Function sepgsql_avc_trusted_proc

contrib/sepgsql/uavc.c:443–468

* sepgsql_avc_trusted_proc * * If the supplied function OID is configured as a trusted procedure, this * function will return a security label to be used during the execution of * that function. Otherwise, it returns NULL. */

 * that function.  Otherwise, it returns NULL.
 */
char *
sepgsql_avc_trusted_proc(Oid functionId)
{
	char	   *scontext = sepgsql_get_client_label();
	char	   *tcontext;
	ObjectAddress tobject;
	avc_cache  *cache;

	tobject.classId = ProcedureRelationId;
	tobject.objectId = functionId;
	tobject.objectSubId = 0;
	tcontext = GetSecurityLabel(&tobject, SEPGSQL_LABEL_TAG);

	sepgsql_avc_check_valid();
	do
	{
		if (tcontext)
			cache = sepgsql_avc_lookup(scontext, tcontext,
									   SEPG_CLASS_DB_PROCEDURE);
		else
			cache = sepgsql_avc_lookup(scontext, sepgsql_avc_unlabeled(),
									   SEPG_CLASS_DB_PROCEDURE);
	} while (!sepgsql_avc_check_valid());

	return cache->ncontext;
}

/*
 * sepgsql_avc_exit