#include <net/arp.h>
#include <linux/rtnetlink.h>
#include <linux/notifier.h>
+#include <net/net_namespace.h>
#include <linux/if_vlan.h>
#include "vlan.h"
static char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
static int vlan_device_event(struct notifier_block *, unsigned long, void *);
-static int vlan_ioctl_handler(void __user *);
+static int vlan_ioctl_handler(struct net *net, void __user *);
static int unregister_vlan_dev(struct net_device *, unsigned short );
static struct notifier_block vlan_notifier_block = {
/* Register us to receive netdevice events */
err = register_netdevice_notifier(&vlan_notifier_block);
- if (err < 0) {
- dev_remove_pack(&vlan_packet_type);
- vlan_proc_cleanup();
- return err;
- }
+ if (err < 0)
+ goto err1;
- vlan_ioctl_set(vlan_ioctl_handler);
+ err = vlan_netlink_init();
+ if (err < 0)
+ goto err2;
+ vlan_ioctl_set(vlan_ioctl_handler);
return 0;
-}
-
-/* Cleanup all vlan devices
- * Note: devices that have been registered that but not
- * brought up will exist but have no module ref count.
- */
-static void __exit vlan_cleanup_devices(void)
-{
- struct net_device *dev, *nxt;
- rtnl_lock();
- for_each_netdev_safe(dev, nxt) {
- if (dev->priv_flags & IFF_802_1Q_VLAN) {
- unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev,
- VLAN_DEV_INFO(dev)->vlan_id);
-
- unregister_netdevice(dev);
- }
- }
- rtnl_unlock();
+err2:
+ unregister_netdevice_notifier(&vlan_notifier_block);
+err1:
+ vlan_proc_cleanup();
+ dev_remove_pack(&vlan_packet_type);
+ return err;
}
/*
{
int i;
+ vlan_netlink_fini();
vlan_ioctl_set(NULL);
/* Un-register us from receiving netdevice events */
unregister_netdevice_notifier(&vlan_notifier_block);
dev_remove_pack(&vlan_packet_type);
- vlan_cleanup_devices();
/* This table must be empty if there are no module
* references left.
return ret;
}
-static int unregister_vlan_device(struct net_device *dev)
+int unregister_vlan_device(struct net_device *dev)
{
int ret;
(1<<__LINK_STATE_DORMANT))) |
(1<<__LINK_STATE_PRESENT);
- /* TODO: maybe just assign it to be ETHERNET? */
- dev->type = real_dev->type;
-
- memcpy(dev->broadcast, real_dev->broadcast, real_dev->addr_len);
- memcpy(dev->dev_addr, real_dev->dev_addr, real_dev->addr_len);
- dev->addr_len = real_dev->addr_len;
+ if (is_zero_ether_addr(dev->dev_addr))
+ memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
+ if (is_zero_ether_addr(dev->broadcast))
+ memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
dev->hard_header = real_dev->hard_header;
dev->rebuild_header = vlan_dev_rebuild_header;
}
dev->hard_header_parse = real_dev->hard_header_parse;
+ dev->hard_header_cache = NULL;
lockdep_set_class(&dev->_xmit_lock, &vlan_netdev_xmit_lock_key);
return 0;
}
-static void vlan_setup(struct net_device *new_dev)
+void vlan_setup(struct net_device *new_dev)
{
SET_MODULE_OWNER(new_dev);
+ ether_setup(new_dev);
+
/* new_dev->ifindex = 0; it will be set when added to
* the global list.
* iflink is set as well.
new_dev->init = vlan_dev_init;
new_dev->open = vlan_dev_open;
new_dev->stop = vlan_dev_stop;
- new_dev->set_mac_address = vlan_dev_set_mac_address;
new_dev->set_multicast_list = vlan_dev_set_multicast_list;
+ new_dev->change_rx_flags = vlan_change_rx_flags;
new_dev->destructor = free_netdev;
new_dev->do_ioctl = vlan_dev_ioctl;
+
+ memset(new_dev->broadcast, 0, ETH_ALEN);
}
static void vlan_transfer_operstate(const struct net_device *dev, struct net_device *vlandev)
}
}
-static int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id)
+int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id)
{
if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
printk(VLAN_DBG "%s: VLANs not supported on %s.\n",
return 0;
}
-static int register_vlan_dev(struct net_device *dev)
+int register_vlan_dev(struct net_device *dev)
{
struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
struct net_device *real_dev = vlan->real_dev;
VLAN_DEV_INFO(new_dev)->vlan_id = VLAN_ID; /* 1 through VLAN_VID_MASK */
VLAN_DEV_INFO(new_dev)->real_dev = real_dev;
VLAN_DEV_INFO(new_dev)->dent = NULL;
- VLAN_DEV_INFO(new_dev)->flags = 1;
+ VLAN_DEV_INFO(new_dev)->flags = VLAN_FLAG_REORDER_HDR;
+ new_dev->rtnl_link_ops = &vlan_link_ops;
err = register_vlan_dev(new_dev);
if (err < 0)
goto out_free_newdev;
- /* Account for reference in struct vlan_dev_info */
- dev_hold(real_dev);
#ifdef VLAN_DEBUG
printk(VLAN_DBG "Allocated new device successfully, returning.\n");
#endif
return err;
}
+static void vlan_sync_address(struct net_device *dev,
+ struct net_device *vlandev)
+{
+ struct vlan_dev_info *vlan = VLAN_DEV_INFO(vlandev);
+
+ /* May be called without an actual change */
+ if (!compare_ether_addr(vlan->real_dev_addr, dev->dev_addr))
+ return;
+
+ /* vlan address was different from the old address and is equal to
+ * the new address */
+ if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+ !compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+ dev_unicast_delete(dev, vlandev->dev_addr, ETH_ALEN);
+
+ /* vlan address was equal to the old address and is different from
+ * the new address */
+ if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+ compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+ dev_unicast_add(dev, vlandev->dev_addr, ETH_ALEN);
+
+ memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
+}
+
static int vlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
{
struct net_device *dev = ptr;
int i, flgs;
struct net_device *vlandev;
+ if (dev->nd_net != &init_net)
+ return NOTIFY_DONE;
+
if (!grp)
goto out;
}
break;
+ case NETDEV_CHANGEADDR:
+ /* Adjust unicast filters on underlying device */
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ vlandev = vlan_group_get_device(grp, i);
+ if (!vlandev)
+ continue;
+
+ vlan_sync_address(dev, vlandev);
+ }
+ break;
+
case NETDEV_DOWN:
/* Put all VLANs for this dev in the down state too. */
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
* o execute requested action or pass command to the device driver
* arg is really a struct vlan_ioctl_args __user *.
*/
-static int vlan_ioctl_handler(void __user *arg)
+static int vlan_ioctl_handler(struct net *net, void __user *arg)
{
int err;
unsigned short vid = 0;
case GET_VLAN_REALDEV_NAME_CMD:
case GET_VLAN_VID_CMD:
err = -ENODEV;
- dev = __dev_get_by_name(args.device1);
+ dev = __dev_get_by_name(&init_net, args.device1);
if (!dev)
goto out;
err = -EINVAL;
break;
case GET_VLAN_REALDEV_NAME_CMD:
+ err = 0;
vlan_dev_get_realdev_name(dev, args.u.device2);
if (copy_to_user(arg, &args,
sizeof(struct vlan_ioctl_args))) {
break;
case GET_VLAN_VID_CMD:
+ err = 0;
vlan_dev_get_vid(dev, &vid);
args.u.VID = vid;
if (copy_to_user(arg, &args,
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