X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/626e650fbfba3cf2fb8adfa0a256466f9a2fd479..92479429c2e3526fce39a09d19ca0856bb041a09:/client/emv/cmdemv.c diff --git a/client/emv/cmdemv.c b/client/emv/cmdemv.c index a4018649..6bac90d6 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 @@ -12,13 +12,164 @@ #include "cmdemv.h" #include "test/cryptotest.h" #include "cliparser/cliparser.h" +#include + +bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, size_t maxbufferlen, size_t *bufferlen) { + int buflen = 0; + + switch(param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) { + case 1: + PrintAndLog("%s Invalid HEX value.", errormsg); + return false; + case 2: + PrintAndLog("%s Hex value too large.", errormsg); + return false; + case 3: + PrintAndLog("%s Hex value must have even number of digits.", errormsg); + return false; + } + + if (buflen > maxbufferlen) { + PrintAndLog("%s HEX length (%d) more than %d", errormsg, *bufferlen, maxbufferlen); + return false; + } + + *bufferlen = buflen; + + return true; +} + +#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 +} + +bool ParamLoadFromJson(struct tlvdb *tlv) { + json_t *root; + json_error_t error; + + if (!tlv) { + PrintAndLog("ERROR load params: tlv tree is NULL."); + return false; + } + + // current path + file name + const char *relfname = "emv/defparams.json"; + char fname[strlen(get_my_executable_directory()) + strlen(relfname) + 1]; + strcpy(fname, get_my_executable_directory()); + strcat(fname, relfname); + + root = json_load_file(fname, 0, &error); + if (!root) { + PrintAndLog("Load params: json error on line %d: %s", error.line, error.text); + return false; + } + + if (!json_is_array(root)) { + PrintAndLog("Load params: Invalid json format. root must be array."); + return false; + } + + PrintAndLog("Load params: json OK"); + + for(int i = 0; i < json_array_size(root); i++) { + json_t *data, *jtype, *jlength, *jvalue; + + data = json_array_get(root, i); + if(!json_is_object(data)) + { + PrintAndLog("Load params: data [%d] is not an object", i + 1); + json_decref(root); + return false; + } + + jtype = json_object_get(data, "type"); + if(!json_is_string(jtype)) + { + PrintAndLog("Load params: data [%d] type is not a string", i + 1); + json_decref(root); + return false; + } + const char *tlvType = json_string_value(jtype); + + jvalue = json_object_get(data, "value"); + if(!json_is_string(jvalue)) + { + PrintAndLog("Load params: data [%d] value is not a string", i + 1); + json_decref(root); + return false; + } + const char *tlvValue = json_string_value(jvalue); + + jlength = json_object_get(data, "length"); + if(!json_is_number(jlength)) + { + PrintAndLog("Load params: data [%d] length is not a number", i + 1); + json_decref(root); + return false; + } + + int tlvLength = json_integer_value(jlength); + if (tlvLength > 250) { + PrintAndLog("Load params: data [%d] length more than 250", i + 1); + json_decref(root); + return false; + } + + PrintAndLog("TLV param: %s[%d]=%s", tlvType, tlvLength, tlvValue); + uint8_t buf[251] = {0}; + size_t buflen = 0; + + // here max length must be 4, but now tlv_tag_t is 2-byte var. so let it be 2 by now... TODO: needs refactoring tlv_tag_t... + if (!HexToBuffer("TLV Error type:", tlvType, buf, 2, &buflen)) { + json_decref(root); + return false; + } + tlv_tag_t tag = 0; + for (int i = 0; i < buflen; i++) { + tag = (tag << 8) + buf[i]; + } + + if (!HexToBuffer("TLV Error value:", tlvValue, buf, sizeof(buf) - 1, &buflen)) { + json_decref(root); + return false; + } + + if (buflen != tlvLength) { + PrintAndLog("Load params: data [%d] length of HEX must(%d) be identical to length in TLV param(%d)", i + 1, buflen, tlvLength); + json_decref(root); + return false; + } + + tlvdb_change_or_add_node(tlv, tag, tlvLength, (const unsigned char *)buf); + } + + json_decref(root); + + return true; +} int CmdHFEMVSelect(const char *cmd) { uint8_t data[APDU_AID_LEN] = {0}; int datalen = 0; - - CLIParserInit("hf 14a select", + CLIParserInit("hf emv select", "Executes select applet command", "Usage:\n\thf emv select -s a00000000101 -> select card, select applet\n\thf emv select -st a00000000101 -> select card, select applet, show result in TLV\n"); @@ -28,7 +179,7 @@ int CmdHFEMVSelect(const char *cmd) { 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"), - arg_str0(NULL, NULL, "", NULL), + arg_strx0(NULL, NULL, "", NULL), arg_param_end }; CLIExecWithReturn(cmd, argtable, true); @@ -37,7 +188,7 @@ int CmdHFEMVSelect(const char *cmd) { bool leaveSignalON = arg_get_lit(2); bool APDULogging = arg_get_lit(3); bool decodeTLV = arg_get_lit(4); - CLIGetStrBLessWithReturn(5, data, &datalen, 0); + CLIGetStrWithReturn(5, data, &datalen); CLIParserFree(); SetAPDULogging(APDULogging); @@ -62,7 +213,7 @@ int CmdHFEMVSelect(const char *cmd) { int CmdHFEMVSearch(const char *cmd) { - CLIParserInit("hf 14a select", + CLIParserInit("hf emv search", "Tries to select all applets from applet list:\n", "Usage:\n\thf emv search -s -> select card and search\n\thf emv search -st -> select card, search and show result in TLV\n"); @@ -107,8 +258,7 @@ int CmdHFEMVSearch(const char *cmd) { int CmdHFEMVPPSE(const char *cmd) { - - CLIParserInit("hf 14a pse", + CLIParserInit("hf emv pse", "Executes PSE/PPSE select command. It returns list of applet on the card:\n", "Usage:\n\thf emv pse -s1 -> select, get pse\n\thf emv pse -st2 -> select, get ppse, show result in TLV\n"); @@ -157,60 +307,393 @@ int CmdHFEMVPPSE(const char *cmd) { } int CmdHFEMVGPO(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("hf 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\thf emv gpo -k -> execute GPO\n" + "\thf emv gpo -t 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n" + "\thf emv 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"), + arg_strx0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + 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); + CLIGetStrWithReturn(6, data, &datalen); + 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) { + PrintAndLog("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){ + PrintAndLog("ERROR: can't create PDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLog("WARNING: don't need to load parameters. Sending plain PDOL data..."); + } + 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) { + PrintAndLog("ERROR: can't create PDOL data."); + tlvdb_free(tlvRoot); + return 4; + } + PrintAndLog("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(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) + PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); return 0; } int CmdHFEMVReadRecord(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; + + CLIParserInit("hf 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\thf emv readrec -k 0101 -> read file SFI=01, SFIrec=01\n\thf emv 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"), + 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); + CLIGetStrWithReturn(4, data, &datalen); + CLIParserFree(); + + if (datalen != 2) { + PrintAndLog("ERROR: 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 = EMVReadRecord(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)); + + if (res) + return res; + + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); return 0; } int CmdHFEMVAC(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; - return 0; + CLIParserInit("hf 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\thf emv genac -k 0102 -> generate AC with 2-byte CDOLdata and keep field ON after command\n" + "\thf emv genac -t 01020304 -> generate AC with 4-byte CDOL data, show result in TLV\n" + "\thf emv genac -Daac 01020304 -> generate AC with 4-byte CDOL data and terminal decision 'declined'\n" + "\thf emv 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"), + 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); + CLIGetStrWithReturn(8, data, &datalen); + 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) { + PrintAndLog("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){ + PrintAndLog("ERROR: can't create CDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLog("WARNING: don't need to load parameters. Sending plain CDOL data..."); + } + cdol_data_tlv = &data_tlv; + } + + PrintAndLog("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(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) + PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + return 0; } int CmdHFEMVGenerateChallenge(const char *cmd) { + CLIParserInit("hf 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\thf emv challenge -> get challenge\n\thf emv 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"), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool leaveSignalON = arg_get_lit(1); + bool APDULogging = arg_get_lit(2); + CLIParserFree(); + + SetAPDULogging(APDULogging); + + // exec + uint8_t buf[APDU_RES_LEN] = {0}; + size_t len = 0; + uint16_t sw = 0; + int res = EMVGenerateChallenge(leaveSignalON, buf, sizeof(buf), &len, &sw, NULL); + + if (sw) + PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + PrintAndLog("Challenge: %s", sprint_hex(buf, len)); + + if (len != 4 && len != 8) + PrintAndLog("WARNING: length of challenge must be 4 or 8, but it %d", len); + return 0; } int CmdHFEMVInternalAuthenticate(const char *cmd) { + uint8_t data[APDU_RES_LEN] = {0}; + int datalen = 0; - return 0; -} + CLIParserInit("hf 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\thf emv intauth -k 01020304 -> execute Internal Authenticate with 4-byte DDOLdata and keep field ON after command\n" + "\thf emv intauth -t 01020304 -> execute Internal Authenticate with 4-byte DDOL data, show result in TLV\n" + "\thf emv intauth -pmt 9F 37 04 -> load params from file, make DDOL data from DDOL, Internal Authenticate with DDOL, show result in TLV"); -int UsageCmdHFEMVExec(void) { - PrintAndLog("HELP : Executes EMV contactless transaction:\n"); - PrintAndLog("Usage: hf emv exec [-s][-a][-t][-f][-v][-c][-x][-g]\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(" -v : transaction type - qVSDC or M/Chip.\n"); - PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); - PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); - PrintAndLog(" -g : VISA. generate AC from GPO\n"); - PrintAndLog("By default : transaction type - MSD.\n"); - PrintAndLog("Samples:"); - PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction"); - PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction"); - return 0; + 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"), + 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); + CLIGetStrWithReturn(6, data, &datalen); + 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 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) { + PrintAndLog("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){ + PrintAndLog("ERROR: can't create DDOL TLV."); + tlvdb_free(tlvRoot); + return 4; + } + } else { + if (paramsLoadFromFile) { + PrintAndLog("WARNING: don't need to load parameters. Sending plain DDOL data..."); + } + ddol_data_tlv = &data_tlv; + } + + PrintAndLog("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(leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); + + if (ddol_data_tlv != &data_tlv) + free(ddol_data_tlv); + tlvdb_free(tlvRoot); + + if (sw) + PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); + + if (res) + return res; + + if (decodeTLV) + TLVPrintFromBuffer(buf, len); + + return 0; } -#define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) ) #define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} int CmdHFEMVExec(const char *cmd) { - bool activateField = false; - bool showAPDU = false; - bool decodeTLV = false; - bool forceSearch = false; - enum TransactionType TrType = TT_MSD; - bool GenACGPO = false; - uint8_t buf[APDU_RES_LEN] = {0}; size_t len = 0; uint16_t sw = 0; @@ -225,59 +708,45 @@ int CmdHFEMVExec(const char *cmd) { struct tlvdb *tlvRoot = NULL; struct tlv *pdol_data_tlv = NULL; - 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': - UsageCmdHFEMVExec(); - 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; - case 'x': - case 'X': - TrType = TT_VSDC; - break; - case 'v': - case 'V': - TrType = TT_QVSDCMCHIP; - break; - case 'c': - case 'C': - TrType = TT_CDA; - break; - case 'g': - case 'G': - GenACGPO = true; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); - return 1; - } - cmdp++; - } + CLIParserInit("hf emv exec", + "Executes EMV contactless transaction", + "Usage:\n\thf emv exec -sat -> select card, execute MSD transaction, show APDU and TLV\n" + "\thf emv 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."), + 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(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); + CLIParserFree(); + + SetAPDULogging(showAPDU); // init applets list tree const char *al = "Applets list"; @@ -337,7 +806,14 @@ int CmdHFEMVExec(const char *cmd) { PrintAndLog("\n* Init transaction parameters."); - //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 + 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"; @@ -357,26 +833,9 @@ int CmdHFEMVExec(const char *cmd) { TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) break; default: - TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC break; } - //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"); - TLVPrintFromTLV(tlvRoot); // TODO delete!!! PrintAndLog("\n* Calc PDOL."); @@ -732,6 +1191,30 @@ int CmdHFEMVExec(const char *cmd) { return 0; } +int UsageCmdHFEMVScan(void) { + PrintAndLog("HELP : Scan EMV card and save it contents to a file. \n"); + PrintAndLog(" It executes EMV contactless transaction and saves result to a file which can be used for emulation.\n"); + PrintAndLog("Usage: hf emv scan [-a][-t][-v][-c][-x][-g] \n"); + PrintAndLog(" Options:"); + PrintAndLog(" -a : show APDU reqests and responses\n"); + PrintAndLog(" -t : TLV decode results\n"); + PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); + PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); + PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); + PrintAndLog(" -g : VISA. generate AC from GPO\n"); + PrintAndLog("By default : transaction type - MSD.\n"); + PrintAndLog("Samples:"); + PrintAndLog(" hf emv scan -a -t -> scan MSD transaction mode"); + PrintAndLog(" hf emv scan -a -t -c -> scan CDA transaction mode"); + return 0; +} + +int CmdHFEMVScan(const char *cmd) { + UsageCmdHFEMVScan(); + + return 0; +} + int CmdHFEMVTest(const char *cmd) { return ExecuteCryptoTests(true); } @@ -748,7 +1231,8 @@ static command_t CommandTable[] = { {"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."}, {"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."}, {"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."}, - {"test", CmdHFEMVTest, 0, "Crypto logic test."}, +// {"scan", CmdHFEMVScan, 0, "Scan EMV card and save it contents to json file for emulator."}, + {"test", CmdHFEMVTest, 0, "Crypto logic test."}, {NULL, NULL, 0, NULL} };