github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 13:53:55 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

- added flash defines (RDV4)

Browse source 
- modified LED signals
- cleanup
This commit is contained in:
tharexde 2021-02-11 19:29:43 +01:00
commit a944ff5927
1 changed files with 41 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

69
armsrc/Standalone/lf_tharexde.c
View file

@ -27,21 +27,26 @@
* It requires RDV4 hardware (for flash and battery).
*
* On entering stand-alone mode, this module will start simulating EM4x50 data.
* Data is read from eml dump file uploaded to flash memory.
* Data is read from eml dump file uploaded to flash memory (lf_em4x50_simulate.eml).
* If reader sends password different from dump file password, 'new' password
* is saved in file lf_em4x50_passwords.log in flash memory.
*
* On switching to read/record mode by pressing pm3 button, module will start
* reading EM4x50 data. Each collected data set will be written/appended to the
* logfile in flash as a text string.
* logfile in flash (lf_em4x50_collect.log) as a text string.
*
* LEDs:
* - LED A: simulating
* - LED A blinking: no simulation data or read error
* - LED B: reading/recording
* - LED C: writing to flash
* - LED D: unmounting/sync'ing flash (normally < 100ms)
*
* To upload input file (eml format) to flash:
* - mem spiffs load f <filename> o lf_em4x50_simulate.eml
*
* To retrieve password file from flash:
* - mem spiffs dump o lf_em4x50_passwords.log f <filename>
*
* To retrieve log file from flash:
* - mem spiffs dump o lf_em4x50_collect.log f <filename>
*
@ -52,6 +57,9 @@
* - mem spiffs remove lf_em4x50_simulate.eml
*
* To delete the log file from flash:
* - mem spiffs remove lf_em4x50_passwords.log
*
* To delete the log file from flash:
* - mem spiffs remove lf_em4x50_collect.log
*/
@ -59,11 +67,9 @@
#define STATE_READ 1
#define EM4X50_TAG_WORD 45
#define LF_EM4X50_INPUTFILE_SIM "lf_em4x50_simulate.eml"
#define LF_EM4X50_LOGFILE_SIM "lf_em4x50_tag_data.log"
#define LF_EM4X50_LOGFILE_SIM "lf_em4x50_passwords.log"
#define LF_EM4X50_LOGFILE_COLLECT "lf_em4x50_collect.log"
bool input_exists;
bool log_exists;
uint32_t gPassword;
static void LoadDataInstructions(const char *inputfile) {
@ -86,6 +92,8 @@ static void DownloadLogInstructions(const char *logfile) {
static bool get_input_data_from_file(uint32_t *tag, char *inputfile) {
size_t now = 0;
#ifdef WITH_FLASH
if (exists_in_spiffs(inputfile)) {
uint32_t size = size_in_spiffs(inputfile);
@ -106,18 +114,20 @@ static bool get_input_data_from_file(uint32_t *tag, char *inputfile) {
}
BigBuf_free();
#endif
return ((now == EM4X50_NO_WORDS) && (tag[EM4X50_DEVICE_SERIAL] != tag[EM4X50_DEVICE_ID]));
}
static void append(const char *filename, uint8_t *entry, size_t entry_len) {
if (log_exists == false) {
rdv40_spiffs_write(filename, entry, entry_len, RDV40_SPIFFS_SAFETY_SAFE);
log_exists = true;
} else {
#ifdef WITH_FLASH
if (exists_in_spiffs(filename)) {
rdv40_spiffs_append(filename, entry, entry_len, RDV40_SPIFFS_SAFETY_SAFE);
} else {
rdv40_spiffs_write(filename, entry, entry_len, RDV40_SPIFFS_SAFETY_SAFE);
}
#endif
}
void ModInfo(void) {
@ -126,14 +136,16 @@ void ModInfo(void) {
void RunMod(void) {
bool state_change = true;
bool state_change = true, read_ok = false;
int no_words = 0, command = 0;
uint8_t entry[400], state = STATE_SIM;
uint32_t tag[EM4X50_NO_WORDS] = {0x0};
#ifdef WITH_FLASH
rdv40_spiffs_lazy_mount();
#endif
StandAloneMode();
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
Dbprintf(_YELLOW_("Standalone mode THAREXDE started"));
for (;;) {
@ -174,7 +186,8 @@ void RunMod(void) {
Dbprintf("");
Dbprintf(_YELLOW_("switched to EM4x50 simulating mode"));
if (get_input_data_from_file(tag, LF_EM4X50_INPUTFILE_SIM)) {
read_ok = get_input_data_from_file(tag, LF_EM4X50_INPUTFILE_SIM);
if (read_ok) {
Dbprintf(_YELLOW_("tag data ok"));
} else {
Dbprintf(_RED_("error in tag data"));
@ -184,37 +197,32 @@ void RunMod(void) {
em4x50_setup_sim();
gLogin = false;
LED_D_OFF();
gPassword = reflect32(tag[0]);
gWritePasswordProcess = false;
command = EM4X50_COMMAND_STANDARD_READ;
state_change = false;
}
// if no data or read error -> blink
if (read_ok == false) {
LED(LED_A, 200);
SpinDelay(200);
}
em4x50_handle_commands(&command, tag);
// check if new password was found
if (gPassword != reflect32(tag[0])) {
// save password to tag
tag[0] = reflect32(gPassword);
Dbprintf("received password: %08"PRIx32"", gPassword);
// overwrite inputfile in flash memory
// append password to logfile in flash memory
memset(entry, 0, sizeof(entry));
sprintf((char *)entry, "%08"PRIx32"\n", gPassword);
append(LF_EM4X50_LOGFILE_SIM, entry, strlen((char *)entry));
for (int i = 0; i < EM4X50_NO_WORDS; i++) {
sprintf((char *)entry + strlen((char *)entry), "%08"PRIx32"\n", tag[i]);
}
if (exists_in_spiffs(LF_EM4X50_LOGFILE_SIM)) {
rdv40_spiffs_remove(LF_EM4X50_LOGFILE_SIM, RDV40_SPIFFS_SAFETY_SAFE);
}
rdv40_spiffs_write(LF_EM4X50_LOGFILE_SIM, entry, strlen((char *)entry), RDV40_SPIFFS_SAFETY_SAFE);
}
// stop if key (pm3 button or enter key) has been pressed
if (command == PM3_EOPABORTED) {
break;
gPassword = reflect32(tag[0]);
}
// if timeout (e.g. no reader field) continue with standard read
@ -234,7 +242,6 @@ void RunMod(void) {
Dbprintf("");
Dbprintf(_YELLOW_("switched to EM4x50 reading mode\n"));
log_exists = exists_in_spiffs(LF_EM4X50_LOGFILE_COLLECT);
em4x50_setup_read();
state_change = false;
}
@ -264,6 +271,7 @@ void RunMod(void) {
AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; // reset and re-enable timer
}
#ifdef WITH_FLASH
if (state == STATE_READ) {
DownloadLogInstructions(LF_EM4X50_LOGFILE_COLLECT);
} else {
@ -273,6 +281,7 @@ void RunMod(void) {
LED_D_ON();
rdv40_spiffs_lazy_unmount();
LED_D_OFF();
#endif
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();