int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype, struct net_device *orig_dev)
{
struct sk_buff *nskb;
struct x25_neigh *nb;
if (!net_eq(dev_net(dev), &init_net))
goto drop;
nskb = skb_copy(skb, GFP_ATOMIC);
if (!nskb)
goto drop;
kfree_skb(skb);
skb = nskb;
/*
*/
nb = x25_get_neigh(dev);
if (!nb) {
printk(KERN_DEBUG "X.25: unknown neighbour - %s\n", dev->name);
goto drop;
}
if (!pskb_may_pull(skb, 1))
return 0;
switch (skb->data[0]) {
case X25_IFACE_DATA:
skb_pull(skb, 1);
if (x25_receive_data(skb, nb)) {
x25_neigh_put(nb);
goto out;
}
break;
case X25_IFACE_CONNECT:
x25_link_established(nb);
break;
case X25_IFACE_DISCONNECT:
x25_link_terminated(nb);
break;
}
x25_neigh_put(nb);
drop:
kfree_skb(skb);
out:
return 0;
}
int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev, struct packet_type *ptype)
{
struct x25_neigh *neigh;
int queued;
skb->sk = NULL;
/*
* Packet received from unrecognised device, throw it away.
*/
if ((neigh = x25_get_neigh(dev)) == NULL) {
printk(KERN_DEBUG "X.25: unknown neighbour - %s\n", dev->name);
kfree_skb(skb);
return 0;
}
switch (skb->data[0]) {
case 0x00:
skb_pull(skb, 1);
queued = x25_receive_data(skb, neigh);
if( ! queued )
/* We need to free the skb ourselves because
* net_bh() won't care about our return code.
*/
kfree_skb(skb);
return 0;
case 0x01:
x25_link_established(neigh);
kfree_skb(skb);
return 0;
case 0x02:
x25_link_terminated(neigh);
kfree_skb(skb);
return 0;
case 0x03:
kfree_skb(skb);
return 0;
default:
kfree_skb(skb);
return 0;
}
}
int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype, struct net_device *orig_dev)
{
struct sk_buff *nskb;
struct x25_neigh *nb;
if (!net_eq(dev_net(dev), &init_net))
goto drop;
nskb = skb_copy(skb, GFP_ATOMIC);
if (!nskb)
goto drop;
kfree_skb(skb);
skb = nskb;
/*
* Packet received from unrecognised device, throw it away.
*/
nb = x25_get_neigh(dev);
if (!nb) {
printk(KERN_DEBUG "X.25: unknown neighbour - %s\n", dev->name);
goto drop;
}
switch (skb->data[0]) {
case 0x00:
skb_pull(skb, 1);
if (x25_receive_data(skb, nb)) {
x25_neigh_put(nb);
goto out;
}
break;
case 0x01:
x25_link_established(nb);
break;
case 0x02:
x25_link_terminated(nb);
break;
}
x25_neigh_put(nb);
drop:
kfree_skb(skb);
out:
return 0;
}
