Reset IPFIX streams after configuration change

Reset IPFIX streams if reconfiguring IP addresses or collector port

Change-Id: Idc914f90462572342d4ed02b538bb2d30b317931
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>

diff --git a/vnet/vnet/flow/flow_report.c b/vnet/vnet/flow/flow_report.c
index b78df60..8cfbd59 100644 (file)
--- a/vnet/vnet/flow/flow_report.c
+++ b/vnet/vnet/flow/flow_report.c
@@ -211,6 +211,17 @@ int vnet_flow_report_add_del (flow_report_main_t *frm,
   return 0;
 }
 
+void vnet_flow_reports_reset (flow_report_main_t * frm)
+{
+  flow_report_t *fr;
+  vec_foreach (fr, frm->reports)
+    {
+         fr->sequence_number = 0;
+      fr->update_rewrite = 1;
+      fr->last_template_sent = 0;
+    }
+}
+
 static clib_error_t *
 set_ipfix_command_fn (vlib_main_t * vm,
                 unformat_input_t * input,
@@ -263,6 +274,12 @@ set_ipfix_command_fn (vlib_main_t * vm,
   if (path_mtu < 68)
        return clib_error_return (0, "too small path-mtu value, minimum is 68");
 
+  /* Reset report streams if we are reconfiguring IP addresses */
+  if (frm->ipfix_collector.as_u32 != collector.as_u32 ||
+      frm->src_address.as_u32 != src.as_u32 ||
+      frm->collector_port != collector_port)
+    vnet_flow_reports_reset(frm);
+
   frm->ipfix_collector.as_u32 = collector.as_u32;
   frm->collector_port = collector_port;
   frm->src_address.as_u32 = src.as_u32;