MODULE_DESCRIPTION("IP tables Hop Limit matching module");
MODULE_LICENSE("GPL");
-static int match(const struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- const struct xt_match *match, const void *matchinfo,
- int offset, unsigned int protoff, int *hotdrop)
+static bool match(const struct sk_buff *skb,
+ const struct net_device *in, const struct net_device *out,
+ const struct xt_match *match, const void *matchinfo,
+ int offset, unsigned int protoff, bool *hotdrop)
{
const struct ip6t_hl_info *info = matchinfo;
const struct ipv6hdr *ip6h = ipv6_hdr(skb);
switch (info->mode) {
case IP6T_HL_EQ:
- return (ip6h->hop_limit == info->hop_limit);
+ return ip6h->hop_limit == info->hop_limit;
break;
case IP6T_HL_NE:
- return (!(ip6h->hop_limit == info->hop_limit));
+ return ip6h->hop_limit != info->hop_limit;
break;
case IP6T_HL_LT:
- return (ip6h->hop_limit < info->hop_limit);
+ return ip6h->hop_limit < info->hop_limit;
break;
case IP6T_HL_GT:
- return (ip6h->hop_limit > info->hop_limit);
+ return ip6h->hop_limit > info->hop_limit;
break;
default:
printk(KERN_WARNING "ip6t_hl: unknown mode %d\n",
info->mode);
- return 0;
+ return false;
}
- return 0;
+ return false;
}
-static struct xt_match hl_match = {
+static struct xt_match hl_match __read_mostly = {
.name = "hl",
.family = AF_INET6,
.match = match,