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[NETFILTER]: Introduce infrastructure for address family specific operations

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Change the queue rerouter intrastructure to a generic usable
infrastructure for address family specific operations as a base for
some cleanups.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2006-04-06 14:18:09 -07:00
committed by David S. Miller
parent a0aed49bdb
commit bce8032ef3
5 changed files with 70 additions and 59 deletions
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23
include/linux/netfilter.h
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@ -283,16 +283,25 @@ extern void nf_invalidate_cache(int pf);
Returns true or false. */
extern int skb_make_writable(struct sk_buff **pskb, unsigned int writable_len);
struct nf_queue_rerouter {
void (*save)(const struct sk_buff *skb, struct nf_info *info);
int (*reroute)(struct sk_buff **skb, const struct nf_info *info);
int rer_size;
struct nf_afinfo {
unsigned short family;
void (*saveroute)(const struct sk_buff *skb,
struct nf_info *info);
int (*reroute)(struct sk_buff **skb,
const struct nf_info *info);
int route_key_size;
};
#define nf_info_reroute(x) ((void *)x + sizeof(struct nf_info))
extern struct nf_afinfo *nf_afinfo[];
static inline struct nf_afinfo *nf_get_afinfo(unsigned short family)
{
return rcu_dereference(nf_afinfo[family]);
}
extern int nf_register_queue_rerouter(int pf, struct nf_queue_rerouter *rer);
extern int nf_unregister_queue_rerouter(int pf);
extern int nf_register_afinfo(struct nf_afinfo *afinfo);
extern void nf_unregister_afinfo(struct nf_afinfo *afinfo);
#define nf_info_reroute(x) ((void *)x + sizeof(struct nf_info))
#include <net/flow.h>
extern void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);