mirror of
https://github.com/adulau/aha.git
synced 2024-12-26 18:56:14 +00:00
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>This commit is contained in:
Benjamin Gilbert
Herbert Xu
parent
667b6294bf
commit
2141b6309b
3 changed files with 0 additions and 424 deletions
240
crypto/digest.c
240
crypto/digest.c
|
|
@ -1,240 +0,0 @@
|
|||
/*
|
||||
* Cryptographic API.
|
||||
*
|
||||
* Digest operations.
|
||||
*
|
||||
* Copyright (c) 2002 James Morris <jmorris@intercode.com.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 <crypto/scatterwalk.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/hardirq.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/scatterlist.h>
|
||||
|
||||
#include "internal.h"
|
||||
|
||||
static int init(struct hash_desc *desc)
|
||||
{
|
||||
struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
|
||||
|
||||
tfm->__crt_alg->cra_digest.dia_init(tfm);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int update2(struct hash_desc *desc,
|
||||
struct scatterlist *sg, unsigned int nbytes)
|
||||
{
|
||||
struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
|
||||
unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
|
||||
|
||||
if (!nbytes)
|
||||
return 0;
|
||||
|
||||
for (;;) {
|
||||
struct page *pg = sg_page(sg);
|
||||
unsigned int offset = sg->offset;
|
||||
unsigned int l = sg->length;
|
||||
|
||||
if (unlikely(l > nbytes))
|
||||
l = nbytes;
|
||||
nbytes -= l;
|
||||
|
||||
do {
|
||||
unsigned int bytes_from_page = min(l, ((unsigned int)
|
||||
(PAGE_SIZE)) -
|
||||
offset);
|
||||
char *src = crypto_kmap(pg, 0);
|
||||
char *p = src + offset;
|
||||
|
||||
if (unlikely(offset & alignmask)) {
|
||||
unsigned int bytes =
|
||||
alignmask + 1 - (offset & alignmask);
|
||||
bytes = min(bytes, bytes_from_page);
|
||||
tfm->__crt_alg->cra_digest.dia_update(tfm, p,
|
||||
bytes);
|
||||
p += bytes;
|
||||
bytes_from_page -= bytes;
|
||||
l -= bytes;
|
||||
}
|
||||
tfm->__crt_alg->cra_digest.dia_update(tfm, p,
|
||||
bytes_from_page);
|
||||
crypto_kunmap(src, 0);
|
||||
crypto_yield(desc->flags);
|
||||
offset = 0;
|
||||
pg++;
|
||||
l -= bytes_from_page;
|
||||
} while (l > 0);
|
||||
|
||||
if (!nbytes)
|
||||
break;
|
||||
sg = scatterwalk_sg_next(sg);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int update(struct hash_desc *desc,
|
||||
struct scatterlist *sg, unsigned int nbytes)
|
||||
{
|
||||
if (WARN_ON_ONCE(in_irq()))
|
||||
return -EDEADLK;
|
||||
return update2(desc, sg, nbytes);
|
||||
}
|
||||
|
||||
static int final(struct hash_desc *desc, u8 *out)
|
||||
{
|
||||
struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
|
||||
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
|
||||
struct digest_alg *digest = &tfm->__crt_alg->cra_digest;
|
||||
|
||||
if (unlikely((unsigned long)out & alignmask)) {
|
||||
unsigned long align = alignmask + 1;
|
||||
unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm);
|
||||
u8 *dst = (u8 *)ALIGN(addr, align) +
|
||||
ALIGN(tfm->__crt_alg->cra_ctxsize, align);
|
||||
|
||||
digest->dia_final(tfm, dst);
|
||||
memcpy(out, dst, digest->dia_digestsize);
|
||||
} else
|
||||
digest->dia_final(tfm, out);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nosetkey(struct crypto_hash *tfm, const u8 *key, unsigned int keylen)
|
||||
{
|
||||
crypto_hash_clear_flags(tfm, CRYPTO_TFM_RES_MASK);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
static int setkey(struct crypto_hash *hash, const u8 *key, unsigned int keylen)
|
||||
{
|
||||
struct crypto_tfm *tfm = crypto_hash_tfm(hash);
|
||||
|
||||
crypto_hash_clear_flags(hash, CRYPTO_TFM_RES_MASK);
|
||||
return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen);
|
||||
}
|
||||
|
||||
static int digest(struct hash_desc *desc,
|
||||
struct scatterlist *sg, unsigned int nbytes, u8 *out)
|
||||
{
|
||||
if (WARN_ON_ONCE(in_irq()))
|
||||
return -EDEADLK;
|
||||
|
||||
init(desc);
|
||||
update2(desc, sg, nbytes);
|
||||
return final(desc, out);
|
||||
}
|
||||
|
||||
int crypto_init_digest_ops(struct crypto_tfm *tfm)
|
||||
{
|
||||
struct hash_tfm *ops = &tfm->crt_hash;
|
||||
struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
|
||||
|
||||
if (dalg->dia_digestsize > PAGE_SIZE / 8)
|
||||
return -EINVAL;
|
||||
|
||||
ops->init = init;
|
||||
ops->update = update;
|
||||
ops->final = final;
|
||||
ops->digest = digest;
|
||||
ops->setkey = dalg->dia_setkey ? setkey : nosetkey;
|
||||
ops->digestsize = dalg->dia_digestsize;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void crypto_exit_digest_ops(struct crypto_tfm *tfm)
|
||||
{
|
||||
}
|
||||
|
||||
static int digest_async_nosetkey(struct crypto_ahash *tfm_async, const u8 *key,
|
||||
unsigned int keylen)
|
||||
{
|
||||
crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
static int digest_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
|
||||
unsigned int keylen)
|
||||
{
|
||||
struct crypto_tfm *tfm = crypto_ahash_tfm(tfm_async);
|
||||
struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
|
||||
|
||||
crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
|
||||
return dalg->dia_setkey(tfm, key, keylen);
|
||||
}
|
||||
|
||||
static int digest_async_init(struct ahash_request *req)
|
||||
{
|
||||
struct crypto_tfm *tfm = req->base.tfm;
|
||||
struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
|
||||
|
||||
dalg->dia_init(tfm);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int digest_async_update(struct ahash_request *req)
|
||||
{
|
||||
struct crypto_tfm *tfm = req->base.tfm;
|
||||
struct hash_desc desc = {
|
||||
.tfm = __crypto_hash_cast(tfm),
|
||||
.flags = req->base.flags,
|
||||
};
|
||||
|
||||
update(&desc, req->src, req->nbytes);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int digest_async_final(struct ahash_request *req)
|
||||
{
|
||||
struct crypto_tfm *tfm = req->base.tfm;
|
||||
struct hash_desc desc = {
|
||||
.tfm = __crypto_hash_cast(tfm),
|
||||
.flags = req->base.flags,
|
||||
};
|
||||
|
||||
final(&desc, req->result);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int digest_async_digest(struct ahash_request *req)
|
||||
{
|
||||
struct crypto_tfm *tfm = req->base.tfm;
|
||||
struct hash_desc desc = {
|
||||
.tfm = __crypto_hash_cast(tfm),
|
||||
.flags = req->base.flags,
|
||||
};
|
||||
|
||||
return digest(&desc, req->src, req->nbytes, req->result);
|
||||
}
|
||||
|
||||
int crypto_init_digest_ops_async(struct crypto_tfm *tfm)
|
||||
{
|
||||
struct ahash_tfm *crt = &tfm->crt_ahash;
|
||||
struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
|
||||
|
||||
if (dalg->dia_digestsize > PAGE_SIZE / 8)
|
||||
return -EINVAL;
|
||||
|
||||
crt->init = digest_async_init;
|
||||
crt->update = digest_async_update;
|
||||
crt->final = digest_async_final;
|
||||
crt->digest = digest_async_digest;
|
||||
crt->setkey = dalg->dia_setkey ? digest_async_setkey :
|
||||
digest_async_nosetkey;
|
||||
crt->digestsize = dalg->dia_digestsize;
|
||||
|
||||
return 0;
|
||||
}
|
||||
183
crypto/hash.c
183
crypto/hash.c
|
|
@ -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");
|
||||
|
|
@ -106,7 +106,6 @@ struct blkcipher_walk {
|
|||
extern const struct crypto_type crypto_ablkcipher_type;
|
||||
extern const struct crypto_type crypto_aead_type;
|
||||
extern const struct crypto_type crypto_blkcipher_type;
|
||||
extern const struct crypto_type crypto_hash_type;
|
||||
|
||||
void crypto_mod_put(struct crypto_alg *alg);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue