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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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12
extensions/xt_DELUDE.c
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@@ -122,8 +122,10 @@ static void delude_send_reset(struct sk_buff *oldskb, unsigned int hook)
dst_hold(oldskb->dst);
nskb->dst = oldskb->dst;
if (ip_route_me_harder(nskb, addr_type))
if (ip_route_me_harder(&nskb, addr_type))
goto free_nskb;
else
niph = ip_hdr(nskb);
niph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
nskb->ip_summed = CHECKSUM_NONE;
@@ -141,14 +143,14 @@ static void delude_send_reset(struct sk_buff *oldskb, unsigned int hook)
kfree_skb(nskb);
}
static unsigned int delude_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 delude_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)
{
/* WARNING: This code causes reentry within iptables.
This means that the iptables jump stack is now crap. We
must return an absolute verdict. --RR */
delude_send_reset(skb, hooknum);
delude_send_reset(*pskb, hooknum);
return NF_DROP;
}