[FL-2245] Introduce Mifare Classic Emulation (#1242)

* digital signal: introduce digital signal * nfca: add nfca signal encoder * nfc: add mifare classic emulation scene * nfca: add classic emulation support to lib and hal * mifare classic: support basic read commands * nfc: add mifare classic menu scene * mifare classic: start parsing commands in emulation * mifare classic: add nested auth * nfc: fix errors * mifare classic: add encrypt function * nfc: fix mifare classic save * lib hex: add hex uint64_t ASCII parser * flipper format: add uint64 hex format support * nfc: add mifare classic key map * nfc: hide mifare classic keys on emulation * mifare classic: add NACK responce * nfc: add partial bytes support in transparent mode * nfc: mifare classic add shadow file support * digital signal: move arr buffer from BSS to heap * mifare classic: process access bits more careful * nfca: fix memory leack * nfc: format sources * mifare classic: cleun up Co-authored-by: あく <alleteam@gmail.com>
2022-05-24 17:00:15 +03:00
parent 2017baac48
commit d31578508a
28 changed files with 1150 additions and 28 deletions
--- a/applications/nfc/scenes/nfc_scene_emulate_mifare_classic.c
+++ b/applications/nfc/scenes/nfc_scene_emulate_mifare_classic.c
@@ -0,0 +1,64 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+#define NFC_MF_CLASSIC_DATA_NOT_CHANGED (0UL)
+#define NFC_MF_CLASSIC_DATA_CHANGED (1UL)
+
+void nfc_emulate_mifare_classic_worker_callback(NfcWorkerEvent event, void* context) {
+    UNUSED(event);
+    Nfc* nfc = context;
+
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneEmulateMifareClassic, NFC_MF_CLASSIC_DATA_CHANGED);
+}
+
+void nfc_scene_emulate_mifare_classic_on_enter(void* context) {
+    Nfc* nfc = context;
+    DOLPHIN_DEED(DolphinDeedNfcEmulate);
+
+    // Setup view
+    Popup* popup = nfc->popup;
+    if(strcmp(nfc->dev->dev_name, "")) {
+        nfc_text_store_set(nfc, "%s", nfc->dev->dev_name);
+    }
+    popup_set_icon(popup, 0, 3, &I_RFIDDolphinSend_97x61);
+    popup_set_header(popup, "Emulating\nMf Classic", 56, 31, AlignLeft, AlignTop);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateEmulateMifareClassic,
+        &nfc->dev->dev_data,
+        nfc_emulate_mifare_classic_worker_callback,
+        nfc);
+}
+
+bool nfc_scene_emulate_mifare_classic_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeTick) {
+        notification_message(nfc->notifications, &sequence_blink_blue_10);
+        consumed = true;
+    } else if(event.type == SceneManagerEventTypeBack) {
+        // Stop worker
+        nfc_worker_stop(nfc->worker);
+        // Check if data changed and save in shadow file
+        if(scene_manager_get_scene_state(nfc->scene_manager, NfcSceneEmulateMifareClassic) ==
+           NFC_MF_CLASSIC_DATA_CHANGED) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneEmulateMifareClassic, NFC_MF_CLASSIC_DATA_NOT_CHANGED);
+            nfc_device_save_shadow(nfc->dev, nfc->dev->dev_name);
+        }
+        consumed = false;
+    }
+    return consumed;
+}
+
+void nfc_scene_emulate_mifare_classic_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Clear view
+    popup_reset(nfc->popup);
+}