bfd_main.h File Reference

BFD global declarations. More...

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Data Structures
struct	bfd_auth_key_t
struct	bfd_session_s
struct	bfd_main_t
struct	bfd_input_trace_t
	bfd packet trace capture More...

Macros
#define	foreach_bfd_mode(F)
#define	F(x)   BFD_MODE_##x,
#define	foreach_bfd_poll_state(F)
#define	F(x)   BFD_POLL_##x,
#define	foreach_bfd_hop(F)
	hop types More...
#define	F(sym, str)   BFD_HOP_TYPE_##sym,
#define	foreach_bfd_listen_event(F)
	listener events More...
#define	F(sym, str)   BFD_LISTEN_EVENT_##sym,
#define	foreach_bfd_error(F)
	Packet counters. More...
#define	F(sym, str)   BFD_ERROR_##sym,
#define	USEC_PER_MS   (1000LL)
#define	MSEC_PER_SEC   (1000LL)
#define	NSEC_PER_USEC   (1000LL)
#define	USEC_PER_SEC   (MSEC_PER_SEC * USEC_PER_MS)
#define	NSEC_PER_SEC   (NSEC_PER_USEC * USEC_PER_SEC)
#define	SEC_PER_NSEC   ((f64)1/NSEC_PER_SEC)
#define	BFD_TW_TPS   (MSEC_PER_SEC)
	timing wheel tick-rate, 1ms should be good enough More...
#define	BFD_DEFAULT_DESIRED_MIN_TX_USEC   USEC_PER_SEC
	default, slow transmission interval for BFD packets, per spec at least 1s More...
#define	BFD_REQUIRED_MIN_RX_USEC_WHILE_ECHO   USEC_PER_SEC
	minimum required min rx set locally when echo function is used, per spec should be set to at least 1s More...

Typedefs
typedef struct bfd_session_s	bfd_session_t
typedef void(*	bfd_notify_fn_t) (bfd_listen_event_e, const bfd_session_t *)
	session nitification call back function type More...

Enumerations
enum	bfd_mode_e { foreach_bfd_mode =(F) }
enum	bfd_poll_state_e { foreach_bfd_poll_state =(F) }
enum	bfd_hop_type_e { foreach_bfd_hop =(F) }
enum	bfd_listen_event_e { foreach_bfd_listen_event =(F) }
enum	bfd_error_t { foreach_bfd_error }
enum	bfd_process_event_e { BFD_EVENT_RESCHEDULE = 1, BFD_EVENT_NEW_SESSION, BFD_EVENT_CONFIG_CHANGED }

Functions
typedef	CLIB_PACKED (struct { u32 discriminator;u64 expire_time_nsec;u64 checksum;}) bfd_echo_pkt_t
	echo packet structure More...
static void	bfd_lock (bfd_main_t *bm)
static void	bfd_unlock (bfd_main_t *bm)
static void	bfd_lock_check (bfd_main_t *bm)
u8 *	bfd_input_format_trace (u8 *s, va_list *args)
bfd_session_t *	bfd_get_session (bfd_main_t *bm, bfd_transport_e t)
void	bfd_put_session (bfd_main_t *bm, bfd_session_t *bs)
bfd_session_t *	bfd_find_session_by_idx (bfd_main_t *bm, uword bs_idx)
bfd_session_t *	bfd_find_session_by_disc (bfd_main_t *bm, u32 disc)
void	bfd_session_start (bfd_main_t *bm, bfd_session_t *bs)
void	bfd_consume_pkt (vlib_main_t *vm, bfd_main_t *bm, const bfd_pkt_t *bfd, u32 bs_idx)
int	bfd_consume_echo_pkt (vlib_main_t *vm, bfd_main_t *bm, vlib_buffer_t *b)
int	bfd_verify_pkt_common (const bfd_pkt_t *pkt)
	verify bfd packet - common checks More...
int	bfd_verify_pkt_auth (vlib_main_t *vm, const bfd_pkt_t *pkt, u16 pkt_size, bfd_session_t *bs)
	verify bfd packet - authentication More...
void	bfd_event (bfd_main_t *bm, bfd_session_t *bs)
void	bfd_init_final_control_frame (vlib_main_t *vm, vlib_buffer_t *b, bfd_main_t *bm, bfd_session_t *bs, int is_local)
u8 *	format_bfd_session (u8 *s, va_list *args)
u8 *	format_bfd_session_brief (u8 *s, va_list *args)
u8 *	format_bfd_auth_key (u8 *s, va_list *args)
void	bfd_session_set_flags (vlib_main_t *vm, bfd_session_t *bs, u8 admin_up_down)
unsigned	bfd_auth_type_supported (bfd_auth_type_e auth_type)
vnet_api_error_t	bfd_auth_activate (bfd_session_t *bs, u32 conf_key_id, u8 bfd_key_id, u8 is_delayed)
vnet_api_error_t	bfd_auth_deactivate (bfd_session_t *bs, u8 is_delayed)
vnet_api_error_t	bfd_session_set_params (bfd_main_t *bm, bfd_session_t *bs, u32 desired_min_tx_usec, u32 required_min_rx_usec, u8 detect_mult)
u32	bfd_nsec_to_usec (u64 nsec)
const char *	bfd_poll_state_string (bfd_poll_state_e state)
void	bfd_register_listener (bfd_notify_fn_t fn)
	Register a callback function to receive session notifications. More...

Variables
bfd_main_t	bfd_main

Detailed Description

BFD global declarations.

Definition in file bfd_main.h.

Macro Definition Documentation

BFD_DEFAULT_DESIRED_MIN_TX_USEC

#define BFD_DEFAULT_DESIRED_MIN_TX_USEC   USEC_PER_SEC

default, slow transmission interval for BFD packets, per spec at least 1s

Definition at line 452 of file bfd_main.h.

BFD_REQUIRED_MIN_RX_USEC_WHILE_ECHO

#define BFD_REQUIRED_MIN_RX_USEC_WHILE_ECHO   USEC_PER_SEC

minimum required min rx set locally when echo function is used, per spec should be set to at least 1s

Definition at line 458 of file bfd_main.h.

BFD_TW_TPS

#define BFD_TW_TPS   (MSEC_PER_SEC)

timing wheel tick-rate, 1ms should be good enough

Definition at line 449 of file bfd_main.h.

F [1/5]

#define F

(

x

)

BFD_MODE_##x,

Definition at line 335 of file bfd_main.h.

F [2/5]

#define F

(

x

)

BFD_POLL_##x,

Definition at line 335 of file bfd_main.h.

F [3/5]

#define F	(		sym,
			str
	)		BFD_HOP_TYPE_##sym,

Definition at line 335 of file bfd_main.h.

F [4/5]

#define F	(		sym,
			str
	)		BFD_LISTEN_EVENT_##sym,

Definition at line 335 of file bfd_main.h.

F [5/5]

#define F	(		sym,
			str
	)		BFD_ERROR_##sym,

Definition at line 335 of file bfd_main.h.

foreach_bfd_error

#define foreach_bfd_error

(

F

)

Value:

F (NONE, "good bfd packets (processed)") \
  F (BAD, "invalid bfd packets")           \
  F (DISABLED, "bfd packets received on disabled interfaces")

Packet counters.

Definition at line 328 of file bfd_main.h.

foreach_bfd_hop

#define foreach_bfd_hop

(

F

)

Value:

F (SINGLE, "single")                         \
  F (MULTI,  "multi")                          \

hop types

Definition at line 74 of file bfd_main.h.

foreach_bfd_listen_event

#define foreach_bfd_listen_event

(

F

)

Value:

F (CREATE, "sesion-created")                 \
  F (UPDATE, "session-updated")                \
  F (DELETE, "session-deleted")

listener events

Definition at line 248 of file bfd_main.h.

foreach_bfd_mode

#define foreach_bfd_mode

(

F

)

Value:

F (asynchronous)          \
  F (demand)

Definition at line 29 of file bfd_main.h.

foreach_bfd_poll_state

#define foreach_bfd_poll_state

(

F

)

Value:

F (NOT_NEEDED)                  \
  F (NEEDED)                      \
  F (IN_PROGRESS)                 \
  F (IN_PROGRESS_AND_QUEUED)

Definition at line 58 of file bfd_main.h.

MSEC_PER_SEC

#define MSEC_PER_SEC   (1000LL)

Definition at line 442 of file bfd_main.h.

NSEC_PER_SEC

#define NSEC_PER_SEC   (NSEC_PER_USEC * USEC_PER_SEC)

Definition at line 445 of file bfd_main.h.

NSEC_PER_USEC

#define NSEC_PER_USEC   (1000LL)

Definition at line 443 of file bfd_main.h.

SEC_PER_NSEC

#define SEC_PER_NSEC   ((f64)1/NSEC_PER_SEC)

Definition at line 446 of file bfd_main.h.

USEC_PER_MS

#define USEC_PER_MS   (1000LL)

Definition at line 441 of file bfd_main.h.

USEC_PER_SEC

#define USEC_PER_SEC   (MSEC_PER_SEC * USEC_PER_MS)

Definition at line 444 of file bfd_main.h.

Typedef Documentation

bfd_notify_fn_t

typedef void(* bfd_notify_fn_t) (bfd_listen_event_e, const bfd_session_t *)

session nitification call back function type

Definition at line 263 of file bfd_main.h.

bfd_session_t

typedef struct bfd_session_s bfd_session_t

Enumeration Type Documentation

bfd_error_t

enum bfd_error_t

Enumerator
foreach_bfd_error

Definition at line 333 of file bfd_main.h.

bfd_hop_type_e

enum bfd_hop_type_e

Enumerator
foreach_bfd_hop

Definition at line 78 of file bfd_main.h.

bfd_listen_event_e

enum bfd_listen_event_e

Enumerator
foreach_bfd_listen_event

Definition at line 253 of file bfd_main.h.

bfd_mode_e

enum bfd_mode_e

Enumerator
foreach_bfd_mode

Definition at line 33 of file bfd_main.h.

bfd_poll_state_e

enum bfd_poll_state_e

Enumerator
foreach_bfd_poll_state

Definition at line 64 of file bfd_main.h.

bfd_process_event_e

enum bfd_process_event_e

Enumerator
BFD_EVENT_RESCHEDULE
BFD_EVENT_NEW_SESSION
BFD_EVENT_CONFIG_CHANGED

Definition at line 348 of file bfd_main.h.

Function Documentation

bfd_auth_activate()

vnet_api_error_t bfd_auth_activate	(	bfd_session_t *	bs,
		u32	conf_key_id,
		u8	bfd_key_id,
		u8	is_delayed
	)

Definition at line 2040 of file bfd_main.c.

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bfd_auth_deactivate()

vnet_api_error_t bfd_auth_deactivate	(	bfd_session_t *	bs,
		u8	is_delayed
	)

Definition at line 2089 of file bfd_main.c.

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bfd_auth_type_supported()

unsigned bfd_auth_type_supported

(

bfd_auth_type_e

auth_type

)

Definition at line 2029 of file bfd_main.c.

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bfd_consume_echo_pkt()

int bfd_consume_echo_pkt	(	vlib_main_t *	vm,
		bfd_main_t *	bm,
		vlib_buffer_t *	b
	)

Definition at line 1946 of file bfd_main.c.

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bfd_consume_pkt()

void bfd_consume_pkt	(	vlib_main_t *	vm,
		bfd_main_t *	bm,
		const bfd_pkt_t *	bfd,
		u32	bs_idx
	)

Definition at line 1812 of file bfd_main.c.

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bfd_event()

void bfd_event	(	bfd_main_t *	bm,
		bfd_session_t *	bs
	)

Definition at line 178 of file bfd_api.c.

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bfd_find_session_by_disc()

bfd_session_t* bfd_find_session_by_disc	(	bfd_main_t *	bm,
		u32	disc
	)

Definition at line 1434 of file bfd_main.c.

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bfd_find_session_by_idx()

bfd_session_t* bfd_find_session_by_idx	(	bfd_main_t *	bm,
		uword	bs_idx
	)

Definition at line 1423 of file bfd_main.c.

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bfd_get_session()

bfd_session_t* bfd_get_session	(	bfd_main_t *	bm,
		bfd_transport_e	t
	)

Definition at line 1368 of file bfd_main.c.

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bfd_init_final_control_frame()

void bfd_init_final_control_frame	(	vlib_main_t *	vm,
		vlib_buffer_t *	b,
		bfd_main_t *	bm,
		bfd_session_t *	bs,
		int	is_local
	)

Definition at line 1039 of file bfd_main.c.

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bfd_input_format_trace()

u8* bfd_input_format_trace	(	u8 *	s,
		va_list *	args
	)

Definition at line 495 of file bfd_main.c.

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bfd_lock()

static void bfd_lock ( bfd_main_t *  bm )

inlinestatic

Definition at line 368 of file bfd_main.h.

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bfd_lock_check()

static void bfd_lock_check ( bfd_main_t *  bm )

inlinestatic

Definition at line 401 of file bfd_main.h.

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bfd_nsec_to_usec()

u32 bfd_nsec_to_usec

(

u64

nsec

)

Definition at line 61 of file bfd_main.c.

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bfd_poll_state_string()

const char* bfd_poll_state_string

(

bfd_poll_state_e

state

)

Definition at line 157 of file bfd_main.c.

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bfd_put_session()

void bfd_put_session	(	bfd_main_t *	bm,
		bfd_session_t *	bs
	)

Definition at line 1402 of file bfd_main.c.

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bfd_register_listener()

void bfd_register_listener

(

bfd_notify_fn_t

fn

)

Register a callback function to receive session notifications.

Definition at line 1326 of file bfd_main.c.

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bfd_session_set_flags()

void bfd_session_set_flags	(	vlib_main_t *	vm,
		bfd_session_t *	bs,
		u8	admin_up_down
	)

Definition at line 468 of file bfd_main.c.

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bfd_session_set_params()

vnet_api_error_t bfd_session_set_params	(	bfd_main_t *	bm,
		bfd_session_t *	bs,
		u32	desired_min_tx_usec,
		u32	required_min_rx_usec,
		u8	detect_mult
	)

Definition at line 2131 of file bfd_main.c.

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bfd_session_start()

void bfd_session_start	(	bfd_main_t *	bm,
		bfd_session_t *	bs
	)

Definition at line 455 of file bfd_main.c.

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bfd_unlock()

static void bfd_unlock ( bfd_main_t *  bm )

inlinestatic

Definition at line 385 of file bfd_main.h.

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bfd_verify_pkt_auth()

int bfd_verify_pkt_auth	(	vlib_main_t *	vm,
		const bfd_pkt_t *	pkt,
		u16	pkt_size,
		bfd_session_t *	bs
	)

verify bfd packet - authentication

Parameters

pkt

Returns

1 if bfd packet is valid

Definition at line 1733 of file bfd_main.c.

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bfd_verify_pkt_common()

int bfd_verify_pkt_common

(

const bfd_pkt_t *

pkt

)

verify bfd packet - common checks

Parameters

pkt

Returns

1 if bfd packet is valid

Definition at line 1453 of file bfd_main.c.

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CLIB_PACKED()

typedef CLIB_PACKED

(

struct { u32 discriminator;u64 expire_time_nsec;u64 checksum;}

)

echo packet structure

format_bfd_auth_key()

u8* format_bfd_auth_key	(	u8 *	s,
		va_list *	args
	)

Definition at line 78 of file bfd_main.c.

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format_bfd_session()

u8* format_bfd_session	(	u8 *	s,
		va_list *	args
	)

Definition at line 1982 of file bfd_main.c.

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format_bfd_session_brief()

u8* format_bfd_session_brief	(	u8 *	s,
		va_list *	args
	)

Definition at line 2018 of file bfd_main.c.

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Variable Documentation

bfd_main

bfd_main_t bfd_main

Definition at line 2288 of file bfd_main.c.