ethernet.h File Reference

Include dependency graph for ethernet.h:

Go to the source code of this file.

Data Structures
struct	ethernet_input_frame_t
struct	ethernet_max_header_t
struct	ethernet_interface
struct	ethernet_type_info_t
struct	subint_config_t
struct	main_intf_t
struct	vlan_intf_t
struct	vlan_table_t
struct	qinq_intf_t
struct	qinq_table_t
struct	next_by_ethertype_t
struct	ethernet_main_t
struct	wc_arp_report_t

Macros
#define	ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX   (1 << 0)
#define	ETH_INPUT_FRAME_F_IP4_CKSUM_OK   (1 << 1)
#define	ETHERNET_MIN_PACKET_BYTES   64
#define	ETHERNET_MAX_PACKET_BYTES   9216
#define	ETHERNET_INTERFACE_FLAG_ACCEPT_ALL   (1 << 0)
#define	ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags)   (((flags) & ~ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) == 0)
#define	ETHERNET_INTERFACE_FLAG_MTU   (1 << 1)
#define	ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags)   ((flags) & ETHERNET_INTERFACE_FLAG_MTU)
#define	ethernet_error(n, c, s)   ETHERNET_ERROR_##n,
#define	SUBINT_CONFIG_MATCH_0_TAG   (1<<0)
#define	SUBINT_CONFIG_MATCH_1_TAG   (1<<1)
#define	SUBINT_CONFIG_MATCH_2_TAG   (1<<2)
#define	SUBINT_CONFIG_MATCH_3_TAG   (1<<3)
#define	SUBINT_CONFIG_VALID   (1<<4)
#define	SUBINT_CONFIG_L2   (1<<5)
#define	SUBINT_CONFIG_P2P   (1<<6)
#define	ethernet_buffer_get_vlan_count(b)
	Returns the number of VLAN headers in the current Ethernet frame in the buffer. More...
#define	ethernet_buffer_set_vlan_count(b, v)
	Sets the number of VLAN headers in the current Ethernet frame in the buffer. More...
#define	ethernet_buffer_adjust_vlan_count(b, v)
	Adjusts the vlan count by the delta in 'v'. More...
#define	ethernet_buffer_adjust_vlan_count_by_bytes(b, v)
	Adjusts the vlan count by the header size byte delta in 'v'. More...
#define	ethernet_buffer_header_size(b)
	Determine the size of the Ethernet headers of the current frame in the buffer. More...

Typedefs
typedef u32(	ethernet_flag_change_function_t) (vnet_main_t *vnm, struct vnet_hw_interface_t *hi, u32 flags)
typedef struct ethernet_interface	ethernet_interface_t

Enumerations
enum	ethernet_error_t { ETHERNET_N_ERROR }

Functions
static u64	ethernet_mac_address_u64 (const u8 *a)
static void	ethernet_mac_address_from_u64 (u64 u, u8 *a)
static int	ethernet_mac_address_is_multicast_u64 (u64 a)
static int	ethernet_mac_address_is_zero (const u8 *mac)
static_always_inline int	ethernet_frame_is_tagged (u16 type)
static_always_inline int	ethernet_frame_is_any_tagged_x2 (u16 type0, u16 type1)
static_always_inline int	ethernet_frame_is_any_tagged_x4 (u16 type0, u16 type1, u16 type2, u16 type3)
static u32	eth_create_valid_subint_match_flags (u32 num_tags)
static ethernet_type_info_t *	ethernet_get_type_info (ethernet_main_t *em, ethernet_type_t type)
ethernet_interface_t *	ethernet_get_interface (ethernet_main_t *em, u32 hw_if_index)
clib_error_t *	ethernet_register_interface (vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, u8 *address, u32 *hw_if_index_return, ethernet_flag_change_function_t flag_change)
void	ethernet_delete_interface (vnet_main_t *vnm, u32 hw_if_index)
void	ethernet_register_input_type (vlib_main_t *vm, ethernet_type_t type, u32 node_index)
void	ethernet_register_l2_input (vlib_main_t *vm, u32 node_index)
void	ethernet_register_l3_redirect (vlib_main_t *vm, u32 node_index)
u8 *	format_mac_address (u8 *s, va_list *args)
u8 *	format_ethernet_address (u8 *s, va_list *args)
u8 *	format_ethernet_type (u8 *s, va_list *args)
u8 *	format_ethernet_vlan_tci (u8 *s, va_list *va)
u8 *	format_ethernet_header (u8 *s, va_list *args)
u8 *	format_ethernet_header_with_length (u8 *s, va_list *args)
uword	unformat_ethernet_address (unformat_input_t *input, va_list *args)
uword	unformat_mac_address (unformat_input_t *input, va_list *args)
uword	unformat_ethernet_type_host_byte_order (unformat_input_t *input, va_list *args)
uword	unformat_ethernet_type_net_byte_order (unformat_input_t *input, va_list *args)
uword	unformat_ethernet_header (unformat_input_t *input, va_list *args)
uword	unformat_ethernet_interface (unformat_input_t *input, va_list *args)
uword	unformat_pg_ethernet_header (unformat_input_t *input, va_list *args)
static void	ethernet_setup_node (vlib_main_t *vm, u32 node_index)
static ethernet_header_t *	ethernet_buffer_get_header (vlib_buffer_t *b)
ethernet_main_t *	ethernet_get_main (vlib_main_t *vm)
u32	ethernet_set_flags (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
void	ethernet_sw_interface_set_l2_mode (vnet_main_t *vnm, u32 sw_if_index, u32 l2)
void	ethernet_sw_interface_set_l2_mode_noport (vnet_main_t *vnm, u32 sw_if_index, u32 l2)
void	ethernet_set_rx_redirect (vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 enable)
clib_error_t *	next_by_ethertype_init (next_by_ethertype_t *l3_next)
clib_error_t *	next_by_ethertype_register (next_by_ethertype_t *l3_next, u32 ethertype, u32 next_index)
int	vnet_create_loopback_interface (u32 *sw_if_indexp, u8 *mac_address, u8 is_specified, u32 user_instance)
int	vnet_delete_loopback_interface (u32 sw_if_index)
int	vnet_delete_sub_interface (u32 sw_if_index)
static void	eth_vlan_table_lookups (ethernet_main_t *em, vnet_main_t *vnm, u32 port_sw_if_index0, u16 first_ethertype, u16 outer_id, u16 inner_id, vnet_hw_interface_t **hi, main_intf_t **main_intf, vlan_intf_t **vlan_intf, qinq_intf_t **qinq_intf)
static u32	eth_identify_subint (vnet_hw_interface_t *hi, u32 match_flags, main_intf_t *main_intf, vlan_intf_t *vlan_intf, qinq_intf_t *qinq_intf, u32 *new_sw_if_index, u8 *error0, u32 *is_l2)
static u32	eth_mac_equal (const u8 *mac1, const u8 *mac2)
static ethernet_main_t *	vnet_get_ethernet_main (void)
void	vnet_register_ip4_arp_resolution_event (vnet_main_t *vnm, void *address_arg, uword node_index, uword type_opaque, uword data)
int	vnet_add_del_ip4_arp_change_event (vnet_main_t *vnm, void *data_callback, u32 pid, void *address_arg, uword node_index, uword type_opaque, uword data, int is_add)
void	wc_arp_set_publisher_node (uword inode_index, uword event_type)
void	ethernet_arp_change_mac (u32 sw_if_index)
void	ethernet_ndp_change_mac (u32 sw_if_index)
void	arp_update_adjacency (vnet_main_t *vnm, u32 sw_if_index, u32 ai)
void	ethernet_update_adjacency (vnet_main_t *vnm, u32 sw_if_index, u32 ai)
u8 *	ethernet_build_rewrite (vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
	build a rewrite string to use for sending packets of type 'link_type' to 'dst_address' More...
const u8 *	ethernet_ip4_mcast_dst_addr (void)
const u8 *	ethernet_ip6_mcast_dst_addr (void)

Variables
vnet_hw_interface_class_t	ethernet_hw_interface_class
ethernet_main_t	ethernet_main
vlib_node_registration_t	ethernet_input_node
	(constructor) VLIB_REGISTER_NODE (ethernet_input_node) More...

Macro Definition Documentation

#define ETH_INPUT_FRAME_F_IP4_CKSUM_OK   (1 << 1)

Definition at line 54 of file ethernet.h.

#define ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX   (1 << 0)

Definition at line 51 of file ethernet.h.

#define ethernet_buffer_adjust_vlan_count	(		b,
			v
	)

Value:

( \
  ethernet_buffer_set_vlan_count(b,  \
      (word)ethernet_buffer_get_vlan_count(b) + (word)(v)) \
)

Adjusts the vlan count by the delta in 'v'.

Definition at line 432 of file ethernet.h.

#define ethernet_buffer_adjust_vlan_count_by_bytes	(		b,
			v
	)

Value:

( \
    (b)->flags = ((b)->flags & ~VNET_BUFFER_FLAGS_VLAN_BITS) | (( \
        ((b)->flags & VNET_BUFFER_FLAGS_VLAN_BITS) + \
        ((v) << (VNET_BUFFER_F_LOG2_VLAN_1_DEEP - 2)) \
    ) & VNET_BUFFER_FLAGS_VLAN_BITS) \
)

Adjusts the vlan count by the header size byte delta in 'v'.

Definition at line 438 of file ethernet.h.

#define ethernet_buffer_get_vlan_count

(

b

)

Value:

( \
    ((b)->flags & VNET_BUFFER_FLAGS_VLAN_BITS) >> VNET_BUFFER_F_LOG2_VLAN_1_DEEP \
)

Returns the number of VLAN headers in the current Ethernet frame in the buffer.

Returns 0, 1, 2 for the known header count. The value 3 indicates the number of headers is not known.

Definition at line 418 of file ethernet.h.

#define ethernet_buffer_header_size

(

b

)

Value:

( \
        ethernet_buffer_get_vlan_count((b)) * sizeof(ethernet_vlan_header_t) + \
        sizeof(ethernet_header_t) \
)

Determine the size of the Ethernet headers of the current frame in the buffer.

This uses the VLAN depth flags that are set by ethernet-input. Because these flags are stored in the vlib_buffer_t "flags" field this count is valid regardless of the node so long as it's checked downstream of ethernet-input; That is, the value is not stored in the opaque space.

Definition at line 453 of file ethernet.h.

#define ethernet_buffer_set_vlan_count	(		b,
			v
	)

Value:

( \
    (b)->flags = ((b)->flags & ~VNET_BUFFER_FLAGS_VLAN_BITS) | \
        (((v) << VNET_BUFFER_F_LOG2_VLAN_1_DEEP) & VNET_BUFFER_FLAGS_VLAN_BITS) \
)

Sets the number of VLAN headers in the current Ethernet frame in the buffer.

Values 0, 1, 2 indicate the header count. The value 3 indicates the number of headers is not known.

Definition at line 426 of file ethernet.h.

#define ethernet_error	(		n,
			c,
			s
	)		ETHERNET_ERROR_##n,

Definition at line 211 of file ethernet.h.

#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL   (1 << 0)

Definition at line 174 of file ethernet.h.

#define ETHERNET_INTERFACE_FLAG_CONFIG_MTU

(

flags

)

((flags) & ETHERNET_INTERFACE_FLAG_MTU)

Definition at line 180 of file ethernet.h.

#define ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC

(

flags

)

(((flags) & ~ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) == 0)

Definition at line 175 of file ethernet.h.

#define ETHERNET_INTERFACE_FLAG_MTU   (1 << 1)

Definition at line 179 of file ethernet.h.

#define ETHERNET_MAX_PACKET_BYTES   9216

Definition at line 166 of file ethernet.h.

#define ETHERNET_MIN_PACKET_BYTES   64

Definition at line 165 of file ethernet.h.

#define SUBINT_CONFIG_L2   (1<<5)

Definition at line 232 of file ethernet.h.

#define SUBINT_CONFIG_MATCH_0_TAG   (1<<0)

Definition at line 227 of file ethernet.h.

#define SUBINT_CONFIG_MATCH_1_TAG   (1<<1)

Definition at line 228 of file ethernet.h.

#define SUBINT_CONFIG_MATCH_2_TAG   (1<<2)

Definition at line 229 of file ethernet.h.

#define SUBINT_CONFIG_MATCH_3_TAG   (1<<3)

Definition at line 230 of file ethernet.h.

#define SUBINT_CONFIG_P2P   (1<<6)

Definition at line 233 of file ethernet.h.

#define SUBINT_CONFIG_VALID   (1<<4)

Definition at line 231 of file ethernet.h.

Typedef Documentation

typedef u32( ethernet_flag_change_function_t) (vnet_main_t *vnm, struct vnet_hw_interface_t *hi, u32 flags)

Definition at line 163 of file ethernet.h.

typedef struct ethernet_interface ethernet_interface_t

Enumeration Type Documentation

enum ethernet_error_t

Enumerator
ETHERNET_N_ERROR

Definition at line 209 of file ethernet.h.

Function Documentation

void arp_update_adjacency	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		u32	ai
	)

Definition at line 447 of file arp.c.

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static u32 eth_create_valid_subint_match_flags ( u32  num_tags )

inlinestatic

Definition at line 238 of file ethernet.h.

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static u32 eth_identify_subint ( vnet_hw_interface_t *  hi, u32  match_flags, main_intf_t *  main_intf, vlan_intf_t *  vlan_intf, qinq_intf_t *  qinq_intf, u32 *  new_sw_if_index, u8 *  error0, u32 *  is_l2  )

inlinestatic

Definition at line 519 of file ethernet.h.

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static u32 eth_mac_equal ( const u8 *  mac1, const u8 *  mac2  )

inlinestatic

Definition at line 570 of file ethernet.h.

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static void eth_vlan_table_lookups ( ethernet_main_t *  em, vnet_main_t *  vnm, u32  port_sw_if_index0, u16  first_ethertype, u16  outer_id, u16  inner_id, vnet_hw_interface_t **  hi, main_intf_t **  main_intf, vlan_intf_t **  vlan_intf, qinq_intf_t **  qinq_intf  )

inlinestatic

Definition at line 480 of file ethernet.h.

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void ethernet_arp_change_mac

(

u32

sw_if_index

)

Definition at line 2534 of file arp.c.

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static ethernet_header_t* ethernet_buffer_get_header ( vlib_buffer_t *  b )

inlinestatic

Definition at line 409 of file ethernet.h.

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u8* ethernet_build_rewrite	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		vnet_link_t	link_type,
		const void *	dst_address
	)

build a rewrite string to use for sending packets of type 'link_type' to 'dst_address'

Definition at line 80 of file interface.c.

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void ethernet_delete_interface	(	vnet_main_t *	vnm,
		u32	hw_if_index
	)

Definition at line 323 of file interface.c.

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static_always_inline int ethernet_frame_is_any_tagged_x2	(	u16	type0,
		u16	type1
	)

Definition at line 125 of file ethernet.h.

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static_always_inline int ethernet_frame_is_any_tagged_x4	(	u16	type0,
		u16	type1,
		u16	type2,
		u16	type3
	)

Definition at line 137 of file ethernet.h.

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static_always_inline int ethernet_frame_is_tagged

(

u16

type

)

Definition at line 111 of file ethernet.h.

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ethernet_interface_t* ethernet_get_interface	(	ethernet_main_t *	em,
		u32	hw_if_index
	)

Definition at line 888 of file interface.c.

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ethernet_main_t* ethernet_get_main

(

vlib_main_t *

vm

)

Definition at line 117 of file init.c.

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static ethernet_type_info_t* ethernet_get_type_info ( ethernet_main_t *  em, ethernet_type_t  type  )

inlinestatic

Definition at line 338 of file ethernet.h.

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const u8* ethernet_ip4_mcast_dst_addr

(

void

)

Definition at line 56 of file interface.c.

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const u8* ethernet_ip6_mcast_dst_addr

(

void

)

Definition at line 66 of file interface.c.

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static void ethernet_mac_address_from_u64 ( u64  u, u8 *  a  )

inlinestatic

Definition at line 73 of file ethernet.h.

static int ethernet_mac_address_is_multicast_u64 ( u64  a )

inlinestatic

Definition at line 85 of file ethernet.h.

static int ethernet_mac_address_is_zero ( const u8 *  mac )

inlinestatic

Definition at line 91 of file ethernet.h.

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static u64 ethernet_mac_address_u64 ( const u8 *  a )

inlinestatic

Definition at line 63 of file ethernet.h.

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void ethernet_ndp_change_mac

(

u32

sw_if_index

)

Definition at line 4930 of file ip6_neighbor.c.

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void ethernet_register_input_type	(	vlib_main_t *	vm,
		ethernet_type_t	type,
		u32	node_index
	)

Definition at line 2036 of file node.c.

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clib_error_t* ethernet_register_interface	(	vnet_main_t *	vnm,
		u32	dev_class_index,
		u32	dev_instance,
		u8 *	address,
		u32 *	hw_if_index_return,
		ethernet_flag_change_function_t	flag_change
	)

Definition at line 277 of file interface.c.

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void ethernet_register_l2_input	(	vlib_main_t *	vm,
		u32	node_index
	)

Definition at line 2067 of file node.c.

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void ethernet_register_l3_redirect	(	vlib_main_t *	vm,
		u32	node_index
	)

Definition at line 2088 of file node.c.

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u32 ethernet_set_flags	(	vnet_main_t *	vnm,
		u32	hw_if_index,
		u32	flags
	)

Definition at line 371 of file interface.c.

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void ethernet_set_rx_redirect	(	vnet_main_t *	vnm,
		vnet_hw_interface_t *	hi,
		u32	enable
	)

Definition at line 1916 of file node.c.

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static void ethernet_setup_node ( vlib_main_t *  vm, u32  node_index  )

inlinestatic

Definition at line 398 of file ethernet.h.

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void ethernet_sw_interface_set_l2_mode	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		u32	l2
	)

Definition at line 1727 of file node.c.

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void ethernet_sw_interface_set_l2_mode_noport	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		u32	l2
	)

Definition at line 1776 of file node.c.

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void ethernet_update_adjacency	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		u32	ai
	)

Definition at line 195 of file interface.c.

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

Definition at line 44 of file format.c.

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

Definition at line 178 of file format.c.

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

Definition at line 97 of file format.c.

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

Definition at line 64 of file format.c.

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u8* format_ethernet_vlan_tci	(	u8 *	s,
		va_list *	va
	)

Definition at line 79 of file format.c.

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

Definition at line 58 of file format.c.

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clib_error_t* next_by_ethertype_init

(

next_by_ethertype_t *

l3_next

)

Definition at line 1931 of file node.c.

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clib_error_t* next_by_ethertype_register	(	next_by_ethertype_t *	l3_next,
		u32	ethertype,
		u32	next_index
	)

Definition at line 1961 of file node.c.

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uword unformat_ethernet_address	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 233 of file format.c.

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uword unformat_ethernet_header	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 290 of file format.c.

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uword unformat_ethernet_interface	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 256 of file interface.c.

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uword unformat_ethernet_type_host_byte_order	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 249 of file format.c.

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uword unformat_ethernet_type_net_byte_order	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 278 of file format.c.

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uword unformat_mac_address	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 241 of file format.c.

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uword unformat_pg_ethernet_header	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 82 of file pg.c.

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int vnet_add_del_ip4_arp_change_event	(	vnet_main_t *	vnm,
		void *	data_callback,
		u32	pid,
		void *	address_arg,
		uword	node_index,
		uword	type_opaque,
		uword	data,
		int	is_add
	)

Definition at line 809 of file arp.c.

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int vnet_create_loopback_interface	(	u32 *	sw_if_indexp,
		u8 *	mac_address,
		u8	is_specified,
		u32	user_instance
	)

Definition at line 737 of file interface.c.

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int vnet_delete_loopback_interface

(

u32

sw_if_index

)

Definition at line 898 of file interface.c.

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int vnet_delete_sub_interface

(

u32

sw_if_index

)

Definition at line 918 of file interface.c.

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static ethernet_main_t* vnet_get_ethernet_main ( void  )

inlinestatic

Definition at line 578 of file ethernet.h.

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void vnet_register_ip4_arp_resolution_event	(	vnet_main_t *	vnm,
		void *	address_arg,
		uword	node_index,
		uword	type_opaque,
		uword	data
	)

Definition at line 778 of file arp.c.

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void wc_arp_set_publisher_node	(	uword	inode_index,
		uword	event_type
	)

Definition at line 1611 of file arp.c.

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Variable Documentation

vnet_hw_interface_class_t ethernet_hw_interface_class

vlib_node_registration_t ethernet_input_node

Initial value:

= {
  .name = "ethernet-input",
  
  .vector_size = sizeof (u32),
  .scalar_size = sizeof (ethernet_input_frame_t),
  .n_errors = ETHERNET_N_ERROR,
  .error_strings = ethernet_error_strings,
  .n_next_nodes = ETHERNET_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_ethernet_input_next

  },
  .format_buffer = format_ethernet_header_with_length,
  .format_trace = format_ethernet_input_trace,
  .unformat_buffer = unformat_ethernet_header,
}

(constructor) VLIB_REGISTER_NODE (ethernet_input_node)

Definition at line 1871 of file node.c.

ethernet_main_t ethernet_main

Definition at line 45 of file init.c.