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fix recursive device_path algorithm

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This commit is contained in:
slonkazoid 2024-08-01 21:21:49 +03:00
parent 9f26c8f50d
commit 11c0ef4db8
Signed by: slonk
SSH key fingerprint: SHA256:tbZfJX4IOvZ0LGWOWu5Ijo8jfMPi78TU7x1VoEeCIjM
2 changed files with 22 additions and 20 deletions
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41
src/device_path.rs
View file

@ -9,28 +9,29 @@ fn recurse_device_path(
mut uuid: Option<u128>,
mut path: Option<String>,
) -> (Option<u128>, Option<String>) {
match dbg!(&a.info) {
DevicePathInfo::HardDrive {
partition_signature,
signature_type,
..
} => {
if matches!(signature_type, DevicePathInfoHardDriveSignatureType::Guid) {
let mut sig = [0u8; 16];
partition_signature
.as_slice()
.read_exact(&mut sig)
.expect("expected 128-bit Guid");
uuid = Some(fixup_uuid(u128::from_be_bytes(sig)));
}
}
DevicePathInfo::FilePath { path: _path } => {
path = Some(_path.clone());
}
_ => {}
}
match a.next {
Some(next) => {
match &next.info {
DevicePathInfo::HardDrive {
partition_signature,
signature_type,
..
} => {
if matches!(signature_type, DevicePathInfoHardDriveSignatureType::Guid) {
let mut sig = [0u8; 16];
partition_signature
.as_slice()
.read_exact(&mut sig)
.expect("expected 128-bit Guid");
uuid = Some(fixup_uuid(u128::from_be_bytes(sig)));
}
}
DevicePathInfo::FilePath { path: _path } => {
path = Some(_path.clone());
}
_ => {}
}
return recurse_device_path(*next, uuid, path);
}
None => return (uuid, path),

1
src/main.rs
View file

@ -122,6 +122,7 @@ fn main() -> eyre::Result<()> {
&& let Some(device_path) = device_path
{
let (uuid, path) = traverse_device_path(device_path);
eprintln!("devicepath uuid: {uuid:?}, path: {path:?}");
let windows_path_str = if let Some(windows_path_str) = path {
windows_path_str