From: Steffen Klassert Subject: [PATCH v2 14/15] crypto: Add userspace report for cipher type algorithms Date: Wed, 17 Aug 2011 14:17:53 +0200 Message-ID: <20110817121753.GL16877@secunet.com> References: <20110817120859.GX16877@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]:50775 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752390Ab1HQMQ6 (ORCPT ); Wed, 17 Aug 2011 08:16:58 -0400 Content-Disposition: inline In-Reply-To: <20110817120859.GX16877@secunet.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Signed-off-by: Steffen Klassert --- crypto/crypto_user.c | 29 +++++++++++++++++++++++++++++ include/linux/cryptouser.h | 8 ++++++++ 2 files changed, 37 insertions(+), 0 deletions(-) diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index 68d405d..9d10d2f 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -69,6 +69,25 @@ static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p) return alg; } +static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_cipher rcipher; + + snprintf(rcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "cipher"); + + rcipher.blocksize = alg->cra_blocksize; + rcipher.min_keysize = alg->cra_cipher.cia_min_keysize; + rcipher.max_keysize = alg->cra_cipher.cia_max_keysize; + + NLA_PUT(skb, CRYPTOCFGA_REPORT_CIPHER, + sizeof(struct crypto_report_cipher), &rcipher); + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static int crypto_report_one(struct crypto_alg *alg, struct crypto_report_base *rb, struct sk_buff *skb) { @@ -96,6 +115,16 @@ static int crypto_report_one(struct crypto_alg *alg, if (alg->cra_type && alg->cra_type->report) { if (alg->cra_type->report(skb, alg)) goto nla_put_failure; + + goto out; + } + + switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) { + case CRYPTO_ALG_TYPE_CIPHER: + if (crypto_report_cipher(skb, alg)) + goto nla_put_failure; + + break; } out: diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index 761e9df..4af8222 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -43,6 +43,7 @@ enum crypto_attr_type_t { CRYPTOCFGA_REPORT_NIVAEAD, /* struct crypto_report_aead */ CRYPTOCFGA_REPORT_PCOMPRESS, /* struct crypto_report_comp */ CRYPTOCFGA_REPORT_RNG, /* struct crypto_report_rng */ + CRYPTOCFGA_REPORT_CIPHER, /* struct crypto_report_cipher */ __CRYPTOCFGA_MAX #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1) @@ -84,6 +85,13 @@ struct crypto_report_ahash { unsigned int digestsize; }; +struct crypto_report_cipher { + char type[CRYPTO_MAX_ALG_NAME]; + unsigned int blocksize; + unsigned int min_keysize; + unsigned int max_keysize; +}; + struct crypto_report_blkcipher { char type[CRYPTO_MAX_NAME]; char geniv[CRYPTO_MAX_NAME]; -- 1.7.0.4