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[SC64][SW] Added warning about unknown variant of IPL3

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This commit is contained in:
Mateusz Faderewski 2025-03-12 22:36:26 +01:00
parent b520f9ace8
commit e4c3f34fb0
3 changed files with 55 additions and 34 deletions
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22
sw/deployer/src/main.rs
View File

@ -501,7 +501,16 @@ fn handle_upload_command(connection: Connection, args: &UploadArgs) -> Result<()
sc64.set_tv_type(tv_type)?;
}
sc64.calculate_cic_parameters(args.cic_seed)?;
let (seed, checksum, matched) = sc64.calculate_cic_parameters(args.cic_seed)?;
if !matched {
println!(
"{}",
"Warning: IPL3 in the ROM does not match any known variant. It may fail to boot."
.bright_yellow(),
);
println!("IPL3 has been automatically signed with the parameters listed below:");
println!("[seed = 0x{seed:02X} | checksum = 0x{checksum:012X}]");
}
if args.reboot && !sc64.try_notify_via_aux(sc64::AuxMessage::Reboot)? {
println!(
@ -616,7 +625,16 @@ fn handle_64dd_command(connection: Connection, args: &_64DDArgs) -> Result<(), s
sc64.set_tv_type(tv_type)?;
}
sc64.calculate_cic_parameters(args.cic_seed)?;
let (seed, checksum, matched) = sc64.calculate_cic_parameters(args.cic_seed)?;
if !matched {
println!(
"{}",
"Warning: IPL3 in the ROM does not match any known variant. It may fail to boot."
.bright_yellow(),
);
println!("IPL3 has been automatically signed with the parameters listed below:");
println!("[seed = 0x{seed:02X} | checksum = 0x{checksum:012X}]");
}
if args.disk.len() == 0 {
let dd_mode = sc64::DdMode::DdIpl;

58
sw/deployer/src/sc64/cic.rs
View File

@ -110,35 +110,35 @@ fn calculate_ipl3_checksum(ipl3: &[u8], seed: u8) -> Result<u64, Error> {
Ok(checksum)
}
pub fn sign_ipl3(ipl3: &[u8], custom_seed: Option<u8>) -> Result<(u8, u64), Error> {
pub fn sign_ipl3(ipl3: &[u8], custom_seed: Option<u8>) -> Result<(u8, u64, bool), Error> {
if let Some(seed) = custom_seed {
Ok((seed, calculate_ipl3_checksum(ipl3, seed)?))
} else {
let known_seed_checksum_pairs = [
(0xDD, 0x083C6C77E0B1u64), // 5167
(0x3F, 0x45CC73EE317Au64), // 6101
(0x3F, 0x44160EC5D9AFu64), // 7102
(0x3F, 0xA536C0F1D859u64), // 6102/7102
(0x78, 0x586FD4709867u64), // 6103/7103
(0x91, 0x8618A45BC2D3u64), // 6105/7105
(0x85, 0x2BBAD4E6EB74u64), // 6106/7106
(0xDD, 0x6EE8D9E84970u64), // NDXJ0
(0xDD, 0x6C216495C8B9u64), // NDDJ0
(0xDD, 0xE27F43BA93ACu64), // NDDJ1
(0xDD, 0x32B294E2AB90u64), // NDDJ2
(0xDE, 0x05BA2EF0A5F1u64), // NDDE0
];
for (seed, checksum) in known_seed_checksum_pairs {
if calculate_ipl3_checksum(ipl3, seed)? == checksum {
return Ok((seed, checksum));
}
}
// Unknown IPL3 detected, sign it with arbitrary seed (CIC6102/7101 value is used here)
const DEFAULT_SEED: u8 = 0x3F;
let checksum = calculate_ipl3_checksum(ipl3, DEFAULT_SEED)?;
Ok((DEFAULT_SEED, checksum))
return Ok((seed, calculate_ipl3_checksum(ipl3, seed)?, true));
}
let known_seed_checksum_pairs = [
(0xDD, 0x083C6C77E0B1u64), // 5167
(0x3F, 0x45CC73EE317Au64), // 6101
(0x3F, 0x44160EC5D9AFu64), // 7102
(0x3F, 0xA536C0F1D859u64), // 6102/7102
(0x78, 0x586FD4709867u64), // 6103/7103
(0x91, 0x8618A45BC2D3u64), // 6105/7105
(0x85, 0x2BBAD4E6EB74u64), // 6106/7106
(0xDD, 0x6EE8D9E84970u64), // NDXJ0
(0xDD, 0x6C216495C8B9u64), // NDDJ0
(0xDD, 0xE27F43BA93ACu64), // NDDJ1
(0xDD, 0x32B294E2AB90u64), // NDDJ2
(0xDE, 0x05BA2EF0A5F1u64), // NDDE0
];
for (seed, checksum) in known_seed_checksum_pairs {
if calculate_ipl3_checksum(ipl3, seed)? == checksum {
return Ok((seed, checksum, true));
}
}
// Unknown IPL3 detected, sign it with arbitrary seed (CIC6102/7101 value is used here)
const DEFAULT_SEED: u8 = 0x3F;
let checksum = calculate_ipl3_checksum(ipl3, DEFAULT_SEED)?;
Ok((DEFAULT_SEED, checksum, false))
}

9
sw/deployer/src/sc64/mod.rs
View File

@ -488,7 +488,10 @@ impl SC64 {
self.memory_read_chunked(writer, address, length)
}
pub fn calculate_cic_parameters(&mut self, custom_seed: Option<u8>) -> Result<(), Error> {
pub fn calculate_cic_parameters(
&mut self,
custom_seed: Option<u8>,
) -> Result<(u8, u64, bool), Error> {
let (address, cic_seed, boot_seed) = match get_config!(self, BootMode)? {
BootMode::Menu => (BOOTLOADER_ADDRESS, None, None),
BootMode::Rom => (BOOTLOADER_ADDRESS, None, custom_seed),
@ -497,12 +500,12 @@ impl SC64 {
BootMode::DirectDdIpl => (DDIPL_ADDRESS, custom_seed, None),
};
let ipl3 = self.command_memory_read(address + IPL3_OFFSET, IPL3_LENGTH)?;
let (seed, checksum) = sign_ipl3(&ipl3, cic_seed)?;
let (seed, checksum, matched) = sign_ipl3(&ipl3, cic_seed)?;
self.command_cic_params_set(false, seed, checksum)?;
if let Some(seed) = boot_seed {
self.command_config_set(Config::CicSeed(CicSeed::Seed(seed)))?;
}
Ok(())
Ok((seed, checksum, matched))
}
pub fn set_boot_mode(&mut self, boot_mode: BootMode) -> Result<(), Error> {