^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* net/atm/atmarp.h - RFC1577 ATM ARP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #ifndef _ATMCLIP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define _ATMCLIP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/atm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/atmdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/atmarp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <net/neighbour.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct sk_buff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct clip_vcc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct atm_vcc *vcc; /* VCC descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct atmarp_entry *entry; /* ATMARP table entry, NULL if IP addr.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) isn't known yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) int xoff; /* 1 if send buffer is full */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) unsigned char encap; /* 0: NULL, 1: LLC/SNAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned long last_use; /* last send or receive operation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) unsigned long idle_timeout; /* keep open idle for so many jiffies*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* keep old push fn for chaining */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /* keep old pop fn for chaining */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct clip_vcc *next; /* next VCC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct atmarp_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct clip_vcc *vccs; /* active VCCs; NULL if resolution is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) pending */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned long expires; /* entry expiration time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct neighbour *neigh; /* neighbour back-pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define PRIV(dev) ((struct clip_priv *) netdev_priv(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct clip_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int number; /* for convenience ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) spinlock_t xoff_lock; /* ensures that pop is atomic (SMP) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct net_device *next; /* next CLIP interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif