Add security context protocol

Currently, excludes some protocols if they have any security context
associated.

src/wayland/handlers/mod.rs

@@ -16,6 +16,7 @@ pub mod primary_selection;
 pub mod relative_pointer;
 pub mod screencopy;
 pub mod seat;
+pub mod security_context;
 pub mod shm;
 pub mod toplevel_info;
 pub mod toplevel_management;

src/wayland/handlers/security_context.rs

@@ -0,0 +1,33 @@
+use crate::state::{ClientState, State};
+use smithay::{
+    delegate_security_context,
+    wayland::security_context::{
+        SecurityContext, SecurityContextHandler, SecurityContextListenerSource,
+    },
+};
+use std::sync::Arc;
+use tracing::warn;
+
+impl SecurityContextHandler for State {
+    fn context_created(
+        &mut self,
+        source: SecurityContextListenerSource,
+        security_context: SecurityContext,
+    ) {
+        self.common
+            .event_loop_handle
+            .insert_source(source, move |client_stream, _, data| {
+                if let Err(err) = data.display.handle().insert_client(
+                    client_stream,
+                    Arc::new(ClientState {
+                        security_context: Some(security_context.clone()),
+                        ..data.state.new_client_state()
+                    }),
+                ) {
+                    warn!(?err, "Error adding wayland client");
+                };
+            })
+            .expect("Failed to init the wayland socket source.");
+    }
+}
+delegate_security_context!(State);