snat_det.h File Reference

deterministic NAT definitions More...

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Macros
#define	SNAT_DET_SES_PER_USER   1000

Functions
int	snat_det_add_map (snat_main_t *sm, ip4_address_t *in_addr, u8 in_plen, ip4_address_t *out_addr, u8 out_plen, int is_add)
	Add/delete deterministic NAT mapping. More...
static int	is_addr_in_net (ip4_address_t *addr, ip4_address_t *net, u8 plen)
static snat_det_map_t *	snat_det_map_by_user (snat_main_t *sm, ip4_address_t *user_addr)
static snat_det_map_t *	snat_det_map_by_out (snat_main_t *sm, ip4_address_t *out_addr)
static void	snat_det_forward (snat_det_map_t *dm, ip4_address_t *in_addr, ip4_address_t *out_addr, u16 *lo_port)
static void	snat_det_reverse (snat_det_map_t *dm, ip4_address_t *out_addr, u16 out_port, ip4_address_t *in_addr)
static u32	snat_det_user_ses_offset (ip4_address_t *addr, u8 plen)
static snat_det_session_t *	snat_det_get_ses_by_out (snat_det_map_t *dm, ip4_address_t *in_addr, u64 out_key)
static snat_det_session_t *	snat_det_find_ses_by_in (snat_det_map_t *dm, ip4_address_t *in_addr, u16 in_port, snat_det_out_key_t out_key)
static snat_det_session_t *	snat_det_ses_create (snat_det_map_t *dm, ip4_address_t *in_addr, u16 in_port, snat_det_out_key_t *out)
static void	snat_det_ses_close (snat_det_map_t *dm, snat_det_session_t *ses)

Detailed Description

deterministic NAT definitions

Definition in file snat_det.h.

Macro Definition Documentation

#define SNAT_DET_SES_PER_USER   1000

Definition at line 30 of file snat_det.h.

Function Documentation

static int is_addr_in_net ( ip4_address_t *  addr, ip4_address_t *  net, u8  plen  )

inlinestatic

Definition at line 37 of file snat_det.h.

int snat_det_add_map	(	snat_main_t *	sm,
		ip4_address_t *	in_addr,
		u8	in_plen,
		ip4_address_t *	out_addr,
		u8	out_plen,
		int	is_add
	)

Add/delete deterministic NAT mapping.

Create bijective mapping of inside address to outside address and port range pairs, with the purpose of enabling deterministic NAT to reduce logging in CGN deployments.

Parameters

sm	SNAT main.
in_addr	Inside network address.
in_plen	Inside network prefix length.
out_addr	Outside network address.
out_plen	Outside network prefix length.
is_add	If 0 delete, otherwise add.

Definition at line 40 of file snat_det.c.

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static snat_det_session_t* snat_det_find_ses_by_in ( snat_det_map_t *  dm, ip4_address_t *  in_addr, u16  in_port, snat_det_out_key_t  out_key  )

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Definition at line 129 of file snat_det.h.

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static void snat_det_forward ( snat_det_map_t *  dm, ip4_address_t *  in_addr, ip4_address_t *  out_addr, u16 *  lo_port  )

inlinestatic

Definition at line 75 of file snat_det.h.

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static snat_det_session_t* snat_det_get_ses_by_out ( snat_det_map_t *  dm, ip4_address_t *  in_addr, u64  out_key  )

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Definition at line 112 of file snat_det.h.

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static snat_det_map_t* snat_det_map_by_out ( snat_main_t *  sm, ip4_address_t *  out_addr  )

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Definition at line 60 of file snat_det.h.

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static snat_det_map_t* snat_det_map_by_user ( snat_main_t *  sm, ip4_address_t *  user_addr  )

inlinestatic

Definition at line 45 of file snat_det.h.

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static void snat_det_reverse ( snat_det_map_t *  dm, ip4_address_t *  out_addr, u16  out_port, ip4_address_t *  in_addr  )

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Definition at line 90 of file snat_det.h.

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static void snat_det_ses_close ( snat_det_map_t *  dm, snat_det_session_t *  ses  )

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Definition at line 179 of file snat_det.h.

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static snat_det_session_t* snat_det_ses_create ( snat_det_map_t *  dm, ip4_address_t *  in_addr, u16  in_port, snat_det_out_key_t *  out  )

inlinestatic

Definition at line 150 of file snat_det.h.

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static u32 snat_det_user_ses_offset ( ip4_address_t *  addr, u8  plen  )

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Definition at line 105 of file snat_det.h.

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