---

yaml --- r: 158016 b: refs/heads/master c: ace1366 h: refs/heads/master v: v3
git-mirror · Aug 6, 2009 · 23fef3c · 23fef3c
1 parent 3fdb908
commit 23fef3c
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Showing 3 changed files with 53 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9382d97af586a47dad312765e35c61aa7ad7fcdd
+refs/heads/master: ace1366369841c9c3a9788f79baa4d73f1c53107
diff --git a/trunk/crypto/cryptd.c b/trunk/crypto/cryptd.c
@@ -682,6 +682,41 @@ void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm)
 }
 EXPORT_SYMBOL_GPL(cryptd_free_ablkcipher);
 
+struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
+					u32 type, u32 mask)
+{
+	char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
+	struct crypto_ahash *tfm;
+
+	if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
+		     "cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
+		return ERR_PTR(-EINVAL);
+	tfm = crypto_alloc_ahash(cryptd_alg_name, type, mask);
+	if (IS_ERR(tfm))
+		return ERR_CAST(tfm);
+	if (tfm->base.__crt_alg->cra_module != THIS_MODULE) {
+		crypto_free_ahash(tfm);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return __cryptd_ahash_cast(tfm);
+}
+EXPORT_SYMBOL_GPL(cryptd_alloc_ahash);
+
+struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm)
+{
+	struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(&tfm->base);
+
+	return ctx->child;
+}
+EXPORT_SYMBOL_GPL(cryptd_ahash_child);
+
+void cryptd_free_ahash(struct cryptd_ahash *tfm)
+{
+	crypto_free_ahash(&tfm->base);
+}
+EXPORT_SYMBOL_GPL(cryptd_free_ahash);
+
 static int __init cryptd_init(void)
 {
 	int err;

diff --git a/trunk/include/crypto/cryptd.h b/trunk/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