diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-09-04 19:21:31 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-06 04:40:33 +0400 |
| commit | d546c621542df9e45eedc91f35356e887ac63b7b (patch) | |
| tree | bcf28df1dafdf743cdbad9230986a5a413e08a26 /include | |
| parent | 18a47e6d8af01db1b691802a6bb8eae73d83ad9e (diff) | |
| download | linux-d546c621542df9e45eedc91f35356e887ac63b7b.tar.xz | |
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')
| -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 { |