From patchwork Mon Jun 4 20:54:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 10447315 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 87271601A1 for ; Mon, 4 Jun 2018 20:55:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 78CAE29240 for ; Mon, 4 Jun 2018 20:55:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6D7B02924F; Mon, 4 Jun 2018 20:55:13 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, 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 0257829240 for ; Mon, 4 Jun 2018 20:55:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751451AbeFDUzL (ORCPT ); Mon, 4 Jun 2018 16:55:11 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:59142 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751303AbeFDUzJ (ORCPT ); Mon, 4 Jun 2018 16:55:09 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w54KjT2L042971 for ; Mon, 4 Jun 2018 16:55:08 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0b-001b2d01.pphosted.com with ESMTP id 2jd9bngbwq-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 04 Jun 2018 16:55:08 -0400 Received: from localhost by e34.co.us.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) Mon, 4 Jun 2018 14:55:04 -0600 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 w54Kt35Q62455950 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 4 Jun 2018 13:55:03 -0700 Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C58A96E04C; Mon, 4 Jun 2018 14:55:03 -0600 (MDT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1B7776E05E; Mon, 4 Jun 2018 14:55:03 -0600 (MDT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 4 Jun 2018 14:55:02 -0600 (MDT) From: Stefan Berger To: zohar@linux.vnet.ibm.com, paul@paul-moore.com, linux-integrity@vger.kernel.org, linux-audit@redhat.com Cc: sgrubb@redhat.com, linux-kernel@vger.kernel.org, Stefan Berger Subject: [PATCH v3 3/4] ima: Do not audit if CONFIG_INTEGRITY_AUDIT is not set Date: Mon, 4 Jun 2018 16:54:54 -0400 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180604205455.2325754-1-stefanb@linux.vnet.ibm.com> References: <20180604205455.2325754-1-stefanb@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18060420-0016-0000-0000-000008E299D6 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009129; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000265; SDB=6.01042340; UDB=6.00533730; IPR=6.00821470; MB=3.00021461; MTD=3.00000008; XFM=3.00000015; UTC=2018-06-04 20:55:06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18060420-0017-0000-0000-00003F1933FA Message-Id: <20180604205455.2325754-4-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-06-04_14:, , 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=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1805220000 definitions=main-1806040238 Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If Integrity is not auditing, IMA shouldn't audit, either. Signed-off-by: Stefan Berger --- security/integrity/ima/Kconfig | 1 + security/integrity/ima/ima_policy.c | 6 +++++- security/integrity/integrity.h | 15 +++++++++++++++ 3 files changed, 21 insertions(+), 1 deletion(-) diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig index 6a8f67714c83..94c2151331aa 100644 --- a/security/integrity/ima/Kconfig +++ b/security/integrity/ima/Kconfig @@ -12,6 +12,7 @@ config IMA select TCG_TIS if TCG_TPM && X86 select TCG_CRB if TCG_TPM && ACPI select TCG_IBMVTPM if TCG_TPM && PPC_PSERIES + select INTEGRITY_AUDIT if AUDIT help The Trusted Computing Group(TCG) runtime Integrity Measurement Architecture(IMA) maintains a list of hash diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 3fcf0935468c..bc99713dfe57 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -628,6 +628,9 @@ static int ima_lsm_rule_init(struct ima_rule_entry *entry, static void ima_log_string_op(struct audit_buffer *ab, char *key, char *value, bool (*rule_operator)(kuid_t, kuid_t)) { + if (!ab) + return; + if (rule_operator == &uid_gt) audit_log_format(ab, "%s>", key); else if (rule_operator == &uid_lt) @@ -649,7 +652,8 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) bool uid_token; int result = 0; - ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_INTEGRITY_RULE); + ab = integrity_audit_log_start(NULL, GFP_KERNEL, + AUDIT_INTEGRITY_RULE); entry->uid = INVALID_UID; entry->fowner = INVALID_UID; diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index 0bb372eed62a..e60473b13a8d 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h @@ -15,6 +15,7 @@ #include #include #include +#include /* iint action cache flags */ #define IMA_MEASURE 0x00000001 @@ -199,6 +200,13 @@ static inline void evm_load_x509(void) void integrity_audit_msg(int audit_msgno, struct inode *inode, const unsigned char *fname, const char *op, const char *cause, int result, int info); + +static inline struct audit_buffer * +integrity_audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type) +{ + return audit_log_start(ctx, gfp_mask, type); +} + #else static inline void integrity_audit_msg(int audit_msgno, struct inode *inode, const unsigned char *fname, @@ -206,4 +214,11 @@ static inline void integrity_audit_msg(int audit_msgno, struct inode *inode, int result, int info) { } + +static inline struct audit_buffer * +integrity_audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type) +{ + return NULL; +} + #endif