ip4_mfib.c File Reference

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Macros
#define	IPV4_MFIB_GRP_LEN(_len)   (_len > 32 ? 32 : _len)
#define	IP4_MFIB_MK_KEY(_grp, _src, _len, _key)
#define	IP4_MFIB_MK_GRP_KEY(_grp, _len, _key)

Functions
static u32	ip4_create_mfib_with_table_id (u32 table_id, mfib_source_t src)
void	ip4_mfib_table_destroy (ip4_mfib_t *mfib)
u32	ip4_mfib_table_find_or_create_and_lock (u32 table_id, mfib_source_t src)
	Get or create an IPv4 fib. More...
u32	ip4_mfib_table_get_index_for_sw_if_index (u32 sw_if_index)
fib_node_index_t	ip4_mfib_table_lookup_exact_match (const ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len)
fib_node_index_t	ip4_mfib_table_lookup (const ip4_mfib_t *mfib, const ip4_address_t *src, const ip4_address_t *grp, u32 len)
	The IPv4 Multicast-FIB. More...
fib_node_index_t	ip4_mfib_table_get_less_specific (const ip4_mfib_t *mfib, const ip4_address_t *src, const ip4_address_t *grp, u32 len)
void	ip4_mfib_table_entry_insert (ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len, fib_node_index_t fib_entry_index)
void	ip4_mfib_table_entry_remove (ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len)
void	ip4_mfib_table_walk (ip4_mfib_t *mfib, mfib_table_walk_fn_t fn, void *ctx)
	Walk the IP4 mfib table. More...
u8 *	format_ip4_mfib_table_memory (u8 *s, va_list *args)
	format (display) the memory usage for IP4 mfibs More...
static void	ip4_mfib_table_show_all (ip4_mfib_t *mfib, vlib_main_t *vm)
static void	ip4_mfib_table_show_one (ip4_mfib_t *mfib, vlib_main_t *vm, ip4_address_t *src, ip4_address_t *grp, u32 mask_len)
static clib_error_t *	ip4_show_mfib (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
static const mfib_prefix_t	ip4_specials []
static vlib_cli_command_t	ip4_show_mfib_command
	(constructor) VLIB_CLI_COMMAND (ip4_show_mfib_command) More...

Macro Definition Documentation

IP4_MFIB_MK_GRP_KEY

#define IP4_MFIB_MK_GRP_KEY	(		_grp,
			_len,
			_key
	)

Value:

{                                                                       \
    _key  = ((u64)(_grp->data_u32 &                                     \
                   ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \
}

Definition at line 153 of file ip4_mfib.c.

IP4_MFIB_MK_KEY

#define IP4_MFIB_MK_KEY	(		_grp,
			_src,
			_len,
			_key
	)

Value:

{                                                                       \
    _key  = ((u64)(_grp->data_u32 &                                     \
                   ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \
    _key |= _src->data_u32;                                             \
}

Definition at line 147 of file ip4_mfib.c.

IPV4_MFIB_GRP_LEN

#define IPV4_MFIB_GRP_LEN

(

_len

)

(_len > 32 ? 32 : _len)

Definition at line 144 of file ip4_mfib.c.

Function Documentation

format_ip4_mfib_table_memory()

u8* format_ip4_mfib_table_memory	(	u8 *	s,
		va_list *	args
	)

format (display) the memory usage for IP4 mfibs

Definition at line 341 of file ip4_mfib.c.

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ip4_create_mfib_with_table_id()

static u32 ip4_create_mfib_with_table_id ( u32  table_id, mfib_source_t  src  )

static

Definition at line 36 of file ip4_mfib.c.

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ip4_mfib_table_destroy()

void ip4_mfib_table_destroy

(

ip4_mfib_t *

mfib

)

Definition at line 84 of file ip4_mfib.c.

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ip4_mfib_table_entry_insert()

void ip4_mfib_table_entry_insert	(	ip4_mfib_t *	mfib,
		const ip4_address_t *	grp,
		const ip4_address_t *	src,
		u32	len,
		fib_node_index_t	fib_entry_index
	)

Definition at line 260 of file ip4_mfib.c.

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ip4_mfib_table_entry_remove()

void ip4_mfib_table_entry_remove	(	ip4_mfib_t *	mfib,
		const ip4_address_t *	grp,
		const ip4_address_t *	src,
		u32	len
	)

Definition at line 291 of file ip4_mfib.c.

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ip4_mfib_table_find_or_create_and_lock()

u32 ip4_mfib_table_find_or_create_and_lock	(	u32	table_id,
		mfib_source_t	src
	)

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 117 of file ip4_mfib.c.

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ip4_mfib_table_get_index_for_sw_if_index()

u32 ip4_mfib_table_get_index_for_sw_if_index

(

u32

sw_if_index

)

Definition at line 131 of file ip4_mfib.c.

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ip4_mfib_table_get_less_specific()

fib_node_index_t ip4_mfib_table_get_less_specific	(	const ip4_mfib_t *	mfib,
		const ip4_address_t *	src,
		const ip4_address_t *	grp,
		u32	len
	)

Definition at line 228 of file ip4_mfib.c.

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ip4_mfib_table_lookup()

fib_node_index_t ip4_mfib_table_lookup	(	const ip4_mfib_t *	fib,
		const ip4_address_t *	src,
		const ip4_address_t *	grp,
		u32	len
	)

The IPv4 Multicast-FIB.

FIXME

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 190 of file ip4_mfib.c.

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ip4_mfib_table_lookup_exact_match()

fib_node_index_t ip4_mfib_table_lookup_exact_match	(	const ip4_mfib_t *	mfib,
		const ip4_address_t *	grp,
		const ip4_address_t *	src,
		u32	len
	)

Definition at line 165 of file ip4_mfib.c.

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ip4_mfib_table_show_all()

static void ip4_mfib_table_show_all ( ip4_mfib_t *  mfib, vlib_main_t *  vm  )

static

Definition at line 377 of file ip4_mfib.c.

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ip4_mfib_table_show_one()

static void ip4_mfib_table_show_one ( ip4_mfib_t *  mfib, vlib_main_t *  vm, ip4_address_t *  src, ip4_address_t *  grp, u32  mask_len  )

static

Definition at line 415 of file ip4_mfib.c.

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ip4_mfib_table_walk()

void ip4_mfib_table_walk	(	ip4_mfib_t *	mfib,
		mfib_table_walk_fn_t	fn,
		void *	ctx
	)

Walk the IP4 mfib table.

Parameters

mfib	the table to walk
fn	The function to invoke on each entry visited
ctx	A context passed in the visit function

Definition at line 318 of file ip4_mfib.c.

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ip4_show_mfib()

static clib_error_t* ip4_show_mfib ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 428 of file ip4_mfib.c.

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Variable Documentation

ip4_show_mfib_command

vlib_cli_command_t ip4_show_mfib_command

static

Initial value:

= {
    .path = "show ip mfib",
    .short_help = "show ip mfib [summary] [table <table-id>] [index <fib-id>] [<grp-addr>[/<mask>]] [<grp-addr>] [<src-addr> <grp-addr>]",
    .function = ip4_show_mfib,
}

(constructor) VLIB_CLI_COMMAND (ip4_show_mfib_command)

Definition at line 586 of file ip4_mfib.c.

ip4_specials

const mfib_prefix_t ip4_specials[]

static

Initial value:

= {
    {
        
        .fp_src_addr = {
            .ip4.data_u32 = 0,
        },
        .fp_grp_addr = {
            .ip4.data_u32 = 0,
        },
        .fp_len  = 0,
        .fp_proto = FIB_PROTOCOL_IP4,
    },
}

Definition at line 21 of file ip4_mfib.c.