#ifndef RC_HASH_H #define RC_HASH_H #include #include #include #include "rc_consoles.h" RC_BEGIN_C_DECLS /* ===================================================== */ /* generates a hash from a block of memory. * returns non-zero on success, or zero on failure. */ RC_EXPORT int RC_CCONV rc_hash_generate_from_buffer(char hash[33], uint32_t console_id, const uint8_t* buffer, size_t buffer_size); /* generates a hash from a file. * returns non-zero on success, or zero on failure. */ RC_EXPORT int RC_CCONV rc_hash_generate_from_file(char hash[33], uint32_t console_id, const char* path); /* ===================================================== */ /* data for rc_hash_iterate */ typedef struct rc_hash_iterator { const uint8_t* buffer; size_t buffer_size; uint8_t consoles[12]; int index; const char* path; } rc_hash_iterator_t; /* initializes a rc_hash_iterator * - path must be provided * - if buffer and buffer_size are provided, path may be a filename (i.e. for something extracted from a zip file) */ RC_EXPORT void RC_CCONV rc_hash_initialize_iterator(struct rc_hash_iterator* iterator, const char* path, const uint8_t* buffer, size_t buffer_size); /* releases resources associated to a rc_hash_iterator */ RC_EXPORT void RC_CCONV rc_hash_destroy_iterator(struct rc_hash_iterator* iterator); /* generates the next hash for the data in the rc_hash_iterator. * returns non-zero if a hash was generated, or zero if no more hashes can be generated for the data. */ RC_EXPORT int RC_CCONV rc_hash_iterate(char hash[33], struct rc_hash_iterator* iterator); /* ===================================================== */ /* specifies a function to call when an error occurs to display the error message */ typedef void (RC_CCONV *rc_hash_message_callback)(const char*); RC_EXPORT void RC_CCONV rc_hash_init_error_message_callback(rc_hash_message_callback callback); /* specifies a function to call for verbose logging */ RC_EXPORT void rc_hash_init_verbose_message_callback(rc_hash_message_callback callback); /* ===================================================== */ /* opens a file */ typedef void* (RC_CCONV *rc_hash_filereader_open_file_handler)(const char* path_utf8); /* moves the file pointer - standard fseek parameters */ typedef void (RC_CCONV *rc_hash_filereader_seek_handler)(void* file_handle, int64_t offset, int origin); /* locates the file pointer */ typedef int64_t (RC_CCONV *rc_hash_filereader_tell_handler)(void* file_handle); /* reads the specified number of bytes from the file starting at the read pointer. * returns the number of bytes actually read. */ typedef size_t (RC_CCONV *rc_hash_filereader_read_handler)(void* file_handle, void* buffer, size_t requested_bytes); /* closes the file */ typedef void (RC_CCONV *rc_hash_filereader_close_file_handler)(void* file_handle); struct rc_hash_filereader { rc_hash_filereader_open_file_handler open; rc_hash_filereader_seek_handler seek; rc_hash_filereader_tell_handler tell; rc_hash_filereader_read_handler read; rc_hash_filereader_close_file_handler close; }; RC_EXPORT void RC_CCONV rc_hash_init_custom_filereader(struct rc_hash_filereader* reader); /* ===================================================== */ #define RC_HASH_CDTRACK_FIRST_DATA ((uint32_t)-1) /* the first data track (skip audio tracks) */ #define RC_HASH_CDTRACK_LAST ((uint32_t)-2) /* the last data/audio track */ #define RC_HASH_CDTRACK_LARGEST ((uint32_t)-3) /* the largest data/audio track */ #define RC_HASH_CDTRACK_FIRST_OF_SECOND_SESSION ((uint32_t)-4) /* the first data/audio track of the second session */ /* opens a track from the specified file. see the RC_HASH_CDTRACK_ defines for special tracks. * returns a handle to be passed to the other functions, or NULL if the track could not be opened. */ typedef void* (RC_CCONV *rc_hash_cdreader_open_track_handler)(const char* path, uint32_t track); /* attempts to read the specified number of bytes from the file starting at the specified absolute sector. * returns the number of bytes actually read. */ typedef size_t (RC_CCONV *rc_hash_cdreader_read_sector_handler)(void* track_handle, uint32_t sector, void* buffer, size_t requested_bytes); /* closes the track handle */ typedef void (RC_CCONV *rc_hash_cdreader_close_track_handler)(void* track_handle); /* gets the absolute sector index for the first sector of a track */ typedef uint32_t(RC_CCONV *rc_hash_cdreader_first_track_sector_handler)(void* track_handle); struct rc_hash_cdreader { rc_hash_cdreader_open_track_handler open_track; rc_hash_cdreader_read_sector_handler read_sector; rc_hash_cdreader_close_track_handler close_track; rc_hash_cdreader_first_track_sector_handler first_track_sector; }; RC_EXPORT void RC_CCONV rc_hash_get_default_cdreader(struct rc_hash_cdreader* cdreader); RC_EXPORT void RC_CCONV rc_hash_init_default_cdreader(void); RC_EXPORT void RC_CCONV rc_hash_init_custom_cdreader(struct rc_hash_cdreader* reader); /* specifies a function called to obtain a 3DS CIA decryption normal key. * this key would be derived from slot0x3DKeyX and the common key specified by the passed index. * the normal key should be written in big endian format * returns non-zero on success, or zero on failure. */ typedef int (RC_CCONV *rc_hash_3ds_get_cia_normal_key_func)(uint8_t common_key_index, uint8_t out_normal_key[16]); RC_EXPORT void RC_CCONV rc_hash_init_3ds_get_cia_normal_key_func(rc_hash_3ds_get_cia_normal_key_func func); /* specifies a function called to obtain 3DS NCCH decryption normal keys. * the primary key will always use slot0x2CKeyX and the passed primary KeyY. * the secondary key will use the KeyX slot passed * the secondary KeyY will be identical to the primary keyY if the passed program id is NULL * if the program id is not null, then the secondary KeyY will be obtained with "seed crypto" * with "seed crypto" the 8 byte program id can be used to obtain a 16 byte "seed" within the seeddb.bin firmware file * the primary KeyY then the seed will then be hashed with SHA256, and the upper 16 bytes of the digest will be the secondary KeyY used * the normal keys should be written in big endian format * returns non-zero on success, or zero on failure. */ typedef int (RC_CCONV *rc_hash_3ds_get_ncch_normal_keys_func)(uint8_t primary_key_y[16], uint8_t secondary_key_x_slot, uint8_t* optional_program_id, uint8_t out_primary_key[16], uint8_t out_secondary_key[16]); RC_EXPORT void RC_CCONV rc_hash_init_3ds_get_ncch_normal_keys_func(rc_hash_3ds_get_ncch_normal_keys_func func); /* ===================================================== */ RC_END_C_DECLS #endif /* RC_HASH_H */