netfilter: add nf_ingress_hook() helper function (ddcfa710) · Commits · 戴 / test

net/netfilter/core.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -311,6 +311,11 @@ nf_hook_entry_head(struct net *net, int pf, unsigned int hooknum,
		return NULL;
		}

		static inline bool nf_ingress_hook(const struct nf_hook_ops *reg, int pf)
		{
		return pf == NFPROTO_NETDEV && reg->hooknum == NF_NETDEV_INGRESS;
		}

		static void nf_static_key_inc(const struct nf_hook_ops *reg, int pf)
		{
		#ifdef CONFIG_JUMP_LABEL
		@@ -359,7 +364,7 @@ static int __nf_register_net_hook(struct net *net, int pf,

		hooks_validate(new_hooks);
		#ifdef CONFIG_NETFILTER_INGRESS
		if (pf == NFPROTO_NETDEV && reg->hooknum == NF_NETDEV_INGRESS)
		if (nf_ingress_hook(reg, pf))
		net_inc_ingress_queue();
		#endif
		nf_static_key_inc(reg, pf);
		@@ -416,7 +421,7 @@ static void __nf_unregister_net_hook(struct net *net, int pf,

		if (nf_remove_net_hook(p, reg)) {
		#ifdef CONFIG_NETFILTER_INGRESS
		if (pf == NFPROTO_NETDEV && reg->hooknum == NF_NETDEV_INGRESS)
		if (nf_ingress_hook(reg, pf))
		net_dec_ingress_queue();
		#endif
		nf_static_key_dec(reg, pf);