3  * INET		802.1Q VLAN
8  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
14  *		Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
36 #include "vlan.h"
41 /* Global VLAN variables */
45 const char vlan_fullname[] = "802.1Q VLAN Support";
83 					    struct vlan_dev_priv *vlan)  in vlan_stacked_transfer_operstate()  argument
85 	if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_stacked_transfer_operstate()
91 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in unregister_vlan_dev()  local
92 	struct net_device *real_dev = vlan->real_dev;  in unregister_vlan_dev()
95 	u16 vlan_id = vlan->vlan_id;  in unregister_vlan_dev()
106 	if (vlan->flags & VLAN_FLAG_MVRP)  in unregister_vlan_dev()
108 	if (vlan->flags & VLAN_FLAG_GVRP)  in unregister_vlan_dev()
111 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, NULL);  in unregister_vlan_dev()
125 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in unregister_vlan_dev()
142 		NL_SET_ERR_MSG_MOD(extack, "VLAN device already exists");  in vlan_check_real_dev()
151 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in register_vlan_dev()  local
152 	struct net_device *real_dev = vlan->real_dev;  in register_vlan_dev()
153 	u16 vlan_id = vlan->vlan_id;  in register_vlan_dev()
158 	err = vlan_vid_add(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
176 	err = vlan_group_prealloc_vid(grp, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
188 	vlan_stacked_transfer_operstate(real_dev, dev, vlan);  in register_vlan_dev()
194 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, dev);  in register_vlan_dev()
208 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
212 /*  Attach a VLAN device to a mac address (ie Ethernet Card).
218 	struct vlan_dev_priv *vlan;  in register_vlan_device()  local
239 		/* Put our vlan.VID in the name.  in register_vlan_device()
242 		snprintf(name, IFNAMSIZ, "vlan%i", vlan_id);  in register_vlan_device()
245 		/* Put our vlan.VID in the name.  in register_vlan_device()
251 		/* Put our vlan.VID in the name.  in register_vlan_device()
255 		snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);  in register_vlan_device()
265 	/* need 4 bytes for extra VLAN header info,  in register_vlan_device()
270 	vlan = vlan_dev_priv(new_dev);  in register_vlan_device()
271 	vlan->vlan_proto = htons(ETH_P_8021Q);  in register_vlan_device()
272 	vlan->vlan_id = vlan_id;  in register_vlan_device()
273 	vlan->real_dev = real_dev;  in register_vlan_device()
274 	vlan->dent = NULL;  in register_vlan_device()
275 	vlan->flags = VLAN_FLAG_REORDER_HDR;  in register_vlan_device()
292 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_sync_address()  local
295 	if (ether_addr_equal(vlan->real_dev_addr, dev->dev_addr))  in vlan_sync_address()
298 	/* vlan continues to inherit address of lower device */  in vlan_sync_address()
302 	/* vlan address was different from the old address and is equal to  in vlan_sync_address()
304 	if (!ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
308 	/* vlan address was equal to the old address and is different from  in vlan_sync_address()
310 	if (ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
315 	ether_addr_copy(vlan->real_dev_addr, dev->dev_addr);  in vlan_sync_address()
321 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_transfer_features()  local
325 	if (vlan_hw_offload_capable(dev->features, vlan->vlan_proto))  in vlan_transfer_features()
335 	vlandev->priv_flags |= (vlan->real_dev->priv_flags & IFF_XMIT_DST_RELEASE);  in vlan_transfer_features()
336 	vlandev->hw_enc_features = vlan_tnl_features(vlan->real_dev);  in vlan_transfer_features()
370 	struct vlan_dev_priv *vlan;  in vlan_device_event()  local
384 		pr_info("adding VLAN 0 to HW filter on device %s\n",  in vlan_device_event()
403 		/* Propagate real device state to vlan devices */  in vlan_device_event()
445 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
446 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
467 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
468 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
471 			vlan_stacked_transfer_operstate(dev, vlandev, vlan);  in vlan_device_event()
502 		/* Propagate to vlan devices */  in vlan_device_event()
537  *	VLAN IOCTL handler.
742 MODULE_DESCRIPTION("802.1Q/802.1ad VLAN Protocol");