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Subject[PATCH RFC 36/48] Audit: Log watch related audit message to proper user namespace
Date
Now, we can log watch related audit message to the user namespace
which the task belongs to.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
---
kernel/audit_watch.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index 6be4cbe..1bac505 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -235,22 +235,26 @@ out:
return new;
}

-static void audit_watch_log_rule_change(struct audit_krule *r, struct audit_watch *w, char *op)
+static void audit_watch_log_rule_change(struct audit_krule *r,
+ struct audit_watch *w, char *op)
{
- if (audit_enabled) {
+ struct user_namespace *ns = current_user_ns();
+
+ if (audit_enabled_ns(ns)) {
struct audit_buffer *ab;
- ab = audit_log_start(NULL, GFP_NOFS, AUDIT_CONFIG_CHANGE);
+ ab = audit_log_start_ns(ns, NULL, GFP_NOFS,
+ AUDIT_CONFIG_CHANGE);
if (unlikely(!ab))
return;
audit_log_format(ab, "auid=%u ses=%u op=",
- from_kuid(&init_user_ns, audit_get_loginuid(current)),
+ from_kuid(ns, audit_get_loginuid(current)),
audit_get_sessionid(current));
audit_log_string(ab, op);
audit_log_format(ab, " path=");
audit_log_untrustedstring(ab, w->path);
audit_log_key(ab, r->filterkey);
audit_log_format(ab, " list=%d res=1", r->listnr);
- audit_log_end(ab);
+ audit_log_end_ns(ns, ab);
}
}

@@ -262,6 +266,7 @@ static void audit_update_watch(struct audit_parent *parent,
struct audit_watch *owatch, *nwatch, *nextw;
struct audit_krule *r, *nextr;
struct audit_entry *oentry, *nentry;
+ struct user_namespace *ns = current_user_ns();

mutex_lock(&audit_filter_mutex);
/* Run all of the watches on this parent looking for the one that
@@ -274,7 +279,7 @@ static void audit_update_watch(struct audit_parent *parent,
/* If the update involves invalidating rules, do the inode-based
* filtering now, so we don't omit records. */
if (invalidating && !audit_dummy_context())
- audit_filter_inodes(current_user_ns(), current,
+ audit_filter_inodes(ns, current,
current->audit_context);

/* updating ino will likely change which audit_hash_list we
@@ -311,7 +316,7 @@ static void audit_update_watch(struct audit_parent *parent,
nentry->rule.watch = nwatch;
list_add(&nentry->rule.rlist, &nwatch->rules);
list_add_rcu(&nentry->list,
- &init_user_ns.audit.inode_hash[h]);
+ &ns->audit.inode_hash[h]);
list_replace(&oentry->rule.list,
&nentry->rule.list);
}
--
1.8.1.4


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