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src: move to a pskb-based API

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It occurred that skb reallocation does happen on older kernels, and
those kernels should really be supported, since the patch is really
minimal.
This commit is contained in:
Jan Engelhardt
2008-08-11 22:07:41 -04:00
parent 213acdffda
commit ab27472eb4
11 changed files with 75 additions and 82 deletions
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15
extensions/xt_CHAOS.c
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@@ -75,9 +75,9 @@ static void xt_chaos_total(const struct xt_chaos_tginfo *info,
return;
}
static unsigned int chaos_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
static unsigned int chaos_tg(struct sk_buff **pskb,
const struct net_device *in, const struct net_device *out,
unsigned int hooknum, const struct xt_target *target, const void *targinfo)
{
/*
* Equivalent to:
@@ -88,18 +88,19 @@ static unsigned int chaos_tg(struct sk_buff *skb, const struct net_device *in,
* -A chaos -j DROP;
*/
const struct xt_chaos_tginfo *info = targinfo;
struct sk_buff *skb = *pskb;
const struct iphdr *iph = ip_hdr(skb);
if ((unsigned int)net_random() <= reject_percentage)
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
return xt_reject->target(&skb, in, out, hooknum,
return xt_reject->target(pskb, in, out, hooknum,
target->__compat_target, &reject_params, NULL);
#elif LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 23)
return xt_reject->target(&skb, in, out, hooknum,
return xt_reject->target(pskb, in, out, hooknum,
target->__compat_target, &reject_params);
#else
return xt_reject->target(skb, in, out, hooknum, target,
&reject_params);
return xt_reject->target(skb, in, out, hooknum,
target->__compat_target, &reject_params);
#endif
/* TARPIT/DELUDE may not be called from the OUTPUT chain */