BFD nodes implementation. More...

Include dependency graph for bfd_main.c:

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_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)

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

#define F ( x )

Value:

case BFD_POLL_##x: \

return "BFD_POLL_" #x;

Enumeration Type Documentation

enum bfd_input_next_t

Enumerator
BFD_INPUT_NEXT_NORMAL
BFD_INPUT_N_NEXT

Definition at line 88 of file bfd_main.c.

Function Documentation

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

static

Definition at line 669 of file bfd_main.c.

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

static

Definition at line 570 of file bfd_main.c.

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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 1815 of file bfd_main.c.

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vnet_api_error_t bfd_auth_deactivate	(	bfd_session_t *	bs,
		u8	is_delayed
	)

Definition at line 1861 of file bfd_main.c.

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vnet_api_error_t bfd_auth_del_key ( u32 conf_key_id )

delete existing authentication key

Definition at line 2014 of file bfd_main.c.

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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 1960 of file bfd_main.c.

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static int bfd_auth_type_is_meticulous ( bfd_auth_type_e auth_type )

static

Definition at line 1312 of file bfd_main.c.

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unsigned bfd_auth_type_supported ( bfd_auth_type_e auth_type )

Definition at line 1804 of file bfd_main.c.

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

static

Definition at line 39 of file bfd_main.c.

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

static

Definition at line 239 of file bfd_main.c.

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

static

Definition at line 189 of file bfd_main.c.

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

static

Definition at line 913 of file bfd_main.c.

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u32 bfd_clocks_to_usec	(	const bfd_main_t *	bm,
		u64	clocks
	)

Definition at line 59 of file bfd_main.c.

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int bfd_consume_echo_pkt	(	bfd_main_t *	bm,
		vlib_buffer_t *	b
	)

Definition at line 1732 of file bfd_main.c.

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

Definition at line 1601 of file bfd_main.c.

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

static

Definition at line 603 of file bfd_main.c.

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bfd_session_t* bfd_find_session_by_disc	(	bfd_main_t *	bm,
		u32	disc
	)

Definition at line 1229 of file bfd_main.c.

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bfd_session_t* bfd_find_session_by_idx	(	bfd_main_t *	bm,
		uword	bs_idx
	)

Definition at line 1219 of file bfd_main.c.

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bfd_session_t* bfd_get_session	(	bfd_main_t *	bm,
		bfd_transport_e	t
	)

Definition at line 1175 of file bfd_main.c.

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

static

Definition at line 1126 of file bfd_main.c.

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

static

Definition at line 722 of file bfd_main.c.

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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 894 of file bfd_main.c.

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

Definition at line 438 of file bfd_main.c.

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static int bfd_is_echo_possible ( bfd_session_t * bs )

static

Definition at line 705 of file bfd_main.c.

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static clib_error_t* bfd_main_init ( vlib_main_t * vm )

static

Definition at line 1150 of file bfd_main.c.

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

static

Definition at line 392 of file bfd_main.c.

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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 553 of file bfd_main.c.

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

static

Definition at line 505 of file bfd_main.c.

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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 947 of file bfd_main.c.

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const char* bfd_poll_state_string ( bfd_poll_state_e state )

Definition at line 145 of file bfd_main.c.

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

static

Definition at line 992 of file bfd_main.c.

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void bfd_put_session	(	bfd_main_t *	bm,
		bfd_session_t *	bs
	)

Definition at line 1203 of file bfd_main.c.

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

static

Definition at line 260 of file bfd_main.c.

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

static

Definition at line 179 of file bfd_main.c.

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

static

Definition at line 170 of file bfd_main.c.

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void bfd_register_listener ( bfd_notify_fn_t fn )

Register a callback function to receive session notifications.

Definition at line 1139 of file bfd_main.c.

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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 753 of file bfd_main.c.

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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 813 of file bfd_main.c.

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void bfd_session_set_flags	(	bfd_session_t *	bs,
		u8	admin_up_down
	)

Definition at line 415 of file bfd_main.c.

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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 1899 of file bfd_main.c.

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void bfd_session_start	(	bfd_main_t *	bm,
		bfd_session_t *	bs
	)

Definition at line 403 of file bfd_main.c.

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static void bfd_session_switch_auth_to_next ( bfd_session_t * bs )

static

Definition at line 1296 of file bfd_main.c.

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

static

Definition at line 98 of file bfd_main.c.

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static void bfd_set_diag	(	bfd_session_t *	bs,
		bfd_diag_code_e	code
	)

static

Definition at line 120 of file bfd_main.c.

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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 335 of file bfd_main.c.

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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 349 of file bfd_main.c.

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static void bfd_set_poll_state	(	bfd_session_t *	bs,
		bfd_poll_state_e	state
	)

static

Definition at line 159 of file bfd_main.c.

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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 376 of file bfd_main.c.

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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 360 of file bfd_main.c.

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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 131 of file bfd_main.c.

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

static

Definition at line 275 of file bfd_main.c.

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

static

Definition at line 1112 of file bfd_main.c.

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

static

Definition at line 586 of file bfd_main.c.

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

static

Definition at line 620 of file bfd_main.c.

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

static

Definition at line 53 of file bfd_main.c.

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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 1523 of file bfd_main.c.

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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 1467 of file bfd_main.c.

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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 1391 of file bfd_main.c.

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

static

Definition at line 1323 of file bfd_main.c.

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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 1247 of file bfd_main.c.

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

Definition at line 67 of file bfd_main.c.

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

Definition at line 1768 of file bfd_main.c.

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VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION ( bfd_hw_interface_up_down )

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VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION ( bfd_sw_interface_up_down )

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Variable Documentation

bfd_main_t bfd_main

Definition at line 2050 of file bfd_main.c.

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 64 of file bfd_main.c.

Macros

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Variables

Detailed Description

Macro Definition Documentation

Enumeration Type Documentation

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Variable Documentation