mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-19 05:58:09 +00:00
220 lines
8.0 KiB
C
220 lines
8.0 KiB
C
/*
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* This file is part of the TREZOR project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "py/objstr.h"
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#if MICROPY_PY_TREZORCONFIG
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#include "embed/extmod/trezorobj.h"
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#include "storage.h"
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#include "utils.h"
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STATIC mp_obj_t ui_wait_callback = mp_const_none;
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STATIC void wrapped_ui_wait_callback(uint32_t wait, uint32_t progress) {
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if (mp_obj_is_callable(ui_wait_callback)) {
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mp_call_function_2(ui_wait_callback, mp_obj_new_int(wait), mp_obj_new_int(progress));
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}
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}
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/// def init(ui_wait_callback: (int, int -> None)=None) -> None:
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/// '''
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/// Initializes the storage. Must be called before any other method is
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/// called from this module!
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/// '''
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STATIC mp_obj_t mod_trezorconfig_init(size_t n_args, const mp_obj_t *args) {
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uint32_t salt[] = {
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utils_get_uid_word0(),
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utils_get_uid_word1(),
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utils_get_uid_word2()
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};
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if (n_args > 0) {
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ui_wait_callback = args[0];
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storage_init(wrapped_ui_wait_callback, (const uint8_t*)salt, sizeof(salt));
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} else {
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storage_init(NULL, (const uint8_t*)salt, sizeof(salt));
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_init_obj, 0, 1, mod_trezorconfig_init);
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/// def check_pin(pin: int) -> bool:
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/// '''
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/// Check the given PIN. Returns True on success, False on failure.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_check_pin(mp_obj_t pin) {
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uint32_t pin_i = trezor_obj_get_uint(pin);
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if (sectrue != storage_unlock(pin_i)) {
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return mp_const_false;
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}
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return mp_const_true;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorconfig_check_pin_obj, mod_trezorconfig_check_pin);
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/// def unlock(pin: int) -> bool:
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/// '''
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/// Attempts to unlock the storage with given PIN. Returns True on
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/// success, False on failure.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_unlock(mp_obj_t pin) {
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uint32_t pin_i = trezor_obj_get_uint(pin);
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if (sectrue != storage_unlock(pin_i)) {
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return mp_const_false;
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}
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return mp_const_true;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorconfig_unlock_obj, mod_trezorconfig_unlock);
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/// def has_pin() -> bool:
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/// '''
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/// Returns True if storage has a configured PIN, False otherwise.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_has_pin(void) {
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if (sectrue != storage_has_pin()) {
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return mp_const_false;
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}
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return mp_const_true;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_has_pin_obj, mod_trezorconfig_has_pin);
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/// def get_pin_rem() -> int:
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/// '''
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/// Returns the number of remaining PIN entry attempts.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_get_pin_rem(void) {
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return mp_obj_new_int_from_uint(storage_get_pin_rem());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_get_pin_rem_obj, mod_trezorconfig_get_pin_rem);
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/// def change_pin(pin: int, newpin: int) -> bool:
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/// '''
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/// Change PIN. Returns True on success, False on failure.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_change_pin(mp_obj_t pin, mp_obj_t newpin) {
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uint32_t pin_i = trezor_obj_get_uint(pin);
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uint32_t newpin_i = trezor_obj_get_uint(newpin);
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if (sectrue != storage_change_pin(pin_i, newpin_i)) {
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return mp_const_false;
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}
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return mp_const_true;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorconfig_change_pin_obj, mod_trezorconfig_change_pin);
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/// def get(app: int, key: int, public: bool=False) -> bytes:
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/// '''
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/// Gets the value of the given key for the given app (or None if not set).
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/// Raises a RuntimeError if decryption or authentication of the stored value fails.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_get(size_t n_args, const mp_obj_t *args) {
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uint8_t app = trezor_obj_get_uint8(args[0]) & 0x7F;
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uint8_t key = trezor_obj_get_uint8(args[1]);
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if (n_args > 2 && args[2] == mp_const_true) {
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app |= 0x80;
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}
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uint16_t appkey = (app << 8) | key;
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uint16_t len = 0;
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if (sectrue != storage_get(appkey, NULL, 0, &len)) {
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return mp_const_none;
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}
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if (len == 0) {
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return mp_const_empty_bytes;
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}
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vstr_t vstr;
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vstr_init_len(&vstr, len);
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if (sectrue != storage_get(appkey, vstr.buf, vstr.len, &len)) {
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vstr_clear(&vstr);
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mp_raise_msg(&mp_type_RuntimeError, "Failed to get value from storage.");
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}
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return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_get_obj, 2, 3, mod_trezorconfig_get);
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/// def set(app: int, key: int, value: bytes, public: bool=False) -> None:
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/// '''
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/// Sets a value of given key for given app.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_set(size_t n_args, const mp_obj_t *args) {
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uint8_t app = trezor_obj_get_uint8(args[0]) & 0x7F;
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uint8_t key = trezor_obj_get_uint8(args[1]);
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if (n_args > 3 && args[3] == mp_const_true) {
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app |= 0x80;
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}
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uint16_t appkey = (app << 8) | key;
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mp_buffer_info_t value;
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mp_get_buffer_raise(args[2], &value, MP_BUFFER_READ);
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if (sectrue != storage_set(appkey, value.buf, value.len)) {
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mp_raise_msg(&mp_type_RuntimeError, "Could not save value");
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_set_obj, 3, 4, mod_trezorconfig_set);
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/// def delete(app: int, key: int, public: bool=False) -> bool:
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/// '''
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/// Deletes the given key of the given app.
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/// '''
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STATIC mp_obj_t mod_trezorconfig_delete(size_t n_args, const mp_obj_t *args) {
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uint8_t app = trezor_obj_get_uint8(args[0]) & 0x7F;
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uint8_t key = trezor_obj_get_uint8(args[1]);
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if (n_args > 2 && args[2] == mp_const_true) {
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app |= 0x80;
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}
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uint16_t appkey = (app << 8) | key;
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if (sectrue != storage_delete(appkey)) {
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return mp_const_false;
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}
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return mp_const_true;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorconfig_delete_obj, 2, 3, mod_trezorconfig_delete);
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/// def wipe() -> None:
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/// '''
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/// Erases the whole config. Use with caution!
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/// '''
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STATIC mp_obj_t mod_trezorconfig_wipe(void) {
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storage_wipe();
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_wipe_obj, mod_trezorconfig_wipe);
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STATIC const mp_rom_map_elem_t mp_module_trezorconfig_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_trezorconfig) },
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{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&mod_trezorconfig_init_obj) },
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{ MP_ROM_QSTR(MP_QSTR_check_pin), MP_ROM_PTR(&mod_trezorconfig_check_pin_obj) },
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{ MP_ROM_QSTR(MP_QSTR_unlock), MP_ROM_PTR(&mod_trezorconfig_unlock_obj) },
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{ MP_ROM_QSTR(MP_QSTR_has_pin), MP_ROM_PTR(&mod_trezorconfig_has_pin_obj) },
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{ MP_ROM_QSTR(MP_QSTR_get_pin_rem), MP_ROM_PTR(&mod_trezorconfig_get_pin_rem_obj) },
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{ MP_ROM_QSTR(MP_QSTR_change_pin), MP_ROM_PTR(&mod_trezorconfig_change_pin_obj) },
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{ MP_ROM_QSTR(MP_QSTR_get), MP_ROM_PTR(&mod_trezorconfig_get_obj) },
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{ MP_ROM_QSTR(MP_QSTR_set), MP_ROM_PTR(&mod_trezorconfig_set_obj) },
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{ MP_ROM_QSTR(MP_QSTR_delete), MP_ROM_PTR(&mod_trezorconfig_delete_obj) },
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{ MP_ROM_QSTR(MP_QSTR_wipe), MP_ROM_PTR(&mod_trezorconfig_wipe_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_trezorconfig_globals, mp_module_trezorconfig_globals_table);
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const mp_obj_module_t mp_module_trezorconfig = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&mp_module_trezorconfig_globals,
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};
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#endif // MICROPY_PY_TREZORCONFIG
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