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crypto: ccp - Change data length declarations to u64

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When performing a hash operation if the amount of data buffered and a
request at or near the maximum data length is received then the length
calcuation could wrap causing an error in executing the hash operation.
Fix this by using a u64 type for the input and output data lengths in
all CCP operations.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tom Lendacky 2014-01-06 13:34:17 -06:00 • committed by Herbert Xu
parent 393897c515
commit 81a59f000e
5 changed files with 57 additions and 37 deletions
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8
include/linux/ccp.h
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@ -133,7 +133,7 @@ struct ccp_aes_engine {
u32 iv_len; /* In bytes */
struct scatterlist *src, *dst;
u32 src_len; /* In bytes */
u64 src_len; /* In bytes */
u32 cmac_final; /* Indicates final cmac cmd */
struct scatterlist *cmac_key; /* K1/K2 cmac key required for
@ -190,7 +190,7 @@ struct ccp_xts_aes_engine {
u32 iv_len; /* In bytes */
struct scatterlist *src, *dst;
u32 src_len; /* In bytes */
u64 src_len; /* In bytes */
u32 final;
};
@ -237,7 +237,7 @@ struct ccp_sha_engine {
u32 ctx_len; /* In bytes */
struct scatterlist *src;
u32 src_len; /* In bytes */
u64 src_len; /* In bytes */
u32 final; /* Indicates final sha cmd */
u64 msg_bits; /* Message length in bits required for
@ -328,7 +328,7 @@ struct ccp_passthru_engine {
u32 mask_len; /* In bytes */
struct scatterlist *src, *dst;
u32 src_len; /* In bytes */
u64 src_len; /* In bytes */
u32 final;
};