Ejemplo n.º 1
0
static bool ecn_mt(const struct sk_buff *skb, const struct xt_match_param *par)
{
	const struct ipt_ecn_info *info = par->matchinfo;

	if (info->operation & IPT_ECN_OP_MATCH_IP)
		if (!match_ip(skb, info))
			return false;

	if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
		if (ip_hdr(skb)->protocol != IPPROTO_TCP)
			return false;
		if (!match_tcp(skb, info, par->hotdrop))
			return false;
	}

	return true;
}
Ejemplo n.º 2
0
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)
{
	const struct ipt_ecn_info *info = matchinfo;

	if (info->operation & IPT_ECN_OP_MATCH_IP)
		if (!match_ip(skb, info))
			return 0;

	if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
		if (skb->nh.iph->protocol != IPPROTO_TCP)
			return 0;
		if (!match_tcp(skb, info, hotdrop))
			return 0;
	}

	return 1;
}