netfilter_ipv6.h | Explore in Territory

/* IPv6-specific defines for netfilter. 
 * (C)1998 Rusty Russell -- This code is GPL.
 * (C)1999 David Jeffery
 *   this header was blatantly ripped from netfilter_ipv4.h
 *   it's amazing what adding a bunch of 6s can do =8^)
 */
#ifndef __LINUX_IP6_NETFILTER_H
#define __LINUX_IP6_NETFILTER_H

#include <uapi/linux/netfilter_ipv6.h>
#include <net/tcp.h>

/* Check for an extension */
static inline int
nf_ip6_ext_hdr(u8 nexthdr)
{ … }

/* Extra routing may needed on local out, as the QUEUE target never returns
 * control to the table.
 */
struct ip6_rt_info { … };

struct nf_queue_entry;
struct nf_bridge_frag_data;

/*
 * Hook functions for ipv6 to allow xt_* modules to be built-in even
 * if IPv6 is a module.
 */
struct nf_ipv6_ops { … };

#ifdef CONFIG_NETFILTER
#include <net/addrconf.h>

extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void)
{ … }

static inline int nf_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
				   const struct net_device *dev, int strict)
{ … }

int __nf_ip6_route(struct net *net, struct dst_entry **dst,
			       struct flowi *fl, bool strict);

static inline int nf_ip6_route(struct net *net, struct dst_entry **dst,
			       struct flowi *fl, bool strict)
{ … }

#include <net/netfilter/ipv6/nf_defrag_ipv6.h>

int br_ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
		    struct nf_bridge_frag_data *data,
		    int (*output)(struct net *, struct sock *sk,
				  const struct nf_bridge_frag_data *data,
				  struct sk_buff *));

static inline int nf_br_ip6_fragment(struct net *net, struct sock *sk,
				     struct sk_buff *skb,
				     struct nf_bridge_frag_data *data,
				     int (*output)(struct net *, struct sock *sk,
						   const struct nf_bridge_frag_data *data,
						   struct sk_buff *))
{ … }

int ip6_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb);

static inline int nf_ip6_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb)
{ … }

static inline u32 nf_ipv6_cookie_init_sequence(const struct ipv6hdr *iph,
					       const struct tcphdr *th,
					       u16 *mssp)
{ … }

static inline int nf_cookie_v6_check(const struct ipv6hdr *iph,
				     const struct tcphdr *th)
{ … }

__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
			unsigned int dataoff, u_int8_t protocol);

int nf_ip6_check_hbh_len(struct sk_buff *skb, u32 *plen);

int ipv6_netfilter_init(void);
void ipv6_netfilter_fini(void);

#else /* CONFIG_NETFILTER */
static inline int ipv6_netfilter_init(void) { return 0; }
static inline void ipv6_netfilter_fini(void) { return; }
static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) { return NULL; }
#endif /* CONFIG_NETFILTER */

#endif /*__LINUX_IP6_NETFILTER_H*/
linux/include/linux/netfilter_ipv6.h
