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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-29 09:38:08 +00:00
trezor-firmware/embed/extmod/modtrezorconfig/modtrezorconfig.c

140 lines
4.9 KiB
C

/*
* Copyright (c) Pavol Rusnak, Jan Pochyla, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#include "py/runtime.h"
#include "py/mphal.h"
#include "py/objstr.h"
#if MICROPY_PY_TREZORCONFIG
#include "norcow.h"
#include "storage.h"
/// def init() -> None:
/// '''
/// Initializes the storage. Must be called before any other method is
/// called from this module!
/// '''
STATIC mp_obj_t mod_trezorconfig_init(void) {
storage_init();
// wipe storage when debug build is used
if (MP_STATE_VM(mp_optimise_value) == 0) {
storage_wipe();
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_init_obj, mod_trezorconfig_init);
/// def unlock(pin: int, waitcallback: (int, int -> None)) -> bool:
/// '''
/// Attempts to unlock the storage with given PIN. Returns True on
/// success, False on failure.
/// '''
STATIC mp_obj_t mod_trezorconfig_unlock(mp_obj_t pin, mp_obj_t waitcallback) {
uint32_t pin_i = mp_obj_get_int(pin);
if (sectrue != storage_unlock(pin_i, waitcallback)) {
return mp_const_false;
}
return mp_const_true;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorconfig_unlock_obj, mod_trezorconfig_unlock);
/// def has_pin() -> bool:
/// '''
/// Returns True if storage has a configured PIN, False otherwise.
/// '''
STATIC mp_obj_t mod_trezorconfig_has_pin(void) {
if (sectrue != storage_has_pin()) {
return mp_const_false;
}
return mp_const_true;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_has_pin_obj, mod_trezorconfig_has_pin);
/// def change_pin(pin: int, newpin: int, waitcallback: (int, int -> None)) -> bool:
/// '''
/// Change PIN. Returns True on success, False on failure.
/// '''
STATIC mp_obj_t mod_trezorconfig_change_pin(mp_obj_t pin, mp_obj_t newpin, mp_obj_t waitcallback) {
uint32_t pin_i = mp_obj_get_int(pin);
uint32_t newpin_i = mp_obj_get_int(newpin);
if (sectrue != storage_change_pin(pin_i, newpin_i, waitcallback)) {
return mp_const_false;
}
return mp_const_true;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_trezorconfig_change_pin_obj, mod_trezorconfig_change_pin);
/// def get(app: int, key: int, public: bool=False) -> bytes:
/// '''
/// Gets a value of given key for given app (or empty bytes if not set).
/// '''
STATIC mp_obj_t mod_trezorconfig_get(size_t n_args, const mp_obj_t *args) {
uint8_t app = mp_obj_get_int(args[0]) & 0x7F;
uint8_t key = mp_obj_get_int(args[1]);
if (n_args > 2 && args[2] == mp_const_true) {
app |= 0x80;
}
uint16_t appkey = (app << 8) | key;
uint16_t len = 0;
const void *val;
if (sectrue != storage_get(appkey, &val, &len) || len == 0) {
return mp_const_empty_bytes;
}
return mp_obj_new_bytes(val, len);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_get_obj, 2, 3, mod_trezorconfig_get);
/// def set(app: int, key: int, value: bytes, public: bool=False) -> None:
/// '''
/// Sets a value of given key for given app.
/// '''
STATIC mp_obj_t mod_trezorconfig_set(size_t n_args, const mp_obj_t *args) {
uint8_t app = mp_obj_get_int(args[0]) & 0x7F;
uint8_t key = mp_obj_get_int(args[1]);
if (n_args > 3 && args[3] == mp_const_true) {
app |= 0x80;
}
uint16_t appkey = (app << 8) | key;
mp_buffer_info_t value;
mp_get_buffer_raise(args[2], &value, MP_BUFFER_READ);
if (sectrue != storage_set(appkey, value.buf, value.len)) {
mp_raise_msg(&mp_type_RuntimeError, "Could not save value");
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_set_obj, 3, 4, mod_trezorconfig_set);
/// def wipe() -> None:
/// '''
/// Erases the whole config. Use with caution!
/// '''
STATIC mp_obj_t mod_trezorconfig_wipe(void) {
storage_wipe();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_wipe_obj, mod_trezorconfig_wipe);
STATIC const mp_rom_map_elem_t mp_module_trezorconfig_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_trezorconfig) },
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&mod_trezorconfig_init_obj) },
{ MP_ROM_QSTR(MP_QSTR_unlock), MP_ROM_PTR(&mod_trezorconfig_unlock_obj) },
{ MP_ROM_QSTR(MP_QSTR_has_pin), MP_ROM_PTR(&mod_trezorconfig_has_pin_obj) },
{ MP_ROM_QSTR(MP_QSTR_change_pin), MP_ROM_PTR(&mod_trezorconfig_change_pin_obj) },
{ MP_ROM_QSTR(MP_QSTR_get), MP_ROM_PTR(&mod_trezorconfig_get_obj) },
{ MP_ROM_QSTR(MP_QSTR_set), MP_ROM_PTR(&mod_trezorconfig_set_obj) },
{ MP_ROM_QSTR(MP_QSTR_wipe), MP_ROM_PTR(&mod_trezorconfig_wipe_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_trezorconfig_globals, mp_module_trezorconfig_globals_table);
const mp_obj_module_t mp_module_trezorconfig = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mp_module_trezorconfig_globals,
};
#endif // MICROPY_PY_TREZORCONFIG