* [PATCH libnftnl] set_elem: don't add NFTA_SET_ELEM_LIST_ELEMENTS attribute if set is empty
@ 2016-10-17 15:53 Pablo Neira Ayuso
0 siblings, 0 replies; only message in thread
From: Pablo Neira Ayuso @ 2016-10-17 15:53 UTC (permalink / raw)
To: netfilter-devel
If the set is empty, don't send an empty NFTA_SET_ELEM_LIST_ELEMENTS
netlink attributes with no elements.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
src/set_elem.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/set_elem.c b/src/set_elem.c
index 46fb7c6e424b..4d2b4f6074b7 100644
--- a/src/set_elem.c
+++ b/src/set_elem.c
@@ -304,6 +304,9 @@ void nftnl_set_elems_nlmsg_build_payload(struct nlmsghdr *nlh, struct nftnl_set
nftnl_set_elem_nlmsg_build_def(nlh, s);
+ if (list_empty(&s->element_list))
+ return;
+
nest1 = mnl_attr_nest_start(nlh, NFTA_SET_ELEM_LIST_ELEMENTS);
list_for_each_entry(elem, &s->element_list, head)
nftnl_set_elem_build(nlh, elem, ++i);
--
2.1.4
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