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netfilter: Generalize ingress hook include file

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Prepare for addition of a netfilter egress hook by generalizing the
ingress hook include file.

No functional change intended.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Lukas Wunner 2021-10-08 22:06:02 +02:00 committed by Pablo Neira Ayuso
parent 7463acfbe5
commit 17d2078422
2 changed files with 12 additions and 10 deletions
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20
include/linux/netfilter_netdev.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NETFILTER_INGRESS_H_
#define _NETFILTER_INGRESS_H_
#ifndef _NETFILTER_NETDEV_H_
#define _NETFILTER_NETDEV_H_
#include <linux/netfilter.h>
#include <linux/netdevice.h>
@ -38,10 +38,6 @@ static inline int nf_hook_ingress(struct sk_buff *skb)
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)
{
@ -52,7 +48,13 @@ 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_ */
static inline void nf_hook_netdev_init(struct net_device *dev)
{
#ifdef CONFIG_NETFILTER_INGRESS
RCU_INIT_POINTER(dev->nf_hooks_ingress, NULL);
#endif
}
#endif /* _NETFILTER_NETDEV_H_ */

2
net/core/dev.c
View File

@ -10867,7 +10867,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
if (!dev->ethtool_ops)
dev->ethtool_ops = &default_ethtool_ops;
nf_hook_ingress_init(dev);
nf_hook_netdev_init(dev);
return dev;