arp.c File Reference

IPv4 ARP. More...

Include dependency graph for arp.c:

Go to the source code of this file.

Data Structures
struct	ethernet_arp_interface_t_
	Per-interface ARP configuration and state. More...
struct	ethernet_proxy_arp_t
struct	pending_resolution_t
struct	ethernet_arp_main_t
struct	vnet_arp_set_ip4_over_ethernet_rpc_args_t
struct	ethernet_arp_input_trace_t
struct	pg_ethernet_arp_header_t

Macros
#define	ETHERNET_ARP_ARGS_REMOVE   (1<<0)
#define	ETHERNET_ARP_ARGS_FLUSH   (1<<1)
#define	ETHERNET_ARP_ARGS_POPULATE   (1<<2)
#define	ETHERNET_ARP_ARGS_WC_PUB   (1<<3)
#define	foreach_ethernet_arp_error
#define	foreach_arp_disabled_error   _ (DISABLED, "ARP Disabled on this interface") \

Typedefs
typedef struct ethernet_arp_interface_t_	ethernet_arp_interface_t
	Per-interface ARP configuration and state. More...
typedef enum arp_input_next_t_	arp_input_next_t
typedef enum arp_disabled_next_t_	arp_disabled_next_t

Enumerations
enum	arp_reply_next_t { ARP_REPLY_NEXT_DROP, ARP_REPLY_NEXT_REPLY_TX, ARP_REPLY_N_NEXT }
enum	ethernet_arp_reply_error_t { ETHERNET_ARP_N_ERROR }
enum	arp_input_next_t_ { ARP_INPUT_NEXT_DROP, ARP_INPUT_NEXT_DISABLED, ARP_INPUT_N_NEXT }
enum	arp_disabled_next_t_ { ARP_DISABLED_NEXT_DROP, ARP_DISABLED_N_NEXT }
enum	arp_disabled_error_t { ARP_DISABLED_N_ERROR }
enum	arp_dst_fib_type { ARP_DST_FIB_NONE, ARP_DST_FIB_ADJ, ARP_DST_FIB_CONN }
enum	arp_term_next_t { ARP_TERM_NEXT_L2_OUTPUT, ARP_TERM_NEXT_DROP, ARP_TERM_N_NEXT }

Functions
static void	set_ip4_over_ethernet_rpc_callback (vnet_arp_set_ip4_over_ethernet_rpc_args_t *a)
static u8 *	format_ethernet_arp_hardware_type (u8 *s, va_list *va)
static u8 *	format_ethernet_arp_opcode (u8 *s, va_list *va)
static uword	unformat_ethernet_arp_opcode_host_byte_order (unformat_input_t *input, va_list *args)
static uword	unformat_ethernet_arp_opcode_net_byte_order (unformat_input_t *input, va_list *args)
static u8 *	format_ethernet_arp_header (u8 *s, va_list *va)
u8 *	format_ethernet_arp_ip4_entry (u8 *s, va_list *va)
static u8 *	format_ethernet_arp_input_trace (u8 *s, va_list *va)
static u8 *	format_arp_term_input_trace (u8 *s, va_list *va)
static void	arp_nbr_probe (ip_adjacency_t *adj)
static void	arp_mk_complete (adj_index_t ai, ethernet_arp_ip4_entry_t *e)
static void	arp_mk_incomplete (adj_index_t ai)
static ethernet_arp_ip4_entry_t *	arp_entry_find (ethernet_arp_interface_t *eai, const ip4_address_t *addr)
static adj_walk_rc_t	arp_mk_complete_walk (adj_index_t ai, void *ctx)
static adj_walk_rc_t	arp_mk_incomplete_walk (adj_index_t ai, void *ctx)
static int	arp_is_enabled (ethernet_arp_main_t *am, u32 sw_if_index)
static void	arp_enable (ethernet_arp_main_t *am, u32 sw_if_index)
static int	vnet_arp_flush_ip4_over_ethernet_internal (vnet_main_t *vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *args)
static void	arp_disable (ethernet_arp_main_t *am, u32 sw_if_index)
void	arp_update_adjacency (vnet_main_t *vnm, u32 sw_if_index, u32 ai)
static void	arp_adj_fib_add (ethernet_arp_ip4_entry_t *e, u32 fib_index)
static void	arp_adj_fib_remove (ethernet_arp_ip4_entry_t *e, u32 fib_index)
static ethernet_arp_ip4_entry_t *	force_reuse_arp_entry (void)
static int	vnet_arp_set_ip4_over_ethernet_internal (vnet_main_t *vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *args)
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, arp_change_event_cb_t data_callback, u32 pid, void *address_arg, uword node_index, uword type_opaque, uword data, int is_add)
static int	arp_unnumbered (vlib_buffer_t *p0, u32 input_sw_if_index, u32 conn_sw_if_index)
static u32	arp_learn (vnet_main_t *vnm, ethernet_arp_main_t *am, u32 sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *addr)
static uword	arp_input (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	arp_disabled (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static_always_inline u32	arp_mk_reply (vnet_main_t *vnm, vlib_buffer_t *p0, u32 sw_if_index0, const ip4_address_t *if_addr0, ethernet_arp_header_t *arp0, ethernet_header_t *eth_rx)
static enum arp_dst_fib_type	arp_dst_fib_check (const fib_node_index_t fei, fib_entry_flag_t *flags)
static uword	arp_reply (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	arp_proxy (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VNET_FEATURE_ARC_INIT (arp_feat, static)
	VNET_FEATURE_INIT (arp_reply_feat_node, static)
	VNET_FEATURE_INIT (arp_proxy_feat_node, static)
	VNET_FEATURE_INIT (arp_disabled_feat_node, static)
	VNET_FEATURE_INIT (arp_drop_feat_node, static)
static int	ip4_arp_entry_sort (void *a1, void *a2)
ethernet_arp_ip4_entry_t *	ip4_neighbors_pool (void)
ethernet_arp_ip4_entry_t *	ip4_neighbor_entries (u32 sw_if_index)
static clib_error_t *	show_ip4_arp (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static void	pg_ethernet_arp_header_init (pg_ethernet_arp_header_t *p)
uword	unformat_pg_arp_header (unformat_input_t *input, va_list *args)
clib_error_t *	ip4_set_arp_limit (u32 arp_limit)
int	vnet_arp_unset_ip4_over_ethernet (vnet_main_t *vnm, u32 sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *a)
	Control Plane hook to remove an ARP entry. More...
static int	vnet_arp_wc_publish (u32 sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *a)
	publish wildcard arp event More...
static void	vnet_arp_wc_publish_internal (vnet_main_t *vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *args)
void	wc_arp_set_publisher_node (uword node_index, uword event_type)
static void	arp_entry_free (ethernet_arp_interface_t *eai, ethernet_arp_ip4_entry_t *e)
static void	arp_enable_disable_interface (ip4_main_t *im, uword opaque, u32 sw_if_index, u32 is_enable)
static void	arp_add_del_interface_address (ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 if_address_index, u32 is_del)
static void	arp_table_bind (ip4_main_t *im, uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
static clib_error_t *	ethernet_arp_init (vlib_main_t *vm)
static int	vnet_arp_unset_ip4_over_ethernet_internal (vnet_main_t *vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *args)
static int	vnet_arp_populate_ip4_over_ethernet_internal (vnet_main_t *vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *args)
static clib_error_t *	ethernet_arp_sw_interface_up_down (vnet_main_t *vnm, u32 sw_if_index, u32 flags)
	Invoked when the interface's admin state changes. More...
	VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ethernet_arp_sw_interface_up_down)
static void	increment_ip4_and_mac_address (ethernet_arp_ip4_over_ethernet_address_t *a)
int	vnet_arp_set_ip4_over_ethernet (vnet_main_t *vnm, u32 sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *a, ip_neighbor_flags_t flags)
void	proxy_arp_walk (proxy_arp_walk_t cb, void *data)
int	vnet_proxy_arp_enable_disable (vnet_main_t *vnm, u32 sw_if_index, u8 enable)
int	vnet_proxy_arp_add_del (ip4_address_t *lo_addr, ip4_address_t *hi_addr, u32 fib_index, int is_del)
void	proxy_arp_intfc_walk (proxy_arp_intf_walk_t cb, void *data)
int	vnet_proxy_arp_fib_reset (u32 fib_id)
static clib_error_t *	ip_arp_add_del_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	set_int_proxy_arp_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static uword	arp_term_l2bd (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
clib_error_t *	arp_term_init (vlib_main_t *vm)
void	change_arp_mac (u32 sw_if_index, ethernet_arp_ip4_entry_t *e)
void	ethernet_arp_change_mac (u32 sw_if_index)
void	send_ip4_garp (vlib_main_t *vm, u32 sw_if_index)
void	send_ip4_garp_w_addr (vlib_main_t *vm, const ip4_address_t *ip4_addr, u32 sw_if_index)
static clib_error_t *	vnet_arp_delete_sw_interface (vnet_main_t *vnm, u32 sw_if_index, u32 is_add)
	VNET_SW_INTERFACE_ADD_DEL_FUNCTION (vnet_arp_delete_sw_interface)

Variables
static ethernet_arp_main_t	ethernet_arp_main
static const u8	vrrp_prefix [] = { 0x00, 0x00, 0x5E, 0x00, 0x01 }
u32	send_garp_na_process_node_index
static char *	arp_disabled_error_strings []
static char *	ethernet_arp_error_strings []
static vlib_node_registration_t	arp_input_node
	(constructor) VLIB_REGISTER_NODE (arp_input_node) More...
static vlib_node_registration_t	arp_disabled_node
	(constructor) VLIB_REGISTER_NODE (arp_disabled_node) More...
static vlib_node_registration_t	arp_reply_node
	(constructor) VLIB_REGISTER_NODE (arp_reply_node) More...
static vlib_node_registration_t	arp_proxy_node
	(constructor) VLIB_REGISTER_NODE (arp_proxy_node) More...
static vlib_cli_command_t	show_ip4_arp_command
	(constructor) VLIB_CLI_COMMAND (show_ip4_arp_command) More...
static vlib_cli_command_t	ip_arp_add_del_command
	(constructor) VLIB_CLI_COMMAND (ip_arp_add_del_command) More...
static vlib_cli_command_t	set_int_proxy_enable_command
	(constructor) VLIB_CLI_COMMAND (set_int_proxy_enable_command) More...
u32	arp_term_next_node_index [32]
static vlib_node_registration_t	arp_term_l2bd_node
	(constructor) VLIB_REGISTER_NODE (arp_term_l2bd_node) More...

Detailed Description

IPv4 ARP.

This file contains code to manage the IPv4 ARP tables (IP Address to MAC Address lookup).

Definition in file arp.c.

Macro Definition Documentation

#define ETHERNET_ARP_ARGS_FLUSH   (1<<1)

Definition at line 123 of file arp.c.

#define ETHERNET_ARP_ARGS_POPULATE   (1<<2)

Definition at line 124 of file arp.c.

#define ETHERNET_ARP_ARGS_REMOVE   (1<<0)

Definition at line 122 of file arp.c.

#define ETHERNET_ARP_ARGS_WC_PUB   (1<<3)

Definition at line 125 of file arp.c.

#define foreach_arp_disabled_error   _ (DISABLED, "ARP Disabled on this interface") \

Definition at line 1095 of file arp.c.

#define foreach_ethernet_arp_error

Value:

_ (replies_sent, "ARP replies sent")                                    \
  _ (l2_type_not_ethernet, "L2 type not ethernet")                      \
  _ (l3_type_not_ip4, "L3 type not IP4")                                \
  _ (l3_src_address_not_local, "IP4 source address not local to subnet") \
  _ (l3_dst_address_not_local, "IP4 destination address not local to subnet") \
  _ (l3_dst_address_unset, "IP4 destination address is unset")          \
  _ (l3_src_address_is_local, "IP4 source address matches local interface") \
  _ (l3_src_address_learned, "ARP request IP4 source address learned")  \
  _ (replies_received, "ARP replies received")                          \
  _ (opcode_not_request, "ARP opcode not request")                      \
  _ (proxy_arp_replies_sent, "Proxy ARP replies sent")                  \
  _ (l2_address_mismatch, "ARP hw addr does not match L2 frame src addr") \
  _ (gratuitous_arp, "ARP probe or announcement dropped") \
  _ (interface_no_table, "Interface is not mapped to an IP table") \
  _ (interface_not_ip_enabled, "Interface is not IP enabled") \
  _ (unnumbered_mismatch, "RX interface is unnumbered to different subnet") \

Definition at line 952 of file arp.c.

Typedef Documentation

typedef enum arp_disabled_next_t_ arp_disabled_next_t

typedef enum arp_input_next_t_ arp_input_next_t

typedef struct ethernet_arp_interface_t_ ethernet_arp_interface_t

Per-interface ARP configuration and state.

Enumeration Type Documentation

enum arp_disabled_error_t

Enumerator
ARP_DISABLED_N_ERROR

Definition at line 1098 of file arp.c.

enum arp_disabled_next_t_

Enumerator
ARP_DISABLED_NEXT_DROP
ARP_DISABLED_N_NEXT

Definition at line 1089 of file arp.c.

enum arp_dst_fib_type

Enumerator
ARP_DST_FIB_NONE
ARP_DST_FIB_ADJ
ARP_DST_FIB_CONN

Definition at line 1211 of file arp.c.

enum arp_input_next_t_

Enumerator
ARP_INPUT_NEXT_DROP
ARP_INPUT_NEXT_DISABLED
ARP_INPUT_N_NEXT

Definition at line 1012 of file arp.c.

enum arp_reply_next_t

Enumerator
ARP_REPLY_NEXT_DROP
ARP_REPLY_NEXT_REPLY_TX
ARP_REPLY_N_NEXT

Definition at line 945 of file arp.c.

enum arp_term_next_t

Enumerator
ARP_TERM_NEXT_L2_OUTPUT
ARP_TERM_NEXT_DROP
ARP_TERM_N_NEXT

Definition at line 2716 of file arp.c.

enum ethernet_arp_reply_error_t

Enumerator
ETHERNET_ARP_N_ERROR

Definition at line 970 of file arp.c.

Function Documentation

static void arp_add_del_interface_address ( ip4_main_t *  im, uword  opaque, u32  sw_if_index, ip4_address_t *  address, u32  address_length, u32  if_address_index, u32  is_del  )

static

Definition at line 2062 of file arp.c.

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static void arp_adj_fib_add ( ethernet_arp_ip4_entry_t *  e, u32  fib_index  )

static

Definition at line 616 of file arp.c.

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static void arp_adj_fib_remove ( ethernet_arp_ip4_entry_t *  e, u32  fib_index  )

static

Definition at line 634 of file arp.c.

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static void arp_disable ( ethernet_arp_main_t *  am, u32  sw_if_index  )

static

Definition at line 473 of file arp.c.

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static uword arp_disabled ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1113 of file arp.c.

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static enum arp_dst_fib_type arp_dst_fib_check ( const fib_node_index_t  fei, fib_entry_flag_t *  flags  )

static

Definition at line 1224 of file arp.c.

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static void arp_enable ( ethernet_arp_main_t *  am, u32  sw_if_index  )

static

Definition at line 453 of file arp.c.

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static void arp_enable_disable_interface ( ip4_main_t *  im, uword  opaque, u32  sw_if_index, u32  is_enable  )

static

Definition at line 2045 of file arp.c.

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static ethernet_arp_ip4_entry_t* arp_entry_find ( ethernet_arp_interface_t *  eai, const ip4_address_t *  addr  )

static

Definition at line 407 of file arp.c.

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static void arp_entry_free ( ethernet_arp_interface_t *  eai, ethernet_arp_ip4_entry_t *  e  )

static

Definition at line 2216 of file arp.c.

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static uword arp_input ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1020 of file arp.c.

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static int arp_is_enabled ( ethernet_arp_main_t *  am, u32  sw_if_index  )

static

Definition at line 444 of file arp.c.

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static u32 arp_learn ( vnet_main_t *  vnm, ethernet_arp_main_t *  am, u32  sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *  addr  )

static

Definition at line 1004 of file arp.c.

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static void arp_mk_complete ( adj_index_t  ai, ethernet_arp_ip4_entry_t *  e  )

static

Definition at line 383 of file arp.c.

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static adj_walk_rc_t arp_mk_complete_walk ( adj_index_t  ai, void *  ctx  )

static

Definition at line 426 of file arp.c.

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static void arp_mk_incomplete ( adj_index_t  ai )

static

Definition at line 393 of file arp.c.

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static adj_walk_rc_t arp_mk_incomplete_walk ( adj_index_t  ai, void *  ctx  )

static

Definition at line 436 of file arp.c.

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static_always_inline u32 arp_mk_reply	(	vnet_main_t *	vnm,
		vlib_buffer_t *	p0,
		u32	sw_if_index0,
		const ip4_address_t *	if_addr0,
		ethernet_arp_header_t *	arp0,
		ethernet_header_t *	eth_rx
	)

Definition at line 1160 of file arp.c.

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static void arp_nbr_probe ( ip_adjacency_t *  adj )

static

Definition at line 319 of file arp.c.

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static uword arp_proxy ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1535 of file arp.c.

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static uword arp_reply ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1244 of file arp.c.

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static void arp_table_bind ( ip4_main_t *  im, uword  opaque, u32  sw_if_index, u32  new_fib_index, u32  old_fib_index  )

static

Definition at line 2120 of file arp.c.

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clib_error_t* arp_term_init

(

vlib_main_t *

vm

)

Definition at line 2953 of file arp.c.

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static uword arp_term_l2bd ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 2726 of file arp.c.

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static int arp_unnumbered ( vlib_buffer_t *  p0, u32  input_sw_if_index, u32  conn_sw_if_index  )

static

Definition at line 979 of file arp.c.

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

Definition at line 519 of file arp.c.

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void change_arp_mac	(	u32	sw_if_index,
		ethernet_arp_ip4_entry_t *	e
	)

Definition at line 2967 of file arp.c.

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void ethernet_arp_change_mac

(

u32

sw_if_index

)

Definition at line 2977 of file arp.c.

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static clib_error_t* ethernet_arp_init ( vlib_main_t *  vm )

static

Definition at line 2155 of file arp.c.

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

static

Invoked when the interface's admin state changes.

Definition at line 2298 of file arp.c.

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static ethernet_arp_ip4_entry_t* force_reuse_arp_entry ( void  )

static

Definition at line 658 of file arp.c.

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static u8* format_arp_term_input_trace ( u8 *  s, va_list *  va  )

static

Definition at line 302 of file arp.c.

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static u8* format_ethernet_arp_hardware_type ( u8 *  s, va_list *  va  )

static

Definition at line 138 of file arp.c.

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static u8* format_ethernet_arp_header ( u8 *  s, va_list *  va  )

static

Definition at line 215 of file arp.c.

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static u8* format_ethernet_arp_input_trace ( u8 *  s, va_list *  va  )

static

Definition at line 288 of file arp.c.

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u8* format_ethernet_arp_ip4_entry	(	u8 *	s,
		va_list *	va
	)

Definition at line 262 of file arp.c.

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static u8* format_ethernet_arp_opcode ( u8 *  s, va_list *  va  )

static

Definition at line 156 of file arp.c.

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static void increment_ip4_and_mac_address ( ethernet_arp_ip4_over_ethernet_address_t *  a )

static

Definition at line 2343 of file arp.c.

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static int ip4_arp_entry_sort ( void *  a1, void *  a2  )

static

Definition at line 1750 of file arp.c.

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ethernet_arp_ip4_entry_t* ip4_neighbor_entries

(

u32

sw_if_index

)

Definition at line 1772 of file arp.c.

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ethernet_arp_ip4_entry_t* ip4_neighbors_pool

(

void

)

Definition at line 1765 of file arp.c.

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clib_error_t* ip4_set_arp_limit

(

u32

arp_limit

)

Definition at line 1919 of file arp.c.

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static clib_error_t* ip_arp_add_del_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 2515 of file arp.c.

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static void pg_ethernet_arp_header_init ( pg_ethernet_arp_header_t *  p )

inlinestatic

Definition at line 1866 of file arp.c.

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void proxy_arp_intfc_walk	(	proxy_arp_intf_walk_t	cb,
		void *	data
	)

Definition at line 2467 of file arp.c.

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void proxy_arp_walk	(	proxy_arp_walk_t	cb,
		void *	data
	)

Definition at line 2385 of file arp.c.

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void send_ip4_garp	(	vlib_main_t *	vm,
		u32	sw_if_index
	)

Definition at line 2997 of file arp.c.

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void send_ip4_garp_w_addr	(	vlib_main_t *	vm,
		const ip4_address_t *	ip4_addr,
		u32	sw_if_index
	)

Definition at line 3006 of file arp.c.

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static clib_error_t* set_int_proxy_arp_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 2651 of file arp.c.

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static void set_ip4_over_ethernet_rpc_callback ( vnet_arp_set_ip4_over_ethernet_rpc_args_t *  a )

static

Definition at line 2276 of file arp.c.

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static clib_error_t* show_ip4_arp ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 1791 of file arp.c.

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static uword unformat_ethernet_arp_opcode_host_byte_order ( unformat_input_t *  input, va_list *  args  )

static

Definition at line 174 of file arp.c.

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static uword unformat_ethernet_arp_opcode_net_byte_order ( unformat_input_t *  input, va_list *  args  )

static

Definition at line 202 of file arp.c.

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uword unformat_pg_arp_header	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 1883 of file arp.c.

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

Definition at line 874 of file arp.c.

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static clib_error_t* vnet_arp_delete_sw_interface ( vnet_main_t *  vnm, u32  sw_if_index, u32  is_add  )

static

Definition at line 3060 of file arp.c.

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static int vnet_arp_flush_ip4_over_ethernet_internal ( vnet_main_t *  vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *  args  )

static

Definition at line 2000 of file arp.c.

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static int vnet_arp_populate_ip4_over_ethernet_internal ( vnet_main_t *  vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *  args  )

static

Definition at line 2254 of file arp.c.

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int vnet_arp_set_ip4_over_ethernet	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		const ethernet_arp_ip4_over_ethernet_address_t *	a,
		ip_neighbor_flags_t	flags
	)

Definition at line 2366 of file arp.c.

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static int vnet_arp_set_ip4_over_ethernet_internal ( vnet_main_t *  vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *  args  )

static

Definition at line 690 of file arp.c.

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int vnet_arp_unset_ip4_over_ethernet	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		const ethernet_arp_ip4_over_ethernet_address_t *	a
	)

Control Plane hook to remove an ARP entry.

Definition at line 1931 of file arp.c.

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static int vnet_arp_unset_ip4_over_ethernet_internal ( vnet_main_t *  vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *  args  )

inlinestatic

Definition at line 2227 of file arp.c.

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static int vnet_arp_wc_publish ( u32  sw_if_index, const ethernet_arp_ip4_over_ethernet_address_t *  a  )

static

publish wildcard arp event

Parameters

sw_if_index

The interface on which the ARP entries are acted

Definition at line 1954 of file arp.c.

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static void vnet_arp_wc_publish_internal ( vnet_main_t *  vnm, vnet_arp_set_ip4_over_ethernet_rpc_args_t *  args  )

static

Definition at line 1970 of file arp.c.

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VNET_FEATURE_ARC_INIT	(	arp_feat	,
		static
	)

VNET_FEATURE_INIT	(	arp_reply_feat_node	,
		static
	)

VNET_FEATURE_INIT	(	arp_proxy_feat_node	,
		static
	)

VNET_FEATURE_INIT	(	arp_disabled_feat_node	,
		static
	)

VNET_FEATURE_INIT	(	arp_drop_feat_node	,
		static
	)

int vnet_proxy_arp_add_del	(	ip4_address_t *	lo_addr,
		ip4_address_t *	hi_addr,
		u32	fib_index,
		int	is_del
	)

Definition at line 2430 of file arp.c.

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int vnet_proxy_arp_enable_disable	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		u8	enable
	)

Definition at line 2398 of file arp.c.

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int vnet_proxy_arp_fib_reset

(

u32

fib_id

)

Definition at line 2484 of file arp.c.

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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 843 of file arp.c.

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VNET_SW_INTERFACE_ADD_DEL_FUNCTION

(

vnet_arp_delete_sw_interface

)

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VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION

(

ethernet_arp_sw_interface_up_down

)

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void wc_arp_set_publisher_node	(	uword	node_index,
		uword	event_type
	)

Definition at line 1989 of file arp.c.

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Variable Documentation

char* arp_disabled_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_arp_disabled_error

}

Definition at line 1106 of file arp.c.

vlib_node_registration_t arp_disabled_node

static

Initial value:

=
{
  .function = arp_disabled,
  .name = "arp-disabled",
  .vector_size = sizeof (u32),
  .n_errors = ARP_DISABLED_N_ERROR,
  .error_strings = arp_disabled_error_strings,
  .n_next_nodes = ARP_DISABLED_N_NEXT,
  .next_nodes = {
    [ARP_INPUT_NEXT_DROP] = "error-drop",
  },
  .format_buffer = format_ethernet_arp_header,
  .format_trace = format_ethernet_arp_input_trace,
}

(constructor) VLIB_REGISTER_NODE (arp_disabled_node)

Definition at line 1662 of file arp.c.

vlib_node_registration_t arp_input_node

static

Initial value:

=
{
  .function = arp_input,
  .name = "arp-input",
  .vector_size = sizeof (u32),
  .n_errors = ETHERNET_ARP_N_ERROR,
  .error_strings = ethernet_arp_error_strings,
  .n_next_nodes = ARP_INPUT_N_NEXT,
  .next_nodes = {
    [ARP_INPUT_NEXT_DROP] = "error-drop",
    [ARP_INPUT_NEXT_DISABLED] = "arp-disabled",
  },
  .format_buffer = format_ethernet_arp_header,
  .format_trace = format_ethernet_arp_input_trace,
}

(constructor) VLIB_REGISTER_NODE (arp_input_node)

Definition at line 1646 of file arp.c.

vlib_node_registration_t arp_proxy_node

static

Initial value:

=
{
  .function = arp_proxy,
  .name = "arp-proxy",
  .vector_size = sizeof (u32),
  .n_errors = ETHERNET_ARP_N_ERROR,
  .error_strings = ethernet_arp_error_strings,
  .n_next_nodes = ARP_REPLY_N_NEXT,
  .next_nodes = {
    [ARP_REPLY_NEXT_DROP] = "error-drop",
    [ARP_REPLY_NEXT_REPLY_TX] = "interface-output",
  },
  .format_buffer = format_ethernet_arp_header,
  .format_trace = format_ethernet_arp_input_trace,
}

(constructor) VLIB_REGISTER_NODE (arp_proxy_node)

Definition at line 1693 of file arp.c.

vlib_node_registration_t arp_reply_node

static

Initial value:

=
{
  .function = arp_reply,
  .name = "arp-reply",
  .vector_size = sizeof (u32),
  .n_errors = ETHERNET_ARP_N_ERROR,
  .error_strings = ethernet_arp_error_strings,
  .n_next_nodes = ARP_REPLY_N_NEXT,
  .next_nodes = {
    [ARP_REPLY_NEXT_DROP] = "error-drop",
    [ARP_REPLY_NEXT_REPLY_TX] = "interface-output",
  },
  .format_buffer = format_ethernet_arp_header,
  .format_trace = format_ethernet_arp_input_trace,
}

(constructor) VLIB_REGISTER_NODE (arp_reply_node)

Definition at line 1677 of file arp.c.

vlib_node_registration_t arp_term_l2bd_node

static

Initial value:

= {
  .function = arp_term_l2bd,
  .name = "arp-term-l2bd",
  .vector_size = sizeof (u32),
  .n_errors = ETHERNET_ARP_N_ERROR,
  .error_strings = ethernet_arp_error_strings,
  .n_next_nodes = ARP_TERM_N_NEXT,
  .next_nodes = {
    [ARP_TERM_NEXT_L2_OUTPUT] = "l2-output",
    [ARP_TERM_NEXT_DROP] = "error-drop",
  },
  .format_buffer = format_ethernet_arp_header,
  .format_trace = format_arp_term_input_trace,
}

(constructor) VLIB_REGISTER_NODE (arp_term_l2bd_node)

Definition at line 2936 of file arp.c.

u32 arp_term_next_node_index[32]

Definition at line 2723 of file arp.c.

char* ethernet_arp_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_ethernet_arp_error

}

Definition at line 1638 of file arp.c.

ethernet_arp_main_t ethernet_arp_main

static

Definition at line 113 of file arp.c.

vlib_cli_command_t ip_arp_add_del_command

static

Initial value:

= {
  .path = "set ip arp",
  .short_help =
  "set ip arp [del] <intfc> <ip-address> <mac-address> [static] [no-fib-entry] [count <count>] [fib-id <fib-id>] [proxy <lo-addr> - <hi-addr>]",
  .function = ip_arp_add_del_command_fn,
}

(constructor) VLIB_CLI_COMMAND (ip_arp_add_del_command)

Definition at line 2642 of file arp.c.

u32 send_garp_na_process_node_index

Definition at line 131 of file arp.c.

vlib_cli_command_t set_int_proxy_enable_command

static

Initial value:

= {
  .path = "set interface proxy-arp",
  .short_help =
  "set interface proxy-arp <intfc> [enable|disable]",
  .function = set_int_proxy_arp_command_fn,
}

(constructor) VLIB_CLI_COMMAND (set_int_proxy_enable_command)

Definition at line 2703 of file arp.c.

vlib_cli_command_t show_ip4_arp_command

static

Initial value:

= {
  .path = "show ip arp",
  .function = show_ip4_arp,
  .short_help = "show ip arp",
}

(constructor) VLIB_CLI_COMMAND (show_ip4_arp_command)

Definition at line 1846 of file arp.c.

const u8 vrrp_prefix[] = { 0x00, 0x00, 0x5E, 0x00, 0x01 }

static

Definition at line 128 of file arp.c.