bfd_main.c File Reference

BFD nodes implementation. More...

Include dependency graph for bfd_main.c:

Go to the source code of this file.

Data Structures
struct	bfd_rpc_event_t
struct	bfd_rpc_notify_listeners_t

Macros
#define	F(x)

Enumerations
enum	bfd_input_next_t { BFD_INPUT_NEXT_NORMAL, BFD_INPUT_N_NEXT }

Functions
static u64	bfd_calc_echo_checksum (u32 discriminator, u64 expire_time, u32 secret)
static u64	bfd_usec_to_clocks (const bfd_main_t *bm, u64 us)
u32	bfd_clocks_to_usec (const bfd_main_t *bm, u64 clocks)
u8 *	format_bfd_auth_key (u8 *s, va_list *args)
static void	bfd_on_state_change (bfd_main_t *bm, bfd_session_t *bs, u64 now, int handling_wakeup)
static void	bfd_set_defaults (bfd_main_t *bm, bfd_session_t *bs)
static void	bfd_set_diag (bfd_session_t *bs, bfd_diag_code_e code)
static void	bfd_set_state (bfd_main_t *bm, bfd_session_t *bs, bfd_state_e new_state, int handling_wakeup)
const char *	bfd_poll_state_string (bfd_poll_state_e state)
static void	bfd_set_poll_state (bfd_session_t *bs, bfd_poll_state_e state)
static void	bfd_recalc_tx_interval (bfd_main_t *bm, bfd_session_t *bs)
static void	bfd_recalc_echo_tx_interval (bfd_main_t *bm, bfd_session_t *bs)
static void	bfd_calc_next_tx (bfd_main_t *bm, bfd_session_t *bs, u64 now)
static void	bfd_calc_next_echo_tx (bfd_main_t *bm, bfd_session_t *bs, u64 now)
static void	bfd_recalc_detection_time (bfd_main_t *bm, bfd_session_t *bs)
static void	bfd_set_timer (bfd_main_t *bm, bfd_session_t *bs, u64 now, int handling_wakeup)
static void	bfd_set_effective_desired_min_tx (bfd_main_t *bm, bfd_session_t *bs, u64 now, u64 desired_min_tx_clocks)
static void	bfd_set_effective_required_min_rx (bfd_main_t *bm, bfd_session_t *bs, u64 required_min_rx_clocks)
static void	bfd_set_remote_required_min_rx (bfd_main_t *bm, bfd_session_t *bs, u64 now, u32 remote_required_min_rx_usec)
static void	bfd_set_remote_required_min_echo_rx (bfd_main_t *bm, bfd_session_t *bs, u64 now, u32 remote_required_min_echo_rx_usec)
static void	bfd_notify_listeners (bfd_main_t *bm, bfd_listen_event_e event, const bfd_session_t *bs)
void	bfd_session_start (bfd_main_t *bm, bfd_session_t *bs)
void	bfd_session_set_flags (bfd_session_t *bs, u8 admin_up_down)
u8 *	bfd_input_format_trace (u8 *s, va_list *args)
static void	bfd_rpc_event_cb (const bfd_rpc_event_t *a)
static void	bfd_event_rpc (u32 bs_idx)
static void	bfd_rpc_notify_listeners_cb (const bfd_rpc_notify_listeners_t *a)
static void	bfd_notify_listeners_rpc (u32 bs_idx)
static void	bfd_on_config_change (vlib_main_t *vm, vlib_node_runtime_t *rt, bfd_main_t *bm, bfd_session_t *bs, u64 now)
static void	bfd_add_transport_layer (vlib_main_t *vm, u32 bi, bfd_session_t *bs)
static int	bfd_transport_control_frame (vlib_main_t *vm, u32 bi, bfd_session_t *bs)
static int	bfd_echo_add_transport_layer (vlib_main_t *vm, u32 bi, bfd_session_t *bs)
static int	bfd_transport_echo (vlib_main_t *vm, u32 bi, bfd_session_t *bs)
static void	bfd_add_auth_section (vlib_buffer_t *b, bfd_session_t *bs)
static int	bfd_is_echo_possible (bfd_session_t *bs)
static void	bfd_init_control_frame (bfd_main_t *bm, bfd_session_t *bs, vlib_buffer_t *b)
static void	bfd_send_echo (vlib_main_t *vm, vlib_node_runtime_t *rt, bfd_main_t *bm, bfd_session_t *bs, u64 now)
static void	bfd_send_periodic (vlib_main_t *vm, vlib_node_runtime_t *rt, bfd_main_t *bm, bfd_session_t *bs, u64 now)
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)
static void	bfd_check_rx_timeout (bfd_main_t *bm, bfd_session_t *bs, u64 now, int handling_wakeup)
void	bfd_on_timeout (vlib_main_t *vm, vlib_node_runtime_t *rt, bfd_main_t *bm, bfd_session_t *bs, u64 now)
static uword	bfd_process (vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
static clib_error_t *	bfd_sw_interface_up_down (vnet_main_t *vnm, u32 sw_if_index, u32 flags)
	VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (bfd_sw_interface_up_down)
static clib_error_t *	bfd_hw_interface_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (bfd_hw_interface_up_down)
void	bfd_register_listener (bfd_notify_fn_t fn)
	Register a callback function to receive session notifications. More...
static clib_error_t *	bfd_main_init (vlib_main_t *vm)
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)
int	bfd_verify_pkt_common (const bfd_pkt_t *pkt)
	verify bfd packet - common checks More...
static void	bfd_session_switch_auth_to_next (bfd_session_t *bs)
static int	bfd_auth_type_is_meticulous (bfd_auth_type_e auth_type)
static int	bfd_verify_pkt_auth_seq_num (bfd_session_t *bs, u32 received_seq_num, int is_meticulous)
static int	bfd_verify_pkt_auth_key_sha1 (const bfd_pkt_t *pkt, u32 pkt_size, bfd_session_t *bs, u8 bfd_key_id, bfd_auth_key_t *auth_key)
static int	bfd_verify_pkt_auth_key (const bfd_pkt_t *pkt, u32 pkt_size, bfd_session_t *bs, u8 bfd_key_id, bfd_auth_key_t *auth_key)
int	bfd_verify_pkt_auth (const bfd_pkt_t *pkt, u16 pkt_size, bfd_session_t *bs)
	verify bfd packet - authentication More...
void	bfd_consume_pkt (bfd_main_t *bm, const bfd_pkt_t *pkt, u32 bs_idx)
int	bfd_consume_echo_pkt (bfd_main_t *bm, vlib_buffer_t *b)
u8 *	format_bfd_session (u8 *s, va_list *args)
u8 *	format_bfd_session_brief (u8 *s, va_list *args)
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)
vnet_api_error_t	bfd_auth_set_key (u32 conf_key_id, u8 auth_type, u8 key_len, const u8 *key_data)
	create or modify bfd authentication key More...
vnet_api_error_t	bfd_auth_del_key (u32 conf_key_id)
	delete existing authentication key More...

Variables
static vlib_node_registration_t	bfd_process_node
	(constructor) VLIB_REGISTER_NODE (bfd_process_node) More...
bfd_main_t	bfd_main

Detailed Description

BFD nodes implementation.

Definition in file bfd_main.c.

Macro Definition Documentation

F

#define F

(

x

)

Value:

case BFD_POLL_##x: \
    return "BFD_POLL_" #x;

Enumeration Type Documentation

bfd_input_next_t

enum bfd_input_next_t

Enumerator
BFD_INPUT_NEXT_NORMAL
BFD_INPUT_N_NEXT

Definition at line 90 of file bfd_main.c.

Function Documentation

bfd_add_auth_section()

static void bfd_add_auth_section ( vlib_buffer_t *  b, bfd_session_t *  bs  )

static

Definition at line 801 of file bfd_main.c.

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bfd_add_transport_layer()

static void bfd_add_transport_layer ( vlib_main_t *  vm, u32  bi, bfd_session_t *  bs  )

static

Definition at line 702 of file bfd_main.c.

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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 2022 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 2071 of file bfd_main.c.

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bfd_auth_del_key()

vnet_api_error_t bfd_auth_del_key

(

u32

conf_key_id

)

delete existing authentication key

Definition at line 2232 of file bfd_main.c.

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bfd_auth_set_key()

vnet_api_error_t bfd_auth_set_key	(	u32	conf_key_id,
		u8	auth_type,
		u8	key_len,
		const u8 *	key_data
	)

create or modify bfd authentication key

Definition at line 2176 of file bfd_main.c.

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bfd_auth_type_is_meticulous()

static int bfd_auth_type_is_meticulous ( bfd_auth_type_e  auth_type )

static

Definition at line 1500 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 2011 of file bfd_main.c.

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bfd_calc_echo_checksum()

static u64 bfd_calc_echo_checksum ( u32  discriminator, u64  expire_time, u32  secret  )

static

Definition at line 41 of file bfd_main.c.

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bfd_calc_next_echo_tx()

static void bfd_calc_next_echo_tx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now  )

static

Definition at line 241 of file bfd_main.c.

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bfd_calc_next_tx()

static void bfd_calc_next_tx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now  )

static

Definition at line 191 of file bfd_main.c.

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bfd_check_rx_timeout()

static void bfd_check_rx_timeout ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, int  handling_wakeup  )

static

Definition at line 1046 of file bfd_main.c.

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bfd_clocks_to_usec()

u32 bfd_clocks_to_usec	(	const bfd_main_t *	bm,
		u64	clocks
	)

Definition at line 61 of file bfd_main.c.

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bfd_consume_echo_pkt()

int bfd_consume_echo_pkt	(	bfd_main_t *	bm,
		vlib_buffer_t *	b
	)

Definition at line 1928 of file bfd_main.c.

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bfd_consume_pkt()

void bfd_consume_pkt	(	bfd_main_t *	bm,
		const bfd_pkt_t *	pkt,
		u32	bs_idx
	)

Definition at line 1794 of file bfd_main.c.

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bfd_echo_add_transport_layer()

static int bfd_echo_add_transport_layer ( vlib_main_t *  vm, u32  bi, bfd_session_t *  bs  )

static

Definition at line 735 of file bfd_main.c.

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bfd_event_rpc()

static void bfd_event_rpc ( u32  bs_idx )

static

Definition at line 574 of file bfd_main.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 1416 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 1405 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 1350 of file bfd_main.c.

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bfd_hw_interface_up_down()

static clib_error_t* bfd_hw_interface_up_down ( vnet_main_t *  vnm, u32  hw_if_index, u32  flags  )

static

Definition at line 1294 of file bfd_main.c.

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bfd_init_control_frame()

static void bfd_init_control_frame ( bfd_main_t *  bm, bfd_session_t *  bs, vlib_buffer_t *  b  )

static

Definition at line 857 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 1027 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 476 of file bfd_main.c.

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bfd_is_echo_possible()

static int bfd_is_echo_possible ( bfd_session_t *  bs )

static

Definition at line 840 of file bfd_main.c.

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bfd_main_init()

static clib_error_t* bfd_main_init ( vlib_main_t *  vm )

static

Definition at line 1318 of file bfd_main.c.

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bfd_notify_listeners()

static void bfd_notify_listeners ( bfd_main_t *  bm, bfd_listen_event_e  event, const bfd_session_t *  bs  )

static

Definition at line 424 of file bfd_main.c.

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bfd_notify_listeners_rpc()

static void bfd_notify_listeners_rpc ( u32  bs_idx )

static

Definition at line 609 of file bfd_main.c.

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bfd_on_config_change()

static void bfd_on_config_change ( vlib_main_t *  vm, vlib_node_runtime_t *  rt, bfd_main_t *  bm, bfd_session_t *  bs, u64  now  )

static

Definition at line 685 of file bfd_main.c.

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bfd_on_state_change()

static void bfd_on_state_change ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, int  handling_wakeup  )

static

Definition at line 619 of file bfd_main.c.

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bfd_on_timeout()

void bfd_on_timeout	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	rt,
		bfd_main_t *	bm,
		bfd_session_t *	bs,
		u64	now
	)

Definition at line 1093 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 147 of file bfd_main.c.

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bfd_process()

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

static

Definition at line 1138 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 1384 of file bfd_main.c.

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bfd_recalc_detection_time()

static void bfd_recalc_detection_time ( bfd_main_t *  bm, bfd_session_t *  bs  )

static

Definition at line 262 of file bfd_main.c.

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bfd_recalc_echo_tx_interval()

static void bfd_recalc_echo_tx_interval ( bfd_main_t *  bm, bfd_session_t *  bs  )

static

Definition at line 181 of file bfd_main.c.

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bfd_recalc_tx_interval()

static void bfd_recalc_tx_interval ( bfd_main_t *  bm, bfd_session_t *  bs  )

static

Definition at line 172 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 1307 of file bfd_main.c.

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bfd_rpc_event_cb()

static void bfd_rpc_event_cb ( const bfd_rpc_event_t *  a )

static

Definition at line 548 of file bfd_main.c.

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bfd_rpc_notify_listeners_cb()

static void bfd_rpc_notify_listeners_cb ( const bfd_rpc_notify_listeners_t *  a )

static

Definition at line 590 of file bfd_main.c.

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bfd_send_echo()

static void bfd_send_echo ( vlib_main_t *  vm, vlib_node_runtime_t *  rt, bfd_main_t *  bm, bfd_session_t *  bs, u64  now  )

static

Definition at line 888 of file bfd_main.c.

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bfd_send_periodic()

static void bfd_send_periodic ( vlib_main_t *  vm, vlib_node_runtime_t *  rt, bfd_main_t *  bm, bfd_session_t *  bs, u64  now  )

static

Definition at line 947 of file bfd_main.c.

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bfd_session_set_flags()

void bfd_session_set_flags	(	bfd_session_t *	bs,
		u8	admin_up_down
	)

Definition at line 449 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 2113 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 435 of file bfd_main.c.

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bfd_session_switch_auth_to_next()

static void bfd_session_switch_auth_to_next ( bfd_session_t *  bs )

static

Definition at line 1484 of file bfd_main.c.

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bfd_set_defaults()

static void bfd_set_defaults ( bfd_main_t *  bm, bfd_session_t *  bs  )

static

Definition at line 100 of file bfd_main.c.

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bfd_set_diag()

static void bfd_set_diag ( bfd_session_t *  bs, bfd_diag_code_e  code  )

static

Definition at line 122 of file bfd_main.c.

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bfd_set_effective_desired_min_tx()

static void bfd_set_effective_desired_min_tx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, u64  desired_min_tx_clocks  )

static

Definition at line 367 of file bfd_main.c.

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bfd_set_effective_required_min_rx()

static void bfd_set_effective_required_min_rx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  required_min_rx_clocks  )

static

Definition at line 381 of file bfd_main.c.

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bfd_set_poll_state()

static void bfd_set_poll_state ( bfd_session_t *  bs, bfd_poll_state_e  state  )

static

Definition at line 161 of file bfd_main.c.

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bfd_set_remote_required_min_echo_rx()

static void bfd_set_remote_required_min_echo_rx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, u32  remote_required_min_echo_rx_usec  )

static

Definition at line 408 of file bfd_main.c.

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bfd_set_remote_required_min_rx()

static void bfd_set_remote_required_min_rx ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, u32  remote_required_min_rx_usec  )

static

Definition at line 392 of file bfd_main.c.

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bfd_set_state()

static void bfd_set_state ( bfd_main_t *  bm, bfd_session_t *  bs, bfd_state_e  new_state, int  handling_wakeup  )

static

Definition at line 133 of file bfd_main.c.

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bfd_set_timer()

static void bfd_set_timer ( bfd_main_t *  bm, bfd_session_t *  bs, u64  now, int  handling_wakeup  )

static

Definition at line 277 of file bfd_main.c.

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bfd_sw_interface_up_down()

static clib_error_t* bfd_sw_interface_up_down ( vnet_main_t *  vnm, u32  sw_if_index, u32  flags  )

static

Definition at line 1280 of file bfd_main.c.

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bfd_transport_control_frame()

static int bfd_transport_control_frame ( vlib_main_t *  vm, u32  bi, bfd_session_t *  bs  )

static

Definition at line 718 of file bfd_main.c.

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bfd_transport_echo()

static int bfd_transport_echo ( vlib_main_t *  vm, u32  bi, bfd_session_t *  bs  )

static

Definition at line 752 of file bfd_main.c.

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bfd_usec_to_clocks()

static u64 bfd_usec_to_clocks ( const bfd_main_t *  bm, u64  us  )

static

Definition at line 55 of file bfd_main.c.

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bfd_verify_pkt_auth()

int bfd_verify_pkt_auth	(	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 1716 of file bfd_main.c.

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bfd_verify_pkt_auth_key()

static int bfd_verify_pkt_auth_key ( const bfd_pkt_t *  pkt, u32  pkt_size, bfd_session_t *  bs, u8  bfd_key_id, bfd_auth_key_t *  auth_key  )

static

Definition at line 1655 of file bfd_main.c.

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bfd_verify_pkt_auth_key_sha1()

static int bfd_verify_pkt_auth_key_sha1 ( const bfd_pkt_t *  pkt, u32  pkt_size, bfd_session_t *  bs, u8  bfd_key_id, bfd_auth_key_t *  auth_key  )

static

Definition at line 1579 of file bfd_main.c.

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bfd_verify_pkt_auth_seq_num()

static int bfd_verify_pkt_auth_seq_num ( bfd_session_t *  bs, u32  received_seq_num, int  is_meticulous  )

static

Definition at line 1511 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 1435 of file bfd_main.c.

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format_bfd_auth_key()

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

Definition at line 69 of file bfd_main.c.

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format_bfd_session()

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

Definition at line 1964 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 2000 of file bfd_main.c.

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VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION()

VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION

(

bfd_hw_interface_up_down

)

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VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION()

VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION

(

bfd_sw_interface_up_down

)

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Variable Documentation

bfd_main

bfd_main_t bfd_main

Definition at line 2271 of file bfd_main.c.

bfd_process_node

static vlib_node_registration_t bfd_process_node

static

Initial value:

= {
  .function = bfd_process,
  .type = VLIB_NODE_TYPE_PROCESS,
  .name = "bfd-process",
  .n_next_nodes = 0,
  .next_nodes = {},
}

(constructor) VLIB_REGISTER_NODE (bfd_process_node)

Definition at line 66 of file bfd_main.c.