mirror of
https://github.com/trezor/trezor-firmware.git
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96 lines
3.3 KiB
C
96 lines
3.3 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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#ifndef __STORAGE_H__
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#define __STORAGE_H__
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#include <stddef.h>
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#include <stdint.h>
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#include "secbool.h"
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// The length of the external salt in bytes.
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#define EXTERNAL_SALT_SIZE 32
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// If the top bit of APP is set, then the value is not encrypted.
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#define FLAG_PUBLIC 0x80
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// If the top two bits of APP are set, then the value is not encrypted and it
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// can be written even when the storage is locked.
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#define FLAGS_WRITE 0xC0
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// The maximum value of app_id which is the six least significant bits of APP.
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#define MAX_APPID 0x3F
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// The PIN value corresponding to an empty PIN.
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extern const uint8_t *PIN_EMPTY;
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#define PIN_EMPTY_LEN 0
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// Maximum number of failed unlock attempts.
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// NOTE: The PIN counter logic relies on this constant being less than or equal
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// to 16.
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#define PIN_MAX_TRIES 16
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// The length of the random salt in bytes.
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#if USE_OPTIGA
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#define STORAGE_SALT_SIZE 32
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#else
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#define STORAGE_SALT_SIZE 4
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#endif
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enum storage_ui_message_t {
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NO_MSG = 0,
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VERIFYING_PIN_MSG,
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PROCESSING_MSG,
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STARTING_MSG,
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WRONG_PIN_MSG,
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};
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typedef secbool (*PIN_UI_WAIT_CALLBACK)(uint32_t wait, uint32_t progress,
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enum storage_ui_message_t message);
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void storage_init(PIN_UI_WAIT_CALLBACK callback, const uint8_t *salt,
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const uint16_t salt_len);
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void storage_wipe(void);
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secbool storage_is_unlocked(void);
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void storage_lock(void);
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secbool storage_unlock(const uint8_t *pin, size_t pin_len,
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const uint8_t *ext_salt);
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secbool storage_has_pin(void);
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secbool storage_pin_fails_increase(void);
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uint32_t storage_get_pin_rem(void);
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secbool storage_change_pin(const uint8_t *oldpin, size_t oldpin_len,
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const uint8_t *newpin, size_t newpin_len,
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const uint8_t *old_ext_salt,
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const uint8_t *new_ext_salt);
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void storage_ensure_not_wipe_code(const uint8_t *pin, size_t pin_len);
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secbool storage_has_wipe_code(void);
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secbool storage_change_wipe_code(const uint8_t *pin, size_t pin_len,
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const uint8_t *ext_salt,
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const uint8_t *wipe_code,
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size_t wipe_code_len);
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secbool storage_has(const uint16_t key);
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secbool storage_get(const uint16_t key, void *val, const uint16_t max_len,
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uint16_t *len);
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secbool storage_set(const uint16_t key, const void *val, const uint16_t len);
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secbool storage_delete(const uint16_t key);
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secbool storage_set_counter(const uint16_t key, const uint32_t count);
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secbool storage_next_counter(const uint16_t key, uint32_t *count);
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#endif
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