/* performs iso14443a anticolision procedure
* fills the uid pointer unless NULL
* fills resp_data unless NULL */
-int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr) {
+int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, uint32_t* cuid_ptr) {
uint8_t wupa[] = { 0x52 }; // 0x26 - REQA 0x52 - WAKE-UP
uint8_t sel_all[] = { 0x93,0x20 };
uint8_t sel_uid[] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
uint8_t rats[] = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
-
uint8_t* resp = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET); // was 3560 - tied to other size changes
+ byte_t uid_resp[4];
+ size_t uid_resp_len;
uint8_t sak = 0x04; // cascade uid
int cascade_level = 0;
-
int len;
-
- // clear uid
- memset(uid_ptr, 0, 12);
-
+
// Broadcast for a card, WUPA (0x52) will force response from all cards in the field
ReaderTransmitShort(wupa);
// Receive the ATQA
if(!ReaderReceive(resp)) return 0;
// Dbprintf("atqa: %02x %02x",resp[0],resp[1]);
- if(resp_data)
- memcpy(resp_data->atqa, resp, 2);
+ if(p_hi14a_card) {
+ memcpy(p_hi14a_card->atqa, resp, 2);
+ p_hi14a_card->uidlen = 0;
+ memset(p_hi14a_card->uid,0,10);
+ }
+ // clear uid
+ if (uid_ptr) {
+ memset(uid_ptr,0,10);
+ }
+
// OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in
// which case we need to make a cascade 2 request and select - this is a long UID
// While the UID is not complete, the 3nd bit (from the right) is set in the SAK.
// SELECT_ALL
ReaderTransmit(sel_all,sizeof(sel_all));
if (!ReaderReceive(resp)) return 0;
-// Dbprintf("uid: %02x %02x %02x %02x",resp[0],resp[1],resp[2],resp[3]);
-
- if(uid_ptr) memcpy(uid_ptr + cascade_level*4, resp, 4);
-
+
+ // First backup the current uid
+ memcpy(uid_resp,resp,4);
+ uid_resp_len = 4;
+ // Dbprintf("uid: %02x %02x %02x %02x",uid_resp[0],uid_resp[1],uid_resp[2],uid_resp[3]);
+
// calculate crypto UID
- if(cuid_ptr) *cuid_ptr = bytes_to_num(resp, 4);
+ if(cuid_ptr) {
+ *cuid_ptr = bytes_to_num(uid_resp, 4);
+ }
// Construct SELECT UID command
memcpy(sel_uid+2,resp,5);
// Receive the SAK
if (!ReaderReceive(resp)) return 0;
sak = resp[0];
+
+ // Test if more parts of the uid are comming
+ if ((sak & 0x04) && uid_resp[0] == 0x88) {
+ // Remove first byte, 0x88 is not an UID byte, it CT, see page 3 of:
+ // http://www.nxp.com/documents/application_note/AN10927.pdf
+ memcpy(uid_ptr, uid_ptr + 1, 3);
+ uid_resp_len = 3;
+ }
+
+ if(uid_ptr) {
+ memcpy(uid_ptr + (cascade_level*3), uid_resp, uid_resp_len);
+ }
+
+ if(p_hi14a_card) {
+ memcpy(p_hi14a_card->uid + (cascade_level*3), uid_resp, uid_resp_len);
+ p_hi14a_card->uidlen += uid_resp_len;
+ }
}
- if(resp_data) {
- resp_data->sak = sak;
- resp_data->ats_len = 0;
- }
- //-- this byte not UID, it CT. http://www.nxp.com/documents/application_note/AN10927.pdf page 3
- if (uid_ptr[0] == 0x88) {
- memcpy(uid_ptr, uid_ptr + 1, 7);
- uid_ptr[7] = 0;
+
+ if(p_hi14a_card) {
+ p_hi14a_card->sak = sak;
+ p_hi14a_card->ats_len = 0;
}
- if( (sak & 0x20) == 0)
+ if( (sak & 0x20) == 0) {
return 2; // non iso14443a compliant tag
+ }
// Request for answer to select
- if(resp_data) { // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
+ if(p_hi14a_card) { // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
AppendCrc14443a(rats, 2);
ReaderTransmit(rats, sizeof(rats));
if (!(len = ReaderReceive(resp))) return 0;
- memcpy(resp_data->ats, resp, sizeof(resp_data->ats));
- resp_data->ats_len = len;
+ memcpy(p_hi14a_card->ats, resp, sizeof(p_hi14a_card->ats));
+ p_hi14a_card->ats_len = len;
}
// reset the PCB block number
iso14_pcb_blocknum = 0;
-
return 1;
}
iso14a_command_t param = c->arg[0];
uint8_t * cmd = c->d.asBytes;
size_t len = c->arg[1];
- uint32_t arg0;
- byte_t buf[48];
+ uint32_t arg0 = 0;
+ byte_t buf[USB_CMD_DATA_SIZE];
iso14a_clear_trace();
iso14a_set_tracing(true);
- if(param & ISO14A_REQUEST_TRIGGER) iso14a_set_trigger(1);
+ if(param & ISO14A_REQUEST_TRIGGER) {
+ iso14a_set_trigger(1);
+ }
if(param & ISO14A_CONNECT) {
iso14443a_setup();
- arg0 = iso14443a_select_card(buf, (iso14a_card_select_t *)(buf+12), NULL);
- cmd_send(CMD_ACK,arg0,0,0,buf,48);
+ arg0 = iso14443a_select_card(NULL,(iso14a_card_select_t*)buf,NULL);
+ cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(iso14a_card_select_t));
// UsbSendPacket((void *)ack, sizeof(UsbCommand));
}
if(param & ISO14A_APDU) {
arg0 = iso14_apdu(cmd, len, buf);
- cmd_send(CMD_ACK,arg0,0,0,buf,48);
+ cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
// UsbSendPacket((void *)ack, sizeof(UsbCommand));
}
ReaderTransmit(cmd,len);
arg0 = ReaderReceive(buf);
// UsbSendPacket((void *)ack, sizeof(UsbCommand));
- cmd_send(CMD_ACK,arg0,0,0,buf,48);
+ cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
}
- if(param & ISO14A_REQUEST_TRIGGER) iso14a_set_trigger(0);
+ if(param & ISO14A_REQUEST_TRIGGER) {
+ iso14a_set_trigger(0);
+ }
- if(param & ISO14A_NO_DISCONNECT)
+ if(param & ISO14A_NO_DISCONNECT) {
return;
+ }
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
projects / proxmark3-svn / blobdiff