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| author | Eric Dumazet <edumazet@google.com> | 2013-04-29 05:58:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-29 15:14:02 -0400 |
| commit | aebda156a570782a86fc4426842152237a19427d (patch) | |
| tree | 013aecdd1e2223ff91faa08b604d4e4b91283252 /net/ipv4 | |
| parent | 2d177be8e4a1f6ea7e3280b3a578a6b86472a39d (diff) | |
| download | blackbird-op-linux-aebda156a570782a86fc4426842152237a19427d.tar.gz blackbird-op-linux-aebda156a570782a86fc4426842152237a19427d.zip | |
net: defer net_secret[] initialization
Instead of feeding net_secret[] at boot time, defer the init
at the point first socket is created.
This permits some platforms to use better entropy sources than
the ones available at boot time.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/af_inet.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 93824c57b108..c61b3bb87a16 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -114,6 +114,7 @@ #include <net/inet_common.h> #include <net/xfrm.h> #include <net/net_namespace.h> +#include <net/secure_seq.h> #ifdef CONFIG_IP_MROUTE #include <linux/mroute.h> #endif @@ -262,8 +263,10 @@ 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); |
