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clients: use fine-grained capabilities for privileged protocols

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This commit is contained in:
Julian Orth 2024-04-23 22:06:29 +02:00
parent e543646944
commit ef53d72ff8
13 changed files with 78 additions and 55 deletions
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26
src/globals.rs
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@ -1,7 +1,7 @@
use {
crate::{
backend::Backend,
client::Client,
client::{Client, ClientCaps},
ifs::{
ext_foreign_toplevel_list_v1::ExtForeignToplevelListV1Global,
ext_idle_notifier_v1::ExtIdleNotifierV1Global,
@ -113,8 +113,8 @@ pub trait Global: GlobalBase {
fn singleton(&self) -> bool;
fn version(&self) -> u32;
fn break_loops(&self) {}
fn secure(&self) -> bool {
false
fn required_caps(&self) -> ClientCaps {
ClientCaps::none()
}
fn xwayland_only(&self) -> bool {
false
@ -215,7 +215,7 @@ impl Globals {
fn insert(&self, state: &State, global: Rc<dyn Global>) {
self.insert_no_broadcast_(&global);
self.broadcast(state, global.secure(), global.xwayland_only(), |r| {
self.broadcast(state, global.required_caps(), global.xwayland_only(), |r| {
r.send_global(&global)
});
}
@ -223,11 +223,13 @@ impl Globals {
pub fn get(
&self,
name: GlobalName,
allow_secure: bool,
client_caps: ClientCaps,
allow_xwayland_only: bool,
) -> Result<Rc<dyn Global>, GlobalsError> {
let global = self.take(name, false)?;
if (global.secure() && !allow_secure) || (global.xwayland_only() && !allow_xwayland_only) {
if client_caps.not_contains(global.required_caps())
|| (global.xwayland_only() && !allow_xwayland_only)
{
return Err(GlobalsError::GlobalDoesNotExist(name));
}
Ok(global)
@ -236,7 +238,7 @@ impl Globals {
pub fn remove<T: WaylandGlobal>(&self, state: &State, global: &T) -> Result<(), GlobalsError> {
let _global = self.take(global.name(), true)?;
global.remove(self);
self.broadcast(state, global.secure(), global.xwayland_only(), |r| {
self.broadcast(state, global.required_caps(), global.xwayland_only(), |r| {
r.send_global_remove(global.name())
});
Ok(())
@ -247,14 +249,16 @@ impl Globals {
}
pub fn notify_all(&self, registry: &Rc<WlRegistry>) {
let secure = registry.client.secure;
let caps = registry.client.caps;
let xwayland = registry.client.is_xwayland;
let globals = self.registry.lock();
macro_rules! emit {
($singleton:expr) => {
for global in globals.values() {
if global.singleton() == $singleton {
if (secure || !global.secure()) && (xwayland || !global.xwayland_only()) {
if caps.contains(global.required_caps())
&& (xwayland || !global.xwayland_only())
{
registry.send_global(global);
}
}
@ -268,11 +272,11 @@ impl Globals {
fn broadcast<F: Fn(&Rc<WlRegistry>)>(
&self,
state: &State,
secure: bool,
required_caps: ClientCaps,
xwayland_only: bool,
f: F,
) {
state.clients.broadcast(secure, xwayland_only, |c| {
state.clients.broadcast(required_caps, xwayland_only, |c| {
let registries = c.lock_registries();
for registry in registries.values() {
f(registry);