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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-10-08 01:14:46 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-10-12 01:57:34 +0200 |
| commit | ddcfa710d40b39e3134d318e5fe07ba672288054 (patch) | |
| tree | 67b66ba3f82fd04ce417e566e4b4cf29c07bcea0 /net/netfilter | |
| parent | afd9024cd1fcfb23fe804d473f457fde07a71148 (diff) | |
| download | lwn-ddcfa710d40b39e3134d318e5fe07ba672288054.tar.gz lwn-ddcfa710d40b39e3134d318e5fe07ba672288054.zip | |
netfilter: add nf_ingress_hook() helper function
Add helper function to check if this is an ingress hook.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/core.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index b9ec8ecf7e30..c82f779a587e 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -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); |