DarkFlippers/unleashed-firmware
1
1
Fork 0
mirror of https://github.com/DarkFlippers/unleashed-firmware.git synced 2024-12-22 04:41:36 +03:00
Code Issues Projects Releases Wiki Activity
6b70e37ae3
unleashed-firmware/applications/external/picopass/picopass_worker.c
MX ae3481ef6c
Merge branch 'fz-dev' into dev
2023-03-28 22:44:35 +03:00

749 lines
24 KiB
C
Raw Blame History

#include "picopass_worker_i.h"
#include <flipper_format/flipper_format.h>
#define TAG "PicopassWorker"
static void picopass_worker_enable_field() {
furi_hal_nfc_ll_txrx_on();
furi_hal_nfc_exit_sleep();
furi_hal_nfc_ll_poll();
}
static ReturnCode picopass_worker_disable_field(ReturnCode rc) {
furi_hal_nfc_ll_txrx_off();
furi_hal_nfc_start_sleep();
return rc;
}
/***************************** Picopass Worker API *******************************/
PicopassWorker* picopass_worker_alloc() {
PicopassWorker* picopass_worker = malloc(sizeof(PicopassWorker));
// Worker thread attributes
picopass_worker->thread =
furi_thread_alloc_ex("PicopassWorker", 8 * 1024, picopass_worker_task, picopass_worker);
picopass_worker->callback = NULL;
picopass_worker->context = NULL;
picopass_worker->storage = furi_record_open(RECORD_STORAGE);
picopass_worker_change_state(picopass_worker, PicopassWorkerStateReady);
return picopass_worker;
}
void picopass_worker_free(PicopassWorker* picopass_worker) {
furi_assert(picopass_worker);
furi_thread_free(picopass_worker->thread);
furi_record_close(RECORD_STORAGE);
free(picopass_worker);
}
PicopassWorkerState picopass_worker_get_state(PicopassWorker* picopass_worker) {
return picopass_worker->state;
}
void picopass_worker_start(
PicopassWorker* picopass_worker,
PicopassWorkerState state,
PicopassDeviceData* dev_data,
PicopassWorkerCallback callback,
void* context) {
furi_assert(picopass_worker);
furi_assert(dev_data);
picopass_worker->callback = callback;
picopass_worker->context = context;
picopass_worker->dev_data = dev_data;
picopass_worker_change_state(picopass_worker, state);
furi_thread_start(picopass_worker->thread);
}
void picopass_worker_stop(PicopassWorker* picopass_worker) {
furi_assert(picopass_worker);
furi_assert(picopass_worker->thread);
if(furi_thread_get_state(picopass_worker->thread) != FuriThreadStateStopped) {
picopass_worker_change_state(picopass_worker, PicopassWorkerStateStop);
furi_thread_join(picopass_worker->thread);
}
}
void picopass_worker_change_state(PicopassWorker* picopass_worker, PicopassWorkerState state) {
picopass_worker->state = state;
}
/***************************** Picopass Worker Thread *******************************/
ReturnCode picopass_detect_card(int timeout) {
UNUSED(timeout);
ReturnCode err;
err = rfalPicoPassPollerInitialize();
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerInitialize error %d", err);
return err;
}
err = rfalFieldOnAndStartGT();
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalFieldOnAndStartGT error %d", err);
return err;
}
err = rfalPicoPassPollerCheckPresence();
if(err != ERR_RF_COLLISION) {
//FURI_LOG_E(TAG, "rfalPicoPassPollerCheckPresence error %d", err);
return err;
}
return ERR_NONE;
}
ReturnCode picopass_read_preauth(PicopassBlock* AA1) {
rfalPicoPassIdentifyRes idRes;
rfalPicoPassSelectRes selRes;
ReturnCode err;
err = rfalPicoPassPollerIdentify(&idRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerIdentify error %d", err);
return err;
}
err = rfalPicoPassPollerSelect(idRes.CSN, &selRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerSelect error %d", err);
return err;
}
memcpy(AA1[PICOPASS_CSN_BLOCK_INDEX].data, selRes.CSN, sizeof(selRes.CSN));
FURI_LOG_D(
TAG,
"csn %02x%02x%02x%02x%02x%02x%02x%02x",
AA1[PICOPASS_CSN_BLOCK_INDEX].data[0],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[1],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[2],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[3],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[4],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[5],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[6],
AA1[PICOPASS_CSN_BLOCK_INDEX].data[7]);
rfalPicoPassReadBlockRes cfg = {0};
rfalPicoPassPollerReadBlock(PICOPASS_CONFIG_BLOCK_INDEX, &cfg);
memcpy(AA1[PICOPASS_CONFIG_BLOCK_INDEX].data, cfg.data, sizeof(cfg.data));
FURI_LOG_D(
TAG,
"config %02x%02x%02x%02x%02x%02x%02x%02x",
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[0],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[1],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[2],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[3],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[4],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[5],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[6],
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[7]);
rfalPicoPassReadBlockRes aia;
rfalPicoPassPollerReadBlock(PICOPASS_AIA_BLOCK_INDEX, &aia);
memcpy(AA1[PICOPASS_AIA_BLOCK_INDEX].data, aia.data, sizeof(aia.data));
FURI_LOG_D(
TAG,
"aia %02x%02x%02x%02x%02x%02x%02x%02x",
AA1[PICOPASS_AIA_BLOCK_INDEX].data[0],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[1],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[2],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[3],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[4],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[5],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[6],
AA1[PICOPASS_AIA_BLOCK_INDEX].data[7]);
return ERR_NONE;
}
static ReturnCode
picopass_auth_dict(PicopassWorker* picopass_worker, IclassEliteDictType dict_type) {
rfalPicoPassReadCheckRes rcRes;
rfalPicoPassCheckRes chkRes;
bool elite = (dict_type != IclassStandardDictTypeFlipper);
PicopassDeviceData* dev_data = picopass_worker->dev_data;
PicopassBlock* AA1 = dev_data->AA1;
PicopassPacs* pacs = &dev_data->pacs;
uint8_t* csn = AA1[PICOPASS_CSN_BLOCK_INDEX].data;
uint8_t* div_key = AA1[PICOPASS_KD_BLOCK_INDEX].data;
ReturnCode err = ERR_PARAM;
uint8_t mac[4] = {0};
uint8_t ccnr[12] = {0};
size_t index = 0;
uint8_t key[PICOPASS_BLOCK_LEN] = {0};
if(!iclass_elite_dict_check_presence(dict_type)) {
FURI_LOG_E(TAG, "Dictionary not found");
return ERR_PARAM;
}
IclassEliteDict* dict = iclass_elite_dict_alloc(dict_type);
if(!dict) {
FURI_LOG_E(TAG, "Dictionary not allocated");
return ERR_PARAM;
}
FURI_LOG_D(TAG, "Loaded %lu keys", iclass_elite_dict_get_total_keys(dict));
while(iclass_elite_dict_get_next_key(dict, key)) {
FURI_LOG_D(
TAG,
"Try to %s auth with key %zu %02x%02x%02x%02x%02x%02x%02x%02x",
elite ? "elite" : "standard",
index++,
key[0],
key[1],
key[2],
key[3],
key[4],
key[5],
key[6],
key[7]);
err = rfalPicoPassPollerReadCheck(&rcRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerReadCheck error %d", err);
break;
}
memcpy(ccnr, rcRes.CCNR, sizeof(rcRes.CCNR)); // last 4 bytes left 0
loclass_iclass_calc_div_key(csn, key, div_key, elite);
loclass_opt_doReaderMAC(ccnr, div_key, mac);
err = rfalPicoPassPollerCheck(mac, &chkRes);
if(err == ERR_NONE) {
memcpy(pacs->key, key, PICOPASS_BLOCK_LEN);
break;
}
if(picopass_worker->state != PicopassWorkerStateDetect) break;
}
iclass_elite_dict_free(dict);
return err;
}
ReturnCode picopass_auth(PicopassWorker* picopass_worker) {
ReturnCode err;
FURI_LOG_I(TAG, "Starting system dictionary attack [Standard KDF]");
err = picopass_auth_dict(picopass_worker, IclassStandardDictTypeFlipper);
if(err == ERR_NONE) {
return ERR_NONE;
}
FURI_LOG_I(TAG, "Starting user dictionary attack [Elite KDF]");
err = picopass_auth_dict(picopass_worker, IclassEliteDictTypeUser);
if(err == ERR_NONE) {
return ERR_NONE;
}
FURI_LOG_I(TAG, "Starting system dictionary attack [Elite KDF]");
err = picopass_auth_dict(picopass_worker, IclassEliteDictTypeFlipper);
if(err == ERR_NONE) {
return ERR_NONE;
}
return err;
}
ReturnCode picopass_read_card(PicopassBlock* AA1) {
ReturnCode err;
size_t app_limit = AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[0] < PICOPASS_MAX_APP_LIMIT ?
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[0] :
PICOPASS_MAX_APP_LIMIT;
for(size_t i = 2; i < app_limit; i++) {
if(i == PICOPASS_KD_BLOCK_INDEX) {
// Skip over Kd block which is populated earlier (READ of Kd returns all FF's)
continue;
}
rfalPicoPassReadBlockRes block;
err = rfalPicoPassPollerReadBlock(i, &block);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerReadBlock error %d", err);
return err;
}
FURI_LOG_D(
TAG,
"rfalPicoPassPollerReadBlock %d %02x%02x%02x%02x%02x%02x%02x%02x",
i,
block.data[0],
block.data[1],
block.data[2],
block.data[3],
block.data[4],
block.data[5],
block.data[6],
block.data[7]);
memcpy(AA1[i].data, block.data, sizeof(block.data));
}
return ERR_NONE;
}
ReturnCode picopass_write_card(PicopassBlock* AA1) {
rfalPicoPassIdentifyRes idRes;
rfalPicoPassSelectRes selRes;
rfalPicoPassReadCheckRes rcRes;
rfalPicoPassCheckRes chkRes;
ReturnCode err;
uint8_t div_key[8] = {0};
uint8_t mac[4] = {0};
uint8_t ccnr[12] = {0};
err = rfalPicoPassPollerIdentify(&idRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerIdentify error %d", err);
return err;
}
err = rfalPicoPassPollerSelect(idRes.CSN, &selRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerSelect error %d", err);
return err;
}
err = rfalPicoPassPollerReadCheck(&rcRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerReadCheck error %d", err);
return err;
}
memcpy(ccnr, rcRes.CCNR, sizeof(rcRes.CCNR)); // last 4 bytes left 0
loclass_iclass_calc_div_key(selRes.CSN, (uint8_t*)picopass_iclass_key, div_key, false);
loclass_opt_doReaderMAC(ccnr, div_key, mac);
err = rfalPicoPassPollerCheck(mac, &chkRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerCheck error %d", err);
return err;
}
for(size_t i = 6; i < 10; i++) {
FURI_LOG_D(TAG, "rfalPicoPassPollerWriteBlock %d", i);
uint8_t data[9] = {0};
data[0] = i;
memcpy(data + 1, AA1[i].data, RFAL_PICOPASS_MAX_BLOCK_LEN);
loclass_doMAC_N(data, sizeof(data), div_key, mac);
FURI_LOG_D(
TAG,
"loclass_doMAC_N %d %02x%02x%02x%02x%02x%02x%02x%02x %02x%02x%02x%02x",
i,
data[1],
data[2],
data[3],
data[4],
data[5],
data[6],
data[7],
data[8],
mac[0],
mac[1],
mac[2],
mac[3]);
err = rfalPicoPassPollerWriteBlock(i, AA1[i].data, mac);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerWriteBlock error %d", err);
return err;
}
}
return ERR_NONE;
}
ReturnCode picopass_write_block(PicopassBlock* AA1, uint8_t blockNo, uint8_t* newBlock) {
rfalPicoPassIdentifyRes idRes;
rfalPicoPassSelectRes selRes;
rfalPicoPassReadCheckRes rcRes;
rfalPicoPassCheckRes chkRes;
ReturnCode err;
uint8_t mac[4] = {0};
uint8_t ccnr[12] = {0};
err = rfalPicoPassPollerIdentify(&idRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerIdentify error %d", err);
return err;
}
err = rfalPicoPassPollerSelect(idRes.CSN, &selRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerSelect error %d", err);
return err;
}
err = rfalPicoPassPollerReadCheck(&rcRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerReadCheck error %d", err);
return err;
}
memcpy(ccnr, rcRes.CCNR, sizeof(rcRes.CCNR)); // last 4 bytes left 0
if(memcmp(selRes.CSN, AA1[PICOPASS_CSN_BLOCK_INDEX].data, PICOPASS_BLOCK_LEN) != 0) {
FURI_LOG_E(TAG, "Wrong CSN for write");
return ERR_REQUEST;
}
loclass_opt_doReaderMAC(ccnr, AA1[PICOPASS_KD_BLOCK_INDEX].data, mac);
err = rfalPicoPassPollerCheck(mac, &chkRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerCheck error %d", err);
return err;
}
FURI_LOG_D(TAG, "rfalPicoPassPollerWriteBlock %d", blockNo);
uint8_t data[9] = {
blockNo,
newBlock[0],
newBlock[1],
newBlock[2],
newBlock[3],
newBlock[4],
newBlock[5],
newBlock[6],
newBlock[7]};
loclass_doMAC_N(data, sizeof(data), AA1[PICOPASS_KD_BLOCK_INDEX].data, mac);
FURI_LOG_D(
TAG,
"loclass_doMAC_N %d %02x%02x%02x%02x%02x%02x%02x%02x %02x%02x%02x%02x",
blockNo,
data[1],
data[2],
data[3],
data[4],
data[5],
data[6],
data[7],
data[8],
mac[0],
mac[1],
mac[2],
mac[3]);
err = rfalPicoPassPollerWriteBlock(data[0], data + 1, mac);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerWriteBlock error %d", err);
return err;
}
return ERR_NONE;
}
void picopass_worker_elite_dict_attack(PicopassWorker* picopass_worker) {
furi_assert(picopass_worker);
furi_assert(picopass_worker->callback);
picopass_device_data_clear(picopass_worker->dev_data);
PicopassDeviceData* dev_data = picopass_worker->dev_data;
PicopassBlock* AA1 = dev_data->AA1;
PicopassPacs* pacs = &dev_data->pacs;
for(size_t i = 0; i < PICOPASS_MAX_APP_LIMIT; i++) {
memset(AA1[i].data, 0, sizeof(AA1[i].data));
}
memset(pacs, 0, sizeof(PicopassPacs));
IclassEliteDictAttackData* dict_attack_data =
&picopass_worker->dev_data->iclass_elite_dict_attack_data;
bool elite = (dict_attack_data->type != IclassStandardDictTypeFlipper);
rfalPicoPassReadCheckRes rcRes;
rfalPicoPassCheckRes chkRes;
ReturnCode err;
uint8_t mac[4] = {0};
uint8_t ccnr[12] = {0};
size_t index = 0;
uint8_t key[PICOPASS_BLOCK_LEN] = {0};
// Load dictionary
IclassEliteDict* dict = dict_attack_data->dict;
if(!dict) {
FURI_LOG_E(TAG, "Dictionary not found");
picopass_worker->callback(PicopassWorkerEventNoDictFound, picopass_worker->context);
return;
}
do {
if(picopass_detect_card(1000) == ERR_NONE) {
picopass_worker->callback(PicopassWorkerEventCardDetected, picopass_worker->context);
// Process first found device
err = picopass_read_preauth(AA1);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_read_preauth error %d", err);
picopass_worker->callback(PicopassWorkerEventAborted, picopass_worker->context);
return;
}
// Thank you proxmark!
pacs->legacy = picopass_is_memset(AA1[5].data, 0xFF, 8);
pacs->se_enabled = (memcmp(AA1[5].data, "\xff\xff\xff\x00\x06\xff\xff\xff", 8) == 0);
if(pacs->se_enabled) {
FURI_LOG_D(TAG, "SE enabled");
picopass_worker->callback(PicopassWorkerEventAborted, picopass_worker->context);
return;
}
break;
} else {
picopass_worker->callback(PicopassWorkerEventNoCardDetected, picopass_worker->context);
}
if(picopass_worker->state != PicopassWorkerStateEliteDictAttack) break;
furi_delay_ms(100);
} while(true);
FURI_LOG_D(
TAG, "Start Dictionary attack, Key Count %lu", iclass_elite_dict_get_total_keys(dict));
while(iclass_elite_dict_get_next_key(dict, key)) {
FURI_LOG_T(TAG, "Key %zu", index);
if(++index % PICOPASS_DICT_KEY_BATCH_SIZE == 0) {
picopass_worker->callback(
PicopassWorkerEventNewDictKeyBatch, picopass_worker->context);
}
err = rfalPicoPassPollerReadCheck(&rcRes);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "rfalPicoPassPollerReadCheck error %d", err);
break;
}
memcpy(ccnr, rcRes.CCNR, sizeof(rcRes.CCNR)); // last 4 bytes left 0
uint8_t* csn = AA1[PICOPASS_CSN_BLOCK_INDEX].data;
uint8_t* div_key = AA1[PICOPASS_KD_BLOCK_INDEX].data;
loclass_iclass_calc_div_key(csn, key, div_key, elite);
loclass_opt_doReaderMAC(ccnr, div_key, mac);
err = rfalPicoPassPollerCheck(mac, &chkRes);
if(err == ERR_NONE) {
FURI_LOG_I(TAG, "Found key");
memcpy(pacs->key, key, PICOPASS_BLOCK_LEN);
err = picopass_read_card(AA1);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_read_card error %d", err);
picopass_worker->callback(PicopassWorkerEventFail, picopass_worker->context);
break;
}
err = picopass_device_parse_credential(AA1, pacs);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_device_parse_credential error %d", err);
picopass_worker->callback(PicopassWorkerEventFail, picopass_worker->context);
break;
}
err = picopass_device_parse_wiegand(pacs->credential, &pacs->record);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_device_parse_wiegand error %d", err);
picopass_worker->callback(PicopassWorkerEventFail, picopass_worker->context);
break;
}
picopass_worker->callback(PicopassWorkerEventSuccess, picopass_worker->context);
break;
}
if(picopass_worker->state != PicopassWorkerStateEliteDictAttack) break;
}
FURI_LOG_D(TAG, "Dictionary complete");
if(picopass_worker->state == PicopassWorkerStateEliteDictAttack) {
picopass_worker->callback(PicopassWorkerEventSuccess, picopass_worker->context);
} else {
picopass_worker->callback(PicopassWorkerEventAborted, picopass_worker->context);
}
}
int32_t picopass_worker_task(void* context) {
PicopassWorker* picopass_worker = context;
picopass_worker_enable_field();
if(picopass_worker->state == PicopassWorkerStateDetect) {
picopass_worker_detect(picopass_worker);
} else if(picopass_worker->state == PicopassWorkerStateWrite) {
picopass_worker_write(picopass_worker);
} else if(picopass_worker->state == PicopassWorkerStateWriteKey) {
picopass_worker_write_key(picopass_worker);
} else if(picopass_worker->state == PicopassWorkerStateEliteDictAttack) {
picopass_worker_elite_dict_attack(picopass_worker);
} else {
FURI_LOG_W(TAG, "Unknown state %d", picopass_worker->state);
}
picopass_worker_disable_field(ERR_NONE);
picopass_worker_change_state(picopass_worker, PicopassWorkerStateReady);
return 0;
}
void picopass_worker_detect(PicopassWorker* picopass_worker) {
picopass_device_data_clear(picopass_worker->dev_data);
PicopassDeviceData* dev_data = picopass_worker->dev_data;
PicopassBlock* AA1 = dev_data->AA1;
PicopassPacs* pacs = &dev_data->pacs;
ReturnCode err;
// reset device data
for(size_t i = 0; i < PICOPASS_MAX_APP_LIMIT; i++) {
memset(AA1[i].data, 0, sizeof(AA1[i].data));
}
memset(pacs, 0, sizeof(PicopassPacs));
PicopassWorkerEvent nextState = PicopassWorkerEventSuccess;
while(picopass_worker->state == PicopassWorkerStateDetect) {
if(picopass_detect_card(1000) == ERR_NONE) {
// Process first found device
err = picopass_read_preauth(AA1);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_read_preauth error %d", err);
nextState = PicopassWorkerEventFail;
}
// Thank you proxmark!
pacs->legacy = picopass_is_memset(AA1[5].data, 0xFF, 8);
pacs->se_enabled = (memcmp(AA1[5].data, "\xff\xff\xff\x00\x06\xff\xff\xff", 8) == 0);
if(pacs->se_enabled) {
FURI_LOG_D(TAG, "SE enabled");
nextState = PicopassWorkerEventFail;
}
if(nextState == PicopassWorkerEventSuccess) {
err = picopass_auth(picopass_worker);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_try_auth error %d", err);
nextState = PicopassWorkerEventFail;
}
}
if(nextState == PicopassWorkerEventSuccess) {
err = picopass_read_card(AA1);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_read_card error %d", err);
nextState = PicopassWorkerEventFail;
}
}
if(nextState == PicopassWorkerEventSuccess) {
err = picopass_device_parse_credential(AA1, pacs);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_device_parse_credential error %d", err);
nextState = PicopassWorkerEventFail;
}
}
if(nextState == PicopassWorkerEventSuccess) {
err = picopass_device_parse_wiegand(pacs->credential, &pacs->record);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_device_parse_wiegand error %d", err);
nextState = PicopassWorkerEventFail;
}
}
// Notify caller and exit
if(picopass_worker->callback) {
picopass_worker->callback(nextState, picopass_worker->context);
}
break;
}
furi_delay_ms(100);
}
}
void picopass_worker_write(PicopassWorker* picopass_worker) {
PicopassDeviceData* dev_data = picopass_worker->dev_data;
PicopassBlock* AA1 = dev_data->AA1;
ReturnCode err;
PicopassWorkerEvent nextState = PicopassWorkerEventSuccess;
while(picopass_worker->state == PicopassWorkerStateWrite) {
if(picopass_detect_card(1000) == ERR_NONE) {
err = picopass_write_card(AA1);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_write_card error %d", err);
nextState = PicopassWorkerEventFail;
}
// Notify caller and exit
if(picopass_worker->callback) {
picopass_worker->callback(nextState, picopass_worker->context);
}
break;
}
furi_delay_ms(100);
}
}
void picopass_worker_write_key(PicopassWorker* picopass_worker) {
PicopassDeviceData* dev_data = picopass_worker->dev_data;
PicopassBlock* AA1 = dev_data->AA1;
PicopassPacs* pacs = &dev_data->pacs;
ReturnCode err;
PicopassWorkerEvent nextState = PicopassWorkerEventSuccess;
uint8_t* csn = AA1[PICOPASS_CSN_BLOCK_INDEX].data;
uint8_t* configBlock = AA1[PICOPASS_CONFIG_BLOCK_INDEX].data;
uint8_t fuses = configBlock[7];
uint8_t* oldKey = AA1[PICOPASS_KD_BLOCK_INDEX].data;
uint8_t newKey[PICOPASS_BLOCK_LEN] = {0};
loclass_iclass_calc_div_key(csn, pacs->key, newKey, false);
if((fuses & 0x80) == 0x80) {
FURI_LOG_D(TAG, "Plain write for personalized mode key change");
} else {
FURI_LOG_D(TAG, "XOR write for application mode key change");
// XOR when in application mode
for(size_t i = 0; i < PICOPASS_BLOCK_LEN; i++) {
newKey[i] ^= oldKey[i];
}
}
while(picopass_worker->state == PicopassWorkerStateWriteKey) {
if(picopass_detect_card(1000) == ERR_NONE) {
err = picopass_write_block(AA1, PICOPASS_KD_BLOCK_INDEX, newKey);
if(err != ERR_NONE) {
FURI_LOG_E(TAG, "picopass_write_block error %d", err);
nextState = PicopassWorkerEventFail;
}
// Notify caller and exit
if(picopass_worker->callback) {
picopass_worker->callback(nextState, picopass_worker->context);
}
break;
}
furi_delay_ms(100);
}
}
Reference in New Issue View Git Blame Copy Permalink