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[NETFILTER]: Use correct byteorder in ICMP NAT

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-07-22 12:51:38 -07:00 committed by David S. Miller
parent 21f930e4ab
commit 74bb421da7
1 changed files with 4 additions and 3 deletions
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7
net/ipv4/netfilter/ip_nat_proto_icmp.c
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@ -35,16 +35,17 @@ icmp_unique_tuple(struct ip_conntrack_tuple *tuple,
const struct ip_conntrack *conntrack)
{
static u_int16_t id;
unsigned int range_size
= (unsigned int)range->max.icmp.id - range->min.icmp.id + 1;
unsigned int range_size;
unsigned int i;
range_size = ntohs(range->max.icmp.id) - ntohs(range->min.icmp.id) + 1;
/* If no range specified... */
if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED))
range_size = 0xFFFF;
for (i = 0; i < range_size; i++, id++) {
tuple->src.u.icmp.id = range->min.icmp.id + (id % range_size);
tuple->src.u.icmp.id = htons(ntohs(range->min.icmp.id) +
(id % range_size));
if (!ip_nat_used_tuple(tuple, conntrack))
return 1;
}