From 1678bc07467e6d977fc2f6bf830274ca92e0a6e5 Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Tue, 24 Nov 2020 03:42:23 +0100
Subject: [PATCH] Fix some failed asserts due to add_tail()

When config structures are copied due to template application,
we need to reset list node structure before calling add_tail().

Thanks to Mikael Magnusson for patches.
---
 conf/conf.c           | 1 +
 nest/proto.c          | 1 +
 proto/static/static.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/conf/conf.c b/conf/conf.c
index b21d5213..6f64b541 100644
--- a/conf/conf.c
+++ b/conf/conf.c
@@ -573,6 +573,7 @@ cfg_copy_list(list *dest, list *src, unsigned node_size)
   {
     dn = cfg_alloc(node_size);
     memcpy(dn, sn, node_size);
+    memset(dn, 0, sizeof(node));
     add_tail(dest, dn);
   }
 }
diff --git a/nest/proto.c b/nest/proto.c
index 41b3a6b9..748601c3 100644
--- a/nest/proto.c
+++ b/nest/proto.c
@@ -626,6 +626,7 @@ channel_copy_config(struct channel_config *src, struct proto_config *proto)
   struct channel_config *dst = cfg_alloc(src->channel->config_size);
 
   memcpy(dst, src, src->channel->config_size);
+  memset(&dst->n, 0, sizeof(node));
   add_tail(&proto->channels, &dst->n);
   CALL(src->channel->copy_config, dst, src);
 
diff --git a/proto/static/static.c b/proto/static/static.c
index 7b22d49b..941e916f 100644
--- a/proto/static/static.c
+++ b/proto/static/static.c
@@ -643,6 +643,7 @@ static_copy_config(struct proto_config *dest, struct proto_config *src)
     {
       dnh = cfg_alloc(sizeof(struct static_route));
       memcpy(dnh, snh, sizeof(struct static_route));
+      memset(&dnh->n, 0, sizeof(node));
 
       if (!drt)
 	add_tail(&d->routes, &(dnh->n));