[PATCH net] netfilter: fix DNAT target for shifted portmap ranges

[Paolo Abeni]

The commit 2eb0f624b709 ("netfilter: add NAT support for shifted
portmap ranges") did not set the checkentry/destroy callbacks for
the newly added DNAT target. As a result, rulesets using only
such nat targets are not effective, as the relevant conntrack hooks
are not enabled.
The above affect also nft_compat rulesets.
Fix the issue adding the missing initializers.

Fixes: 2eb0f624b709 ("netfilter: add NAT support for shifted portmap ranges")
Signed-off-by: Paolo Abeni <pab...@redhat.com>
---
 net/netfilter/xt_nat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/xt_nat.c b/net/netfilter/xt_nat.c
index 8af9707f8789..ac91170fc8c8 100644
--- a/net/netfilter/xt_nat.c
+++ b/net/netfilter/xt_nat.c
@@ -216,6 +216,8 @@ static struct xt_target xt_nat_target_reg[] __read_mostly = 
{
        {
                .name           = "DNAT",
                .revision       = 2,
+               .checkentry     = xt_nat_checkentry,
+               .destroy        = xt_nat_destroy,
                .target         = xt_dnat_target_v2,
                .targetsize     = sizeof(struct nf_nat_range2),
                .table          = "nat",
-- 
2.17.2