From patchwork Mon Apr 10 09:00:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Longpeng(Mike)" X-Patchwork-Id: 9672185 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F4144600CB for ; Mon, 10 Apr 2017 09:12:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E766C28414 for ; Mon, 10 Apr 2017 09:12:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DC3D528418; Mon, 10 Apr 2017 09:12:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7170228414 for ; Mon, 10 Apr 2017 09:12:33 +0000 (UTC) Received: from localhost ([::1]:33120 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxVNA-0007z0-HE for patchwork-qemu-devel@patchwork.kernel.org; Mon, 10 Apr 2017 05:12:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54412) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxVC5-0008WL-0s for qemu-devel@nongnu.org; Mon, 10 Apr 2017 05:01:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxVBz-0002D0-8h for qemu-devel@nongnu.org; Mon, 10 Apr 2017 05:01:05 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:3420 helo=dggrg02-dlp.huawei.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1cxVBy-0002BU-BF for qemu-devel@nongnu.org; Mon, 10 Apr 2017 05:00:59 -0400 Received: from 172.30.72.54 (EHLO DGGEML404-HUB.china.huawei.com) ([172.30.72.54]) by dggrg02-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id ALI34412; Mon, 10 Apr 2017 17:00:54 +0800 (CST) Received: from localhost (10.177.246.209) by DGGEML404-HUB.china.huawei.com (10.3.17.39) with Microsoft SMTP Server id 14.3.301.0; Mon, 10 Apr 2017 17:00:48 +0800 From: "Longpeng(Mike)" To: Date: Mon, 10 Apr 2017 17:00:47 +0800 Message-ID: <1491814847-63240-1-git-send-email-longpeng2@huawei.com> X-Mailer: git-send-email 1.8.4.msysgit.0 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=0001.0A0B0202.58EB49C6.0149, 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: 9585820653cf95fa4e334679655b1f69 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 45.249.212.188 Subject: [Qemu-devel] [PATCH for-2.10 13/19] crypto: introduce some common functions for af_alg backend 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: "Longpeng\(Mike\)" , xuquan8@huawei.com, arei.gonglei@huawei.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch introduces some common functions for af_alg backend, they would be used in af_alg-backend cipher/hash/hmac latter. Signed-off-by: Longpeng(Mike) --- crypto/Makefile.objs | 1 + crypto/afalg-comm.c | 71 +++++++++++++++++++++++++++++++++++++++++++++ include/crypto/afalg-comm.h | 61 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 133 insertions(+) create mode 100644 crypto/afalg-comm.c create mode 100644 include/crypto/afalg-comm.h diff --git a/crypto/Makefile.objs b/crypto/Makefile.objs index 1f749f2..6f244a3 100644 --- a/crypto/Makefile.objs +++ b/crypto/Makefile.objs @@ -10,6 +10,7 @@ crypto-obj-$(if $(CONFIG_NETTLE),n,$(if $(CONFIG_GCRYPT_HMAC),n,y)) += hmac-glib crypto-obj-y += aes.o crypto-obj-y += desrfb.o crypto-obj-y += cipher.o +crypto-obj-$(CONFIG_AF_ALG) += afalg-comm.o crypto-obj-y += tlscreds.o crypto-obj-y += tlscredsanon.o crypto-obj-y += tlscredsx509.o diff --git a/crypto/afalg-comm.c b/crypto/afalg-comm.c new file mode 100644 index 0000000..27bc88c --- /dev/null +++ b/crypto/afalg-comm.c @@ -0,0 +1,71 @@ +/* + * QEMU Crypto af_alg 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/cutils.h" +#include "qemu/sockets.h" +#include "qapi/error.h" +#include "crypto/afalg-comm.h" + +void afalg_comm_format_type(AfalgSocketAddress *afalg, + const char *type) +{ + afalg->type = (char *)g_new0(int8_t, SALG_TYPE_LEN_MAX); + pstrcpy(afalg->type, SALG_TYPE_LEN_MAX, type); +} + +void afalg_comm_free(QCryptoAfalg *afalg) +{ + if (afalg) { + if (afalg->msg) { + g_free(afalg->msg->msg_control); + g_free(afalg->msg); + } + + if (afalg->tfmfd != -1) { + closesocket(afalg->tfmfd); + } + + if (afalg->opfd != -1) { + closesocket(afalg->opfd); + } + + g_free(afalg); + } +} + +QCryptoAfalg *afalg_comm_alloc(SocketAddress *saddr) +{ + QCryptoAfalg *afalg = NULL; + Error *err = NULL; + + afalg = g_new0(QCryptoAfalg, 1); + /* initilize crypto API socket */ + afalg->opfd = -1; + afalg->tfmfd = socket_bind(saddr, &err); + if (afalg->tfmfd == -1) { + goto error; + } + + afalg->opfd = qemu_accept(afalg->tfmfd, NULL, 0); + if (afalg->opfd == -1) { + closesocket(afalg->tfmfd); + goto error; + } + + return afalg; + +error: + error_free(err); + afalg_comm_free(afalg); + return NULL; +} diff --git a/include/crypto/afalg-comm.h b/include/crypto/afalg-comm.h new file mode 100644 index 0000000..b6b9464 --- /dev/null +++ b/include/crypto/afalg-comm.h @@ -0,0 +1,61 @@ +/* + * QEMU Crypto af_alg 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. + */ +#ifndef QCRYPTO_AFALG_H +#define QCRYPTO_AFALG_H + +#include "qapi-types.h" + +#ifndef SOL_ALG +#define SOL_ALG 279 +#endif + +typedef struct QCryptoAfalg QCryptoAfalg; +struct QCryptoAfalg { + int tfmfd; + int opfd; + struct msghdr *msg; + struct cmsghdr *cmsg; +}; + + +/** + * afalg_comm_format_type: + * @afalg: the AfalgSocketAddress object + * @type: the type of crypto alg. + * + * Set the type field of the @afalg according to @type. + */ +void afalg_comm_format_type(AfalgSocketAddress *afalg, + const char *type); + +/** + * afalg_comm_alloc: + * @saddr: the SocketAddress object + * + * Allocate a QCryptoAfalg object and bind itself to + * a AF_ALG socket. + * + * Returns: + * a new QCryptoAfalg object, or NULL in error. + */ +QCryptoAfalg *afalg_comm_alloc(SocketAddress *saddr); + +/** + * afalg_comm_free: + * @afalg: the QCryptoAfalg object + * + * Free the @afalg. + */ +void afalg_comm_free(QCryptoAfalg *afalg); + +#endif