nf_conntrack.h File Reference

#include <linux/netfilter/nf_conntrack_common.h>
#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/atomic.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
#include <linux/netfilter/nf_conntrack_dccp.h>
#include <linux/netfilter/nf_conntrack_sctp.h>
#include <linux/netfilter/nf_conntrack_proto_gre.h>
#include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
#include <net/netfilter/nf_conntrack_tuple.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/timer.h>
#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>

Go to the source code of this file.

Data Structures
union	nf_conntrack_proto
union	nf_conntrack_expect_proto
struct	nf_conn_help
struct	nf_conn

Macros
#define	NF_CT_ASSERT(x)
#define	NF_CT_MAX_EXPECT_CLASSES   4
#define	nf_ct_tuple(ct, dir)   (&(ct)->tuplehash[dir].tuple)
#define	master_ct(conntr)   (conntr->master)
#define	NF_CT_STAT_INC(net, count)   __this_cpu_inc((net)->ct.stat->count)
#define	NF_CT_STAT_INC_ATOMIC(net, count)   this_cpu_inc((net)->ct.stat->count)
#define	MODULE_ALIAS_NFCT_HELPER(helper)   MODULE_ALIAS("nfct-helper-" helper)

Functions
void	nf_conntrack_alter_reply (struct nf_conn *ct, const struct nf_conntrack_tuple *newreply)
int	nf_conntrack_tuple_taken (const struct nf_conntrack_tuple *tuple, const struct nf_conn *ignored_conntrack)
int	nf_ct_l3proto_try_module_get (unsigned short l3proto)
void	nf_ct_l3proto_module_put (unsigned short l3proto)
void *	nf_ct_alloc_hashtable (unsigned int *sizep, int nulls)
void	nf_ct_free_hashtable (void *hash, unsigned int size)
struct nf_conntrack_tuple_hash *	__nf_conntrack_find (struct net *net, u16 zone, const struct nf_conntrack_tuple *tuple)
int	nf_conntrack_hash_check_insert (struct nf_conn *ct)
void	nf_ct_delete_from_lists (struct nf_conn *ct)
void	nf_ct_insert_dying_list (struct nf_conn *ct)
void	nf_conntrack_flush_report (struct net *net, u32 pid, int report)
bool	nf_ct_get_tuplepr (const struct sk_buff *skb, unsigned int nhoff, u_int16_t l3num, struct nf_conntrack_tuple *tuple)
bool	nf_ct_invert_tuplepr (struct nf_conntrack_tuple *inverse, const struct nf_conntrack_tuple *orig)
void	__nf_ct_refresh_acct (struct nf_conn *ct, enum ip_conntrack_info ctinfo, const struct sk_buff *skb, unsigned long extra_jiffies, int do_acct)
bool	__nf_ct_kill_acct (struct nf_conn *ct, enum ip_conntrack_info ctinfo, const struct sk_buff *skb, int do_acct)
	DECLARE_PER_CPU (struct nf_conn, nf_conntrack_untracked)
void	nf_ct_untracked_status_or (unsigned long bits)
void	nf_ct_iterate_cleanup (struct net *net, int(*iter)(struct nf_conn *i, void *data), void *data)
void	nf_conntrack_free (struct nf_conn *ct)
struct nf_conn *	nf_conntrack_alloc (struct net *net, u16 zone, const struct nf_conntrack_tuple *orig, const struct nf_conntrack_tuple *repl, gfp_t gfp)
int	nf_conntrack_set_hashsize (const char *val, struct kernel_param *kp)
void	init_nf_conntrack_hash_rnd (void)

Variables
struct net	init_net
s16(*	nf_ct_nat_offset )(const struct nf_conn *ct, enum ip_conntrack_dir dir, u32 seq)
unsigned int	nf_conntrack_htable_size
unsigned int	nf_conntrack_max
unsigned int	nf_conntrack_hash_rnd

Macro Definition Documentation

#define master_ct

(

conntr

)

(conntr->master)

Definition at line 132 of file nf_conntrack.h.

#define MODULE_ALIAS_NFCT_HELPER

(

helper

)

MODULE_ALIAS("nfct-helper-" helper)

Definition at line 298 of file nf_conntrack.h.

#define NF_CT_ASSERT

(

x

)

Definition at line 49 of file nf_conntrack.h.

#define NF_CT_MAX_EXPECT_CLASSES   4

Definition at line 55 of file nf_conntrack.h.

#define NF_CT_STAT_INC	(		net,
			count
	)		__this_cpu_inc((net)->ct.stat->count)

Definition at line 295 of file nf_conntrack.h.

#define NF_CT_STAT_INC_ATOMIC	(		net,
			count
	)		this_cpu_inc((net)->ct.stat->count)

Definition at line 296 of file nf_conntrack.h.

#define nf_ct_tuple	(		ct,
			dir
	)		(&(ct)->tuplehash[dir].tuple)

Definition at line 129 of file nf_conntrack.h.

Function Documentation

struct nf_conntrack_tuple_hash* __nf_conntrack_find ( struct net *  net, u16  zone, const struct nf_conntrack_tuple *  tuple  )

read

Definition at line 362 of file nf_conntrack_core.c.

bool __nf_ct_kill_acct	(	struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		const struct sk_buff *	skb,
		int	do_acct
	)

Definition at line 1116 of file nf_conntrack_core.c.

void __nf_ct_refresh_acct	(	struct nf_conn *	ct,
		enum ip_conntrack_info	ctinfo,
		const struct sk_buff *	skb,
		unsigned long	extra_jiffies,
		int	do_acct
	)

Definition at line 1077 of file nf_conntrack_core.c.

DECLARE_PER_CPU	(	struct nf_conn	,
		nf_conntrack_untracked
	)

void init_nf_conntrack_hash_rnd

(

void

)

Definition at line 662 of file nf_conntrack_core.c.

struct nf_conn* nf_conntrack_alloc ( struct net *  net, u16  zone, const struct nf_conntrack_tuple *  orig, const struct nf_conntrack_tuple *  repl, gfp_t  gfp  )

read

Definition at line 753 of file nf_conntrack_core.c.

void nf_conntrack_alter_reply	(	struct nf_conn *	ct,
		const struct nf_conntrack_tuple *	newreply
	)

Definition at line 1055 of file nf_conntrack_core.c.

void nf_conntrack_flush_report	(	struct net *	net,
		u32	pid,
		int	report
	)

Definition at line 1304 of file nf_conntrack_core.c.

void nf_conntrack_free

(

struct nf_conn *

ct

)

Definition at line 762 of file nf_conntrack_core.c.

int nf_conntrack_hash_check_insert

(

struct nf_conn *

ct

)

Definition at line 421 of file nf_conntrack_core.c.

int nf_conntrack_set_hashsize	(	const char *	val,
		struct kernel_param *	kp
	)

Definition at line 1417 of file nf_conntrack_core.c.

int nf_conntrack_tuple_taken	(	const struct nf_conntrack_tuple *	tuple,
		const struct nf_conn *	ignored_conntrack
	)

Definition at line 577 of file nf_conntrack_core.c.

void* nf_ct_alloc_hashtable	(	unsigned int *	sizep,
		int	nulls
	)

Definition at line 1393 of file nf_conntrack_core.c.

void nf_ct_delete_from_lists

(

struct nf_conn *

ct

)

Definition at line 240 of file nf_conntrack_core.c.

void nf_ct_free_hashtable	(	void *	hash,
		unsigned int	size
	)

Definition at line 1294 of file nf_conntrack_core.c.

bool nf_ct_get_tuplepr	(	const struct sk_buff *	skb,
		unsigned int	nhoff,
		u_int16_t	l3num,
		struct nf_conntrack_tuple *	tuple
	)

Definition at line 138 of file nf_conntrack_core.c.

void nf_ct_insert_dying_list

(

struct nf_conn *

ct

)

Definition at line 277 of file nf_conntrack_core.c.

bool nf_ct_invert_tuplepr	(	struct nf_conntrack_tuple *	inverse,
		const struct nf_conntrack_tuple *	orig
	)

Definition at line 1038 of file nf_conntrack_core.c.

void nf_ct_iterate_cleanup	(	struct net *	net,
		int(*)(struct nf_conn *i, void *data)	iter,
		void *	data
	)

Definition at line 1247 of file nf_conntrack_core.c.

void nf_ct_l3proto_module_put

(

unsigned short

l3proto

)

Definition at line 119 of file nf_conntrack_proto.c.

int nf_ct_l3proto_try_module_get

(

unsigned short

l3proto

)

Definition at line 101 of file nf_conntrack_proto.c.

void nf_ct_untracked_status_or

(

unsigned long

bits

)

Definition at line 1472 of file nf_conntrack_core.c.

Variable Documentation

struct net init_net

Definition at line 30 of file net_namespace.c.

unsigned int nf_conntrack_hash_rnd

unsigned int nf_conntrack_htable_size

unsigned int nf_conntrack_max

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

Definition at line 1611 of file nf_conntrack_core.c.