fix route_bgp/route_ping: old paths queue leak, etcp_send fail leak, nat_check_arg leak on cancel

src/route_bgp.c

@@ -760,6 +760,7 @@ int route_bgp_process_nodeinfo(struct ROUTE_BGP* bgp, struct ETCP_CONN* from, co
     if (need_alloc) {
         if (nodeinfo1) {
             queue_remove_data(bgp->nodes, &nodeinfo1->ll);
+            queue_free(paths);
             queue_entry_free(&nodeinfo1->ll);
         }
         nodeinfo1 = (struct NODEINFO_Q*)queue_entry_new(new_data_size);
@@ -904,6 +905,8 @@ void route_bgp_send_nodeinfo(struct NODEINFO_Q* node, struct ETCP_CONN* conn) {
     int ret = etcp_send(conn, e);
     if (ret != 0) {
         DEBUG_ERROR(DEBUG_CATEGORY_BGP, "etcp_send NODEINFO failed: %d", ret);
+        u_free(p);
+        queue_entry_free(e);
     }
 }
 

src/route_ping.c

@@ -131,6 +131,7 @@ void route_ping_cancel_for_conn(struct ROUTE_BGP* bgp, struct ETCP_CONN* conn) {
             }
             p->cancelled = 1;
             na->link = NULL;
+            u_free(na);
             u_free(p);
             cancelled++;
             DEBUG_INFO(DEBUG_CATEGORY_BGP, "cancel_for_conn: cancelled req_id=%016llx",