/* * 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");