45  * It has 4 hooks: left, right, left2right, and right2left. Data
46  * entering from the right is passed to the left and duplicated on
47  * right2left, and data entering from the left is passed to the right
49  * sent to left, and data from right2left to right.
80 	struct hookinfo		right;  member
177 		hinfo = &privdata->right;  in ng_tee_newhook()
184 		if (privdata->right.dest)  in ng_tee_newhook()
185 			privdata->right.dup = privdata->right.dest;  in ng_tee_newhook()
186 		privdata->right.dest = hinfo;  in ng_tee_newhook()
190 		if (privdata->right.dest)  in ng_tee_newhook()
191 			privdata->right.dup = hinfo;  in ng_tee_newhook()
193 			privdata->right.dest = hinfo;  in ng_tee_newhook()
237 				bcopy(&sc->right.stats, &stats->right,  in ng_tee_rcvmsg()
238 				    sizeof(stats->right));  in ng_tee_rcvmsg()
247 				bzero(&sc->right.stats,  in ng_tee_rcvmsg()
248 				    sizeof(sc->right.stats));  in ng_tee_rcvmsg()
264 		if (lasthook == sc->left.hook || lasthook == sc->right.hook)  {  in ng_tee_rcvmsg()
286  * If data comes in the right link send a copy out right2left, and then
337  * If we have both a left and right hook, then we probably want to extricate
346 	if (privdata->left.hook && privdata->right.hook)  in ng_tee_close()
347 		ng_bypass(privdata->left.hook, privdata->right.hook);  in ng_tee_close()
384 	if (sc->right.dest == hinfo) {  in ng_tee_disconnect()
385 		sc->right.dest = sc->right.dup;  in ng_tee_disconnect()
386 		sc->right.dup = NULL;  in ng_tee_disconnect()
387 	} else if (sc->right.dup == hinfo)  in ng_tee_disconnect()
388 		sc->right.dup = NULL;  in ng_tee_disconnect()