68 lines
1.9 KiB
C
Executable File
68 lines
1.9 KiB
C
Executable File
/* net/atm/atmarp.h - RFC1577 ATM ARP */
|
|
|
|
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
|
|
|
|
|
|
#ifndef _ATMCLIP_H
|
|
#define _ATMCLIP_H
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/atm.h>
|
|
#include <linux/atmdev.h>
|
|
#include <linux/atmarp.h>
|
|
#include <linux/spinlock.h>
|
|
#include <net/neighbour.h>
|
|
|
|
|
|
#define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))
|
|
#define NEIGH2ENTRY(neigh) ((struct atmarp_entry *) (neigh)->primary_key)
|
|
|
|
|
|
struct clip_vcc {
|
|
struct atm_vcc *vcc; /* VCC descriptor */
|
|
struct atmarp_entry *entry; /* ATMARP table entry, NULL if IP addr.
|
|
isn't known yet */
|
|
int xoff; /* 1 if send buffer is full */
|
|
unsigned char encap; /* 0: NULL, 1: LLC/SNAP */
|
|
unsigned long last_use; /* last send or receive operation */
|
|
unsigned long idle_timeout; /* keep open idle for so many jiffies*/
|
|
void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
|
|
/* keep old push fn for chaining */
|
|
void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
|
|
/* keep old pop fn for chaining */
|
|
struct clip_vcc *next; /* next VCC */
|
|
};
|
|
|
|
|
|
struct atmarp_entry {
|
|
u32 ip; /* IP address */
|
|
struct clip_vcc *vccs; /* active VCCs; NULL if resolution is
|
|
pending */
|
|
unsigned long expires; /* entry expiration time */
|
|
struct neighbour *neigh; /* neighbour back-pointer */
|
|
};
|
|
|
|
|
|
#define PRIV(dev) ((struct clip_priv *) ((struct net_device *) (dev)+1))
|
|
|
|
|
|
struct clip_priv {
|
|
int number; /* for convenience ... */
|
|
spinlock_t xoff_lock; /* ensures that pop is atomic (SMP) */
|
|
struct net_device_stats stats;
|
|
struct net_device *next; /* next CLIP interface */
|
|
};
|
|
|
|
|
|
extern struct atm_vcc *atmarpd; /* ugly */
|
|
extern struct neigh_table clip_tbl;
|
|
|
|
int clip_create(int number);
|
|
int clip_mkip(struct atm_vcc *vcc,int timeout);
|
|
int clip_setentry(struct atm_vcc *vcc,u32 ip);
|
|
int clip_encap(struct atm_vcc *vcc,int mode);
|
|
void atm_clip_init(void);
|
|
|
|
#endif
|