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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>
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@ -24,6 +24,8 @@
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#include <linux/seq_file.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/cryptouser.h>
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#include <net/netlink.h>
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#include "internal.h"
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@ -492,6 +494,28 @@ static int crypto_init_blkcipher_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
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return crypto_init_blkcipher_ops_async(tfm);
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}
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static int crypto_blkcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
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{
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struct crypto_report_blkcipher rblkcipher;
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snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "blkcipher");
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snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
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alg->cra_blkcipher.geniv ?: "<default>");
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rblkcipher.blocksize = alg->cra_blocksize;
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rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
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rblkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
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rblkcipher.ivsize = alg->cra_blkcipher.ivsize;
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NLA_PUT(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
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sizeof(struct crypto_report_blkcipher), &rblkcipher);
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return 0;
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nla_put_failure:
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return -EMSGSIZE;
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}
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static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
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__attribute__ ((unused));
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static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
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@ -511,6 +535,7 @@ const struct crypto_type crypto_blkcipher_type = {
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#ifdef CONFIG_PROC_FS
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.show = crypto_blkcipher_show,
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#endif
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.report = crypto_blkcipher_report,
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};
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EXPORT_SYMBOL_GPL(crypto_blkcipher_type);
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@ -38,6 +38,7 @@ enum crypto_attr_type_t {
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CRYPTOCFGA_PRIORITY_VAL, /* __u32 */
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CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */
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CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */
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CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */
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__CRYPTOCFGA_MAX
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#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
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@ -62,3 +63,12 @@ struct crypto_report_hash {
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unsigned int blocksize;
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unsigned int digestsize;
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};
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struct crypto_report_blkcipher {
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char type[CRYPTO_MAX_NAME];
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char geniv[CRYPTO_MAX_NAME];
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unsigned int blocksize;
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unsigned int min_keysize;
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unsigned int max_keysize;
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unsigned int ivsize;
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};
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