crypto: hash - Remove legacy hash/digest code

6941c3a0 disabled compilation of the legacy digest code but didn't
actually remove it.  Rectify this.  Also, remove the crypto_hash_type
extern declaration from algapi.h now that the struct is gone.

Signed-off-by: Benjamin Gilbert <bgilbert@cs.cmu.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 183 deletions

diff --git a/crypto/hash.c b/crypto/hash.c
deleted file mode 100644
index cb86b19..0000000
--- a/crypto/hash.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Cryptographic Hash operations.
- * 
- * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
- * any later version.
- */
-
-#include <crypto/internal/hash.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-
-#include "internal.h"
-
-static unsigned int crypto_hash_ctxsize(struct crypto_alg *alg, u32 type,
-					u32 mask)
-{
-	return alg->cra_ctxsize;
-}
-
-static int hash_setkey_unaligned(struct crypto_hash *crt, const u8 *key,
-		                 unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_hash_tfm(crt);
-	struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-	unsigned long alignmask = crypto_hash_alignmask(crt);
-	int ret;
-	u8 *buffer, *alignbuffer;
-	unsigned long absize;
-
-	absize = keylen + alignmask;
-	buffer = kmalloc(absize, GFP_ATOMIC);
-	if (!buffer)
-		return -ENOMEM;
-
-	alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
-	memcpy(alignbuffer, key, keylen);
-	ret = alg->setkey(crt, alignbuffer, keylen);
-	memset(alignbuffer, 0, keylen);
-	kfree(buffer);
-	return ret;
-}
-
-static int hash_setkey(struct crypto_hash *crt, const u8 *key,
-		       unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_hash_tfm(crt);
-	struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-	unsigned long alignmask = crypto_hash_alignmask(crt);
-
-	if ((unsigned long)key & alignmask)
-		return hash_setkey_unaligned(crt, key, keylen);
-
-	return alg->setkey(crt, key, keylen);
-}
-
-static int hash_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
-			unsigned int keylen)
-{
-	struct crypto_tfm  *tfm      = crypto_ahash_tfm(tfm_async);
-	struct crypto_hash *tfm_hash = __crypto_hash_cast(tfm);
-	struct hash_alg    *alg      = &tfm->__crt_alg->cra_hash;
-
-	return alg->setkey(tfm_hash, key, keylen);
-}
-
-static int hash_async_init(struct ahash_request *req)
-{
-	struct crypto_tfm *tfm = req->base.tfm;
-	struct hash_alg   *alg = &tfm->__crt_alg->cra_hash;
-	struct hash_desc  desc = {
-		.tfm = __crypto_hash_cast(tfm),
-		.flags = req->base.flags,
-	};
-
-	return alg->init(&desc);
-}
-
-static int hash_async_update(struct ahash_request *req)
-{
-	struct crypto_tfm *tfm = req->base.tfm;
-	struct hash_alg   *alg = &tfm->__crt_alg->cra_hash;
-	struct hash_desc  desc = {
-		.tfm = __crypto_hash_cast(tfm),
-		.flags = req->base.flags,
-	};
-
-	return alg->update(&desc, req->src, req->nbytes);
-}
-
-static int hash_async_final(struct ahash_request *req)
-{
-	struct crypto_tfm *tfm = req->base.tfm;
-	struct hash_alg   *alg = &tfm->__crt_alg->cra_hash;
-	struct hash_desc  desc = {
-		.tfm = __crypto_hash_cast(tfm),
-		.flags = req->base.flags,
-	};
-
-	return alg->final(&desc, req->result);
-}
-
-static int hash_async_digest(struct ahash_request *req)
-{
-	struct crypto_tfm *tfm = req->base.tfm;
-	struct hash_alg   *alg = &tfm->__crt_alg->cra_hash;
-	struct hash_desc  desc = {
-		.tfm = __crypto_hash_cast(tfm),
-		.flags = req->base.flags,
-	};
-
-	return alg->digest(&desc, req->src, req->nbytes, req->result);
-}
-
-static int crypto_init_hash_ops_async(struct crypto_tfm *tfm)
-{
-	struct ahash_tfm *crt = &tfm->crt_ahash;
-	struct hash_alg  *alg = &tfm->__crt_alg->cra_hash;
-
-	crt->init       = hash_async_init;
-	crt->update     = hash_async_update;
-	crt->final      = hash_async_final;
-	crt->digest     = hash_async_digest;
-	crt->setkey     = hash_async_setkey;
-	crt->digestsize = alg->digestsize;
-
-	return 0;
-}
-
-static int crypto_init_hash_ops_sync(struct crypto_tfm *tfm)
-{
-	struct hash_tfm *crt = &tfm->crt_hash;
-	struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
-	crt->init       = alg->init;
-	crt->update     = alg->update;
-	crt->final      = alg->final;
-	crt->digest     = alg->digest;
-	crt->setkey     = hash_setkey;
-	crt->digestsize = alg->digestsize;
-
-	return 0;
-}
-
-static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
-{
-	struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
-	if (alg->digestsize > PAGE_SIZE / 8)
-		return -EINVAL;
-
-	if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) != CRYPTO_ALG_TYPE_HASH_MASK)
-		return crypto_init_hash_ops_async(tfm);
-	else
-		return crypto_init_hash_ops_sync(tfm);
-}
-
-static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
-	__attribute__ ((unused));
-static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
-{
-	seq_printf(m, "type         : hash\n");
-	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
-	seq_printf(m, "digestsize   : %u\n", alg->cra_hash.digestsize);
-}
-
-const struct crypto_type crypto_hash_type = {
-	.ctxsize = crypto_hash_ctxsize,
-	.init = crypto_init_hash_ops,
-#ifdef CONFIG_PROC_FS
-	.show = crypto_hash_show,
-#endif
-};
-EXPORT_SYMBOL_GPL(crypto_hash_type);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Generic cryptographic hash type");