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[FL-3241] NFC disable EMV support (#2571)

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* nfc: remove read emv from extra actions
* nfc: remove read emv

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
gornekich 2023-04-10 19:51:55 +04:00 committed by GitHub
parent b9ccb274a7
commit 7ac7b70884
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 0 additions and 100 deletions
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5
applications/main/nfc/scenes/nfc_scene_read.c
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@ -85,11 +85,6 @@ bool nfc_scene_read_on_event(void* context, SceneManagerEvent event) {
scene_manager_next_scene(nfc->scene_manager, NfcSceneMfDesfireReadSuccess);
DOLPHIN_DEED(DolphinDeedNfcReadSuccess);
consumed = true;
} else if(event.event == NfcWorkerEventReadBankCard) {
notification_message(nfc->notifications, &sequence_success);
scene_manager_next_scene(nfc->scene_manager, NfcSceneEmvReadSuccess);
DOLPHIN_DEED(DolphinDeedNfcReadSuccess);
consumed = true;
} else if(event.event == NfcWorkerEventReadMfClassicDictAttackRequired) {
if(mf_classic_dict_check_presence(MfClassicDictTypeSystem)) {
scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicDictAttack);

12
applications/main/nfc/scenes/nfc_scene_read_card_type.c
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@ -5,7 +5,6 @@ enum SubmenuIndex {
SubmenuIndexReadMifareClassic,
SubmenuIndexReadMifareDesfire,
SubmenuIndexReadMfUltralight,
SubmenuIndexReadEMV,
SubmenuIndexReadNFCA,
};
@ -37,12 +36,6 @@ void nfc_scene_read_card_type_on_enter(void* context) {
SubmenuIndexReadMfUltralight,
nfc_scene_read_card_type_submenu_callback,
nfc);
submenu_add_item(
submenu,
"Read EMV card",
SubmenuIndexReadEMV,
nfc_scene_read_card_type_submenu_callback,
nfc);
submenu_add_item(
submenu,
"Read NFC-A data",
@ -75,11 +68,6 @@ bool nfc_scene_read_card_type_on_event(void* context, SceneManagerEvent event) {
scene_manager_next_scene(nfc->scene_manager, NfcSceneRead);
consumed = true;
}
if(event.event == SubmenuIndexReadEMV) {
nfc->dev->dev_data.read_mode = NfcReadModeEMV;
scene_manager_next_scene(nfc->scene_manager, NfcSceneRead);
consumed = true;
}
if(event.event == SubmenuIndexReadNFCA) {
nfc->dev->dev_data.read_mode = NfcReadModeNFCA;
scene_manager_next_scene(nfc->scene_manager, NfcSceneRead);

1
lib/nfc/nfc_device.h
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@ -56,7 +56,6 @@ typedef enum {
NfcReadModeMfClassic,
NfcReadModeMfUltralight,
NfcReadModeMfDesfire,
NfcReadModeEMV,
NfcReadModeNFCA,
} NfcReadMode;

80
lib/nfc/nfc_worker.c
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@ -229,69 +229,6 @@ static bool nfc_worker_read_mf_desfire(NfcWorker* nfc_worker, FuriHalNfcTxRxCont
return read_success;
}
static bool nfc_worker_read_bank_card(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
bool read_success = false;
EmvApplication emv_app = {};
EmvData* result = &nfc_worker->dev_data->emv_data;
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
}
// Bank cards require strong field to start application. If we find AID, try at least several
// times to start EMV application
uint8_t start_application_attempts = 0;
while(start_application_attempts < 3) {
if(nfc_worker->state != NfcWorkerStateRead) break;
start_application_attempts++;
if(!furi_hal_nfc_detect(&nfc_worker->dev_data->nfc_data, 300)) break;
if(emv_read_bank_card(tx_rx, &emv_app)) {
FURI_LOG_D(TAG, "Bank card number read from %d attempt", start_application_attempts);
break;
} else if(emv_app.aid_len && !emv_app.app_started) {
FURI_LOG_D(
TAG,
"AID found but failed to start EMV app from %d attempt",
start_application_attempts);
furi_hal_nfc_sleep();
continue;
} else {
FURI_LOG_D(TAG, "Failed to find AID");
break;
}
}
// Copy data
if(emv_app.aid_len) {
result->aid_len = emv_app.aid_len;
memcpy(result->aid, emv_app.aid, result->aid_len);
read_success = true;
}
if(emv_app.card_number_len) {
result->number_len = emv_app.card_number_len;
memcpy(result->number, emv_app.card_number, result->number_len);
}
if(emv_app.name_found) {
memcpy(result->name, emv_app.name, sizeof(emv_app.name));
}
if(emv_app.exp_month) {
result->exp_mon = emv_app.exp_month;
result->exp_year = emv_app.exp_year;
}
if(emv_app.country_code) {
result->country_code = emv_app.country_code;
}
if(emv_app.currency_code) {
result->currency_code = emv_app.currency_code;
}
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
reader_analyzer_stop(nfc_worker->reader_analyzer);
}
return read_success;
}
static bool nfc_worker_read_nfca(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
@ -315,14 +252,6 @@ static bool nfc_worker_read_nfca(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* t
nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
}
card_read = true;
} else if(nfc_data->interface == FuriHalNfcInterfaceIsoDep) {
FURI_LOG_I(TAG, "ISO14443-4 card detected");
nfc_worker->dev_data->protocol = NfcDeviceProtocolEMV;
if(!nfc_worker_read_bank_card(nfc_worker, tx_rx)) {
FURI_LOG_I(TAG, "Unknown card. Save UID");
nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
}
card_read = true;
} else {
nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
card_read = true;
@ -358,9 +287,6 @@ void nfc_worker_read(NfcWorker* nfc_worker) {
} else if(dev_data->protocol == NfcDeviceProtocolMifareDesfire) {
event = NfcWorkerEventReadMfDesfire;
break;
} else if(dev_data->protocol == NfcDeviceProtocolEMV) {
event = NfcWorkerEventReadBankCard;
break;
} else if(dev_data->protocol == NfcDeviceProtocolUnknown) {
event = NfcWorkerEventReadUidNfcA;
break;
@ -444,12 +370,6 @@ void nfc_worker_read_type(NfcWorker* nfc_worker) {
event = NfcWorkerEventReadMfDesfire;
break;
}
} else if(read_mode == NfcReadModeEMV) {
nfc_worker->dev_data->protocol = NfcDeviceProtocolEMV;
if(nfc_worker_read_bank_card(nfc_worker, &tx_rx)) {
event = NfcWorkerEventReadBankCard;
break;
}
} else if(read_mode == NfcReadModeNFCA) {
nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
event = NfcWorkerEventReadUidNfcA;

1
lib/nfc/nfc_worker.h
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@ -39,7 +39,6 @@ typedef enum {
NfcWorkerEventReadMfClassicDone,
NfcWorkerEventReadMfClassicLoadKeyCache,
NfcWorkerEventReadMfClassicDictAttackRequired,
NfcWorkerEventReadBankCard,
// Nfc worker common events
NfcWorkerEventSuccess,

1
lib/nfc/nfc_worker_i.h
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@ -6,7 +6,6 @@
#include <lib/toolbox/stream/file_stream.h>
#include <lib/nfc/protocols/nfc_util.h>
#include <lib/nfc/protocols/emv.h>
#include <lib/nfc/protocols/mifare_common.h>
#include <lib/nfc/protocols/mifare_ultralight.h>
#include <lib/nfc/protocols/mifare_classic.h>