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