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iceman1001 2025-03-19 11:26:25 +01:00
commit 3c873d34bc
4 changed files with 46 additions and 44 deletions
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2
armsrc/em4x70.c
View file

@ -906,7 +906,7 @@ static bool create_legacy_em4x70_bitstream_for_cmd_id(em4x70_command_bitstream_t
memset(out_cmd_bitstream, 0, sizeof(em4x70_command_bitstream_t));
out_cmd_bitstream->command = EM4X70_COMMAND_ID;
//uint8_t cmd = with_command_parity ? 0x3u : 0x1u;
uint8_t cmd = 0x3u;
uint8_t cmd = 0x3u;
result = result && add_nibble_to_bitstream(&out_cmd_bitstream->to_send, cmd, false);
out_cmd_bitstream->to_receive.bitcount = 32;
if (out_cmd_bitstream->to_send.bitcount != expected_bits_to_send) {

2
armsrc/hitag_common.c
View file

@ -451,7 +451,7 @@ void hitag_tag_receive_frame(uint8_t *rx, size_t sizeofrx, size_t *rxlen, uint32
// Receive frame, watch for at most T0*EOF periods
while (AT91C_BASE_TC1->TC_CV < T0 * HITAG_T_EOF) {
// Check if edge in modulation is detected
if (AT91C_BASE_TC1->TC_SR & next_edge_event) {
next_edge_event = next_edge_event ^ (AT91C_TC_LDRAS | AT91C_TC_LDRBS);

76
armsrc/iso14443a.c
View file

@ -3116,48 +3116,48 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, u
if (len == 0) {
BigBuf_free();
return 0; // DATA LINK ERROR
}
// S-Block WTX
while (len && ((data_bytes[0] & 0xF2) == 0xF2)) {
uint32_t save_iso14a_timeout = iso14a_get_timeout();
// temporarily increase timeout
iso14a_set_timeout(MAX((data_bytes[1] & 0x3f) * save_iso14a_timeout, MAX_ISO14A_TIMEOUT));
// Transmit WTX back
// byte1 - WTXM [1..59]. command FWT=FWT*WTXM
data_bytes[1] = data_bytes[1] & 0x3f; // 2 high bits mandatory set to 0b
// now need to fix CRC.
AddCrc14A(data_bytes, len - 2);
// transmit S-Block
ReaderTransmit(data_bytes, len, NULL);
// retrieve the result again (with increased timeout)
}
// S-Block WTX
while (len && ((data_bytes[0] & 0xF2) == 0xF2)) {
uint32_t save_iso14a_timeout = iso14a_get_timeout();
// temporarily increase timeout
iso14a_set_timeout(MAX((data_bytes[1] & 0x3f) * save_iso14a_timeout, MAX_ISO14A_TIMEOUT));
// Transmit WTX back
// byte1 - WTXM [1..59]. command FWT=FWT*WTXM
data_bytes[1] = data_bytes[1] & 0x3f; // 2 high bits mandatory set to 0b
// now need to fix CRC.
AddCrc14A(data_bytes, len - 2);
// transmit S-Block
ReaderTransmit(data_bytes, len, NULL);
// retrieve the result again (with increased timeout)
data_bytes[0] = 0x00;
len = ReaderReceive(data, data_len, parity_array);
data_bytes = data;
// restore timeout
iso14a_set_timeout(save_iso14a_timeout);
}
len = ReaderReceive(data, data_len, parity_array);
data_bytes = data;
// restore timeout
iso14a_set_timeout(save_iso14a_timeout);
}
// if we received an I- or R(ACK)-Block with a block number equal to the
// current block number, toggle the current block number
if (len >= 3 // PCB+CRC = 3 bytes
&& ((data_bytes[0] & 0xC0) == 0 // I-Block
|| (data_bytes[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
&& (data_bytes[0] & 0x01) == iso14_pcb_blocknum) { // equal block numbers
iso14_pcb_blocknum ^= 1;
}
// if we received an I- or R(ACK)-Block with a block number equal to the
// current block number, toggle the current block number
if (len >= 3 // PCB+CRC = 3 bytes
&& ((data_bytes[0] & 0xC0) == 0 // I-Block
|| (data_bytes[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
&& (data_bytes[0] & 0x01) == iso14_pcb_blocknum) { // equal block numbers
iso14_pcb_blocknum ^= 1;
}
// if we received I-block with chaining we need to send ACK and receive another block of data
if (res) {
*res = data_bytes[0];
}
// if we received I-block with chaining we need to send ACK and receive another block of data
if (res) {
*res = data_bytes[0];
}
// crc check
if (len >= 3 && !CheckCrc14A(data_bytes, len)) {
BigBuf_free();
return -1;
}
// crc check
if (len >= 3 && !CheckCrc14A(data_bytes, len)) {
BigBuf_free();
return -1;
}
if (len) {
// cut frame byte

10
doc/commands.json
View file

@ -10102,14 +10102,16 @@
"description": "Simulate Hitag S transponder You need to `lf hitag hts eload` first",
"notes": [
"lf hitag hts sim",
"lf hitag hts sim --82xx"
"lf hitag hts sim --82xx",
"lf hitag hts sim -t 30 -> set threshold to 30"
],
"offline": false,
"options": [
"-h, --help This help",
"-8, --82xx simulate 8268/8310"
"-8, --82xx simulate 8268/8310",
"-t, --threshold <dec> set edge detect threshold (def: 127)"
],
"usage": "lf hitag hts sim [-h8]"
"usage": "lf hitag hts sim [-h8] [-t <dec>]"
},
"lf hitag hts wrbl": {
"command": "lf hitag hts wrbl",
@ -13248,6 +13250,6 @@
"metadata": {
"commands_extracted": 761,
"extracted_by": "PM3Help2JSON v1.00",
"extracted_on": "2025-03-19T08:33:58"
"extracted_on": "2025-03-19T10:24:44"
}
}