Include dependency graph for mpls_tunnel.c:

Data Structures
struct	mpls_tunnel_trace_t_
	Packet trace structure. More...

Typedefs
typedef struct mpls_tunnel_trace_t_	mpls_tunnel_trace_t
	Packet trace structure. More...

Functions
static mpls_tunnel_t *	mpls_tunnel_get_from_sw_if_index (u32 sw_if_index)
	Get a tunnel object from a SW interface index. More...

static fib_forward_chain_type_t	mpls_tunnel_get_fwd_chain_type (const mpls_tunnel_t *mt)
	Return true if the label stack is imp-null only. More...

static u8 *	mpls_tunnel_build_rewrite (vnet_main_t vnm, u32 sw_if_index, vnet_link_t link_type, const void dst_address)
	Build a rewrite string for the MPLS tunnel. More...

static void	mpls_tunnel_stack (adj_index_t ai)
	mpls_tunnel_stack More...

static adj_walk_rc_t	mpls_adj_walk_cb (adj_index_t ai, void *ctx)
	Call back when restacking all adjacencies on a MPLS interface. More...

static void	mpls_tunnel_restack (mpls_tunnel_t *mt)

static clib_error_t *	mpls_tunnel_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)

static void	mpls_tunnel_fixup (vlib_main_t vm, ip_adjacency_t adj, vlib_buffer_t *b0)
	Fixup the adj rewrite post encap. More...

static void	mpls_tunnel_update_adj (vnet_main_t *vnm, u32 sw_if_index, adj_index_t ai)

static u8 *	format_mpls_tunnel_name (u8 s, va_list args)

static u8 *	format_mpls_tunnel_device (u8 s, va_list args)

static u8 *	format_mpls_tunnel_tx_trace (u8 s, va_list args)

static uword	mpls_tunnel_tx (vlib_main_t vm, vlib_node_runtime_t node, vlib_frame_t *frame)
	TX function. More...

	VNET_DEVICE_CLASS (mpls_tunnel_class)

	VNET_HW_INTERFACE_CLASS (mpls_tunnel_hw_interface_class)

const mpls_tunnel_t *	mpls_tunnel_get (u32 mti)

void	mpls_tunnel_walk (mpls_tunnel_walk_cb_t cb, void *ctx)
	Walk all the MPLS tunnels. More...

void	vnet_mpls_tunnel_del (u32 sw_if_index)

void	vnet_mpls_tunnel_add (fib_route_path_t rpaths, mpls_label_t label_stack, u8 l2_only, u32 *sw_if_index)
	Create a new MPLS tunnel. More...

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

static u8 *	format_mpls_tunnel (u8 s, va_list args)

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

static mpls_tunnel_t *	mpls_tunnel_from_fib_node (fib_node_t *node)

static fib_node_back_walk_rc_t	mpls_tunnel_back_walk (fib_node_t node, fib_node_back_walk_ctx_t ctx)
	Function definition to backwalk a FIB node. More...

static fib_node_t *	mpls_tunnel_fib_node_get (fib_node_index_t index)
	Function definition to get a FIB node from its index. More...

static void	mpls_tunnel_last_lock_gone (fib_node_t *node)
	Function definition to inform the FIB node that its last lock has gone. More...

static clib_error_t *	mpls_tunnel_init (vlib_main_t *vm)

Variables
static mpls_tunnel_t *	mpls_tunnel_pool
	pool of tunnel instances More...

static u32 *	mpls_tunnel_free_hw_if_indices
	Pool of free tunnel SW indices - i.e. More...

static u32 *	mpls_tunnel_db
	DB of SW index to tunnel index. More...

static vlib_cli_command_t	create_mpls_tunnel_command
	(constructor) VLIB_CLI_COMMAND (create_mpls_tunnel_command) More...

static vlib_cli_command_t	show_mpls_tunnel_command
	(constructor) VLIB_CLI_COMMAND (show_mpls_tunnel_command) More...

static const fib_node_vft_t	mpls_vft

Typedef Documentation

typedef struct mpls_tunnel_trace_t_ mpls_tunnel_trace_t

Packet trace structure.

Function Documentation

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

static

Definition at line 647 of file mpls_tunnel.c.

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

static

Definition at line 294 of file mpls_tunnel.c.

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

static

Definition at line 287 of file mpls_tunnel.c.

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

static

Definition at line 314 of file mpls_tunnel.c.

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static adj_walk_rc_t mpls_adj_walk_cb	(	adj_index_t	ai,
		void *	ctx
	)

static

Call back when restacking all adjacencies on a MPLS interface.

Definition at line 209 of file mpls_tunnel.c.

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static clib_error_t* mpls_tunnel_admin_up_down	(	vnet_main_t *	vnm,
		u32	hw_if_index,
		u32	flags
	)

static

Definition at line 235 of file mpls_tunnel.c.

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static fib_node_back_walk_rc_t mpls_tunnel_back_walk	(	fib_node_t *	node,
		fib_node_back_walk_ctx_t *	ctx
	)

static

Function definition to backwalk a FIB node.

Definition at line 745 of file mpls_tunnel.c.

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

static

Build a rewrite string for the MPLS tunnel.

We have choices here; 1 - have an Adjacency with a zero length string and stack it on MPLS label objects 2 - put the label header rewrites in the adjacency string.

We choose 2 since it results in fewer graph nodes in the egress path

Definition at line 93 of file mpls_tunnel.c.

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static fib_node_t* mpls_tunnel_fib_node_get ( fib_node_index_t index )

static

Function definition to get a FIB node from its index.

Definition at line 757 of file mpls_tunnel.c.

static void mpls_tunnel_fixup	(	vlib_main_t *	vm,
		ip_adjacency_t *	adj,
		vlib_buffer_t *	b0
	)

static

Fixup the adj rewrite post encap.

This is a no-op since the rewrite is a stack of labels.

Definition at line 265 of file mpls_tunnel.c.

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static mpls_tunnel_t* mpls_tunnel_from_fib_node ( fib_node_t * node )

static

Definition at line 732 of file mpls_tunnel.c.

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const mpls_tunnel_t* mpls_tunnel_get ( u32 mti )

Definition at line 410 of file mpls_tunnel.c.

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static mpls_tunnel_t* mpls_tunnel_get_from_sw_if_index ( u32 sw_if_index )

static

Get a tunnel object from a SW interface index.

Definition at line 44 of file mpls_tunnel.c.

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static fib_forward_chain_type_t mpls_tunnel_get_fwd_chain_type ( const mpls_tunnel_t * mt )

static

Return true if the label stack is imp-null only.

Definition at line 58 of file mpls_tunnel.c.

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static clib_error_t* mpls_tunnel_init ( vlib_main_t * vm )

static

Definition at line 790 of file mpls_tunnel.c.

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static void mpls_tunnel_last_lock_gone ( fib_node_t * node )

static

Function definition to inform the FIB node that its last lock has gone.

Definition at line 770 of file mpls_tunnel.c.

static void mpls_tunnel_restack ( mpls_tunnel_t * mt )

static

Definition at line 218 of file mpls_tunnel.c.

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static void mpls_tunnel_stack ( adj_index_t ai )

static

mpls_tunnel_stack

'stack' (resolve the recursion for) the tunnel's midchain adjacency

Definition at line 152 of file mpls_tunnel.c.

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

static

TX function.

Only called L2. L3 traffic uses the adj-midchains

Definition at line 329 of file mpls_tunnel.c.

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static void mpls_tunnel_update_adj	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		adj_index_t	ai
	)

static

Definition at line 272 of file mpls_tunnel.c.

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void mpls_tunnel_walk	(	mpls_tunnel_walk_cb_t	cb,
		void *	ctx
	)

Walk all the MPLS tunnels.

Definition at line 419 of file mpls_tunnel.c.

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

static

Definition at line 669 of file mpls_tunnel.c.

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

static

Definition at line 527 of file mpls_tunnel.c.

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VNET_DEVICE_CLASS ( mpls_tunnel_class )

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VNET_HW_INTERFACE_CLASS ( mpls_tunnel_hw_interface_class )

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void vnet_mpls_tunnel_add	(	fib_route_path_t *	rpaths,
		mpls_label_t *	label_stack,
		u8	l2_only,
		u32 *	sw_if_index
	)

Create a new MPLS tunnel.

Definition at line 453 of file mpls_tunnel.c.

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void vnet_mpls_tunnel_del ( u32 sw_if_index )

Definition at line 431 of file mpls_tunnel.c.

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Variable Documentation

vlib_cli_command_t create_mpls_tunnel_command

static

Initial value:

= {
  .path = "mpls tunnel",
  .short_help = 
  "mpls tunnel via [addr] [interface] [out-labels]",
  .function = vnet_create_mpls_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (create_mpls_tunnel_command)

Definition at line 639 of file mpls_tunnel.c.

u32* mpls_tunnel_db

static

DB of SW index to tunnel index.

Definition at line 38 of file mpls_tunnel.c.

u32* mpls_tunnel_free_hw_if_indices

static

Pool of free tunnel SW indices - i.e.

recycled indices

Definition at line 33 of file mpls_tunnel.c.

mpls_tunnel_t* mpls_tunnel_pool

static

pool of tunnel instances

Definition at line 28 of file mpls_tunnel.c.

const fib_node_vft_t mpls_vft

static

Initial value:

= {
    .fnv_get = mpls_tunnel_fib_node_get,
    .fnv_last_lock = mpls_tunnel_last_lock_gone,
    .fnv_back_walk = mpls_tunnel_back_walk,
}

Definition at line 783 of file mpls_tunnel.c.

vlib_cli_command_t show_mpls_tunnel_command

static

Initial value:

= {
    .path = "show mpls tunnel",
    .function = show_mpls_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_mpls_tunnel_command)

Definition at line 726 of file mpls_tunnel.c.

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

Function Documentation

Variable Documentation