ip4_fib.c File Reference

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Data Structures
struct	ip4_fib_table_special_prefix_t_

Typedefs
typedef struct ip4_fib_table_special_prefix_t_	ip4_fib_table_special_prefix_t

Functions
static u32	ip4_create_fib_with_table_id (u32 table_id)
void	ip4_fib_table_destroy (ip4_fib_t *fib)
u32	ip4_fib_table_find_or_create_and_lock (u32 table_id)
	Get or create an IPv4 fib. More...
u32	ip4_fib_table_create_and_lock (void)
u32	ip4_fib_table_get_index_for_sw_if_index (u32 sw_if_index)
flow_hash_config_t	ip4_fib_table_get_flow_hash_config (u32 fib_index)
fib_node_index_t	ip4_fib_table_lookup_exact_match (const ip4_fib_t *fib, const ip4_address_t *addr, u32 len)
index_t	ip4_fib_table_lookup_lb (ip4_fib_t *fib, const ip4_address_t *addr)
fib_node_index_t	ip4_fib_table_lookup (const ip4_fib_t *fib, const ip4_address_t *addr, u32 len)
	The IPv4 FIB. More...
void	ip4_fib_table_entry_insert (ip4_fib_t *fib, const ip4_address_t *addr, u32 len, fib_node_index_t fib_entry_index)
void	ip4_fib_table_entry_remove (ip4_fib_t *fib, const ip4_address_t *addr, u32 len)
void	ip4_fib_table_fwding_dpo_update (ip4_fib_t *fib, const ip4_address_t *addr, u32 len, const dpo_id_t *dpo)
void	ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib, const ip4_address_t *addr, u32 len, const dpo_id_t *dpo)
static void	ip4_fib_table_show_all (ip4_fib_t *fib, vlib_main_t *vm)
static void	ip4_fib_table_show_one (ip4_fib_t *fib, vlib_main_t *vm, ip4_address_t *address, u32 mask_len)
static clib_error_t *	ip4_show_fib (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
static const ip4_fib_table_special_prefix_t	ip4_specials []
static vlib_cli_command_t	ip4_show_fib_command
	(constructor) VLIB_CLI_COMMAND (ip4_show_fib_command) More...

Typedef Documentation

typedef struct ip4_fib_table_special_prefix_t_ ip4_fib_table_special_prefix_t

Function Documentation

static u32 ip4_create_fib_with_table_id ( u32  table_id )

static

Definition at line 104 of file ip4_fib.c.

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u32 ip4_fib_table_create_and_lock

(

void

)

Definition at line 206 of file ip4_fib.c.

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void ip4_fib_table_destroy

(

ip4_fib_t *

fib

)

Definition at line 154 of file ip4_fib.c.

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void ip4_fib_table_entry_insert	(	ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len,
		fib_node_index_t	fib_entry_index
	)

Definition at line 308 of file ip4_fib.c.

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void ip4_fib_table_entry_remove	(	ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len
	)

Definition at line 338 of file ip4_fib.c.

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u32 ip4_fib_table_find_or_create_and_lock

(

u32

table_id

)

Get or create an IPv4 fib.

Get or create an IPv4 fib with the provided table ID.

Parameters

table_id

When set to ~0, an arbitrary and unused fib ID is picked and can be retrieved with ret->table_id. Otherwise, the fib ID to be used to retrieve or create the desired fib.

Returns

A pointer to the retrieved or created fib.

Definition at line 192 of file ip4_fib.c.

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void ip4_fib_table_fwding_dpo_remove	(	ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len,
		const dpo_id_t *	dpo
	)

Definition at line 373 of file ip4_fib.c.

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void ip4_fib_table_fwding_dpo_update	(	ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len,
		const dpo_id_t *	dpo
	)

Definition at line 364 of file ip4_fib.c.

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flow_hash_config_t ip4_fib_table_get_flow_hash_config

(

u32

fib_index

)

Definition at line 226 of file ip4_fib.c.

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u32 ip4_fib_table_get_index_for_sw_if_index

(

u32

sw_if_index

)

Definition at line 212 of file ip4_fib.c.

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fib_node_index_t ip4_fib_table_lookup	(	const ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len
	)

The IPv4 FIB.

FIBs are composed of two prefix data-bases (akak tables). The non-forwarding table contains all the routes that the control plane has programmed, the forwarding table contains the sub-set of those routes that can be used to forward packets. In the IPv4 FIB the non-forwarding table is an array of hash tables indexed by mask length, the forwarding table is an mtrie

This IPv4 FIB is used by the protocol independent FIB. So directly using this APIs in client code is not encouraged. However, this IPv4 FIB can be used if all the client wants is an IPv4 prefix data-base

Definition at line 285 of file ip4_fib.c.

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fib_node_index_t ip4_fib_table_lookup_exact_match	(	const ip4_fib_t *	fib,
		const ip4_address_t *	addr,
		u32	len
	)

Definition at line 237 of file ip4_fib.c.

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index_t ip4_fib_table_lookup_lb	(	ip4_fib_t *	fib,
		const ip4_address_t *	addr
	)

Definition at line 261 of file ip4_fib.c.

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static void ip4_fib_table_show_all ( ip4_fib_t *  fib, vlib_main_t *  vm  )

static

Definition at line 382 of file ip4_fib.c.

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static void ip4_fib_table_show_one ( ip4_fib_t *  fib, vlib_main_t *  vm, ip4_address_t *  address, u32  mask_len  )

static

Definition at line 420 of file ip4_fib.c.

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static clib_error_t* ip4_show_fib ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 432 of file ip4_fib.c.

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Variable Documentation

vlib_cli_command_t ip4_show_fib_command

static

Initial value:

= {
    .path = "show ip fib",
    .short_help = "show ip fib [summary] [table <table-id>] [index <fib-id>] [<ip4-addr>[/<mask>]] [mtrie]",
    .function = ip4_show_fib,
}

(constructor) VLIB_CLI_COMMAND (ip4_show_fib_command)

Definition at line 659 of file ip4_fib.c.

const ip4_fib_table_special_prefix_t ip4_specials[]

static

Definition at line 29 of file ip4_fib.c.