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| author | Eric Dumazet | 2014-09-04 17:21:31 +0200 |
|---|---|---|
| committer | David S. Miller | 2014-09-06 02:40:33 +0200 |
| commit | d546c621542df9e45eedc91f35356e887ac63b7b (patch) | |
| tree | bcf28df1dafdf743cdbad9230986a5a413e08a26 /include/net/ip_fib.h | |
| parent | net-timestamp: fix allocation error in test (diff) | |
| download | kernel-qcow2-linux-d546c621542df9e45eedc91f35356e887ac63b7b.tar.gz kernel-qcow2-linux-d546c621542df9e45eedc91f35356e887ac63b7b.tar.xz kernel-qcow2-linux-d546c621542df9e45eedc91f35356e887ac63b7b.zip | |
ipv4: harden fnhe_hashfun()
Lets make this hash function a bit secure, as ICMP attacks are still
in the wild.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip_fib.h')
| -rw-r--r-- | include/net/ip_fib.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index f30fd554127e..dc9d2a27c315 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -65,7 +65,8 @@ struct fnhe_hash_bucket { struct fib_nh_exception __rcu *chain; }; -#define FNHE_HASH_SIZE 2048 +#define FNHE_HASH_SHIFT 11 +#define FNHE_HASH_SIZE (1 << FNHE_HASH_SHIFT) #define FNHE_RECLAIM_DEPTH 5 struct fib_nh { |