From c36952e524b2b898a3c9e9b137f64d72d43cd393 Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Fri, 23 Jul 2010 13:27:08 +0200 Subject: [PATCH] netfilter: nf_nat_core: merge the same lines proto->unique_tuple() will be called finally, if the previous calls fail. This patch checks the false condition of (range->flags &IP_NAT_RANGE_PROTO_RANDOM) instead to avoid duplicate line of code: proto->unique_tuple(). Signed-off-by: Changli Gao Signed-off-by: Patrick McHardy --- net/ipv4/netfilter/nf_nat_core.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c index c7719b283ada..037a3a659930 100644 --- a/net/ipv4/netfilter/nf_nat_core.c +++ b/net/ipv4/netfilter/nf_nat_core.c @@ -261,14 +261,9 @@ get_unique_tuple(struct nf_conntrack_tuple *tuple, rcu_read_lock(); proto = __nf_nat_proto_find(orig_tuple->dst.protonum); - /* Change protocol info to have some randomization */ - if (range->flags & IP_NAT_RANGE_PROTO_RANDOM) { - proto->unique_tuple(tuple, range, maniptype, ct); - goto out; - } - /* Only bother mapping if it's not already in range and unique */ - if ((!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED) || + if (!(range->flags & IP_NAT_RANGE_PROTO_RANDOM) && + (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED) || proto->in_range(tuple, maniptype, &range->min, &range->max)) && !nf_nat_used_tuple(tuple, ct)) goto out; -- GitLab