From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by mx.groups.io with SMTP id smtpd.web12.1729.1638387067038695118 for ; Wed, 01 Dec 2021 11:31:07 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@ibm.com header.s=pp1 header.b=lLOkos1z; spf=pass (domain: linux.ibm.com, ip: 148.163.156.1, mailfrom: stefanb@linux.ibm.com) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 1B1IlWLt023872 for ; Wed, 1 Dec 2021 19:31:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=ecUXRDBWSSpenAZ40J1jRzn9ZdpefD5dbSQwy/o/00I=; b=lLOkos1zPNp6dQTIydODoJMOCTaYVqg73NbMPxE5MKdh7FFqdn1dwZ6BwtL5UDsGCEBK 7S7c5I/3qr+NrWlNbtVf9JmVO1HbnSgwrCwY7HX63zxNvuG3BbIWQA3guVd4N+ik44j+ hBNM4fg3HKrEabk4O0yseMrkyasl/BQF5EY6MJ0SV9WDH5vFUd1HuQHnkBzFnZaF/tE4 3LmsexknFUzBAMmBArmW8VNrzq4sXCVOMWW0b10HhzLlMxw84qyW9PkFF+91h+Ksmm44 Eel/gX+FEf54401d+z7QyvF9yeHADsBktLQA/Tdi864UMu0+hD+uS+R6UI65SsUxY/YA og== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3cpen0rtdd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 01 Dec 2021 19:31:06 +0000 Received: from m0098393.ppops.net (m0098393.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 1B1J93BS023423 for ; Wed, 1 Dec 2021 19:31:05 GMT Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 3cpen0rt98-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 01 Dec 2021 19:31:05 +0000 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1B1JD3Fv026132; Wed, 1 Dec 2021 19:30:48 GMT Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by ppma03dal.us.ibm.com with ESMTP id 3ckcackmnb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 01 Dec 2021 19:30:48 +0000 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1B1JUlnt18809222 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 1 Dec 2021 19:30:47 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EE0376E05D; Wed, 1 Dec 2021 19:30:46 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 48F5E6E053; Wed, 1 Dec 2021 19:30:46 +0000 (GMT) Received: from sbct-2.pok.ibm.com (unknown [9.47.158.152]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 1 Dec 2021 19:30:46 +0000 (GMT) From: "Stefan Berger" To: devel@edk2.groups.io, kraxel@redhat.com, marcandre.lureau@redhat.com Cc: Stefan Berger Subject: [PATCH v3 4/8] SecurityPkg: Declare PhysicalPresenceFlags variable and its properties Date: Wed, 1 Dec 2021 14:30:26 -0500 Message-Id: <20211201193030.3932074-5-stefanb@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211201193030.3932074-1-stefanb@linux.ibm.com> References: <20211201193030.3932074-1-stefanb@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: YHIcgl-sOmVxWlsyfJ4w-1qfOWAQxVsI X-Proofpoint-ORIG-GUID: DHFcVbNgvMbWnkPGO2rAiDTlV0XQdgzs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-11-30_10,2021-12-01_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 bulkscore=0 suspectscore=0 phishscore=0 malwarescore=0 mlxscore=0 adultscore=0 mlxlogscore=999 priorityscore=1501 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112010104 Content-Transfer-Encoding: quoted-printable Declare the TPM 1.2 PhysicalPresenceFlags variable and its properties. The effect of its properties is that once PhysicalPresenceFlags is defined it cannot be deleted from Linux: cd /sys/firmware/efi/efivars chattr -i PhysicalPresenceFlags-* rm -f PhysicalPresenceFlags-* It will still be there: ls PhysicalPresenceFlags-* Signed-off-by: Stefan Berger --- .../Library/AuthVariableLib/AuthServiceInternal.h | 1 + SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c | 11 +++++++++++ .../Library/AuthVariableLib/AuthVariableLib.inf | 4 ++++ 3 files changed, 16 insertions(+) diff --git a/SecurityPkg/Library/AuthVariableLib/AuthServiceInternal.h b/Se= curityPkg/Library/AuthVariableLib/AuthServiceInternal.h index 2bec637f75..fc2abdb96c 100644 --- a/SecurityPkg/Library/AuthVariableLib/AuthServiceInternal.h +++ b/SecurityPkg/Library/AuthVariableLib/AuthServiceInternal.h @@ -30,6 +30,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent =0D #include =0D #include =0D +#include =0D =0D #define TWO_BYTE_ENCODE 0x82=0D =0D diff --git a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c b/Securi= tyPkg/Library/AuthVariableLib/AuthVariableLib.c index 122b3b0bf4..ae75f32d40 100644 --- a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c +++ b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c @@ -89,6 +89,17 @@ VARIABLE_ENTRY_PROPERTY mAuthVarEntry[] =3D { MAX_UINTN=0D }=0D },=0D + {=0D + &gEfiPhysicalPresenceGuid,=0D + PHYSICAL_PRESENCE_FLAGS_VARIABLE,=0D + {=0D + VAR_CHECK_VARIABLE_PROPERTY_REVISION,=0D + VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY,=0D + VARIABLE_ATTRIBUTE_NV_BS,=0D + sizeof (EFI_PHYSICAL_PRESENCE_FLAGS),=0D + MAX_UINTN=0D + }=0D + }=0D };=0D =0D VOID **mAuthVarAddressPointer[9];=0D diff --git a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf b/Secu= rityPkg/Library/AuthVariableLib/AuthVariableLib.inf index 8eadeebceb..d0ced0792c 100644 --- a/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf +++ b/SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf @@ -75,6 +75,10 @@ ## PRODUCES ## Variable:L"certdbv"=0D gEfiCertDbGuid=0D =0D + ## CONSUMES ## Variable:L"PhysicalPresenceFlags"=0D + ## PRODUCES ## Variable:L"PhysicalPresenceFlags"=0D + gEfiPhysicalPresenceGuid=0D +=0D ## CONSUMES ## Variable:L"VendorKeysNv"=0D ## PRODUCES ## Variable:L"VendorKeysNv"=0D gEfiVendorKeysNvGuid=0D --=20 2.31.1