const struct net_device *in, const struct net_device *out,
const void *data, unsigned int datalen)
{
- struct ebt_nat_info *info = (struct ebt_nat_info *) data;
+ const struct ebt_nat_info *info = data;
- if (skb_make_writable(skb, 0))
- return NF_DROP;
+ if (!skb_make_writable(skb, 0))
+ return EBT_DROP;
memcpy(eth_hdr(skb)->h_source, info->mac, ETH_ALEN);
if (!(info->target & NAT_ARP_BIT) &&
eth_hdr(skb)->h_proto == htons(ETH_P_ARP)) {
- struct arphdr _ah, *ap;
+ const struct arphdr *ap;
+ struct arphdr _ah;
ap = skb_header_pointer(skb, 0, sizeof(_ah), &_ah);
if (ap == NULL)
static int ebt_target_snat_check(const char *tablename, unsigned int hookmask,
const struct ebt_entry *e, void *data, unsigned int datalen)
{
- struct ebt_nat_info *info = (struct ebt_nat_info *) data;
+ const struct ebt_nat_info *info = data;
int tmp;
if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
return 0;
}
-static struct ebt_target snat =
-{
+static struct ebt_target snat __read_mostly = {
.name = EBT_SNAT_TARGET,
.target = ebt_target_snat,
.check = ebt_target_snat_check,
module_init(ebt_snat_init);
module_exit(ebt_snat_fini);
+MODULE_DESCRIPTION("Ebtables: Source MAC address translation");
MODULE_LICENSE("GPL");