Move variable function in lsm_audit.h into SMACK private space

Moved variable function in include/linux/lsm_audit.h into the
smack_audit_data struct since it is never used outside of it.

Also removed setting of function in the COMMON_AUDIT_DATA_INIT
macro because that variable is now private to SMACK.

Signed-off-by: Thomas Liu <tliu@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
I-dont-see-any-problems-with-it: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>

2 files changed, 5 insertions, 4 deletions

diff --git a/security/smack/smack.h b/security/smack/smack.h
index 243bec175be0..ff180ede3e47 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -275,7 +275,7 @@ static inline void smk_ad_init(struct smk_audit_info *a, const char *func,
 {
         memset(a, 0, sizeof(*a));
         a->a.type = type;
-        a->a.function = func;
+        a->a.lsm_priv.smack_audit_data.function = func;
 }
 
 static inline void smk_ad_setfield_u_tsk(struct smk_audit_info *a,
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 513dc1aa16dd..dd84877dff30 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -241,7 +241,8 @@ static void smack_log_callback(struct audit_buffer *ab, void *a)
 {
         struct common_audit_data *ad = a;
         struct smack_audit_data *sad = &ad->lsm_priv.smack_audit_data;
-        audit_log_format(ab, "lsm=SMACK fn=%s action=%s", ad->function,
+        audit_log_format(ab, "lsm=SMACK fn=%s action=%s",
+                         ad->lsm_priv.smack_audit_data.function,
                          sad->result ? "denied" : "granted");
         audit_log_format(ab, " subject=");
         audit_log_untrustedstring(ab, sad->subject);
@@ -274,8 +275,8 @@ void smack_log(char *subject_label, char *object_label, int request,
         if (result == 0 && (log_policy & SMACK_AUDIT_ACCEPT) == 0)
                 return;
 
-        if (a->function == NULL)
-                a->function = "unknown";
+        if (a->lsm_priv.smack_audit_data.function == NULL)
+                a->lsm_priv.smack_audit_data.function = "unknown";
 
         /* end preparing the audit data */
         sad = &a->lsm_priv.smack_audit_data;