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-rw-r--r--net/ipv4/netfilter/nf_nat_proto_common.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_proto_gre.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_proto_icmp.c4
3 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/netfilter/nf_nat_proto_common.c b/net/ipv4/netfilter/nf_nat_proto_common.c
index 2844a0383a11..3e61faf23a9a 100644
--- a/net/ipv4/netfilter/nf_nat_proto_common.c
+++ b/net/ipv4/netfilter/nf_nat_proto_common.c
@@ -81,9 +81,9 @@ void nf_nat_proto_unique_tuple(struct nf_conntrack_tuple *tuple,
else
off = *rover;
- for (i = 0; i < range_size; i++, off++) {
+ for (i = 0; ; ++off) {
*portptr = htons(min + off % range_size);
- if (nf_nat_used_tuple(tuple, ct))
+ if (++i != range_size && nf_nat_used_tuple(tuple, ct))
continue;
if (!(range->flags & IP_NAT_RANGE_PROTO_RANDOM))
*rover = off;
diff --git a/net/ipv4/netfilter/nf_nat_proto_gre.c b/net/ipv4/netfilter/nf_nat_proto_gre.c
index 89933ab6f63e..bc8d83a31c73 100644
--- a/net/ipv4/netfilter/nf_nat_proto_gre.c
+++ b/net/ipv4/netfilter/nf_nat_proto_gre.c
@@ -68,9 +68,9 @@ gre_unique_tuple(struct nf_conntrack_tuple *tuple,
pr_debug("min = %u, range_size = %u\n", min, range_size);
- for (i = 0; i < range_size; i++, key++) {
+ for (i = 0; ; ++key) {
*keyptr = htons(min + key % range_size);
- if (!nf_nat_used_tuple(tuple, ct))
+ if (++i == range_size || !nf_nat_used_tuple(tuple, ct))
return;
}
diff --git a/net/ipv4/netfilter/nf_nat_proto_icmp.c b/net/ipv4/netfilter/nf_nat_proto_icmp.c
index 97003fe312e3..5744c3ec847c 100644
--- a/net/ipv4/netfilter/nf_nat_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_icmp.c
@@ -42,10 +42,10 @@ icmp_unique_tuple(struct nf_conntrack_tuple *tuple,
if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED))
range_size = 0xFFFF;
- for (i = 0; i < range_size; i++, id++) {
+ for (i = 0; ; ++id) {
tuple->src.u.icmp.id = htons(ntohs(range->min.icmp.id) +
(id % range_size));
- if (!nf_nat_used_tuple(tuple, ct))
+ if (++i == range_size || !nf_nat_used_tuple(tuple, ct))
return;
}
return;