esp4: Use high-order sequence number bits for IV generation
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 13 May 2015 07:26:10 +0000 (15:26 +0800)
committerSteffen Klassert <steffen.klassert@secunet.com>
Wed, 13 May 2015 07:34:53 +0000 (09:34 +0200)
commit64aa42338e9a88c139b89797163714f0f95f3c6b
tree512567243de7083143af3fa1d4511c790d0e43a6
parentbdddbf6996c0b9299efc97b8f66e06286f3aa8c9
esp4: Use high-order sequence number bits for IV generation

I noticed we were only using the low-order bits for IV generation
when ESN is enabled.  This is very bad because it means that the
IV can repeat.  We must use the full 64 bits.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
net/ipv4/esp4.c