From 02ab5afa8701ecc9434e7d8c30850d0d4ec5903f Mon Sep 17 00:00:00 2001 From: merlokk Date: Thu, 13 Sep 2018 19:53:14 +0300 Subject: [PATCH] add terminal decision to `genac` and small fixes --- client/cliparser/cliparser.h | 2 +- client/emv/cmdemv.c | 58 ++++++++++++++++++++++++------------ 2 files changed, 40 insertions(+), 20 deletions(-) diff --git a/client/cliparser/cliparser.h b/client/cliparser/cliparser.h index 9d83a95f..169f102e 100644 --- a/client/cliparser/cliparser.h +++ b/client/cliparser/cliparser.h @@ -19,7 +19,7 @@ #define arg_get_lit(n)(((struct arg_lit*)argtable[n])->count) #define arg_get_int(n)(((struct arg_int*)argtable[n])->ival[0]) #define arg_get_str(n)((struct arg_str*)argtable[n]) -#define arg_get_str_len(n)(strlen(((struct arg_int*)argtable[n])->ival[0])) +#define arg_get_str_len(n)(strlen(((struct arg_str*)argtable[n])->sval[0])) #define CLIExecWithReturn(cmd, atbl, ifempty) if (CLIParserParseString(cmd, atbl, arg_getsize(atbl), ifempty)){CLIParserFree();return 0;} #define CLIGetStrBLessWithReturn(paramnum, data, datalen, delta) if (CLIParamHexToBuf(arg_get_str(paramnum), data, sizeof(data) - (delta), datalen)) {CLIParserFree();return 1;} diff --git a/client/emv/cmdemv.c b/client/emv/cmdemv.c index bc908574..571e1880 100644 --- a/client/emv/cmdemv.c +++ b/client/emv/cmdemv.c @@ -18,7 +18,7 @@ int CmdHFEMVSelect(const char *cmd) { 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"); @@ -62,7 +62,7 @@ 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"); @@ -107,7 +107,7 @@ 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"); @@ -161,7 +161,7 @@ int CmdHFEMVGPO(const char *cmd) { uint8_t data[APDU_RES_LEN] = {0}; int datalen = 0; - CLIParserInit("hf 14a gpo", + 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 -st 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n"); // here need to add load params from file and gen pdol @@ -268,7 +268,7 @@ int CmdHFEMVReadRecord(const char *cmd) { uint8_t data[APDU_RES_LEN] = {0}; int datalen = 0; - CLIParserInit("hf 14a readrec", + 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"); @@ -318,27 +318,47 @@ int CmdHFEMVAC(const char *cmd) { uint8_t data[APDU_RES_LEN] = {0}; int datalen = 0; - CLIParserInit("hf 14a genac", + 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 -> execute GPO with 2-byte CDOLdata and keep field ON after command\n" - "\thf emv genac -t 01020304 -> execute GPO with 4-byte CDOL data, show result in TLV\n"); + "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"); 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_lit0("aA", "apdu", "show APDU reqests and responses"), - arg_lit0("tT", "tlv", "TLV decode results of selected applets"), - arg_str1(NULL, NULL, "", NULL), + 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("aA", "apdu", "show APDU reqests and responses"), + arg_lit0("tT", "tlv", "TLV decode results of selected applets"), + arg_str1(NULL, NULL, "", NULL), arg_param_end }; CLIExecWithReturn(cmd, argtable, false); bool leaveSignalON = arg_get_lit(1); bool trTypeCDA = arg_get_lit(2); - bool APDULogging = arg_get_lit(3); - bool decodeTLV = arg_get_lit(4); - CLIGetStrWithReturn(5, data, &datalen); + 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 APDULogging = arg_get_lit(4); + bool decodeTLV = arg_get_lit(5); + CLIGetStrWithReturn(6, data, &datalen); CLIParserFree(); SetAPDULogging(APDULogging); @@ -362,7 +382,7 @@ int CmdHFEMVAC(const char *cmd) { uint8_t buf[APDU_RES_LEN] = {0}; size_t len = 0; uint16_t sw = 0; - int res = EMVAC(leaveSignalON, (trTypeCDA) ? EMVAC_TC + EMVAC_CDAREQ : EMVAC_TC, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); + int res = EMVAC(leaveSignalON, termDecision, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); // free(cdol_data_tlv); tlvdb_free(tlvRoot); @@ -381,7 +401,7 @@ int CmdHFEMVAC(const char *cmd) { int CmdHFEMVGenerateChallenge(const char *cmd) { - CLIParserInit("hf 14a challenge", + CLIParserInit("hf emv challenge", "Executes Generate Challenge command. It returns 4 or 8-byte random number from card:\n", "Usage:\n\thf emv challenge -> get challenge\n\thf emv challenge -k -> get challenge, keep fileld ON\n"); @@ -423,7 +443,7 @@ int CmdHFEMVInternalAuthenticate(const char *cmd) { uint8_t data[APDU_RES_LEN] = {0}; int datalen = 0; - CLIParserInit("hf 14a intauth", + 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"); -- 2.39.2