lkml.org 
[lkml]   [2023]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v15 15/26] ima: Implement ima_free_policy_rules() for freeing of an ima_namespace
    Date
    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
    \
     
     \ /
      Last update: 2023-03-27 00:11    [W:5.392 / U:0.032 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site