mf_ultralight.h

#pragma once

#include <lib/nfc/protocols/iso14443_3a/iso14443_3a.h>
#include <mbedtls/include/mbedtls/des.h>

#ifdef __cplusplus
extern "C" {
#endif

#define MF_ULTRALIGHT_TEARING_FLAG_DEFAULT (0xBD)

#define MF_ULTRALIGHT_CMD_GET_VERSION   (0x60)
#define MF_ULTRALIGHT_CMD_READ_PAGE     (0x30)
#define MF_ULTRALIGHT_CMD_FAST_READ     (0x3A)
#define MF_ULTRALIGHT_CMD_SECTOR_SELECT (0xC2)
#define MF_ULTRALIGHT_CMD_COMP_WRITE    (0xA0)
#define MF_ULTRALIGHT_CMD_WRITE_PAGE    (0xA2)
#define MF_ULTRALIGHT_CMD_FAST_WRITE    (0xA6)
#define MF_ULTRALIGHT_CMD_READ_SIG      (0x3C)
#define MF_ULTRALIGHT_CMD_READ_CNT      (0x39)
#define MF_ULTRALIGHT_CMD_INCR_CNT      (0xA5)
#define MF_ULTRALIGHT_CMD_CHECK_TEARING (0x3E)
#define MF_ULTRALIGHT_CMD_PWD_AUTH      (0x1B)
#define MF_ULTRALIGHT_CMD_AUTH          (0x1A)
#define MF_ULTRALIGHT_CMD_VCSL          (0x4B)

#define MF_ULTRALIGHT_CMD_ACK      (0x0A)
#define MF_ULTRALIGHT_CMD_NACK     (0x00)
#define MF_ULTRALIGHT_CMD_AUTH_NAK (0x04)

#define MF_ULTRALIGHT_MAX_CNTR_VAL       (0x00FFFFFF)
#define MF_ULTRALIGHT_MAX_PAGE_NUM       (510)
#define MF_ULTRALIGHT_PAGE_SIZE          (4U)
#define MF_ULTRALIGHT_SIGNATURE_SIZE     (32)
#define MF_ULTRALIGHT_COUNTER_SIZE       (3)
#define MF_ULTRALIGHT_COUNTER_NUM        (3)
#define MF_ULTRALIGHT_TEARING_FLAG_SIZE  (1)
#define MF_ULTRALIGHT_TEARING_FLAG_NUM   (3)
#define MF_ULTRALIGHT_AUTH_PASSWORD_SIZE (4)
#define MF_ULTRALIGHT_AUTH_PACK_SIZE     (2)
#define MF_ULTRALIGHT_DEFAULT_PASSWORD   (0xffffffffUL)

#define MF_ULTRALIGHT_C_AUTH_RESPONSE_SIZE      (9)
#define MF_ULTRALIGHT_C_AUTH_DES_KEY_SIZE       (16)
#define MF_ULTRALIGHT_C_AUTH_DATA_SIZE          (MF_ULTRALIGHT_C_AUTH_DES_KEY_SIZE)
#define MF_ULTRALIGHT_C_AUTH_IV_BLOCK_SIZE      (8)
#define MF_ULTRALIGHT_C_AUTH_RND_BLOCK_SIZE     (8)
#define MF_ULTRALIGHT_C_AUTH_RND_A_BLOCK_OFFSET (0)
#define MF_ULTRALIGHT_C_AUTH_RND_B_BLOCK_OFFSET (8)
#define MF_ULTRALIGHT_C_ENCRYPTED_PACK_SIZE     (MF_ULTRALIGHT_C_AUTH_DATA_SIZE + 1)
#define MF_ULTRALIGHT_C_DEFAULT_KEY                                                               \
    (uint8_t[]) {                                                                                 \
        0x49, 0x45, 0x4D, 0x4B, 0x41, 0x45, 0x52, 0x42, 0x21, 0x4E, 0x41, 0x43, 0x55, 0x4F, 0x59, \
            0x46                                                                                  \
    }

typedef enum {
    MfUltralightErrorNone,
    MfUltralightErrorNotPresent,
    MfUltralightErrorProtocol,
    MfUltralightErrorAuth,
    MfUltralightErrorTimeout,
} MfUltralightError;

typedef enum {
    MfUltralightTypeOrigin,
    MfUltralightTypeNTAG203,
    MfUltralightTypeMfulC,
    MfUltralightTypeUL11,
    MfUltralightTypeUL21,
    MfUltralightTypeNTAG213,
    MfUltralightTypeNTAG215,
    MfUltralightTypeNTAG216,
    MfUltralightTypeNTAGI2C1K,
    MfUltralightTypeNTAGI2C2K,
    MfUltralightTypeNTAGI2CPlus1K,
    MfUltralightTypeNTAGI2CPlus2K,

    MfUltralightTypeNum,
} MfUltralightType;

typedef enum {
    MfUltralightFeatureSupportReadVersion = (1U << 0),
    MfUltralightFeatureSupportReadSignature = (1U << 1),
    MfUltralightFeatureSupportReadCounter = (1U << 2),
    MfUltralightFeatureSupportCheckTearingFlag = (1U << 3),
    MfUltralightFeatureSupportFastRead = (1U << 4),
    MfUltralightFeatureSupportIncCounter = (1U << 5),
    MfUltralightFeatureSupportFastWrite = (1U << 6),
    MfUltralightFeatureSupportCompatibleWrite = (1U << 7),
    MfUltralightFeatureSupportPasswordAuth = (1U << 8),
    MfUltralightFeatureSupportVcsl = (1U << 9),
    MfUltralightFeatureSupportSectorSelect = (1U << 10),
    MfUltralightFeatureSupportSingleCounter = (1U << 11),
    MfUltralightFeatureSupportAsciiMirror = (1U << 12),
    MfUltralightFeatureSupportCounterInMemory = (1U << 13),
    MfUltralightFeatureSupportDynamicLock = (1U << 14),
    MfUltralightFeatureSupportAuthenticate = (1U << 15),
} MfUltralightFeatureSupport;

typedef struct {
    uint8_t data[MF_ULTRALIGHT_PAGE_SIZE];
} MfUltralightPage;

typedef struct {
    MfUltralightPage page[4];
} MfUltralightPageReadCommandData;

typedef struct {
    uint8_t header;
    uint8_t vendor_id;
    uint8_t prod_type;
    uint8_t prod_subtype;
    uint8_t prod_ver_major;
    uint8_t prod_ver_minor;
    uint8_t storage_size;
    uint8_t protocol_type;
} MfUltralightVersion;

typedef struct {
    uint8_t data[MF_ULTRALIGHT_SIGNATURE_SIZE];
} MfUltralightSignature;

typedef union {
    uint32_t counter;
    uint8_t data[MF_ULTRALIGHT_COUNTER_SIZE];
} MfUltralightCounter;

typedef struct {
    uint8_t data;
} MfUltralightTearingFlag;

typedef struct {
    uint8_t data[MF_ULTRALIGHT_AUTH_PASSWORD_SIZE];
} MfUltralightAuthPassword;

typedef struct {
    uint8_t data[MF_ULTRALIGHT_C_AUTH_DES_KEY_SIZE];
} MfUltralightC3DesAuthKey;

typedef struct {
    uint8_t data[MF_ULTRALIGHT_AUTH_PACK_SIZE];
} MfUltralightAuthPack;

typedef enum {
    MfUltralightMirrorNone,
    MfUltralightMirrorUid,
    MfUltralightMirrorCounter,
    MfUltralightMirrorUidCounter,
} MfUltralightMirrorConf;

typedef struct FURI_PACKED {
    union {
        uint8_t value;
        struct {
            uint8_t rfui1                      : 2;
            bool strg_mod_en                   : 1;
            bool rfui2                         : 1;
            uint8_t mirror_byte                : 2;
            MfUltralightMirrorConf mirror_conf : 2;
        };
    } mirror;
    uint8_t rfui1;
    uint8_t mirror_page;
    uint8_t auth0;
    union {
        uint8_t value;
        struct {
            uint8_t authlim       : 3;
            bool nfc_cnt_pwd_prot : 1;
            bool nfc_cnt_en       : 1;
            bool nfc_dis_sec1     : 1; // NTAG I2C Plus only
            bool cfglck           : 1;
            bool prot             : 1;
        };
    } access;
    uint8_t vctid;
    uint8_t rfui2[2];
    MfUltralightAuthPassword password;
    MfUltralightAuthPack pack;
    uint8_t rfui3[2];
} MfUltralightConfigPages;

typedef struct {
    Iso14443_3aData* iso14443_3a_data;
    MfUltralightType type;
    MfUltralightVersion version;
    MfUltralightSignature signature;
    MfUltralightCounter counter[MF_ULTRALIGHT_COUNTER_NUM];
    MfUltralightTearingFlag tearing_flag[MF_ULTRALIGHT_TEARING_FLAG_NUM];
    MfUltralightPage page[MF_ULTRALIGHT_MAX_PAGE_NUM];
    uint16_t pages_read;
    uint16_t pages_total;
    uint32_t auth_attempts;
} MfUltralightData;

extern const NfcDeviceBase nfc_device_mf_ultralight;

MfUltralightData* mf_ultralight_alloc(void);

void mf_ultralight_free(MfUltralightData* data);

void mf_ultralight_reset(MfUltralightData* data);

void mf_ultralight_copy(MfUltralightData* data, const MfUltralightData* other);

bool mf_ultralight_verify(MfUltralightData* data, const FuriString* device_type);

bool mf_ultralight_load(MfUltralightData* data, FlipperFormat* ff, uint32_t version);

bool mf_ultralight_save(const MfUltralightData* data, FlipperFormat* ff);

bool mf_ultralight_is_equal(const MfUltralightData* data, const MfUltralightData* other);

const char*
    mf_ultralight_get_device_name(const MfUltralightData* data, NfcDeviceNameType name_type);

const uint8_t* mf_ultralight_get_uid(const MfUltralightData* data, size_t* uid_len);

bool mf_ultralight_set_uid(MfUltralightData* data, const uint8_t* uid, size_t uid_len);

Iso14443_3aData* mf_ultralight_get_base_data(const MfUltralightData* data);

MfUltralightType mf_ultralight_get_type_by_version(MfUltralightVersion* version);

uint16_t mf_ultralight_get_pages_total(MfUltralightType type);

uint32_t mf_ultralight_get_feature_support_set(MfUltralightType type);

uint16_t mf_ultralight_get_config_page_num(MfUltralightType type);

uint8_t mf_ultralight_get_write_end_page(MfUltralightType type);

uint8_t mf_ultralight_get_pwd_page_num(MfUltralightType type);

bool mf_ultralight_is_page_pwd_or_pack(MfUltralightType type, uint16_t page_num);

bool mf_ultralight_support_feature(const uint32_t feature_set, const uint32_t features_to_check);

bool mf_ultralight_get_config_page(const MfUltralightData* data, MfUltralightConfigPages** config);

bool mf_ultralight_is_all_data_read(const MfUltralightData* data);

bool mf_ultralight_detect_protocol(const Iso14443_3aData* iso14443_3a_data);

bool mf_ultralight_is_counter_configured(const MfUltralightData* data);

void mf_ultralight_3des_shift_data(uint8_t* const arr);

bool mf_ultralight_3des_key_valid(const MfUltralightData* data);

const uint8_t* mf_ultralight_3des_get_key(const MfUltralightData* data);

void mf_ultralight_3des_encrypt(
    mbedtls_des3_context* ctx,
    const uint8_t* ck,
    const uint8_t* iv,
    const uint8_t* input,
    const uint8_t length,
    uint8_t* out);

void mf_ultralight_3des_decrypt(
    mbedtls_des3_context* ctx,
    const uint8_t* ck,
    const uint8_t* iv,
    const uint8_t* input,
    const uint8_t length,
    uint8_t* out);

#ifdef __cplusplus
}
#endif