1 /*-
4  * Copyright 2017 Dell EMC Isilon
36  * if_vlan.c - pseudo-device driver for IEEE 802.1Q virtual LANs.
95     ((ifp)->if_flags & IFF_UP && (ifp)->if_drv_flags & IFF_DRV_RUNNING)
106 	struct	ifvlanhead *hash;	/* dynamic hash-list table */
135 		if (((_ifv) = (_trunk)->vlans[_i]) != NULL)
140 	for (_i = 0; _i < (1 << (_trunk)->hwidth); _i++) \
141 		CK_SLIST_FOREACH_SAFE((_ifv), &(_trunk)->hash[_i], ifv_list, _next)
150 /* The VLAN_ARRAY case is simple -- just a for loop using the condition. */
154 		if (((_ifv) = (_trunk)->vlans[_i]))
168 	    !(_cond) && _i < (1 << (_trunk)->hwidth); \
170 		if (((_ifv) = CK_SLIST_FIRST(&(_trunk)->hash[_i])) != NULL && \
183 #define	TRUNK(ifv)	((ifv)->ifv_trunk)
184 #define	PARENT(ifv)	(TRUNK(ifv)->parent)
224  * if_vlan uses two module-level synchronizations primitives to allow concurrent
228  * there is a non-sleepable epoch(9) and an sx(9).
230  * The performance-sensitive paths that warrant using the epoch(9) are
260  * We also have a per-trunk mutex that should be acquired when changing
263 #define	TRUNK_LOCK_INIT(trunk)		mtx_init(&(trunk)->lock, vlanname, NULL, MTX_DEF)
264 #define	TRUNK_LOCK_DESTROY(trunk)	mtx_destroy(&(trunk)->lock)
265 #define	TRUNK_WLOCK(trunk)		mtx_lock(&(trunk)->lock)
266 #define	TRUNK_WUNLOCK(trunk)		mtx_unlock(&(trunk)->lock)
267 #define	TRUNK_WLOCK_ASSERT(trunk)	mtx_assert(&(trunk)->lock, MA_OWNED);
404 	KASSERT(trunk->hwidth == 0 && trunk->hash == NULL,  in vlan_inithash()
407 	trunk->hwidth = VLAN_DEF_HWIDTH;  in vlan_inithash()
408 	n = 1 << trunk->hwidth;  in vlan_inithash()
409 	trunk->hmask = n - 1;  in vlan_inithash()
410 	trunk->hash = malloc(sizeof(struct ifvlanhead) * n, M_VLAN, M_WAITOK);  in vlan_inithash()
412 		CK_SLIST_INIT(&trunk->hash[i]);  in vlan_inithash()
421 	KASSERT(trunk->hwidth > 0, ("%s: hwidth not positive", __func__));  in vlan_freehash()
422 	for (i = 0; i < (1 << trunk->hwidth); i++)  in vlan_freehash()
423 		KASSERT(CK_SLIST_EMPTY(&trunk->hash[i]),  in vlan_freehash()
426 	free(trunk->hash, M_VLAN);  in vlan_freehash()
427 	trunk->hash = NULL;  in vlan_freehash()
428 	trunk->hwidth = trunk->hmask = 0;  in vlan_freehash()
438 	KASSERT(trunk->hwidth > 0, ("%s: hwidth not positive", __func__));  in vlan_inshash()
440 	b = 1 << trunk->hwidth;  in vlan_inshash()
441 	i = HASH(ifv->ifv_vid, trunk->hmask);  in vlan_inshash()
442 	CK_SLIST_FOREACH(ifv2, &trunk->hash[i], ifv_list)  in vlan_inshash()
443 		if (ifv->ifv_vid == ifv2->ifv_vid)  in vlan_inshash()
448 	 * hash buckets squared. This will make the average linked-list length  in vlan_inshash()
451 	if (trunk->refcnt > (b * b) / 2) {  in vlan_inshash()
453 		i = HASH(ifv->ifv_vid, trunk->hmask);  in vlan_inshash()
455 	CK_SLIST_INSERT_HEAD(&trunk->hash[i], ifv, ifv_list);  in vlan_inshash()
456 	trunk->refcnt++;  in vlan_inshash()
468 	KASSERT(trunk->hwidth > 0, ("%s: hwidth not positive", __func__));  in vlan_remhash()
470 	b = 1 << (trunk->hwidth - 1);  in vlan_remhash()
471 	i = HASH(ifv->ifv_vid, trunk->hmask);  in vlan_remhash()
472 	CK_SLIST_FOREACH(ifv2, &trunk->hash[i], ifv_list)  in vlan_remhash()
474 			trunk->refcnt--;  in vlan_remhash()
475 			CK_SLIST_REMOVE(&trunk->hash[i], ifv2, ifvlan, ifv_list);  in vlan_remhash()
476 			if (trunk->refcnt < (b * b) / 2)  in vlan_remhash()
477 				vlan_growhash(trunk, -1);  in vlan_remhash()
496 	KASSERT(trunk->hwidth > 0, ("%s: hwidth not positive", __func__));  in vlan_growhash()
504 	hwidth2 = trunk->hwidth + howmuch;  in vlan_growhash()
505 	n = 1 << trunk->hwidth;  in vlan_growhash()
515 		while ((ifv = CK_SLIST_FIRST(&trunk->hash[i])) != NULL) {  in vlan_growhash()
516 			CK_SLIST_REMOVE(&trunk->hash[i], ifv, ifvlan, ifv_list);  in vlan_growhash()
517 			j = HASH(ifv->ifv_vid, n2 - 1);  in vlan_growhash()
521 	free(trunk->hash, M_VLAN);  in vlan_growhash()
522 	trunk->hash = hash2;  in vlan_growhash()
523 	trunk->hwidth = hwidth2;  in vlan_growhash()
524 	trunk->hmask = n2 - 1;  in vlan_growhash()
527 		if_printf(trunk->parent,  in vlan_growhash()
538 	CK_SLIST_FOREACH(ifv, &trunk->hash[HASH(vid, trunk->hmask)], ifv_list)  in vlan_gethash()
539 		if (ifv->ifv_vid == vid)  in vlan_gethash()
552 	for (i = 0; i < (1 << trunk->hwidth); i++) {
554 		CK_SLIST_FOREACH(ifv, &trunk->hash[i], ifv_list)
555 			printf("%s ", ifv->ifv_ifp->if_xname);
566 	return trunk->vlans[vid];  in vlan_gethash()
573 	if (trunk->vlans[ifv->ifv_vid] != NULL)  in vlan_inshash()
575 	trunk->vlans[ifv->ifv_vid] = ifv;  in vlan_inshash()
576 	trunk->refcnt++;  in vlan_inshash()
585 	trunk->vlans[ifv->ifv_vid] = NULL;  in vlan_remhash()
586 	trunk->refcnt--;  in vlan_remhash()
609 	trunk->parent->if_vlantrunk = NULL;  in trunk_destroy()
611 	if_rele(trunk->parent);  in trunk_destroy()
635 	sc = ifp->if_softc;  in vlan_setmulti()
638 	CURVNET_SET_QUIET(ifp_p->if_vnet);  in vlan_setmulti()
641 	while ((mc = CK_SLIST_FIRST(&sc->vlan_mc_listhead)) != NULL) {  in vlan_setmulti()
642 		CK_SLIST_REMOVE_HEAD(&sc->vlan_mc_listhead, mc_entries);  in vlan_setmulti()
643 		(void)if_delmulti(ifp_p, (struct sockaddr *)&mc->mc_addr);  in vlan_setmulti()
644 		NET_EPOCH_CALL(vlan_mc_free, &mc->mc_epoch_ctx);  in vlan_setmulti()
649 	CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {  in vlan_setmulti()
650 		if (ifma->ifma_addr->sa_family != AF_LINK)  in vlan_setmulti()
658 		bcopy(ifma->ifma_addr, &mc->mc_addr, ifma->ifma_addr->sa_len);  in vlan_setmulti()
659 		mc->mc_addr.sdl_index = ifp_p->if_index;  in vlan_setmulti()
660 		CK_SLIST_INSERT_HEAD(&sc->vlan_mc_listhead, mc, mc_entries);  in vlan_setmulti()
663 	CK_SLIST_FOREACH (mc, &sc->vlan_mc_listhead, mc_entries) {  in vlan_setmulti()
664 		error = if_addmulti(ifp_p, (struct sockaddr *)&mc->mc_addr,  in vlan_setmulti()
690 	trunk = ifp->if_vlantrunk;  in vlan_ifevent()
698 		ifv->ifv_ifp->if_baudrate = ifp->if_baudrate;  in vlan_ifevent()
720 	trunk = ifp->if_vlantrunk;  in vlan_iflladdr()
740 		ifv_ifp = ifv->ifv_ifp;  in vlan_iflladdr()
742 		    ifp->if_addrlen);  in vlan_iflladdr()
743 		sdl = (struct sockaddr_dl *)ifv_ifp->if_addr->ifa_addr;  in vlan_iflladdr()
744 		sdl->sdl_alen = ifp->if_addrlen;  in vlan_iflladdr()
745 		taskqueue_enqueue(taskqueue_thread, &ifv->lladdr_task);  in vlan_iflladdr()
755  * by ejecting its hot-plug card.  However, if an ifnet is simply
765 	if (ifp->if_flags & IFF_RENAMING)  in vlan_ifdetach()
768 	trunk = ifp->if_vlantrunk;  in vlan_ifdetach()
779 	VLAN_FOREACH_UNTIL_SAFE(ifv, ifp->if_vlantrunk,  in vlan_ifdetach()
780 	    ifp->if_vlantrunk == NULL)  in vlan_ifdetach()
781 		vlan_unconfig_locked(ifv->ifv_ifp, 1);  in vlan_ifdetach()
784 	KASSERT(ifp->if_vlantrunk == NULL, ("%s: purge failed", __func__));  in vlan_ifdetach()
798 	if (ifp->if_type != IFT_L2VLAN)  in vlan_trunkdev()
801 	ifv = ifp->if_softc;  in vlan_trunkdev()
803 	if (ifv->ifv_trunk)  in vlan_trunkdev()
809  * Return the 12-bit VLAN VID for this interface, for use by external
820 	if (ifp->if_type != IFT_L2VLAN)  in vlan_tag()
822 	ifv = ifp->if_softc;  in vlan_tag()
823 	*vidp = ifv->ifv_vid;  in vlan_tag()
832 	if (ifp->if_type != IFT_L2VLAN)  in vlan_pcp()
834 	ifv = ifp->if_softc;  in vlan_pcp()
835 	*pcpp = ifv->ifv_pcp;  in vlan_pcp()
848 	if (ifp->if_type != IFT_L2VLAN)  in vlan_cookie()
850 	ifv = ifp->if_softc;  in vlan_cookie()
851 	return (ifv->ifv_cookie);  in vlan_cookie()
856  * private per-instance data in.
863 	if (ifp->if_type != IFT_L2VLAN)  in vlan_setcookie()
865 	ifv = ifp->if_softc;  in vlan_setcookie()
866 	ifv->ifv_cookie = cookie;  in vlan_setcookie()
881 	trunk = ifp->if_vlantrunk;  in vlan_devat()
887 		ifp = ifv->ifv_ifp;  in vlan_devat()
938 			       "full-size arrays"  in vlan_modevent()
940 			       "hash tables with chaining"  in vlan_modevent()
1023 		vid = (vid * 10) + (*cp - '0');  in vlan_clone_match_ethervid()
1089 	if (ifd->params != NULL) {  in vlan_clone_create()
1106 		 * is not fixed (-1)  in vlan_clone_create()
1145 		if (snprintf(dp, len - (dp-name), "%d", unit) >  in vlan_clone_create()
1146 		    len - (dp-name) - 1) {  in vlan_clone_create()
1152 	ifp = ifv->ifv_ifp = if_alloc(IFT_ETHER);  in vlan_clone_create()
1153 	CK_SLIST_INIT(&ifv->vlan_mc_listhead);  in vlan_clone_create()
1154 	ifp->if_softc = ifv;  in vlan_clone_create()
1159 	strlcpy(ifp->if_xname, name, IFNAMSIZ);  in vlan_clone_create()
1160 	ifp->if_dname = vlanname;  in vlan_clone_create()
1161 	ifp->if_dunit = unit;  in vlan_clone_create()
1163 	ifp->if_init = vlan_init;  in vlan_clone_create()
1165 	ifp->if_start = vlan_altq_start;  in vlan_clone_create()
1166 	ifp->if_transmit = vlan_altq_transmit;  in vlan_clone_create()
1167 	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);  in vlan_clone_create()
1168 	ifp->if_snd.ifq_drv_maxlen = 0;  in vlan_clone_create()
1169 	IFQ_SET_READY(&ifp->if_snd);  in vlan_clone_create()
1171 	ifp->if_transmit = vlan_transmit;  in vlan_clone_create()
1173 	ifp->if_qflush = vlan_qflush;  in vlan_clone_create()
1174 	ifp->if_ioctl = vlan_ioctl;  in vlan_clone_create()
1176 	ifp->if_snd_tag_alloc = vlan_snd_tag_alloc;  in vlan_clone_create()
1177 	ifp->if_ratelimit_query = vlan_ratelimit_query;  in vlan_clone_create()
1179 	ifp->if_flags = VLAN_IFFLAGS;  in vlan_clone_create()
1180 	ifp->if_type = IFT_L2VLAN;  in vlan_clone_create()
1183 	ifp->if_baudrate = 0;  in vlan_clone_create()
1184 	ifp->if_hdrlen = ETHER_VLAN_ENCAP_LEN;  in vlan_clone_create()
1185 	ifa = ifp->if_addr;  in vlan_clone_create()
1186 	sdl = (struct sockaddr_dl *)ifa->ifa_addr;  in vlan_clone_create()
1187 	sdl->sdl_type = IFT_L2VLAN;  in vlan_clone_create()
1245 	struct nl_pstate *npt = ifd->npt;  in vlan_clone_create_nl()
1246 	struct nl_parsed_link *lattrs = ifd->lattrs;  in vlan_clone_create_nl()
1252 	 * lattrs.ifla_idata contains un-parsed vlan data  in vlan_clone_create_nl()
1259 	if (lattrs->ifla_idata == NULL) {  in vlan_clone_create_nl()
1264 	error = nl_parse_nested(lattrs->ifla_idata, &vlan_parser, npt, &attrs);  in vlan_clone_create_nl()
1280 	struct ifc_data ifd_new = { .flags = IFC_F_SYSSPACE, .unit = ifd->unit, .params = &params };  in vlan_clone_create_nl()
1283 	ifp_parent = ifnet_byindex(lattrs->ifi_index);  in vlan_clone_create_nl()
1289 		nlmsg_report_err_msg(npt, "unable to find parent interface %u", lattrs->ifi_index);  in vlan_clone_create_nl()
1293 	error = vlan_clone_create(ifc, name, len, &ifd_new, &ifd->ifp);  in vlan_clone_create_nl()
1301 	struct nl_parsed_link *lattrs = ifd->lattrs;  in vlan_clone_modify_nl()
1303 	if ((lattrs->ifla_idata != NULL) && ((ifd->flags & IFC_F_CREATE) == 0)) {  in vlan_clone_modify_nl()
1310 		error = nl_parse_nested(lattrs->ifla_idata, &vlan_parser, ifd->npt, &attrs);  in vlan_clone_modify_nl()
1315 		struct ifnet *ifp_parent = ifnet_byindex_ref(lattrs->ifla_link);  in vlan_clone_modify_nl()
1319 			nlmsg_report_err_msg(ifd->npt, "unable to find parent interface %u",  in vlan_clone_modify_nl()
1320 			    lattrs->ifla_link);  in vlan_clone_modify_nl()
1324 		struct ifvlan *ifv = ifp->if_softc;  in vlan_clone_modify_nl()
1332 	return (nl_modify_ifp_generic(ifp, ifd->lattrs, ifd->bm, ifd->npt));  in vlan_clone_modify_nl()
1349 	struct ifvlan *ifv = ifp->if_softc;  in vlan_clone_dump_nl()
1351 		parent_index = PARENT(ifv)->if_index;  in vlan_clone_dump_nl()
1352 	vlan_id = ifv->ifv_vid;  in vlan_clone_dump_nl()
1353 	vlan_proto = ifv->ifv_proto;  in vlan_clone_dump_nl()
1375 	struct ifvlan *ifv = ifp->if_softc;  in vlan_clone_destroy()
1376 	int unit = ifp->if_dunit;  in vlan_clone_destroy()
1378 	if (ifp->if_vlantrunk)  in vlan_clone_destroy()
1382 	IFQ_PURGE(&ifp->if_snd);  in vlan_clone_destroy()
1384 	ether_ifdetach(ifp);	/* first, remove it from system-wide lists */  in vlan_clone_destroy()
1391 	taskqueue_drain(taskqueue_thread, &ifv->lladdr_task);  in vlan_clone_destroy()
1402  * The ifp->if_init entry point for vlan(4) is a no-op.
1421 	ifv = ifp->if_softc;  in vlan_transmit()
1428 	len = m->m_pkthdr.len;  in vlan_transmit()
1429 	mcast = (m->m_flags & (M_MCAST | M_BCAST)) ? 1 : 0;  in vlan_transmit()
1434 	if (m->m_pkthdr.csum_flags & CSUM_SND_TAG) {  in vlan_transmit()
1438 		MPASS(m->m_pkthdr.snd_tag->ifp == ifp);  in vlan_transmit()
1439 		mst = m->m_pkthdr.snd_tag;  in vlan_transmit()
1441 		if (vst->tag->ifp != p) {  in vlan_transmit()
1447 		m->m_pkthdr.snd_tag = m_snd_tag_ref(vst->tag);  in vlan_transmit()
1462 	if (!ether_8021q_frame(&m, ifp, p, &ifv->ifv_qtag)) {  in vlan_transmit()
1470 	error = (p->if_transmit)(p, m);  in vlan_transmit()
1490 	 * Find the first non-VLAN parent interface.  in vlan_output()
1492 	ifv = ifp->if_softc;  in vlan_output()
1499 		ifv = p->if_softc;  in vlan_output()
1500 	} while (p->if_type == IFT_L2VLAN);  in vlan_output()
1502 	return p->if_output(ifp, m, dst, ro);  in vlan_output()
1509 	struct ifaltq *ifq = &ifp->if_snd;  in vlan_altq_start()
1526 	if (ALTQ_IS_ENABLED(&ifp->if_snd)) {  in vlan_altq_transmit()
1527 		IFQ_ENQUEUE(&ifp->if_snd, m, err);  in vlan_altq_transmit()
1538  * The ifp->if_qflush entry point for vlan(4) is a no-op.
1555 	trunk = ifp->if_vlantrunk;  in vlan_input()
1561 	if (m->m_flags & M_VLANTAG) {  in vlan_input()
1564 		 * Ethernet frame; the tag is stored out-of-band.  in vlan_input()
1566 		tag = m->m_pkthdr.ether_vtag;  in vlan_input()
1567 		m->m_flags &= ~M_VLANTAG;  in vlan_input()
1572 		 * Packet is tagged in-band as specified by 802.1q.  in vlan_input()
1574 		switch (ifp->if_type) {  in vlan_input()
1576 			if (m->m_len < sizeof(*evl) &&  in vlan_input()
1582 			tag = ntohs(evl->evl_tag);  in vlan_input()
1591 			      ETHER_HDR_LEN - ETHER_TYPE_LEN);  in vlan_input()
1598 			      __func__, ifp->if_xname, ifp->if_type);  in vlan_input()
1609 	if (ifv == NULL || !UP_AND_RUNNING(ifv->ifv_ifp)) {  in vlan_input()
1637 	m->m_pkthdr.rcvif = ifv->ifv_ifp;  in vlan_input()
1638 	if_inc_counter(ifv->ifv_ifp, IFCOUNTER_IPACKETS, 1);  in vlan_input()
1641 	(*ifv->ifv_ifp->if_input)(ifv->ifv_ifp, m);  in vlan_input()
1651 	ifp = ifv->ifv_ifp;  in vlan_lladdr_fn()
1653 	CURVNET_SET(ifp->if_vnet);  in vlan_lladdr_fn()
1656 	if_setlladdr(ifp, IF_LLADDR(ifp), ifp->if_addrlen);  in vlan_lladdr_fn()
1671 	 * We can handle non-ethernet hardware types as long as  in vlan_config()
1674 	if (p->if_type != IFT_ETHER &&  in vlan_config()
1675 	    p->if_type != IFT_L2VLAN &&  in vlan_config()
1676 	    p->if_type != IFT_BRIDGE &&  in vlan_config()
1677 	    (p->if_capenable & IFCAP_VLAN_HWTAGGING) == 0)  in vlan_config()
1679 	if ((p->if_flags & VLAN_IFFLAGS) != VLAN_IFFLAGS)  in vlan_config()
1688 	if (ifv->ifv_trunk) {  in vlan_config()
1689 		trunk = ifv->ifv_trunk;  in vlan_config()
1690 		if (trunk->parent != p)  in vlan_config()
1695 		ifv->ifv_proto = proto;  in vlan_config()
1697 		if (ifv->ifv_vid != vid) {  in vlan_config()
1698 			int oldvid = ifv->ifv_vid;  in vlan_config()
1700 			/* Re-hash */  in vlan_config()
1702 			ifv->ifv_vid = vid;  in vlan_config()
1707 				ifv->ifv_vid = oldvid;  in vlan_config()
1708 				/* Re-insert back where we found it. */  in vlan_config()
1718 	if (p->if_vlantrunk == NULL) {  in vlan_config()
1724 		p->if_vlantrunk = trunk;  in vlan_config()
1725 		trunk->parent = p;  in vlan_config()
1726 		if_ref(trunk->parent);  in vlan_config()
1729 		trunk = p->if_vlantrunk;  in vlan_config()
1732 	ifv->ifv_vid = vid;	/* must set this before vlan_inshash() */  in vlan_config()
1733 	ifv->ifv_pcp = 0;       /* Default: best effort delivery. */  in vlan_config()
1737 	ifv->ifv_proto = proto;  in vlan_config()
1738 	ifv->ifv_encaplen = ETHER_VLAN_ENCAP_LEN;  in vlan_config()
1739 	ifv->ifv_mintu = ETHERMIN;  in vlan_config()
1740 	ifv->ifv_pflags = 0;  in vlan_config()
1741 	ifv->ifv_capenable = -1;  in vlan_config()
1742 	ifv->ifv_capenable2 = -1;  in vlan_config()
1749 	if (p->if_capenable & IFCAP_VLAN_MTU) {  in vlan_config()
1754 		ifv->ifv_mtufudge = 0;  in vlan_config()
1763 		ifv->ifv_mtufudge = ifv->ifv_encaplen;  in vlan_config()
1766 	ifv->ifv_trunk = trunk;  in vlan_config()
1767 	ifp = ifv->ifv_ifp;  in vlan_config()
1770 	 * work with ether_ifattach() but allows for non-ethernet  in vlan_config()
1773 	ifp->if_mtu = p->if_mtu - ifv->ifv_mtufudge;  in vlan_config()
1774 	ifp->if_baudrate = p->if_baudrate;  in vlan_config()
1775 	ifp->if_input = p->if_input;  in vlan_config()
1776 	ifp->if_resolvemulti = p->if_resolvemulti;  in vlan_config()
1777 	ifp->if_addrlen = p->if_addrlen;  in vlan_config()
1778 	ifp->if_broadcastaddr = p->if_broadcastaddr;  in vlan_config()
1779 	ifp->if_pcp = ifv->ifv_pcp;  in vlan_config()
1785 	ifp->if_output = vlan_output;  in vlan_config()
1792 	ifp->if_flags &= ~VLAN_COPY_FLAGS;  in vlan_config()
1793 	ifp->if_flags |= p->if_flags & VLAN_COPY_FLAGS;  in vlan_config()
1796 	ifp->if_link_state = p->if_link_state;  in vlan_config()
1806 	TASK_INIT(&ifv->lladdr_task, 0, vlan_lladdr_fn, ifv);  in vlan_config()
1807 	((struct sockaddr_dl *)ifp->if_addr->ifa_addr)->sdl_alen =  in vlan_config()
1808 	    p->if_addrlen;  in vlan_config()
1815 	if (memcmp(IF_LLADDR(p), IF_LLADDR(ifp), p->if_addrlen) != 0) {  in vlan_config()
1816 		bcopy(IF_LLADDR(p), IF_LLADDR(ifp), p->if_addrlen);  in vlan_config()
1817 		taskqueue_enqueue(taskqueue_thread, &ifv->lladdr_task);  in vlan_config()
1821 	ifp->if_drv_flags |= IFF_DRV_RUNNING;  in vlan_config()
1834 		EVENTHANDLER_INVOKE(vlan_config, p, ifv->ifv_vid);  in vlan_config()
1860 	ifv = ifp->if_softc;  in vlan_unconfig_locked()
1861 	trunk = ifv->ifv_trunk;  in vlan_unconfig_locked()
1865 		parent = trunk->parent;  in vlan_unconfig_locked()
1872 		while ((mc = CK_SLIST_FIRST(&ifv->vlan_mc_listhead)) != NULL) {  in vlan_unconfig_locked()
1883 				    (struct sockaddr *)&mc->mc_addr);  in vlan_unconfig_locked()
1889 			CK_SLIST_REMOVE_HEAD(&ifv->vlan_mc_listhead, mc_entries);  in vlan_unconfig_locked()
1890 			NET_EPOCH_CALL(vlan_mc_free, &mc->mc_epoch_ctx);  in vlan_unconfig_locked()
1896 		ifv->ifv_trunk = NULL;  in vlan_unconfig_locked()
1901 		if (trunk->refcnt == 0) {  in vlan_unconfig_locked()
1902 			parent->if_vlantrunk = NULL;  in vlan_unconfig_locked()
1909 	if (ifv->ifv_pflags)  in vlan_unconfig_locked()
1911 	ifp->if_mtu = ETHERMTU;  in vlan_unconfig_locked()
1912 	ifp->if_link_state = LINK_STATE_UNKNOWN;  in vlan_unconfig_locked()
1913 	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;  in vlan_unconfig_locked()
1921 		EVENTHANDLER_INVOKE(vlan_unconfig, parent, ifv->ifv_vid);  in vlan_unconfig_locked()
1934 	ifv = ifp->if_softc;  in vlan_setflag()
1935 	status = status ? (ifp->if_flags & flag) : 0;  in vlan_setflag()
1947 	if (status != (ifv->ifv_pflags & flag)) {  in vlan_setflag()
1951 		ifv->ifv_pflags &= ~flag;  in vlan_setflag()
1952 		ifv->ifv_pflags |= status;  in vlan_setflag()
1985 	trunk = ifp->if_vlantrunk;  in vlan_link_state()
1993 		ifv->ifv_ifp->if_baudrate = trunk->parent->if_baudrate;  in vlan_link_state()
1994 		if_link_state_change(ifv->ifv_ifp,  in vlan_link_state()
1995 		    trunk->parent->if_link_state);  in vlan_link_state()
2007 	ifv = ifp->if_softc;				\
2012 		error = p->if_ipsec_accel_m->exp;	\
2061 	return (trunk->if_ipsec_accel_m->if_hwassist(trunk, sav,  in vlan_if_ipsec_hwassist()
2091 	ifp = ifv->ifv_ifp;  in vlan_capabilities()
2094 	mena = p->if_capenable & ifv->ifv_capenable;  in vlan_capabilities()
2095 	mena2 = p->if_capenable2 & ifv->ifv_capenable2;  in vlan_capabilities()
2099 	 * on VLANs, then propagate its hardware-assisted  in vlan_capabilities()
2103 	if (p->if_capabilities & IFCAP_VLAN_HWCSUM)  in vlan_capabilities()
2104 		cap |= p->if_capabilities & (IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6);  in vlan_capabilities()
2105 	if (p->if_capenable & IFCAP_VLAN_HWCSUM &&  in vlan_capabilities()
2106 	    p->if_capenable & IFCAP_VLAN_HWTAGGING) {  in vlan_capabilities()
2109 			hwa |= p->if_hwassist & (CSUM_IP | CSUM_TCP |  in vlan_capabilities()
2112 			hwa |= p->if_hwassist & (CSUM_TCP_IPV6 |  in vlan_capabilities()
2118 	 * propagate the hardware-assisted flag. TSO on VLANs  in vlan_capabilities()
2124 	if (p->if_capabilities & IFCAP_VLAN_HWTSO)  in vlan_capabilities()
2125 		cap |= p->if_capabilities & IFCAP_TSO;  in vlan_capabilities()
2126 	if (p->if_capenable & IFCAP_VLAN_HWTSO) {  in vlan_capabilities()
2129 			hwa |= p->if_hwassist & CSUM_TSO;  in vlan_capabilities()
2137 	if (p->if_capabilities & IFCAP_VLAN_HWCSUM)  in vlan_capabilities()
2138 		cap |= p->if_capabilities & IFCAP_LRO;  in vlan_capabilities()
2139 	if (p->if_capenable & IFCAP_VLAN_HWCSUM)  in vlan_capabilities()
2151 	if (p->if_capabilities & IFCAP_VLAN_TOE)  in vlan_capabilities()
2152 		cap |= p->if_capabilities & IFCAP_TOE;  in vlan_capabilities()
2153 	if (p->if_capenable & IFCAP_VLAN_TOE) {  in vlan_capabilities()
2162 	cap |= (p->if_capabilities & IFCAP_LINKSTATE);  in vlan_capabilities()
2170 	cap |= (p->if_capabilities & IFCAP_TXRTLMT);  in vlan_capabilities()
2181 	cap |= (p->if_capabilities & IFCAP_MEXTPG);  in vlan_capabilities()
2193 	if (p->if_capabilities & (IFCAP_TXTLS | IFCAP_TXTLS_RTLMT))  in vlan_capabilities()
2194 		cap |= p->if_capabilities & (IFCAP_TXTLS | IFCAP_TXTLS_RTLMT);  in vlan_capabilities()
2195 	if (p->if_capenable & (IFCAP_TXTLS | IFCAP_TXTLS_RTLMT))  in vlan_capabilities()
2198 	ifp->if_capabilities = cap;  in vlan_capabilities()
2199 	ifp->if_capenable = ena;  in vlan_capabilities()
2200 	ifp->if_hwassist = hwa;  in vlan_capabilities()
2203 	cap2 |= p->if_capabilities2 & IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD);  in vlan_capabilities()
2205 	ifp->if_ipsec_accel_m = &vlan_if_ipsec_accel_methods;  in vlan_capabilities()
2208 	ifp->if_capabilities2 = cap2;  in vlan_capabilities()
2209 	ifp->if_capenable2 = ena2;  in vlan_capabilities()
2220 	trunk = ifp->if_vlantrunk;  in vlan_trunk_capabilities()
2249 	ifv = ifp->if_softc;  in vlan_ioctl()
2253 		ifp->if_flags |= IFF_UP;  in vlan_ioctl()
2255 		if (ifa->ifa_addr->sa_family == AF_INET)  in vlan_ioctl()
2260 		bcopy(IF_LLADDR(ifp), &ifr->ifr_addr.sa_data[0],  in vlan_ioctl()
2261 		    ifp->if_addrlen);  in vlan_ioctl()
2268 			error = (*p->if_ioctl)(p, SIOCGIFMEDIA, data);  in vlan_ioctl()
2275 				if (ifmr->ifm_count >= 1 && ifmr->ifm_ulist) {  in vlan_ioctl()
2276 					ifmr->ifm_count = 1;  in vlan_ioctl()
2277 					error = copyout(&ifmr->ifm_current,  in vlan_ioctl()
2278 						ifmr->ifm_ulist,  in vlan_ioctl()
2300 			if (ifr->ifr_mtu >  in vlan_ioctl()
2301 			     (PARENT(ifv)->if_mtu - ifv->ifv_mtufudge) ||  in vlan_ioctl()
2302 			    ifr->ifr_mtu <  in vlan_ioctl()
2303 			     (ifv->ifv_mintu - ifv->ifv_mtufudge))  in vlan_ioctl()
2306 				ifp->if_mtu = ifr->ifr_mtu;  in vlan_ioctl()
2322 		if (ifp->if_vnet != ifp->if_home_vnet) {  in vlan_ioctl()
2341 		oldmtu = ifp->if_mtu;  in vlan_ioctl()
2349 		if (ifp->if_mtu != oldmtu)  in vlan_ioctl()
2355 		if (ifp->if_vnet != ifp->if_home_vnet) {  in vlan_ioctl()
2363 			strlcpy(vlr.vlr_parent, PARENT(ifv)->if_xname,  in vlan_ioctl()
2365 			vlr.vlr_tag = ifv->ifv_vid;  in vlan_ioctl()
2366 			vlr.vlr_proto = ifv->ifv_proto;  in vlan_ioctl()
2401 		if (ifp->if_vnet != ifp->if_home_vnet) {  in vlan_ioctl()
2406 		ifr->ifr_vlan_pcp = ifv->ifv_pcp;  in vlan_ioctl()
2411 		if (ifp->if_vnet != ifp->if_home_vnet) {  in vlan_ioctl()
2419 		if (ifr->ifr_vlan_pcp > VLAN_PCP_MAX) {  in vlan_ioctl()
2423 		ifv->ifv_pcp = ifr->ifr_vlan_pcp;  in vlan_ioctl()
2424 		ifp->if_pcp = ifv->ifv_pcp;  in vlan_ioctl()
2431 		ifv->ifv_capenable = ifr->ifr_reqcap;  in vlan_ioctl()
2466 	ifv = ifp->if_softc;  in vlan_snd_tag_alloc()
2468 	switch (params->hdr.type) {  in vlan_snd_tag_alloc()
2483 		if (params->tls_rx.vlan_id != 0)  in vlan_snd_tag_alloc()
2485 		params->tls_rx.vlan_id = ifv->ifv_vid;  in vlan_snd_tag_alloc()
2497 	if (ifv->ifv_trunk != NULL)  in vlan_snd_tag_alloc()
2523 		m_snd_tag_init(&vst->com, ifp, sw);  in vlan_snd_tag_alloc()
2524 		vst->tag = mst;  in vlan_snd_tag_alloc()
2526 		*ppmt = &vst->com;  in vlan_snd_tag_alloc()
2542 	return (vst->tag);  in vlan_next_snd_tag()
2552 	return (vst->tag->sw->snd_tag_modify(vst->tag, params));  in vlan_snd_tag_modify()
2562 	return (vst->tag->sw->snd_tag_query(vst->tag, params));  in vlan_snd_tag_query()
2571 	m_snd_tag_rele(vst->tag);  in vlan_snd_tag_free()
2584 	q->rate_table = NULL;  in vlan_ratelimit_query()
2585 	q->flags = RT_IS_INDIRECT;  in vlan_ratelimit_query()
2586 	q->max_flows = 0;  in vlan_ratelimit_query()
2587 	q->number_of_rates = 0;  in vlan_ratelimit_query()