X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3c5fce2ba7d49f3ebea05eed187a9b5ee8189803..c0e7527dddf79e1d2758eb4dd55a6b0574fe0a9a:/client/emv/cmdemv.c?ds=sidebyside diff --git a/client/emv/cmdemv.c b/client/emv/cmdemv.c index 3c3c1f11..d9a43cb9 100644 --- a/client/emv/cmdemv.c +++ b/client/emv/cmdemv.c @@ -1,5 +1,5 @@ //----------------------------------------------------------------------------- -// Copyright (C) 2017 Merlok +// Copyright (C) 2017, 2018 Merlok // // 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 @@ -8,95 +8,82 @@ // EMV commands //----------------------------------------------------------------------------- +#include +#include "mifare.h" #include "cmdemv.h" +#include "emvjson.h" +#include "emv_pki.h" +#include "test/cryptotest.h" +#include "cliparser/cliparser.h" +#include -int UsageCmdHFEMVSelect(void) { - PrintAndLog("HELP : Executes select applet command:\n"); - PrintAndLog("Usage: hf emv select [-s][-k][-a][-t] \n"); - PrintAndLog(" Options:"); - PrintAndLog(" -s : select card"); - PrintAndLog(" -k : keep field for next command"); - PrintAndLog(" -a : show APDU reqests and responses\n"); - PrintAndLog(" -t : TLV decode results\n"); - PrintAndLog("Samples:"); - PrintAndLog(" hf emv select -s a00000000101 -> select card, select applet"); - PrintAndLog(" hf emv select -s -t a00000000101 -> select card, select applet, show result in TLV"); - return 0; +#define TLV_ADD(tag, value)( tlvdb_change_or_add_node(tlvRoot, tag, sizeof(value) - 1, (const unsigned char *)value) ) +void ParamLoadDefaults(struct tlvdb *tlvRoot) { + //9F02:(Amount, authorized (Numeric)) len:6 + TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); + //9F1A:(Terminal Country Code) len:2 + TLV_ADD(0x9F1A, "ru"); + //5F2A:(Transaction Currency Code) len:2 + // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 + TLV_ADD(0x5F2A, "\x09\x80"); + //9A:(Transaction Date) len:3 + TLV_ADD(0x9A, "\x00\x00\x00"); + //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash + TLV_ADD(0x9C, "\x00"); + // 9F37 Unpredictable Number len:4 + TLV_ADD(0x9F37, "\x01\x02\x03\x04"); + // 9F6A Unpredictable Number (MSD for UDOL) len:4 + TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); + //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 + TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC } -int CmdHFEMVSelect(const char *cmd) { +int CmdEMVSelect(const char *cmd) { uint8_t data[APDU_AID_LEN] = {0}; int datalen = 0; - bool activateField = false; - bool leaveSignalON = false; - bool decodeTLV = false; - - if (strlen(cmd) < 1) { - UsageCmdHFEMVSelect(); - return 0; - } - - SetAPDULogging(false); - - int cmdp = 0; - while(param_getchar(cmd, cmdp) != 0x00) { - char c = param_getchar(cmd, cmdp); - if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) - switch (param_getchar_indx(cmd, 1, cmdp)) { - case 'h': - case 'H': - UsageCmdHFEMVSelect(); - return 0; - case 's': - case 'S': - activateField = true; - break; - case 'k': - case 'K': - leaveSignalON = true; - break; - case 'a': - case 'A': - SetAPDULogging(true); - break; - case 't': - case 'T': - decodeTLV = true; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); - return 1; - } - - if (isxdigit(c)) { - switch(param_gethex_to_eol(cmd, cmdp, data, sizeof(data), &datalen)) { - case 1: - PrintAndLog("Invalid HEX value."); - return 1; - case 2: - PrintAndLog("AID too large."); - return 1; - case 3: - PrintAndLog("Hex must have even number of digits."); - return 1; - } - - // we get all the hex to end of line with spaces - break; - } + CLIParserInit("emv select", + "Executes select applet command", + "Usage:\n\temv select -s a00000000101 -> select card, select applet\n\temv select -st a00000000101 -> select card, select applet, show result in TLV\n"); - cmdp++; - } + void* argtable[] = { + arg_param_begin, + arg_lit0("sS", "select", "activate field and select card"), + arg_lit0("kK", "keep", "keep field for next command"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_strx0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool activateField = arg_get_lit(1); + bool leaveSignalON = arg_get_lit(2); + bool APDULogging = arg_get_lit(3); + bool decodeTLV = arg_get_lit(4); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(5)) + channel = ECC_CONTACT; + CLIGetHexWithReturn(6, data, &datalen); +#else + CLIGetHexWithReturn(5, data, &datalen); +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); // exec uint8_t buf[APDU_RES_LEN] = {0}; size_t len = 0; uint16_t sw = 0; - int res = EMVSelect(activateField, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); + int res = EMVSelect(channel, activateField, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); if (sw) - PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); if (res) return res; @@ -107,75 +94,48 @@ int CmdHFEMVSelect(const char *cmd) { return 0; } -int UsageCmdHFEMVSearch(void) { - PrintAndLog("HELP : Tries to select all applets from applet list:\n"); - PrintAndLog("Usage: hf emv search [-s][-k][-a][-t]\n"); - PrintAndLog(" Options:"); - PrintAndLog(" -s : select card"); - PrintAndLog(" -k : keep field for next command"); - PrintAndLog(" -a : show APDU reqests and responses\n"); - PrintAndLog(" -t : TLV decode results of selected applets\n"); - PrintAndLog("Samples:"); - PrintAndLog(" hf emv search -s -> select card and search"); - PrintAndLog(" hf emv search -s -t -> select card, search and show result in TLV"); - return 0; -} +int CmdEMVSearch(const char *cmd) { -int CmdHFEMVSearch(const char *cmd) { - - bool activateField = false; - bool leaveSignalON = false; - bool decodeTLV = false; - - if (strlen(cmd) < 1) { - UsageCmdHFEMVSearch(); - return 0; - } - - SetAPDULogging(false); - - int cmdp = 0; - while(param_getchar(cmd, cmdp) != 0x00) { - char c = param_getchar(cmd, cmdp); - if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) - switch (param_getchar_indx(cmd, 1, cmdp)) { - case 'h': - case 'H': - UsageCmdHFEMVSearch(); - return 0; - case 's': - case 'S': - activateField = true; - break; - case 'k': - case 'K': - leaveSignalON = true; - break; - case 'a': - case 'A': - SetAPDULogging(true); - break; - case 't': - case 'T': - decodeTLV = true; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); - return 1; - } - cmdp++; - } + CLIParserInit("emv search", + "Tries to select all applets from applet list:\n", + "Usage:\n\temv search -s -> select card and search\n\temv search -st -> select card, search and show result in TLV\n"); + void* argtable[] = { + arg_param_begin, + arg_lit0("sS", "select", "activate field and select card"), + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool activateField = arg_get_lit(1); + bool leaveSignalON = arg_get_lit(2); + bool APDULogging = arg_get_lit(3); + bool decodeTLV = arg_get_lit(4); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(5)) + channel = ECC_CONTACT; +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); + struct tlvdb *t = NULL; const char *al = "Applets list"; t = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); - if (EMVSearch(activateField, leaveSignalON, decodeTLV, t)) { + if (EMVSearch(channel, activateField, leaveSignalON, decodeTLV, t)) { tlvdb_free(t); return 2; } - PrintAndLog("Search completed."); + PrintAndLogEx(SUCCESS, "Search completed."); // print list here if (!decodeTLV) { @@ -187,83 +147,218 @@ int CmdHFEMVSearch(const char *cmd) { return 0; } -int UsageCmdHFEMVPPSE(void) { - PrintAndLog("HELP : Executes PSE/PPSE select command. It returns list of applet on the card:\n"); - PrintAndLog("Usage: hf emv pse [-s][-k][-1][-2][-a][-t]\n"); - PrintAndLog(" Options:"); - PrintAndLog(" -s : select card"); - PrintAndLog(" -k : keep field for next command"); - PrintAndLog(" -1 : ppse (1PAY.SYS.DDF01)"); - PrintAndLog(" -2 : pse (2PAY.SYS.DDF01)"); - PrintAndLog(" -a : show APDU reqests and responses\n"); - PrintAndLog(" -t : TLV decode results\n"); - PrintAndLog("Samples:"); - PrintAndLog(" hf emv pse -s -1 -> select, get pse"); - PrintAndLog(" hf emv pse -s -k -2 -> select, get ppse, keep field"); - PrintAndLog(" hf emv pse -s -t -2 -> select, get ppse, show result in TLV"); +int CmdEMVPPSE(const char *cmd) { + + CLIParserInit("emv pse", + "Executes PSE/PPSE select command. It returns list of applet on the card:\n", + "Usage:\n\temv pse -s1 -> select, get pse\n\temv pse -st2 -> select, get ppse, show result in TLV\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("sS", "select", "activate field and select card"), + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("1", "pse", "pse (1PAY.SYS.DDF01) mode"), + arg_lit0("2", "ppse", "ppse (2PAY.SYS.DDF01) mode (default mode)"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool activateField = arg_get_lit(1); + bool leaveSignalON = arg_get_lit(2); + uint8_t PSENum = 2; + if (arg_get_lit(3)) + PSENum = 1; + if (arg_get_lit(4)) + PSENum = 2; + bool APDULogging = arg_get_lit(5); + bool decodeTLV = arg_get_lit(6); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(7)) + channel = ECC_CONTACT; +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVSelectPSE(channel, activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); + + if (sw) + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + return 0; } -int CmdHFEMVPPSE(const char *cmd) { +int CmdEMVGPO(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("emv gpo", + "Executes Get Processing Options command. It returns data in TLV format (0x77 - format2) or plain format (0x80 - format1).\nNeeds a EMV applet to be selected.", + "Usage:\n\temv gpo -k -> execute GPO\n" + "\temv gpo -t 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n" + "\temv gpo -pmt 9F 37 04 -> load params from file, make PDOL data from PDOL, execute GPO with PDOL, show result in TLV\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for PDOLdata making from PDOL and parameters"), + arg_lit0("mM", "make", "make PDOLdata from PDOL (tag 9F38) and parameters (by default uses default parameters)"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_strx0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); - uint8_t PSENum = 2; - bool activateField = false; - bool leaveSignalON = false; - bool decodeTLV = false; - - if (strlen(cmd) < 1) { - UsageCmdHFEMVPPSE(); - return 0; - } - - SetAPDULogging(false); - - int cmdp = 0; - while(param_getchar(cmd, cmdp) != 0x00) { - char c = param_getchar(cmd, cmdp); - if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) - switch (param_getchar_indx(cmd, 1, cmdp)) { - case 'h': - case 'H': - UsageCmdHFEMVPPSE(); - return 0; - case 's': - case 'S': - activateField = true; - break; - case 'k': - case 'K': - leaveSignalON = true; - break; - case 'a': - case 'A': - SetAPDULogging(true); - break; - case 't': - case 'T': - decodeTLV = true; - break; - case '1': - PSENum = 1; - break; - case '2': - PSENum = 2; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); - return 1; + bool leaveSignalON = arg_get_lit(1); + bool paramsLoadFromFile = arg_get_lit(2); + bool dataMakeFromPDOL = arg_get_lit(3); + bool APDULogging = arg_get_lit(4); + bool decodeTLV = arg_get_lit(5); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(6)) + channel = ECC_CONTACT; + CLIGetHexWithReturn(7, data, &datalen); +#else + CLIGetHexWithReturn(6, data, &datalen); +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); + + // Init TLV tree + const char *alr = "Root terminal TLV tree"; + struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); + + // calc PDOL + struct tlv *pdol_data_tlv = NULL; + struct tlv data_tlv = { + .tag = 0x83, + .len = datalen, + .value = (uint8_t *)data, + }; + if (dataMakeFromPDOL) { + ParamLoadDefaults(tlvRoot); + + if (paramsLoadFromFile) { + PrintAndLogEx(INFO, "Params loading from file..."); + ParamLoadFromJson(tlvRoot); + }; + + pdol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x9f38, datalen, data), tlvRoot, 0x83); + if (!pdol_data_tlv){ + PrintAndLogEx(ERR, "Can't create PDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain PDOL data..."); } - cmdp++; + pdol_data_tlv = &data_tlv; } + + size_t pdol_data_tlv_data_len = 0; + unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); + if (!pdol_data_tlv_data) { + PrintAndLogEx(ERR, "Can't create PDOL data."); + tlvdb_free(tlvRoot); + return 4; + } + PrintAndLogEx(INFO, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVGPO(channel, leaveSignalON, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); + + if (pdol_data_tlv != &data_tlv) + free(pdol_data_tlv); + tlvdb_free(tlvRoot); + + if (sw) + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + return 0; +} + +int CmdEMVReadRecord(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("emv readrec", + "Executes Read Record command. It returns data in TLV format.\nNeeds a bank applet to be selected and sometimes needs GPO to be executed.", + "Usage:\n\temv readrec -k 0101 -> read file SFI=01, SFIrec=01\n\temv readrec -kt 0201-> read file 0201 and show result in TLV\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_strx1(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool leaveSignalON = arg_get_lit(1); + bool APDULogging = arg_get_lit(2); + bool decodeTLV = arg_get_lit(3); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(4)) + channel = ECC_CONTACT; + CLIGetHexWithReturn(5, data, &datalen); +#else + CLIGetHexWithReturn(4, data, &datalen); +#endif + CLIParserFree(); + if (datalen != 2) { + PrintAndLogEx(ERR, "Command needs to have 2 bytes of data"); + return 1; + } + + SetAPDULogging(APDULogging); + // exec uint8_t buf[APDU_RES_LEN] = {0}; size_t len = 0; uint16_t sw = 0; - int res = EMVSelectPSE(activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); + int res = EMVReadRecord(channel, leaveSignalON, data[0], data[1], buf, sizeof(buf), &len, &sw, NULL); if (sw) - PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); if (res) return res; @@ -275,76 +370,403 @@ int CmdHFEMVPPSE(const char *cmd) { return 0; } -int UsageCmdHFEMVExec(void) { - PrintAndLog("HELP : Executes EMV contactless transaction:\n"); - PrintAndLog("Usage: hf emv exec [-s][-a][-t]\n"); - PrintAndLog(" Options:"); - PrintAndLog(" -s : select card"); - PrintAndLog(" -a : show APDU reqests and responses\n"); - PrintAndLog(" -t : TLV decode results\n"); - PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n"); - PrintAndLog("Samples:"); - PrintAndLog(" hf emv pse -s -> select card"); - PrintAndLog(" hf emv pse -s -t -a -> select card, show responses in TLV, show APDU"); +int CmdEMVAC(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("emv genac", + "Generate Application Cryptogram command. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.", + "Usage:\n\temv genac -k 0102 -> generate AC with 2-byte CDOLdata and keep field ON after command\n" + "\temv genac -t 01020304 -> generate AC with 4-byte CDOL data, show result in TLV\n" + "\temv genac -Daac 01020304 -> generate AC with 4-byte CDOL data and terminal decision 'declined'\n" + "\temv genac -pmt 9F 37 04 -> load params from file, make CDOL data from CDOL, generate AC with CDOL, show result in TLV"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("cC", "cda", "executes CDA transaction. Needs to get SDAD in results."), + arg_str0("dD", "decision", "", "Terminal decision. aac - declined, tc - approved, arqc - online authorisation requested"), + arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for CDOLdata making from CDOL and parameters"), + arg_lit0("mM", "make", "make CDOLdata from CDOL (tag 8C and 8D) and parameters (by default uses default parameters)"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_strx1(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, false); + + bool leaveSignalON = arg_get_lit(1); + bool trTypeCDA = arg_get_lit(2); + uint8_t termDecision = 0xff; + if (arg_get_str_len(3)) { + if (!strncmp(arg_get_str(3)->sval[0], "aac", 4)) + termDecision = EMVAC_AAC; + if (!strncmp(arg_get_str(3)->sval[0], "tc", 4)) + termDecision = EMVAC_TC; + if (!strncmp(arg_get_str(3)->sval[0], "arqc", 4)) + termDecision = EMVAC_ARQC; + + if (termDecision == 0xff) { + PrintAndLog("ERROR: can't find terminal decision '%s'", arg_get_str(3)->sval[0]); + return 1; + } + } else { + termDecision = EMVAC_TC; + } + if (trTypeCDA) + termDecision = termDecision | EMVAC_CDAREQ; + bool paramsLoadFromFile = arg_get_lit(4); + bool dataMakeFromCDOL = arg_get_lit(5); + bool APDULogging = arg_get_lit(6); + bool decodeTLV = arg_get_lit(7); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(8)) + channel = ECC_CONTACT; + CLIGetHexWithReturn(9, data, &datalen); +#else + CLIGetHexWithReturn(8, data, &datalen); +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); + + // Init TLV tree + const char *alr = "Root terminal TLV tree"; + struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); + + // calc CDOL + struct tlv *cdol_data_tlv = NULL; + struct tlv data_tlv = { + .tag = 0x01, + .len = datalen, + .value = (uint8_t *)data, + }; + + if (dataMakeFromCDOL) { + ParamLoadDefaults(tlvRoot); + + if (paramsLoadFromFile) { + PrintAndLogEx(INFO, "Params loading from file..."); + ParamLoadFromJson(tlvRoot); + }; + + cdol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x8c, datalen, data), tlvRoot, 0x01); // 0x01 - dummy tag + if (!cdol_data_tlv){ + PrintAndLogEx(ERR, "Can't create CDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain CDOL data..."); + } + cdol_data_tlv = &data_tlv; + } + + PrintAndLogEx(INFO, "CDOL data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVAC(channel, leaveSignalON, termDecision, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); + + if (cdol_data_tlv != &data_tlv) + free(cdol_data_tlv); + tlvdb_free(tlvRoot); + + if (sw) + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + return 0; +} + +int CmdEMVGenerateChallenge(const char *cmd) { + + CLIParserInit("emv challenge", + "Executes Generate Challenge command. It returns 4 or 8-byte random number from card.\nNeeds a EMV applet to be selected and GPO to be executed.", + "Usage:\n\temv challenge -> get challenge\n\temv challenge -k -> get challenge, keep fileld ON\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool leaveSignalON = arg_get_lit(1); + bool APDULogging = arg_get_lit(2); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(3)) + channel = ECC_CONTACT; +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVGenerateChallenge(channel, leaveSignalON, buf, sizeof(buf), &len, &sw, NULL); + + if (sw) + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + PrintAndLogEx(SUCCESS, "Challenge: %s", sprint_hex(buf, len)); + + if (len != 4 && len != 8) + PrintAndLogEx(WARNING, "Length of challenge must be 4 or 8, but it %d", len); + return 0; } -#define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) ) +int CmdEMVInternalAuthenticate(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("emv intauth", + "Generate Internal Authenticate command. Usually needs 4-byte random number. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.", + "Usage:\n\temv intauth -k 01020304 -> execute Internal Authenticate with 4-byte DDOLdata and keep field ON after command\n" + "\temv intauth -t 01020304 -> execute Internal Authenticate with 4-byte DDOL data, show result in TLV\n" + "\temv intauth -pmt 9F 37 04 -> load params from file, make DDOL data from DDOL, Internal Authenticate with DDOL, show result in TLV"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("kK", "keep", "keep field ON for next command"), + arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for DDOLdata making from DDOL and parameters"), + arg_lit0("mM", "make", "make DDOLdata from DDOL (tag 9F49) and parameters (by default uses default parameters)"), + arg_lit0("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_strx1(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, false); + + bool leaveSignalON = arg_get_lit(1); + bool paramsLoadFromFile = arg_get_lit(2); + bool dataMakeFromDDOL = arg_get_lit(3); + bool APDULogging = arg_get_lit(4); + bool decodeTLV = arg_get_lit(5); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(6)) + channel = ECC_CONTACT; + CLIGetHexWithReturn(7, data, &datalen); +#else + CLIGetHexWithReturn(6, data, &datalen); +#endif + CLIParserFree(); + + SetAPDULogging(APDULogging); -int CmdHFEMVExec(const char *cmd) { - bool activateField = false; - bool showAPDU = false; - bool decodeTLV = false; - bool forceSearch = false; + // Init TLV tree + const char *alr = "Root terminal TLV tree"; + struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); + + // calc DDOL + struct tlv *ddol_data_tlv = NULL; + struct tlv data_tlv = { + .tag = 0x01, + .len = datalen, + .value = (uint8_t *)data, + }; + + if (dataMakeFromDDOL) { + ParamLoadDefaults(tlvRoot); + if (paramsLoadFromFile) { + PrintAndLogEx(INFO, "Params loading from file..."); + ParamLoadFromJson(tlvRoot); + }; + + ddol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x9f49, datalen, data), tlvRoot, 0x01); // 0x01 - dummy tag + if (!ddol_data_tlv){ + PrintAndLogEx(ERR, "Can't create DDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain DDOL data..."); + } + ddol_data_tlv = &data_tlv; + } + + PrintAndLogEx(INFO, "DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len)); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVInternalAuthenticate(channel, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); + + if (ddol_data_tlv != &data_tlv) + free(ddol_data_tlv); + tlvdb_free(tlvRoot); + + if (sw) + PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + return 0; +} + +#define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} + +void InitTransactionParameters(struct tlvdb *tlvRoot, bool paramLoadJSON, enum TransactionType TrType, bool GenACGPO) { + + ParamLoadDefaults(tlvRoot); + + if (paramLoadJSON) { + PrintAndLog("* * Transaction parameters loading from JSON..."); + ParamLoadFromJson(tlvRoot); + } + + //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 + char *qVSDC = "\x26\x00\x00\x00"; + if (GenACGPO) { + qVSDC = "\x26\x80\x00\x00"; + } + switch(TrType) { + case TT_MSD: + TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD + break; + // not standard for contactless. just for test. + case TT_VSDC: + TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC + break; + case TT_QVSDCMCHIP: + TLV_ADD(0x9F66, qVSDC); // qVSDC + break; + case TT_CDA: + TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) + break; + default: + break; + } +} + +void ProcessGPOResponseFormat1(struct tlvdb *tlvRoot, uint8_t *buf, size_t len, bool decodeTLV) { + if (buf[0] == 0x80) { + if (decodeTLV){ + PrintAndLog("GPO response format1:"); + TLVPrintFromBuffer(buf, len); + } + + if (len < 4 || (len - 4) % 4) { + PrintAndLogEx(ERR, "GPO response format1 parsing error. length=%d", len); + } else { + // AIP + struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); + tlvdb_add(tlvRoot, f1AIP); + if (decodeTLV){ + PrintAndLogEx(INFO, "\n* * Decode response format 1 (0x80) AIP and AFL:"); + TLVPrintFromTLV(f1AIP); + } + + // AFL + struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); + tlvdb_add(tlvRoot, f1AFL); + if (decodeTLV) + TLVPrintFromTLV(f1AFL); + } + } else { + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + } +} + +int CmdEMVExec(const char *cmd) { uint8_t buf[APDU_RES_LEN] = {0}; size_t len = 0; uint16_t sw = 0; uint8_t AID[APDU_AID_LEN] = {0}; size_t AIDlen = 0; + uint8_t ODAiList[4096]; + size_t ODAiListLen = 0; int res; - if (strlen(cmd) < 1) { - UsageCmdHFEMVExec(); - return 0; - } - - int cmdp = 0; - while(param_getchar(cmd, cmdp) != 0x00) { - char c = param_getchar(cmd, cmdp); - if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) - switch (param_getchar_indx(cmd, 1, cmdp)) { - case 'h': - case 'H': - UsageCmdHFEMVPPSE(); - return 0; - case 's': - case 'S': - activateField = true; - break; - case 'a': - case 'A': - showAPDU = true; - break; - case 't': - case 'T': - decodeTLV = true; - break; - case 'f': - case 'F': - forceSearch = true; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); - return 1; - } - cmdp++; - } + struct tlvdb *tlvSelect = NULL; + struct tlvdb *tlvRoot = NULL; + struct tlv *pdol_data_tlv = NULL; + + CLIParserInit("emv exec", + "Executes EMV contactless transaction", + "Usage:\n\temv exec -sat -> select card, execute MSD transaction, show APDU and TLV\n" + "\temv exec -satc -> select card, execute CDA transaction, show APDU and TLV\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("sS", "select", "activate field and select card."), + arg_lit0("aA", "apdu", "show APDU reqests and responses."), + arg_lit0("tT", "tlv", "TLV decode results."), + arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."), + arg_lit0("fF", "forceaid", "Force search AID. Search AID instead of execute PPSE."), + arg_rem("By default:", "Transaction type - MSD"), + arg_lit0("vV", "qvsdc", "Transaction type - qVSDC or M/Chip."), + arg_lit0("cC", "qvsdccda", "Transaction type - qVSDC or M/Chip plus CDA (SDAD generation)."), + arg_lit0("xX", "vsdc", "Transaction type - VSDC. For test only. Not a standart behavior."), + arg_lit0("gG", "acgpo", "VISA. generate AC from GPO."), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool activateField = arg_get_lit(1); + bool showAPDU = arg_get_lit(2); + bool decodeTLV = arg_get_lit(3); + bool paramLoadJSON = arg_get_lit(4); + bool forceSearch = arg_get_lit(5); + + enum TransactionType TrType = TT_MSD; + if (arg_get_lit(7)) + TrType = TT_QVSDCMCHIP; + if (arg_get_lit(8)) + TrType = TT_CDA; + if (arg_get_lit(9)) + TrType = TT_VSDC; + bool GenACGPO = arg_get_lit(10); + EMVCommandChannel channel = ECC_CONTACTLESS; +#ifdef WITH_SMARTCARD + if (arg_get_lit(11)) + channel = ECC_CONTACT; +#endif + CLIParserFree(); + + SetAPDULogging(showAPDU); // init applets list tree - struct tlvdb *tlvSelect = NULL; const char *al = "Applets list"; tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); @@ -352,12 +774,12 @@ int CmdHFEMVExec(const char *cmd) { // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html if (!forceSearch) { // PPSE - PrintAndLog("\n* PPSE."); + PrintAndLogEx(NORMAL, "\n* PPSE."); SetAPDULogging(showAPDU); - res = EMVSearchPSE(activateField, true, decodeTLV, tlvSelect); + res = EMVSearchPSE(channel, activateField, true, decodeTLV, tlvSelect); // check PPSE and select application id - if (!res) { + if (!res) { TLVPrintAIDlistFromSelectTLV(tlvSelect); EMVSelectApplication(tlvSelect, AID, &AIDlen); } @@ -365,11 +787,10 @@ int CmdHFEMVExec(const char *cmd) { // Search if (!AIDlen) { - PrintAndLog("\n* Search AID in list."); + PrintAndLogEx(NORMAL, "\n* Search AID in list."); SetAPDULogging(false); - if (EMVSearch(activateField, true, decodeTLV, tlvSelect)) { - tlvdb_free(tlvSelect); - return 2; + if (EMVSearch(channel, activateField, true, decodeTLV, tlvSelect)) { + dreturn(2); } // check search and select application id @@ -378,105 +799,87 @@ int CmdHFEMVExec(const char *cmd) { } // Init TLV tree - struct tlvdb *tlvRoot = NULL; const char *alr = "Root terminal TLV tree"; tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); // check if we found EMV application on card if (!AIDlen) { - PrintAndLog("Can't select AID. EMV AID not found"); - return 2; + PrintAndLogEx(WARNING, "Can't select AID. EMV AID not found"); + dreturn(2); } // Select - PrintAndLog("\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); + PrintAndLogEx(NORMAL, "\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); SetAPDULogging(showAPDU); - res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); + res = EMVSelect(channel, false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); - if (res) { - PrintAndLog("Can't select AID (%d). Exit...", res); - return 3; + if (res) { + PrintAndLogEx(WARNING, "Can't select AID (%d). Exit...", res); + dreturn(3); } if (decodeTLV) TLVPrintFromBuffer(buf, len); - PrintAndLog("* Selected."); + PrintAndLogEx(INFO, "* Selected."); -PrintAndLog("-----BREAK."); -return 0; - PrintAndLog("\n* Init transaction parameters."); - - //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 - TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // E6 - //9F02:(Amount, Authorised (Numeric)) len:6 - TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); - //9F1A:(Terminal Country Code) len:2 - TLV_ADD(0x9F1A, "ru"); - //5F2A:(Transaction Currency Code) len:2 - // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 - TLV_ADD(0x5F2A, "\x09\x80"); - //9A:(Transaction Date) len:3 - TLV_ADD(0x9A, "\x00\x00\x00"); - //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash - TLV_ADD(0x9C, "\x00"); - // 9F37 Unpredictable Number len:4 - TLV_ADD(0x9F37, "\x01\x02\x03\x04"); - - TLVPrintFromTLV(tlvRoot); + PrintAndLogEx(INFO, "\n* Init transaction parameters."); + InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO); + TLVPrintFromTLV(tlvRoot); // TODO delete!!! - PrintAndLog("\n* Calc PDOL."); - struct tlv *pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); + PrintAndLogEx(NORMAL, "\n* Calc PDOL."); + pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); if (!pdol_data_tlv){ - PrintAndLog("ERROR: can't create PDOL TLV."); - return 4; + PrintAndLogEx(WARNING, "Error: can't create PDOL TLV."); + dreturn(4); } size_t pdol_data_tlv_data_len; unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); if (!pdol_data_tlv_data) { - PrintAndLog("ERROR: can't create PDOL data."); - return 4; + PrintAndLogEx(WARNING, "Error: can't create PDOL data."); + dreturn(4); } - PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); + PrintAndLogEx(NORMAL, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); -//PrintAndLog("-----BREAK."); -//return 0; - PrintAndLog("\n* GPO."); - res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); + PrintAndLogEx(NORMAL, "\n* GPO."); + res = EMVGPO(channel, true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); - free(pdol_data_tlv); + free(pdol_data_tlv_data); + //free(pdol_data_tlv); --- free on exit. - if (res) { - PrintAndLog("GPO error(%d): %4x. Exit...", res, sw); - return 5; + if (res) { + PrintAndLogEx(NORMAL, "GPO error(%d): %4x. Exit...", res, sw); + dreturn(5); } // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] - if (buf[0] == 0x80) { - - - - if (decodeTLV){ - PrintAndLog("GPO response format1:"); - TLVPrintFromBuffer(buf, len); + ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV); + + // extract PAN from track2 + { + const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); + if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { + struct tlvdb *pan = GetPANFromTrack2(track2); + if (pan) { + tlvdb_add(tlvRoot, pan); + + const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); + PrintAndLogEx(NORMAL, "\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); + } else { + PrintAndLogEx(NORMAL, "\n* * WARNING: Can't extract PAN from track2."); + } } - } else { - - - - if (decodeTLV) - TLVPrintFromBuffer(buf, len); } - PrintAndLog("\n* Read records from AFL."); + PrintAndLogEx(NORMAL, "\n* Read records from AFL."); const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); if (!AFL || !AFL->len) { - PrintAndLog("WARNING: AFL not found."); + PrintAndLogEx(WARNING, "AFL not found."); } while(AFL && AFL->len) { if (AFL->len % 4) { - PrintAndLog("ERROR: Wrong AFL length: %d", AFL->len); + PrintAndLogEx(WARNING, "Error: Wrong AFL length: %d", AFL->len); break; } @@ -486,62 +889,637 @@ return 0; uint8_t SFIend = AFL->value[i * 4 + 2]; uint8_t SFIoffline = AFL->value[i * 4 + 3]; - PrintAndLog("* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); + PrintAndLogEx(NORMAL, "* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { - PrintAndLog("SFI ERROR! Skipped..."); + PrintAndLogEx(NORMAL, "SFI ERROR! Skipped..."); continue; } for(int n = SFIstart; n <= SFIend; n++) { - PrintAndLog("* * * SFI[%02x] %d", SFI, n); + PrintAndLogEx(NORMAL, "* * * SFI[%02x] %d", SFI, n); - res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); + res = EMVReadRecord(channel, true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); if (res) { - PrintAndLog("ERROR SFI[%02x]. APDU error %4x", SFI, sw); + PrintAndLogEx(WARNING, "Error SFI[%02x]. APDU error %4x", SFI, sw); continue; } if (decodeTLV) { TLVPrintFromBuffer(buf, len); - PrintAndLog(""); + PrintAndLogEx(NORMAL, ""); } + // Build Input list for Offline Data Authentication + // EMV 4.3 book3 10.3, page 96 if (SFIoffline) { - // here will be offline records storing... - // dont foget: if (sfi < 11) + if (SFI < 11) { + const unsigned char *abuf = buf; + size_t elmlen = len; + struct tlv e; + if (tlv_parse_tl(&abuf, &elmlen, &e)) { + memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); + ODAiListLen += elmlen; + } else { + PrintAndLogEx(WARNING, "Error SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); + } + } else { + memcpy(&ODAiList[ODAiListLen], buf, len); + ODAiListLen += len; + } } } } break; - } + } - // additional contacless EMV commands (fDDA, CDA, external authenticate) + // copy Input list for Offline Data Authentication + if (ODAiListLen) { + struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag + tlvdb_add(tlvRoot, oda); + PrintAndLogEx(NORMAL, "* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); + } + // get AIP + uint16_t AIP = 0; + const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); + if (AIPtlv) { + AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; + PrintAndLogEx(NORMAL, "* * AIP=%04x", AIP); + } else { + PrintAndLogEx(ERR, "Can't found AIP."); + } + + // SDA + if (AIP & 0x0040) { + PrintAndLogEx(NORMAL, "\n* SDA"); + trSDA(tlvRoot); + } + + // DDA + if (AIP & 0x0020) { + PrintAndLogEx(NORMAL, "\n* DDA"); + trDDA(channel, decodeTLV, tlvRoot); + } - // DropField + // transaction check + + // qVSDC + if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ + // 9F26: Application Cryptogram + const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); + if (AC) { + PrintAndLogEx(NORMAL, "\n--> qVSDC transaction."); + PrintAndLogEx(NORMAL, "* AC path"); + + // 9F36: Application Transaction Counter (ATC) + const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); + if (ATC) { + + // 9F10: Issuer Application Data - optional + const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); + + // print AC data + PrintAndLogEx(NORMAL, "ATC: %s", sprint_hex(ATC->value, ATC->len)); + PrintAndLogEx(NORMAL, "AC: %s", sprint_hex(AC->value, AC->len)); + if (IAD){ + PrintAndLogEx(NORMAL, "IAD: %s", sprint_hex(IAD->value, IAD->len)); + + if (IAD->len >= IAD->value[0] + 1) { + PrintAndLogEx(NORMAL, "\tKey index: 0x%02x", IAD->value[1]); + PrintAndLogEx(NORMAL, "\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); + PrintAndLogEx(NORMAL, "\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); + struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); + TLVPrintFromTLVLev(cvr, 1); + } + } else { + PrintAndLogEx(WARNING, "IAD not found."); + } + + } else { + PrintAndLogEx(ERR, "AC: Application Transaction Counter (ATC) not found."); + } + } + } + + // Mastercard M/CHIP + if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ + const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); + if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag + PrintAndLogEx(NORMAL, "\n--> Mastercard M/Chip transaction."); + + PrintAndLogEx(NORMAL, "* * Generate challenge"); + res = EMVGenerateChallenge(channel, true, buf, sizeof(buf), &len, &sw, tlvRoot); + if (res) { + PrintAndLogEx(WARNING, "GetChallenge. APDU error %4x", sw); + dreturn(6); + } + if (len < 4) { + PrintAndLogEx(WARNING, "GetChallenge. Wrong challenge length %d", len); + dreturn(6); + } + + // ICC Dynamic Number + struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); + tlvdb_add(tlvRoot, ICCDynN); + if (decodeTLV){ + PrintAndLogEx(NORMAL, "\n* * ICC Dynamic Number:"); + TLVPrintFromTLV(ICCDynN); + } + + PrintAndLogEx(NORMAL, "* * Calc CDOL1"); + struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag + if (!cdol_data_tlv){ + PrintAndLogEx(WARNING, "Error: can't create CDOL1 TLV."); + dreturn(6); + } + PrintAndLogEx(NORMAL, "CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); + + PrintAndLogEx(NORMAL, "* * AC1"); + // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD + res = EMVAC(channel, true, (TrType == TT_CDA) ? EMVAC_TC + EMVAC_CDAREQ : EMVAC_TC, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); + + if (res) { + PrintAndLogEx(NORMAL, "AC1 error(%d): %4x. Exit...", res, sw); + dreturn(7); + } + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + // CDA + PrintAndLogEx(NORMAL, "\n* CDA:"); + struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); + res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); + if (res) { + PrintAndLogEx(NORMAL, "CDA error (%d)", res); + } + free(ac_tlv); + free(cdol_data_tlv); + + PrintAndLogEx(NORMAL, "\n* M/Chip transaction result:"); + // 9F27: Cryptogram Information Data (CID) + const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); + if (CID) { + emv_tag_dump(CID, stdout, 0); + PrintAndLogEx(NORMAL, "------------------------------"); + if (CID->len > 0) { + switch(CID->value[0] & EMVAC_AC_MASK){ + case EMVAC_AAC: + PrintAndLogEx(NORMAL, "Transaction DECLINED."); + break; + case EMVAC_TC: + PrintAndLogEx(NORMAL, "Transaction approved OFFLINE."); + break; + case EMVAC_ARQC: + PrintAndLogEx(NORMAL, "Transaction approved ONLINE."); + break; + default: + PrintAndLogEx(WARNING, "Error: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); + break; + } + } else { + PrintAndLogEx(WARNING, "Wrong CID length %d", CID->len); + } + } else { + PrintAndLogEx(WARNING, "CID(9F27) not found."); + } + + } + } + + // MSD + if (AIP & 0x8000 && TrType == TT_MSD) { + PrintAndLogEx(NORMAL, "\n--> MSD transaction."); + + PrintAndLogEx(NORMAL, "* MSD dCVV path. Check dCVV"); + + const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); + if (track2) { + PrintAndLogEx(NORMAL, "Track2: %s", sprint_hex(track2->value, track2->len)); + + struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); + PrintAndLogEx(NORMAL, "dCVV raw data:"); + TLVPrintFromTLV(dCVV); + + if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { + PrintAndLogEx(NORMAL, "\n* Mastercard calculate UDOL"); + + // UDOL (9F69) + const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); + // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes + const struct tlv defUDOL = { + .tag = 0x01, + .len = 3, + .value = (uint8_t *)"\x9f\x6a\x04", + }; + if (!UDOL) + PrintAndLogEx(NORMAL, "Use default UDOL."); + + struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag + if (!udol_data_tlv){ + PrintAndLogEx(WARNING, "can't create UDOL TLV."); + dreturn(8); + } + + PrintAndLogEx(NORMAL, "UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); + + PrintAndLogEx(NORMAL, "\n* Mastercard compute cryptographic checksum(UDOL)"); + + res = MSCComputeCryptoChecksum(channel, true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); + if (res) { + PrintAndLogEx(WARNING, "Compute Crypto Checksum. APDU error %4x", sw); + free(udol_data_tlv); + dreturn(9); + } + + // Mastercard compute cryptographic checksum result + TLVPrintFromBuffer(buf, len); + PrintAndLogEx(NORMAL, ""); + + free(udol_data_tlv); + + } + } else { + PrintAndLogEx(WARNING, "MSD: Track2 data not found."); + } + } + DropField(); // Destroy TLV's + free(pdol_data_tlv); tlvdb_free(tlvSelect); tlvdb_free(tlvRoot); - PrintAndLog("\n* Transaction completed."); + PrintAndLogEx(NORMAL, "\n* Transaction completed."); + return 0; +} + +int CmdEMVScan(const char *cmd) { + uint8_t AID[APDU_AID_LEN] = {0}; + size_t AIDlen = 0; + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res; + json_t *root; + json_error_t error; + + CLIParserInit("emv scan", + "Scan EMV card and save it contents to a file.", + "It executes EMV contactless transaction and saves result to a file which can be used for emulation\n" + "Usage:\n\temv scan -at -> scan MSD transaction mode and show APDU and TLV\n" + "\temv scan -c -> scan CDA transaction mode\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("aA", "apdu", "show APDU reqests and responses."), + arg_lit0("tT", "tlv", "TLV decode results."), + arg_lit0("eE", "extract", "Extract TLV elements and fill Application Data"), + arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."), + arg_rem("By default:", "Transaction type - MSD"), + arg_lit0("vV", "qvsdc", "Transaction type - qVSDC or M/Chip."), + arg_lit0("cC", "qvsdccda", "Transaction type - qVSDC or M/Chip plus CDA (SDAD generation)."), + arg_lit0("xX", "vsdc", "Transaction type - VSDC. For test only. Not a standart behavior."), + arg_lit0("gG", "acgpo", "VISA. generate AC from GPO."), + arg_lit0("mM", "merge", "Merge output file with card's data. (warning: the file may be corrupted!)"), +#ifdef WITH_SMARTCARD + arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), +#endif + arg_str1(NULL, NULL, "output.json", "JSON output file name"), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool showAPDU = arg_get_lit(1); + bool decodeTLV = arg_get_lit(2); + bool extractTLVElements = arg_get_lit(3); + bool paramLoadJSON = arg_get_lit(4); + + enum TransactionType TrType = TT_MSD; + if (arg_get_lit(6)) + TrType = TT_QVSDCMCHIP; + if (arg_get_lit(7)) + TrType = TT_CDA; + if (arg_get_lit(8)) + TrType = TT_VSDC; + + bool GenACGPO = arg_get_lit(9); + bool MergeJSON = arg_get_lit(10); + EMVCommandChannel channel = ECC_CONTACTLESS; + uint8_t relfname[250] = {0}; + char *crelfname = (char *)relfname; + int relfnamelen = 0; +#ifdef WITH_SMARTCARD + if (arg_get_lit(11)) + channel = ECC_CONTACT; + CLIGetStrWithReturn(12, relfname, &relfnamelen); +#else + CLIGetStrWithReturn(11, relfname, &relfnamelen); +#endif + CLIParserFree(); + + SetAPDULogging(showAPDU); + + // TODO + if (channel == ECC_CONTACT) { + PrintAndLogEx(ERR, "Do not use contact interface. Exit."); + return 1; + } + + // current path + file name + if (!strstr(crelfname, ".json")) + strcat(crelfname, ".json"); + char fname[strlen(get_my_executable_directory()) + strlen(crelfname) + 1]; + strcpy(fname, get_my_executable_directory()); + strcat(fname, crelfname); + + if (MergeJSON) { + root = json_load_file(fname, 0, &error); + if (!root) { + PrintAndLogEx(ERR, "json error on line %d: %s", error.line, error.text); + return 1; + } + + if (!json_is_object(root)) { + PrintAndLogEx(ERR, "Invalid json format. root must be an object."); + return 1; + } + } else { + root = json_object(); + } + + // drop field at start + DropField(); + + // iso 14443 select + PrintAndLogEx(NORMAL, "--> GET UID, ATS."); + + iso14a_card_select_t card; + if (Hf14443_4aGetCardData(&card)) { + return 2; + } + + JsonSaveStr(root, "$.File.Created", "proxmark3 `emv scan`"); + + JsonSaveStr(root, "$.Card.Communication", "iso14443-4a"); + JsonSaveBufAsHex(root, "$.Card.UID", (uint8_t *)&card.uid, card.uidlen); + JsonSaveHex(root, "$.Card.ATQA", card.atqa[0] + (card.atqa[1] << 2), 2); + JsonSaveHex(root, "$.Card.SAK", card.sak, 0); + JsonSaveBufAsHex(root, "$.Card.ATS", (uint8_t *)card.ats, card.ats_len); + + // init applets list tree + const char *al = "Applets list"; + struct tlvdb *tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); + + // EMV PPSE + PrintAndLogEx(NORMAL, "--> PPSE."); + res = EMVSelectPSE(channel, true, true, 2, buf, sizeof(buf), &len, &sw); + + if (!res && sw == 0x9000){ + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + JsonSaveBufAsHex(root, "$.PPSE.AID", (uint8_t *)"2PAY.SYS.DDF01", 14); + + struct tlvdb *fci = tlvdb_parse_multi(buf, len); + if (extractTLVElements) + JsonSaveTLVTree(root, root, "$.PPSE.FCITemplate", fci); + else + JsonSaveTLVTreeElm(root, "$.PPSE.FCITemplate", fci, true, true, false); + JsonSaveTLVValue(root, "$.Application.KernelID", tlvdb_find_full(fci, 0x9f2a)); + tlvdb_free(fci); + } + + res = EMVSearchPSE(channel, false, true, decodeTLV, tlvSelect); + + // check PPSE and select application id + if (!res) { + TLVPrintAIDlistFromSelectTLV(tlvSelect); + } else { + // EMV SEARCH with AID list + SetAPDULogging(false); + PrintAndLogEx(NORMAL, "--> AID search."); + if (EMVSearch(channel, false, true, decodeTLV, tlvSelect)) { + PrintAndLogEx(ERR, "Can't found any of EMV AID. Exit..."); + tlvdb_free(tlvSelect); + DropField(); + return 3; + } + + // check search and select application id + TLVPrintAIDlistFromSelectTLV(tlvSelect); + } + + // EMV SELECT application + SetAPDULogging(showAPDU); + EMVSelectApplication(tlvSelect, AID, &AIDlen); + + tlvdb_free(tlvSelect); + + if (!AIDlen) { + PrintAndLogEx(INFO, "Can't select AID. EMV AID not found. Exit..."); + DropField(); + return 4; + } + + JsonSaveBufAsHex(root, "$.Application.AID", AID, AIDlen); + + // Init TLV tree + const char *alr = "Root terminal TLV tree"; + struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); + + // EMV SELECT applet + + PrintAndLogEx(NORMAL, "\n-->Selecting AID:%s.", sprint_hex_inrow(AID, AIDlen)); + SetAPDULogging(showAPDU); + res = EMVSelect(channel, false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); + + if (res) { + PrintAndLogEx(ERR, "Can't select AID (%d). Exit...", res); + tlvdb_free(tlvRoot); + DropField(); + return 5; + } + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + // save mode + if (tlvdb_get(tlvRoot, 0x9f38, NULL)) { + JsonSaveStr(root, "$.Application.Mode", TransactionTypeStr[TrType]); + } + + struct tlvdb *fci = tlvdb_parse_multi(buf, len); + if (extractTLVElements) + JsonSaveTLVTree(root, root, "$.Application.FCITemplate", fci); + else + JsonSaveTLVTreeElm(root, "$.Application.FCITemplate", fci, true, true, false); + tlvdb_free(fci); + + // create transaction parameters + PrintAndLogEx(NORMAL, "-->Init transaction parameters."); + InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO); + + PrintAndLogEx(NORMAL, "-->Calc PDOL."); + struct tlv *pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); + if (!pdol_data_tlv){ + PrintAndLogEx(ERR, "Can't create PDOL TLV."); + tlvdb_free(tlvRoot); + DropField(); + return 6; + } + + size_t pdol_data_tlv_data_len; + unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); + if (!pdol_data_tlv_data) { + PrintAndLogEx(ERR, "Can't create PDOL data."); + tlvdb_free(tlvRoot); + DropField(); + return 6; + } + PrintAndLogEx(INFO, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); + + PrintAndLogEx(INFO, "-->GPO."); + res = EMVGPO(channel, true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); + + free(pdol_data_tlv_data); + free(pdol_data_tlv); + + if (res) { + PrintAndLogEx(ERR, "GPO error(%d): %4x. Exit...", res, sw); + tlvdb_free(tlvRoot); + DropField(); + return 7; + } + ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV); + + struct tlvdb *gpofci = tlvdb_parse_multi(buf, len); + if (extractTLVElements) + JsonSaveTLVTree(root, root, "$.Application.GPO", gpofci); + else + JsonSaveTLVTreeElm(root, "$.Application.GPO", gpofci, true, true, false); + + JsonSaveTLVValue(root, "$.ApplicationData.AIP", tlvdb_find_full(gpofci, 0x82)); + JsonSaveTLVValue(root, "$.ApplicationData.AFL", tlvdb_find_full(gpofci, 0x94)); + + tlvdb_free(gpofci); + + PrintAndLogEx(INFO, "-->Read records from AFL."); + const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); + + while(AFL && AFL->len) { + if (AFL->len % 4) { + PrintAndLogEx(ERR, "Wrong AFL length: %d", AFL->len); + break; + } + + json_t *sfijson = json_path_get(root, "$.Application.Records"); + if (!sfijson) { + json_t *app = json_path_get(root, "$.Application"); + json_object_set_new(app, "Records", json_array()); + + sfijson = json_path_get(root, "$.Application.Records"); + } + if (!json_is_array(sfijson)) { + PrintAndLogEx(ERR, "Internal logic error. `$.Application.Records` is not an array."); + break; + } + for (int i = 0; i < AFL->len / 4; i++) { + uint8_t SFI = AFL->value[i * 4 + 0] >> 3; + uint8_t SFIstart = AFL->value[i * 4 + 1]; + uint8_t SFIend = AFL->value[i * 4 + 2]; + uint8_t SFIoffline = AFL->value[i * 4 + 3]; + + PrintAndLogEx(INFO, "--->SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); + if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { + PrintAndLogEx(ERR, "SFI ERROR! Skipped..."); + continue; + } + + for(int n = SFIstart; n <= SFIend; n++) { + PrintAndLogEx(INFO, "---->SFI[%02x] %d", SFI, n); + + res = EMVReadRecord(channel, true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); + if (res) { + PrintAndLogEx(ERR, "SFI[%02x]. APDU error %4x", SFI, sw); + continue; + } + + if (decodeTLV) { + TLVPrintFromBuffer(buf, len); + PrintAndLogEx(NORMAL, ""); + } + + json_t *jsonelm = json_object(); + json_array_append_new(sfijson, jsonelm); + + JsonSaveHex(jsonelm, "SFI", SFI, 1); + JsonSaveHex(jsonelm, "RecordNum", n, 1); + JsonSaveHex(jsonelm, "Offline", SFIoffline, 1); + + struct tlvdb *rsfi = tlvdb_parse_multi(buf, len); + if (extractTLVElements) + JsonSaveTLVTree(root, jsonelm, "$.Data", rsfi); + else + JsonSaveTLVTreeElm(jsonelm, "$.Data", rsfi, true, true, false); + tlvdb_free(rsfi); + } + } + + break; + } + + // getting certificates + if (tlvdb_get(tlvRoot, 0x90, NULL)) { + PrintAndLogEx(INFO, "-->Recovering certificates."); + PKISetStrictExecution(false); + RecoveryCertificates(tlvRoot, root); + PKISetStrictExecution(true); + } + + // free tlv object + tlvdb_free(tlvRoot); + + // DropField + DropField(); + + res = json_dump_file(root, fname, JSON_INDENT(2)); + if (res) { + PrintAndLogEx(ERR, "Can't save the file: %s", fname); + return 200; + } + PrintAndLogEx(SUCCESS, "File `%s` saved.", fname); + + // free json object + json_decref(root); return 0; } +int CmdEMVTest(const char *cmd) { + return ExecuteCryptoTests(true); +} + int CmdHelp(const char *Cmd); static command_t CommandTable[] = { - {"help", CmdHelp, 1, "This help"}, - {"exec", CmdHFEMVExec, 0, "Executes EMV contactless transaction."}, - {"pse", CmdHFEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, - {"search", CmdHFEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, - {"select", CmdHFEMVSelect, 0, "Select applet."}, - {NULL, NULL, 0, NULL} + {"help", CmdHelp, 1, "This help"}, + {"exec", CmdEMVExec, 0, "Executes EMV contactless transaction."}, + {"pse", CmdEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, + {"search", CmdEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, + {"select", CmdEMVSelect, 0, "Select applet."}, + {"gpo", CmdEMVGPO, 0, "Execute GetProcessingOptions."}, + {"readrec", CmdEMVReadRecord, 0, "Read files from card."}, + {"genac", CmdEMVAC, 0, "Generate ApplicationCryptogram."}, + {"challenge", CmdEMVGenerateChallenge, 0, "Generate challenge."}, + {"intauth", CmdEMVInternalAuthenticate, 0, "Internal authentication."}, + {"scan", CmdEMVScan, 0, "Scan EMV card and save it contents to json file for emulator."}, + {"test", CmdEMVTest, 0, "Crypto logic test."}, + {NULL, NULL, 0, NULL} }; -int CmdHFEMV(const char *Cmd) { +int CmdEMV(const char *Cmd) { CmdsParse(CommandTable, Cmd); return 0; }