RfidResearchGroup/proxmark3
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tharexde 2020-09-23 23:44:42 +02:00
parent a27b3af4cb
commit 45a1a83752
1 changed files with 21 additions and 21 deletions
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42
armsrc/Standalone/lf_tharexde.c
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@ -80,7 +80,7 @@ static bool strip_check_parities(uint64_t data, uint32_t *word) {
uint8_t rparity = 0, cparity = 0;
uint8_t rparity_m = 0, cparity_m = 0, stop_bit_m = 0;
// strip parities
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 8; j++) {
@ -96,7 +96,7 @@ static bool strip_check_parities(uint64_t data, uint32_t *word) {
rparity ^= (*word >> (31 - 8 * i - j)) & 1;
}
}
// calculate column parities
for (int i = 0; i < 8; i++) {
cparity <<= 1;
@ -104,7 +104,7 @@ static bool strip_check_parities(uint64_t data, uint32_t *word) {
cparity ^= (*word >> (31 - 8 * j - i)) & 1;
}
}
// measured row parities
for (int i = 0; i < 4; i++) {
rparity_m <<= 1;
@ -113,10 +113,10 @@ static bool strip_check_parities(uint64_t data, uint32_t *word) {
// measured column parities
cparity_m = (data >> 1) & 0xFF;
// measured stop bit
stop_bit_m = data & 1;
if ((cparity_m == cparity) && (rparity_m == rparity) && (stop_bit_m == 0))
return true;
@ -128,24 +128,24 @@ static int get_input_data_from_file(uint32_t *words) {
size_t now = 0;
if (exists_in_spiffs(LF_EM4X50SIMULATE_INPUTFILE)) {
uint32_t size = size_in_spiffs((char *)LF_EM4X50SIMULATE_INPUTFILE);
uint8_t *mem = BigBuf_malloc(size);
Dbprintf(_YELLOW_("[=] found input file %s"), LF_EM4X50SIMULATE_INPUTFILE);
rdv40_spiffs_read_as_filetype((char *)LF_EM4X50SIMULATE_INPUTFILE, mem, size, RDV40_SPIFFS_SAFETY_SAFE);
now = size / 9;
for (int i = 0; i < now; i++)
for (int j = 0; j < 4; j++)
words[i] |= (hex2int(mem[2 * j + 9 * i]) << 4 | hex2int(mem[2 * j + 1 + 9 * i])) << ((3 - j) * 8);
Dbprintf(_YELLOW_("[=] read data from input file"));
}
BigBuf_free();
return (now > 0) ? now : 0;
}
@ -160,7 +160,7 @@ static void append(uint8_t *entry, size_t entry_len) {
}
LED_C_OFF();
}
void ModInfo(void) {
DbpString(_YELLOW_(" LF EM4x50 collector mode") " - a.k.a tharexde");
}
@ -202,11 +202,11 @@ void RunMod(void) {
SpinDown(100);
break;
}
if (state == STATE_SIM) {
if (state_change) {
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT);
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, LF_DIVISOR_125);
@ -214,7 +214,7 @@ void RunMod(void) {
AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT | GPIO_SSC_CLK;
AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK;
LED_A_ON();
LED_B_OFF();
Dbprintf(_YELLOW_("[=] switched to EM4x50 simulating mode"));
@ -224,7 +224,7 @@ void RunMod(void) {
Dbprintf(_YELLOW_("[=] simulating %i blocks"), now);
for (int i = 0; i < now; i++)
Dbprintf(_YELLOW_("[=] %2i -> %lx"), i + 1, words[i]);
} else {
Dbprintf(_RED_("[!] error in input data"));
}
@ -237,7 +237,7 @@ void RunMod(void) {
em4x50_sim_send_listen_window();
em4x50_sim_send_word(words[i]);
}
} else if (state == STATE_READ) {
if (state_change) {
@ -255,7 +255,7 @@ void RunMod(void) {
}
no_words = em4x50_standalone_read(data);
if (no_words > 0) {
memset(entry, 0, sizeof(entry));
@ -266,12 +266,12 @@ void RunMod(void) {
append(entry, strlen((char *)entry));
for (int i = 0; i < no_words; i++) {
if (strip_check_parities(data[i], &word))
sprintf((char *)entry, " %2i -> 0x%08"PRIx32" (parity check ok)", i + 1, word);
else
sprintf((char *)entry, " %2i -> 0x%08"PRIx32" (parity check failed)", i + 1, word);
Dbprintf("%s", entry);
strcat((char *)entry, "\n");
append(entry, strlen((char *)entry));
@ -280,7 +280,7 @@ void RunMod(void) {
}
}
if (state == STATE_READ)
DownloadLogInstructions();
else