nat_ipfix_logging.c File Reference

Include dependency graph for nat_ipfix_logging.c:

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Data Structures
struct	snat_ipfix_logging_nat44_ses_args_t
struct	snat_ipfix_logging_addr_exhausted_args_t
struct	snat_ipfix_logging_max_entries_per_user_args_t
struct	nat_ipfix_logging_max_sessions_args_t
struct	nat_ipfix_logging_max_bibs_args_t
struct	nat_ipfix_logging_max_frags_ip4_args_t
struct	nat_ipfix_logging_max_frags_ip6_args_t
struct	nat_ipfix_logging_nat64_ses_args_t
struct	nat_ipfix_logging_nat64_bib_args_t

Macros
#define	NAT44_SESSION_CREATE_LEN   26
#define	NAT_ADDRESSES_EXHAUTED_LEN   13
#define	MAX_ENTRIES_PER_USER_LEN   21
#define	MAX_SESSIONS_LEN   17
#define	MAX_BIBS_LEN   17
#define	MAX_FRAGMENTS_IP4_LEN   21
#define	MAX_FRAGMENTS_IP6_LEN   33
#define	NAT64_BIB_LEN   38
#define	NAT64_SES_LEN   62
#define	NAT44_SESSION_CREATE_FIELD_COUNT   8
#define	NAT_ADDRESSES_EXHAUTED_FIELD_COUNT   3
#define	MAX_ENTRIES_PER_USER_FIELD_COUNT   5
#define	MAX_SESSIONS_FIELD_COUNT   4
#define	MAX_BIBS_FIELD_COUNT   4
#define	MAX_FRAGMENTS_FIELD_COUNT   5
#define	NAT64_BIB_FIELD_COUNT   8
#define	NAT64_SES_FIELD_COUNT   12
#define	skip_if_disabled()
#define	update_template_id(old_id, new_id)

Functions
static u8 *	snat_template_rewrite (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, nat_event_t event, quota_exceed_event_t quota_event)
	Create an IPFIX template packet rewrite string. More...
u8 *	snat_template_rewrite_addr_exhausted (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	snat_template_rewrite_nat44_session (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	snat_template_rewrite_max_entries_per_usr (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	nat_template_rewrite_max_sessions (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	nat_template_rewrite_max_bibs (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	nat_template_rewrite_nat64_bib (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
u8 *	nat_template_rewrite_nat64_session (flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *elts, u32 n_elts, u32 *stream_index)
static void	snat_ipfix_header_create (flow_report_main_t *frm, vlib_buffer_t *b0, u32 *offset)
static void	snat_ipfix_send (u32 thread_index, flow_report_main_t *frm, vlib_frame_t *f, vlib_buffer_t *b0, u16 template_id)
static void	snat_ipfix_logging_nat44_ses (u32 thread_index, u8 nat_event, u32 src_ip, u32 nat_src_ip, nat_protocol_t nat_proto, u16 src_port, u16 nat_src_port, u32 vrf_id, int do_flush)
static void	snat_ipfix_logging_addr_exhausted (u32 thread_index, u32 pool_id, int do_flush)
static void	snat_ipfix_logging_max_entries_per_usr (u32 thread_index, u32 limit, u32 src_ip, int do_flush)
static void	nat_ipfix_logging_max_ses (u32 thread_index, u32 limit, int do_flush)
static void	nat_ipfix_logging_max_bib (u32 thread_index, u32 limit, int do_flush)
static void	nat_ipfix_logging_nat64_bibe (u32 thread_index, u8 nat_event, ip6_address_t *src_ip, u32 nat_src_ip, u8 proto, u16 src_port, u16 nat_src_port, u32 vrf_id, int do_flush)
static void	nat_ipfix_logging_nat64_ses (u32 thread_index, u8 nat_event, ip6_address_t *src_ip, u32 nat_src_ip, u8 proto, u16 src_port, u16 nat_src_port, ip6_address_t *dst_ip, u32 nat_dst_ip, u16 dst_port, u16 nat_dst_port, u32 vrf_id, int do_flush)
void	snat_ipfix_flush (u32 thread_index)
void	snat_ipfix_flush_from_main (void)
void	snat_ipfix_logging_nat44_ses_create (u32 thread_index, u32 src_ip, u32 nat_src_ip, nat_protocol_t nat_proto, u16 src_port, u16 nat_src_port, u32 vrf_id)
	Generate NAT44 session create event. More...
void	snat_ipfix_logging_nat44_ses_delete (u32 thread_index, u32 src_ip, u32 nat_src_ip, nat_protocol_t nat_proto, u16 src_port, u16 nat_src_port, u32 vrf_id)
	Generate NAT44 session delete event. More...
void	snat_ipfix_logging_addresses_exhausted (u32 thread_index, u32 pool_id)
	Generate NAT addresses exhausted event. More...
void	snat_ipfix_logging_max_entries_per_user (u32 thread_index, u32 limit, u32 src_ip)
	Generate maximum entries per user exceeded event. More...
vlib_frame_t *	deterministic_nat_data_callback (flow_report_main_t *frm, flow_report_t *fr, vlib_frame_t *f, u32 *to_next, u32 node_index)
void	nat_ipfix_logging_max_sessions (u32 thread_index, u32 limit)
	Generate maximum session entries exceeded event. More...
void	nat_ipfix_logging_max_bibs (u32 thread_index, u32 limit)
	Generate maximum BIB entries exceeded event. More...
void	nat_ipfix_logging_nat64_bib (u32 thread_index, ip6_address_t *src_ip, ip4_address_t *nat_src_ip, u8 proto, u16 src_port, u16 nat_src_port, u32 vrf_id, u8 is_create)
	Generate NAT64 BIB create and delete events. More...
void	nat_ipfix_logging_nat64_session (u32 thread_index, ip6_address_t *src_ip, ip4_address_t *nat_src_ip, u8 proto, u16 src_port, u16 nat_src_port, ip6_address_t *dst_ip, ip4_address_t *nat_dst_ip, u16 dst_port, u16 nat_dst_port, u32 vrf_id, u8 is_create)
	Generate NAT64 session create and delete events. More...
vlib_frame_t *	data_callback (flow_report_main_t *frm, flow_report_t *fr, vlib_frame_t *f, u32 *to_next, u32 node_index)
int	snat_ipfix_logging_enable_disable (int enable, u32 domain_id, u16 src_port)
	Enable/disable NAT plugin IPFIX logging. More...
void	snat_ipfix_logging_init (vlib_main_t *vm)
	Initialize NAT plugin IPFIX logging. More...
static uword	ipfix_flush_process (vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)

Variables
vlib_node_registration_t	snat_ipfix_flush_node
	(constructor) VLIB_REGISTER_NODE (snat_ipfix_flush_node) More...
snat_ipfix_logging_main_t	snat_ipfix_logging_main

Macro Definition Documentation

MAX_BIBS_FIELD_COUNT

#define MAX_BIBS_FIELD_COUNT   4

Definition at line 41 of file nat_ipfix_logging.c.

MAX_BIBS_LEN

#define MAX_BIBS_LEN   17

Definition at line 31 of file nat_ipfix_logging.c.

MAX_ENTRIES_PER_USER_FIELD_COUNT

#define MAX_ENTRIES_PER_USER_FIELD_COUNT   5

Definition at line 39 of file nat_ipfix_logging.c.

MAX_ENTRIES_PER_USER_LEN

#define MAX_ENTRIES_PER_USER_LEN   21

Definition at line 29 of file nat_ipfix_logging.c.

MAX_FRAGMENTS_FIELD_COUNT

#define MAX_FRAGMENTS_FIELD_COUNT   5

Definition at line 42 of file nat_ipfix_logging.c.

MAX_FRAGMENTS_IP4_LEN

#define MAX_FRAGMENTS_IP4_LEN   21

Definition at line 32 of file nat_ipfix_logging.c.

MAX_FRAGMENTS_IP6_LEN

#define MAX_FRAGMENTS_IP6_LEN   33

Definition at line 33 of file nat_ipfix_logging.c.

MAX_SESSIONS_FIELD_COUNT

#define MAX_SESSIONS_FIELD_COUNT   4

Definition at line 40 of file nat_ipfix_logging.c.

MAX_SESSIONS_LEN

#define MAX_SESSIONS_LEN   17

Definition at line 30 of file nat_ipfix_logging.c.

NAT44_SESSION_CREATE_FIELD_COUNT

#define NAT44_SESSION_CREATE_FIELD_COUNT   8

Definition at line 37 of file nat_ipfix_logging.c.

NAT44_SESSION_CREATE_LEN

#define NAT44_SESSION_CREATE_LEN   26

Definition at line 27 of file nat_ipfix_logging.c.

NAT64_BIB_FIELD_COUNT

#define NAT64_BIB_FIELD_COUNT   8

Definition at line 43 of file nat_ipfix_logging.c.

NAT64_BIB_LEN

#define NAT64_BIB_LEN   38

Definition at line 34 of file nat_ipfix_logging.c.

NAT64_SES_FIELD_COUNT

#define NAT64_SES_FIELD_COUNT   12

Definition at line 44 of file nat_ipfix_logging.c.

NAT64_SES_LEN

#define NAT64_SES_LEN   62

Definition at line 35 of file nat_ipfix_logging.c.

NAT_ADDRESSES_EXHAUTED_FIELD_COUNT

#define NAT_ADDRESSES_EXHAUTED_FIELD_COUNT   3

Definition at line 38 of file nat_ipfix_logging.c.

NAT_ADDRESSES_EXHAUTED_LEN

#define NAT_ADDRESSES_EXHAUTED_LEN   13

Definition at line 28 of file nat_ipfix_logging.c.

skip_if_disabled

#define skip_if_disabled

(

)

Value:

do {                                                              \
  snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main;     \
  if (PREDICT_TRUE (!clib_atomic_fetch_or(&silm->enabled, 0)))    \
    return;                                                       \
} while (0)

Definition at line 116 of file nat_ipfix_logging.c.

update_template_id

#define update_template_id	(		old_id,
			new_id
	)

Value:

do {                                                      \
  u16 template_id = clib_atomic_fetch_or(old_id, 0);      \
  clib_atomic_cmp_and_swap(old_id, template_id, new_id);  \
} while (0)

Definition at line 123 of file nat_ipfix_logging.c.

Function Documentation

data_callback()

vlib_frame_t* data_callback	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		vlib_frame_t *	f,
		u32 *	to_next,
		u32	node_index
	)

Definition at line 1489 of file nat_ipfix_logging.c.

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deterministic_nat_data_callback()

vlib_frame_t* deterministic_nat_data_callback	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		vlib_frame_t *	f,
		u32 *	to_next,
		u32	node_index
	)

Definition at line 1382 of file nat_ipfix_logging.c.

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ipfix_flush_process()

static uword ipfix_flush_process ( vlib_main_t *  vm, vlib_node_runtime_t *  rt, vlib_frame_t *  f  )

static

Definition at line 1637 of file nat_ipfix_logging.c.

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nat_ipfix_logging_max_bib()

static void nat_ipfix_logging_max_bib ( u32  thread_index, u32  limit, int  do_flush  )

static

Definition at line 944 of file nat_ipfix_logging.c.

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nat_ipfix_logging_max_bibs()

void nat_ipfix_logging_max_bibs	(	u32	thread_index,
		u32	limit
	)

Generate maximum BIB entries exceeded event.

Parameters

thread_index	thread index
limit	configured limit

Definition at line 1414 of file nat_ipfix_logging.c.

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nat_ipfix_logging_max_ses()

static void nat_ipfix_logging_max_ses ( u32  thread_index, u32  limit, int  do_flush  )

static

Definition at line 856 of file nat_ipfix_logging.c.

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nat_ipfix_logging_max_sessions()

void nat_ipfix_logging_max_sessions	(	u32	thread_index,
		u32	limit
	)

Generate maximum session entries exceeded event.

Parameters

thread_index	thread index
limit	configured limit

Definition at line 1399 of file nat_ipfix_logging.c.

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nat_ipfix_logging_nat64_bib()

void nat_ipfix_logging_nat64_bib	(	u32	thread_index,
		ip6_address_t *	src_ip,
		ip4_address_t *	nat_src_ip,
		u8	proto,
		u16	src_port,
		u16	nat_src_port,
		u32	vrf_id,
		u8	is_create
	)

Generate NAT64 BIB create and delete events.

Parameters

thread_index	thread index
src_ip	source IPv6 address
nat_src_ip	transaltes source IPv4 address
proto	L4 protocol
src_port	source port
nat_src_port	translated source port
vrf_id	VRF ID
is_create	non-zero value if create event otherwise delete event

Definition at line 1435 of file nat_ipfix_logging.c.

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nat_ipfix_logging_nat64_bibe()

static void nat_ipfix_logging_nat64_bibe ( u32  thread_index, u8  nat_event, ip6_address_t *  src_ip, u32  nat_src_ip, u8  proto, u16  src_port, u16  nat_src_port, u32  vrf_id, int  do_flush  )

static

Definition at line 1032 of file nat_ipfix_logging.c.

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nat_ipfix_logging_nat64_ses()

static void nat_ipfix_logging_nat64_ses ( u32  thread_index, u8  nat_event, ip6_address_t *  src_ip, u32  nat_src_ip, u8  proto, u16  src_port, u16  nat_src_port, ip6_address_t *  dst_ip, u32  nat_dst_ip, u16  dst_port, u16  nat_dst_port, u32  vrf_id, int  do_flush  )

static

Definition at line 1133 of file nat_ipfix_logging.c.

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nat_ipfix_logging_nat64_session()

void nat_ipfix_logging_nat64_session	(	u32	thread_index,
		ip6_address_t *	src_ip,
		ip4_address_t *	nat_src_ip,
		u8	proto,
		u16	src_port,
		u16	nat_src_port,
		ip6_address_t *	dst_ip,
		ip4_address_t *	nat_dst_ip,
		u16	dst_port,
		u16	nat_dst_port,
		u32	vrf_id,
		u8	is_create
	)

Generate NAT64 session create and delete events.

Parameters

thread_index	thread index
src_ip	source IPv6 address
nat_src_ip	transaltes source IPv4 address
proto	L4 protocol
src_port	source port
nat_src_port	translated source port
dst_ip	destination IPv6 address
nat_dst_ip	destination IPv4 address
dst_port	destination port
nat_dst_port	translated destination port
vrf_id	VRF ID
is_create	non-zero value if create event otherwise delete event

Definition at line 1468 of file nat_ipfix_logging.c.

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nat_template_rewrite_max_bibs()

u8* nat_template_rewrite_max_bibs	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 444 of file nat_ipfix_logging.c.

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nat_template_rewrite_max_sessions()

u8* nat_template_rewrite_max_sessions	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 430 of file nat_ipfix_logging.c.

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nat_template_rewrite_nat64_bib()

u8* nat_template_rewrite_nat64_bib	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 458 of file nat_ipfix_logging.c.

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nat_template_rewrite_nat64_session()

u8* nat_template_rewrite_nat64_session	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 471 of file nat_ipfix_logging.c.

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snat_ipfix_flush()

void snat_ipfix_flush

(

u32

thread_index

)

Definition at line 1248 of file nat_ipfix_logging.c.

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snat_ipfix_flush_from_main()

void snat_ipfix_flush_from_main

(

void

)

Definition at line 1265 of file nat_ipfix_logging.c.

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snat_ipfix_header_create()

static void snat_ipfix_header_create ( flow_report_main_t *  frm, vlib_buffer_t *  b0, u32 *  offset  )

inlinestatic

Definition at line 484 of file nat_ipfix_logging.c.

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snat_ipfix_logging_addr_exhausted()

static void snat_ipfix_logging_addr_exhausted ( u32  thread_index, u32  pool_id, int  do_flush  )

static

Definition at line 680 of file nat_ipfix_logging.c.

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snat_ipfix_logging_addresses_exhausted()

void snat_ipfix_logging_addresses_exhausted	(	u32	thread_index,
		u32	pool_id
	)

Generate NAT addresses exhausted event.

Parameters

thread_index	thread index
pool_id	NAT pool ID

Definition at line 1356 of file nat_ipfix_logging.c.

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snat_ipfix_logging_enable_disable()

int snat_ipfix_logging_enable_disable	(	int	enable,
		u32	domain_id,
		u16	src_port
	)

Enable/disable NAT plugin IPFIX logging.

Parameters

enable	1 if enable, 0 if disable
domain_id	observation domain ID
src_port	source port number

Returns

0 if success

Definition at line 1513 of file nat_ipfix_logging.c.

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snat_ipfix_logging_init()

void snat_ipfix_logging_init

(

vlib_main_t *

vm

)

Initialize NAT plugin IPFIX logging.

Parameters

vm

vlib main

Definition at line 1620 of file nat_ipfix_logging.c.

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snat_ipfix_logging_max_entries_per_user()

void snat_ipfix_logging_max_entries_per_user	(	u32	thread_index,
		u32	limit,
		u32	src_ip
	)

Generate maximum entries per user exceeded event.

Parameters

thread_index	thread index
limit	maximum NAT entries that can be created per user
src_ip	source IPv4 address

Definition at line 1372 of file nat_ipfix_logging.c.

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snat_ipfix_logging_max_entries_per_usr()

static void snat_ipfix_logging_max_entries_per_usr ( u32  thread_index, u32  limit, u32  src_ip, int  do_flush  )

static

Definition at line 764 of file nat_ipfix_logging.c.

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snat_ipfix_logging_nat44_ses()

static void snat_ipfix_logging_nat44_ses ( u32  thread_index, u8  nat_event, u32  src_ip, u32  nat_src_ip, nat_protocol_t  nat_proto, u16  src_port, u16  nat_src_port, u32  vrf_id, int  do_flush  )

static

Definition at line 576 of file nat_ipfix_logging.c.

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snat_ipfix_logging_nat44_ses_create()

void snat_ipfix_logging_nat44_ses_create	(	u32	thread_index,
		u32	src_ip,
		u32	nat_src_ip,
		nat_protocol_t	nat_proto,
		u16	src_port,
		u16	nat_src_port,
		u32	vrf_id
	)

Generate NAT44 session create event.

Parameters

thread_index	thread index
src_ip	source IPv4 address
nat_src_ip	transaltes source IPv4 address
nat_proto	NAT transport protocol
src_port	source port
nat_src_port	translated source port
vrf_id	VRF ID

Definition at line 1309 of file nat_ipfix_logging.c.

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snat_ipfix_logging_nat44_ses_delete()

void snat_ipfix_logging_nat44_ses_delete	(	u32	thread_index,
		u32	src_ip,
		u32	nat_src_ip,
		nat_protocol_t	nat_proto,
		u16	src_port,
		u16	nat_src_port,
		u32	vrf_id
	)

Generate NAT44 session delete event.

Parameters

thread_index	thread index
src_ip	source IPv4 address
nat_src_ip	transaltes source IPv4 address
nat_proto	NAT transport protocol
src_port	source port
nat_src_port	translated source port
vrf_id	VRF ID

Definition at line 1335 of file nat_ipfix_logging.c.

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snat_ipfix_send()

static void snat_ipfix_send ( u32  thread_index, flow_report_main_t *  frm, vlib_frame_t *  f, vlib_buffer_t *  b0, u16  template_id  )

inlinestatic

Definition at line 536 of file nat_ipfix_logging.c.

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snat_template_rewrite()

static u8* snat_template_rewrite ( flow_report_main_t *  frm, flow_report_t *  fr, ip4_address_t *  collector_address, ip4_address_t *  src_address, u16  collector_port, nat_event_t  event, quota_exceed_event_t  quota_event  )

inlinestatic

Create an IPFIX template packet rewrite string.

Parameters

frm	flow report main
fr	flow report
collector_address	collector address
src_address	source address
collector_port	collector
event	NAT event ID
quota_event	NAT quota exceeded event ID

Returns

template packet

Definition at line 143 of file nat_ipfix_logging.c.

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snat_template_rewrite_addr_exhausted()

u8* snat_template_rewrite_addr_exhausted	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 390 of file nat_ipfix_logging.c.

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snat_template_rewrite_max_entries_per_usr()

u8* snat_template_rewrite_max_entries_per_usr	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 416 of file nat_ipfix_logging.c.

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snat_template_rewrite_nat44_session()

u8* snat_template_rewrite_nat44_session	(	flow_report_main_t *	frm,
		flow_report_t *	fr,
		ip4_address_t *	collector_address,
		ip4_address_t *	src_address,
		u16	collector_port,
		ipfix_report_element_t *	elts,
		u32	n_elts,
		u32 *	stream_index
	)

Definition at line 403 of file nat_ipfix_logging.c.

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Variable Documentation

snat_ipfix_flush_node

vlib_node_registration_t snat_ipfix_flush_node

Initial value:

= {
  .function = ipfix_flush_process,
  .name = "snat-ipfix-flush",
  .type = VLIB_NODE_TYPE_INPUT,
  .state = VLIB_NODE_STATE_INTERRUPT,
}

(constructor) VLIB_REGISTER_NODE (snat_ipfix_flush_node)

Definition at line 24 of file nat_ipfix_logging.c.

snat_ipfix_logging_main

snat_ipfix_logging_main_t snat_ipfix_logging_main

Definition at line 25 of file nat_ipfix_logging.c.