diff options
Diffstat (limited to 'include/linux/netfilter_ingress.h')
-rw-r--r-- | include/linux/netfilter_ingress.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/include/linux/netfilter_ingress.h b/include/linux/netfilter_ingress.h deleted file mode 100644 index a13774be2eb5..000000000000 --- a/include/linux/netfilter_ingress.h +++ /dev/null @@ -1,58 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#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 CONFIG_JUMP_LABEL - if (!static_key_false(&nf_hooks_needed[NFPROTO_NETDEV][NF_NETDEV_INGRESS])) - return false; -#endif - return rcu_access_pointer(skb->dev->nf_hooks_ingress); -} - -/* caller must hold rcu_read_lock */ -static inline int nf_hook_ingress(struct sk_buff *skb) -{ - struct nf_hook_entries *e = rcu_dereference(skb->dev->nf_hooks_ingress); - struct nf_hook_state state; - int ret; - - /* Must recheck the ingress hook head, in the event it became NULL - * after the check in nf_hook_ingress_active evaluated to true. - */ - if (unlikely(!e)) - return 0; - - nf_hook_state_init(&state, NF_NETDEV_INGRESS, - NFPROTO_NETDEV, skb->dev, NULL, NULL, - dev_net(skb->dev), NULL); - ret = nf_hook_slow(skb, &state, e, 0); - if (ret == 0) - return -1; - - return ret; -} - -static inline void nf_hook_ingress_init(struct net_device *dev) -{ - RCU_INIT_POINTER(dev->nf_hooks_ingress, NULL); -} -#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_ */ |