lib: do not subscribe to config changes on a state data tree (confd plugin)

Prevent the confd plugin from subscribing to configuration changes on a
data tree that contains only state data.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/lib/northbound_confd.c b/lib/northbound_confd.c
index 352f2ed074c5e94f214e81668b3a41cb549e2bac..886f17f81f68bf744b2c3f49d1f3ea50b41b0933 100644 (file)
--- a/lib/northbound_confd.c
+++ b/lib/northbound_confd.c
@@ -430,6 +430,9 @@ static int frr_confd_init_cdb(void)
                                continue;
                        }
 
+                       if (CHECK_FLAG(snode->flags, LYS_CONFIG_R))
+                               continue;
+
                        nb_node = snode->priv;
                        if (debug_northbound)
                                zlog_debug("%s: subscribing to '%s'", __func__,