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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: 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[] = {