1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
5  * Copyright (c) 1999-2001, Vitaly V Belekhov
80 /* Node private data */
82 	struct ifnet	*ifp;		/* per-interface network data */
85 	int		unit;		/* Interface unit number */
86 	node_p		node;		/* Our netgraph node */  member
91 /* Interface methods */
108 /* Node type descriptor */
127 			INTERFACE STUFF
131  * Process an ioctl for the virtual interface
136 	const priv_p priv = (priv_p)ifp->if_softc;  in ng_eiface_ioctl()
154 		 * If the interface is marked up and stopped, then start it.  in ng_eiface_ioctl()
157 		if (ifp->if_flags & IFF_UP) {  in ng_eiface_ioctl()
158 			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {  in ng_eiface_ioctl()
159 				ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE);  in ng_eiface_ioctl()
160 				ifp->if_drv_flags |= IFF_DRV_RUNNING;  in ng_eiface_ioctl()
163 			if (ifp->if_drv_flags & IFF_DRV_RUNNING)  in ng_eiface_ioctl()
164 				ifp->if_drv_flags &= ~(IFF_DRV_RUNNING |  in ng_eiface_ioctl()
169 	/* Set the interface MTU */  in ng_eiface_ioctl()
171 		if (ifr->ifr_mtu > NG_EIFACE_MTU_MAX ||  in ng_eiface_ioctl()
172 		    ifr->ifr_mtu < NG_EIFACE_MTU_MIN)  in ng_eiface_ioctl()
175 			ifp->if_mtu = ifr->ifr_mtu;  in ng_eiface_ioctl()
181 		error = ifmedia_ioctl(ifp, ifr, &priv->media, command);  in ng_eiface_ioctl()
204 	struct ifnet *ifp = sc->ifp;  in ng_eiface_init()
206 	ifp->if_drv_flags |= IFF_DRV_RUNNING;  in ng_eiface_init()
207 	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;  in ng_eiface_init()
213  * be the only code running in this node at this time.
216 ng_eiface_start2(node_p node, hook_p hook, void *arg1, int arg2)  in ng_eiface_start2()  argument
219 	const priv_p priv = (priv_p)ifp->if_softc;  in ng_eiface_start2()
223 	/* Check interface flags */  in ng_eiface_start2()
225 	if (!((ifp->if_flags & IFF_UP) &&  in ng_eiface_start2()
226 	    (ifp->if_drv_flags & IFF_DRV_RUNNING)))  in ng_eiface_start2()
233 		IF_DEQUEUE(&ifp->if_snd, m);  in ng_eiface_start2()
249 		if (ifp->if_flags & IFF_MONITOR) {  in ng_eiface_start2()
260 		CURVNET_SET_QUIET(priv->node->nd_vnet);  in ng_eiface_start2()
261 		NG_SEND_DATA_ONLY(error, priv->ether, m);  in ng_eiface_start2()
272 	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;  in ng_eiface_start2()
278  * This routine is called to deliver a packet out the interface.
293 	const priv_p priv = (priv_p)ifp->if_softc;  in ng_eiface_start()
296 	if (ifp->if_drv_flags & IFF_DRV_OACTIVE)  in ng_eiface_start()
299 	ifp->if_drv_flags |= IFF_DRV_OACTIVE;  in ng_eiface_start()
301 	if (ng_send_fn(priv->node, NULL, &ng_eiface_start2, ifp, 0) != 0)  in ng_eiface_start()
302 		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;  in ng_eiface_start()
307  * Display an ioctl to the virtual interface
332 	    ifp->if_xname,  in ng_eiface_print_ioctl()
346 	const priv_p priv = (priv_p)ifp->if_softc;  in ng_eiface_mediachange()
347 	struct ifmedia *ifm = &priv->media;  in ng_eiface_mediachange()
349 	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)  in ng_eiface_mediachange()
351 	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO)  in ng_eiface_mediachange()
352 		ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T);  in ng_eiface_mediachange()
354 		ifp->if_baudrate = ifmedia_baudrate(ifm->ifm_media);  in ng_eiface_mediachange()
362 	const priv_p priv = (priv_p)ifp->if_softc;  in ng_eiface_mediastatus()
363 	struct ifmedia *ifm = &priv->media;  in ng_eiface_mediastatus()
365 	if (ifm->ifm_cur->ifm_media == (IFM_ETHER | IFM_AUTO) &&  in ng_eiface_mediastatus()
366 	    (priv->link_status & IFM_ACTIVE))  in ng_eiface_mediastatus()
367 		ifmr->ifm_active = IFM_ETHER | IFM_1000_T | IFM_FDX;  in ng_eiface_mediastatus()
369 		ifmr->ifm_active = ifm->ifm_cur->ifm_media;  in ng_eiface_mediastatus()
370 	ifmr->ifm_status = priv->link_status;  in ng_eiface_mediastatus()
376 			NETGRAPH NODE STUFF
380  * Constructor for a node
383 ng_eiface_constructor(node_p node)  in ng_eiface_constructor()  argument
389 	/* Allocate node and interface private structures */  in ng_eiface_constructor()
391 	ifp = priv->ifp = if_alloc(IFT_ETHER);  in ng_eiface_constructor()
394 	ifp->if_softc = priv;  in ng_eiface_constructor()
396 	/* Get an interface unit number */  in ng_eiface_constructor()
397 	priv->unit = alloc_unr(V_ng_eiface_unit);  in ng_eiface_constructor()
399 	/* Link together node and private info */  in ng_eiface_constructor()
400 	NG_NODE_SET_PRIVATE(node, priv);  in ng_eiface_constructor()
401 	priv->node = node;  in ng_eiface_constructor()
403 	/* Initialize interface structure */  in ng_eiface_constructor()
404 	if_initname(ifp, NG_EIFACE_EIFACE_NAME, priv->unit);  in ng_eiface_constructor()
405 	ifp->if_init = ng_eiface_init;  in ng_eiface_constructor()
406 	ifp->if_output = ether_output;  in ng_eiface_constructor()
407 	ifp->if_start = ng_eiface_start;  in ng_eiface_constructor()
408 	ifp->if_ioctl = ng_eiface_ioctl;  in ng_eiface_constructor()
409 	ifp->if_snd.ifq_maxlen = ifqmaxlen;  in ng_eiface_constructor()
410 	ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST);  in ng_eiface_constructor()
411 	ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU;  in ng_eiface_constructor()
412 	ifp->if_capenable = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU;  in ng_eiface_constructor()
413 	ifmedia_init(&priv->media, 0, ng_eiface_mediachange,  in ng_eiface_constructor()
415 	ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T, 0, NULL);  in ng_eiface_constructor()
416 	ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL);  in ng_eiface_constructor()
417 	ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX, 0, NULL);  in ng_eiface_constructor()
418 	ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL);  in ng_eiface_constructor()
419 	ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T, 0, NULL);  in ng_eiface_constructor()
420 	ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL);  in ng_eiface_constructor()
421 	ifmedia_add(&priv->media, IFM_ETHER | IFM_10G_T | IFM_FDX, 0, NULL);  in ng_eiface_constructor()
422 	ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL);  in ng_eiface_constructor()
423 	ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO);  in ng_eiface_constructor()
424 	priv->link_status = IFM_AVALID;  in ng_eiface_constructor()
426 	/* Give this node the same name as the interface (if possible) */  in ng_eiface_constructor()
427 	if (ng_name_node(node, ifp->if_xname) != 0)  in ng_eiface_constructor()
429 		    ifp->if_xname);  in ng_eiface_constructor()
431 	/* Attach the interface */  in ng_eiface_constructor()
434 	ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T);  in ng_eiface_constructor()
444 ng_eiface_newhook(node_p node, hook_p hook, const char *name)  in ng_eiface_newhook()  argument
446 	priv_p priv = NG_NODE_PRIVATE(node);  in ng_eiface_newhook()
447 	struct ifnet *ifp = priv->ifp;  in ng_eiface_newhook()
451 	if (priv->ether != NULL)  in ng_eiface_newhook()
453 	priv->ether = hook;  in ng_eiface_newhook()
454 	NG_HOOK_SET_PRIVATE(hook, &priv->ether);  in ng_eiface_newhook()
457 	priv->link_status |= IFM_ACTIVE;  in ng_eiface_newhook()
458 	CURVNET_SET_QUIET(ifp->if_vnet);  in ng_eiface_newhook()
469 ng_eiface_rcvmsg(node_p node, item_p item, hook_p lasthook)  in ng_eiface_rcvmsg()  argument
471 	const priv_p priv = NG_NODE_PRIVATE(node);  in ng_eiface_rcvmsg()
472 	struct ifnet *const ifp = priv->ifp;  in ng_eiface_rcvmsg()
478 	switch (msg->header.typecookie) {  in ng_eiface_rcvmsg()
480 		switch (msg->header.cmd) {  in ng_eiface_rcvmsg()
483 			if (msg->header.arglen != ETHER_ADDR_LEN) {  in ng_eiface_rcvmsg()
487 			error = if_setlladdr(priv->ifp,  in ng_eiface_rcvmsg()
488 			    (u_char *)msg->data, ETHER_ADDR_LEN);  in ng_eiface_rcvmsg()
498 			strlcpy(resp->data, ifp->if_xname, IFNAMSIZ);  in ng_eiface_rcvmsg()
511 			CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)  in ng_eiface_rcvmsg()
512 				buflen += SA_SIZE(ifa->ifa_addr);  in ng_eiface_rcvmsg()
521 			ptr = resp->data;  in ng_eiface_rcvmsg()
522 			CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ng_eiface_rcvmsg()
523 				const int len = SA_SIZE(ifa->ifa_addr);  in ng_eiface_rcvmsg()
527 					    ifp->if_xname);  in ng_eiface_rcvmsg()
530 				bcopy(ifa->ifa_addr, ptr, len);  in ng_eiface_rcvmsg()
532 				buflen -= len;  in ng_eiface_rcvmsg()
544 		CURVNET_SET_QUIET(ifp->if_vnet);  in ng_eiface_rcvmsg()
545 		switch (msg->header.cmd) {  in ng_eiface_rcvmsg()
547 			priv->link_status |= IFM_ACTIVE;  in ng_eiface_rcvmsg()
551 			priv->link_status &= ~IFM_ACTIVE;  in ng_eiface_rcvmsg()
563 	NG_RESPOND_MSG(error, node, item, resp);  in ng_eiface_rcvmsg()
575 	struct ifnet *const ifp = priv->ifp;  in ng_eiface_rcvdata()
581 	if (!((ifp->if_flags & IFF_UP) &&  in ng_eiface_rcvdata()
582 	    (ifp->if_drv_flags & IFF_DRV_RUNNING))) {  in ng_eiface_rcvdata()
587 	if (m->m_len < ETHER_HDR_LEN) {  in ng_eiface_rcvdata()
593 	/* Note receiving interface */  in ng_eiface_rcvdata()
594 	m->m_pkthdr.rcvif = ifp;  in ng_eiface_rcvdata()
596 	/* Update interface stats */  in ng_eiface_rcvdata()
599 	(*ifp->if_input)(ifp, m);  in ng_eiface_rcvdata()
609 ng_eiface_rmnode(node_p node)  in ng_eiface_rmnode()  argument
611 	const priv_p priv = NG_NODE_PRIVATE(node);  in ng_eiface_rmnode()
612 	struct ifnet *const ifp = priv->ifp;  in ng_eiface_rmnode()
615 	 * the ifnet may be in a different vnet than the netgraph node,   in ng_eiface_rmnode()
618 	CURVNET_SET_QUIET(ifp->if_vnet);  in ng_eiface_rmnode()
620 	ifmedia_removeall(&priv->media);  in ng_eiface_rmnode()
623 	free_unr(V_ng_eiface_unit, priv->unit);  in ng_eiface_rmnode()
625 	NG_NODE_SET_PRIVATE(node, NULL);  in ng_eiface_rmnode()
626 	NG_NODE_UNREF(node);  in ng_eiface_rmnode()
638 	priv->ether = NULL;  in ng_eiface_disconnect()
639 	priv->link_status &= ~IFM_ACTIVE;  in ng_eiface_disconnect()
640 	CURVNET_SET_QUIET(priv->ifp->if_vnet);  in ng_eiface_disconnect()
641 	if_link_state_change(priv->ifp, LINK_STATE_DOWN);  in ng_eiface_disconnect()
647  * Handle loading and unloading for this node type.