The -exist flag was supported with the create, add and delete commands.
In order to gracefully handle the destroy command with nonexistent sets,
the -exist flag is added to destroy too.
Signed-off-by: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxx>
---
net/netfilter/ipset/ip_set_core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 7cff6e5e7445..8d459725311e 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1240,10 +1240,12 @@ static int ip_set_destroy(struct net *net, struct sock *ctnl,
/* Modified by ip_set_destroy() only, which is serialized */
inst->is_destroyed = false;
} else {
+ u32 flags = flag_exist(nlh);
s = find_set_and_id(inst, nla_data(attr[IPSET_ATTR_SETNAME]),
&i);
if (!s) {
- ret = -ENOENT;
+ if (!(flags & IPSET_FLAG_EXIST))
+ ret = -ENOENT;
goto out;
} else if (s->ref || s->ref_netlink) {
ret = -IPSET_ERR_BUSY;
--
2.20.1
