From patchwork Tue May 1 13:48:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mimi Zohar X-Patchwork-Id: 10373949 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 0504C60234 for ; Tue, 1 May 2018 13:49:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB5ED28678 for ; Tue, 1 May 2018 13:49:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DFE9428C83; Tue, 1 May 2018 13:49:34 +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 vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8355B28ACE for ; Tue, 1 May 2018 13:49:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755653AbeEANsv (ORCPT ); Tue, 1 May 2018 09:48:51 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:45490 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755131AbeEANsr (ORCPT ); Tue, 1 May 2018 09:48:47 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w41DiUd5081484 for ; Tue, 1 May 2018 09:48:47 -0400 Received: from e06smtp10.uk.ibm.com (e06smtp10.uk.ibm.com [195.75.94.106]) by mx0b-001b2d01.pphosted.com with ESMTP id 2hprw7hd41-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 01 May 2018 09:48:46 -0400 Received: from localhost by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Tue, 1 May 2018 14:48:40 +0100 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w41DmeRd11272514; Tue, 1 May 2018 13:48:40 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 696FD42042; Tue, 1 May 2018 14:39:53 +0100 (BST) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C257142041; Tue, 1 May 2018 14:39:51 +0100 (BST) Received: from localhost.ibm.com (unknown [9.80.105.194]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 1 May 2018 14:39:51 +0100 (BST) From: Mimi Zohar To: linux-integrity@vger.kernel.org Cc: Hans de Goede , Ard Biesheuvel , Peter Jones , Mimi Zohar , linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, David Howells , "Luis R . Rodriguez" , "Luis R . Rodriguez" , Kees Cook , Seth Forshee , Johannes Berg Subject: [PATCH 3/6] firmware: differentiate between signed regulatory.db and other firmware Date: Tue, 1 May 2018 09:48:20 -0400 X-Mailer: git-send-email 2.7.5 In-Reply-To: <1525182503-13849-1-git-send-email-zohar@linux.vnet.ibm.com> References: <1525182503-13849-1-git-send-email-zohar@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18050113-0040-0000-0000-00000434CD9E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18050113-0041-0000-0000-00002638E687 Message-Id: <1525182503-13849-4-git-send-email-zohar@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-05-01_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805010138 Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP Allow LSMs and IMA to differentiate between signed regulatory.db and other firmware. Signed-off-by: Mimi Zohar Cc: Luis R. Rodriguez Cc: David Howells Cc: Kees Cook Cc: Seth Forshee Cc: Johannes Berg --- drivers/base/firmware_loader/main.c | 5 +++++ include/linux/fs.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index eb34089e4299..d7cdf04a8681 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -318,6 +318,11 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv) break; } +#ifdef CONFIG_CFG80211_REQUIRE_SIGNED_REGDB + if ((strcmp(fw_priv->fw_name, "regulatory.db") == 0) || + (strcmp(fw_priv->fw_name, "regulatory.db.p7s") == 0)) + id = READING_FIRMWARE_REGULATORY_DB; +#endif fw_priv->size = 0; rc = kernel_read_file_from_path(path, &fw_priv->data, &size, msize, id); diff --git a/include/linux/fs.h b/include/linux/fs.h index dc16a73c3d38..d1153c2884b9 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2811,6 +2811,7 @@ extern int do_pipe_flags(int *, int); id(FIRMWARE, firmware) \ id(FIRMWARE_PREALLOC_BUFFER, firmware) \ id(FIRMWARE_FALLBACK, firmware) \ + id(FIRMWARE_REGULATORY_DB, firmware) \ id(MODULE, kernel-module) \ id(KEXEC_IMAGE, kexec-image) \ id(KEXEC_INITRAMFS, kexec-initramfs) \