From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751772AbeEBXIn (ORCPT ); Wed, 2 May 2018 19:08:43 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:39874 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751441AbeEBXIk (ORCPT ); Wed, 2 May 2018 19:08:40 -0400 From: Mehmet Kayaalp To: David Howells , David Woodhouse , Keyrings Cc: Linux Integrity , Linux Security , Linux Kernel , Mimi Zohar , Stefan Berger , George Wilson , Mike Rapoport , Mehmet Kayaalp Subject: [PATCH v6 0/4] Certificate insertion support for x86 bzImages Date: Wed, 2 May 2018 19:08:07 -0400 X-Mailer: git-send-email 2.14.3 (Apple Git-98) X-TM-AS-GCONF: 00 x-cbid: 18050223-0020-0000-0000-00000DDA063B X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008959; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000258; SDB=6.01026618; UDB=6.00524344; IPR=6.00805804; MB=3.00020894; MTD=3.00000008; XFM=3.00000015; UTC=2018-05-02 23:08:37 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18050223-0021-0000-0000-0000612E6574 Message-Id: <20180502230811.2751-1-mkayaalp@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-05-02_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805020192 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These patches add support for modifying the reserved space for extra certificates in a compressed bzImage in x86. This allows separating the system keyring certificate from the kernel build process. After the kernel image is distributed, the insert-sys-cert script can be used to insert the certificate for x86. Changes: v6: * Removed libelf dependency (2/4) v5: * Added CRC fixing (3/4) v4: * Applied checkpatch.pl suggestions (2/4, 3/4) * Cleaned up the commit messages (1/4, 2/4) * Added the build file to .gitignore (1/4) v3: * Rewrote 1/4 to insert incompressible bytes are at build time. Previous solution required changes to /boot/Makefile's for modifying the vmlinux file after linking, and did not work well with cross compilation. * Added 2/4 for ELF class-independent processing of vmlinux file, in case the script was compiled for 64-bit and the kernel was compiled for 32-bit. * Reordered 3/4, added x86 bzImage boot version (>=2.08) verification. v2: * Rebased arch/boot/x86/Makefile patch (removed in v3) Mehmet Kayaalp (4): KEYS: Insert incompressible bytes to reserve space in bzImage KEYS: Add ELF class-independent certificate insertion support KEYS: Support for inserting a certificate into x86 bzImage KEYS: Print insert-sys-cert information to stdout instead of stderr certs/.gitignore | 1 + certs/Makefile | 21 +- certs/system_certificates.S | 2 +- scripts/insert-sys-cert.c | 584 +++++++++++++++++++++++++++++------- 4 files changed, 488 insertions(+), 120 deletions(-) -- 2.17.0