From: Steffen Klassert Subject: [PATCH v4 12/17] crypto: Add userspace report for aead type algorithms Date: Tue, 27 Sep 2011 07:44:27 +0200 Message-ID: <20110927054422.GO1808@secunet.com> References: <20110927052050.GB1808@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]:32981 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752781Ab1I0Foa (ORCPT ); Tue, 27 Sep 2011 01:44:30 -0400 Content-Disposition: inline In-Reply-To: <20110927052050.GB1808@secunet.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Signed-off-by: Steffen Klassert --- crypto/aead.c | 25 +++++++++++++++++++++++++ include/linux/cryptouser.h | 9 +++++++++ 2 files changed, 34 insertions(+), 0 deletions(-) diff --git a/crypto/aead.c b/crypto/aead.c index 6729e8f..bb641bd 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include "internal.h" @@ -109,6 +111,28 @@ static int crypto_init_aead_ops(struct crypto_tfm *tfm, u32 type, u32 mask) return 0; } +static int crypto_aead_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_aead raead; + struct aead_alg *aead = &alg->cra_aead; + + snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "aead"); + snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s", + aead->geniv ?: ""); + + raead.blocksize = alg->cra_blocksize; + raead.maxauthsize = aead->maxauthsize; + raead.ivsize = aead->ivsize; + + NLA_PUT(skb, CRYPTOCFGA_REPORT_AEAD, + sizeof(struct crypto_report_aead), &raead); + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg) __attribute__ ((unused)); static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg) @@ -130,6 +154,7 @@ const struct crypto_type crypto_aead_type = { #ifdef CONFIG_PROC_FS .show = crypto_aead_show, #endif + .report = crypto_aead_report, }; EXPORT_SYMBOL_GPL(crypto_aead_type); diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index a96a1a1..48030c7 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -39,6 +39,7 @@ enum crypto_attr_type_t { CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */ CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */ CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */ + CRYPTOCFGA_REPORT_AEAD, /* struct crypto_report_aead */ __CRYPTOCFGA_MAX #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1) @@ -72,3 +73,11 @@ struct crypto_report_blkcipher { unsigned int max_keysize; unsigned int ivsize; }; + +struct crypto_report_aead { + char type[CRYPTO_MAX_NAME]; + char geniv[CRYPTO_MAX_NAME]; + unsigned int blocksize; + unsigned int maxauthsize; + unsigned int ivsize; +}; -- 1.7.0.4