Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f4d663ce authored by Steffen Klassert's avatar Steffen Klassert Committed by Herbert Xu
Browse files

crypto: Add userspace report for shash type algorithms 



Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 6c5a86f5

crypto/shash.c

+21 −0
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ 
#include <linux/module.h>

#include <linux/slab.h>

#include <linux/seq_file.h>

#include <linux/cryptouser.h>

#include <net/netlink.h>



#include "internal.h"
@@ -522,6 +524,24 @@ static unsigned int crypto_shash_extsize(struct crypto_alg *alg) 
	return alg->cra_ctxsize;

}



static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg)

{

	struct crypto_report_hash rhash;

	struct shash_alg *salg = __crypto_shash_alg(alg);



	snprintf(rhash.type, CRYPTO_MAX_ALG_NAME, "%s", "shash");

	rhash.blocksize = alg->cra_blocksize;

	rhash.digestsize = salg->digestsize;



	NLA_PUT(skb, CRYPTOCFGA_REPORT_HASH,

		sizeof(struct crypto_report_hash), &rhash);



	return 0;



nla_put_failure:

	return -EMSGSIZE;

}



static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)

	__attribute__ ((unused));

static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
@@ -541,6 +561,7 @@ static const struct crypto_type crypto_shash_type = { 
#ifdef CONFIG_PROC_FS

	.show = crypto_shash_show,

#endif

	.report = crypto_shash_report,

	.maskclear = ~CRYPTO_ALG_TYPE_MASK,

	.maskset = CRYPTO_ALG_TYPE_MASK,

	.type = CRYPTO_ALG_TYPE_SHASH,

include/linux/cryptouser.h

+7 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ enum crypto_attr_type_t { 
	CRYPTOCFGA_UNSPEC,

	CRYPTOCFGA_PRIORITY_VAL,	/* __u32 */

	CRYPTOCFGA_REPORT_LARVAL,	/* struct crypto_report_larval */

	CRYPTOCFGA_REPORT_HASH,		/* struct crypto_report_hash */

	__CRYPTOCFGA_MAX



#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
@@ -55,3 +56,9 @@ struct crypto_user_alg { 
struct crypto_report_larval {

	char type[CRYPTO_MAX_NAME];

};



struct crypto_report_hash {

	char type[CRYPTO_MAX_NAME];

	unsigned int blocksize;

	unsigned int digestsize;

};