diff options
Diffstat (limited to 'net/netfilter/xt_CT.c')
| -rw-r--r-- | net/netfilter/xt_CT.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 782e51986a6f..0221d10de75a 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -5,7 +5,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> #include <linux/gfp.h> #include <linux/skbuff.h> @@ -95,8 +95,11 @@ static int xt_ct_tg_check(const struct xt_tgchk_param *par) if (info->helper[0]) { ret = -ENOENT; proto = xt_ct_find_proto(par); - if (!proto) + if (!proto) { + pr_info("You must specify a L4 protocol, " + "and not use inversions on it.\n"); goto err3; + } ret = -ENOMEM; help = nf_ct_helper_ext_add(ct, GFP_KERNEL); @@ -107,8 +110,10 @@ static int xt_ct_tg_check(const struct xt_tgchk_param *par) help->helper = nf_conntrack_helper_try_module_get(info->helper, par->family, proto); - if (help->helper == NULL) + if (help->helper == NULL) { + pr_info("No such helper \"%s\"\n", info->helper); goto err3; + } } __set_bit(IPS_TEMPLATE_BIT, &ct->status); |