diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-06-29 05:23:24 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-07-04 19:37:22 +0200 |
| commit | 08911475d1d0921401e37d83292b217e1411d10b (patch) | |
| tree | 78e2ad7b4898fb76dc3c4b4bbe46fbaaf3cb1f18 /net/netfilter/nf_conntrack_proto.c | |
| parent | 8fc02781688eda937657193ee28caf4914563d27 (diff) | |
netfilter: nf_conntrack: generalize nf_ct_l4proto_net
This patch generalizes nf_ct_l4proto_net by splitting it into chunks and
moving the corresponding protocol part to where it really belongs to.
To clarify, note that we follow two different approaches to support per-net
depending if it's built-in or run-time loadable protocol tracker.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 21b850c4b3ab..0dc63854390f 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -303,22 +303,12 @@ EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister); static struct nf_proto_net *nf_ct_l4proto_net(struct net *net, struct nf_conntrack_l4proto *l4proto) { - switch (l4proto->l4proto) { - case IPPROTO_TCP: - return (struct nf_proto_net *)&net->ct.nf_ct_proto.tcp; - case IPPROTO_UDP: - return (struct nf_proto_net *)&net->ct.nf_ct_proto.udp; - case IPPROTO_ICMP: - return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmp; - case IPPROTO_ICMPV6: - return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmpv6; - case 255: /* l4proto_generic */ - return (struct nf_proto_net *)&net->ct.nf_ct_proto.generic; - default: - if (l4proto->net_id) - return net_generic(net, *l4proto->net_id); - else - return NULL; + if (l4proto->get_net_proto) { + /* statically built-in protocols use static per-net */ + return l4proto->get_net_proto(net); + } else if (l4proto->net_id) { + /* ... and loadable protocols use dynamic per-net */ + return net_generic(net, *l4proto->net_id); } return NULL; } |