gre.h File Reference

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Data Structures
struct	gre_protocol_info_t
	A GRE payload protocol registration. More...
struct	gre_tunnel_t
	A representation of a GRE tunnel. More...
struct	gre_main_t
	GRE related global data. More...
struct	vnet_gre_add_del_tunnel_args_t

Macros
#define	gre_error(n, s)   GRE_ERROR_##n,
#define	GRE_TUNNEL_TYPE_NAMES
#define	GRE_TUNNEL_N_TYPES   ((gre_tunnel_type_t)GRE_TUNNEL_TYPE_TEB+1)
#define	GRE_OUTPUT_NEXT_LOOKUP   1

Typedefs
typedef enum gre_tunnel_tyoe_t_	gre_tunnel_type_t
	The GRE tunnel type. More...

Enumerations
enum	gre_error_t { GRE_N_ERROR }
enum	gre_tunnel_tyoe_t_ { GRE_TUNNEL_TYPE_L3, GRE_TUNNEL_TYPE_TEB }
	The GRE tunnel type. More...

Functions
typedef	CLIB_PACKED (struct{ip4_header_t ip4;gre_header_t gre;}) ip4_and_gre_header_t
	IPv4 and GRE header. More...
typedef	CLIB_PACKED (struct{ip6_header_t ip6;gre_header_t gre;}) ip6_and_gre_header_t
	IPv6 and GRE header. More...
static gre_protocol_info_t *	gre_get_protocol_info (gre_main_t *em, gre_protocol_t protocol)
void	gre_register_input_type (vlib_main_t *vm, gre_protocol_t protocol, u32 node_index)
clib_error_t *	gre_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
void	gre_tunnel_stack (adj_index_t ai)
	gre_tunnel_stack More...
void	gre_update_adj (vnet_main_t *vnm, u32 sw_if_index, adj_index_t ai)
void	gre_register_input_protocol (vlib_main_t *vm, gre_protocol_t protocol, u32 node_index)
int	vnet_gre_add_del_tunnel (vnet_gre_add_del_tunnel_args_t *a, u32 *sw_if_indexp)

Variables
vnet_hw_interface_class_t	gre_hw_interface_class
gre_main_t	gre_main
format_function_t	format_gre_protocol
format_function_t	format_gre_header
format_function_t	format_gre_header_with_length
vlib_node_registration_t	gre4_input_node
	(constructor) VLIB_REGISTER_NODE (gre4_input_node) More...
vlib_node_registration_t	gre6_input_node
	(constructor) VLIB_REGISTER_NODE (gre6_input_node) More...
vnet_device_class_t	gre_device_class
vnet_device_class_t	gre_device_teb_class
unformat_function_t	unformat_gre_protocol_host_byte_order
unformat_function_t	unformat_gre_protocol_net_byte_order
unformat_function_t	unformat_gre_header
unformat_function_t	unformat_pg_gre_header

Macro Definition Documentation

#define gre_error	(		n,
			s
	)		GRE_ERROR_##n,

Definition at line 31 of file gre.h.

#define GRE_OUTPUT_NEXT_LOOKUP   1

Definition at line 239 of file gre.h.

#define GRE_TUNNEL_N_TYPES   ((gre_tunnel_type_t)GRE_TUNNEL_TYPE_TEB+1)

Definition at line 74 of file gre.h.

#define GRE_TUNNEL_TYPE_NAMES

Value:

{    \
    [GRE_TUNNEL_TYPE_L3] = "L3",   \
    [GRE_TUNNEL_TYPE_TEB] = "TEB", \
}

Definition at line 69 of file gre.h.

Typedef Documentation

typedef enum gre_tunnel_tyoe_t_ gre_tunnel_type_t

The GRE tunnel type.

Enumeration Type Documentation

enum gre_error_t

Enumerator
GRE_N_ERROR

Definition at line 30 of file gre.h.

enum gre_tunnel_tyoe_t_

The GRE tunnel type.

Enumerator
GRE_TUNNEL_TYPE_L3	L3 GRE (i.e. this tunnel is in L3 mode)
GRE_TUNNEL_TYPE_TEB	Transparent Ethernet Bridging - the tunnel is in L2 mode.

Definition at line 57 of file gre.h.

Function Documentation

typedef CLIB_PACKED

(

struct{ip4_header_t ip4;gre_header_t gre;}

)

IPv4 and GRE header.

typedef CLIB_PACKED

(

struct{ip6_header_t ip6;gre_header_t gre;}

)

IPv6 and GRE header.

static gre_protocol_info_t* gre_get_protocol_info ( gre_main_t *  em, gre_protocol_t  protocol  )

inlinestatic

Definition at line 192 of file gre.h.

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clib_error_t* gre_interface_admin_up_down	(	vnet_main_t *	vnm,
		u32	hw_if_index,
		u32	flags
	)

Definition at line 504 of file interface.c.

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void gre_register_input_protocol	(	vlib_main_t *	vm,
		gre_protocol_t	protocol,
		u32	node_index
	)

Definition at line 618 of file node.c.

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void gre_register_input_type	(	vlib_main_t *	vm,
		gre_protocol_t	protocol,
		u32	node_index
	)

void gre_tunnel_stack

(

adj_index_t

ai

)

gre_tunnel_stack

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

Definition at line 169 of file interface.c.

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void gre_update_adj	(	vnet_main_t *	vnm,
		u32	sw_if_index,
		adj_index_t	ai
	)

Definition at line 286 of file gre.c.

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int vnet_gre_add_del_tunnel	(	vnet_gre_add_del_tunnel_args_t *	a,
		u32 *	sw_if_indexp
	)

Definition at line 494 of file interface.c.

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Variable Documentation

format_function_t format_gre_header

Definition at line 216 of file gre.h.

format_function_t format_gre_header_with_length

Definition at line 217 of file gre.h.

format_function_t format_gre_protocol

Definition at line 215 of file gre.h.

vlib_node_registration_t gre4_input_node

(constructor) VLIB_REGISTER_NODE (gre4_input_node)

Definition at line 570 of file node.c.

vlib_node_registration_t gre6_input_node

(constructor) VLIB_REGISTER_NODE (gre6_input_node)

Definition at line 591 of file node.c.

vnet_device_class_t gre_device_class

vnet_device_class_t gre_device_teb_class

vnet_hw_interface_class_t gre_hw_interface_class

gre_main_t gre_main

Definition at line 198 of file gre.h.

unformat_function_t unformat_gre_header

Definition at line 230 of file gre.h.

unformat_function_t unformat_gre_protocol_host_byte_order

Definition at line 226 of file gre.h.

unformat_function_t unformat_gre_protocol_net_byte_order

Definition at line 227 of file gre.h.

unformat_function_t unformat_pg_gre_header

Definition at line 231 of file gre.h.