acd.h File Reference

Go to the source code of this file.

Macros
#define	PROBE_WAIT   1 /* second (initial random delay) */
#define	PROBE_MIN   1 /* second (minimum delay till repeated probe) */
#define	PROBE_MAX   2 /* seconds (maximum delay till repeated probe) */
#define	PROBE_NUM   3 /* (number of probe packets) */
#define	ANNOUNCE_NUM   2 /* (number of announcement packets) */
#define	ANNOUNCE_INTERVAL   2 /* seconds (time between announcement packets) */
#define	ANNOUNCE_WAIT   2 /* seconds (delay before announcing) */
#define	MAX_CONFLICTS   10 /* (max conflicts before rate limiting) */
#define	RATE_LIMIT_INTERVAL   60 /* seconds (delay between successive attempts) */
#define	DEFEND_INTERVAL   10 /* seconds (minimum interval between defensive ARPs) */

Enumerations
enum	acd_state_enum_t {   ACD_STATE_OFF , ACD_STATE_PROBE_WAIT , ACD_STATE_PROBING , ACD_STATE_ANNOUNCE_WAIT ,   ACD_STATE_ANNOUNCING , ACD_STATE_ONGOING , ACD_STATE_PASSIVE_ONGOING , ACD_STATE_RATE_LIMIT }
enum	acd_callback_enum_t { ACD_IP_OK , ACD_RESTART_CLIENT , ACD_DECLINE }

Detailed Description

ACD protocol definitions

Definition in file acd.h.

Macro Definition Documentation

ANNOUNCE_INTERVAL

#define ANNOUNCE_INTERVAL   2 /* seconds (time between announcement packets) */

Definition at line 51 of file acd.h.

ANNOUNCE_NUM

#define ANNOUNCE_NUM   2 /* (number of announcement packets) */

Definition at line 50 of file acd.h.

ANNOUNCE_WAIT

#define ANNOUNCE_WAIT   2 /* seconds (delay before announcing) */

Definition at line 52 of file acd.h.

DEFEND_INTERVAL

#define DEFEND_INTERVAL   10 /* seconds (minimum interval between defensive ARPs) */

Definition at line 55 of file acd.h.

MAX_CONFLICTS

#define MAX_CONFLICTS   10 /* (max conflicts before rate limiting) */

Definition at line 53 of file acd.h.

PROBE_MAX

#define PROBE_MAX   2 /* seconds (maximum delay till repeated probe) */

Definition at line 48 of file acd.h.

PROBE_MIN

#define PROBE_MIN   1 /* second (minimum delay till repeated probe) */

Definition at line 47 of file acd.h.

PROBE_NUM

#define PROBE_NUM   3 /* (number of probe packets) */

Definition at line 49 of file acd.h.

PROBE_WAIT

#define PROBE_WAIT   1 /* second (initial random delay) */

Definition at line 46 of file acd.h.

RATE_LIMIT_INTERVAL

#define RATE_LIMIT_INTERVAL   60 /* seconds (delay between successive attempts) */

Definition at line 54 of file acd.h.

Enumeration Type Documentation

acd_callback_enum_t

enum acd_callback_enum_t

Enumerator
ACD_IP_OK
ACD_RESTART_CLIENT
ACD_DECLINE

Definition at line 81 of file acd.h.

             {
  ACD_IP_OK,            /* IP address is good, no conflicts found in checking state */
  ACD_RESTART_CLIENT,   /* Conflict found -> the client should try again */
  ACD_DECLINE           /* Decline the received IP address (rate limiting)*/
} acd_callback_enum_t;

acd_state_enum_t

enum acd_state_enum_t

Enumerator
ACD_STATE_OFF
ACD_STATE_PROBE_WAIT
ACD_STATE_PROBING
ACD_STATE_ANNOUNCE_WAIT
ACD_STATE_ANNOUNCING
ACD_STATE_ONGOING
ACD_STATE_PASSIVE_ONGOING
ACD_STATE_RATE_LIMIT

Definition at line 58 of file acd.h.

             {
  /* ACD is module is off */
  ACD_STATE_OFF,
  /* Waiting before probing can be started */
  ACD_STATE_PROBE_WAIT,
  /* Probing the ipaddr */
  ACD_STATE_PROBING,
  /* Waiting before announcing the probed ipaddr */
  ACD_STATE_ANNOUNCE_WAIT,
  /* Announcing the new ipaddr */
  ACD_STATE_ANNOUNCING,
  /* Performing ongoing conflict detection with one defend within defend inferval */
  ACD_STATE_ONGOING,
  /* Performing ongoing conflict detection but immediately back off and Release
   * the address when a conflict occurs. This state is used for LL addresses
   * that stay active even if the netif has a routable address selected.
   * In such a case, we cannot defend our address */
  ACD_STATE_PASSIVE_ONGOING,
  /* To many conflicts occurred, we need to wait before restarting the selection
   * process */
  ACD_STATE_RATE_LIMIT
} acd_state_enum_t;