You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
4.4 KiB
93 lines
4.4 KiB
20 years ago
|
/*
|
||
|
|
* Lec arp cache
|
||
|
|
* Marko Kiiskila mkiiskila@yahoo.com
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#ifndef _LEC_ARP_H
|
||
|
|
#define _LEC_ARP_H
|
||
|
|
#include <linux/atm.h>
|
||
|
|
#include <linux/atmdev.h>
|
||
|
|
#include <linux/if_ether.h>
|
||
|
|
#include <linux/atmlec.h>
|
||
|
|
|
||
|
|
struct lec_arp_table {
|
||
|
|
struct lec_arp_table *next; /* Linked entry list */
|
||
|
|
unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */
|
||
|
|
unsigned char mac_addr[ETH_ALEN]; /* Mac address */
|
||
|
|
int is_rdesc; /* Mac address is a route descriptor */
|
||
|
|
struct atm_vcc *vcc; /* Vcc this entry is attached */
|
||
|
|
struct atm_vcc *recv_vcc; /* Vcc we receive data from */
|
||
|
|
void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
|
||
|
|
/* Push that leads to daemon */
|
||
|
|
void (*old_recv_push)(struct atm_vcc *vcc, struct sk_buff *skb);
|
||
|
|
/* Push that leads to daemon */
|
||
|
|
void (*old_close)(struct atm_vcc *vcc);
|
||
|
|
/* We want to see when this
|
||
|
|
* vcc gets closed */
|
||
|
|
unsigned long last_used; /* For expiry */
|
||
|
|
unsigned long timestamp; /* Used for various timestamping
|
||
|
|
* things:
|
||
|
|
* 1. FLUSH started
|
||
|
|
* (status=ESI_FLUSH_PENDING)
|
||
|
|
* 2. Counting to
|
||
|
|
* max_unknown_frame_time
|
||
|
|
* (status=ESI_ARP_PENDING||
|
||
|
|
* status=ESI_VC_PENDING)
|
||
|
|
*/
|
||
|
|
unsigned char no_tries; /* No of times arp retry has been
|
||
|
|
tried */
|
||
|
|
unsigned char status; /* Status of this entry */
|
||
|
|
unsigned short flags; /* Flags for this entry */
|
||
|
|
unsigned short packets_flooded; /* Data packets flooded */
|
||
|
|
unsigned long flush_tran_id; /* Transaction id in flush protocol */
|
||
|
|
struct timer_list timer; /* Arping timer */
|
||
|
|
struct lec_priv *priv; /* Pointer back */
|
||
|
|
|
||
|
|
u8 *tlvs; /* LANE2: Each MAC address can have TLVs */
|
||
|
|
u32 sizeoftlvs; /* associated with it. sizeoftlvs tells the */
|
||
|
|
/* the length of the tlvs array */
|
||
|
|
struct sk_buff_head tx_wait; /* wait queue for outgoing packets */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tlv { /* LANE2: Template tlv struct for accessing */
|
||
|
|
/* the tlvs in the lec_arp_table->tlvs array*/
|
||
|
|
u32 type;
|
||
|
|
u8 length;
|
||
|
|
u8 value[255];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Status fields */
|
||
|
|
#define ESI_UNKNOWN 0 /*
|
||
|
|
* Next packet sent to this mac address
|
||
|
|
* causes ARP-request to be sent
|
||
|
|
*/
|
||
|
|
#define ESI_ARP_PENDING 1 /*
|
||
|
|
* There is no ATM address associated with this
|
||
|
|
* 48-bit address. The LE-ARP protocol is in
|
||
|
|
* progress.
|
||
|
|
*/
|
||
|
|
#define ESI_VC_PENDING 2 /*
|
||
|
|
* There is a valid ATM address associated with
|
||
|
|
* this 48-bit address but there is no VC set
|
||
|
|
* up to that ATM address. The signaling
|
||
|
|
* protocol is in process.
|
||
|
|
*/
|
||
|
|
#define ESI_FLUSH_PENDING 4 /*
|
||
|
|
* The LEC has been notified of the FLUSH_START
|
||
|
|
* status and it is assumed that the flush
|
||
|
|
* protocol is in process.
|
||
|
|
*/
|
||
|
|
#define ESI_FORWARD_DIRECT 5 /*
|
||
|
|
* Either the Path Switching Delay (C22) has
|
||
|
|
* elapsed or the LEC has notified the Mapping
|
||
|
|
* that the flush protocol has completed. In
|
||
|
|
* either case, it is safe to forward packets
|
||
|
|
* to this address via the data direct VC.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Flag values */
|
||
|
|
#define LEC_REMOTE_FLAG 0x0001
|
||
|
|
#define LEC_PERMANENT_FLAG 0x0002
|
||
|
|
|
||
|
|
#endif
|