nf_nat_helper.c File Reference

#include <linux/module.h>
#include <linux/gfp.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/tcp.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_ecache.h>
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_nat_l3proto.h>
#include <net/netfilter/nf_nat_l4proto.h>
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_helper.h>

Go to the source code of this file.

Macros
#define	DUMP_OFFSET(x)

Functions
s16	nf_nat_get_offset (const struct nf_conn *ct, enum ip_conntrack_dir dir, u32 seq)
void	nf_nat_set_seq_adjust (struct nf_conn *ct, enum ip_conntrack_info ctinfo, __be32 seq, s16 off)
	EXPORT_SYMBOL_GPL (nf_nat_set_seq_adjust)
void	nf_nat_tcp_seq_adjust (struct sk_buff *skb, struct nf_conn *ct, u32 ctinfo, int off)
	EXPORT_SYMBOL_GPL (nf_nat_tcp_seq_adjust)
int	__nf_nat_mangle_tcp_packet (struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, unsigned int protoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len, bool adjust)
	EXPORT_SYMBOL (__nf_nat_mangle_tcp_packet)
int	nf_nat_mangle_udp_packet (struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, unsigned int protoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len)
	EXPORT_SYMBOL (nf_nat_mangle_udp_packet)
int	nf_nat_seq_adjust (struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, unsigned int protoff)
void	nf_nat_follow_master (struct nf_conn *ct, struct nf_conntrack_expect *exp)
	EXPORT_SYMBOL (nf_nat_follow_master)

Macro Definition Documentation

#define DUMP_OFFSET

(

x

)

Value:

pr_debug("offset_before=%d, offset_after=%d, correction_pos=%u\n", \
         x->offset_before, x->offset_after, x->correction_pos);

Definition at line 28 of file nf_nat_helper.c.

Function Documentation

int __nf_nat_mangle_tcp_packet	(	struct sk_buff *	skb,
		struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		unsigned int	protoff,
		unsigned int	match_offset,
		unsigned int	match_len,
		const char *	rep_buffer,
		unsigned int	rep_len,
		bool	adjust
	)

Definition at line 176 of file nf_nat_helper.c.

EXPORT_SYMBOL

(

__nf_nat_mangle_tcp_packet

)

EXPORT_SYMBOL

(

nf_nat_mangle_udp_packet

)

EXPORT_SYMBOL

(

nf_nat_follow_master

)

EXPORT_SYMBOL_GPL

(

nf_nat_set_seq_adjust

)

EXPORT_SYMBOL_GPL

(

nf_nat_tcp_seq_adjust

)

void nf_nat_follow_master	(	struct nf_conn *	ct,
		struct nf_conntrack_expect *	exp
	)

Definition at line 414 of file nf_nat_helper.c.

s16 nf_nat_get_offset	(	const struct nf_conn *	ct,
		enum ip_conntrack_dir	dir,
		u32	seq
	)

Definition at line 70 of file nf_nat_helper.c.

int nf_nat_mangle_udp_packet	(	struct sk_buff *	skb,
		struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		unsigned int	protoff,
		unsigned int	match_offset,
		unsigned int	match_len,
		const char *	rep_buffer,
		unsigned int	rep_len
	)

Definition at line 230 of file nf_nat_helper.c.

int nf_nat_seq_adjust	(	struct sk_buff *	skb,
		struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		unsigned int	protoff
	)

Definition at line 364 of file nf_nat_helper.c.

void nf_nat_set_seq_adjust	(	struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		__be32	seq,
		s16	off
	)

Definition at line 144 of file nf_nat_helper.c.

void nf_nat_tcp_seq_adjust	(	struct sk_buff *	skb,
		struct nf_conn *	ct,
		u32	ctinfo,
		int	off
	)

Definition at line 155 of file nf_nat_helper.c.