/* *  ebt_mark * *	Authors: *	Bart De Schuymer <bdschuym@pandora.be> * *  July, 2002 * *//* The mark target can be used in any chain, * I believe adding a mangle table just for marking is total overkill. * Marking a frame doesn't really change anything in the frame anyway. */#include <linux/netfilter_bridge/ebtables.h>#include <linux/netfilter_bridge/ebt_mark_t.h>#include <linux/module.h>static int ebt_target_mark(struct sk_buff **pskb, unsigned int hooknr,   const struct net_device *in, const struct net_device *out,   const void *data, unsigned int datalen){	struct ebt_mark_t_info *info = (struct ebt_mark_t_info *)data;	if ((*pskb)->nfmark != info->mark) {		(*pskb)->nfmark = info->mark;		(*pskb)->nfcache |= NFC_ALTERED;	}	return info->target;}static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,   const struct ebt_entry *e, void *data, unsigned int datalen){	struct ebt_mark_t_info *info = (struct ebt_mark_t_info *)data;	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_t_info)))		return -EINVAL;	if (BASE_CHAIN && info->target == EBT_RETURN)		return -EINVAL;	CLEAR_BASE_CHAIN_BIT;	if (INVALID_TARGET)		return -EINVAL;	return 0;}static struct ebt_target mark_target ={	.name		= EBT_MARK_TARGET,	.target		= ebt_target_mark,	.check		= ebt_target_mark_check,	.me		= THIS_MODULE,};static int __init init(void){	return ebt_register_target(&mark_target);}static void __exit fini(void){	ebt_unregister_target(&mark_target);}module_init(init);module_exit(fini);MODULE_LICENSE("GPL");