From mboxrd@z Thu Jan 1 00:00:00 1970 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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 E3371C3F2CD for ; Wed, 4 Mar 2020 12:38:42 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 63BAC20848 for ; Wed, 4 Mar 2020 12:38:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 63BAC20848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48XYMg2bwBzDqch for ; Wed, 4 Mar 2020 23:38:39 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=zohar@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48XYHt3XK7zDqTK for ; Wed, 4 Mar 2020 23:35:21 +1100 (AEDT) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 024CTB5D139756 for ; Wed, 4 Mar 2020 07:35:19 -0500 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 2yj8hbh64b-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 04 Mar 2020 07:35:19 -0500 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 4 Mar 2020 12:35:13 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 024CZBJP38928546 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 4 Mar 2020 12:35:11 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8565711C052; Wed, 4 Mar 2020 12:35:11 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5C57811C054; Wed, 4 Mar 2020 12:35:10 +0000 (GMT) Received: from localhost.localdomain (unknown [9.80.200.112]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 4 Mar 2020 12:35:10 +0000 (GMT) Subject: Re: [PATCH v2] ima: add a new CONFIG for loading arch-specific policies From: Mimi Zohar To: James Bottomley , Nayna Jain , linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-efi@vger.kernel.org, linux-s390@vger.kernel.org Date: Wed, 04 Mar 2020 07:35:09 -0500 In-Reply-To: <1583307813.3907.4.camel@HansenPartnership.com> References: <1583289211-5420-1-git-send-email-nayna@linux.ibm.com> <1583307813.3907.4.camel@HansenPartnership.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.20.5 (3.20.5-1.fc24) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20030412-0016-0000-0000-000002ED176D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030412-0017-0000-0000-0000335064A5 Message-Id: <1583325309.6264.23.camel@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-04_03:2020-03-04, 2020-03-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 suspectscore=0 adultscore=0 phishscore=0 mlxscore=0 bulkscore=0 malwarescore=0 mlxlogscore=972 spamscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003040096 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Philipp Rudo , Ard Biesheuvel , linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, 2020-03-03 at 23:43 -0800, James Bottomley wrote: > On Tue, 2020-03-03 at 21:33 -0500, Nayna Jain wrote: > > diff --git a/security/integrity/ima/Kconfig > > b/security/integrity/ima/Kconfig > > index 3f3ee4e2eb0d..d17972aa413a 100644 > > --- a/security/integrity/ima/Kconfig > > +++ b/security/integrity/ima/Kconfig > > @@ -327,3 +327,12 @@ config IMA_QUEUE_EARLY_BOOT_KEYS > > depends on IMA_MEASURE_ASYMMETRIC_KEYS > > depends on SYSTEM_TRUSTED_KEYRING > > default y > > + > > +config IMA_SECURE_AND_OR_TRUSTED_BOOT > > + bool > > + depends on IMA > > + depends on IMA_ARCH_POLICY > > + default n > > You can't do this: a symbol designed to be selected can't depend on > other symbols because Kconfig doesn't see the dependencies during > select. We even have a doc for this now: > > Documentation/kbuild/Kconfig.select-break The document is discussing a circular dependency, where C selects B.  IMA_SECURE_AND_OR_TRUSTED_BOOT is not selecting anything, but is being selected.  All of the Kconfig's are now dependent on IMA_ARCH_POLICY being enabled before selecting IMA_SECURE_AND_OR_TRUSTED_BOOT. As Ard pointed out, both IMA and IMA_ARCH_POLICY are not needed, as IMA_ARCH_POLICY is already dependent on IMA. Mimi