[NETFILTER]: ipt_DNAT: accept port randomization option

Also accept the --random option for DNAT to allow randomly selecting a
destination port from the given range.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index 2a28339..2534f71 100644 (file)
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -226,10 +226,6 @@ static int ipt_dnat_checkentry(const char *tablename,
                printk("DNAT: multiple ranges no longer supported\n");
                return 0;
        }
-       if (mr->range[0].flags & IP_NAT_RANGE_PROTO_RANDOM) {
-               printk("DNAT: port randomization not supported\n");
-               return 0;
-       }
        return 1;
 }