+#define DEFAULT_WIPE_BLOCK 1048576 /* 1 MiB */
+
+extern int opt_debug;
+extern int opt_debug_json;
+extern int opt_verbose;
+extern int opt_batch_mode;
+extern int opt_force_password;
+extern int opt_progress_frequency;
+
+/* Common tools */
+void clogger(struct crypt_device *cd, int level, const char *file, int line,
+ const char *format, ...) __attribute__ ((format (printf, 5, 6)));
+void tool_log(int level, const char *msg, void *usrptr __attribute__((unused)));
+void quiet_log(int level, const char *msg, void *usrptr);
+
+int yesDialog(const char *msg, void *usrptr);
+int noDialog(const char *msg, void *usrptr);
+void show_status(int errcode);
+const char *uuid_or_device(const char *spec);
+__attribute__ ((noreturn)) \
+void usage(poptContext popt_context, int exitcode, const char *error, const char *more);
+void dbg_version_and_cmd(int argc, const char **argv);
+int translate_errno(int r);
+
+typedef enum { CREATED, UNLOCKED, REMOVED } crypt_object_op;
+void tools_keyslot_msg(int keyslot, crypt_object_op op);
+void tools_token_msg(int token, crypt_object_op op);
+
+extern volatile int quit;
+void set_int_block(int block);
+void set_int_handler(int block);
+void check_signal(int *r);
+int tools_signals_blocked(void);
+
+int tools_get_key(const char *prompt,
+ char **key, size_t *key_size,
+ uint64_t keyfile_offset, size_t keyfile_size_max,
+ const char *key_file,
+ int timeout, int verify, int pwquality,
+ struct crypt_device *cd);
+void tools_passphrase_msg(int r);
+int tools_is_stdin(const char *key_file);
+int tools_string_to_size(struct crypt_device *cd, const char *s, uint64_t *size);
+
+void tools_clear_line(void);
+
+int tools_wipe_progress(uint64_t size, uint64_t offset, void *usrptr);
+int tools_reencrypt_progress(uint64_t size, uint64_t offset, void *usrptr);
+
+int tools_read_mk(const char *file, char **key, int keysize);
+int tools_write_mk(const char *file, const char *key, int keysize);
+
+int tools_read_json_file(struct crypt_device *cd, const char *file, char **json, size_t *json_size);
+int tools_write_json_file(struct crypt_device *cd, const char *file, const char *json);
+
+int tools_detect_signatures(const char *device, int ignore_luks, size_t *count);
+int tools_wipe_all_signatures(const char *path);
+
+int tools_lookup_crypt_device(struct crypt_device *cd, const char *type,
+ const char *data_device_path, char *name, size_t name_length);
+
+/* each utility is required to implement it */
+void tools_cleanup(void);
+
+#define FREE_AND_NULL(x) do { free(x); x = NULL; } while (0)
+
+/* Log */