From nobody Tue Feb 10 02:43:59 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1492393472009730.6833302680006; Sun, 16 Apr 2017 18:44:32 -0700 (PDT) Received: from localhost ([::1]:34254 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1czviQ-0002tP-Ol for importer@patchew.org; Sun, 16 Apr 2017 21:44:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57719) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1czvYN-0003s0-CU for qemu-devel@nongnu.org; Sun, 16 Apr 2017 21:34:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1czvYL-0005ZH-HQ for qemu-devel@nongnu.org; Sun, 16 Apr 2017 21:34:07 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:3480 helo=dggrg01-dlp.huawei.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1czvYK-0005Wm-KM for qemu-devel@nongnu.org; Sun, 16 Apr 2017 21:34:05 -0400 Received: from 172.30.72.56 (EHLO DGGEML402-HUB.china.huawei.com) ([172.30.72.56]) by dggrg01-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id AMW01830; Mon, 17 Apr 2017 09:34:01 +0800 (CST) Received: from localhost (10.177.246.209) by DGGEML402-HUB.china.huawei.com (10.3.17.38) with Microsoft SMTP Server id 14.3.301.0; Mon, 17 Apr 2017 09:33:51 +0800 From: "Longpeng(Mike)" To: Date: Mon, 17 Apr 2017 09:33:22 +0800 Message-ID: <1492392806-53720-15-git-send-email-longpeng2@huawei.com> X-Mailer: git-send-email 1.8.4.msysgit.0 In-Reply-To: <1492392806-53720-1-git-send-email-longpeng2@huawei.com> References: <1492392806-53720-1-git-send-email-longpeng2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.246.209] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.58F41B8A.0009, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: a11c574621c01764cf36b93f1b7a5e1e X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 45.249.212.187 Subject: [Qemu-devel] [PATCH v2 for-2.10 14/18] crypto: hash: add afalg-backend hash support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: weidong.huang@huawei.com, mst@redhat.com, qemu-devel@nongnu.org, armbru@redhat.com, arei.gonglei@huawei.com, "Longpeng\(Mike\)" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Adds afalg-backend hash support: introduces some private APIs firstly, and then intergrates them into qcrypto_hash_afalg_driver. Signed-off-by: Longpeng(Mike) --- crypto/Makefile.objs | 1 + crypto/afalgpriv.h | 1 + crypto/hash-afalg.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++= ++++ crypto/hash.c | 11 ++++ crypto/hashpriv.h | 4 ++ 5 files changed, 168 insertions(+) create mode 100644 crypto/hash-afalg.c diff --git a/crypto/Makefile.objs b/crypto/Makefile.objs index d2e8fa8..2b99e08 100644 --- a/crypto/Makefile.objs +++ b/crypto/Makefile.objs @@ -12,6 +12,7 @@ crypto-obj-y +=3D desrfb.o crypto-obj-y +=3D cipher.o crypto-obj-$(CONFIG_AF_ALG) +=3D afalg.o crypto-obj-$(CONFIG_AF_ALG) +=3D cipher-afalg.o +crypto-obj-$(CONFIG_AF_ALG) +=3D hash-afalg.o crypto-obj-y +=3D tlscreds.o crypto-obj-y +=3D tlscredsanon.o crypto-obj-y +=3D tlscredsx509.o diff --git a/crypto/afalgpriv.h b/crypto/afalgpriv.h index 7db0597..71ec267 100644 --- a/crypto/afalgpriv.h +++ b/crypto/afalgpriv.h @@ -24,6 +24,7 @@ #endif =20 #define AFALG_TYPE_CIPHER "skcipher" +#define AFALG_TYPE_HASH "hash" =20 #define ALG_OPTYPE_LEN 4 #define ALG_MSGIV_LEN(len) (sizeof(struct af_alg_iv) + (len)) diff --git a/crypto/hash-afalg.c b/crypto/hash-afalg.c new file mode 100644 index 0000000..1d0e052 --- /dev/null +++ b/crypto/hash-afalg.c @@ -0,0 +1,151 @@ +/* + * QEMU Crypto af_alg-backend hash support + * + * Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD. + * + * Authors: + * Longpeng(Mike) + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ +#include "qemu/osdep.h" +#include "qemu/iov.h" +#include "qemu/sockets.h" +#include "qemu-common.h" +#include "qapi/error.h" +#include "crypto/hash.h" +#include "hashpriv.h" + +static char * +qcrypto_afalg_hash_format_name(QCryptoHashAlgorithm alg, + Error **errp) +{ + char *name; + const char *alg_name =3D NULL; + int ret; + + switch (alg) { + case QCRYPTO_HASH_ALG_MD5: + alg_name =3D "md5"; + break; + case QCRYPTO_HASH_ALG_SHA1: + alg_name =3D "sha1"; + break; + case QCRYPTO_HASH_ALG_SHA224: + alg_name =3D "sha224"; + break; + case QCRYPTO_HASH_ALG_SHA256: + alg_name =3D "sha256"; + break; + case QCRYPTO_HASH_ALG_SHA384: + alg_name =3D "sha384"; + break; + case QCRYPTO_HASH_ALG_SHA512: + alg_name =3D "sha512"; + break; + case QCRYPTO_HASH_ALG_RIPEMD160: + alg_name =3D "rmd160"; + break; + + default: + error_setg(errp, "Unsupported hash algorithm %d", alg); + return NULL; + } + + name =3D (char *)g_new0(int8_t, SALG_NAME_LEN_MAX); + ret =3D snprintf(name, SALG_NAME_LEN_MAX, "%s", alg_name); + if (ret < 0 || ret >=3D SALG_NAME_LEN_MAX) { + error_setg(errp, "Build hash name(name=3D'%s') failed", + alg_name); + g_free(name); + return NULL; + } + + return name; +} + +static QCryptoAFAlg * +qcrypto_afalg_hash_ctx_new(QCryptoHashAlgorithm alg, Error **errp) +{ + QCryptoAFAlg *afalg; + char *name; + + name =3D qcrypto_afalg_hash_format_name(alg, errp); + if (!name) { + return NULL; + } + + afalg =3D qcrypto_afalg_comm_alloc(AFALG_TYPE_HASH, name, errp); + if (!afalg) { + goto error; + } + + /* prepare msg header */ + afalg->msg =3D g_new0(struct msghdr, 1); + +cleanup: + g_free(name); + return afalg; + +error: + qcrypto_afalg_comm_free(afalg); + goto cleanup; +} + +static int +qcrypto_afalg_hash_bytesv(QCryptoHashAlgorithm alg, + const struct iovec *iov, + size_t niov, uint8_t **result, + size_t *resultlen, + Error **errp) +{ + QCryptoAFAlg *afalg; + struct iovec outv; + int ret =3D 0; + const int except_len =3D qcrypto_hash_digest_len(alg); + + if (*resultlen =3D=3D 0) { + *resultlen =3D except_len; + *result =3D g_new0(uint8_t, *resultlen); + } else if (*resultlen !=3D except_len) { + error_setg(errp, + "Result buffer size %zu is not match hash %d", + *resultlen, except_len); + return -1; + } + + afalg =3D qcrypto_afalg_hash_ctx_new(alg, errp); + if (afalg =3D=3D NULL) { + return -1; + } + + /* send data to kernel's crypto core */ + ret =3D iov_send_recv(afalg->opfd, iov, niov, + 0, iov_size(iov, niov), true); + if (ret < 0) { + error_setg_errno(errp, errno, "Send data to afalg-core failed"); + goto out; + } + + /* hash && get result */ + outv.iov_base =3D *result; + outv.iov_len =3D *resultlen; + afalg->msg->msg_iov =3D &outv; + afalg->msg->msg_iovlen =3D 1; + ret =3D recvmsg(afalg->opfd, afalg->msg, 0); + if (ret !=3D -1) { + ret =3D 0; + } else { + error_setg_errno(errp, errno, "Recv result from afalg-core failed"= ); + } + +out: + qcrypto_afalg_comm_free(afalg); + return ret; +} + +QCryptoHashDriver qcrypto_hash_afalg_driver =3D { + .hash_bytesv =3D qcrypto_afalg_hash_bytesv, +}; diff --git a/crypto/hash.c b/crypto/hash.c index c43fd87..ba30c9b 100644 --- a/crypto/hash.c +++ b/crypto/hash.c @@ -46,6 +46,17 @@ int qcrypto_hash_bytesv(QCryptoHashAlgorithm alg, size_t *resultlen, Error **errp) { +#ifdef CONFIG_AF_ALG + int ret; + + ret =3D qcrypto_hash_afalg_driver.hash_bytesv(alg, iov, niov, + result, resultlen, + errp); + if (ret =3D=3D 0) { + return ret; + } +#endif + return qcrypto_hash_lib_driver.hash_bytesv(alg, iov, niov, result, resultlen, errp); diff --git a/crypto/hashpriv.h b/crypto/hashpriv.h index 5e505e0..d23662f 100644 --- a/crypto/hashpriv.h +++ b/crypto/hashpriv.h @@ -15,6 +15,8 @@ #ifndef QCRYPTO_HASHPRIV_H #define QCRYPTO_HASHPRIV_H =20 +#include "afalgpriv.h" + typedef struct QCryptoHashDriver QCryptoHashDriver; =20 struct QCryptoHashDriver { @@ -28,4 +30,6 @@ struct QCryptoHashDriver { =20 extern QCryptoHashDriver qcrypto_hash_lib_driver; =20 +extern QCryptoHashDriver qcrypto_hash_afalg_driver; + #endif --=20 1.8.3.1