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netfilter: nat: remove module dependency on ipv6 core

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nf_nat_ipv6 calls two ipv6 core functions, so add those to v6ops to avoid
the module dependency.

This is a prerequisite for merging ipv4 and ipv6 nat implementations.

Add wrappers to avoid the indirection if ipv6 is builtin.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2019-02-02 10:16:59 +01:00
committed by Pablo Neira Ayuso
parent a46c52d9f2
commit 960587285a
4 changed files with 45 additions and 3 deletions
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6
include/linux/netfilter_ipv6.h
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@@ -33,6 +33,12 @@ struct nf_ipv6_ops {
int (*route)(struct net *net, struct dst_entry **dst, struct flowi *fl,
bool strict);
int (*reroute)(struct sk_buff *skb, const struct nf_queue_entry *entry);
#if IS_MODULE(CONFIG_IPV6)
int (*route_me_harder)(struct net *net, struct sk_buff *skb);
int (*dev_get_saddr)(struct net *net, const struct net_device *dev,
const struct in6_addr *daddr, unsigned int srcprefs,
struct in6_addr *saddr);
#endif
};
#ifdef CONFIG_NETFILTER