diff options
| author | Jan Engelhardt <jengelh@medozas.de> | 2008-10-08 11:35:00 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2008-10-08 11:35:00 +0200 |
| commit | 7e9c6eeb136a46dfd941852803b3a9dd78939b69 (patch) | |
| tree | 441776a1c5b750f0e11b56e87b9804144d0b72ae /include/linux | |
| parent | 079aa88fe7172b7650c7cf2c0bc01662bafea236 (diff) | |
netfilter: Introduce NFPROTO_* constants
The netfilter subsystem only supports a handful of protocols (much
less than PF_*) and even non-PF protocols like ARP and
pseudo-protocols like PF_BRIDGE. By creating NFPROTO_*, we can earn a
few memory savings on arrays that previously were always PF_MAX-sized
and keep the pseudo-protocols to ourselves.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netfilter.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 8c83d2e23bd..bf3afb0844f 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -52,6 +52,16 @@ enum nf_inet_hooks { NF_INET_NUMHOOKS }; +enum { + NFPROTO_UNSPEC = 0, + NFPROTO_IPV4 = 2, + NFPROTO_ARP = 3, + NFPROTO_BRIDGE = 7, + NFPROTO_IPV6 = 10, + NFPROTO_DECNET = 12, + NFPROTO_NUMPROTO, +}; + union nf_inet_addr { __u32 all[4]; __be32 ip; @@ -138,7 +148,7 @@ extern struct ctl_path nf_net_netfilter_sysctl_path[]; extern struct ctl_path nf_net_ipv4_netfilter_sysctl_path[]; #endif /* CONFIG_SYSCTL */ -extern struct list_head nf_hooks[NPROTO][NF_MAX_HOOKS]; +extern struct list_head nf_hooks[NFPROTO_NUMPROTO][NF_MAX_HOOKS]; int nf_hook_slow(u_int8_t pf, unsigned int hook, struct sk_buff *skb, struct net_device *indev, struct net_device *outdev, @@ -247,7 +257,7 @@ struct nf_afinfo { int route_key_size; }; -extern const struct nf_afinfo *nf_afinfo[NPROTO]; +extern const struct nf_afinfo *nf_afinfo[NFPROTO_NUMPROTO]; static inline const struct nf_afinfo *nf_get_afinfo(unsigned short family) { return rcu_dereference(nf_afinfo[family]); |