3 = param_getchar(Cmd, 3); + } else if (strlen(filename) == 0) { + param_getstr(Cmd, 3, filename, sizeof(filename)); + } + if (param_getlength(Cmd, 4) == 1) { + param4 = param_getchar(Cmd, 4); + } else if (strlen(filename) == 0) { + param_getstr(Cmd, 4, filename, sizeof(filename)); + } + + // Validate params + bool errors = false; + + if(tlen == 0) { + errors = true; + } + + if(param1 == 'h' + || (param1 != 0 && param1 != 'f' && param1 != 'c' && param1 != 'l' && param1 != 'p') + || (param2 != 0 && param2 != 'f' && param2 != 'c' && param2 != 'l' && param1 != 'p') + || (param3 != 0 && param3 != 'f' && param3 != 'c' && param3 != 'l' && param1 != 'p') + || (param4 != 0 && param4 != 'f' && param4 != 'c' && param4 != 'l' && param4 != 'p')) { + errors = true; + } + + if(!errors) { + if (strcmp(type, "iclass") == 0) protocol = ICLASS; + else if(strcmp(type, "14a") == 0) protocol = ISO_14443A; + else if(strcmp(type, "mf") == 0) protocol = PROTO_MIFARE; + else if(strcmp(type, "14b") == 0) protocol = ISO_14443B; + else if(strcmp(type, "topaz") == 0) protocol = TOPAZ; + else if(strcmp(type, "7816") == 0) protocol = ISO_7816_4; + else if(strcmp(type, "14-4") == 0) protocol = ISO_14443_4; + else if(strcmp(type, "15") == 0) protocol = ISO_15693; + else if(strcmp(type, "raw") == 0) protocol = -1;//No crc, no annotations + else if (strcmp(type, "save") == 0) saveToFile = true; + else errors = true; + } + + if (param1 == 'f' || param2 == 'f' || param3 == 'f' || param4 == 'f') { + showWaitCycles = true; + } + + if (param1 == 'c' || param2 == 'c' || param3 == 'c' || param4 == 'c') { + markCRCBytes = true; + } + + if (param1 == 'l' || param2 == 'l' || param3 == 'l' || param4 == 'l') { + loadFromFile = true; + } + + if (param1 == 'p' || param2 == 'p' || param3 == 'p' || param4 == 'p') { + PCSCtrace = true; + } + + if ((loadFromFile || saveToFile) && strlen(filename) == 0) { + errors = true; + } + + if (loadFromFile && saveToFile) { + errors = true; + } + + if (errors) { + PrintAndLog("List or save protocol data."); + PrintAndLog("Usage: hf list [f] [c] [p] [l ]"); + PrintAndLog(" hf list save "); + PrintAndLog(" f - show frame delay times as well"); + PrintAndLog(" c - mark CRC bytes"); + PrintAndLog(" p - use trace buffer from PCSC card reader instead of PM3"); + PrintAndLog(" l - load data from file instead of trace buffer"); + PrintAndLog(" save - save data to file"); + PrintAndLog("Supported values:"); + PrintAndLog(" raw - just show raw data without annotations"); + PrintAndLog(" 14a - interpret data as iso14443a communications"); + PrintAndLog(" mf - interpret data as iso14443a communications and decrypt crypto1 stream"); + PrintAndLog(" 14b - interpret data as iso14443b communications"); + PrintAndLog(" 15 - interpret data as iso15693 communications"); + PrintAndLog(" iclass - interpret data as iclass communications"); + PrintAndLog(" topaz - interpret data as topaz communications"); + PrintAndLog(" 7816 - interpret data as 7816-4 APDU communications"); + PrintAndLog(" 14-4 - interpret data as ISO14443-4 communications"); + PrintAndLog(""); + PrintAndLog("example: hf list 14a f"); + PrintAndLog("example: hf list iclass"); + PrintAndLog("example: hf list save myCardTrace.trc"); + PrintAndLog("example: hf list 14a l myCardTrace.trc"); + return 0; + } + + + uint8_t *trace; + uint32_t tracepos = 0; + uint32_t traceLen = 0; + + if (loadFromFile) { + #define TRACE_CHUNK_SIZE (1<<16) // 64K to start with. Will be enough for BigBuf and some room for future extensions + FILE *tracefile = NULL; + size_t bytes_read; + trace = malloc(TRACE_CHUNK_SIZE); + if (trace == NULL) { + PrintAndLog("Cannot allocate memory for trace"); + return 2; + } + if ((tracefile = fopen(filename,"rb")) == NULL) { + PrintAndLog("Could not open file %s", filename); + free(trace); + return 0; + } + while (!feof(tracefile)) { + bytes_read = fread(trace+traceLen, 1, TRACE_CHUNK_SIZE, tracefile); + traceLen += bytes_read; + if (!feof(tracefile)) { + uint8_t *p = realloc(trace, traceLen + TRACE_CHUNK_SIZE); + if (p == NULL) { + PrintAndLog("Cannot allocate memory for trace"); + free(trace); + fclose(tracefile); + return 2; + } + trace = p; + } + } + fclose(tracefile); + } else if (PCSCtrace) { + trace = pcsc_get_trace_addr(); + traceLen = pcsc_get_traceLen(); + } else { + trace = malloc(USB_CMD_DATA_SIZE); + // Query for the size of the trace + UsbCommand response; + GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0, &response, -1, false); + traceLen = response.arg[2]; + if (traceLen > USB_CMD_DATA_SIZE) { + uint8_t *p = realloc(trace, traceLen); + if (p == NULL) { + PrintAndLog("Cannot allocate memory for trace"); + free(trace); + return 2; + } + trace = p; + GetFromBigBuf(trace, traceLen, 0, NULL, -1, false); + } + } + + if (saveToFile) { + FILE *tracefile = NULL; + if ((tracefile = fopen(filename,"wb")) == NULL) { + PrintAndLog("Could not create file %s", filename); + return 1; + } + fwrite(trace, 1, traceLen, tracefile); + PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, filename); + fclose(tracefile); + } else { + PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen); + PrintAndLog(""); + PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer"); + PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)"); + PrintAndLog("iClass - Timings are not as accurate"); + PrintAndLog(""); + PrintAndLog(" Start | End | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation |"); + PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|"); + + ClearAuthData(); + while(tracepos < traceLen) + { + tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes); + } + } + + free(trace); + return 0; } +