[mirror_ubuntu-zesty-kernel.git] / include / net / netfilter / nf_nat_l3proto.h

#ifndef _NF_NAT_L3PROTO_H
#define _NF_NAT_L3PROTO_H

struct nf_nat_l4proto;
struct nf_nat_l3proto {
	u8	l3proto;

	bool	(*in_range)(const struct nf_conntrack_tuple *t,
			    const struct nf_nat_range *range);

	u32 	(*secure_port)(const struct nf_conntrack_tuple *t, __be16);

	bool	(*manip_pkt)(struct sk_buff *skb,
			     unsigned int iphdroff,
			     const struct nf_nat_l4proto *l4proto,
			     const struct nf_conntrack_tuple *target,
			     enum nf_nat_manip_type maniptype);

	void	(*csum_update)(struct sk_buff *skb, unsigned int iphdroff,
			       __sum16 *check,
			       const struct nf_conntrack_tuple *t,
			       enum nf_nat_manip_type maniptype);

	void	(*csum_recalc)(struct sk_buff *skb, u8 proto,
			       void *data, __sum16 *check,
			       int datalen, int oldlen);

	void	(*decode_session)(struct sk_buff *skb,
				  const struct nf_conn *ct,
				  enum ip_conntrack_dir dir,
				  unsigned long statusbit,
				  struct flowi *fl);

	int	(*nlattr_to_range)(struct nlattr *tb[],
				   struct nf_nat_range *range);
};

int nf_nat_l3proto_register(const struct nf_nat_l3proto *);
void nf_nat_l3proto_unregister(const struct nf_nat_l3proto *);
const struct nf_nat_l3proto *__nf_nat_l3proto_find(u8 l3proto);

int nf_nat_icmp_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
				  enum ip_conntrack_info ctinfo,
				  unsigned int hooknum);

unsigned int nf_nat_ipv4_in(void *priv, struct sk_buff *skb,
			    const struct nf_hook_state *state,
			    unsigned int (*do_chain)(void *priv,
						     struct sk_buff *skb,
						     const struct nf_hook_state *state,
						     struct nf_conn *ct));

unsigned int nf_nat_ipv4_out(void *priv, struct sk_buff *skb,
			     const struct nf_hook_state *state,
			     unsigned int (*do_chain)(void *priv,
						      struct sk_buff *skb,
						      const struct nf_hook_state *state,
						      struct nf_conn *ct));

unsigned int nf_nat_ipv4_local_fn(void *priv,
				  struct sk_buff *skb,
				  const struct nf_hook_state *state,
				  unsigned int (*do_chain)(void *priv,
							   struct sk_buff *skb,
							   const struct nf_hook_state *state,
							   struct nf_conn *ct));

unsigned int nf_nat_ipv4_fn(void *priv, struct sk_buff *skb,
			    const struct nf_hook_state *state,
			    unsigned int (*do_chain)(void *priv,
						     struct sk_buff *skb,
						     const struct nf_hook_state *state,
						     struct nf_conn *ct));

int nf_nat_icmpv6_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
				    enum ip_conntrack_info ctinfo,
				    unsigned int hooknum, unsigned int hdrlen);

unsigned int nf_nat_ipv6_in(void *priv, struct sk_buff *skb,
			    const struct nf_hook_state *state,
			    unsigned int (*do_chain)(void *priv,
						     struct sk_buff *skb,
						     const struct nf_hook_state *state,
						     struct nf_conn *ct));

unsigned int nf_nat_ipv6_out(void *priv, struct sk_buff *skb,
			     const struct nf_hook_state *state,
			     unsigned int (*do_chain)(void *priv,
						      struct sk_buff *skb,
						      const struct nf_hook_state *state,
						      struct nf_conn *ct));

unsigned int nf_nat_ipv6_local_fn(void *priv,
				  struct sk_buff *skb,
				  const struct nf_hook_state *state,
				  unsigned int (*do_chain)(void *priv,
							   struct sk_buff *skb,
							   const struct nf_hook_state *state,
							   struct nf_conn *ct));

unsigned int nf_nat_ipv6_fn(void *priv, struct sk_buff *skb,
			    const struct nf_hook_state *state,
			    unsigned int (*do_chain)(void *priv,
						     struct sk_buff *skb,
						     const struct nf_hook_state *state,
						     struct nf_conn *ct));

#endif /* _NF_NAT_L3PROTO_H */
Commit	Line	Data
c7232c99 PM	1	#ifndef _NF_NAT_L3PROTO_H
	2	#define _NF_NAT_L3PROTO_H
	3
	4	struct nf_nat_l4proto;
	5	struct nf_nat_l3proto {
	6	u8 l3proto;
	7
	8	bool (in_range)(const struct nf_conntrack_tuple t,
	9	const struct nf_nat_range *range);
	10
	11	u32 (secure_port)(const struct nf_conntrack_tuple t, __be16);
	12
	13	bool (manip_pkt)(struct sk_buff skb,
	14	unsigned int iphdroff,
	15	const struct nf_nat_l4proto *l4proto,
	16	const struct nf_conntrack_tuple *target,
	17	enum nf_nat_manip_type maniptype);
	18
	19	void (csum_update)(struct sk_buff skb, unsigned int iphdroff,
	20	__sum16 *check,
	21	const struct nf_conntrack_tuple *t,
	22	enum nf_nat_manip_type maniptype);
	23
	24	void (csum_recalc)(struct sk_buff skb, u8 proto,
	25	void data, __sum16 check,
	26	int datalen, int oldlen);
	27
	28	void (decode_session)(struct sk_buff skb,
	29	const struct nf_conn *ct,
	30	enum ip_conntrack_dir dir,
	31	unsigned long statusbit,
	32	struct flowi *fl);
	33
	34	int (nlattr_to_range)(struct nlattr tb[],
	35	struct nf_nat_range *range);
	36	};
	37
4e77be46 JP	38	int nf_nat_l3proto_register(const struct nf_nat_l3proto *);
	39	void nf_nat_l3proto_unregister(const struct nf_nat_l3proto *);
	40	const struct nf_nat_l3proto *__nf_nat_l3proto_find(u8 l3proto);
	41
	42	int nf_nat_icmp_reply_translation(struct sk_buff skb, struct nf_conn ct,
	43	enum ip_conntrack_info ctinfo,
	44	unsigned int hooknum);
30766f4c	45
06198b34	46	unsigned int nf_nat_ipv4_in(void priv, struct sk_buff skb,
d7cf4081	47	const struct nf_hook_state *state,
06198b34	48	unsigned int (do_chain)(void priv,
30766f4c	49	struct sk_buff *skb,
d7cf4081	50	const struct nf_hook_state *state,
30766f4c PNA	51	struct nf_conn *ct));
30766f4c PNA	52
06198b34	53	unsigned int nf_nat_ipv4_out(void priv, struct sk_buff skb,
d7cf4081	54	const struct nf_hook_state *state,
06198b34	55	unsigned int (do_chain)(void priv,
30766f4c	56	struct sk_buff *skb,
d7cf4081	57	const struct nf_hook_state *state,
30766f4c PNA	58	struct nf_conn *ct));
30766f4c PNA	59
06198b34	60	unsigned int nf_nat_ipv4_local_fn(void *priv,
30766f4c	61	struct sk_buff *skb,
d7cf4081	62	const struct nf_hook_state *state,
06198b34	63	unsigned int (do_chain)(void priv,
30766f4c	64	struct sk_buff *skb,
d7cf4081	65	const struct nf_hook_state *state,
30766f4c PNA	66	struct nf_conn *ct));
30766f4c PNA	67
06198b34	68	unsigned int nf_nat_ipv4_fn(void priv, struct sk_buff skb,
d7cf4081	69	const struct nf_hook_state *state,
06198b34	70	unsigned int (do_chain)(void priv,
30766f4c	71	struct sk_buff *skb,
d7cf4081	72	const struct nf_hook_state *state,
30766f4c PNA	73	struct nf_conn *ct));
30766f4c PNA	74
4e77be46 JP	75	int nf_nat_icmpv6_reply_translation(struct sk_buff skb, struct nf_conn ct,
	76	enum ip_conntrack_info ctinfo,
	77	unsigned int hooknum, unsigned int hdrlen);
c7232c99	78
06198b34	79	unsigned int nf_nat_ipv6_in(void priv, struct sk_buff skb,
8fe22382	80	const struct nf_hook_state *state,
06198b34	81	unsigned int (do_chain)(void priv,
2a5538e9	82	struct sk_buff *skb,
8fe22382	83	const struct nf_hook_state *state,
2a5538e9 PNA	84	struct nf_conn *ct));
2a5538e9 PNA	85
06198b34	86	unsigned int nf_nat_ipv6_out(void priv, struct sk_buff skb,
8fe22382	87	const struct nf_hook_state *state,
06198b34	88	unsigned int (do_chain)(void priv,
2a5538e9	89	struct sk_buff *skb,
8fe22382	90	const struct nf_hook_state *state,
2a5538e9 PNA	91	struct nf_conn *ct));
2a5538e9 PNA	92
06198b34	93	unsigned int nf_nat_ipv6_local_fn(void *priv,
2a5538e9	94	struct sk_buff *skb,
8fe22382	95	const struct nf_hook_state *state,
06198b34	96	unsigned int (do_chain)(void priv,
2a5538e9	97	struct sk_buff *skb,
8fe22382	98	const struct nf_hook_state *state,
2a5538e9 PNA	99	struct nf_conn *ct));
2a5538e9 PNA	100
06198b34	101	unsigned int nf_nat_ipv6_fn(void priv, struct sk_buff skb,
8fe22382	102	const struct nf_hook_state *state,
06198b34	103	unsigned int (do_chain)(void priv,
2a5538e9	104	struct sk_buff *skb,
8fe22382	105	const struct nf_hook_state *state,
2a5538e9 PNA	106	struct nf_conn *ct));
2a5538e9 PNA	107
c7232c99	108	#endif /* _NF_NAT_L3PROTO_H */