From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75F6533D1 for ; Wed, 2 Mar 2022 13:50:16 +0000 (UTC) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 222D6m3a009982; Wed, 2 Mar 2022 13:50:03 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=dPifZdpI3YuNsXOLXWcvjFZZLnguUhHVXpYbxHrgndw=; b=oxmbKA03ALyF7hZI/qJvEyFZ7MFRxqm2DrxRvkVz/Zq9a0NyVKny05MsyLI/+uLbOkem WAMaA5EJV4oL9jk47GrJUKsZb11eLrJCO2Scl87IIxpiAN5BLC4fg29shpv6LNryqJWz kspsAVR7nCWmgfNLSE1ntp/iCbFA2Xg5Cb9rLa354ENo1hwceYaQn7VUW3yHscl6SyTw hc4vjEAsPqCutOFKgj6Kc/UhHCB1ZSNUbc/Z37a8y2s32ggzWJ7tRy8zclMCvcRafgEG 4mEdZMzzWXy/ldZp/HOX3jED4PCgkfs6AUssSlxFA7j+Uo8XNaFcz4Gza97uq3UdmDgo 2g== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3ej779vt7p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Mar 2022 13:50:03 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 222DSI4a012130; Wed, 2 Mar 2022 13:50:02 GMT Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0a-001b2d01.pphosted.com with ESMTP id 3ej779vt74-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Mar 2022 13:50:02 +0000 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 222DmUWP005334; Wed, 2 Mar 2022 13:50:00 GMT Received: from b01cxnp22035.gho.pok.ibm.com (b01cxnp22035.gho.pok.ibm.com [9.57.198.25]) by ppma01dal.us.ibm.com with ESMTP id 3efbuany3d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Mar 2022 13:50:00 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 222Dnxno49545616 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 2 Mar 2022 13:49:59 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2E4B811206F; Wed, 2 Mar 2022 13:49:59 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 208A5112070; Wed, 2 Mar 2022 13:49:59 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 2 Mar 2022 13:49:59 +0000 (GMT) From: Stefan Berger To: linux-integrity@vger.kernel.org Cc: zohar@linux.ibm.com, serge@hallyn.com, christian.brauner@ubuntu.com, containers@lists.linux.dev, dmitry.kasatkin@gmail.com, ebiederm@xmission.com, krzysztof.struczynski@huawei.com, roberto.sassu@huawei.com, mpeters@redhat.com, lhinds@redhat.com, lsturman@redhat.com, puiterwi@redhat.com, jejb@linux.ibm.com, jamjoom@us.ibm.com, linux-kernel@vger.kernel.org, paul@paul-moore.com, rgb@redhat.com, linux-security-module@vger.kernel.org, jmorris@namei.org, Stefan Berger Subject: [PATCH v11 16/27] ima: Implement ima_free_policy_rules() for freeing of an ima_namespace Date: Wed, 2 Mar 2022 08:46:51 -0500 Message-Id: <20220302134703.1273041-17-stefanb@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220302134703.1273041-1-stefanb@linux.ibm.com> References: <20220302134703.1273041-1-stefanb@linux.ibm.com> Precedence: bulk X-Mailing-List: containers@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: QJNsN2jiz2E9j4S9nrEaxPHYYFIPl-rq X-Proofpoint-GUID: -jnPJj6E-rmidxrPss6wR9F0EsvzyoDh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-02_06,2022-02-26_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 phishscore=0 mlxlogscore=999 lowpriorityscore=0 priorityscore=1501 mlxscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2203020057 Implement ima_free_policy_rules() to free the current custom IMA policy's rules. This function will be called when an ima_namespace is freed. Signed-off-by: Stefan Berger Reviewed-by: Mimi Zohar --- v10: - Not calling ima_delete_rules() anymore - Move access check from ima_delete_rules into very last patch v9: - Only reset temp_ima_appraise when using init_ima_ns. --- security/integrity/ima/ima.h | 1 + security/integrity/ima/ima_policy.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+) diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h index 2775a6d89e6d..054b8f67be04 100644 --- a/security/integrity/ima/ima.h +++ b/security/integrity/ima/ima.h @@ -333,6 +333,7 @@ void ima_update_policy_flags(struct ima_namespace *ns); ssize_t ima_parse_add_rule(struct ima_namespace *ns, char *rule); void ima_delete_rules(struct ima_namespace *ns); int ima_check_policy(struct ima_namespace *ns); +void ima_free_policy_rules(struct ima_namespace *ns); void *ima_policy_start(struct seq_file *m, loff_t *pos); void *ima_policy_next(struct seq_file *m, void *v, loff_t *pos); void ima_policy_stop(struct seq_file *m, void *v); diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index c30e1f4490ae..50c7bdec5109 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -1906,6 +1906,20 @@ void ima_delete_rules(struct ima_namespace *ns) } } +/** + * ima_free_policy_rules - free all policy rules + * @ns: IMA namespace that has the policy + */ +void ima_free_policy_rules(struct ima_namespace *ns) +{ + struct ima_rule_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, &ns->ima_policy_rules, list) { + list_del(&entry->list); + ima_free_rule(entry); + } +} + #define __ima_hook_stringify(func, str) (#func), const char *const func_tokens[] = { -- 2.31.1