36  * The node has two hooks, upper and lower. Traffic flowing from upper to
37  * lower hook is referenced as downstream, and vice versa. Parameters for
101 	struct hookinfo		lower;  member
278 		bzero(&priv->lower, sizeof(priv->lower));  in ngp_newhook()
279 		priv->lower.hook = hook;  in ngp_newhook()
280 		NG_HOOK_SET_PRIVATE(hook, &priv->lower);  in ngp_newhook()
324 				bcopy(&priv->lower.stats, &stats->upstream,  in ngp_rcvmsg()
330 				bzero(&priv->lower.stats,  in ngp_rcvmsg()
331 				    sizeof(priv->lower.stats));  in ngp_rcvmsg()
343 			bcopy(&priv->lower.run, &run->upstream,  in ngp_rcvmsg()
355 			bcopy(&priv->lower.cfg, &cfg->upstream,  in ngp_rcvmsg()
382 				priv->lower.cfg.bandwidth = 0;  in ngp_rcvmsg()
387 				priv->lower.cfg.bandwidth = cfg->bandwidth;  in ngp_rcvmsg()
407 			    priv->lower.cfg.ber == 1;  in ngp_rcvmsg()
410 			parse_cfg(&priv->lower.cfg, &cfg->upstream,  in ngp_rcvmsg()
411 			    &priv->lower, priv);  in ngp_rcvmsg()
413 			    priv->lower.cfg.ber == 1;  in ngp_rcvmsg()
421 				if (priv->lower.hook != NULL) {  in ngp_rcvmsg()
426 						    flow_msg, priv->lower.hook,  in ngp_rcvmsg()
608 		if (hinfo == &priv->lower)  in ngp_rcvdata()
611 			dest = &priv->lower;  in ngp_rcvdata()
748 	if (hinfo == &priv->lower)  in pipe_dequeue()
751 		dest = &priv->lower;  in pipe_dequeue()
916 	if (priv->lower.hook != NULL)  in ngp_callout()
917 		pipe_dequeue(&priv->lower, &now);  in ngp_callout()
923  * This is tricky. If we have both a lower and upper hook, then we
935 	if (priv->lower.hook && priv->upper.hook)  in ngp_shutdown()
936 		ng_bypass(priv->lower.hook, priv->upper.hook);  in ngp_shutdown()
940 		if (priv->lower.hook != NULL)  in ngp_shutdown()
941 			ng_rmhook_self(priv->lower.hook);  in ngp_shutdown()
987 	if (priv->upper.hook == NULL && priv->lower.hook == NULL)  in ngp_disconnect()