1161 	const struct mach_msg_filter_callbacks *callbacks)  in mach_msg_filter_register_callback()  argument
1165 	if (callbacks == NULL) {  in mach_msg_filter_register_callback()
1173 	if (callbacks->version >= MACH_MSG_FILTER_CALLBACKS_VERSION_0) {  in mach_msg_filter_register_callback()
1175 		if (callbacks->fetch_filter_policy == NULL) {  in mach_msg_filter_register_callback()
1181 	if (callbacks->version >= MACH_MSG_FILTER_CALLBACKS_VERSION_1) {  in mach_msg_filter_register_callback()
1182 		if (callbacks->alloc_service_port_sblabel == NULL ||  in mach_msg_filter_register_callback()
1183 		    callbacks->dealloc_service_port_sblabel == NULL ||  in mach_msg_filter_register_callback()
1184 		    callbacks->derive_sblabel_from_service_port == NULL ||  in mach_msg_filter_register_callback()
1185 		    callbacks->get_connection_port_filter_policy == NULL ||  in mach_msg_filter_register_callback()
1186 		    callbacks->retain_sblabel == NULL) {  in mach_msg_filter_register_callback()
1192 	if (callbacks->version > MACH_MSG_FILTER_CALLBACKS_VERSION_1) {  in mach_msg_filter_register_callback()
1197 	memcpy(&mach_msg_filter_callbacks, callbacks, size);  in mach_msg_filter_register_callback()