vasilito
15d0707e74
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.
56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
use std::convert::TryInto;
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use serde::{Deserialize, Serialize};
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// This type is used instead of [pci_types::Bar] in the driver interface as the
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// latter can't be serialized and is missing the convenience functions of [PciBar].
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#[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize)]
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pub enum PciBar {
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None,
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Memory32 { addr: u32, size: u32 },
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Memory64 { addr: u64, size: u64 },
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Port(u16),
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}
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impl PciBar {
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pub fn display(&self) -> String {
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match self {
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PciBar::None => format!("<none>"),
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PciBar::Memory32 { addr, .. } => format!("{addr:08X}"),
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PciBar::Memory64 { addr, .. } => format!("{addr:016X}"),
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PciBar::Port(port) => format!("P{port:04X}"),
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}
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}
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pub fn is_none(&self) -> bool {
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match self {
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&PciBar::None => true,
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_ => false,
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}
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}
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pub fn expect_port(&self) -> u16 {
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match *self {
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PciBar::Port(port) => port,
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PciBar::Memory32 { .. } | PciBar::Memory64 { .. } => {
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panic!("expected port BAR, found memory BAR");
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}
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PciBar::None => panic!("expected BAR to exist"),
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}
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}
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pub fn expect_mem(&self) -> (usize, usize) {
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match *self {
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PciBar::Memory32 { addr, size } => (addr as usize, size as usize),
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PciBar::Memory64 { addr, size } => (
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addr.try_into()
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.expect("conversion from 64bit BAR to usize failed"),
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size.try_into()
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.expect("conversion from 64bit BAR size to usize failed"),
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),
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PciBar::Port(_) => panic!("expected memory BAR, found port BAR"),
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PciBar::None => panic!("expected BAR to exist"),
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}
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}
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}
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