netfilter: xt_nat: fix DNAT target for shifted portmap ranges

[ Upstream commit cb20f2d2c0507d60d94ef896991e95708f051dd1 ]

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 <pabeni@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/netfilter/xt_nat.c b/net/netfilter/xt_nat.c
index 8af9707..ac91170 100644 (file)
--- 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",