path: root/include/linux
diff options
authorTom Lendacky <thomas.lendacky@amd.com>2014-01-24 16:18:02 -0600
committerHerbert Xu <herbert@gondor.apana.org.au>2014-02-09 09:59:23 +0800
commitc11baa02c5d6ea06362fa61da070af34b7706c83 (patch)
tree0075799191d2786575589ce71b02ee49fdc2a957 /include/linux
parentd81ed6534fd988a8a24fb607b459444d4b3d391a (diff)
crypto: ccp - Move HMAC calculation down to ccp ops file
Move the support to perform an HMAC calculation into the CCP operations file. This eliminates the need to perform a synchronous SHA operation used to calculate the HMAC. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux')
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/ccp.h b/include/linux/ccp.h
index b941ab9f762b..ebcc9d146219 100644
--- a/include/linux/ccp.h
+++ b/include/linux/ccp.h
@@ -232,6 +232,9 @@ enum ccp_sha_type {
* @ctx_len: length in bytes of hash value
* @src: data to be used for this operation
* @src_len: length in bytes of data used for this operation
+ * @opad: data to be used for final HMAC operation
+ * @opad_len: length in bytes of data used for final HMAC operation
+ * @first: indicates first SHA operation
* @final: indicates final SHA operation
* @msg_bits: total length of the message in bits used in final SHA operation
@@ -251,6 +254,10 @@ struct ccp_sha_engine {
struct scatterlist *src;
u64 src_len; /* In bytes */
+ struct scatterlist *opad;
+ u32 opad_len; /* In bytes */
+ u32 first; /* Indicates first sha cmd */
u32 final; /* Indicates final sha cmd */
u64 msg_bits; /* Message length in bits required for
* final sha cmd */