cln_plugin: custommessages in get_manifest

plugins/src/lib.rs

@@ -47,6 +47,7 @@ where
     rpcmethods: HashMap<String, RpcMethod<S>>,
     subscriptions: HashMap<String, Subscription<S>>,
     notifications: Vec<NotificationTopic>,
+    custommessages : Vec<u16>,
     dynamic: bool,
     // Do we want the plugin framework to automatically register a logging handler?
     logging: bool,
@@ -122,6 +123,7 @@ where
             rpcmethods: HashMap::new(),
             notifications: vec![],
             dynamic: false,
+            custommessages : vec![],
             logging: true,
         }
     }
@@ -228,6 +230,13 @@ where
         self
     }
 
+    /// Tells lightningd explicitly to allow custommmessages of the provided
+    /// type
+    pub fn custommessages(mut self, custommessages : Vec<u16>) -> Self {
+        self.custommessages = custommessages;
+        self
+    }
+
     /// Communicate with `lightningd` to tell it about our options,
     /// RPC methods and subscribe to hooks, and then process the
     /// initialization, configuring the plugin.
@@ -354,6 +363,7 @@ where
             notifications: self.notifications.clone(),
             dynamic: self.dynamic,
             nonnumericids: true,
+            custommessages : self.custommessages.clone()
         }
     }
 

plugins/src/messages.rs

@@ -178,6 +178,8 @@ pub(crate) struct GetManifestResponse {
     pub(crate) hooks: Vec<String>,
     pub(crate) dynamic: bool,
     pub(crate) nonnumericids: bool,
+    #[serde(skip_serializing_if = "Vec::is_empty")]
+    pub(crate) custommessages : Vec<u16>
 }
 
 #[derive(Serialize, Default, Debug)]