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FIX: commented code screws up notepad++ groupings.

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This commit is contained in:
iceman1001 2017-02-06 00:50:37 +01:00
parent a32e8034e0
commit d627a2fd8c
2 changed files with 73 additions and 79 deletions
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148
armsrc/emvcmd.c
View file

@ -11,15 +11,10 @@
#include "emvcmd.h"
static emvtags currentcard; //use to hold emv tags for the reader/card during communications
//static tUart Uart;
// The FPGA will report its internal sending delay in
uint16_t FpgaSendQueueDelay;
//variables used for timing purposes:
//these are in ssp_clk cycles:
//static uint32_t NextTransferTime;
//static uint32_t LastTimeProxToAirStart;
//static uint32_t LastProxToAirDuration;
//uint16_t FpgaSendQueueDelay;
//load individual tag into current card
void EMVloadvalue(uint32_t tag, uint8_t *datain){
@ -31,15 +26,13 @@ void EMVloadvalue(uint32_t tag, uint8_t *datain){
void EMVReadRecord(uint8_t arg0, uint8_t arg1,emvtags *currentcard)
{
uint8_t record = arg0;
uint8_t sfi = arg1 & 0x0F; //convert arg1 to number
uint8_t sfi = arg1 & 0x0F; // convert arg1 to number
uint8_t receivedAnswer[MAX_FRAME_SIZE];
//uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
//variables
tlvtag inputtag; //create the tag structure
//perform read
//write the result to the provided card
// variables
tlvtag inputtag; // create the tag structure
// perform read
// write the result to the provided card
if(!emv_readrecord(record,sfi,receivedAnswer)) {
if(EMV_DBGLEVEL >= 1) Dbprintf("readrecord failed");
}
@ -58,33 +51,32 @@ void EMVReadRecord(uint8_t arg0, uint8_t arg1,emvtags *currentcard)
void EMVSelectAID(uint8_t *AID, uint8_t AIDlen, emvtags* inputcard)
{
uint8_t receivedAnswer[MAX_FRAME_SIZE];
//uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
//variables
tlvtag inputtag; //create the tag structure
//perform select
// variables
tlvtag inputtag; // create the tag structure
// perform select
if(!emv_select(AID, AIDlen, receivedAnswer)){
if(EMV_DBGLEVEL >= 1) Dbprintf("AID Select failed");
return;
}
//write the result to the provided card
// write the result to the provided card
if(*(receivedAnswer+1) == 0x6F){
//decode the 6F template
// decode the 6F template
decode_ber_tlv_item(receivedAnswer+1, &inputtag);
//store 84 and A5 tags
// store 84 and A5 tags
emv_decode_field(inputtag.value, inputtag.valuelength, &currentcard);
//decode the A5 tag
// decode the A5 tag
if(currentcard.tag_A5_len > 0)
emv_decode_field(currentcard.tag_A5, currentcard.tag_A5_len, &currentcard);
//copy this result to the DFName
// copy this result to the DFName
if(currentcard.tag_84_len == 0)
memcpy(currentcard.tag_DFName, currentcard.tag_84, currentcard.tag_84_len);
//decode the BF0C result, assuming 1 directory entry for now
// decode the BF0C result, assuming 1 directory entry for now
if(currentcard.tag_BF0C_len !=0){
emv_decode_field(currentcard.tag_BF0C, currentcard.tag_BF0C_len, &currentcard);}
//retrieve the AID, use the AID to decide what transaction flow to use
// retrieve the AID, use the AID to decide what transaction flow to use
if(currentcard.tag_61_len !=0){
emv_decode_field(currentcard.tag_61, currentcard.tag_61_len, &currentcard);}
}
@ -95,29 +87,28 @@ void EMVSelectAID(uint8_t *AID, uint8_t AIDlen, emvtags* inputcard)
int EMVGetProcessingOptions(uint8_t *PDOL, uint8_t PDOLlen, emvtags* inputcard)
{
uint8_t receivedAnswer[MAX_FRAME_SIZE];
//uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
//variables
// variables
tlvtag inputtag; //create the tag structure
//perform pdol
// perform pdol
if(!emv_getprocessingoptions(PDOL, PDOLlen, receivedAnswer)){
if(EMV_DBGLEVEL >= 1) Dbprintf("get processing options failed");
return 0;
}
//write the result to the provided card
//FORMAT 1 received
// write the result to the provided card
// FORMAT 1 received
if(receivedAnswer[1] == 0x80){
//store AIP
//decode tag 80
// store AIP
// decode tag 80
decode_ber_tlv_item(receivedAnswer+1, &inputtag);
memcpy(currentcard.tag_82, &inputtag.value, sizeof(currentcard.tag_82));
memcpy(currentcard.tag_94, &inputtag.value[2], inputtag.valuelength - sizeof(currentcard.tag_82));
currentcard.tag_94_len = inputtag.valuelength - sizeof(currentcard.tag_82);
}
else if(receivedAnswer[1] == 0x77){
//decode the 77 template
// decode the 77 template
decode_ber_tlv_item(receivedAnswer+1, &inputtag);
//store 82 and 94 tags (AIP, AFL)
// store 82 and 94 tags (AIP, AFL)
emv_decode_field(inputtag.value, inputtag.valuelength, &currentcard);
}
if(EMV_DBGLEVEL >= 2)
@ -128,9 +119,9 @@ int EMVGetProcessingOptions(uint8_t *PDOL, uint8_t PDOLlen, emvtags* inputcard)
int EMVGetChallenge(emvtags* inputcard)
{
uint8_t receivedAnswer[MAX_FRAME_SIZE];
//variables
//tlvtag inputtag; //create the tag structure
//perform select
// variables
// tlvtag inputtag; //create the tag structure
// perform select
if(!emv_getchallenge(receivedAnswer)){
if(EMV_DBGLEVEL >= 1) Dbprintf("get processing options failed");
return 1;
@ -148,12 +139,12 @@ int EMVGenerateAC(uint8_t refcontrol, emvtags* inputcard)
if(currentcard.tag_8C_len > 0) {
emv_generateDOL(currentcard.tag_8C, currentcard.tag_8C_len, &currentcard, cdolcommand, &cdolcommandlen); }
else{
//cdolcommand = NULL; //cdol val is null
// cdolcommand = NULL; //cdol val is null
cdolcommandlen = 0;
}
//variables
//tlvtag inputtag; //create the tag structure
//perform select
// variables
// tlvtag inputtag; //create the tag structure
// perform select
if(!emv_generateAC(refcontrol, cdolcommand, cdolcommandlen,receivedAnswer)){
if(EMV_DBGLEVEL >= 1) Dbprintf("get processing options failed");
return 1;
@ -172,7 +163,7 @@ int EMVGenerateAC(uint8_t refcontrol, emvtags* inputcard)
int EMV_PaywaveTransaction()
{
uint8_t cardMode = 0;
//determine mode of transaction from TTQ
// determine mode of transaction from TTQ
if((currentcard.tag_9F66[0] & 0x40) == 0x40) {
cardMode = VISA_EMV;
}
@ -187,9 +178,9 @@ int EMV_PaywaveTransaction()
}
}
EMVSelectAID(currentcard.tag_4F,currentcard.tag_4F_len, &currentcard); //perform second AID command
EMVSelectAID(currentcard.tag_4F,currentcard.tag_4F_len, &currentcard); // perform second AID command
//get PDOL
// get PDOL
uint8_t pdolcommand[20]; //20 byte buffer for pdol data
uint8_t pdolcommandlen = 0;
if(currentcard.tag_9F38_len > 0) {
@ -208,7 +199,7 @@ int EMV_PaywaveTransaction()
Dbhexdump(2, currentcard.tag_82, false);
emv_decodeAIP(currentcard.tag_82);
//
// //decode the AFL list and read records
// decode the AFL list and read records
uint8_t i = 0;
uint8_t sfi = 0;
uint8_t recordstart = 0;
@ -219,11 +210,11 @@ int EMV_PaywaveTransaction()
recordstart = currentcard.tag_94[i++];
recordend = currentcard.tag_94[i++];
for(int j=recordstart; j<(recordend+1); j++){
//read records
// read records
EMVReadRecord(j,sfi, &currentcard);
//while(responsebuffer[0] == 0xF2) {
// while(responsebuffer[0] == 0xF2) {
// EMVReadRecord(j,sfi, &currentcard);
//}
// }
}
i++;
}
@ -239,25 +230,24 @@ int EMV_PaywaveTransaction()
EMVReadRecord(3,3,&currentcard);
EMVReadRecord(4,2,&currentcard);
}
//EMVGetChallenge(&currentcard);
//memcpy(currentcard.tag_9F4C,&responsebuffer[1],8); // ICC UN
// EMVGetChallenge(&currentcard);
// memcpy(currentcard.tag_9F4C,&responsebuffer[1],8); // ICC UN
EMVGenerateAC(0x81,&currentcard);
Dbprintf("CARDMODE=%i",cardMode);
return 0;
}
int EMV_PaypassTransaction()
{
//uint8_t *responsebuffer = emv_get_bigbufptr();
//tlvtag temptag; //buffer for decoded tags
//get the current block counter
//select the AID (Mastercard
// uint8_t *responsebuffer = emv_get_bigbufptr();
// tlvtag temptag; //buffer for decoded tags
// get the current block counter
// select the AID (Mastercard
EMVSelectAID(currentcard.tag_4F,currentcard.tag_4F_len, &currentcard);
//get PDOL
uint8_t pdolcommand[20]; //20 byte buffer for pdol data
// get PDOL
uint8_t pdolcommand[20]; // 20 byte buffer for pdol data
uint8_t pdolcommandlen = 0;
if(currentcard.tag_9F38_len > 0) {
emv_generateDOL(currentcard.tag_9F38, currentcard.tag_9F38_len, &currentcard, pdolcommand, &pdolcommandlen);
@ -273,7 +263,7 @@ int EMV_PaypassTransaction()
Dbhexdump(2, currentcard.tag_82, false);
emv_decodeAIP(currentcard.tag_82);
//decode the AFL list and read records
// decode the AFL list and read records
uint8_t i = 0;
uint8_t sfi = 0;
uint8_t recordstart = 0;
@ -284,47 +274,47 @@ int EMV_PaypassTransaction()
recordstart = currentcard.tag_94[i++];
recordend = currentcard.tag_94[i++];
for(int j=recordstart; j<(recordend+1); j++){
//read records
// read records
EMVReadRecord(j,sfi, &currentcard);
//while(responsebuffer[0] == 0xF2) {
// while(responsebuffer[0] == 0xF2) {
// EMVReadRecord(j,sfi, &currentcard);
//}
// }
}
i++;
}
/* get ICC dynamic data */
if((currentcard.tag_82[0] & AIP_CDA_SUPPORTED) == AIP_CDA_SUPPORTED)
{
//DDA supported, so perform GENERATE AC
//generate the iCC UN
// DDA supported, so perform GENERATE AC
// generate the iCC UN
EMVGetChallenge(&currentcard);
//memcpy(currentcard.tag_9F4C,&responsebuffer[1],8); // ICC UN
EMVGenerateAC(0x80,&currentcard);
//generate AC2
//if(currentcard.tag_8D_len > 0) {
// generate AC2
// if(currentcard.tag_8D_len > 0) {
// emv_generateDOL(currentcard.tag_8D, currentcard.tag_8D_len, &currentcard, cdolcommand, &cdolcommandlen); }
//else{
// else{
// //cdolcommand = NULL; //cdol val is null
// cdolcommandlen = 0;
//}
//emv_generateAC(0x80, cdolcommand,cdolcommandlen, &currentcard);
// }
// emv_generateAC(0x80, cdolcommand,cdolcommandlen, &currentcard);
//if(responsebuffer[1] == 0x77) //format 2 data field returned
//{
// if(responsebuffer[1] == 0x77) //format 2 data field returned
// {
// decode_ber_tlv_item(&responsebuffer[1], &temptag);
// emv_decode_field(temptag.value, temptag.valuelength, &currentcard);
//}
// }
}
//generate cryptographic checksum
//uint8_t udol[4] = {0x00,0x00,0x00,0x00};
//emv_computecryptogram(udol, sizeof(udol));
//if(responsebuffer[1] == 0x77) //format 2 data field returned
//{
// generate cryptographic checksum
// uint8_t udol[4] = {0x00,0x00,0x00,0x00};
// emv_computecryptogram(udol, sizeof(udol));
// if(responsebuffer[1] == 0x77) //format 2 data field returned
// {
// decode_ber_tlv_item(&responsebuffer[1], &temptag);
// emv_decode_field(temptag.value, temptag.valuelength, &currentcard);
//}
// }
return 0;
}
@ -344,6 +334,7 @@ void EMVTransaction()
LED_C_OFF();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
while(true) {
if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {
if(EMV_DBGLEVEL >= 1) Dbprintf("Can't select card");
@ -351,6 +342,7 @@ void EMVTransaction()
}
//selectPPSE
EMVSelectAID((uint8_t *)DF_PSE, 14, &currentcard); //hard coded len
//get response
if (!memcmp(currentcard.tag_4F, AID_MASTERCARD, sizeof(AID_MASTERCARD))){
Dbprintf("Mastercard Paypass Card Detected");

4
armsrc/emvutil.c
View file

@ -1389,7 +1389,6 @@ int emv_getprocessingoptions(uint8_t* pdol, uint8_t pdol_len, void* data)
if(pdol_len > 0){
memcpy(&(processingCmd[7]), pdol, pdol_len);}
processingCmd[processingCmd_len] = 0x00;
//Dbhexdump(processingCmd_len, processingCmd, false);
return iso14_apdu(processingCmd, processingCmd_len, data);
}
@ -1458,6 +1457,7 @@ int emv_decodeAFL(uint8_t* AFL, uint8_t AFLlen ){
return 0;
}
//ICEMAN: move to client
//Print out AIP Bit meanings
int emv_decodeAIP(uint8_t* AIP)
{
@ -1480,6 +1480,7 @@ int emv_decodeAIP(uint8_t* AIP)
return 0;
}
//ICEMAN: move to client
int emv_decodeCVM(uint8_t* CVM, uint8_t CVMlen)
{
uint8_t counter = 0;
@ -1545,6 +1546,7 @@ int emv_decodeCVM(uint8_t* CVM, uint8_t CVMlen)
return 0;
}
//ICEMAN: move to client
//dump the current card to the console
void dumpCard(emvtags* currentcard){
DUMP(currentcard->ATQA);