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[VLAN]: Allow setting mac address while device is up 

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-11-10 21:52:35 -08:00 committed by David S. Miller
parent d932e04a5e
commit 39aaac114e
3 changed files with 28 additions and 0 deletions
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1
net/8021q/vlan.c
View File

@ -376,6 +376,7 @@ void vlan_setup(struct net_device *new_dev)
new_dev->init = vlan_dev_init;
new_dev->open = vlan_dev_open;
new_dev->stop = vlan_dev_stop;
new_dev->set_mac_address = vlan_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;

1
net/8021q/vlan.h
View File

@ -60,6 +60,7 @@ int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev
int vlan_dev_change_mtu(struct net_device *dev, int new_mtu);
int vlan_dev_open(struct net_device* dev);
int vlan_dev_stop(struct net_device* dev);
int vlan_set_mac_address(struct net_device *dev, void *p);
int vlan_dev_ioctl(struct net_device* dev, struct ifreq *ifr, int cmd);
void vlan_dev_set_ingress_priority(const struct net_device *dev,
u32 skb_prio, short vlan_prio);

26
net/8021q/vlan_dev.c
View File

@ -665,6 +665,32 @@ int vlan_dev_stop(struct net_device *dev)
return 0;
}
int vlan_set_mac_address(struct net_device *dev, void *p)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
struct sockaddr *addr = p;
int err;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
if (!(dev->flags & IFF_UP))
goto out;
if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
err = dev_unicast_add(real_dev, addr->sa_data, ETH_ALEN);
if (err < 0)
return err;
}
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
dev_unicast_delete(real_dev, dev->dev_addr, ETH_ALEN);
out:
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
return 0;
}
int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;