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path: root/net/ipv4/netfilter/ip_conntrack_standalone.c
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Diffstat (limited to 'net/ipv4/netfilter/ip_conntrack_standalone.c')
-rw-r--r--net/ipv4/netfilter/ip_conntrack_standalone.c90
1 files changed, 44 insertions, 46 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index adc1a0f6640..929d61f7be9 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -776,18 +776,46 @@ static ctl_table ip_ct_net_table[] = {
EXPORT_SYMBOL(ip_ct_log_invalid);
#endif /* CONFIG_SYSCTL */
-static int init_or_cleanup(int init)
+/* FIXME: Allow NULL functions and sub in pointers to generic for
+ them. --RR */
+int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
+{
+ int ret = 0;
+
+ write_lock_bh(&ip_conntrack_lock);
+ if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
+ ret = -EBUSY;
+ goto out;
+ }
+ ip_ct_protos[proto->proto] = proto;
+ out:
+ write_unlock_bh(&ip_conntrack_lock);
+ return ret;
+}
+
+void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
+{
+ write_lock_bh(&ip_conntrack_lock);
+ ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
+ write_unlock_bh(&ip_conntrack_lock);
+
+ /* Somebody could be still looking at the proto in bh. */
+ synchronize_net();
+
+ /* Remove all contrack entries for this protocol */
+ ip_ct_iterate_cleanup(kill_proto, &proto->proto);
+}
+
+static int __init ip_conntrack_standalone_init(void)
{
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc, *proc_exp, *proc_stat;
#endif
int ret = 0;
- if (!init) goto cleanup;
-
ret = ip_conntrack_init();
if (ret < 0)
- goto cleanup_nothing;
+ return ret;
#ifdef CONFIG_PROC_FS
ret = -ENOMEM;
@@ -819,16 +847,12 @@ static int init_or_cleanup(int init)
goto cleanup_hooks;
}
#endif
-
return ret;
- cleanup:
- synchronize_net();
#ifdef CONFIG_SYSCTL
- unregister_sysctl_table(ip_ct_sysctl_header);
cleanup_hooks:
-#endif
nf_unregister_hooks(ip_conntrack_ops, ARRAY_SIZE(ip_conntrack_ops));
+#endif
cleanup_proc_stat:
#ifdef CONFIG_PROC_FS
remove_proc_entry("ip_conntrack", proc_net_stat);
@@ -839,48 +863,22 @@ static int init_or_cleanup(int init)
cleanup_init:
#endif /* CONFIG_PROC_FS */
ip_conntrack_cleanup();
- cleanup_nothing:
return ret;
}
-/* FIXME: Allow NULL functions and sub in pointers to generic for
- them. --RR */
-int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
-{
- int ret = 0;
-
- write_lock_bh(&ip_conntrack_lock);
- if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
- ret = -EBUSY;
- goto out;
- }
- ip_ct_protos[proto->proto] = proto;
- out:
- write_unlock_bh(&ip_conntrack_lock);
- return ret;
-}
-
-void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
-{
- write_lock_bh(&ip_conntrack_lock);
- ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
- write_unlock_bh(&ip_conntrack_lock);
-
- /* Somebody could be still looking at the proto in bh. */
- synchronize_net();
-
- /* Remove all contrack entries for this protocol */
- ip_ct_iterate_cleanup(kill_proto, &proto->proto);
-}
-
-static int __init ip_conntrack_standalone_init(void)
-{
- return init_or_cleanup(1);
-}
-
static void __exit ip_conntrack_standalone_fini(void)
{
- init_or_cleanup(0);
+ synchronize_net();
+#ifdef CONFIG_SYSCTL
+ unregister_sysctl_table(ip_ct_sysctl_header);
+#endif
+ nf_unregister_hooks(ip_conntrack_ops, ARRAY_SIZE(ip_conntrack_ops));
+#ifdef CONFIG_PROC_FS
+ remove_proc_entry("ip_conntrack", proc_net_stat);
+ proc_net_remove("ip_conntrack_expect");
+ proc_net_remove("ip_conntrack");
+#endif /* CONFIG_PROC_FS */
+ ip_conntrack_cleanup();
}
module_init(ip_conntrack_standalone_init);