From patchwork Wed Sep 8 23:20:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 12482017 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E3FBC433F5 for ; Wed, 8 Sep 2021 23:24:49 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E745C61108 for ; Wed, 8 Sep 2021 23:24:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E745C61108 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:60560 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mO6vv-0006lg-RR for qemu-devel@archiver.kernel.org; Wed, 08 Sep 2021 19:24:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36144) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mO6s2-0006gu-2g for qemu-devel@nongnu.org; Wed, 08 Sep 2021 19:20:46 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:54231) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mO6s0-0002md-Bz for qemu-devel@nongnu.org; Wed, 08 Sep 2021 19:20:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1631143243; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AztXDO9JQH0V78yza1WhT6PPCcwDZClDQJU1AbRxT1E=; b=DzNscKHD3B+rraynLTiG6CcFw3GBOY0qxjYVo/6Orqx2lRKrTmHUdjS8qLxwmpQcj7StRN Mykf0lwDYaebs39zHs5SnQpcb9VgCmEOSsSQ8VtDZoP1M16PR3lxxWqBDQNoTCfYQwlhAW wdLaQ24zI0jb7CYEshHXMM+oVlnWEZo= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-233-mGKaeruPN1SYzwcTs6Yyjw-1; Wed, 08 Sep 2021 19:20:42 -0400 X-MC-Unique: mGKaeruPN1SYzwcTs6Yyjw-1 Received: by mail-wm1-f72.google.com with SMTP id f17-20020a05600c155100b002f05f30ff03so43155wmg.3 for ; Wed, 08 Sep 2021 16:20:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=AztXDO9JQH0V78yza1WhT6PPCcwDZClDQJU1AbRxT1E=; b=MZYzep8O1l98mZ/F6yNVwfIIpnAU5ItQy58TJpEaqLTFZ7ew48j90v6+9UqC9gx6RU jgj4zqQbfCH5N8lrQM5w/knYLnaRAeyg/IP74wFvanUf4XxqlkcIqR7Q6a1A+L0NfuXe BNuz3OggEoj/H3RVV9Idf0e35Bb1gNBysuM11rbj5BSqBLmLLH3KfDU7B0e5nK2qr+gI FiYu142Q3uJq8FJxlW8ttIZogRqsWeJqtmwuvq0fsr3h/1rREOVWxKl1ajDKxu5nsQcM yCL8Bs8EZNS3h3vJ/pHrJVqtOXai+7aK4lYOedFeR3ygDLwSpZaUcr82ennhd5xQYNUO 9FJA== X-Gm-Message-State: AOAM5319uzGC9/Ms4TkJ/Y+ySNxW+j5GxZR5yssaX7zGLpj3NmF/PmoI gUTKYlE2D2ERSdfHfuCPoykOXGlSDpPuycaajksohCAoe7Zr0m1xJUa5Gs3rdIsJVnmOR8obfY4 4A/GlrTcuhWFB51U0+Q5LLdUZgNFILWKumh4ZysYouDaXwOuWMU9l9tAB+WBJR1YP X-Received: by 2002:adf:cd92:: with SMTP id q18mr84511wrj.211.1631143241104; Wed, 08 Sep 2021 16:20:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyXGBcGkm4TBFmSADncXUcjFYrWCY3XIJ3gTrnp0jPkA2D2pCoYXECv5ulk3hjXuxgjKt0f9A== X-Received: by 2002:adf:cd92:: with SMTP id q18mr84482wrj.211.1631143240917; Wed, 08 Sep 2021 16:20:40 -0700 (PDT) Received: from x1w.. (21.red-83-52-55.dynamicip.rima-tde.net. [83.52.55.21]) by smtp.gmail.com with ESMTPSA id u8sm3407763wmq.45.2021.09.08.16.20.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Sep 2021 16:20:40 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 03/10] block: Use qemu_security_policy_taint() API Date: Thu, 9 Sep 2021 01:20:17 +0200 Message-Id: <20210908232024.2399215-4-philmd@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210908232024.2399215-1-philmd@redhat.com> References: <20210908232024.2399215-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.393, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Thomas Huth , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Prasad J Pandit , qemu-block@nongnu.org, "Michael S. Tsirkin" , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Richard Henderson , Markus Armbruster , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , xen-devel@lists.xenproject.org, Paolo Bonzini , Eric Blake , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add the BlockDriver::bdrv_taints_security_policy() handler. Drivers implementing it might taint the global QEMU security policy. Signed-off-by: Philippe Mathieu-Daudé --- include/block/block_int.h | 6 +++++- block.c | 6 ++++++ 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/include/block/block_int.h b/include/block/block_int.h index f1a54db0f8c..0ec0a5c06e9 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -169,7 +169,11 @@ struct BlockDriver { int (*bdrv_file_open)(BlockDriverState *bs, QDict *options, int flags, Error **errp); void (*bdrv_close)(BlockDriverState *bs); - + /* + * Return %true if the driver is withing QEMU security policy boundary, + * %false otherwise. See: https://www.qemu.org/contribute/security-process/ + */ + bool (*bdrv_taints_security_policy)(BlockDriverState *bs); int coroutine_fn (*bdrv_co_create)(BlockdevCreateOptions *opts, Error **errp); diff --git a/block.c b/block.c index b2b66263f9a..696ba486001 100644 --- a/block.c +++ b/block.c @@ -49,6 +49,7 @@ #include "qemu/timer.h" #include "qemu/cutils.h" #include "qemu/id.h" +#include "qemu-common.h" #include "block/coroutines.h" #ifdef CONFIG_BSD @@ -1587,6 +1588,11 @@ static int bdrv_open_driver(BlockDriverState *bs, BlockDriver *drv, } } + if (drv->bdrv_taints_security_policy) { + qemu_security_policy_taint(drv->bdrv_taints_security_policy(bs), + "Block protocol '%s'", drv->format_name); + } + return 0; open_failed: bs->drv = NULL;