From patchwork Tue Jan 4 17:04:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 12703678 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E696CC4332F for ; Tue, 4 Jan 2022 17:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235659AbiADRFI (ORCPT ); Tue, 4 Jan 2022 12:05:08 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:49402 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S235660AbiADRE6 (ORCPT ); Tue, 4 Jan 2022 12:04:58 -0500 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 204GOFXX004183; Tue, 4 Jan 2022 17:04:33 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=c6DXpXWU3lWMD53AhHbjpgxJb4cP6RgZTTKAbSxYjGo=; b=RiemSsv6lfWiw+uI/Pz3GV5JRU8mWwOWDxkOVmXuPJydlVDEBierob4oX/kwNXD0/x9c nlppnsoOYlUREsz8O1w3yFBmnUU7p/mAClpLA2chQ+gm06WQDpcqoyvrCSbd4PDhomAk eSQOSBglJ8EG9ADsz82mxEAunc9MrQRhT/MHWXQ1zg0WUDJDGQyj8/f35QXxsfghPIjz wNFytFNtDJXEheWK+l1cCgwSKN4+YEUQP1CfmTkFAiGMjjHNYg0D7i/wwtH77X+/zQJE +/Yl4gjdaZcVwpOW07x6VbODaiEeMkbFiH4wyy7I31qeUNFvmjgU847o0GDY5yC0z0tF 3w== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3dcmaw7h0q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 04 Jan 2022 17:04:32 +0000 Received: from m0098413.ppops.net (m0098413.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 204Gr619005471; Tue, 4 Jan 2022 17:04:32 GMT Received: from ppma05wdc.us.ibm.com (1b.90.2fa9.ip4.static.sl-reverse.com [169.47.144.27]) by mx0b-001b2d01.pphosted.com with ESMTP id 3dcmaw7h0a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 04 Jan 2022 17:04:32 +0000 Received: from pps.filterd (ppma05wdc.us.ibm.com [127.0.0.1]) by ppma05wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 204H4AOW012866; Tue, 4 Jan 2022 17:04:31 GMT Received: from b01cxnp23033.gho.pok.ibm.com (b01cxnp23033.gho.pok.ibm.com [9.57.198.28]) by ppma05wdc.us.ibm.com with ESMTP id 3daekaq1p2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 04 Jan 2022 17:04:31 +0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 204H4U1o38404428 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 4 Jan 2022 17:04:30 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 61E6DAC05B; Tue, 4 Jan 2022 17:04:30 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 50FEDAC064; Tue, 4 Jan 2022 17:04:30 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 4 Jan 2022 17:04:30 +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 v8 11/19] ima: Implement ima_free_policy_rules() for freeing of an ima_namespace Date: Tue, 4 Jan 2022 12:04:08 -0500 Message-Id: <20220104170416.1923685-12-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220104170416.1923685-1-stefanb@linux.vnet.ibm.com> References: <20220104170416.1923685-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 4Rtuft7rIwQL4CEKFlAXmdCLFlKwV-7J X-Proofpoint-ORIG-GUID: KB6iTkx33LcjWKQjfU9tv1r2OnpShbMM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-01-04_08,2022-01-04_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 impostorscore=0 priorityscore=1501 mlxscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 mlxlogscore=999 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2201040114 Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org From: Stefan Berger Implement ima_free_policy_rules() that is needed when an ima_namespace is freed. Signed-off-by: Stefan Berger --- security/integrity/ima/ima.h | 1 + security/integrity/ima/ima_policy.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h index 0c86a955cedf..1c1e859721ee 100644 --- a/security/integrity/ima/ima.h +++ b/security/integrity/ima/ima.h @@ -325,6 +325,7 @@ 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 c265c3b5a9f2..15c68dc5da9e 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -1884,6 +1884,22 @@ 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; + + ima_delete_rules(ns); + + 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[] = {