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iPod S5L87xx bootloader: Add code for printing the bootloader hash

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Change-Id: I6921ef894e328e462ea3ca77266a1a30b7a75972
This commit is contained in:
Vencislav Atanasov 2025-07-07 01:08:59 +03:00
parent a20fe4a3ff
commit 8d5f7baefe
1 changed files with 75 additions and 0 deletions
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75
bootloader/ipod-s5l87xx.c
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@ -560,6 +560,79 @@ end:
sleep(HZ/100);
}
static void print_bootloader_hash(void)
{
lcd_clear_display();
lcd_set_foreground(LCD_WHITE);
line = 0;
struct Im3Info hinfo;
int rc = im3_read(NORBOOT_OFF, &hinfo, NULL);
if (rc != 0) {
printf("Error loading the primary bootloader: %d", rc);
goto end;
}
unsigned char primary_hash[SIGN_SZ];
memcpy(primary_hash, hinfo.u.enc12.data_sign, SIGN_SZ);
hwkeyaes(HWKEYAES_DECRYPT, HWKEYAES_UKEY, primary_hash, SIGN_SZ);
unsigned bl_nor_sz = im3_nor_sz(&hinfo);
rc = im3_read(NORBOOT_OFF + bl_nor_sz, &hinfo, NULL);
if (rc == 0) {
// Rockbox bootloader is installed as primary
// Stock bootloader is backed up
unsigned char backup_hash[SIGN_SZ];
memcpy(backup_hash, hinfo.u.enc12.data_sign, SIGN_SZ);
hwkeyaes(HWKEYAES_DECRYPT, HWKEYAES_UKEY, backup_hash, SIGN_SZ);
printf("Rockbox bootloader hash:");
for (int i = 0; i < SIGN_SZ; i++) {
lcd_putsf(i * 2, line, "%02X", primary_hash[i]);
}
line += 2;
lcd_update();
printf("Stock bootloader hash:");
for (int i = 0; i < SIGN_SZ; i++) {
lcd_putsf(i * 2, line, "%02X", backup_hash[i]);
}
line++;
lcd_update();
}
else {
// Stock bootloader is installed as primary
// No backup bootloader
printf("Rockbox bootloader is not installed!");
line++;
printf("Stock bootloader hash:");
for (int i = 0; i < SIGN_SZ; i++) {
lcd_putsf(i * 2, line, "%02X", primary_hash[i]);
}
line++;
lcd_update();
}
end:
line++;
while (button_status() != BUTTON_NONE)
sleep(HZ/100);
lcd_set_foreground(LCD_RBYELLOW);
printf("Press SELECT to continue");
while (button_status() != BUTTON_SELECT)
sleep(HZ/100);
}
#ifdef HAVE_SERIAL
#define FLASH_PAGES (FLASH_SIZE >> 12)
@ -610,6 +683,7 @@ static void devel_menu(void)
"GPIO info",
#if defined(IPOD_6G) || defined(IPOD_NANO3G)
"Show SysCfg",
"Show bootloader hash",
#ifdef HAVE_SERIAL
"Dump bootflash to UART",
#endif
@ -627,6 +701,7 @@ static void devel_menu(void)
gpio_info,
#if defined(IPOD_6G) || defined(IPOD_NANO3G)
print_syscfg,
print_bootloader_hash,
#ifdef HAVE_SERIAL
dump_bootflash,
#endif