static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, const void *data, unsigned int datalen)
{
- struct ebt_802_3_info *info = (struct ebt_802_3_info *)data;
- struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
+ const struct ebt_802_3_info *info = data;
+ const struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
__be16 type = hdr->llc.ui.ctrl & IS_UI ? hdr->llc.ui.type : hdr->llc.ni.type;
if (info->bitmask & EBT_802_3_SAP) {
static int ebt_802_3_check(const char *tablename, unsigned int hookmask,
const struct ebt_entry *e, void *data, unsigned int datalen)
{
- struct ebt_802_3_info *info = (struct ebt_802_3_info *)data;
+ const struct ebt_802_3_info *info = data;
if (datalen < sizeof(struct ebt_802_3_info))
return -EINVAL;
return 0;
}
-static struct ebt_match filter_802_3 =
-{
+static struct ebt_match filter_802_3 __read_mostly = {
.name = EBT_802_3_MATCH,
.match = ebt_filter_802_3,
.check = ebt_802_3_check,
module_init(ebt_802_3_init);
module_exit(ebt_802_3_fini);
+MODULE_DESCRIPTION("Ebtables: DSAP/SSAP field and SNAP type matching");
MODULE_LICENSE("GPL");