mirror of
https://github.com/trezor/trezor-firmware.git
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65 lines
2.4 KiB
C
65 lines
2.4 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_FWUTILS_H
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#define TREZORHAL_FWUTILS_H
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#include <trezor_types.h>
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// Callback function for firmware hash calculation.
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typedef void (*firmware_hash_callback_t)(void* context, uint32_t progress,
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uint32_t total);
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// Calculates hash of the firmware area.
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//
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// `challenge` is a optional pointer to the challenge data.
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// `challenge_len` is the length of the challenge data (1..32).
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// `hash` is a pointer to a buffer where the hash will be stored.
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// `hash_len` is size of the buffer (must be at least 32).
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// `callback` is an optional callback function that will be called during the
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// hash calculation.
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// `callback_context` is a pointer that will be passed to the callback function.
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//
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// Returns `sectrue` if the hash was calculated successfully, `secfalse`
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// otherwise.
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secbool firmware_calc_hash(const uint8_t* challenge, size_t challenge_len,
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uint8_t* hash, size_t hash_len,
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firmware_hash_callback_t callback,
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void* callback_context);
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// Reads the firmware vendor string from the header in the firmware area.
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//
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// `buff` is a pointer to a buffer where the vendor string will be stored.
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// `buff_size` is the length of the buffer (reserve at least 64 bytes).
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//
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// Returns `sectrue` if the vendor string was read successfully, `secfalse`
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// otherwise.
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secbool firmware_get_vendor(char* buff, size_t buff_size);
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#ifdef KERNEL_MODE
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// Invalidates the firmware by erasing the first 1KB of the firmware area.
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//
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// Note: only works when write access to firmware area is enabled by MPU
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void firmware_invalidate_header(void);
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#endif // KERNEL_MODE
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#endif // TREZORHAL_FWUTILS_H
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