NFC: Add support for Gen4 "ultimate card" in Magic app

applications/external/nfc_magic/lib/magic/classic_gen1.c

@@ -0,0 +1,175 @@
+#include "classic_gen1.h"
+
+#include <furi_hal_nfc.h>
+
+#define TAG "Magic"
+
+#define MAGIC_CMD_WUPA (0x40)
+#define MAGIC_CMD_WIPE (0x41)
+#define MAGIC_CMD_ACCESS (0x43)
+
+#define MAGIC_MIFARE_READ_CMD (0x30)
+#define MAGIC_MIFARE_WRITE_CMD (0xA0)
+
+#define MAGIC_ACK (0x0A)
+
+#define MAGIC_BUFFER_SIZE (32)
+
+bool magic_gen1_wupa() {
+    bool magic_activated = false;
+    uint8_t tx_data[MAGIC_BUFFER_SIZE] = {};
+    uint8_t rx_data[MAGIC_BUFFER_SIZE] = {};
+    uint16_t rx_len = 0;
+    FuriHalNfcReturn ret = 0;
+
+    do {
+        // Start communication
+        tx_data[0] = MAGIC_CMD_WUPA;
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            7,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_TX_MANUAL | FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON |
+                FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_RX_KEEP,
+            furi_hal_nfc_ll_ms2fc(20));
+        if(ret != FuriHalNfcReturnIncompleteByte) break;
+        if(rx_len != 4) break;
+        if(rx_data[0] != MAGIC_ACK) break;
+        magic_activated = true;
+    } while(false);
+
+    return magic_activated;
+}
+
+bool magic_gen1_data_access_cmd() {
+    bool write_cmd_success = false;
+    uint8_t tx_data[MAGIC_BUFFER_SIZE] = {};
+    uint8_t rx_data[MAGIC_BUFFER_SIZE] = {};
+    uint16_t rx_len = 0;
+    FuriHalNfcReturn ret = 0;
+
+    do {
+        tx_data[0] = MAGIC_CMD_ACCESS;
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            8,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_TX_MANUAL | FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON |
+                FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_RX_KEEP,
+            furi_hal_nfc_ll_ms2fc(20));
+        if(ret != FuriHalNfcReturnIncompleteByte) break;
+        if(rx_len != 4) break;
+        if(rx_data[0] != MAGIC_ACK) break;
+
+        write_cmd_success = true;
+    } while(false);
+
+    return write_cmd_success;
+}
+
+bool magic_gen1_read_block(uint8_t block_num, MfClassicBlock* data) {
+    furi_assert(data);
+
+    bool read_success = false;
+
+    uint8_t tx_data[MAGIC_BUFFER_SIZE] = {};
+    uint8_t rx_data[MAGIC_BUFFER_SIZE] = {};
+    uint16_t rx_len = 0;
+    FuriHalNfcReturn ret = 0;
+
+    do {
+        tx_data[0] = MAGIC_MIFARE_READ_CMD;
+        tx_data[1] = block_num;
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            2 * 8,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON,
+            furi_hal_nfc_ll_ms2fc(20));
+
+        if(ret != FuriHalNfcReturnOk) break;
+        if(rx_len != 16 * 8) break;
+        memcpy(data->value, rx_data, sizeof(data->value));
+        read_success = true;
+    } while(false);
+
+    return read_success;
+}
+
+bool magic_gen1_write_blk(uint8_t block_num, MfClassicBlock* data) {
+    furi_assert(data);
+
+    bool write_success = false;
+    uint8_t tx_data[MAGIC_BUFFER_SIZE] = {};
+    uint8_t rx_data[MAGIC_BUFFER_SIZE] = {};
+    uint16_t rx_len = 0;
+    FuriHalNfcReturn ret = 0;
+
+    do {
+        tx_data[0] = MAGIC_MIFARE_WRITE_CMD;
+        tx_data[1] = block_num;
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            2 * 8,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON | FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_RX_KEEP,
+            furi_hal_nfc_ll_ms2fc(20));
+        if(ret != FuriHalNfcReturnIncompleteByte) break;
+        if(rx_len != 4) break;
+        if(rx_data[0] != MAGIC_ACK) break;
+
+        memcpy(tx_data, data->value, sizeof(data->value));
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            16 * 8,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON | FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_RX_KEEP,
+            furi_hal_nfc_ll_ms2fc(20));
+        if(ret != FuriHalNfcReturnIncompleteByte) break;
+        if(rx_len != 4) break;
+        if(rx_data[0] != MAGIC_ACK) break;
+
+        write_success = true;
+    } while(false);
+
+    return write_success;
+}
+
+bool magic_gen1_wipe() {
+    bool wipe_success = false;
+    uint8_t tx_data[MAGIC_BUFFER_SIZE] = {};
+    uint8_t rx_data[MAGIC_BUFFER_SIZE] = {};
+    uint16_t rx_len = 0;
+    FuriHalNfcReturn ret = 0;
+
+    do {
+        tx_data[0] = MAGIC_CMD_WIPE;
+        ret = furi_hal_nfc_ll_txrx_bits(
+            tx_data,
+            8,
+            rx_data,
+            sizeof(rx_data),
+            &rx_len,
+            FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_TX_MANUAL | FURI_HAL_NFC_LL_TXRX_FLAGS_AGC_ON |
+                FURI_HAL_NFC_LL_TXRX_FLAGS_CRC_RX_KEEP,
+            furi_hal_nfc_ll_ms2fc(2000));
+
+        if(ret != FuriHalNfcReturnIncompleteByte) break;
+        if(rx_len != 4) break;
+        if(rx_data[0] != MAGIC_ACK) break;
+
+        wipe_success = true;
+    } while(false);
+
+    return wipe_success;
+}

applications/external/nfc_magic/lib/magic/classic_gen1.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <lib/nfc/protocols/mifare_classic.h>
+
+bool magic_gen1_wupa();
+
+bool magic_gen1_read_block(uint8_t block_num, MfClassicBlock* data);
+
+bool magic_gen1_data_access_cmd();
+
+bool magic_gen1_write_blk(uint8_t block_num, MfClassicBlock* data);
+
+bool magic_gen1_wipe();

applications/external/nfc_magic/lib/magic/common.c

@@ -0,0 +1,33 @@
+#include "common.h"
+
+#include <furi_hal_nfc.h>
+
+#define REQA (0x26)
+#define CL1_PREFIX (0x93)
+#define SELECT (0x70)
+
+#define MAGIC_BUFFER_SIZE (32)
+
+bool magic_activate() {
+    FuriHalNfcReturn ret = 0;
+
+    // Setup nfc poller
+    furi_hal_nfc_exit_sleep();
+    furi_hal_nfc_ll_txrx_on();
+    furi_hal_nfc_ll_poll();
+    ret = furi_hal_nfc_ll_set_mode(
+        FuriHalNfcModePollNfca, FuriHalNfcBitrate106, FuriHalNfcBitrate106);
+    if(ret != FuriHalNfcReturnOk) return false;
+
+    furi_hal_nfc_ll_set_fdt_listen(FURI_HAL_NFC_LL_FDT_LISTEN_NFCA_POLLER);
+    furi_hal_nfc_ll_set_fdt_poll(FURI_HAL_NFC_LL_FDT_POLL_NFCA_POLLER);
+    furi_hal_nfc_ll_set_error_handling(FuriHalNfcErrorHandlingNfc);
+    furi_hal_nfc_ll_set_guard_time(FURI_HAL_NFC_LL_GT_NFCA);
+
+    return true;
+}
+
+void magic_deactivate() {
+    furi_hal_nfc_ll_txrx_off();
+    furi_hal_nfc_sleep();
+}

applications/external/nfc_magic/lib/magic/common.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef enum {
+    MagicTypeClassicGen1,
+    MagicTypeClassicDirectWrite,
+    MagicTypeClassicAPDU,
+    MagicTypeUltralightGen1,
+    MagicTypeUltralightDirectWrite,
+    MagicTypeUltralightC_Gen1,
+    MagicTypeUltralightC_DirectWrite,
+    MagicTypeGen4,
+} MagicType;
+
+bool magic_activate();
+
+void magic_deactivate();