feat: atomic patch application, colored init output, XKB bridge, USB HID hardening

Build system (src/cook/fetch.rs):
- Atomic patch application: applies patches to staging directory (cp -al),
  atomically swaps on success, discards on failure — source tree is never
  left in a partially-patched state
- normalize_patch(): strips diff --git/index/new-file-mode headers that the
  build system's patch command does not recognize
- cleanup_workspace_pollution(): removes orphaned recipes/Cargo.toml and
  recipes/Cargo.lock to prevent workspace conflicts
- Added --allow-protected CLI flag to repo binary

Input stack (local/patches/base/P3-*.patch):
- P3-ps2d-led-feedback: PS/2 LED state handling + InputProducer migration
- P3-inputd-keymap-bridge: InputProducer enum, keymap bridge query
- P3-usbhidd-hardening: HID descriptor validation, static lookup table,
  8-button mouse support, transfer retry with exponential backoff
- P3-init-colored-output: ANSI-color coded init daemon output (green OK,
  red FAILED, yellow SKIP/WARN)

XKB bridge (local/recipes/system/redbear-keymapd/source/src/xkb.rs):
- Parses X11 xkb/symbols/* format, maps XKB keycodes to PS/2 scancodes,
  80+ X11 keysym names to Unicode, 4-level key support

Patch governance (local/patches/base/absorbed/README.md):
- Documents consolidation of P0-P3 patches into redox.patch
This commit is contained in:
2026-05-03 08:21:54 +01:00
parent 7b48083a14
commit aca2f2913d
13 changed files with 2920 additions and 40 deletions
@@ -0,0 +1,248 @@
use std::collections::HashMap;
use std::io;
use syscall::data::Stat;
use syscall::error::{Error, Result, EBADF, EINVAL, ENOENT};
use syscall::flag::{MODE_DIR, MODE_FILE, SEEK_CUR, SEEK_END, SEEK_SET};
use crate::keymap::Keymap;
enum HandleKind {
Root,
Active,
List,
Keymap { name: String },
}
struct Handle {
kind: HandleKind,
offset: usize,
}
pub struct KeymapScheme {
next_id: usize,
handles: HashMap<usize, Handle>,
keymaps: HashMap<String, Keymap>,
active_keymap: String,
}
impl KeymapScheme {
pub fn new() -> Self {
KeymapScheme {
next_id: 0,
handles: HashMap::new(),
keymaps: HashMap::new(),
active_keymap: "us".to_string(),
}
}
pub fn load_builtin(&mut self, builtins: &crate::keymap::BuiltinKeymaps) {
for (name, km) in [
("us", &builtins.us),
("gb", &builtins.gb),
("dvorak", &builtins.dvorak),
("azerty", &builtins.azerty),
("bepo", &builtins.bepo),
("it", &builtins.it),
] {
self.keymaps.insert(name.to_string(), km.clone());
}
}
pub fn load_from_dir(&mut self, dir: &str) -> io::Result<()> {
let entries = std::fs::read_dir(dir)?;
for entry in entries {
let entry = entry?;
let path = entry.path();
if path.extension().map_or(false, |e| e == "json") {
let name = path
.file_stem()
.and_then(|s| s.to_str())
.unwrap_or("unknown")
.to_string();
let json_str = std::fs::read_to_string(&path)?;
if let Ok(km) = Keymap::from_json(&name, &json_str) {
self.keymaps.insert(name, km);
}
}
}
Ok(())
}
pub fn load_xkb(&mut self, xkb_dir: &str, layout: &str, variant: Option<&str>) -> io::Result<()> {
let km = crate::xkb::load_xkb_keymap(xkb_dir, layout, variant)
.map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
let name = match variant {
Some(v) => format!("{}({})", layout, v),
None => layout.to_string(),
};
self.keymaps.insert(name, km);
Ok(())
}
pub fn keymap_count(&self) -> usize {
self.keymaps.len()
}
fn active_keymap(&self) -> &Keymap {
self.keymaps
.get(&self.active_keymap)
.or_else(|| self.keymaps.get("us"))
.expect("at least one keymap must be loaded")
}
pub fn translate(&self, scancode: u8, shift: bool, altgr: bool) -> char {
self.active_keymap().get_char(scancode, shift, altgr)
}
}
impl redox_scheme::SchemeBlockMut for KeymapScheme {
fn open(&mut self, path: &str, _flags: usize, _uid: u32, _gid: u32) -> Result<Option<usize>> {
let cleaned = path.trim_matches('/');
let kind = if cleaned.is_empty() {
HandleKind::Root
} else if cleaned == "active" {
HandleKind::Active
} else if cleaned == "list" {
HandleKind::List
} else if let Some(name) = cleaned.strip_prefix("keymap/") {
let name = name.trim_end_matches('/').to_string();
if !self.keymaps.contains_key(&name) {
return Err(Error::new(ENOENT));
}
HandleKind::Keymap { name }
} else if self.keymaps.contains_key(cleaned) {
let name = cleaned.to_string();
if let Some(km) = self.keymaps.get(&name) {
let _ = km;
}
HandleKind::Keymap { name }
} else if cleaned.starts_with("set/") {
let requested = &cleaned[4..];
if !self.keymaps.contains_key(requested) {
return Err(Error::new(ENOENT));
}
self.active_keymap = requested.to_string();
HandleKind::Active
} else {
return Err(Error::new(ENOENT));
};
let id = self.next_id;
self.next_id += 1;
self.handles.insert(id, Handle { kind, offset: 0 });
Ok(Some(id))
}
fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
let handle = self.handles.get_mut(&id).ok_or(Error::new(EBADF))?;
let content: Vec<u8> = match &handle.kind {
HandleKind::Root => {
let mut listing = String::new();
listing.push_str("active\nlist\n");
for name in self.keymaps.keys() {
listing.push_str(&format!("keymap/{}\n", name));
}
listing.into_bytes()
}
HandleKind::Active => self.active_keymap.clone().into_bytes(),
HandleKind::List => {
let mut listing = String::new();
for (i, name) in self.keymaps.keys().enumerate() {
if i > 0 {
listing.push('\n');
}
listing.push_str(name);
}
listing.push('\n');
listing.into_bytes()
}
HandleKind::Keymap { name } => {
let km = self.keymaps.get(name).ok_or(Error::new(ENOENT))?;
format!(
"name={}\nentries={}\ncompose={}\ndead_keys={}\n",
km.name,
km.entries.len(),
km.compose.len(),
km.dead_keys.len()
)
.into_bytes()
}
};
if handle.offset >= content.len() {
return Ok(Some(0));
}
let remaining = &content[handle.offset..];
let to_copy = remaining.len().min(buf.len());
buf[..to_copy].copy_from_slice(&remaining[..to_copy]);
handle.offset += to_copy;
Ok(Some(to_copy))
}
fn write(&mut self, id: usize, buf: &[u8]) -> Result<Option<usize>> {
let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?;
match &handle.kind {
HandleKind::Active => {
let name = String::from_utf8_lossy(buf);
let name = name.trim();
if self.keymaps.contains_key(name) {
self.active_keymap = name.to_string();
Ok(Some(buf.len()))
} else {
Err(Error::new(ENOENT))
}
}
_ => Err(Error::new(EINVAL)),
}
}
fn seek(&mut self, id: usize, pos: isize, whence: usize) -> Result<Option<isize>> {
let handle = self.handles.get_mut(&id).ok_or(Error::new(EBADF))?;
let new_offset = match whence {
SEEK_SET => pos as isize,
SEEK_CUR => handle.offset as isize + pos,
SEEK_END => pos,
_ => return Err(Error::new(EINVAL)),
};
if new_offset < 0 {
return Err(Error::new(EINVAL));
}
handle.offset = new_offset as usize;
Ok(Some(new_offset))
}
fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<Option<usize>> {
let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?;
match &handle.kind {
HandleKind::Root => {
stat.st_mode = MODE_DIR | 0o555;
}
_ => {
stat.st_mode = MODE_FILE | 0o644;
}
}
Ok(Some(0))
}
fn close(&mut self, id: usize) -> Result<Option<usize>> {
self.handles.remove(&id);
Ok(Some(0))
}
fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?;
let path = match &handle.kind {
HandleKind::Root => "keymap:".to_string(),
HandleKind::Active => "keymap:active".to_string(),
HandleKind::List => "keymap:list".to_string(),
HandleKind::Keymap { name } => format!("keymap:keymap/{}", name),
};
let bytes = path.as_bytes();
let to_copy = bytes.len().min(buf.len());
buf[..to_copy].copy_from_slice(&bytes[..to_copy]);
Ok(Some(to_copy))
}
}