void hdlc_netif_rx(hdlc_device *hdlc, struct sk_buff *skb, int dlci)
{
skb->mac.raw=skb->data;
if (mode_is(hdlc, MODE_SOFT)) {
if (mode_is(hdlc, MODE_FR)) {
fr_netif(hdlc, skb);
return;
} else if (mode_is(hdlc, MODE_CISCO)) {
cisco_netif(hdlc, skb);
return;
} else if (mode_is(hdlc, MODE_PPP)) {
hdlc->stats.rx_bytes+=skb->len;
hdlc->stats.rx_packets++;
skb->protocol=htons(ETH_P_WAN_PPP);
skb->dev=hdlc_to_dev(hdlc);
netif_rx(skb);
return;
}
} else { /* protocol support in hardware/firmware */
hdlc->stats.rx_bytes+=skb->len;
hdlc->stats.rx_packets++;
if (mode_is(hdlc, MODE_HDLC))
skb->protocol=htons(ETH_P_IP);
/* otherwise protocol set by hw driver */
if (mode_is(hdlc, MODE_FR)) {
pvc_device *pvc=find_pvc(hdlc, dlci);
if (!pvc) { /* packet from nonexistent PVC */
hdlc->stats.rx_errors++;
dev_kfree_skb(skb);
}
pvc->stats.rx_bytes+=skb->len;
pvc->stats.rx_packets++;
skb->dev=&pvc->netdev;
} else
skb->dev=hdlc_to_dev(hdlc);
netif_rx(skb);
return;
}
hdlc->stats.rx_errors++; /* unsupported mode */
dev_kfree_skb(skb);
}
void hdlc_netif_rx(hdlc_device *hdlc, struct sk_buff *skb)
{
/* skb contains raw HDLC frame, in both hard- and software modes */
skb->mac.raw = skb->data;
switch(hdlc->mode & MODE_MASK) {
case MODE_HDLC:
skb->protocol = htons(ETH_P_IP);
skb->dev = hdlc_to_dev(hdlc);
netif_rx(skb);
return;
case MODE_FR:
fr_netif(hdlc, skb);
return;
case MODE_CISCO:
cisco_netif(hdlc, skb);
return;
#ifdef CONFIG_HDLC_PPP
case MODE_PPP:
#if 0
sppp_input(hdlc_to_dev(hdlc), skb);
#else
skb->protocol = htons(ETH_P_WAN_PPP);
skb->dev = hdlc_to_dev(hdlc);
netif_rx(skb);
#endif
return;
#endif
#ifdef CONFIG_HDLC_X25
case MODE_X25:
skb->dev = hdlc_to_dev(hdlc);
if (lapb_data_received(hdlc, skb) == LAPB_OK)
return;
break;
#endif
}
hdlc->stats.rx_errors++;
dev_kfree_skb_any(skb);
}
