diff options
Diffstat (limited to 'net/netfilter/nf_conntrack_helper.c')
-rw-r--r-- | net/netfilter/nf_conntrack_helper.c | 69 |
1 files changed, 1 insertions, 68 deletions
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index e24b762ffa1d..274baf1dab87 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -42,67 +42,6 @@ module_param_named(nf_conntrack_helper, nf_ct_auto_assign_helper, bool, 0644); MODULE_PARM_DESC(nf_conntrack_helper, "Enable automatic conntrack helper assignment (default 0)"); -#ifdef CONFIG_SYSCTL -static struct ctl_table helper_sysctl_table[] = { - { - .procname = "nf_conntrack_helper", - .data = &init_net.ct.sysctl_auto_assign_helper, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - {} -}; - -static int nf_conntrack_helper_init_sysctl(struct net *net) -{ - struct ctl_table *table; - - table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table), - GFP_KERNEL); - if (!table) - goto out; - - table[0].data = &net->ct.sysctl_auto_assign_helper; - - /* Don't export sysctls to unprivileged users */ - if (net->user_ns != &init_user_ns) - table[0].procname = NULL; - - net->ct.helper_sysctl_header = - register_net_sysctl(net, "net/netfilter", table); - - if (!net->ct.helper_sysctl_header) { - pr_err("nf_conntrack_helper: can't register to sysctl.\n"); - goto out_register; - } - return 0; - -out_register: - kfree(table); -out: - return -ENOMEM; -} - -static void nf_conntrack_helper_fini_sysctl(struct net *net) -{ - struct ctl_table *table; - - table = net->ct.helper_sysctl_header->ctl_table_arg; - unregister_net_sysctl_table(net->ct.helper_sysctl_header); - kfree(table); -} -#else -static int nf_conntrack_helper_init_sysctl(struct net *net) -{ - return 0; -} - -static void nf_conntrack_helper_fini_sysctl(struct net *net) -{ -} -#endif /* CONFIG_SYSCTL */ - /* Stupid hash, but collision free for the default registrations of the * helpers currently in the kernel. */ static unsigned int helper_hash(const struct nf_conntrack_tuple *tuple) @@ -533,16 +472,10 @@ static const struct nf_ct_ext_type helper_extend = { .id = NF_CT_EXT_HELPER, }; -int nf_conntrack_helper_pernet_init(struct net *net) +void nf_conntrack_helper_pernet_init(struct net *net) { net->ct.auto_assign_helper_warned = false; net->ct.sysctl_auto_assign_helper = nf_ct_auto_assign_helper; - return nf_conntrack_helper_init_sysctl(net); -} - -void nf_conntrack_helper_pernet_fini(struct net *net) -{ - nf_conntrack_helper_fini_sysctl(net); } int nf_conntrack_helper_init(void) |