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--- linux-2.6.25/net/netfilter/nf_conntrack_core.c 2008-04-17 04:49:44.000000000 +0200
+++ linux-2.6.25-owrt/net/netfilter/nf_conntrack_core.c 2008-04-30 12:36:55.000000000 +0200
@@ -73,19 +73,15 @@
static u_int32_t __hash_conntrack(const struct nf_conntrack_tuple *tuple,
unsigned int size, unsigned int rnd)
{
- unsigned int n;
- u_int32_t h;
+ unsigned int a, b;
- /* The direction must be ignored, so we hash everything up to the
- * destination ports (which is a multiple of 4) and treat the last
- * three bytes manually.
- */
- n = (sizeof(tuple->src) + sizeof(tuple->dst.u3)) / sizeof(u32);
- h = jhash2((u32 *)tuple, n,
- rnd ^ (((__force __u16)tuple->dst.u.all << 16) |
- tuple->dst.protonum));
+ a = jhash2(tuple->src.u3.all, ARRAY_SIZE(tuple->src.u3.all),
+ (tuple->src.l3num << 16) | tuple->dst.protonum);
+ b = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all),
+ ((__force __u16)tuple->src.u.all << 16) |
+ (__force __u16)tuple->dst.u.all);
- return ((u64)h * size) >> 32;
+ return ((u64)jhash_2words(a, b, rnd) * size) >> 32;
}
static inline u_int32_t hash_conntrack(const struct nf_conntrack_tuple *tuple)
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