kopia lustrzana https://github.com/solokeys/solo1
86 wiersze
2.9 KiB
C
86 wiersze
2.9 KiB
C
// Copyright 2019 SoloKeys Developers
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//
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// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
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// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
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// http://opensource.org/licenses/MIT>, at your option. This file may not be
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// copied, modified, or distributed except according to those terms.
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#ifndef _MEMORY_LAYOUT_H_
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#define _MEMORY_LAYOUT_H_
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#define PAGE_SIZE 2048
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#define PAGES 128
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// Pages 119-127 are data
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// Location of counter page and it's backup page
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// The flash is wear leveled and counter should be fault tolerant
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#define COUNTER2_PAGE (PAGES - 4)
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#define COUNTER1_PAGE (PAGES - 3)
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// State of FIDO2 application
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#define STATE2_PAGE (PAGES - 2)
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#define STATE1_PAGE (PAGES - 1)
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#define STATE1_PAGE_ADDR (0x08000000 + ((STATE1_PAGE)*PAGE_SIZE))
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#define STATE2_PAGE_ADDR (0x08000000 + ((STATE2_PAGE)*PAGE_SIZE))
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// Storage of FIDO2 resident keys
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#define RK_NUM_PAGES 10
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#define RK_START_PAGE (PAGES - 14)
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#define RK_END_PAGE (PAGES - 14 + RK_NUM_PAGES) // not included
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// Start of application code
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#ifndef APPLICATION_START_PAGE
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#define APPLICATION_START_PAGE (10)
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#endif
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#define APPLICATION_START_ADDR (0x08000000 + ((APPLICATION_START_PAGE)*PAGE_SIZE))
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// where attestation key is located
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#define ATTESTATION_PAGE (PAGES - 15)
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#define ATTESTATION_PAGE_ADDR (0x08000000 + ATTESTATION_PAGE*PAGE_SIZE)
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// End of application code. Leave some extra room for future data storage.
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// NOT included in application
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#define APPLICATION_END_PAGE ((PAGES - 20))
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#define APPLICATION_END_ADDR ((0x08000000 + ((APPLICATION_END_PAGE)*PAGE_SIZE))-8)
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// Bootloader state.
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#define AUTH_WORD_ADDR (APPLICATION_END_ADDR)
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#define LAST_ADDR (APPLICATION_END_ADDR-2048 + 8)
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#define BOOT_VERSION_PAGE (APPLICATION_END_PAGE)
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#define BOOT_VERSION_ADDR (0x08000000 + BOOT_VERSION_PAGE*FLASH_PAGE_SIZE + 8)
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#define LAST_PAGE (APPLICATION_END_PAGE-1)
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struct flash_memory_st{
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uint8_t bootloader[APPLICATION_START_PAGE*2*1024];
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uint8_t application[(APPLICATION_END_PAGE-APPLICATION_START_PAGE)*2*1024-8];
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uint8_t auth_word[4];
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uint8_t bootloader_disabled[4];
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// place for more user data
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uint8_t _reserved_application_end_mark[8];
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uint8_t bootloader_data[2*1024-8];
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uint8_t user_data[38*1024];
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} __attribute__((packed));
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typedef struct flash_memory_st flash_memory_st;
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#include <assert.h>
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static_assert(sizeof(flash_memory_st) == 256*1024, "Data structure doesn't match flash size");
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#define ATTESTATION_CONFIGURED_TAG 0xaa551e79
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struct flash_attestation_page{
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uint8_t attestation_key[32];
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// DWORD padded.
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uint64_t device_settings;
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uint64_t attestation_cert_size;
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uint8_t attestation_cert[2048 - 32 - 8 - 8];
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} __attribute__((packed));
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typedef struct flash_attestation_page flash_attestation_page;
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static_assert(sizeof(flash_attestation_page) == 2048, "Data structure doesn't match flash size");
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#endif
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