mirror of
https://github.com/tillitis/tillitis-key1.git
synced 2025-07-24 23:46:27 -04:00
114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/*
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* Copyright (C) 2022, 2023 - Tillitis AB
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#include <stdint.h>
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#include <tkey/assert.h>
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#include <tkey/debug.h>
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#include <tkey/io.h>
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#include <tkey/led.h>
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#include <tkey/lib.h>
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#include <tkey/tk1_mem.h>
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#include "../tk1/proto.h"
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#include "../tk1/syscall_num.h"
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#include "../tk1/resetinfo.h"
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#include "../tk1/syscall.h"
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#include "../tk1/syscall_num.h"
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// Converts a single hex character to its integer value
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static uint8_t hex_char_to_byte(uint8_t c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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return 0; // Invalid character, should not happen if input is valid
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}
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// Converts a 64-char hex string into a 32-byte array
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int hex_string_to_bytes(uint8_t *hex_str, uint8_t *out_bytes, size_t out_len)
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{
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if (!hex_str || !out_bytes || out_len < 32)
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return -1; // Error handling
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for (size_t i = 0; i < 32; i++) {
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out_bytes[i] = (hex_char_to_byte(hex_str[i * 2]) << 4) | hex_char_to_byte(hex_str[i * 2 + 1]);
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}
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return 0; // Success
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}
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//---------------------------------------
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#define BUFSIZE 32
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int main(void)
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{
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uint8_t available = 0;
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uint8_t cmdbuf[BUFSIZE] = { 0 };
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enum ioend endpoint = IO_NONE;
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led_set(LED_BLUE);
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while(1) {
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debug_puts("Waiting for command\n");
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memset(cmdbuf, 0, BUFSIZE);
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// Wait for data
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if (readselect(IO_TKEYCTRL, &endpoint, &available) < 0) {
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assert(1 == 2);
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}
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if (read(IO_TKEYCTRL, cmdbuf, BUFSIZE, available) < 0) {
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// read failed! I/O broken? Just redblink.
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assert(1 == 2);
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}
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switch (cmdbuf[0]) {
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case '1': {
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syscall(TK1_SYSCALL_RESET, 0);
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}
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break;
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case '2': {
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struct reset rst = { 0 };
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rst.type = LOAD_APP_FROM_HOST;
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syscall(TK1_SYSCALL_RESET_WITH_INTENT, (uint32_t)&rst);
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}
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break;
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case '3': {
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struct reset rst = { 0 };
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rst.type = LOAD_APP_FROM_FLASH;
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syscall(TK1_SYSCALL_RESET_WITH_INTENT, (uint32_t)&rst);
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}
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break;
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case '4': {
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struct reset rst = { 0 };
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uint8_t string[] = "83da11b65f9c3721879bc4d9cffa6eac2368dcd9562aedde4002e6108ac939b3";
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rst.type = LOAD_APP_FROM_HOST_WITH_DIGEST;
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hex_string_to_bytes(string, (uint8_t *)&rst.app_digest, sizeof(rst.app_digest));
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syscall(TK1_SYSCALL_RESET_WITH_INTENT, (uint32_t)&rst);
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}
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break;
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case '5': {
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struct reset rst = { 0 };
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uint8_t string[] = "ef1337a922945fd87683b71ed275e02af44b3489057a29d14fd78daff8b73a28";
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rst.type = LOAD_APP_FROM_HOST_WITH_DIGEST;
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hex_string_to_bytes(string, (uint8_t *)&rst.app_digest, sizeof(rst.app_digest));
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syscall(TK1_SYSCALL_RESET_WITH_INTENT, (uint32_t)&rst);
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}
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break;
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default: {
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}
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break;
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}
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}
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}
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