[linux-2.6-block.git] / include / linux / netfilter_ingress.h

#ifndef _NETFILTER_INGRESS_H_
#define _NETFILTER_INGRESS_H_

#include <linux/netfilter.h>
#include <linux/netdevice.h>

#ifdef CONFIG_NETFILTER_INGRESS
static inline bool nf_hook_ingress_active(const struct sk_buff *skb)
{
#ifdef HAVE_JUMP_LABEL
	if (!static_key_false(&nf_hooks_needed[NFPROTO_NETDEV][NF_NETDEV_INGRESS]))
		return false;
#endif
	return !list_empty(&skb->dev->nf_hooks_ingress);
}

static inline int nf_hook_ingress(struct sk_buff *skb)
{
	struct nf_hook_state state;

	nf_hook_state_init(&state, &skb->dev->nf_hooks_ingress,
			   NF_NETDEV_INGRESS, INT_MIN, NFPROTO_NETDEV,
			   skb->dev, NULL, NULL, dev_net(skb->dev), NULL);
	return nf_hook_slow(skb, &state);
}

static inline void nf_hook_ingress_init(struct net_device *dev)
{
	INIT_LIST_HEAD(&dev->nf_hooks_ingress);
}
#else /* CONFIG_NETFILTER_INGRESS */
static inline int nf_hook_ingress_active(struct sk_buff *skb)
{
	return 0;
}

static inline int nf_hook_ingress(struct sk_buff *skb)
{
	return 0;
}

static inline void nf_hook_ingress_init(struct net_device *dev) {}
#endif /* CONFIG_NETFILTER_INGRESS */
#endif /* _NETFILTER_INGRESS_H_ */
Commit	Line	Data
e687ad60 PN	1	#ifndef _NETFILTER_INGRESS_H_
	2	#define _NETFILTER_INGRESS_H_
	3
	4	#include <linux/netfilter.h>
	5	#include <linux/netdevice.h>
	6
	7	#ifdef CONFIG_NETFILTER_INGRESS
61b590b9	8	static inline bool nf_hook_ingress_active(const struct sk_buff *skb)
e687ad60	9	{
61b590b9 FW	10	#ifdef HAVE_JUMP_LABEL
	11	if (!static_key_false(&nf_hooks_needed[NFPROTO_NETDEV][NF_NETDEV_INGRESS]))
	12	return false;
	13	#endif
	14	return !list_empty(&skb->dev->nf_hooks_ingress);
e687ad60 PN	15	}
	16
	17	static inline int nf_hook_ingress(struct sk_buff *skb)
	18	{
	19	struct nf_hook_state state;
	20
	21	nf_hook_state_init(&state, &skb->dev->nf_hooks_ingress,
b4865988 PNA	22	NF_NETDEV_INGRESS, INT_MIN, NFPROTO_NETDEV,
b4865988 PNA	23	skb->dev, NULL, NULL, dev_net(skb->dev), NULL);
e687ad60 PN	24	return nf_hook_slow(skb, &state);
	25	}
	26
	27	static inline void nf_hook_ingress_init(struct net_device *dev)
	28	{
	29	INIT_LIST_HEAD(&dev->nf_hooks_ingress);
	30	}
	31	#else /* CONFIG_NETFILTER_INGRESS */
	32	static inline int nf_hook_ingress_active(struct sk_buff *skb)
	33	{
	34	return 0;
	35	}
	36
	37	static inline int nf_hook_ingress(struct sk_buff *skb)
	38	{
	39	return 0;
	40	}
	41
	42	static inline void nf_hook_ingress_init(struct net_device *dev) {}
	43	#endif /* CONFIG_NETFILTER_INGRESS */
	44	#endif /* _NETFILTER_INGRESS_H_ */