sys/net/if_vlan.c

106 #define	TRUNK(ifv)	((ifv)->ifv_trunk)
107 #define	PARENT(ifv)	((ifv)->ifv_trunk->parent)
183 static	int vlan_inshash(struct ifvlantrunk *trunk, struct ifvlan *ifv);
184 static	int vlan_remhash(struct ifvlantrunk *trunk, struct ifvlan *ifv);
202 static	int vlan_config(struct ifvlan *ifv, struct ifnet *p, uint16_t tag);
204 static	void vlan_capabilities(struct ifvlan *ifv);
265 vlan_inshash(struct ifvlantrunk *trunk, struct ifvlan *ifv)
274 	i = HASH(ifv->ifv_vid, trunk->hmask);
276 		if (ifv->ifv_vid == ifv2->ifv_vid)
286 		i = HASH(ifv->ifv_vid, trunk->hmask);
288 	LIST_INSERT_HEAD(&trunk->hash[i], ifv, ifv_list);
295 vlan_remhash(struct ifvlantrunk *trunk, struct ifvlan *ifv)
304 	i = HASH(ifv->ifv_vid, trunk->hmask);
306 		if (ifv2 == ifv) {
324 	struct ifvlan *ifv;
354 		while ((ifv = LIST_FIRST(&trunk->hash[i])) != NULL) {
355 			LIST_REMOVE(ifv, ifv_list);
356 			j = HASH(ifv->ifv_vid, n2 - 1);
357 			LIST_INSERT_HEAD(&hash2[j], ifv, ifv_list);
372 	struct ifvlan *ifv;
376 	LIST_FOREACH(ifv, &trunk->hash[HASH(vid, trunk->hmask)], ifv_list)
377 		if (ifv->ifv_vid == vid)
378 			return (ifv);
388 	struct ifvlan *ifv;
392 		LIST_FOREACH(ifv, &trunk->hash[i], ifv_list)
393 			printf("%s ", ifv->ifv_ifp->if_xname);
408 vlan_inshash(struct ifvlantrunk *trunk, struct ifvlan *ifv)
411 	if (trunk->vlans[ifv->ifv_vid] != NULL)
413 	trunk->vlans[ifv->ifv_vid] = ifv;
420 vlan_remhash(struct ifvlantrunk *trunk, struct ifvlan *ifv)
423 	trunk->vlans[ifv->ifv_vid] = NULL;
519 	struct ifvlan *ifv;
538 		if ((ifv = ifp->if_vlantrunk->vlans[i])) {
541 		LIST_FOREACH_SAFE(ifv, &ifp->if_vlantrunk->hash[i], ifv_list, next) {
544 			if_setlladdr(ifv->ifv_ifp, IF_LLADDR(ifp),
562 	struct ifvlan *ifv;
584 		if ((ifv = ifp->if_vlantrunk->vlans[i])) {
585 			vlan_unconfig_locked(ifv->ifv_ifp, 1);
592 		if ((ifv = LIST_FIRST(&ifp->if_vlantrunk->hash[i]))) {
593 			vlan_unconfig_locked(ifv->ifv_ifp, 1);
611 	struct ifvlan *ifv;
615 	ifv = ifp->if_softc;
618 	if (ifv->ifv_trunk)
619 		ifp = PARENT(ifv);
634 	struct ifvlan *ifv;
638 	ifv = ifp->if_softc;
639 	*vidp = ifv->ifv_vid;
650 	struct ifvlan *ifv;
654 	ifv = ifp->if_softc;
655 	return (ifv->ifv_cookie);
665 	struct ifvlan *ifv;
669 	ifv = ifp->if_softc;
670 	ifv->ifv_cookie = cookie;
681 	struct ifvlan *ifv;
688 	ifv = vlan_gethash(trunk, vid);
689 	if (ifv)
690 		ifp = ifv->ifv_ifp;
864 	struct ifvlan *ifv;
938 	ifv = malloc(sizeof(struct ifvlan), M_VLAN, M_WAITOK | M_ZERO);
939 	ifp = ifv->ifv_ifp = if_alloc(IFT_ETHER);
942 		free(ifv, M_VLAN);
945 	SLIST_INIT(&ifv->vlan_mc_listhead);
947 	ifp->if_softc = ifv;
956 	ifp->if_linkmib = &ifv->ifv_mib;
957 	ifp->if_linkmiblen = sizeof(ifv->ifv_mib);
975 		error = vlan_config(ifv, p, vid);
986 			free(ifv, M_VLAN);
1001 	struct ifvlan *ifv = ifp->if_softc;
1007 	free(ifv, M_VLAN);
1027 	struct ifvlan *ifv;
1031 	ifv = ifp->if_softc;
1032 	p = PARENT(ifv);
1085 		m->m_pkthdr.ether_vtag = ifv->ifv_vid;
1088 		m = ether_vlanencap(m, ifv->ifv_vid);
1121 	struct ifvlan *ifv;
1172 	ifv = vlan_gethash(trunk, vid);
1173 	if (ifv == NULL || !UP_AND_RUNNING(ifv->ifv_ifp)) {
1181 	m->m_pkthdr.rcvif = ifv->ifv_ifp;
1182 	ifv->ifv_ifp->if_ipackets++;
1185 	(*ifp->if_input)(ifv->ifv_ifp, m);
1189 vlan_config(struct ifvlan *ifv, struct ifnet *p, uint16_t vid)
1203 	if (ifv->ifv_trunk)
1228 	ifv->ifv_vid = vid;	/* must set this before vlan_inshash() */
1229 	error = vlan_inshash(trunk, ifv);
1232 	ifv->ifv_proto = ETHERTYPE_VLAN;
1233 	ifv->ifv_encaplen = ETHER_VLAN_ENCAP_LEN;
1234 	ifv->ifv_mintu = ETHERMIN;
1235 	ifv->ifv_pflags = 0;
1247 		ifv->ifv_mtufudge = 0;
1256 		ifv->ifv_mtufudge = ifv->ifv_encaplen;
1259 	ifv->ifv_trunk = trunk;
1260 	ifp = ifv->ifv_ifp;
1266 	ifp->if_mtu = p->if_mtu - ifv->ifv_mtufudge;
1285 	vlan_capabilities(ifv);
1306 		EVENTHANDLER_INVOKE(vlan_config, p, ifv->ifv_vid);
1326 	struct ifvlan *ifv;
1332 	ifv = ifp->if_softc;
1333 	trunk = ifv->ifv_trunk;
1346 		while ((mc = SLIST_FIRST(&ifv->vlan_mc_listhead)) != NULL) {
1363 			SLIST_REMOVE_HEAD(&ifv->vlan_mc_listhead, mc_entries);
1368 		vlan_remhash(trunk, ifv);
1369 		ifv->ifv_trunk = NULL;
1390 	if (ifv->ifv_pflags)
1402 		EVENTHANDLER_INVOKE(vlan_unconfig, parent, ifv->ifv_vid);
1410 	struct ifvlan *ifv;
1415 	ifv = ifp->if_softc;
1428 	if (status != (ifv->ifv_pflags & flag)) {
1429 		error = (*func)(PARENT(ifv), status);
1432 		ifv->ifv_pflags &= ~flag;
1433 		ifv->ifv_pflags |= status;
1462 	struct ifvlan *ifv;
1469 			ifv = trunk->vlans[i];
1472 		LIST_FOREACH(ifv, &trunk->hash[i], ifv_list) {
1474 			ifv->ifv_ifp->if_baudrate = trunk->parent->if_baudrate;
1475 			if_link_state_change(ifv->ifv_ifp,
1482 vlan_capabilities(struct ifvlan *ifv)
1484 	struct ifnet *p = PARENT(ifv);
1485 	struct ifnet *ifp = ifv->ifv_ifp;
1488 	TRUNK_LOCK_ASSERT(TRUNK(ifv));
1547 	struct ifvlan *ifv;
1554 			ifv = trunk->vlans[i];
1557 		LIST_FOREACH(ifv, &trunk->hash[i], ifv_list)
1559 			vlan_capabilities(ifv);
1570 	struct ifvlan *ifv;
1577 	ifv = ifp->if_softc;
1597 		if (TRUNK(ifv) != NULL) {
1598 			p = PARENT(ifv);
1628 		if (TRUNK(ifv) != NULL) {
1630 			     (PARENT(ifv)->if_mtu - ifv->ifv_mtufudge) ||
1632 			     (ifv->ifv_mintu - ifv->ifv_mtufudge))
1675 		error = vlan_config(ifv, p, vlr.vlr_tag);
1692 		if (TRUNK(ifv) != NULL) {
1693 			strlcpy(vlr.vlr_parent, PARENT(ifv)->if_xname,
1695 			vlr.vlr_tag = ifv->ifv_vid;
1706 		if (TRUNK(ifv) != NULL)
1716 		trunk = TRUNK(ifv);