From: Steffen Klassert Subject: [PATCH 07/16] crypto: Add userspace report for ahash type algorithms Date: Thu, 11 Aug 2011 13:30:31 +0200 Message-ID: <20110811113030.GK16877@secunet.com> References: <20110811112603.GD16877@secunet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-crypto@vger.kernel.org To: Herbert Xu Return-path: Received: from a.mx.secunet.com ([195.81.216.161]:44157 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754649Ab1HKL36 (ORCPT ); Thu, 11 Aug 2011 07:29:58 -0400 Content-Disposition: inline In-Reply-To: <20110811112603.GD16877@secunet.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Signed-off-by: Steffen Klassert --- crypto/ahash.c | 27 +++++++++++++++++++++++++++ include/linux/cryptouser.h | 8 ++++++++ 2 files changed, 35 insertions(+), 0 deletions(-) diff --git a/crypto/ahash.c b/crypto/ahash.c index f669822..5dce6a0 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include "internal.h" @@ -397,6 +399,28 @@ static unsigned int crypto_ahash_extsize(struct crypto_alg *alg) return sizeof(struct crypto_shash *); } +static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg) + __attribute__ ((unused)); +static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_ahash rahash; + + snprintf(rahash.type, CRYPTO_MAX_ALG_NAME, "%s", "ahash"); + snprintf(rahash.async, CRYPTO_MAX_ALG_NAME, "%s", + alg->cra_flags & CRYPTO_ALG_ASYNC ? "yes" : "no"); + + rahash.blocksize = alg->cra_blocksize; + rahash.digestsize = __crypto_hash_alg_common(alg)->digestsize; + + NLA_PUT(skb, CRYPTOCFGA_REPORT_AHASH, + sizeof(struct crypto_report_ahash), &rahash); + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg) __attribute__ ((unused)); static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg) @@ -415,6 +439,9 @@ const struct crypto_type crypto_ahash_type = { #ifdef CONFIG_PROC_FS .show = crypto_ahash_show, #endif +#ifdef CONFIG_CRYPTO_USER + .report = crypto_ahash_report, +#endif .maskclear = ~CRYPTO_ALG_TYPE_MASK, .maskset = CRYPTO_ALG_TYPE_AHASH_MASK, .type = CRYPTO_ALG_TYPE_AHASH, diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index 8f2b4a1..94ffb7b 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -36,6 +36,7 @@ enum crypto_attr_type_t { CRYPTOCFGA_PRIORITY_VAL, /* __u32 */ CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */ CRYPTOCFGA_REPORT_SHASH, /* struct crypto_report_shash */ + CRYPTOCFGA_REPORT_AHASH, /* struct crypto_report_ahash */ __CRYPTOCFGA_MAX #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1) @@ -69,3 +70,10 @@ struct crypto_report_shash { unsigned int blocksize; unsigned int digestsize; }; + +struct crypto_report_ahash { + char type[CRYPTO_MAX_NAME]; + char async[CRYPTO_MAX_NAME]; + unsigned int blocksize; + unsigned int digestsize; +}; -- 1.7.0.4