Track CAS providers

crates/geth-control/src/lib.rs

@@ -67,6 +67,9 @@ pub enum ControlRequest {
     CasCleanup {
         dry_run: bool,
     },
+    CasProviders {
+        hash: BlobHash,
+    },
     CasList,
     CasRootAdd {
         name: String,
@@ -324,6 +327,10 @@ pub enum ControlResponse {
     CasList {
         blobs: Vec<CasBlob>,
     },
+    CasProviders {
+        hash: BlobHash,
+        providers: Vec<CasProvider>,
+    },
     CasRootAdded {
         root: FileRoot,
     },
@@ -569,6 +576,13 @@ pub struct CasBlob {
     pub pinned: bool,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct CasProvider {
+    pub peer_node_id: String,
+    pub endpoint_id: String,
+    pub last_seen_ms: i64,
+}
+
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[serde(tag = "type", rename_all = "kebab-case")]
 pub enum PeerControlRequest {
@@ -881,6 +895,27 @@ mod tests {
             request
         );
 
+        let request = ControlRequest::CasProviders {
+            hash: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef".into(),
+        };
+        assert_eq!(
+            decode_request(&encode_request(&request).expect("encode")).expect("decode"),
+            request
+        );
+
+        let response = ControlResponse::CasProviders {
+            hash: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef".into(),
+            providers: vec![CasProvider {
+                peer_node_id: "node:peer".to_owned(),
+                endpoint_id: "endpoint:peer".to_owned(),
+                last_seen_ms: 42,
+            }],
+        };
+        assert_eq!(
+            decode_response(&encode_response(&response).expect("encode")).expect("decode"),
+            response
+        );
+
         let request = ControlRequest::SshRevocationExport {
             out: PathBuf::from("revocations.krl-spec"),
             format: "openssh-krl-spec".to_owned(),