1 files changed, 103 insertions, 41 deletions

diff --git a/crypto/ahash.c b/crypto/ahash.c
index ff8c79d975c1..b8a607928e72 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -8,19 +8,18 @@
  * Copyright (c) 2008 Loc Ho <lho@amcc.com>
  */
 
-#include <crypto/internal/hash.h>
 #include <crypto/scatterwalk.h>
+#include <linux/cryptouser.h>
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/seq_file.h>
-#include <linux/cryptouser.h>
-#include <linux/compiler.h>
+#include <linux/string.h>
 #include <net/netlink.h>
 
-#include "internal.h"
+#include "hash.h"
 
 static const struct crypto_type crypto_ahash_type;
 
@@ -296,55 +295,60 @@ static int crypto_ahash_op(struct ahash_request *req,
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	unsigned long alignmask = crypto_ahash_alignmask(tfm);
+	int err;
 
 	if ((unsigned long)req->result & alignmask)
-		return ahash_op_unaligned(req, op, has_state);
+		err = ahash_op_unaligned(req, op, has_state);
+	else
+		err = op(req);
 
-	return op(req);
+	return crypto_hash_errstat(crypto_hash_alg_common(tfm), err);
 }
 
 int crypto_ahash_final(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct crypto_alg *alg = tfm->base.__crt_alg;
-	unsigned int nbytes = req->nbytes;
-	int ret;
+	struct hash_alg_common *alg = crypto_hash_alg_common(tfm);
 
-	crypto_stats_get(alg);
-	ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->final, true);
-	crypto_stats_ahash_final(nbytes, ret, alg);
-	return ret;
+	if (IS_ENABLED(CONFIG_CRYPTO_STATS))
+		atomic64_inc(&hash_get_stat(alg)->hash_cnt);
+
+	return crypto_ahash_op(req, tfm->final, true);
 }
 EXPORT_SYMBOL_GPL(crypto_ahash_final);
 
 int crypto_ahash_finup(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct crypto_alg *alg = tfm->base.__crt_alg;
-	unsigned int nbytes = req->nbytes;
-	int ret;
+	struct hash_alg_common *alg = crypto_hash_alg_common(tfm);
 
-	crypto_stats_get(alg);
-	ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->finup, true);
-	crypto_stats_ahash_final(nbytes, ret, alg);
-	return ret;
+	if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
+		struct crypto_istat_hash *istat = hash_get_stat(alg);
+
+		atomic64_inc(&istat->hash_cnt);
+		atomic64_add(req->nbytes, &istat->hash_tlen);
+	}
+
+	return crypto_ahash_op(req, tfm->finup, true);
 }
 EXPORT_SYMBOL_GPL(crypto_ahash_finup);
 
 int crypto_ahash_digest(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct crypto_alg *alg = tfm->base.__crt_alg;
-	unsigned int nbytes = req->nbytes;
-	int ret;
+	struct hash_alg_common *alg = crypto_hash_alg_common(tfm);
+
+	if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
+		struct crypto_istat_hash *istat = hash_get_stat(alg);
+
+		atomic64_inc(&istat->hash_cnt);
+		atomic64_add(req->nbytes, &istat->hash_tlen);
+	}
 
-	crypto_stats_get(alg);
 	if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
-		ret = -ENOKEY;
-	else
-		ret = crypto_ahash_op(req, tfm->digest, false);
-	crypto_stats_ahash_final(nbytes, ret, alg);
-	return ret;
+		return crypto_hash_errstat(alg, -ENOKEY);
+
+	return crypto_ahash_op(req, tfm->digest, false);
 }
 EXPORT_SYMBOL_GPL(crypto_ahash_digest);
 
@@ -465,8 +469,8 @@ static void crypto_ahash_free_instance(struct crypto_instance *inst)
 	ahash->free(ahash);
 }
 
-#ifdef CONFIG_NET
-static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg)
+static int __maybe_unused crypto_ahash_report(
+	struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_report_hash rhash;
 
@@ -479,12 +483,6 @@ static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg)
 
 	return nla_put(skb, CRYPTOCFGA_REPORT_HASH, sizeof(rhash), &rhash);
 }
-#else
-static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg)
-{
-	return -ENOSYS;
-}
-#endif
 
 static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
 	__maybe_unused;
@@ -498,6 +496,12 @@ static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
 		   __crypto_hash_alg_common(alg)->digestsize);
 }
 
+static int __maybe_unused crypto_ahash_report_stat(
+	struct sk_buff *skb, struct crypto_alg *alg)
+{
+	return crypto_hash_report_stat(skb, alg, "ahash");
+}
+
 static const struct crypto_type crypto_ahash_type = {
 	.extsize = crypto_ahash_extsize,
 	.init_tfm = crypto_ahash_init_tfm,
@@ -505,7 +509,12 @@ static const struct crypto_type crypto_ahash_type = {
 #ifdef CONFIG_PROC_FS
 	.show = crypto_ahash_show,
 #endif
+#ifdef CONFIG_CRYPTO_USER
 	.report = crypto_ahash_report,
+#endif
+#ifdef CONFIG_CRYPTO_STATS
+	.report_stat = crypto_ahash_report_stat,
+#endif
 	.maskclear = ~CRYPTO_ALG_TYPE_MASK,
 	.maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
 	.type = CRYPTO_ALG_TYPE_AHASH,
@@ -534,17 +543,70 @@ int crypto_has_ahash(const char *alg_name, u32 type, u32 mask)
 }
 EXPORT_SYMBOL_GPL(crypto_has_ahash);
 
+struct crypto_ahash *crypto_clone_ahash(struct crypto_ahash *hash)
+{
+	struct hash_alg_common *halg = crypto_hash_alg_common(hash);
+	struct crypto_tfm *tfm = crypto_ahash_tfm(hash);
+	struct crypto_ahash *nhash;
+	struct ahash_alg *alg;
+	int err;
+
+	if (!crypto_hash_alg_has_setkey(halg)) {
+		tfm = crypto_tfm_get(tfm);
+		if (IS_ERR(tfm))
+			return ERR_CAST(tfm);
+
+		return hash;
+	}
+
+	nhash = crypto_clone_tfm(&crypto_ahash_type, tfm);
+
+	if (IS_ERR(nhash))
+		return nhash;
+
+	nhash->init = hash->init;
+	nhash->update = hash->update;
+	nhash->final = hash->final;
+	nhash->finup = hash->finup;
+	nhash->digest = hash->digest;
+	nhash->export = hash->export;
+	nhash->import = hash->import;
+	nhash->setkey = hash->setkey;
+	nhash->reqsize = hash->reqsize;
+
+	if (tfm->__crt_alg->cra_type != &crypto_ahash_type)
+		return crypto_clone_shash_ops_async(nhash, hash);
+
+	err = -ENOSYS;
+	alg = crypto_ahash_alg(hash);
+	if (!alg->clone_tfm)
+		goto out_free_nhash;
+
+	err = alg->clone_tfm(nhash, hash);
+	if (err)
+		goto out_free_nhash;
+
+	return nhash;
+
+out_free_nhash:
+	crypto_free_ahash(nhash);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(crypto_clone_ahash);
+
 static int ahash_prepare_alg(struct ahash_alg *alg)
 {
 	struct crypto_alg *base = &alg->halg.base;
+	int err;
 
-	if (alg->halg.digestsize > HASH_MAX_DIGESTSIZE ||
-	    alg->halg.statesize > HASH_MAX_STATESIZE ||
-	    alg->halg.statesize == 0)
+	if (alg->halg.statesize == 0)
 		return -EINVAL;
 
+	err = hash_prepare_alg(&alg->halg);
+	if (err)
+		return err;
+
 	base->cra_type = &crypto_ahash_type;
-	base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
 	base->cra_flags |= CRYPTO_ALG_TYPE_AHASH;
 
 	return 0;