/*
* Probably needs some error checks and locking, not sure...
*/
static int mpc_send_packet(struct sk_buff *skb, struct net_device *dev)
{
int retval;
struct mpoa_client *mpc;
struct ethhdr *eth;
int i = 0;
mpc = find_mpc_by_lec(dev); /* this should NEVER fail */
if(mpc == NULL) {
printk("mpoa: (%s) mpc_send_packet: no MPC found\n", dev->name);
goto non_ip;
}
eth = (struct ethhdr *)skb->data;
if (eth->h_proto != htons(ETH_P_IP))
goto non_ip; /* Multi-Protocol Over ATM :-) */
while (i < mpc->number_of_mps_macs) {
if (!compare_ether_addr(eth->h_dest, (mpc->mps_macs + i*ETH_ALEN)))
if ( send_via_shortcut(skb, mpc) == 0 ) /* try shortcut */
return 0; /* success! */
i++;
}
non_ip:
retval = mpc->old_hard_start_xmit(skb,dev);
return retval;
}
/*
* Probably needs some error checks and locking, not sure...
*/
static netdev_tx_t mpc_send_packet(struct sk_buff *skb,
struct net_device *dev)
{
struct mpoa_client *mpc;
struct ethhdr *eth;
int i = 0;
mpc = find_mpc_by_lec(dev); /* this should NEVER fail */
if (mpc == NULL) {
pr_info("(%s) no MPC found\n", dev->name);
goto non_ip;
}
eth = (struct ethhdr *)skb->data;
if (eth->h_proto != htons(ETH_P_IP))
goto non_ip; /* Multi-Protocol Over ATM :-) */
/* Weed out funny packets (e.g., AF_PACKET or raw). */
if (skb->len < ETH_HLEN + sizeof(struct iphdr))
goto non_ip;
skb_set_network_header(skb, ETH_HLEN);
if (skb->len < ETH_HLEN + ip_hdr(skb)->ihl * 4 || ip_hdr(skb)->ihl < 5)
goto non_ip;
while (i < mpc->number_of_mps_macs) {
if (!compare_ether_addr(eth->h_dest,
(mpc->mps_macs + i*ETH_ALEN)))
if (send_via_shortcut(skb, mpc) == 0) /* try shortcut */
return NETDEV_TX_OK;
i++;
}
non_ip:
return mpc->old_ops->ndo_start_xmit(skb, dev);
}
