interface.c File Reference

Common utility functions for LISP-GPE interfaces. More...

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Data Structures
struct	lisp_gpe_tx_trace_t
struct	l2_lisp_gpe_tx_trace_t
struct	nsh_lisp_gpe_tx_trace_t

Macros
#define	foreach_lisp_gpe_tx_next
#define	is_v4_packet(_h)   ((*(u8*) _h) & 0xF0) == 0x40

Enumerations
enum	lisp_gpe_tx_next_t { LISP_GPE_TX_N_NEXT }

Functions
u8 *	format_lisp_gpe_tx_trace (u8 *s, va_list *args)
static uword	lisp_gpe_interface_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	LISP-GPE interface TX (encap) function. More...
static u8 *	format_lisp_gpe_name (u8 *s, va_list *args)
	VNET_DEVICE_CLASS (lisp_gpe_device_class)
u8 *	format_lisp_gpe_header_with_length (u8 *s, va_list *args)
	VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class)
static u8 *	format_l2_lisp_gpe_tx_trace (u8 *s, va_list *args)
static uword	l2_lisp_gpe_interface_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	LISP-GPE interface TX (encap) function for L2 overlays. More...
static u8 *	format_l2_lisp_gpe_name (u8 *s, va_list *args)
	VNET_DEVICE_CLASS (l2_lisp_gpe_device_class, static)
u8 *	format_nsh_lisp_gpe_tx_trace (u8 *s, va_list *args)
static uword	nsh_lisp_gpe_interface_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	LISP-GPE interface TX for NSH overlays. More...
static u8 *	format_nsh_lisp_gpe_name (u8 *s, va_list *args)
	VNET_DEVICE_CLASS (nsh_lisp_gpe_device_class, static)
static vnet_hw_interface_t *	lisp_gpe_create_iface (lisp_gpe_main_t *lgm, u32 vni, u32 dp_table, vnet_device_class_t *dev_class, tunnel_lookup_t *tuns)
static void	lisp_gpe_remove_iface (lisp_gpe_main_t *lgm, u32 hi_index, u32 dp_table, tunnel_lookup_t *tuns)
static void	lisp_gpe_iface_set_table (u32 sw_if_index, u32 table_id)
static void	lisp_gpe_tenant_del_default_routes (u32 table_id)
static void	lisp_gpe_tenant_add_default_routes (u32 table_id)
u32	lisp_gpe_add_l3_iface (lisp_gpe_main_t *lgm, u32 vni, u32 table_id, u8 with_default_routes)
	Add/del LISP-GPE L3 interface. More...
void	lisp_gpe_del_l3_iface (lisp_gpe_main_t *lgm, u32 vni, u32 table_id)
u32	lisp_gpe_add_l2_iface (lisp_gpe_main_t *lgm, u32 vni, u32 bd_id)
	Add/del LISP-GPE L2 interface. More...
void	lisp_gpe_del_l2_iface (lisp_gpe_main_t *lgm, u32 vni, u32 bd_id)
	Add/del LISP-GPE L2 interface. More...
u32	vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t *lgm)
	Add LISP-GPE NSH interface. More...
void	vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t *lgm)
	Del LISP-GPE NSH interface. More...
static clib_error_t *	lisp_gpe_add_del_iface_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
static uword	l2_arc_to_lb
	The VLIB node arc/edge from the interface's TX node, to the L2 load-balanceing node. More...
static vlib_cli_command_t	add_del_lisp_gpe_iface_command
	(constructor) VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command) More...

Detailed Description

Common utility functions for LISP-GPE interfaces.

Definition in file interface.c.

Macro Definition Documentation

#define foreach_lisp_gpe_tx_next

Value:

_(DROP, "error-drop")                 \
  _(IP4_LOOKUP, "ip4-lookup")           \
  _(IP6_LOOKUP, "ip6-lookup")

Definition at line 44 of file interface.c.

#define is_v4_packet

(

_h

)

((*(u8*) _h) & 0xF0) == 0x40

Definition at line 73 of file interface.c.

Enumeration Type Documentation

enum lisp_gpe_tx_next_t

Enumerator
LISP_GPE_TX_N_NEXT

Definition at line 49 of file interface.c.

Function Documentation

static u8* format_l2_lisp_gpe_name ( u8 *  s, va_list *  args  )

static

Definition at line 299 of file interface.c.

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static u8* format_l2_lisp_gpe_tx_trace ( u8 *  s, va_list *  args  )

static

Definition at line 209 of file interface.c.

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

Definition at line 171 of file interface.c.

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

static

Definition at line 155 of file interface.c.

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

Definition at line 63 of file interface.c.

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

static

Definition at line 403 of file interface.c.

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

Definition at line 320 of file interface.c.

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static uword l2_lisp_gpe_interface_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

LISP-GPE interface TX (encap) function for L2 overlays.

Node Identifier:

l2_lisp_gpe_interface_tx

The L2 LISP-GPE interface TX (encap) function.

Uses bridge domain index, source and destination ethernet addresses to lookup tunnel. If the tunnel is multihomed a flow has is used to determine the sub-tunnel and therefore the rewrite string to be used to encapsulate the packets.

Parameters

[in]	vm	vlib_main_t corresponding to the current thread.
[in]	node	vlib_node_runtime_t data for this node.
[in]	frame	vlib_frame_t whose contents should be dispatched.

Returns

number of vectors in frame.

Definition at line 237 of file interface.c.

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

static

Definition at line 810 of file interface.c.

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u32 lisp_gpe_add_l2_iface	(	lisp_gpe_main_t *	lgm,
		u32	vni,
		u32	bd_id
	)

Add/del LISP-GPE L2 interface.

Creates LISP-GPE interface, sets it in L2 mode in the appropriate bridge domain, sets egress arcs and enables it.

Parameters

[in]	lgm	Reference to lisp_gpe_main_t.
[in]	a	Parameters to create interface.

Returns

number of vectors in frame.

Definition at line 657 of file interface.c.

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u32 lisp_gpe_add_l3_iface	(	lisp_gpe_main_t *	lgm,
		u32	vni,
		u32	table_id,
		u8	with_default_routes
	)

Add/del LISP-GPE L3 interface.

Creates LISP-GPE interface, sets ingress arcs from lisp_gpeX_lookup, installs default routes that attract all traffic with no more specific routes to lgpe-ipx-lookup, set egress arcs to ipx-lookup, sets the interface in the right vrf and enables it.

Parameters

[in]	lgm	Reference to lisp_gpe_main_t.
[in]	a	Parameters to create interface.

Returns

number of vectors in frame.

Definition at line 578 of file interface.c.

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static vnet_hw_interface_t* lisp_gpe_create_iface ( lisp_gpe_main_t *  lgm, u32  vni, u32  dp_table, vnet_device_class_t *  dev_class, tunnel_lookup_t *  tuns  )

static

Definition at line 419 of file interface.c.

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void lisp_gpe_del_l2_iface	(	lisp_gpe_main_t *	lgm,
		u32	vni,
		u32	bd_id
	)

Add/del LISP-GPE L2 interface.

Add/del LISP-GPE interface.

Creates LISP-GPE interface, sets it in L2 mode in the appropriate bridge domain, sets egress arcs and enables it.

Parameters

[in]	lgm	Reference to lisp_gpe_main_t.
[in]	a	Parameters to create interface.

Returns

number of vectors in frame.

Definition at line 720 of file interface.c.

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void lisp_gpe_del_l3_iface	(	lisp_gpe_main_t *	lgm,
		u32	vni,
		u32	table_id
	)

Definition at line 620 of file interface.c.

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static void lisp_gpe_iface_set_table ( u32  sw_if_index, u32  table_id  )

static

Definition at line 504 of file interface.c.

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static uword lisp_gpe_interface_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

LISP-GPE interface TX (encap) function.

Node Identifier:

lisp_gpe_interface_tx

The LISP-GPE interface TX (encap) function.

Looks up the associated tunnel based on the adjacency hit in the SD FIB and if the tunnel is multihomed it uses the flow hash to determine sub-tunnel, and rewrite string, to be used to encapsulate the packet.

Parameters

[in]	vm	vlib_main_t corresponding to the current thread.
[in]	node	vlib_node_runtime_t data for this node.
[in]	frame	vlib_frame_t whose contents should be dispatched.

Returns

number of vectors in frame.

Definition at line 92 of file interface.c.

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static void lisp_gpe_remove_iface ( lisp_gpe_main_t *  lgm, u32  hi_index, u32  dp_table, tunnel_lookup_t *  tuns  )

static

Definition at line 477 of file interface.c.

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static void lisp_gpe_tenant_add_default_routes ( u32  table_id )

static

Definition at line 540 of file interface.c.

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static void lisp_gpe_tenant_del_default_routes ( u32  table_id )

static

Definition at line 522 of file interface.c.

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static uword nsh_lisp_gpe_interface_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

LISP-GPE interface TX for NSH overlays.

Node Identifier:

nsh_lisp_gpe_interface_tx

The NSH LISP-GPE interface TX function.

Parameters

[in]	vm	vlib_main_t corresponding to the current thread.
[in]	node	vlib_node_runtime_t data for this node.
[in]	frame	vlib_frame_t whose contents should be dispatched.

Returns

number of vectors in frame.

Definition at line 343 of file interface.c.

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VNET_DEVICE_CLASS

(

lisp_gpe_device_class

)

VNET_DEVICE_CLASS	(	l2_lisp_gpe_device_class	,
		static
	)

VNET_DEVICE_CLASS	(	nsh_lisp_gpe_device_class	,
		static
	)

VNET_HW_INTERFACE_CLASS

(

lisp_gpe_hw_class

)

u32 vnet_lisp_gpe_add_nsh_iface

(

lisp_gpe_main_t *

lgm

)

Add LISP-GPE NSH interface.

Creates LISP-GPE interface, sets it in L3 mode.

Parameters

[in]	lgm	Reference to lisp_gpe_main_t.
[in]	a	Parameters to create interface.

Returns

sw_if_index.

Definition at line 754 of file interface.c.

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void vnet_lisp_gpe_del_nsh_iface

(

lisp_gpe_main_t *

lgm

)

Del LISP-GPE NSH interface.

Definition at line 794 of file interface.c.

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Variable Documentation

vlib_cli_command_t add_del_lisp_gpe_iface_command

static

Initial value:

= {
  .path = "gpe iface",
  .short_help = "gpe iface add/del vni <vni> vrf <vrf>",
  .function = lisp_gpe_add_del_iface_command_fn,
}

(constructor) VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command)

Definition at line 932 of file interface.c.

uword l2_arc_to_lb

static

The VLIB node arc/edge from the interface's TX node, to the L2 load-balanceing node.

Which is where all packets go

Definition at line 42 of file interface.c.