[PATCH] crypto: sha*-mb Fix total_len for correct hash when larger than 512MB

[Greg Tucker]

Current multi-buffer hash implementations have a restriction on the total
length of a hash job to 512MB. Hashing larger buffers will result in an
incorrect hash. This extends the limit to 2^62 - 1.

Signed-off-by: Greg Tucker <greg.b.tuc...@intel.com>
---
 arch/x86/crypto/sha1-mb/sha1_mb.c         | 2 +-
 arch/x86/crypto/sha1-mb/sha1_mb_ctx.h     | 2 +-
 arch/x86/crypto/sha256-mb/sha256_mb.c     | 2 +-
 arch/x86/crypto/sha256-mb/sha256_mb_ctx.h | 2 +-
 arch/x86/crypto/sha512-mb/sha512_mb.c     | 2 +-
 arch/x86/crypto/sha512-mb/sha512_mb_ctx.h | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/crypto/sha1-mb/sha1_mb.c 
b/arch/x86/crypto/sha1-mb/sha1_mb.c
index 9e5b671..acf9fdf 100644
--- a/arch/x86/crypto/sha1-mb/sha1_mb.c
+++ b/arch/x86/crypto/sha1-mb/sha1_mb.c
@@ -114,7 +114,7 @@ static inline void sha1_init_digest(uint32_t *digest)
 }
 
 static inline uint32_t sha1_pad(uint8_t padblock[SHA1_BLOCK_SIZE * 2],
-                        uint32_t total_len)
+                        uint64_t total_len)
 {
        uint32_t i = total_len & (SHA1_BLOCK_SIZE - 1);
 
diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h 
b/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h
index 98a35bc..13590cc 100644
--- a/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h
+++ b/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h
@@ -125,7 +125,7 @@ struct sha1_hash_ctx {
        /* error flag */
        int error;
 
-       uint32_t        total_length;
+       uint64_t        total_length;
        const void      *incoming_buffer;
        uint32_t        incoming_buffer_length;
        uint8_t         partial_block_buffer[SHA1_BLOCK_SIZE * 2];
diff --git a/arch/x86/crypto/sha256-mb/sha256_mb.c 
b/arch/x86/crypto/sha256-mb/sha256_mb.c
index 6f97fb3..7926a22 100644
--- a/arch/x86/crypto/sha256-mb/sha256_mb.c
+++ b/arch/x86/crypto/sha256-mb/sha256_mb.c
@@ -115,7 +115,7 @@ inline void sha256_init_digest(uint32_t *digest)
 }
 
 inline uint32_t sha256_pad(uint8_t padblock[SHA256_BLOCK_SIZE * 2],
-                        uint32_t total_len)
+                        uint64_t total_len)
 {
        uint32_t i = total_len & (SHA256_BLOCK_SIZE - 1);
 
diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h 
b/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h
index edd252b..aabb303 100644
--- a/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h
+++ b/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h
@@ -125,7 +125,7 @@ struct sha256_hash_ctx {
        /* error flag */
        int error;
 
-       uint32_t        total_length;
+       uint64_t        total_length;
        const void      *incoming_buffer;
        uint32_t        incoming_buffer_length;
        uint8_t         partial_block_buffer[SHA256_BLOCK_SIZE * 2];
diff --git a/arch/x86/crypto/sha512-mb/sha512_mb.c 
b/arch/x86/crypto/sha512-mb/sha512_mb.c
index d210174..9c1bb6d 100644
--- a/arch/x86/crypto/sha512-mb/sha512_mb.c
+++ b/arch/x86/crypto/sha512-mb/sha512_mb.c
@@ -117,7 +117,7 @@ inline void sha512_init_digest(uint64_t *digest)
 }
 
 inline uint32_t sha512_pad(uint8_t padblock[SHA512_BLOCK_SIZE * 2],
-                        uint32_t total_len)
+                        uint64_t total_len)
 {
        uint32_t i = total_len & (SHA512_BLOCK_SIZE - 1);
 
diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h 
b/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h
index 9d4b2c8..e4653f5 100644
--- a/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h
+++ b/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h
@@ -119,7 +119,7 @@ struct sha512_hash_ctx {
        /* error flag */
        int error;
 
-       uint32_t        total_length;
+       uint64_t        total_length;
        const void      *incoming_buffer;
        uint32_t        incoming_buffer_length;
        uint8_t         partial_block_buffer[SHA512_BLOCK_SIZE * 2];
-- 
2.5.5

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