brl/citadel-tools
1
0
Fork 2
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

New improved realms daemon implementation

Browse Source
This commit is contained in:
Bruce Leidl 2024-11-13 11:54:40 -05:00
parent 24f786cf75
commit 11b3e8a016
16 changed files with 1446 additions and 313 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

677
Cargo.lock generated
View File

File diff suppressed because it is too large Load Diff

2
data/com.subgraph.realms.Manager.conf
View File

@ -7,10 +7,12 @@
<busconfig>
<policy user="root">
<allow own="com.subgraph.realms"/>
<allow own="com.subgraph.Realms2"/>
</policy>
<policy context="default">
<allow send_destination="com.subgraph.realms"/>
<allow send_destination="com.subgraph.Realms2"/>
<allow send_destination="com.subgraph.realms"
send_interface="org.freedesktop.DBus.Properties"/>
<allow send_destination="com.subgraph.realms"

4
libcitadel/src/realm/events.rs
View File

@ -12,7 +12,9 @@ use dbus::{Connection, BusType, ConnectionItem, Message, Path};
use inotify::{Inotify, WatchMask, WatchDescriptor, Event};
pub enum RealmEvent {
Starting(Realm),
Started(Realm),
Stopping(Realm),
Stopped(Realm),
New(Realm),
Removed(Realm),
@ -22,7 +24,9 @@ pub enum RealmEvent {
impl Display for RealmEvent {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
RealmEvent::Starting(ref realm) => write!(f, "RealmStarting({})", realm.name()),
RealmEvent::Started(ref realm) => write!(f, "RealmStarted({})", realm.name()),
RealmEvent::Stopping(ref realm) => write!(f, "RealmStopping({})", realm.name()),
RealmEvent::Stopped(ref realm) => write!(f, "RealmStopped({})", realm.name()),
RealmEvent::New(ref realm) => write!(f, "RealmNew({})", realm.name()),
RealmEvent::Removed(ref realm) => write!(f, "RealmRemoved({})", realm.name()),

15
libcitadel/src/realm/manager.rs
View File

@ -194,7 +194,13 @@ impl RealmManager {
return Ok(());
}
info!("Starting realm {}", realm.name());
self._start_realm(realm, &mut HashSet::new())?;
self.inner().events.send_event(RealmEvent::Starting(realm.clone()));
if let Err(err) = self._start_realm(realm, &mut HashSet::new()) {
self.inner().events.send_event(RealmEvent::Stopped(realm.clone()));
return Err(err);
}
self.inner().events.send_event(RealmEvent::Started(realm.clone()));
if !Realms::is_some_realm_current() {
self.inner_mut().realms.set_realm_current(realm)
@ -292,6 +298,7 @@ impl RealmManager {
}
info!("Stopping realm {}", realm.name());
self.inner().events.send_event(RealmEvent::Stopping(realm.clone()));
if realm.config().flatpak() {
if let Err(err) = self.stop_gnome_software_sandbox(realm) {
@ -300,8 +307,12 @@ impl RealmManager {
}
realm.set_active(false);
self.systemd.stop_realm(realm)?;
if let Err(err) = self.systemd.stop_realm(realm) {
self.inner().events.send_event(RealmEvent::Stopped(realm.clone()));
return Err(err);
}
realm.cleanup_rootfs();
self.inner().events.send_event(RealmEvent::Stopped(realm.clone()));
if realm.is_current() {
self.choose_some_current_realm();

14
libcitadel/src/realm/realm.rs
View File

@ -169,6 +169,20 @@ impl Realm {
self.inner.write().unwrap()
}
pub fn start(&self) -> Result<()> {
warn!("Realm({})::start()", self.name());
self.manager().start_realm(self)
}
pub fn stop(&self) -> Result<()> {
self.manager().stop_realm(self)
}
pub fn set_current(&self) -> Result<()> {
self.manager().set_current_realm(self)
}
pub fn is_active(&self) -> bool {
self.inner_mut().is_active()
}

4
realm-config-ui/Cargo.toml
View File

@ -9,7 +9,7 @@ homepage = "https://subgraph.com"
[dependencies]
libcitadel = { path = "../libcitadel" }
rand = "0.8"
zvariant = "2.7.0"
zvariant = "4.2.0"
serde = { version = "1.0", features = ["derive"] }
zbus = "=2.0.0-beta.5"
zbus = "4.4.0"
gtk = { version = "0.14.0", features = ["v3_24"] }

14
realm-config-ui/src/realmsd.rs
View File

@ -1,10 +1,10 @@
use std::collections::HashMap;
use std::rc::Rc;
use zbus::dbus_proxy;
use zvariant::derive::Type;
use zvariant::Type;
use serde::{Serialize,Deserialize};
use zbus::proxy;
use zbus::blocking::Connection;
use crate::error::{Error, Result};
#[derive(Deserialize,Serialize,Type)]
@ -85,10 +85,12 @@ impl RealmConfig {
}
}
#[dbus_proxy(
#[proxy(
default_service = "com.subgraph.realms",
interface = "com.subgraph.realms.Manager",
default_path = "/com/subgraph/realms"
default_path = "/com/subgraph/realms",
gen_blocking = true,
gen_async = false,
)]
pub trait RealmsManager {
fn get_current(&self) -> zbus::Result<String>;
@ -102,7 +104,7 @@ pub trait RealmsManager {
impl RealmsManagerProxy<'_> {
pub fn connect() -> Result<Self> {
let connection = zbus::Connection::new_system()?;
let connection = Connection::system()?;
let proxy = RealmsManagerProxy::new(&connection)
.map_err(|_| Error::ManagerConnect)?;

7
realmsd/Cargo.toml
View File

@ -6,8 +6,11 @@ edition = "2018"
[dependencies]
libcitadel = { path = "../libcitadel" }
zbus = "=2.0.0-beta.5"
zvariant = "2.7.0"
async-io = "2.3.2"
blocking = "1.6.1"
event-listener = "5.3.1"
zbus = "4.4.0"
zvariant = "4.2.0"
serde = { version = "1.0", features = ["derive"] }
serde_repr = "0.1.8"

38
realmsd/src/events.rs
View File

@ -1,15 +1,16 @@
use zbus::{Connection, ObjectServer};
use async_io::block_on;
use zbus::blocking::Connection;
use zbus::SignalContext;
use crate::realms_manager::{RealmsManagerServer, REALMS_SERVER_OBJECT_PATH, realm_status};
use libcitadel::{RealmEvent, Realm};
pub struct EventHandler {
connection: Connection,
realms_server: RealmsManagerServer,
}
impl EventHandler {
pub fn new(connection: Connection, realms_server: RealmsManagerServer) -> Self {
EventHandler { connection, realms_server }
pub fn new(connection: Connection) -> Self {
EventHandler { connection }
}
pub fn handle_event(&self, ev: &RealmEvent) {
@ -25,44 +26,49 @@ impl EventHandler {
RealmEvent::New(realm) => self.on_new(realm),
RealmEvent::Removed(realm) => self.on_removed(realm),
RealmEvent::Current(realm) => self.on_current(realm.as_ref()),
RealmEvent::Starting(_) => Ok(()),
RealmEvent::Stopping(_) => Ok(()),
}
}
fn with_server<F>(&self, func: F) -> zbus::Result<()>
fn with_signal_context<F>(&self, func: F) -> zbus::Result<()>
where
F: Fn(&RealmsManagerServer) -> zbus::Result<()>,
F: Fn(&SignalContext) -> zbus::Result<()>,
{
let mut object_server = ObjectServer::new(&self.connection);
object_server.at(REALMS_SERVER_OBJECT_PATH, self.realms_server.clone())?;
object_server.with(REALMS_SERVER_OBJECT_PATH, |iface: &RealmsManagerServer| func(iface))
let object_server = self.connection.object_server();
let iface = object_server.interface::<_, RealmsManagerServer>(REALMS_SERVER_OBJECT_PATH)?;
let ctx = iface.signal_context();
func(ctx)
}
fn on_started(&self, realm: &Realm) -> zbus::Result<()> {
let pid_ns = realm.pid_ns().unwrap_or(0);
let status = realm_status(realm);
self.with_server(|server| server.realm_started(realm.name(), pid_ns, status))
self.with_signal_context(|ctx| block_on(RealmsManagerServer::realm_started(ctx, realm.name(), pid_ns, status)))
}
fn on_stopped(&self, realm: &Realm) -> zbus::Result<()> {
let status = realm_status(realm);
self.with_server(|server| server.realm_stopped(realm.name(), status))
self.with_signal_context(|ctx| block_on(RealmsManagerServer::realm_stopped(ctx, realm.name(), status)))
}
fn on_new(&self, realm: &Realm) -> zbus::Result<()> {
let status = realm_status(realm);
let description = realm.notes().unwrap_or(String::new());
self.with_server(|server| server.realm_new(realm.name(), &description, status))
self.with_signal_context(|ctx| block_on(RealmsManagerServer::realm_new(ctx, realm.name(), &description, status)))
}
fn on_removed(&self, realm: &Realm) -> zbus::Result<()> {
self.with_server(|server| server.realm_removed(realm.name()))
self.with_signal_context(|ctx| block_on(RealmsManagerServer::realm_removed(ctx, realm.name())))
}
fn on_current(&self, realm: Option<&Realm>) -> zbus::Result<()> {
self.with_server(|server| {
self.with_signal_context(|ctx| {
match realm {
Some(realm) => server.realm_current(realm.name(), realm_status(realm)),
None => server.realm_current("", 0),
Some(realm) => block_on(RealmsManagerServer::realm_current(ctx, realm.name(), realm_status(realm))),
None => block_on(RealmsManagerServer::realm_current(ctx, "", 0)),
}
})
}

55
realmsd/src/main.rs
View File

@ -1,14 +1,18 @@
#[macro_use] extern crate libcitadel;
use zbus::{Connection, fdo};
use libcitadel::{Logger, LogLevel, Result};
use crate::realms_manager::RealmsManagerServer;
use std::env;
use std::sync::Arc;
use event_listener::{Event, Listener};
use zbus::blocking::Connection;
use zbus::fdo::ObjectManager;
use libcitadel::{Logger, LogLevel, Result, RealmManager};
use crate::next::{RealmsManagerServer2, REALMS2_SERVER_OBJECT_PATH};
use crate::realms_manager::{RealmsManagerServer, REALMS_SERVER_OBJECT_PATH};
mod realms_manager;
mod events;
mod next;
fn main() {
if let Err(e) = run_realm_manager() {
@ -16,24 +20,43 @@ fn main() {
}
}
fn create_system_connection() -> zbus::Result<Connection> {
let connection = zbus::Connection::new_system()?;
fdo::DBusProxy::new(&connection)?.request_name("com.subgraph.realms", fdo::RequestNameFlags::AllowReplacement.into())?;
Ok(connection)
fn register_realms_manager_server(connection: &Connection, realm_manager: &Arc<RealmManager>, quit_event: &Arc<Event>) -> Result<()> {
let server = RealmsManagerServer::load(&connection, realm_manager.clone(), quit_event.clone())
.map_err(context!("Loading realms server"))?;
connection.object_server().at(REALMS_SERVER_OBJECT_PATH, server).map_err(context!("registering realms manager object"))?;
Ok(())
}
fn register_realms2_manager_server(connection: &Connection, realm_manager: &Arc<RealmManager>, quit_event: &Arc<Event>) -> Result<()> {
let server2 = RealmsManagerServer2::load(&connection, realm_manager.clone(), quit_event.clone())
.map_err(context!("Loading realms2 server"))?;
connection.object_server().at(REALMS2_SERVER_OBJECT_PATH, server2).map_err(context!("registering realms manager object"))?;
connection.object_server().at(REALMS2_SERVER_OBJECT_PATH, ObjectManager).map_err(context!("registering ObjectManager"))?;
Ok(())
}
fn run_realm_manager() -> Result<()> {
Logger::set_log_level(LogLevel::Verbose);
let connection = create_system_connection()
let testing = env::args().skip(1).any(|s| s == "--testing");
let connection = Connection::system()
.map_err(context!("ZBus Connection error"))?;
let mut object_server = RealmsManagerServer::register(&connection)?;
loop {
if let Err(err) = object_server.try_handle_next() {
warn!("Error handling DBus message: {}", err);
}
}
let realm_manager = RealmManager::load()?;
let quit_event = Arc::new(Event::new());
if testing {
register_realms2_manager_server(&connection, &realm_manager, &quit_event)?;
connection.request_name("com.subgraph.Realms2")
.map_err(context!("acquiring realms manager name"))?;
} else {
register_realms_manager_server(&connection, &realm_manager, &quit_event)?;
register_realms2_manager_server(&connection, &realm_manager, &quit_event)?;
connection.request_name("com.subgraph.realms")
.map_err(context!("acquiring realms manager name"))?;
};
quit_event.listen().wait();
Ok(())
}

201
realmsd/src/next/config.rs Normal file
View File

@ -0,0 +1,201 @@
use std::collections::HashMap;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
use serde::{Deserialize, Serialize};
use zbus::fdo;
use zvariant::Type;
use libcitadel::{OverlayType, Realm, GLOBAL_CONFIG};
use libcitadel::terminal::Base16Scheme;
use crate::next::manager::failed;
const BOOL_CONFIG_VARS: &[&str] = &[
"use-gpu", "use-wayland", "use-x11", "use-sound",
"use-shared-dir", "use-network", "use-kvm", "use-ephemeral-home",
"use-media-dir", "use-fuse", "use-flatpak", "use-gpu-card0"
];
fn is_bool_config_variable(variable: &str) -> bool {
BOOL_CONFIG_VARS.iter().any(|&s| s == variable)
}
#[derive(Deserialize,Serialize,Type)]
pub struct RealmConfigVars {
items: HashMap<String,String>,
}
impl RealmConfigVars {
fn new() -> Self {
RealmConfigVars { items: HashMap::new() }
}
pub fn new_global() -> Self {
Self::new_from_config(&GLOBAL_CONFIG)
}
fn new_from_realm(realm: &Realm) -> Self {
let config = realm.config();
Self::new_from_config(&config)
}
fn new_from_config(config: &libcitadel::RealmConfig) -> Self {
let mut vars = RealmConfigVars::new();
vars.add_bool("use-gpu", config.gpu());
vars.add_bool("use-gpu-card0", config.gpu_card0());
vars.add_bool("use-wayland", config.wayland());
vars.add_bool("use-x11", config.x11());
vars.add_bool("use-sound", config.sound());
vars.add_bool("use-shared-dir", config.shared_dir());
vars.add_bool("use-network", config.network());
vars.add_bool("use-kvm", config.kvm());
vars.add_bool("use-ephemeral-home", config.ephemeral_home());
vars.add_bool("use-media-dir", config.media_dir());
vars.add_bool("use-fuse", config.fuse());
vars.add_bool("use-flatpak", config.flatpak());
let overlay = match config.overlay() {
OverlayType::None => "none",
OverlayType::TmpFS => "tmpfs",
OverlayType::Storage => "storage",
};
vars.add("overlay", overlay);
let scheme = match config.terminal_scheme() {
Some(name) => name.to_string(),
None => String::new(),
};
vars.add("terminal-scheme", scheme);
vars.add("realmfs", config.realmfs());
vars
}
fn add_bool(&mut self, name: &str, val: bool) {
let valstr = if val { "true".to_string() } else { "false".to_string() };
self.add(name, valstr);
}
fn add<S,T>(&mut self, k: S, v: T) where S: Into<String>, T: Into<String> {
self.items.insert(k.into(), v.into());
}
}
#[derive(Clone)]
pub struct RealmConfig {
realm: Realm,
changed: Arc<AtomicBool>,
}
impl RealmConfig {
pub fn new(realm: Realm) -> Self {
let changed = Arc::new(AtomicBool::new(false));
RealmConfig { realm, changed }
}
fn mark_changed(&self) {
self.changed.store(true, Ordering::Relaxed);
}
fn is_changed(&self) -> bool {
self.changed.load(Ordering::Relaxed)
}
pub fn config_vars(&self) -> RealmConfigVars {
RealmConfigVars::new_from_realm(&self.realm)
}
fn set_bool_var(&mut self, var: &str, value: &str) -> fdo::Result<()> {
let v = match value {
"true" => true,
"false" => false,
_ => return failed(format!("Invalid boolean value '{}' for realm config variable '{}'", value, var)),
};
let mut has_changed = true;
self.realm.with_mut_config(|c| {
match var {
"use-gpu" if c.gpu() != v => c.use_gpu = Some(v),
_ => has_changed = false,
}
});
if has_changed {
self.mark_changed();
}
Ok(())
}
fn set_overlay(&mut self, value: &str) -> fdo::Result<()> {
let val = match value {
"tmpfs" => Some("tmpfs".to_string()),
"storage" => Some("storage".to_string()),
"none" => None,
_ => return failed(format!("Invalid value '{}' for overlay config", value)),
};
if self.realm.config().overlay != val {
self.realm.with_mut_config(|c| {
c.overlay = Some(value.to_string());
});
self.mark_changed();
}
Ok(())
}
fn set_terminal_scheme(&mut self, value: &str) -> fdo::Result<()> {
if Some(value) == self.realm.config().terminal_scheme() {
return Ok(())
}
let scheme = match Base16Scheme::by_name(value) {
Some(scheme) => scheme,
None => return failed(format!("Invalid terminal color scheme '{}'", value)),
};
let manager = self.realm.manager();
if let Err(err) = scheme.apply_to_realm(&manager, &self.realm) {
return failed(format!("Error applying terminal color scheme: {}", err));
}
self.realm.with_mut_config(|c| {
c.terminal_scheme = Some(value.to_string());
});
self.mark_changed();
Ok(())
}
fn set_realmfs(&mut self, value: &str) -> fdo::Result<()> {
let manager = self.realm.manager();
if manager.realmfs_by_name(value).is_none() {
return failed(format!("Failed to set 'realmfs' config for realm-{}: RealmFS named '{}' does not exist", self.realm.name(), value));
}
if self.realm.config().realmfs() != value {
self.realm.with_mut_config(|c| {
c.realmfs = Some(value.to_string())
});
self.mark_changed();
}
Ok(())
}
pub fn save_config(&self) -> fdo::Result<()> {
if self.is_changed() {
self.realm.config()
.write()
.map_err(|err| fdo::Error::Failed(format!("Error writing config file for realm-{}: {}", self.realm.name(), err)))?;
self.changed.store(false, Ordering::Relaxed);
}
Ok(())
}
pub fn set_var(&mut self, var: &str, value: &str) -> fdo::Result<()> {
if is_bool_config_variable(var) {
self.set_bool_var(var, value)
} else if var == "overlay" {
self.set_overlay(value)
} else if var == "terminal-scheme" {
self.set_terminal_scheme(value)
} else if var == "realmfs" {
self.set_realmfs(value)
} else {
failed(format!("Unknown realm configuration variable '{}'", var))
}
}
}

103
realmsd/src/next/manager.rs Normal file
View File

@ -0,0 +1,103 @@
use std::sync::Arc;
use blocking::unblock;
use event_listener::{Event, EventListener};
use serde::Serialize;
use serde_repr::Serialize_repr;
use zbus::blocking::Connection;
use zbus::{fdo, interface};
use zvariant::Type;
use libcitadel::{PidLookupResult, RealmManager};
use crate::next::config::RealmConfigVars;
use crate::next::realm::RealmItemState;
use crate::next::realmfs::RealmFSState;
pub fn failed<T>(message: String) -> fdo::Result<T> {
Err(fdo::Error::Failed(message))
}
#[derive(Serialize_repr, Type, Debug, PartialEq)]
#[repr(u32)]
pub enum PidLookupResultCode {
Unknown = 1,
Realm = 2,
Citadel = 3,
}
#[derive(Debug, Type, Serialize)]
pub struct RealmFromCitadelPid {
code: PidLookupResultCode,
realm: String,
}
impl From<PidLookupResult> for RealmFromCitadelPid {
fn from(result: PidLookupResult) -> Self {
match result {
PidLookupResult::Unknown => RealmFromCitadelPid { code: PidLookupResultCode::Unknown, realm: String::new() },
PidLookupResult::Realm(realm) => RealmFromCitadelPid { code: PidLookupResultCode::Realm, realm: realm.name().to_string() },
PidLookupResult::Citadel => RealmFromCitadelPid { code: PidLookupResultCode::Citadel, realm: String::new() },
}
}
}
pub struct RealmsManagerServer2 {
realms: RealmItemState,
realmfs_state: RealmFSState,
manager: Arc<RealmManager>,
quit_event: Arc<Event>,
}
impl RealmsManagerServer2 {
fn new(connection: Connection, manager: Arc<RealmManager>, quit_event: Arc<Event>) -> Self {
let realms = RealmItemState::new(connection.clone());
let realmfs_state = RealmFSState::new(connection.clone());
RealmsManagerServer2 {
realms,
realmfs_state,
manager,
quit_event,
}
}
pub fn load(connection: &Connection, manager: Arc<RealmManager>, quit_event: Arc<Event>) -> zbus::Result<Self> {
let mut server = Self::new(connection.clone(), manager.clone(), quit_event);
server.realms.load_realms(&manager)?;
server.realmfs_state.load(&manager)?;
server.realms.populate_realmfs(&server.realmfs_state)?;
Ok(server)
}
}
#[interface(name = "com.subgraph.realms.Manager2")]
impl RealmsManagerServer2 {
async fn get_current(&self) -> u32 {
self.realms.get_current()
.map(|r| r.index())
.unwrap_or(0)
}
async fn realm_from_citadel_pid(&self, pid: u32) -> RealmFromCitadelPid {
let manager = self.manager.clone();
unblock(move || {
manager.realm_by_pid(pid).into()
}).await
}
async fn create_realm(&self, name: &str) -> fdo::Result<()> {
let manager = self.manager.clone();
let name = name.to_string();
unblock(move || {
let _ = manager.new_realm(&name).map_err(|err| fdo::Error::Failed(err.to_string()))?;
Ok(())
}).await
}
async fn get_global_config(&self) -> RealmConfigVars {
RealmConfigVars::new_global()
}
}

8
realmsd/src/next/mod.rs Normal file
View File

@ -0,0 +1,8 @@
mod manager;
mod config;
mod realm;
mod realmfs;
pub use manager::RealmsManagerServer2;
pub const REALMS2_SERVER_OBJECT_PATH: &str = "/com/subgraph/Realms2";

374
realmsd/src/next/realm.rs Normal file
View File

@ -0,0 +1,374 @@
use std::collections::HashMap;
use std::convert::TryInto;
use std::sync::{Arc, Mutex, MutexGuard};
use std::sync::atomic::{AtomicBool, AtomicI64, AtomicU32, Ordering};
use blocking::unblock;
use zbus::{interface, fdo};
use zbus::blocking::Connection;
use zbus::names::{BusName, InterfaceName};
use zvariant::{OwnedObjectPath, Value};
use libcitadel::{Realm, RealmEvent, RealmManager, Result};
use crate::next::config::{RealmConfig, RealmConfigVars};
use crate::next::realmfs::RealmFSState;
use crate::next::REALMS2_SERVER_OBJECT_PATH;
#[derive(Clone)]
pub struct RealmItem {
path: String,
index: u32,
realm: Realm,
config: RealmConfig,
in_run_transition: Arc<AtomicBool>,
realmfs_index: Arc<AtomicU32>,
last_timestamp: Arc<AtomicI64>,
}
#[derive(Copy,Clone)]
#[repr(u32)]
enum RealmRunStatus {
Stopped = 0,
Starting,
Running,
Current,
Stopping,
}
impl RealmRunStatus {
fn for_realm(realm: &Realm, in_transition: bool) -> Self {
if in_transition {
if realm.is_active() { Self::Stopping } else { Self::Starting }
} else if realm.is_active() {
if realm.is_current() { Self::Current } else {Self::Running }
} else {
Self::Stopped
}
}
}
impl RealmItem {
pub(crate) fn new_from_realm(index: u32, realm: Realm) -> RealmItem {
let path = format!("{}/Realm{}", REALMS2_SERVER_OBJECT_PATH, index);
let in_run_transition = Arc::new(AtomicBool::new(false));
let config = RealmConfig::new(realm.clone());
let realmfs_index = Arc::new(AtomicU32::new(0));
let last_timestamp = Arc::new(AtomicI64::new(realm.timestamp()));
RealmItem { path, index, realm, config, in_run_transition, realmfs_index, last_timestamp }
}
pub fn path(&self) -> &str {
&self.path
}
pub fn index(&self) -> u32 {
self.index
}
fn in_run_transition(&self) -> bool {
self.in_run_transition.load(Ordering::Relaxed)
}
fn get_run_status(&self) -> RealmRunStatus {
RealmRunStatus::for_realm(&self.realm, self.in_run_transition())
}
async fn do_start(&mut self) -> fdo::Result<()> {
if !self.realm.is_active() {
let realm = self.realm.clone();
let res = unblock(move || realm.start()).await;
if let Err(err) = res {
return Err(fdo::Error::Failed(format!("Failed to start realm: {}", err)));
}
}
Ok(())
}
async fn do_stop(&mut self) -> fdo::Result<()> {
if self.realm.is_active() {
let realm = self.realm.clone();
let res = unblock(move || realm.stop()).await;
if let Err(err) = res {
return Err(fdo::Error::Failed(format!("Failed to stop realm: {}", err)));
}
}
Ok(())
}
}
#[interface(
name = "com.subgraph.realms.Realm"
)]
impl RealmItem {
async fn start(
&mut self,
) -> fdo::Result<()> {
self.do_start().await?;
Ok(())
}
async fn stop(
&mut self,
) -> fdo::Result<()> {
self.do_stop().await?;
Ok(())
}
async fn restart(
&mut self,
) -> fdo::Result<()> {
self.do_stop().await?;
self.do_start().await?;
Ok(())
}
async fn set_current(&mut self) -> fdo::Result<()> {
let realm = self.realm.clone();
let res = unblock(move || realm.set_current()).await;
if let Err(err) = res {
return Err(fdo::Error::Failed(format!("Failed to set realm {} as current: {}", self.realm.name(), err)));
}
Ok(())
}
async fn get_config(&self) -> RealmConfigVars {
self.config.config_vars()
}
async fn set_config(&mut self, vars: Vec<(String, String)>) -> fdo::Result<()> {
for (var, val) in &vars {
self.config.set_var(var, val)?;
}
let config = self.config.clone();
unblock(move || config.save_config()).await
}
#[zbus(property, name = "RunStatus")]
fn run_status(&self) -> u32 {
self.get_run_status() as u32
}
#[zbus(property, name="IsSystemRealm")]
fn is_system_realm(&self) -> bool {
self.realm.is_system()
}
#[zbus(property, name = "Name")]
fn name(&self) -> &str {
self.realm.name()
}
#[zbus(property, name = "Description")]
fn description(&self) -> String {
self.realm.notes()
.unwrap_or(String::new())
}
#[zbus(property, name = "PidNS")]
fn pid_ns(&self) -> u64 {
self.realm.pid_ns().unwrap_or_default()
}
#[zbus(property, name = "RealmFS")]
fn realmfs(&self) -> u32 {
self.realmfs_index.load(Ordering::Relaxed)
}
#[zbus(property, name = "Timestamp")]
fn timestamp(&self) -> u64 {
self.realm.timestamp() as u64
}
}
#[derive(Clone)]
pub struct RealmItemState(Arc<Mutex<Inner>>);
struct Inner {
connection: Connection,
next_index: u32,
realms: HashMap<String, RealmItem>,
current_realm: Option<RealmItem>,
}
impl Inner {
fn new(connection: Connection) -> Self {
Inner {
connection,
next_index: 1,
realms:HashMap::new(),
current_realm: None,
}
}
fn load_realms(&mut self, manager: &RealmManager) -> zbus::Result<()> {
for realm in manager.realm_list() {
self.add_realm(realm)?;
}
Ok(())
}
pub fn populate_realmfs(&mut self, realmfs_state: &RealmFSState) -> zbus::Result<()> {
for item in self.realms.values_mut() {
if let Some(realmfs) = realmfs_state.realmfs_by_name(item.realm.config().realmfs()) {
item.realmfs_index.store(realmfs.index(), Ordering::Relaxed);
}
}
Ok(())
}
fn add_realm(&mut self, realm: Realm) -> zbus::Result<()> {
if self.realms.contains_key(realm.name()) {
warn!("Attempted to add duplicate realm '{}'", realm.name());
return Ok(())
}
let key = realm.name().to_string();
let item = RealmItem::new_from_realm(self.next_index, realm);
self.connection.object_server().at(item.path(), item.clone())?;
self.realms.insert(key, item);
self.next_index += 1;
Ok(())
}
fn remove_realm(&mut self, realm: &Realm) -> zbus::Result<()> {
if let Some(item) = self.realms.remove(realm.name()) {
self.connection.object_server().remove::<RealmItem, &str>(item.path())?;
} else {
warn!("Failed to find realm to remove with name '{}'", realm.name());
}
Ok(())
}
fn emit_property_changed(&self, object_path: OwnedObjectPath, propname: &str, value: Value<'_>) -> zbus::Result<()> {
let iface_name = InterfaceName::from_str_unchecked("com.subgraph.realms.Realm");
let changed = HashMap::from([(propname.to_string(), value)]);
let inval: &[&str] = &[];
self.connection.emit_signal(
None::<BusName<'_>>,
&object_path,
"org.freedesktop.Dbus.Properties",
"PropertiesChanged",
&(iface_name, changed, inval))?;
Ok(())
}
fn realm_status_changed(&self, realm: &Realm, transition: Option<bool>) -> zbus::Result<()> {
if let Some(realm) = self.realm_by_name(realm.name()) {
if let Some(transition) = transition {
realm.in_run_transition.store(transition, Ordering::Relaxed);
}
let object_path = realm.path().try_into().unwrap();
self.emit_property_changed(object_path, "RunStatus", Value::U32(realm.get_run_status() as u32))?;
let timestamp = realm.realm.timestamp();
if realm.last_timestamp.load(Ordering::Relaxed) != realm.realm.timestamp() {
realm.last_timestamp.store(timestamp, Ordering::Relaxed);
let object_path = realm.path().try_into().unwrap();
self.emit_property_changed(object_path, "Timestamp", Value::U64(timestamp as u64))?;
}
}
Ok(())
}
fn realm_by_name(&self, name: &str) -> Option<&RealmItem> {
let res = self.realms.get(name);
if res.is_none() {
warn!("Failed to find realm with name '{}'", name);
}
res
}
fn on_starting(&self, realm: &Realm) -> zbus::Result<()>{
self.realm_status_changed(realm, Some(true))?;
Ok(())
}
fn on_started(&self, realm: &Realm) -> zbus::Result<()>{
self.realm_status_changed(realm, Some(false))
}
fn on_stopping(&self, realm: &Realm) -> zbus::Result<()> {
self.realm_status_changed(realm, Some(true))
}
fn on_stopped(&self, realm: &Realm) -> zbus::Result<()> {
self.realm_status_changed(realm, Some(false))
}
fn on_new(&mut self, realm: &Realm) -> zbus::Result<()> {
self.add_realm(realm.clone())?;
Ok(())
}
fn on_removed(&mut self, realm: &Realm) -> zbus::Result<()> {
self.remove_realm(&realm)?;
Ok(())
}
fn on_current(&mut self, realm: Option<&Realm>) -> zbus::Result<()> {
if let Some(r) = self.current_realm.take() {
self.realm_status_changed(&r.realm, None)?;
}
if let Some(realm) = realm {
self.realm_status_changed(realm, None)?;
if let Some(item) = self.realm_by_name(realm.name()) {
self.current_realm = Some(item.clone());
}
}
Ok(())
}
}
impl RealmItemState {
pub fn new(connection: Connection) -> Self {
RealmItemState(Arc::new(Mutex::new(Inner::new(connection))))
}
pub fn load_realms(&self, manager: &RealmManager) -> zbus::Result<()> {
self.inner().load_realms(manager)?;
self.add_event_handler(manager)
.map_err(|err| zbus::Error::Failure(err.to_string()))?;
Ok(())
}
pub fn populate_realmfs(&self, realmfs_state: &RealmFSState) -> zbus::Result<()> {
self.inner().populate_realmfs(realmfs_state)
}
pub fn get_current(&self) -> Option<RealmItem> {
self.inner().current_realm.clone()
}
fn inner(&self) -> MutexGuard<Inner> {
self.0.lock().unwrap()
}
fn add_event_handler(&self, manager: &RealmManager) -> Result<()> {
let state = self.clone();
manager.add_event_handler(move |ev| {
if let Err(err) = state.handle_event(ev) {
warn!("Error handling {}: {}", ev, err);
}
});
manager.start_event_task()?;
Ok(())
}
fn handle_event(&self, ev: &RealmEvent) -> zbus::Result<()> {
match ev {
RealmEvent::Started(realm) => self.inner().on_started(realm)?,
RealmEvent::Stopped(realm) => self.inner().on_stopped(realm)?,
RealmEvent::New(realm) => self.inner().on_new(realm)?,
RealmEvent::Removed(realm) => self.inner().on_removed(realm)?,
RealmEvent::Current(realm) => self.inner().on_current(realm.as_ref())?,
RealmEvent::Starting(realm) => self.inner().on_starting(realm)?,
RealmEvent::Stopping(realm) => self.inner().on_stopping(realm)?,
};
Ok(())
}
}

120
realmsd/src/next/realmfs.rs Normal file
View File

@ -0,0 +1,120 @@
use std::collections::HashMap;
use std::convert::TryInto;
use zbus::blocking::Connection;
use zbus::{fdo, interface};
use zvariant::{ObjectPath, OwnedObjectPath};
use libcitadel::{RealmFS, RealmManager};
use crate::next::REALMS2_SERVER_OBJECT_PATH;
const BLOCK_SIZE: u64 = 4096;
#[derive(Clone)]
pub struct RealmFSItem {
object_path: OwnedObjectPath,
index: u32,
realmfs: RealmFS,
}
impl RealmFSItem {
pub(crate) fn new_from_realmfs(index: u32, realmfs: RealmFS) -> RealmFSItem {
let object_path = format!("{}/RealmFS{}", REALMS2_SERVER_OBJECT_PATH, index).try_into().unwrap();
RealmFSItem {
object_path,
index,
realmfs,
}
}
pub fn index(&self) -> u32 {
self.index
}
pub fn object_path(&self) -> ObjectPath {
self.object_path.as_ref()
}
}
#[interface(
name = "com.subgraph.realms.RealmFS"
)]
impl RealmFSItem {
#[zbus(property, name = "Name")]
fn name(&self) -> &str {
self.realmfs.name()
}
#[zbus(property, name = "Activated")]
fn activated(&self) -> bool {
self.realmfs.is_activated()
}
#[zbus(property, name = "InUse")]
fn in_use(&self) -> bool {
self.realmfs.is_activated()
}
#[zbus(property, name = "Mountpoint")]
fn mountpoint(&self) -> String {
self.realmfs.mountpoint().to_string()
}
#[zbus(property, name = "Path")]
fn path(&self) -> String {
format!("{}", self.realmfs.path().display())
}
#[zbus(property, name = "FreeSpace")]
fn free_space(&self) -> fdo::Result<u64> {
let blocks = self.realmfs.free_size_blocks()
.map_err(|err| fdo::Error::Failed(err.to_string()))?;
Ok(blocks as u64 * BLOCK_SIZE)
}
#[zbus(property, name = "AllocatedSpace")]
fn allocated_space(&self) -> fdo::Result<u64> {
let blocks = self.realmfs.allocated_size_blocks()
.map_err(|err| fdo::Error::Failed(err.to_string()))?;
Ok(blocks as u64 * BLOCK_SIZE)
}
}
pub struct RealmFSState {
connection: Connection,
next_index: u32,
items: HashMap<String, RealmFSItem>,
}
impl RealmFSState {
pub fn new(connection: Connection) -> Self {
RealmFSState {
connection,
next_index: 1,
items: HashMap::new(),
}
}
pub fn load(&mut self, manager: &RealmManager) -> zbus::Result<()> {
for realmfs in manager.realmfs_list() {
self.add_realmfs(realmfs)?;
}
Ok(())
}
fn add_realmfs(&mut self, realmfs: RealmFS) -> zbus::Result<()> {
if !self.items.contains_key(realmfs.name()) {
let name = realmfs.name().to_string();
let item = RealmFSItem::new_from_realmfs(self.next_index, realmfs);
self.connection.object_server().at(item.object_path(), item.clone())?;
self.items.insert(name, item);
self.next_index += 1;
} else {
warn!("Attempted to add duplicate realmfs '{}'", realmfs.name());
}
Ok(())
}
pub fn realmfs_by_name(&self, name: &str) -> Option<&RealmFSItem> {
let res = self.items.get(name);
if res.is_none() {
warn!("Failed to find RealmFS with name '{}'", name);
}
res
}
}

99
realmsd/src/realms_manager.rs
View File

@ -1,11 +1,14 @@
use libcitadel::{RealmManager, Realm, OverlayType, Result, PidLookupResult};
use std::sync::Arc;
use zbus::{dbus_interface, ObjectServer,Connection};
use zvariant::derive::Type;
use zbus::blocking::Connection;
use zvariant::Type;
use std::thread;
use std::collections::HashMap;
use blocking::unblock;
use event_listener::{Event, EventListener};
use serde::{Serialize, Deserialize};
use serde_repr::Serialize_repr;
use zbus::{interface, SignalContext};
use crate::events::EventHandler;
use libcitadel::terminal::Base16Scheme;
@ -39,6 +42,7 @@ impl From<PidLookupResult> for RealmFromCitadelPid {
#[derive(Clone)]
pub struct RealmsManagerServer {
manager: Arc<RealmManager>,
quit_event: Arc<Event>,
}
const BOOL_CONFIG_VARS: &[&str] = &[
@ -121,40 +125,40 @@ fn configure_realm(manager: &RealmManager, realm: &Realm, variable: &str, value:
impl RealmsManagerServer {
fn register_events(&self, connection: &Connection) -> Result<()> {
let events = EventHandler::new(connection.clone(), self.clone());
self.manager.add_event_handler(move |ev| events.handle_event(ev));
self.manager.start_event_task()
pub fn load(connection: &Connection, manager: Arc<RealmManager>, quit_event: Arc<Event>) -> Result<RealmsManagerServer> {
let server = RealmsManagerServer { manager, quit_event };
let events = EventHandler::new(connection.clone());
server.manager.add_event_handler(move |ev| events.handle_event(ev));
server.manager.start_event_task()?;
Ok(server)
}
pub fn register(connection: &Connection) -> Result<ObjectServer> {
let manager = RealmManager::load()?;
let iface = RealmsManagerServer { manager };
iface.register_events(connection)?;
let mut object_server = ObjectServer::new(connection);
object_server.at(REALMS_SERVER_OBJECT_PATH, iface).map_err(context!("ZBus error"))?;
Ok(object_server)
}
}
#[dbus_interface(name = "com.subgraph.realms.Manager")]
#[interface(name = "com.subgraph.realms.Manager")]
impl RealmsManagerServer {
fn set_current(&self, name: &str) {
if let Some(realm) = self.manager.realm_by_name(name) {
if let Err(err) = self.manager.set_current_realm(&realm) {
async fn set_current(&self, name: &str) {
let manager = self.manager.clone();
let name = name.to_string();
unblock(move || {
if let Some(realm) = manager.realm_by_name(&name) {
if let Err(err) = manager.set_current_realm(&realm) {
warn!("set_current_realm({}) failed: {}", name, err);
}
}
}).await
}
fn get_current(&self) -> String {
match self.manager.current_realm() {
async fn get_current(&self) -> String {
let manager = self.manager.clone();
unblock(move || {
match manager.current_realm() {
Some(realm) => realm.name().to_string(),
None => String::new(),
}
}).await
}
fn list(&self) -> Vec<RealmItem> {
@ -249,8 +253,12 @@ impl RealmsManagerServer {
});
}
fn realm_from_citadel_pid(&self, pid: u32) -> RealmFromCitadelPid {
self.manager.realm_by_pid(pid).into()
async fn realm_from_citadel_pid(&self, pid: u32) -> RealmFromCitadelPid {
let manager = self.manager.clone();
unblock(move || {
manager.realm_by_pid(pid).into()
}).await
}
fn realm_config(&self, name: &str) -> RealmConfig {
@ -261,7 +269,7 @@ impl RealmsManagerServer {
RealmConfig::new_from_realm(&realm)
}
fn realm_set_config(&self, name: &str, vars: Vec<(String,String)>) {
async fn realm_set_config(&self, name: &str, vars: Vec<(String,String)>) {
let realm = match self.manager.realm_by_name(name) {
Some(r) => r,
None => {
@ -270,8 +278,12 @@ impl RealmsManagerServer {
},
};
for var in &vars {
configure_realm(&self.manager, &realm, &var.0, &var.1);
for var in vars {
let manager = self.manager.clone();
let realm = realm.clone();
unblock( move || {
configure_realm(&manager, &realm, &var.0, &var.1);
}).await;
}
}
@ -279,13 +291,18 @@ impl RealmsManagerServer {
Realm::is_valid_name(name) && self.manager.realm_by_name(name).is_some()
}
fn create_realm(&self, name: &str) -> bool {
if let Err(err) = self.manager.new_realm(name) {
async fn create_realm(&self, name: &str) -> bool {
let manager = self.manager.clone();
let name = name.to_string();
unblock(move || {
if let Err(err) = manager.new_realm(&name) {
warn!("Error creating realm ({}): {}", name, err);
false
} else {
true
}
}).await
}
fn list_realm_f_s(&self) -> Vec<String> {
@ -299,23 +316,23 @@ impl RealmsManagerServer {
}
#[dbus_interface(signal)]
pub fn realm_started(&self, realm: &str, pid_ns: u64, status: u8) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn realm_started(ctx: &SignalContext<'_>, realm: &str, pid_ns: u64, status: u8) -> zbus::Result<()>;
#[dbus_interface(signal)]
pub fn realm_stopped(&self, realm: &str, status: u8) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn realm_stopped(ctx: &SignalContext<'_>, realm: &str, status: u8) -> zbus::Result<()>;
#[dbus_interface(signal)]
pub fn realm_new(&self, realm: &str, description: &str, status: u8) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn realm_new(ctx: &SignalContext<'_>, realm: &str, description: &str, status: u8) -> zbus::Result<()>;
#[dbus_interface(signal)]
pub fn realm_removed(&self, realm: &str) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn realm_removed(ctx: &SignalContext<'_>, realm: &str) -> zbus::Result<()>;
#[dbus_interface(signal)]
pub fn realm_current(&self, realm: &str, status: u8) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn realm_current(ctx: &SignalContext<'_>, realm: &str, status: u8) -> zbus::Result<()>;
#[dbus_interface(signal)]
pub fn service_started(&self) -> zbus::Result<()> { Ok(()) }
#[zbus(signal)]
pub async fn service_started(ctx: &SignalContext<'_>) -> zbus::Result<()>;
}