-/*
+/*
* Hop Limit modification target for ip6tables
* Maciej Soltysiak <solt@dns.toxicfilms.tv>
* Based on HW's TTL module
MODULE_DESCRIPTION("IP6 tables Hop Limit modification module");
MODULE_LICENSE("GPL");
-static unsigned int ip6t_hl_target(struct sk_buff **pskb,
+static unsigned int ip6t_hl_target(struct sk_buff **pskb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
if (!skb_make_writable(pskb, (*pskb)->len))
return NF_DROP;
- ip6h = (*pskb)->nh.ipv6h;
+ ip6h = ipv6_hdr(*pskb);
switch (info->mode) {
case IP6T_HL_SET:
return XT_CONTINUE;
}
-static int ip6t_hl_checkentry(const char *tablename,
+static bool ip6t_hl_checkentry(const char *tablename,
const void *entry,
const struct xt_target *target,
void *targinfo,
unsigned int hook_mask)
{
- struct ip6t_HL_info *info = targinfo;
+ const struct ip6t_HL_info *info = targinfo;
if (info->mode > IP6T_HL_MAXMODE) {
- printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n",
+ printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n",
info->mode);
- return 0;
+ return false;
}
- if ((info->mode != IP6T_HL_SET) && (info->hop_limit == 0)) {
+ if (info->mode != IP6T_HL_SET && info->hop_limit == 0) {
printk(KERN_WARNING "ip6t_HL: increment/decrement doesn't "
"make sense with value 0\n");
- return 0;
+ return false;
}
- return 1;
+ return true;
}
static struct xt_target ip6t_HL = {
- .name = "HL",
+ .name = "HL",
.family = AF_INET6,
- .target = ip6t_hl_target,
+ .target = ip6t_hl_target,
.targetsize = sizeof(struct ip6t_HL_info),
.table = "mangle",
- .checkentry = ip6t_hl_checkentry,
+ .checkentry = ip6t_hl_checkentry,
.me = THIS_MODULE
};