diff --git a/armsrc/Standalone/Makefile.hal b/armsrc/Standalone/Makefile.hal index 2dec4cfde..5c2352aaf 100644 --- a/armsrc/Standalone/Makefile.hal +++ b/armsrc/Standalone/Makefile.hal @@ -41,9 +41,15 @@ define KNOWN_STANDALONE_DEFINITIONS | LF_ICEHID | LF HID collector to flashmem | | (RDV4 only) | | +----------------------------------------------------------+ +| LF_EM4100EMUL | Simulate predefined em4100 tags only | +| | | ++----------------------------------------------------------+ +| LF_EM4100RWC | Read/simulate em4100 tags & clone it | +| | to T555x tags | ++----------------------------------------------------------+ endef -STANDALONE_MODES := LF_SAMYRUN LF_ICERUN LF_PROXBRUTE LF_HIDBRUTE LF_ICEHID +STANDALONE_MODES := LF_SAMYRUN LF_ICERUN LF_PROXBRUTE LF_HIDBRUTE LF_ICEHID LF_EM4100EMUL LF_EM4100RWC STANDALONE_MODES += HF_YOUNG HF_MATTYRUN HF_COLIN HF_BOG HF_14ASNIFF STANDALONE_MODES_REQ_SMARTCARD := STANDALONE_MODES_REQ_FLASH := HF_COLIN HF_BOG HF_14ASNIFF LF_ICEHID diff --git a/armsrc/Standalone/Makefile.inc b/armsrc/Standalone/Makefile.inc index d4de0411e..e5a3304a8 100644 --- a/armsrc/Standalone/Makefile.inc +++ b/armsrc/Standalone/Makefile.inc @@ -40,4 +40,12 @@ endif # WITH_STANDALONE_LF_ICEHID ifneq (,$(findstring WITH_STANDALONE_LF_ICEHID,$(APP_CFLAGS))) SRC_STANDALONE = lf_icehid.c +endif +# WITH_STANDALONE_LF_EM4100EMUL +ifneq (,$(findstring WITH_STANDALONE_LF_EM4100EMUL,$(APP_CFLAGS))) + SRC_STANDALONE = lf_em4100emul.c +endif +# WITH_STANDALONE_LF_EM4100RWC +ifneq (,$(findstring WITH_STANDALONE_LF_EM4100RWC,$(APP_CFLAGS))) + SRC_STANDALONE = lf_em4100rwc.c endif \ No newline at end of file diff --git a/armsrc/Standalone/lf_em4100emul.c b/armsrc/Standalone/lf_em4100emul.c new file mode 100644 index 000000000..f3939f923 --- /dev/null +++ b/armsrc/Standalone/lf_em4100emul.c @@ -0,0 +1,98 @@ +//----------------------------------------------------------------------------- +// Artyom Gnatyuk, 2020 +// +// 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. +//----------------------------------------------------------------------------- +// LF emul - Very simple mode. Simulate only predefined in low[] IDs +// Short click - select next slot and start simulation +//----------------------------------------------------------------------------- +#include "standalone.h" +#include "proxmark3_arm.h" +#include "appmain.h" +#include "fpgaloader.h" +#include "lfops.h" +#include "util.h" +#include "dbprint.h" +#include "ticks.h" +#include "string.h" +#include "BigBuf.h" + +#define MAX_IND 16 // 4 LEDs - 2^4 combinations +#define CLOCK 64 //for 125kHz + +// low & high - array for storage IDs. Its length must be equal. +// Predefined IDs must be stored in low[]. +// In high[] must be nulls +uint64_t low[] = {0x565A1140BE, 0x365A398149, 0x5555555555, 0xFFFFFFFFFF}; +uint32_t high[] = {0, 0, 0, 0}; +uint8_t *bba, slots_count; +int buflen; + +void ModInfo(void) { + DbpString(" LF EM4100 simulator standalone mode"); +} + +uint64_t ReversQuads(uint64_t bits) { + uint64_t result = 0; + for (int i = 0; i < 16; i++) { + result += ((bits >> (60 - 4 * i)) & 0xf) << (4 * i); + } + return result >> 24; +} + +void FillBuff(uint8_t bit) { + memset(bba + buflen, bit, CLOCK / 2); + buflen += (CLOCK / 2); + memset(bba + buflen, bit ^ 1, CLOCK / 2); + buflen += (CLOCK / 2); +} + +void ConstructEM410xEmulBuf(uint64_t id) { + + int i, j, binary[4], parity[4]; + buflen = 0; + for (i = 0; i < 9; i++) + FillBuff(1); + parity[0] = parity[1] = parity[2] = parity[3] = 0; + for (i = 0; i < 10; i++) { + for (j = 3; j >= 0; j--, id /= 2) + binary[j] = id % 2; + for (j = 0; j < 4; j++) + FillBuff(binary[j]); + FillBuff(binary[0] ^ binary[1] ^ binary[2] ^ binary[3]); + for (j = 0; j < 4; j++) + parity[j] ^= binary[j]; + } + for (j = 0; j < 4; j++) + FillBuff(parity[j]); + FillBuff(0); +} + +void LED_Slot(int i) { + LEDsoff(); + if (slots_count > 4) { + LED(i % MAX_IND, 0); //binary indication for slots_count > 4 + } else { + LED(1 << i, 0); //simple indication for slots_count <=4 + } +} + +void RunMod() { + StandAloneMode(); + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + int selected = 0; //selected slot after start + slots_count = sizeof(low) / sizeof(low[0]); + bba = BigBuf_get_addr(); + for (;;) { + WDT_HIT(); + if (data_available()) break; + SpinDelay(100); + SpinUp(100); + LED_Slot(selected); + ConstructEM410xEmulBuf(ReversQuads(low[selected])); + SimulateTagLowFrequency(buflen, 0, true); + selected = (selected + 1) % slots_count; + } +} diff --git a/armsrc/Standalone/lf_em4100rwc.c b/armsrc/Standalone/lf_em4100rwc.c new file mode 100644 index 000000000..a2414a6fa --- /dev/null +++ b/armsrc/Standalone/lf_em4100rwc.c @@ -0,0 +1,202 @@ +//----------------------------------------------------------------------------- +// Artyom Gnatyuk, 2020 +// +// 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. +//----------------------------------------------------------------------------- +// LF rwc - This mode can simulate ID from selected slot, read ID to +// selected slot, write from selected slot to T5555 tag and store +// readed ID to flash (only RDV4). Also you can set predefined IDs +// in any slot. +// To recall stored ID from flash execute: +// mem spifss dump o emdump p +// or: +// mem spifss dump o emdump f emdump +// then from shell: +// hexdump emdump -e '5/1 "%02X" /0 "\n"' +//----------------------------------------------------------------------------- +#include "standalone.h" +#include "proxmark3_arm.h" +#include "appmain.h" +#include "fpgaloader.h" +#include "lfops.h" +#include "util.h" +#include "dbprint.h" +#include "ticks.h" +#include "string.h" +#include "BigBuf.h" +#include "spiffs.h" + +#ifdef WITH_FLASH +#include "flashmem.h" +#endif + +#define MAX_IND 16 // 4 LEDs - 2^4 combinations +#define CLOCK 64 //for 125kHz + +// low & high - array for storage IDs. Its length must be equal. +// Predefined IDs must be stored in low[]. +// In high[] must be nulls +uint64_t low[] = {0x565AF781C7, 0x540053E4E2, 0x1234567890, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +uint32_t high[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +uint8_t *bba, slots_count; +int buflen; + +void ModInfo(void) { + DbpString(" LF EM4100 read/write/clone mode"); +} + +uint64_t ReversQuads(uint64_t bits) { + uint64_t result = 0; + for (int i = 0; i < 16; i++) { + result += ((bits >> (60 - 4 * i)) & 0xf) << (4 * i); + } + return result >> 24; +} + +void FillBuff(uint8_t bit) { + memset(bba + buflen, bit, CLOCK / 2); + buflen += (CLOCK / 2); + memset(bba + buflen, bit ^ 1, CLOCK / 2); + buflen += (CLOCK / 2); +} + +void ConstructEM410xEmulBuf(uint64_t id) { + + int i, j, binary[4], parity[4]; + buflen = 0; + for (i = 0; i < 9; i++) + FillBuff(1); + parity[0] = parity[1] = parity[2] = parity[3] = 0; + for (i = 0; i < 10; i++) { + for (j = 3; j >= 0; j--, id /= 2) + binary[j] = id % 2; + for (j = 0; j < 4; j++) + FillBuff(binary[j]); + FillBuff(binary[0] ^ binary[1] ^ binary[2] ^ binary[3]); + for (j = 0; j < 4; j++) + parity[j] ^= binary[j]; + } + for (j = 0; j < 4; j++) + FillBuff(parity[j]); + FillBuff(0); +} + +void LED_Slot(int i) { + LEDsoff(); + if (slots_count > 4) { + LED(i % MAX_IND, 0); //binary indication, usefully for slots_count > 4 + } else { + LED(1 << i, 0); //simple indication for slots_count <=4 + } +} + +void FlashLEDs(uint32_t speed, uint8_t times) { + for (int i = 0; i < times * 2; i++) { + LED_A_INV(); + LED_B_INV(); + LED_C_INV(); + LED_D_INV(); + SpinDelay(speed); + } +} + +#ifdef WITH_FLASH +void SaveIDtoFlash(int addr, uint64_t id) { + uint8_t bt[5]; + char *filename = "emdump"; + rdv40_spiffs_mount(); + for (int i = 0; i < 5; i++) { + bt[4 - i] = (uint8_t)(id >> 8 * i & 0xff); + } + if (exists_in_spiffs(filename) == false) { + rdv40_spiffs_write(filename, &bt[0], 5, RDV40_SPIFFS_SAFETY_NORMAL); + } else { + rdv40_spiffs_append(filename, &bt[0], 5, RDV40_SPIFFS_SAFETY_NORMAL); + } +} +#endif + +void RunMod() { + StandAloneMode(); + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + int selected = 0; + //state 0 - select slot + // 1 - read tag to selected slot, + // 2 - simulate tag from selected slot + // 3 - write to T5555 tag + uint8_t state = 0; + slots_count = sizeof(low) / sizeof(low[0]); + bba = BigBuf_get_addr(); + LED_Slot(selected); + for (;;) { + WDT_HIT(); + if (data_available()) break; + int button_pressed = BUTTON_HELD(1000); + SpinDelay(300); + switch (state) { + case 0: + // Select mode + if (button_pressed == 1) { + // Long press - switch to simulate mode + SpinUp(100); + LED_Slot(selected); + state = 2; + } else if (button_pressed < 0) { + // Click - switch to next slot + selected = (selected + 1) % slots_count; + LED_Slot(selected); + } + break; + case 1: + // Read mode. + if (button_pressed > 0) { + // Long press - switch to read mode + SpinUp(100); + LED_Slot(selected); + state = 3; + } else if (button_pressed < 0) { + // Click - exit to select mode + CmdEM410xdemod(1, &high[selected], &low[selected], 0); + FlashLEDs(100, 5); +#ifdef WITH_FLASH + SaveIDtoFlash(selected, low[selected]); +#endif + state = 0; + } + break; + case 2: + // Simulate mode + if (button_pressed > 0) { + // Long press - switch to read mode + SpinDown(100); + LED_Slot(selected); + state = 1; + } else if (button_pressed < 0) { + // Click - start simulating. Click again to exit from simulate mode + LED_Slot(selected); + ConstructEM410xEmulBuf(ReversQuads(low[selected])); + FlashLEDs(100, 5); + SimulateTagLowFrequency(buflen, 0, 1); + LED_Slot(selected); + state = 0; // Switch to select mode + } + break; + case 3: + // Write tag mode + if (button_pressed > 0) { + // Long press - switch to select mode + SpinDown(100); + LED_Slot(selected); + state = 0; + } else if (button_pressed < 0) { + // Click - write ID to tag + WriteEM410x(0, (uint32_t)(low[selected] >> 32), (uint32_t)(low[selected] & 0xffffffff)); + LED_Slot(selected); + state = 0; // Switch to select mode + } + break; + } + } +}