mirror of
https://github.com/trezor/trezor-firmware.git
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70 lines
2.0 KiB
C
70 lines
2.0 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) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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 library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SIGNATURES_H__
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#define __SIGNATURES_H__
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#include <stdbool.h>
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#include <stdint.h>
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extern const uint32_t FIRMWARE_MAGIC_OLD; // TRZR
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extern const uint32_t FIRMWARE_MAGIC_NEW; // TRZF
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#define SIG_OK 0x5A3CA5C3
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#define SIG_FAIL 0x00000000
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bool firmware_present_old(void);
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int signatures_old_ok(void);
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// we use the same structure as T2 firmware header
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// but we don't use the field sig
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// and rather introduce fields sig1, sig2, sig3
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// immediately following the chunk hashes
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typedef struct {
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uint32_t magic;
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uint32_t hdrlen;
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uint32_t expiry;
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uint32_t codelen;
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uint32_t version;
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uint32_t fix_version;
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uint8_t __reserved1[8];
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uint8_t hashes[512];
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uint8_t sig1[64];
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uint8_t sig2[64];
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uint8_t sig3[64];
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uint8_t sigindex1;
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uint8_t sigindex2;
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uint8_t sigindex3;
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uint8_t __reserved2[220];
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uint8_t __sigmask;
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uint8_t __sig[64];
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} __attribute__((packed)) image_header;
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#define FW_CHUNK_SIZE 65536
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bool firmware_present_new(void);
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void compute_firmware_fingerprint(const image_header *hdr, uint8_t hash[32]);
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int signatures_new_ok(const image_header *hdr, uint8_t store_fingerprint[32]);
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int check_firmware_hashes(const image_header *hdr);
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int mem_is_empty(const uint8_t *src, uint32_t len);
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#endif
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