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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 31 May 2018 08:25:08 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w4VEP7ZE17039664 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 31 May 2018 07:25:08 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D302378037; Thu, 31 May 2018 08:25:07 -0600 (MDT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP id 64BD27804D; Thu, 31 May 2018 08:25:07 -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 v2 3/4] ima: Do not audit if CONFIG_INTEGRITY_AUDIT is not set Date: Thu, 31 May 2018 10:24:59 -0400 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180531142500.4193818-1-stefanb@linux.vnet.ibm.com> References: <20180531142500.4193818-1-stefanb@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18053114-0020-0000-0000-00000E0F4EA8 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009102; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000264; SDB=6.01040334; UDB=6.00532532; IPR=6.00819463; MB=3.00021393; MTD=3.00000008; XFM=3.00000015; UTC=2018-05-31 14:25:10 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18053114-0021-0000-0000-000061AE8518 Message-Id: <20180531142500.4193818-4-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-05-31_06:, , 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-1805310163 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