add new standalone mode MFCSIM

2025-08-21 13:53:55 -07:00 · 2021-08-07 22:19:08 +08:00 · 2021-08-07 22:19:08 +08:00 · 6fae3b7b0e
commit 6fae3b7b0e
parent 085aa819dc
3 changed files with 125 additions and 2 deletions
--- a/armsrc/Standalone/hf_mfcsim.c
+++ b/armsrc/Standalone/hf_mfcsim.c
@ -0,0 +1,116 @@
+//-----------------------------------------------------------------------------
+// RayCN, 2021
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// main code for mifare classic simulator aka MFCSIM
+//-----------------------------------------------------------------------------
+#include <inttypes.h>
+#include "ticks.h"
+#include "proxmark3_arm.h"
+#include "BigBuf.h"
+#include "commonutil.h"
+#include "fpgaloader.h"
+#include "util.h"
+#include "dbprint.h"
+#include "spiffs.h"
+#include "standalone.h" // standalone definitions
+#include "appmain.h"
+#include "string.h"
+#include "iso14443a.h"
+#include "mifarecmd.h"
+#include "crc16.h"
+#include "mifaresim.h"  // mifare1ksim
+#include "mifareutil.h"
+
+/*
+ * `hf_mfcsim` simulates mifare classic 1k dumps uploaded to flash.
+ * It requires RDV4 hardware (for flash and battery).
+ *
+ * On entering stand-alone mode, this module will start simulating.
+ * Data is read from bin dump file uploaded to flash memory (hf_mfcsim_dump_1.bin).
+ * Only support mifare classic 1k
+ *
+ * LEDs:
+ * - LED A: initializing
+ * - LED B: simulating
+ * - LED C blinking: data transmiting
+ *
+ * To upload input file (eml format) to flash:
+ * - mem spiffs upload -s <filename> -d hf_mfcsim_dump_1.bin
+ * To delete the input file from flash:
+ * - mem spiffs remove -f hf_mfcsim_dump_1.bin
+ *
+ */
+
+#define HF_MFCSIM_INPUTFILE_SIM         "hf_mfcsim_dump_1.bin"
+#define DUMP_SIZE                       1024
+
+static uint8_t uid[10];
+
+static bool ecfill_from_file(char *inputfile) {
+
+    if (exists_in_spiffs(inputfile)) {
+
+        uint32_t size = size_in_spiffs(inputfile);
+        uint8_t *mem = BigBuf_malloc(size);
+        if (!mem) {
+            Dbprintf(_RED_("No memory！"));
+        }
+
+        Dbprintf(_YELLOW_("Found dump file %s"), inputfile);
+        rdv40_spiffs_read_as_filetype(inputfile, mem, size, RDV40_SPIFFS_SAFETY_SAFE);
+
+        Dbprintf(_YELLOW_("File size is %d"), size);
+        if (size != DUMP_SIZE) {
+            Dbprintf(_RED_("Only support Mifare Classic 1K! Please check the dumpfile"));
+        }
+
+        Dbprintf(_YELLOW_("Read card data from input file"));
+        emlSetMem(mem, 0, MIFARE_1K_MAXBLOCK);
+        Dbprintf(_YELLOW_("Uploaded to emulator memory"));
+
+    } else {
+        Dbprintf(_RED_("no input file %s"), inputfile);
+        return false;
+    }
+    BigBuf_free();
+    return true;
+}
+
+void ModInfo(void) {
+    DbpString(_YELLOW_("  HF Mifare Classic simulation mode") " - a.k.a MFCSIM");
+}
+
+void RunMod(void) {
+    StandAloneMode();
+    FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+    Dbprintf(_YELLOW_("Standalone mode MFCSIM started!"));
+
+    LED_A_ON();
+    emlClearMem();
+    Dbprintf(_YELLOW_("Emulator memory initialized"));
+    rdv40_spiffs_lazy_mount();
+    if (!ecfill_from_file(HF_MFCSIM_INPUTFILE_SIM)) {
+        Dbprintf(_RED_("Load data failed!"));
+        return;
+    }
+    Dbprintf(_YELLOW_("Emulator memory filled, simulation ready to start."));
+    Dbprintf(_YELLOW_("Press button to abort simulation at anytime."));
+
+    SpinOff(1000);
+
+    LED_B_ON();
+    Dbprintf(_YELLOW_("Simulation start!"));
+    uint16_t simflags = FLAG_UID_IN_EMUL | FLAG_MF_1K;
+    Mifare1ksim(simflags, 0, uid, 0, 0);
+
+    Dbprintf(_YELLOW_("Simulation end!"));
+    LEDsoff();
+}
+
+
+
+