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net: net_secret should not depend on TCP

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A host might need net_secret[] and never open a single socket.

Problem added in commit aebda156a5
("net: defer net_secret[] initialization")

Based on prior patch from Hannes Frederic Sowa.

Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@strressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2013-09-24 06:19:57 -07:00 • committed by David S. Miller
parent 50624c934d
commit 9a3bab6b05
3 changed files with 25 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/ipv4/af_inet.c
View file

@ -263,10 +263,8 @@ void build_ehash_secret(void)
get_random_bytes(&rnd, sizeof(rnd));
} while (rnd == 0);
if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0) {
if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0)
get_random_bytes(&ipv6_hash_secret, sizeof(ipv6_hash_secret));
net_secret_init();
}
}
EXPORT_SYMBOL(build_ehash_secret);