Messages in this thread Patch in this message | | | From | Stefan Berger <> | Subject | [PATCH v15 15/26] ima: Implement ima_free_policy_rules() for freeing of an ima_namespace | Date | Mon, 6 Feb 2023 09:02:42 -0500 |
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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 <stefanb@linux.ibm.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Reviewed-by: Serge Hallyn <serge@hallyn.com>
--- 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 5d647011429b..efe9c82b4396 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 2a2c88f7d135..10b85642188f 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -2014,6 +2014,20 @@ 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[] = { -- 2.37.3
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