diff options
| author | Davide Caratti <dcaratti@redhat.com> | 2016-11-07 18:31:17 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-11-09 23:49:25 +0100 |
| commit | 0e54d2179f650bac80d89a9def429dbdbed58c11 (patch) | |
| tree | b31bc7daac4dc1213b9767e381a190eadc14f6ac /net/netfilter/nf_conntrack_proto_gre.c | |
| parent | 4e24877e61e8507c0843e4bddbc6ecccbfd2e87d (diff) | |
netfilter: conntrack: simplify init/uninit of L4 protocol trackers
modify registration and deregistration of layer-4 protocol trackers to
facilitate inclusion of new elements into the current list of builtin
protocols. Both builtin (TCP, UDP, ICMP) and non-builtin (DCCP, GRE, SCTP,
UDPlite) layer-4 protocol trackers usually register/deregister themselves
using consecutive calls to nf_ct_l4proto_{,pernet}_{,un}register(...).
This sequence is interrupted and rolled back in case of error; in order to
simplify addition of builtin protocols, the input of the above functions
has been modified to allow registering/unregistering multiple protocols.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_gre.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_gre.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c index 9a715f88b2f1..ff405c9183f1 100644 --- a/net/netfilter/nf_conntrack_proto_gre.c +++ b/net/netfilter/nf_conntrack_proto_gre.c @@ -396,7 +396,9 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = { static int proto_gre_net_init(struct net *net) { int ret = 0; - ret = nf_ct_l4proto_pernet_register(net, &nf_conntrack_l4proto_gre4); + + ret = nf_ct_l4proto_pernet_register_one(net, + &nf_conntrack_l4proto_gre4); if (ret < 0) pr_err("nf_conntrack_gre4: pernet registration failed.\n"); return ret; @@ -404,7 +406,7 @@ static int proto_gre_net_init(struct net *net) static void proto_gre_net_exit(struct net *net) { - nf_ct_l4proto_pernet_unregister(net, &nf_conntrack_l4proto_gre4); + nf_ct_l4proto_pernet_unregister_one(net, &nf_conntrack_l4proto_gre4); nf_ct_gre_keymap_flush(net); } @@ -422,8 +424,7 @@ static int __init nf_ct_proto_gre_init(void) ret = register_pernet_subsys(&proto_gre_net_ops); if (ret < 0) goto out_pernet; - - ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_gre4); + ret = nf_ct_l4proto_register_one(&nf_conntrack_l4proto_gre4); if (ret < 0) goto out_gre4; @@ -436,7 +437,7 @@ out_pernet: static void __exit nf_ct_proto_gre_fini(void) { - nf_ct_l4proto_unregister(&nf_conntrack_l4proto_gre4); + nf_ct_l4proto_unregister_one(&nf_conntrack_l4proto_gre4); unregister_pernet_subsys(&proto_gre_net_ops); } |