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List: linux-crypto-vger
Subject: [PATCH v4 09/17] crypto: Add userspace report for blkcipher type
From: Steffen Klassert <steffen.klassert () secunet ! com>
Date: 2011-09-27 5:41:54
Message-ID: 20110927054153.GL1808 () secunet ! com
[Download RAW message or body]
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
crypto/blkcipher.c | 25 +++++++++++++++++++++++++
include/linux/cryptouser.h | 10 ++++++++++
2 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 7a72192..2572d26 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -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);
diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h
index ee46882..a96a1a1 100644
--- a/include/linux/cryptouser.h
+++ b/include/linux/cryptouser.h
@@ -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;
+};
--
1.7.0.4
--
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