mapme.h File Reference

Mapme. More...

#include <vnet/dpo/load_balance.h>
#include <vnet/buffer.h>
#include <hicn/mapme.h>
#include "hicn.h"
#include "route.h"
#include "strategy_dpo_ctx.h"
#include "strategy_dpo_manager.h"

Include dependency graph for mapme.h:

Go to the source code of this file.

Classes
struct	hicn_mapme_conf_s

Macros
#define	HICN_MAPME_ALLOW_LOCATORS   1
#define	NOT_A_NOTIFICATION   false
#define	TIMER_NO_REPEAT   false
#define	INVALID_SEQ   0
#define	foreach_hicn_mapme_event
	List of event to signat to the procesing node (eventmgr) More...
#define	_(a)   HICN_MAPME_EVENT_##a,
#define	TFIB(dpo_ctx)   ((hicn_mapme_tfib_t *) (dpo_ctx))
#define	DEBUG(...)
#define	WARN(...)
#define	ERROR(...)

Typedefs
typedef struct hicn_mapme_conf_s	hicn_mapme_main_t
typedef hicn_dpo_ctx_t	hicn_mapme_tfib_t

Enumerations
enum	hicn_mapme_event_t { foreach_hicn_mapme_event }

Functions
	STATIC_ASSERT (sizeof(u32)==sizeof(seq_t), "seq_t is not 4 bytes")
	STATIC_ASSERT (sizeof(hicn_mapme_tfib_t)<=sizeof(hicn_dpo_ctx_t), "hicn_mapme_tfib_t is greater than hicn_dpo_ctx_t")
static_always_inline int	hicn_mapme_nh_set (hicn_mapme_tfib_t *tfib, hicn_face_id_t face_id)
static_always_inline int	hicn_mapme_nh_add (hicn_mapme_tfib_t *tfib, hicn_face_id_t face_id)
	Add a next hop iif it is not already a next hops.
static_always_inline int	hicn_mapme_tfib_add (hicn_mapme_tfib_t *tfib, hicn_face_id_t face_id)
static_always_inline int	hicn_mapme_tfib_clear (hicn_mapme_tfib_t *tfib)
static_always_inline int	hicn_mapme_tfib_del (hicn_mapme_tfib_t *tfib, hicn_face_id_t face_id)
static_always_inline dpo_id_t *	fib_epm_lookup (ip46_address_t *addr, u8 plen)
	Performs an Exact Prefix Match lookup on the FIB. More...
always_inline u32	hicn_mapme_get_dpo_vlib_edge (dpo_id_t *dpo)
	Returns the next hop vlib edge on which we can send an Interest packet. More...
always_inline char *	hicn_mapme_get_dpo_face_node (hicn_face_id_t face_id)
	Returns the next hop node on which we can send an Update packet.

Variables
dpo_type_t	hicn_face_udp_type
dpo_type_t	hicn_face_ip_type
u32	strategy_face_ip4_vlib_edge
u32	strategy_face_ip6_vlib_edge
u32	strategy_face_udp4_vlib_edge
u32	strategy_face_udp6_vlib_edge

Detailed Description

Mapme.

Mapme implementation follows the "Anchorless mobility through hICN" document specification. In particular, the implementation is made of:

• two internal nodes: hicn-mapme-ctrl and hicn-mapme-ack. The former processes IU and the latter IU acknowledgment.
• a process node, mapme-eventmgr-process, that is signaled every time a face is added or deleted, as well as when a new next hop is added to a fib entry as a result of a mobility event.

TFIB implementation is done as an extension of an hICN fib entry. In particular, the list of next hops hold the list of next hops in the tfib as well (stored at the end of the list of regualt next hops). Mapme implementation follows the hICN vrf implementation and consider the vrf 0 (default fib) as the control-plane fib to update every time a new next hop must be added or removed.

Macro Definition Documentation

foreach_hicn_mapme_event

#define foreach_hicn_mapme_event

Value:

  _ (FACE_ADD)                                                                \
  _ (FACE_DEL)                                                                \
  _ (FACE_APP_ADD)                                                            \
  _ (FACE_APP_DEL)                                                            \
  _ (FACE_NH_SET)                                                             \
  _ (FACE_NH_ADD)                                                             \
  _ (FACE_PH_ADD)                                                             \
  _ (FACE_PH_DEL)

List of event to signat to the procesing node (eventmgr)

Function Documentation

fib_epm_lookup()

static_always_inline dpo_id_t* fib_epm_lookup	(	ip46_address_t *	addr,
		u8	plen
	)

Performs an Exact Prefix Match lookup on the FIB.

Returns

the corresponding DPO (hICN or IP LB), or NULL

hicn_mapme_get_dpo_vlib_edge()

always_inline u32 hicn_mapme_get_dpo_vlib_edge

(

dpo_id_t *

dpo

)

Returns the next hop vlib edge on which we can send an Interest packet.

This is both used to preprocess a dpo that will be stored as a next hop in the FIB, and to determine on which node to send an Interest Update.

hicn_mapme_tfib_add()

static_always_inline int hicn_mapme_tfib_add	(	hicn_mapme_tfib_t *	tfib,
		hicn_face_id_t	face_id
	)

Add a 'previous' hop to the TFIB

XXX we should have the for look in the reverse order for simpler code.