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ipv6: Use universal hash for NDISC.

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In order to perform a proper universal hash on a vector of integers,
we have to use different universal hashes on each vector element.

Which means we need 4 different hash randoms for ipv6.

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2011-12-28 15:06:58 -05:00
commit 2c2aba6c56
7 changed files with 32 additions and 21 deletions
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6
net/ipv4/arp.c
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@ -121,7 +121,7 @@
/*
* Interface to generic neighbour cache.
*/
static u32 arp_hash(const void *pkey, const struct net_device *dev, __u32 rnd);
static u32 arp_hash(const void *pkey, const struct net_device *dev, __u32 *hash_rnd);
static int arp_constructor(struct neighbour *neigh);
static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb);
static void arp_error_report(struct neighbour *neigh, struct sk_buff *skb);
@ -215,9 +215,9 @@ int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir)
static u32 arp_hash(const void *pkey,
const struct net_device *dev,
__u32 hash_rnd)
__u32 *hash_rnd)
{
return arp_hashfn(*(u32 *)pkey, dev, hash_rnd);
return arp_hashfn(*(u32 *)pkey, dev, *hash_rnd);
}
static int arp_constructor(struct neighbour *neigh)