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authorHuang Ying <ying.huang@intel.com>2009-08-06 15:35:20 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2009-08-06 15:35:20 +1000
commitace1366369841c9c3a9788f79baa4d73f1c53107 (patch)
tree65d07ad456082a0e62a1d70fa91403c10d468e27 /include/crypto
parent9382d97af586a47dad312765e35c61aa7ad7fcdd (diff)
downloadlinux-linaro-android-ace1366369841c9c3a9788f79baa4d73f1c53107.tar.gz
crypto: cryptd - Add support to access underlaying shash
cryptd_alloc_ahash() will allocate a cryptd-ed ahash for specified algorithm name. The new allocated one is guaranteed to be cryptd-ed ahash, so the shash underlying can be gotten via cryptd_ahash_child(). Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/cryptd.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 55fa7bbdbc7..2f65a6e8ea4 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -7,6 +7,7 @@
#include <linux/crypto.h>
#include <linux/kernel.h>
+#include <crypto/hash.h>
struct cryptd_ablkcipher {
struct crypto_ablkcipher base;
@@ -24,4 +25,20 @@ struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
struct crypto_blkcipher *cryptd_ablkcipher_child(struct cryptd_ablkcipher *tfm);
void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm);
+struct cryptd_ahash {
+ struct crypto_ahash base;
+};
+
+static inline struct cryptd_ahash *__cryptd_ahash_cast(
+ struct crypto_ahash *tfm)
+{
+ return (struct cryptd_ahash *)tfm;
+}
+
+/* alg_name should be algorithm to be cryptd-ed */
+struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
+ u32 type, u32 mask);
+struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm);
+void cryptd_free_ahash(struct cryptd_ahash *tfm);
+
#endif