RfidResearchGroup/proxmark3
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Directly write into eml mem
Infinite loop
This commit is contained in:
Ray Lee 2021-08-14 10:50:28 +08:00
parent 14fb3fb118
commit dd340c60a2
1 changed files with 73 additions and 43 deletions
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116
armsrc/Standalone/hf_mfcsim.c
View file

@ -22,7 +22,7 @@
#include "iso14443a.h"
#include "mifarecmd.h"
#include "crc16.h"
#include "mifaresim.h" // mifare1ksim
#include "mifaresim.h" // mifare1ksim
#include "mifareutil.h"
/*
@ -40,47 +40,49 @@
*
*/
#define HF_MFCSIM_DUMPFILE_SIM "hf_mfcsim_dump_%02d.bin"
#define DUMP_SIZE 1024
#define HF_MFCSIM_DUMPFILE_SIM "hf_mfcsim_dump_%02d.bin"
#define DUMP_SIZE 1024
static char cur_dump_file[22] = {0};
static bool ecfill_from_file(char *dumpfile) {
if (exists_in_spiffs(dumpfile)) {
//check dumpfile size
uint32_t size = size_in_spiffs(dumpfile);
if (size != DUMP_SIZE) {
Dbprintf(_RED_("File Size: %dB The dump file size is incorrect! Only support Mifare Classic 1K! Please check it."));
BigBuf_free();
return false;
}
uint8_t *mem = BigBuf_malloc(size);
if (!mem) {
Dbprintf(_RED_("No memory!"));
return false;
}
//read and load dump file
if (DBGLEVEL >= DBG_INFO) Dbprintf(_YELLOW_("Found dump file %s. Uploading to emulator memory..."), dumpfile);
rdv40_spiffs_read_as_filetype(dumpfile, mem, size, RDV40_SPIFFS_SAFETY_SAFE);
emlClearMem();
emlSetMem(mem, 0, MIFARE_1K_MAXBLOCK);
BigBuf_free_keep_EM();
return true;
} else {
static bool fill_eml_from_file(char *dumpfile){
// check file exist
if (!exists_in_spiffs(dumpfile)){
Dbprintf(_RED_("Dump file %s not found!"), dumpfile);
return false;
}
return false;//Shouldn't be here
//check dumpfile size
uint32_t size = size_in_spiffs(dumpfile);
if (size != DUMP_SIZE){
Dbprintf(_RED_("File Size: %dB The dump file size is incorrect! Only support Mifare Classic 1K! Please check it."));
BigBuf_free();
return false;
}
//read and load dump file
if (DBGLEVEL >= DBG_INFO)
Dbprintf(_YELLOW_("Found dump file %s. Uploading to emulator memory..."), dumpfile);
emlClearMem();
uint8_t *emCARD = BigBuf_get_EM_addr();
rdv40_spiffs_read_as_filetype(dumpfile, emCARD, size, RDV40_SPIFFS_SAFETY_SAFE);
return true;
}
void ModInfo(void) {
static bool write_file_from_eml(char *dumpfile){
if (!exists_in_spiffs(dumpfile)){
Dbprintf(_RED_("Dump file %s not found!"), dumpfile);
return false;
}
uint8_t *emCARD = BigBuf_get_EM_addr();
rdv40_spiffs_write(dumpfile, emCARD, DUMP_SIZE, RDV40_SPIFFS_SAFETY_SAFE);
return true;
}
void ModInfo(void){
DbpString(_YELLOW_(" HF Mifare Classic simulation mode") " - a.k.a MFCSIM");
}
void RunMod(void) {
void RunMod(void)
{
//initializing
StandAloneMode();
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@ -88,29 +90,57 @@ void RunMod(void) {
Dbprintf(_YELLOW_("Standalone mode MFCSIM started!"));
bool flag_has_dumpfile = false;
for (int i = 1; i < 16; i++) {
LED(i, 100);
emlClearMem();
for (int i = 1;; i++)
{
//Exit! usbcommand break
if (data_available()) break;
//Infinite loop
if (i > 15){
if (!flag_has_dumpfile)
break; //still no dump file found
i = 1; //next loop
}
//Indicate which card will be simulated
LED(i, 0);
//Try to load dump form flash
sprintf(cur_dump_file, HF_MFCSIM_DUMPFILE_SIM, i);
Dbprintf(_YELLOW_("[Slot: %d] Try to load dump file: %s"), i, cur_dump_file);
if (!ecfill_from_file(cur_dump_file)) {
if (!fill_eml_from_file(cur_dump_file)){
Dbprintf(_YELLOW_("[Slot: %d] Dump load Failed, Next one!"), i);
LEDsoff();
continue;
}
flag_has_dumpfile = true;
LED(i, 1000);
//Exit! Button hold break
int button_pressed = BUTTON_HELD(500);
if (button_pressed == BUTTON_HOLD){
Dbprintf("Button hold, Break!");
break;
}
//Hope there is enough time to see clearly
SpinDelay(500);
//Start to simulate
Dbprintf(_YELLOW_("[Slot: %d] Simulation start, Press button to change next card."), i);
uint16_t simflags = FLAG_UID_IN_EMUL | FLAG_MF_1K;
Mifare1ksim(simflags, 0, NULL, 0, 0);
Dbprintf(_YELLOW_("[Slot: %d] Simulation end, Change to next card!"), i);
Dbprintf(_YELLOW_("[Slot: %d] Simulation end, Write Back to dump file!"), i);
//Simulation end, Write Back
if (!write_file_from_eml(cur_dump_file)){
Dbprintf(_RED_("[Slot: %d] Write Failed! Anyway, Change to next one!"), i);
continue;
}
Dbprintf(_YELLOW_("[Slot: %d] Write Success! Change to next one!"), i);
}
if(!flag_has_dumpfile) Dbprintf("No dump file found, Exit!");
Dbprintf("Loop end, Exit!");
if (!flag_has_dumpfile)
Dbprintf("No dump file found!");
Dbprintf("Breaked! Exit standalone mode!");
SpinErr(15, 200, 3);
return;
}