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authorDavid S. Miller <davem@davemloft.net>2007-03-23 11:40:27 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:28:06 -0700
commitb3da2cf37c5c6e47698957a25ab43a7223dbb90f (patch)
treee8892392aaf7e3d3544ede23c21791e2317b177d /net/ipv6
parentd30045a0bcf144753869175dd9d840f7ceaf4aba (diff)
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[INET]: Use jhash + random secret for ehash.
The days are gone when this was not an issue, there are folks out there with huge bot networks that can be used to attack the established hash tables on remote systems. So just like the routing cache and connection tracking hash, use Jenkins hash with random secret input. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/af_inet6.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 82572b507547..df31cdd33cda 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -98,6 +98,11 @@ static int inet6_create(struct socket *sock, int protocol)
int try_loading_module = 0;
int err;
+ if (sock->type != SOCK_RAW &&
+ sock->type != SOCK_DGRAM &&
+ !inet_ehash_secret)
+ build_ehash_secret();
+
/* Look for the requested type/protocol pair. */
answer = NULL;
lookup_protocol: