1 /* net/atm/atmarp.h - RFC1577 ATM ARP */
2
3 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
4
5
6 #ifndef _ATMCLIP_H
7 #define _ATMCLIP_H
8
9 #include <linux/netdevice.h>
10 #include <linux/skbuff.h>
11 #include <linux/atm.h>
12 #include <linux/atmdev.h>
13 #include <linux/atmarp.h>
14 #include <linux/spinlock.h>
15 #include <net/neighbour.h>
16
17
18 #define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))
19 #define NEIGH2ENTRY(neigh) ((struct atmarp_entry *) (neigh)->primary_key)
20
21
22 struct clip_vcc {
23 struct atm_vcc *vcc; /* VCC descriptor */
24 struct atmarp_entry *entry; /* ATMARP table entry, NULL if IP addr.
25 isn't known yet */
26 int xoff; /* 1 if send buffer is full */
27 unsigned char encap; /* 0: NULL, 1: LLC/SNAP */
28 unsigned long last_use; /* last send or receive operation */
29 unsigned long idle_timeout; /* keep open idle for so many jiffies*/
30 void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
31 /* keep old push fn for chaining */
32 void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
33 /* keep old pop fn for chaining */
34 struct clip_vcc *next; /* next VCC */
35 };
36
37
38 struct atmarp_entry {
39 u32 ip; /* IP address */
40 struct clip_vcc *vccs; /* active VCCs; NULL if resolution is
41 pending */
42 unsigned long expires; /* entry expiration time */
43 struct neighbour *neigh; /* neighbour back-pointer */
44 };
45
46
47 #define PRIV(dev) ((struct clip_priv *) ((struct net_device *) (dev)+1))
48
49
50 struct clip_priv {
51 int number; /* for convenience ... */
52 spinlock_t xoff_lock; /* ensures that pop is atomic (SMP) */
53 struct net_device_stats stats;
54 struct net_device *next; /* next CLIP interface */
55 };
56
57
58 extern struct atm_vcc *atmarpd; /* ugly */
59 extern struct neigh_table clip_tbl;
60
61 int clip_create(int number);
62 int clip_mkip(struct atm_vcc *vcc,int timeout);
63 int clip_setentry(struct atm_vcc *vcc,u32 ip);
64 int clip_encap(struct atm_vcc *vcc,int mode);
65 void atm_clip_init(void);
66
67 #endif
68
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.