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fixes to mode

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This commit is contained in:
iceman1001 2020-07-15 11:34:14 +02:00
commit 8d5315b6af
2 changed files with 107 additions and 26 deletions
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132
armsrc/Standalone/hf_iceclass.c
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@ -26,10 +26,15 @@
#define HF_ICLASS_FULLSIM_MOD_EML HF_ICLASS_FULLSIM_MOD".eml"
#define HF_ICLASS_ATTACK_BIN "iclass_mac_attack.bin"
#define ICE_STATE_NONE 0
#define ICE_STATE_FULLSIM 1
#define ICE_STATE_ATTACK 2
#define ICE_STATE_READER 3
#define HF_ICLASS_CC_A "iceclass_cc_a.bin"
#define HF_ICLASS_CC_B "iceclass_cc_b.bin"
char* cc_files[] = { HF_ICLASS_CC_A, HF_ICLASS_CC_B };
#define ICE_STATE_NONE 0
#define ICE_STATE_FULLSIM 1
#define ICE_STATE_ATTACK 2
#define ICE_STATE_READER 3
#define ICE_STATE_CONFIGCARD 4
typedef struct {
uint8_t app_limit; //[8]
@ -130,28 +135,23 @@ static void save_to_flash(uint8_t *data, uint16_t datalen) {
static int fullsim_mode(void) {
rdv40_spiffs_lazy_mount();
// Look for a dump file in FLASH MEM.
if (exists_in_spiffs(HF_ICLASS_FULLSIM_ORIG_BIN) == false) {
Dbprintf("error, '" _YELLOW_(HF_ICLASS_FULLSIM_ORIG_BIN) "' file missing");
return PM3_EIO;
}
SpinOff(0);
uint8_t *emul = BigBuf_get_EM_addr();
uint32_t fsize = size_in_spiffs(HF_ICLASS_FULLSIM_ORIG_BIN);
int res = rdv40_spiffs_read_as_filetype(HF_ICLASS_FULLSIM_ORIG_BIN, emul, fsize, RDV40_SPIFFS_SAFETY_SAFE);
rdv40_spiffs_lazy_unmount();
Dbprintf("Found `" _YELLOW_(HF_ICLASS_FULLSIM_ORIG_BIN) "` , loaded %u bytes to emulator memory", fsize);
if (res == SPIFFS_OK) {
Dbprintf("loaded '" _YELLOW_(HF_ICLASS_FULLSIM_ORIG_BIN) "' (%u bytes) to emulator memory", fsize);
}
// create diversified key if not in dump.
if ( memcmp(emul + (3 * 8), "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF", 8) == 0) {
// create diversified key if not in dump.
uint8_t ccnr[12] = {0};
memcpy(ccnr, emul + (2 * 8), 8);
bool use_elite = false;
iclass_calc_div_key(emul, legacy_aa1_key, emul + (3 * 8), use_elite);
// Dbhexdump(8, emul + (3 * 8), false);
}
iclass_simulate(ICLASS_SIM_MODE_FULL, 0 , false, NULL, NULL, NULL);
@ -161,7 +161,7 @@ static int fullsim_mode(void) {
res = rdv40_spiffs_write(HF_ICLASS_FULLSIM_MOD_BIN, emul, fsize, RDV40_SPIFFS_SAFETY_SAFE);
rdv40_spiffs_lazy_unmount();
LED_B_OFF();
if (res != 0) {
if (res != SPIFFS_OK) {
Dbprintf("error writing '"HF_ICLASS_FULLSIM_MOD_BIN"' to flash ( %d )", res);
}
@ -177,13 +177,36 @@ static int reader_attack_mode(void) {
iclass_simulate(ICLASS_SIM_MODE_READER_ATTACK, NUM_CSNS, false, csns, mac_responses, &mac_response_len);
if (mac_response_len > 0) {
bool success = (mac_response_len == MAC_RESPONSES_SIZE);
uint8_t num_mac = (mac_response_len >> 4);
Dbprintf("%u out of %d MAC obtained [%s]", num_mac, NUM_CSNS, (success) ? _GREEN_("OK") : _RED_("FAIL"));
size_t dumplen = NUM_CSNS * 24;
uint8_t *dump = BigBuf_malloc(dumplen);
if (dump == false) {
Dbprintf("failed to allocate memory");
return PM3_EMALLOC;
}
memset(dump, 0, dumplen);//<-- Need zeroes for the EPURSE - field
for (uint8_t i = 0 ; i < NUM_CSNS ; i++) {
//copy CSN
memcpy(dump + (i * 24), csns + (i * 8), 8);
//copy epurse
memcpy(dump + (i * 24) + 8, mac_responses + (i * 16), 8);
// NR_MAC (eight bytes from the response) ( 8b csn + 8b epurse == 16)
memcpy(dump + (i * 24) + 16, mac_responses + (i * 16) + 8, 8);
}
LED_B_ON();
rdv40_spiffs_lazy_mount();
int res = rdv40_spiffs_write(HF_ICLASS_ATTACK_BIN, mac_responses, mac_response_len, RDV40_SPIFFS_SAFETY_SAFE);
int res = rdv40_spiffs_write(HF_ICLASS_ATTACK_BIN, dump, dumplen, RDV40_SPIFFS_SAFETY_SAFE);
rdv40_spiffs_lazy_unmount();
LED_B_OFF();
if (res != 0) {
if (res != SPIFFS_OK) {
Dbprintf("error writing '"HF_ICLASS_ATTACK_BIN"' to flash ( %d )", res);
}
}
@ -272,6 +295,29 @@ static int reader_dump_mode(void) {
return PM3_SUCCESS;
}
static int config_sim_mode(void) {
uint8_t *emul = BigBuf_get_EM_addr();
for (uint8_t i = 0; i < 2; i++) {
SpinOff(0);
uint32_t fsize = size_in_spiffs(cc_files[i]);
rdv40_spiffs_lazy_mount();
int res = rdv40_spiffs_read_as_filetype(cc_files[i], emul, fsize, RDV40_SPIFFS_SAFETY_SAFE);
rdv40_spiffs_lazy_unmount();
if (res == SPIFFS_OK) {
Dbprintf("loaded '" _YELLOW_("%s") "' (%u bytes) to emulator memory", cc_files[i], fsize);
}
iclass_simulate(ICLASS_SIM_MODE_FULL, 0 , false, NULL, NULL, NULL);
}
rdv40_spiffs_lazy_unmount();
return PM3_SUCCESS;
}
void ModInfo(void) {
DbpString(" HF iCLASS mode - aka iceCLASS (iceman)");
}
@ -284,28 +330,45 @@ void RunMod(void) {
StandAloneMode();
Dbprintf(_YELLOW_("HF iCLASS mode a.k.a iceCLASS started"));
uint8_t mode = ICE_STATE_READER;
uint8_t mode = ICE_STATE_ATTACK;
for (;;) {
WDT_HIT();
if (mode == ICE_STATE_NONE) break;
if (data_available()) break;
/*
// Was our button held down or pressed?
int button_pressed = BUTTON_HELD(1000);
if (button_pressed != BUTTON_NO_CLICK) {
break;
}
*/
int res;
switch (mode) {
case ICE_STATE_FULLSIM: {
Dbprintf("enter full simulation mode");
res = fullsim_mode();
if (res == PM3_SUCCESS)
download_instructions(mode);
// Look for iCLASS dump file
rdv40_spiffs_lazy_mount();
if (exists_in_spiffs(HF_ICLASS_FULLSIM_ORIG_BIN) == false) {
Dbprintf("error, '" _YELLOW_(HF_ICLASS_FULLSIM_ORIG_BIN) "' file missing");
mode = ICE_STATE_NONE;
}
rdv40_spiffs_lazy_unmount();
switch_off();
if (mode == ICE_STATE_FULLSIM) {
res = fullsim_mode();
if (res == PM3_SUCCESS) {
download_instructions(mode);
}
}
// the button press to exit sim, is captured in main loop here
mode = ICE_STATE_NONE;
break;
}
case ICE_STATE_ATTACK: {
@ -315,7 +378,6 @@ void RunMod(void) {
download_instructions(mode);
mode = ICE_STATE_NONE;
switch_off();
break;
}
case ICE_STATE_READER: {
@ -325,12 +387,30 @@ void RunMod(void) {
download_instructions(mode);
mode = ICE_STATE_NONE;
switch_off();
break;
}
case ICE_STATE_CONFIGCARD: {
Dbprintf("enter config card simulation mode");
// Look for config cards
rdv40_spiffs_lazy_mount();
for (uint8_t i =0; i < 2; i++) {
if (exists_in_spiffs(cc_files[i]) == false) {
Dbprintf("error, '" _YELLOW_("%s") "' file missing", cc_files[i]);
mode = ICE_STATE_NONE;
}
}
rdv40_spiffs_lazy_unmount();
if (mode == ICE_STATE_CONFIGCARD)
config_sim_mode();
mode = ICE_STATE_NONE;
break;
}
}
}
LEDsoff();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
switch_off();
Dbprintf("-=[ exit iceCLASS ]=-");
}