From f175dd11341e65fbd91366e9bdc72830d24b2c7f Mon Sep 17 00:00:00 2001
From: Bruce Leidl <bruce@subgraph.com>
Date: Mon, 19 Sep 2022 09:52:59 -0400
Subject: [PATCH] Add 'use-fuse' config option to export /dev/fuse to realm.

---
 libcitadel/src/realm/config.rs   | 11 +++++++++++
 libcitadel/src/realm/launcher.rs |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/libcitadel/src/realm/config.rs b/libcitadel/src/realm/config.rs
index 441ef94..d069f9e 100644
--- a/libcitadel/src/realm/config.rs
+++ b/libcitadel/src/realm/config.rs
@@ -74,6 +74,9 @@ pub struct RealmConfig {
     #[serde(rename="use-kvm")]
     pub use_kvm: Option<bool>,
 
+    #[serde(rename="use-fuse")]
+    pub use_fuse: Option<bool>,
+
     #[serde(rename="use-gpu")]
     pub use_gpu: Option<bool>,
 
@@ -197,6 +200,7 @@ impl RealmConfig {
             use_wayland: Some(true),
             wayland_socket: Some("wayland-0".to_string()),
             use_kvm: Some(false),
+            use_fuse: Some(false),
             use_gpu: Some(false),
             use_gpu_card0: Some(false),
             use_network: Some(true),
@@ -228,6 +232,7 @@ impl RealmConfig {
             use_wayland: None,
             wayland_socket: None,
             use_kvm: None,
+            use_fuse: None,
             use_gpu: None,
             use_gpu_card0: None,
             use_network: None,
@@ -256,6 +261,12 @@ impl RealmConfig {
         self.bool_value(|c| c.use_kvm)
     }
 
+    /// If `true` device /dev/fuse will be added to realm
+    ///
+    pub fn fuse(&self) -> bool {
+        self.bool_value(|c| c.use_fuse)
+    }
+
     /// If `true` render node device /dev/dri/renderD128 will be added to realm.
     ///
     /// This enables hardware graphics acceleration in realm.
diff --git a/libcitadel/src/realm/launcher.rs b/libcitadel/src/realm/launcher.rs
index 55e336e..ea4383c 100644
--- a/libcitadel/src/realm/launcher.rs
+++ b/libcitadel/src/realm/launcher.rs
@@ -60,6 +60,10 @@ impl <'a> RealmLauncher <'a> {
         if config.kvm() {
             self.add_device("/dev/kvm");
         }
+        if config.fuse() {
+            self.add_device("/dev/fuse");
+        }
+
         if config.gpu() {
             self.add_device("/dev/dri/renderD128");
             if config.gpu_card0() {