diff options
Diffstat (limited to 'net/netfilter/xt_limit.c')
| -rw-r--r-- | net/netfilter/xt_limit.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c index e5d7e1ffb1a4..32b7a579a032 100644 --- a/net/netfilter/xt_limit.c +++ b/net/netfilter/xt_limit.c @@ -5,6 +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/slab.h> #include <linux/module.h> @@ -64,7 +65,7 @@ static DEFINE_SPINLOCK(limit_lock); #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ) static bool -limit_mt(const struct sk_buff *skb, const struct xt_match_param *par) +limit_mt(const struct sk_buff *skb, struct xt_action_param *par) { const struct xt_rateinfo *r = par->matchinfo; struct xt_limit_priv *priv = r->master; @@ -98,7 +99,7 @@ user2credits(u_int32_t user) return (user * HZ * CREDITS_PER_JIFFY) / XT_LIMIT_SCALE; } -static bool limit_mt_check(const struct xt_mtchk_param *par) +static int limit_mt_check(const struct xt_mtchk_param *par) { struct xt_rateinfo *r = par->matchinfo; struct xt_limit_priv *priv; @@ -106,14 +107,14 @@ static bool limit_mt_check(const struct xt_mtchk_param *par) /* Check for overflow. */ if (r->burst == 0 || user2credits(r->avg * r->burst) < user2credits(r->avg)) { - printk("Overflow in xt_limit, try lower: %u/%u\n", - r->avg, r->burst); - return false; + pr_info("Overflow, try lower: %u/%u\n", + r->avg, r->burst); + return -ERANGE; } priv = kmalloc(sizeof(*priv), GFP_KERNEL); if (priv == NULL) - return false; + return -ENOMEM; /* For SMP, we only want to use one set of state. */ r->master = priv; @@ -125,7 +126,7 @@ static bool limit_mt_check(const struct xt_mtchk_param *par) r->credit_cap = user2credits(r->avg * r->burst); /* Credits full. */ r->cost = user2credits(r->avg); } - return true; + return 0; } static void limit_mt_destroy(const struct xt_mtdtor_param *par) |