Copy DNSTAP changes from daemon to workers after fast_reload (#1375)

- On fast_reload, the identity and version strings are always freed and
  reallocated as part of dt_apply_cfg(). Add fr_worker_pickup_dnstap_changes()
  to copy any changes from daemon to workers.

diff --git a/daemon/remote.c b/daemon/remote.c
index 862a43cfda354bafe0dc8cebb393aadb1d24b83a..3ccc5affcb0a60937f2cb741ec219c298c6956b5 100644 (file)
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -7616,6 +7616,31 @@ fr_worker_pickup_outside_network(struct worker* worker)
        }
 }
 
+/** Fast reload, the worker picks up changes to DNSTAP configuration. */
+static void
+fr_worker_pickup_dnstap_changes(struct worker* worker)
+{
+       struct dt_env* w_dtenv = &worker->dtenv;
+       struct dt_env* d_dtenv = worker->daemon->dtenv;
+       w_dtenv->identity = d_dtenv->identity;
+       w_dtenv->len_identity = d_dtenv->len_identity;
+       w_dtenv->version = d_dtenv->version;
+       w_dtenv->len_version = d_dtenv->len_version;
+       w_dtenv->log_resolver_query_messages =
+               d_dtenv->log_resolver_query_messages;
+       w_dtenv->log_resolver_response_messages =
+               d_dtenv->log_resolver_response_messages;
+       w_dtenv->log_client_query_messages =
+               d_dtenv->log_client_query_messages;
+       w_dtenv->log_client_response_messages =
+               d_dtenv->log_client_response_messages;
+       w_dtenv->log_forwarder_query_messages =
+               d_dtenv->log_forwarder_query_messages;
+       w_dtenv->log_forwarder_response_messages =
+               d_dtenv->log_forwarder_response_messages;
+       w_dtenv->sample_rate = d_dtenv->sample_rate;
+}
+
 void
 fast_reload_worker_pickup_changes(struct worker* worker)
 {
@@ -7644,6 +7669,9 @@ fast_reload_worker_pickup_changes(struct worker* worker)
        worker->env.cachedb_enabled = worker->daemon->env->cachedb_enabled;
 #endif
        fr_worker_pickup_outside_network(worker);
+#ifdef USE_DNSTAP
+       fr_worker_pickup_dnstap_changes(worker);
+#endif
 }
 
 /** fast reload thread, handle reload_stop notification, send reload stop