vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
use std::{error::Error, fs};
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use super::Backend;
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pub struct DeviceTreeBackend {
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dtb: Vec<u8>,
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}
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impl DeviceTreeBackend {
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fn dump(node: &fdt::node::FdtNode<'_, '_>, level: usize) {
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let mut line = String::new();
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for _ in 0..level {
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line.push_str(" ");
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}
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line.push_str(node.name);
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if let Some(compatible) = node.compatible() {
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line.push_str(":");
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for id in compatible.all() {
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line.push_str(" ");
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line.push_str(id);
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}
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}
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log::debug!("{}", line);
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for child in node.children() {
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Self::dump(&child, level + 1);
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}
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}
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}
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impl Backend for DeviceTreeBackend {
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fn new() -> Result<Self, Box<dyn Error>> {
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let dtb = fs::read("/scheme/kernel.dtb")?;
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let dt = fdt::Fdt::new(&dtb).map_err(|err| format!("failed to parse dtb: {}", err))?;
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Ok(Self { dtb })
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}
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fn probe(&mut self) -> Result<(), Box<dyn Error>> {
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let dt = fdt::Fdt::new(&self.dtb).map_err(|err| format!("failed to parse dtb: {}", err))?;
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let root = dt
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.find_node("/")
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.ok_or_else(|| format!("failed to find root node"))?;
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Self::dump(&root, 0);
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Ok(())
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}
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}
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