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Add a standalone mode to simulate Legic Prime dumps stored on flash
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| //----------------------------------------------------------------------------- | ||
| // Copyright (C) Uli Heilmeier, 2022 | ||
| // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details. | ||
| // Based on hf_mfcsim by Ray Lee | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // See LICENSE.txt for the text of the license. | ||
| //----------------------------------------------------------------------------- | ||
| // main code for legic prime simulator aka LEGICSIM | ||
| //----------------------------------------------------------------------------- | ||
| #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 "legicrf.h" | ||
| #include "legicrfsim.h" | ||
| #include "legic.h" | ||
|
|
||
| /* | ||
| * `hf_legicsim` simulates legic prime MIM1024 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_legicsim_dump_xx.bin). | ||
| * Only support legic prime MIM1024 | ||
| * | ||
| * To upload input file (eml format) to flash: | ||
| * - mem spiffs upload -s <filename> -d hf_legicsim_dump_xx.bin (Notes: xx is form 01 to 15) | ||
| * To delete the input file from flash: | ||
| * - mem spiffs remove -f hf_legicsim_dump_xx.bin (Notes: xx is form 01 to 15) | ||
| * | ||
| */ | ||
|
|
||
| #define HF_LEGICSIM_DUMPFILE_SIM "hf_legicsim_dump_%02d.bin" | ||
| #define DUMP_SIZE 1024 | ||
|
|
||
| static char cur_dump_file[24] = {0}; | ||
|
|
||
| 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; | ||
| } | ||
| //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 Legic Prime MIM1024! Please check it.")); | ||
| BigBuf_free(); | ||
| return false; | ||
| } | ||
| //read and load dump file | ||
| BigBuf_Clear(); | ||
| if (g_dbglevel >= DBG_INFO) | ||
| Dbprintf(_YELLOW_("Found dump file %s. Uploading to emulator memory..."), dumpfile); | ||
| uint8_t *emCARD = BigBuf_get_EM_addr(); | ||
| rdv40_spiffs_read_as_filetype(dumpfile, emCARD, size, RDV40_SPIFFS_SAFETY_SAFE); | ||
| return true; | ||
| } | ||
|
|
||
| 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 Legic Prime simulation mode") " - a.k.a LEGICSIM"); | ||
| } | ||
|
|
||
| void RunMod(void) { | ||
| //initializing | ||
| StandAloneMode(); | ||
| FpgaDownloadAndGo(FPGA_BITSTREAM_HF); | ||
| rdv40_spiffs_lazy_mount(); | ||
| Dbprintf(_YELLOW_("Standalone mode LEGICSIM started!")); | ||
|
|
||
| bool flag_has_dumpfile = false; | ||
| 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_LEGICSIM_DUMPFILE_SIM, i); | ||
| Dbprintf(_YELLOW_("[Slot: %d] Try to load dump file: %s"), i, 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; | ||
|
|
||
| //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); | ||
| LegicRfSimulate(2, false); | ||
| 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!"); | ||
| Dbprintf("Breaked! Exit standalone mode!"); | ||
| SpinErr(15, 200, 3); | ||
| return; | ||
| } |
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