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fix 14b apdu

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This commit is contained in:
Philippe Teuwen
2020-10-03 19:08:27 +02:00
parent 8e1546b012
commit e5f746e018
3 changed files with 12 additions and 11 deletions
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2
armsrc/epa.c
View File

@@ -118,7 +118,7 @@ static int EPA_APDU(uint8_t *apdu, size_t length, uint8_t *response, uint16_t re
case 'a':
return iso14_apdu(apdu, (uint16_t) length, false, response, NULL);
case 'b':
return iso14443b_apdu(apdu, length, false, response, respmaxlen);
return iso14443b_apdu(apdu, length, false, response, respmaxlen, NULL);
default:
return 0;
}

19
armsrc/iso14443b.c
View File

@@ -1168,7 +1168,7 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len, uint32_t
/* Sends an APDU to the tag
* TODO: check CRC and preamble
*/
int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, uint8_t *response, uint16_t respmaxlen) {
int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, void *rxdata, uint16_t rxmaxlen, uint8_t *res) {
uint8_t real_cmd[msg_len + 4];
@@ -1195,10 +1195,10 @@ int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, uint8
CodeAndTransmit14443bAsReader(real_cmd, msg_len + 3, &start_time, &eof_time);
eof_time += DELAY_ISO14443B_VCD_TO_VICC_READER;
int len = Get14443bAnswerFromTag(response, respmaxlen, ISO14443B_READER_TIMEOUT, &eof_time);
int len = Get14443bAnswerFromTag(rxdata, rxmaxlen, ISO14443B_READER_TIMEOUT, &eof_time);
FpgaDisableTracing();
uint8_t *data_bytes = (uint8_t *) response;
uint8_t *data_bytes = (uint8_t *) rxdata;
if (len <= 0) {
return 0; //DATA LINK ERROR
@@ -1219,10 +1219,10 @@ int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, uint8
// retrieve the result again (with increased timeout)
eof_time += DELAY_ISO14443B_VCD_TO_VICC_READER;
len = Get14443bAnswerFromTag(response, respmaxlen, ISO14443B_READER_TIMEOUT, &eof_time);
len = Get14443bAnswerFromTag(rxdata, rxmaxlen, ISO14443B_READER_TIMEOUT, &eof_time);
FpgaDisableTracing();
data_bytes = response;
data_bytes = rxdata;
// restore timeout
iso14b_set_timeout(save_iso14b_timeout);
}
@@ -1237,8 +1237,8 @@ int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, uint8
}
// if we received I-block with chaining we need to send ACK and receive another block of data
if (response)
*response = data_bytes[0];
if (res)
*res = data_bytes[0];
// crc check
if (len >= 3 && !check_crc(CRC_14443_B, data_bytes, len)) {
@@ -1877,9 +1877,10 @@ void SendRawCommand14443B_Ex(PacketCommandNG *c) {
}
if ((param & ISO14B_APDU) == ISO14B_APDU) {
status = iso14443b_apdu(cmd, len, (param & ISO14B_SEND_CHAINING), buf, sizeof(buf));
uint8_t res;
status = iso14443b_apdu(cmd, len, (param & ISO14B_SEND_CHAINING), buf, sizeof(buf), &res);
sendlen = MIN(Demod.len, PM3_CMD_DATA_SIZE);
reply_mix(CMD_HF_ISO14443B_COMMAND, status, status, 0, buf, sendlen);
reply_mix(CMD_HF_ISO14443B_COMMAND, status, res, 0, buf, sendlen);
}
if ((param & ISO14B_RAW) == ISO14B_RAW) {

2
armsrc/iso14443b.h
View File

@@ -27,7 +27,7 @@
#endif
void iso14443b_setup(void);
int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, uint8_t *response, uint16_t respmaxlen);
int iso14443b_apdu(uint8_t const *msg, size_t msg_len, bool send_chaining, void *rxdata, uint16_t rxmaxlen, uint8_t *res);
int iso14443b_select_card(iso14b_card_select_t *card);
int iso14443b_select_card_srx(iso14b_card_select_t *card);