ip4_forward.c File Reference

IPv4 Forwarding. More...

Include dependency graph for ip4_forward.c:

Go to the source code of this file.

Data Structures
struct	ip4_forward_next_trace_t

Macros
#define	foreach_notrace_ip4_arp_error

Enumerations
enum	ip4_rewrite_next_t { IP4_REWRITE_NEXT_DROP, IP4_REWRITE_NEXT_ARP, IP4_REWRITE_NEXT_ICMP_ERROR }

Functions
void	ip4_forward_next_trace (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, vlib_rx_or_tx_t which_adj_index)
static uword	ip4_lookup_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int lookup_for_responses_to_locally_received_packets)
static uword	ip4_lookup (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	IPv4 lookup node. More...
static u8 *	format_ip4_lookup_trace (u8 *s, va_list *args)
static uword	ip4_load_balance (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static u8 *	format_ip4_forward_next_trace (u8 *s, va_list *args)
ip4_address_t *	ip4_interface_first_address (ip4_main_t *im, u32 sw_if_index, ip_interface_address_t **result_ia)
static void	ip4_add_interface_routes (u32 sw_if_index, ip4_main_t *im, u32 fib_index, ip_interface_address_t *a)
static void	ip4_del_interface_routes (ip4_main_t *im, u32 fib_index, ip4_address_t *address, u32 address_length)
void	ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable)
static clib_error_t *	ip4_add_del_interface_address_internal (vlib_main_t *vm, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 is_del)
clib_error_t *	ip4_add_del_interface_address (vlib_main_t *vm, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 is_del)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_flow_classify, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_inacl, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_source_check_1, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_source_check_2, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_source_and_port_range_check_rx, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_policer_classify, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_ipsec, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_vpath, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_lookup, static)
	VNET_IP4_UNICAST_FEATURE_INIT (ip4_drop, static)
	VNET_IP4_MULTICAST_FEATURE_INIT (ip4_vpath_mc, static)
	VNET_IP4_MULTICAST_FEATURE_INIT (ip4_lookup_mc, static)
	VNET_IP4_MULTICAST_FEATURE_INIT (ip4_mc_drop, static)
	VNET_IP4_TX_FEATURE_INIT (ip4_source_and_port_range_check_tx, static)
	VNET_IP4_TX_FEATURE_INIT (interface_output, static)
static clib_error_t *	ip4_feature_init (vlib_main_t *vm, ip4_main_t *im)
static clib_error_t *	ip4_sw_interface_add_del (vnet_main_t *vnm, u32 sw_if_index, u32 is_add)
	VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip4_sw_interface_add_del)
clib_error_t *	ip4_lookup_init (vlib_main_t *vm)
static u8 *	format_ip4_rewrite_trace (u8 *s, va_list *args)
static uword	ip4_drop_or_punt (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, ip4_error_t error_code)
static uword	ip4_drop (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	ip4_punt (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
u16	ip4_tcp_udp_compute_checksum (vlib_main_t *vm, vlib_buffer_t *p0, ip4_header_t *ip0)
static u32	ip4_tcp_udp_validate_checksum (vlib_main_t *vm, vlib_buffer_t *p0)
static uword	ip4_local (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
void	ip4_register_protocol (u32 protocol, u32 node_index)
static clib_error_t *	show_ip_local_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static uword	ip4_arp_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_glean)
static uword	ip4_arp (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	ip4_glean (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
clib_error_t *	arp_notrace_init (vlib_main_t *vm)
clib_error_t *	ip4_probe_neighbor (vlib_main_t *vm, ip4_address_t *dst, u32 sw_if_index)
static uword	ip4_rewrite_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int rewrite_for_locally_received_packets, int is_midchain)
static uword	ip4_rewrite_transit (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	IPv4 transit rewrite node. More...
static uword	ip4_rewrite_local (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	IPv4 local rewrite node. More...
static uword	ip4_midchain (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static clib_error_t *	add_del_interface_table (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static uword	ip4_lookup_multicast (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
int	ip4_lookup_validate (ip4_address_t *a, u32 fib_index0)
static clib_error_t *	test_lookup_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
int	vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config)
static clib_error_t *	set_ip_flow_hash_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
int	vnet_set_ip4_classify_intfc (vlib_main_t *vm, u32 sw_if_index, u32 table_index)
static clib_error_t *	set_ip_classify_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
vlib_node_registration_t	ip4_lookup_node
	(constructor) VLIB_REGISTER_NODE (ip4_lookup_node) More...
vlib_node_registration_t	ip4_load_balance_node
	(constructor) VLIB_REGISTER_NODE (ip4_load_balance_node) More...
static char *	rx_feature_start_nodes []
static char *	tx_feature_start_nodes []
ip4_main_t	ip4_main
	Global ip4 main structure. More...
static vlib_node_registration_t	ip4_drop_node
	(constructor) VLIB_REGISTER_NODE (ip4_drop_node) More...
static vlib_node_registration_t	ip4_punt_node
	(constructor) VLIB_REGISTER_NODE (ip4_punt_node) More...
static vlib_node_registration_t	ip4_local_node
	(constructor) VLIB_REGISTER_NODE (ip4_local_node) More...
static vlib_cli_command_t	show_ip_local
	(constructor) VLIB_CLI_COMMAND (show_ip_local) More...
static char *	ip4_arp_error_strings []
vlib_node_registration_t	ip4_arp_node
	(constructor) VLIB_REGISTER_NODE (ip4_arp_node) More...
vlib_node_registration_t	ip4_glean_node
	(constructor) VLIB_REGISTER_NODE (ip4_glean_node) More...
vlib_node_registration_t	ip4_rewrite_node
	(constructor) VLIB_REGISTER_NODE (ip4_rewrite_node) More...
vlib_node_registration_t	ip4_midchain_node
	(constructor) VLIB_REGISTER_NODE (ip4_midchain_node) More...
vlib_node_registration_t	ip4_rewrite_local_node
	(constructor) VLIB_REGISTER_NODE (ip4_rewrite_local_node) More...
static vlib_cli_command_t	set_interface_ip_table_command
	(constructor) VLIB_CLI_COMMAND (set_interface_ip_table_command) More...
static vlib_node_registration_t	ip4_lookup_multicast_node
	(constructor) VLIB_REGISTER_NODE (ip4_lookup_multicast_node) More...
static vlib_node_registration_t	ip4_multicast_node
	(constructor) VLIB_REGISTER_NODE (ip4_multicast_node) More...
static vlib_cli_command_t	lookup_test_command
	(constructor) VLIB_CLI_COMMAND (lookup_test_command) More...
static vlib_cli_command_t	set_ip_flow_hash_command
	(constructor) VLIB_CLI_COMMAND (set_ip_flow_hash_command) More...
static vlib_cli_command_t	set_ip_classify_command
	(constructor) VLIB_CLI_COMMAND (set_ip_classify_command) More...

Detailed Description

IPv4 Forwarding.

This file contains the source code for IPv4 forwarding.

Definition in file ip4_forward.c.

Macro Definition Documentation

#define foreach_notrace_ip4_arp_error

Value:

_(DROP)                                         \
_(REQUEST_SENT)                                 \
_(REPLICATE_DROP)                               \
_(REPLICATE_FAIL)

Definition at line 2081 of file ip4_forward.c.

Enumeration Type Documentation

enum ip4_rewrite_next_t

Enumerator
IP4_REWRITE_NEXT_DROP
IP4_REWRITE_NEXT_ARP
IP4_REWRITE_NEXT_ICMP_ERROR

Definition at line 2169 of file ip4_forward.c.

Function Documentation

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

static

Definition at line 2701 of file ip4_forward.c.

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clib_error_t* arp_notrace_init

(

vlib_main_t *

vm

)

Definition at line 2087 of file ip4_forward.c.

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static u8 * format_ip4_forward_next_trace ( u8 *  s, va_list *  args  )

static

Definition at line 1134 of file ip4_forward.c.

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static u8 * format_ip4_lookup_trace ( u8 *  s, va_list *  args  )

static

Definition at line 1146 of file ip4_forward.c.

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static u8* format_ip4_rewrite_trace ( u8 *  s, va_list *  args  )

static

Definition at line 1161 of file ip4_forward.c.

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clib_error_t* ip4_add_del_interface_address	(	vlib_main_t *	vm,
		u32	sw_if_index,
		ip4_address_t *	address,
		u32	address_length,
		u32	is_del
	)

Definition at line 847 of file ip4_forward.c.

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static clib_error_t* ip4_add_del_interface_address_internal ( vlib_main_t *  vm, u32  sw_if_index, ip4_address_t *  address, u32  address_length, u32  is_del  )

static

Definition at line 765 of file ip4_forward.c.

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static void ip4_add_interface_routes ( u32  sw_if_index, ip4_main_t *  im, u32  fib_index, ip_interface_address_t *  a  )

static

Definition at line 611 of file ip4_forward.c.

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static uword ip4_arp ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 2025 of file ip4_forward.c.

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static uword ip4_arp_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_glean  )

inlinestatic

Definition at line 1841 of file ip4_forward.c.

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static void ip4_del_interface_routes ( ip4_main_t *  im, u32  fib_index, ip4_address_t *  address, u32  address_length  )

static

Definition at line 684 of file ip4_forward.c.

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static uword ip4_drop ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1293 of file ip4_forward.c.

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static uword ip4_drop_or_punt ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, ip4_error_t  error_code  )

static

Definition at line 1270 of file ip4_forward.c.

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static clib_error_t* ip4_feature_init ( vlib_main_t *  vm, ip4_main_t *  im  )

static

Definition at line 967 of file ip4_forward.c.

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void ip4_forward_next_trace	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame,
		vlib_rx_or_tx_t	which_adj_index
	)

Definition at line 1183 of file ip4_forward.c.

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static uword ip4_glean ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 2033 of file ip4_forward.c.

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ip4_address_t* ip4_interface_first_address	(	ip4_main_t *	im,
		u32	sw_if_index,
		ip_interface_address_t **	result_ia
	)

Definition at line 591 of file ip4_forward.c.

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static uword ip4_load_balance ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

inlinestatic

Definition at line 498 of file ip4_forward.c.

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static uword ip4_local ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1407 of file ip4_forward.c.

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static uword ip4_lookup ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

IPv4 lookup node.

Node Identifier:

ip4-lookup

This is the main IPv4 lookup dispatch node.

Parameters

vm	vlib_main_t corresponding to the current thread
node	vlib_node_runtime_t
frame	vlib_frame_t whose contents should be dispatched

Graph mechanics: buffer metadata, next index usage

Uses:

• vnet_buffer(b)->sw_if_index[VLIB_RX]
  • Indicates the sw_if_index value of the interface that the packet was received on.
• vnet_buffer(b)->sw_if_index[VLIB_TX]
  • When the value is ~0 then the node performs a longest prefix match (LPM) for the packet destination address in the FIB attached to the receive interface.
  • Otherwise perform LPM for the packet destination address in the indicated FIB. In this case [VLIB_TX] is a FIB index value (0, 1, ...) and not a VRF id.

Sets:

• vnet_buffer(b)->ip.adj_index[VLIB_TX]
  • The lookup result adjacency index.

Next Index:

• Dispatches the packet to the node index found in ip_adjacency_t adj->lookup_next_index (where adj is the lookup result adjacency).

Definition at line 474 of file ip4_forward.c.

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clib_error_t* ip4_lookup_init

(

vlib_main_t *

vm

)

Definition at line 1063 of file ip4_forward.c.

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static uword ip4_lookup_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  lookup_for_responses_to_locally_received_packets  )

inlinestatic

Definition at line 68 of file ip4_forward.c.

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static uword ip4_lookup_multicast ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 2777 of file ip4_forward.c.

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int ip4_lookup_validate	(	ip4_address_t *	a,
		u32	fib_index0
	)

Definition at line 3015 of file ip4_forward.c.

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static uword ip4_midchain ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 2649 of file ip4_forward.c.

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clib_error_t* ip4_probe_neighbor	(	vlib_main_t *	vm,
		ip4_address_t *	dst,
		u32	sw_if_index
	)

Definition at line 2107 of file ip4_forward.c.

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static uword ip4_punt ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1299 of file ip4_forward.c.

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void ip4_register_protocol	(	u32	protocol,
		u32	node_index
	)

Definition at line 1790 of file ip4_forward.c.

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static uword ip4_rewrite_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  rewrite_for_locally_received_packets, int  is_midchain  )

inlinestatic

Definition at line 2176 of file ip4_forward.c.

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static uword ip4_rewrite_local ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

IPv4 local rewrite node.

Node Identifier:

ip4-rewrite-local

This is the IPv4 local rewrite node. Fetch the ip adjacency, check the outbound interface mtu, apply the adjacency rewrite, and send pkts to the adjacency rewrite header's rewrite_next_index. Deal with hemorrhoids of the form "some clown sends an icmp4 w/ src = dst = interface addr."

Parameters

vm	vlib_main_t corresponding to the current thread
node	vlib_node_runtime_t
frame	vlib_frame_t whose contents should be dispatched

Graph mechanics: buffer metadata, next index usage

Uses:

• vnet_buffer(b)->ip.adj_index[VLIB_RX]
  • the rewrite adjacency index
• adj->lookup_next_index
  • Must be IP_LOOKUP_NEXT_REWRITE or IP_LOOKUP_NEXT_ARP, otherwise the packet will be dropped.
• adj->rewrite_header
  • Rewrite string length, rewrite string, next_index

Sets:

• b->current_data, b->current_length
  • Updated net of applying the rewrite string

Next Indices:

• adj->rewrite_header.next_index or error-drop

Definition at line 2640 of file ip4_forward.c.

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static uword ip4_rewrite_transit ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

IPv4 transit rewrite node.

Node Identifier:

ip4-rewrite-transit

This is the IPv4 transit-rewrite node: decrement TTL, fix the ipv4 header checksum, fetch the ip adjacency, check the outbound mtu, apply the adjacency rewrite, and send pkts to the adjacency rewrite header's rewrite_next_index.

Parameters

vm	vlib_main_t corresponding to the current thread
node	vlib_node_runtime_t
frame	vlib_frame_t whose contents should be dispatched

Graph mechanics: buffer metadata, next index usage

Uses:

• vnet_buffer(b)->ip.adj_index[VLIB_TX]
  • the rewrite adjacency index
• adj->lookup_next_index
  • Must be IP_LOOKUP_NEXT_REWRITE or IP_LOOKUP_NEXT_ARP, otherwise the packet will be dropped.
• adj->rewrite_header
  • Rewrite string length, rewrite string, next_index

Sets:

• b->current_data, b->current_length
  • Updated net of applying the rewrite string

Next Indices:

• adj->rewrite_header.next_index or error-drop

Definition at line 2598 of file ip4_forward.c.

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static clib_error_t* ip4_sw_interface_add_del ( vnet_main_t *  vnm, u32  sw_if_index, u32  is_add  )

static

Definition at line 1005 of file ip4_forward.c.

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void ip4_sw_interface_enable_disable	(	u32	sw_if_index,
		u32	is_enable
	)

Definition at line 709 of file ip4_forward.c.

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u16 ip4_tcp_udp_compute_checksum	(	vlib_main_t *	vm,
		vlib_buffer_t *	p0,
		ip4_header_t *	ip0
	)

Definition at line 1336 of file ip4_forward.c.

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static u32 ip4_tcp_udp_validate_checksum ( vlib_main_t *  vm, vlib_buffer_t *  p0  )

static

Definition at line 1381 of file ip4_forward.c.

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

static

Definition at line 3325 of file ip4_forward.c.

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

static

Definition at line 3131 of file ip4_forward.c.

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

static

Definition at line 1801 of file ip4_forward.c.

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

static

Definition at line 3038 of file ip4_forward.c.

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VNET_IP4_MULTICAST_FEATURE_INIT	(	ip4_vpath_mc	,
		static
	)

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VNET_IP4_MULTICAST_FEATURE_INIT	(	ip4_lookup_mc	,
		static
	)

VNET_IP4_MULTICAST_FEATURE_INIT	(	ip4_mc_drop	,
		static
	)

VNET_IP4_TX_FEATURE_INIT	(	ip4_source_and_port_range_check_tx	,
		static
	)

VNET_IP4_TX_FEATURE_INIT	(	interface_output	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_flow_classify	,
		static
	)

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VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_inacl	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_source_check_1	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_source_check_2	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_source_and_port_range_check_rx	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_policer_classify	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_ipsec	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_vpath	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_lookup	,
		static
	)

VNET_IP4_UNICAST_FEATURE_INIT	(	ip4_drop	,
		static
	)

int vnet_set_ip4_classify_intfc	(	vlib_main_t *	vm,
		u32	sw_if_index,
		u32	table_index
	)

Definition at line 3263 of file ip4_forward.c.

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int vnet_set_ip4_flow_hash	(	u32	table_id,
		u32	flow_hash_config
	)

Definition at line 3115 of file ip4_forward.c.

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VNET_SW_INTERFACE_ADD_DEL_FUNCTION

(

ip4_sw_interface_add_del

)

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Variable Documentation

char* ip4_arp_error_strings[]

static

Initial value:

= {
  [IP4_ARP_ERROR_DROP] = "address overflow drops",
  [IP4_ARP_ERROR_REQUEST_SENT] = "ARP requests sent",
  [IP4_ARP_ERROR_NON_ARP_ADJ] = "ARPs to non-ARP adjacencies",
  [IP4_ARP_ERROR_REPLICATE_DROP] = "ARP replication completed",
  [IP4_ARP_ERROR_REPLICATE_FAIL] = "ARP replication failed",
  [IP4_ARP_ERROR_NO_SOURCE_ADDRESS] = "no source address for ARP request",
}

Definition at line 2040 of file ip4_forward.c.

vlib_node_registration_t ip4_arp_node

Initial value:

= {
  .function = ip4_arp,
  .name = "ip4-arp",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_errors = ARRAY_LEN (ip4_arp_error_strings),
  .error_strings = ip4_arp_error_strings,

  .n_next_nodes = IP4_ARP_N_NEXT,
  .next_nodes = {
    [IP4_ARP_NEXT_DROP] = "error-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_arp_node)

Definition at line 2049 of file ip4_forward.c.

vlib_node_registration_t ip4_drop_node

static

Initial value:

= {
  .function = ip4_drop,
  .name = "ip4-drop",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_next_nodes = 1,
  .next_nodes = {
    [0] = "error-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_drop_node)

Definition at line 1304 of file ip4_forward.c.

vlib_node_registration_t ip4_glean_node

Initial value:

= {
  .function = ip4_glean,
  .name = "ip4-glean",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_errors = ARRAY_LEN (ip4_arp_error_strings),
  .error_strings = ip4_arp_error_strings,

  .n_next_nodes = IP4_ARP_N_NEXT,
  .next_nodes = {
    [IP4_ARP_NEXT_DROP] = "error-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_glean_node)

Definition at line 2065 of file ip4_forward.c.

vlib_node_registration_t ip4_load_balance_node

Initial value:

= {
  .function = ip4_load_balance,
  .name = "ip4-load-balance",
  .vector_size = sizeof (u32),
  .sibling_of = "ip4-lookup",

  .format_trace = format_ip4_forward_next_trace,
}

(constructor) VLIB_REGISTER_NODE (ip4_load_balance_node)

Definition at line 578 of file ip4_forward.c.

vlib_node_registration_t ip4_local_node

static

Initial value:

= {
  .function = ip4_local,
  .name = "ip4-local",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_next_nodes = IP_LOCAL_N_NEXT,
  .next_nodes = {
    [IP_LOCAL_NEXT_DROP] = "error-drop",
    [IP_LOCAL_NEXT_PUNT] = "error-punt",
    [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip4-udp-lookup",
    [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_local_node)

Definition at line 1772 of file ip4_forward.c.

vlib_node_registration_t ip4_lookup_multicast_node

static

Initial value:

= {
  .function = ip4_lookup_multicast,
  .name = "ip4-lookup-multicast",
  .vector_size = sizeof (u32),
  .sibling_of = "ip4-lookup",
  .format_trace = format_ip4_lookup_trace,

  .n_next_nodes = 0,
}

(constructor) VLIB_REGISTER_NODE (ip4_lookup_multicast_node)

Definition at line 2990 of file ip4_forward.c.

vlib_node_registration_t ip4_lookup_node

Initial value:

= {
  .function = ip4_lookup,
  .name = "ip4-lookup",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_lookup_trace,
  .n_next_nodes = IP_LOOKUP_N_NEXT,
  .next_nodes = IP4_LOOKUP_NEXT_NODES,
}

(constructor) VLIB_REGISTER_NODE (ip4_lookup_node)

Definition at line 485 of file ip4_forward.c.

ip4_main_t ip4_main

Global ip4 main structure.

Definition at line 1060 of file ip4_forward.c.

vlib_node_registration_t ip4_midchain_node

Initial value:

= {
  .function = ip4_midchain,
  .name = "ip4-midchain",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .sibling_of = "ip4-rewrite-transit",
}

(constructor) VLIB_REGISTER_NODE (ip4_midchain_node)

Definition at line 2674 of file ip4_forward.c.

vlib_node_registration_t ip4_multicast_node

static

Initial value:

= {
  .function = ip4_drop,
  .name = "ip4-multicast",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_next_nodes = 1,
  .next_nodes = {
    [0] = "error-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_multicast_node)

Definition at line 3002 of file ip4_forward.c.

vlib_node_registration_t ip4_punt_node

static

Initial value:

= {
  .function = ip4_punt,
  .name = "ip4-punt",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_forward_next_trace,

  .n_next_nodes = 1,
  .next_nodes = {
    [0] = "error-punt",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_punt_node)

Definition at line 1319 of file ip4_forward.c.

vlib_node_registration_t ip4_rewrite_local_node

Initial value:

= {
  .function = ip4_rewrite_local,
  .name = "ip4-rewrite-local",
  .vector_size = sizeof (u32),

  .sibling_of = "ip4-rewrite-transit",

  .format_trace = format_ip4_rewrite_trace,

  .n_next_nodes = 0,
}

(constructor) VLIB_REGISTER_NODE (ip4_rewrite_local_node)

Definition at line 2686 of file ip4_forward.c.

vlib_node_registration_t ip4_rewrite_node

Initial value:

= {
  .function = ip4_rewrite_transit,
  .name = "ip4-rewrite-transit",
  .vector_size = sizeof (u32),

  .format_trace = format_ip4_rewrite_trace,

  .n_next_nodes = 3,
  .next_nodes = {
    [IP4_REWRITE_NEXT_DROP] = "error-drop",
    [IP4_REWRITE_NEXT_ARP] = "ip4-arp",
    [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_rewrite_node)

Definition at line 2657 of file ip4_forward.c.

vlib_cli_command_t lookup_test_command

static

Initial value:

= {
    .path = "test lookup",
    .short_help = "test lookup <ipv4-addr> [table <fib-id>] [count <nn>]",
    .function = test_lookup_command_fn,
}

(constructor) VLIB_CLI_COMMAND (lookup_test_command)

Definition at line 3108 of file ip4_forward.c.

char* rx_feature_start_nodes[]

static

Initial value:

=
  { "ip4-input", "ip4-input-no-checksum"}

Definition at line 941 of file ip4_forward.c.

vlib_cli_command_t set_interface_ip_table_command

static

Initial value:

= {
  .path = "set interface ip table",
  .function = add_del_interface_table,
  .short_help = "set interface ip table <interface> <table-id>",
}

(constructor) VLIB_CLI_COMMAND (set_interface_ip_table_command)

Definition at line 2768 of file ip4_forward.c.

vlib_cli_command_t set_ip_classify_command

static

Initial value:

= {
    .path = "set ip classify",
    .short_help =
    "set ip classify intfc <interface> table-index <classify-idx>",
    .function = set_ip_classify_command_fn,
}

(constructor) VLIB_CLI_COMMAND (set_ip_classify_command)

Definition at line 3377 of file ip4_forward.c.

vlib_cli_command_t set_ip_flow_hash_command

static

Initial value:

= {
  .path = "set ip flow-hash",
  .short_help =
  "set ip flow-hash table <table-id> [src] [dst] [sport] [dport] [proto] [reverse]",
  .function = set_ip_flow_hash_command_fn,
}

(constructor) VLIB_CLI_COMMAND (set_ip_flow_hash_command)

Definition at line 3255 of file ip4_forward.c.

vlib_cli_command_t show_ip_local

static

Initial value:

= {
  .path = "show ip local",
  .function = show_ip_local_command_fn,
  .short_help = "show ip local",
}

(constructor) VLIB_CLI_COMMAND (show_ip_local)

Definition at line 1833 of file ip4_forward.c.

char* tx_feature_start_nodes[]

static

Initial value:

=
{
  "ip4-rewrite-transit",
  "ip4-midchain",
}

Definition at line 944 of file ip4_forward.c.