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crypto: Add userspace report for blkcipher type algorithms 

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Steffen Klassert 2011-09-27 07:41:54 +02:00 committed by Herbert Xu
parent 6238cbaec4
commit 50496a1fab
2 changed files with 35 additions and 0 deletions
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25
crypto/blkcipher.c
View File

@ -24,6 +24,8 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/cryptouser.h>
#include <net/netlink.h>
#include "internal.h"
@ -492,6 +494,28 @@ static int crypto_init_blkcipher_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
return crypto_init_blkcipher_ops_async(tfm);
}
static int crypto_blkcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_blkcipher rblkcipher;
snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "blkcipher");
snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
alg->cra_blkcipher.geniv ?: "<default>");
rblkcipher.blocksize = alg->cra_blocksize;
rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
rblkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
rblkcipher.ivsize = alg->cra_blkcipher.ivsize;
NLA_PUT(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
sizeof(struct crypto_report_blkcipher), &rblkcipher);
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
__attribute__ ((unused));
static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
@ -511,6 +535,7 @@ const struct crypto_type crypto_blkcipher_type = {
#ifdef CONFIG_PROC_FS
.show = crypto_blkcipher_show,
#endif
.report = crypto_blkcipher_report,
};
EXPORT_SYMBOL_GPL(crypto_blkcipher_type);

10
include/linux/cryptouser.h
View File

@ -38,6 +38,7 @@ enum crypto_attr_type_t {
CRYPTOCFGA_PRIORITY_VAL, /* __u32 */
CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */
CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */
CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */
__CRYPTOCFGA_MAX
#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
@ -62,3 +63,12 @@ struct crypto_report_hash {
unsigned int blocksize;
unsigned int digestsize;
};
struct crypto_report_blkcipher {
char type[CRYPTO_MAX_NAME];
char geniv[CRYPTO_MAX_NAME];
unsigned int blocksize;
unsigned int min_keysize;
unsigned int max_keysize;
unsigned int ivsize;
};