27d2a33007
This patch adds support for multiple frontend types for each backend algorithm by passing the type and mask through to the backend type init function. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
|
|
* 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 <linux/errno.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.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 crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
|
|
{
|
|
struct hash_tfm *crt = &tfm->crt_hash;
|
|
struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
|
|
|
|
if (alg->digestsize > crypto_tfm_alg_blocksize(tfm))
|
|
return -EINVAL;
|
|
|
|
crt->init = alg->init;
|
|
crt->update = alg->update;
|
|
crt->final = alg->final;
|
|
crt->digest = alg->digest;
|
|
crt->setkey = alg->setkey;
|
|
crt->digestsize = alg->digestsize;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
|
|
__attribute_used__;
|
|
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");
|