netfilter: ip6t_NPT: restrict to mangle table

As the translation is stateless, using it in nat table
doesn't work (only initial packet is translated).
filter table OUTPUT works but won't re-route the packet after translation.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c
index 83acc1405a18..33608c610276 100644
--- a/net/ipv6/netfilter/ip6t_NPT.c
+++ b/net/ipv6/netfilter/ip6t_NPT.c
@@ -114,6 +114,7 @@ ip6t_dnpt_tg(struct sk_buff *skb, const struct xt_action_param *par)
 static struct xt_target ip6t_npt_target_reg[] __read_mostly = {
         {
                 .name           = "SNPT",
+                .table          = "mangle",
                 .target         = ip6t_snpt_tg,
                 .targetsize     = sizeof(struct ip6t_npt_tginfo),
                 .checkentry     = ip6t_npt_checkentry,
@@ -124,6 +125,7 @@ static struct xt_target ip6t_npt_target_reg[] __read_mostly = {
         },
         {
                 .name           = "DNPT",
+                .table          = "mangle",
                 .target         = ip6t_dnpt_tg,
                 .targetsize     = sizeof(struct ip6t_npt_tginfo),
                 .checkentry     = ip6t_npt_checkentry,