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https://github.com/trezor/trezor-firmware.git
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48 lines
1.4 KiB
C
48 lines
1.4 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 TREZORHAL_MONOCTR
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#define TREZORHAL_MONOCTR
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#ifdef KERNEL_MODE
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// Monoctr module provides monotonic counter functionality
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#define MONOCTR_MAX_VALUE 63
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#include <stdint.h>
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#include "secbool.h"
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typedef enum {
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MONOCTR_BOOTLOADER_VERSION = 0,
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MONOCTR_FIRMWARE_VERSION = 1,
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} monoctr_type_t;
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// Write a new value to the monotonic counter
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// Returns sectrue on success, when value is lower than the current value
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// the write fails and returns secfalse
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secbool monoctr_write(monoctr_type_t type, uint8_t value);
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// Read the current value of the monotonic counter
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secbool monoctr_read(monoctr_type_t type, uint8_t* value);
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#endif // KERNEL_MODE
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#endif
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