aboutsummaryrefslogtreecommitdiff
path: root/net/8021q/vlan.c
diff options
context:
space:
mode:
authorPatrick McHardy <kaber@trash.net>2007-07-11 19:42:31 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-11 19:45:36 -0700
commit0e06877c6fdbc67b1132be895f995acd1ff30135 (patch)
treeddaba8cddc8a95d23ee18f812c6aba67dd9b1c6f /net/8021q/vlan.c
parent2d85cba2b272a5201a60966a65a4f8c0bcc0bb71 (diff)
[RTNETLINK]: rtnl_link: allow specifying initial device address
Drivers need to validate the initial addresses in their netlink attribute validation function or manually reject them if they can't support this. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r--net/8021q/vlan.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 34c1d0b241c..abb9900edb3 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -324,8 +324,10 @@ static int vlan_dev_init(struct net_device *dev)
(1<<__LINK_STATE_DORMANT))) |
(1<<__LINK_STATE_PRESENT);
- memcpy(dev->broadcast, real_dev->broadcast, real_dev->addr_len);
- memcpy(dev->dev_addr, real_dev->dev_addr, 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;
@@ -373,6 +375,8 @@ void vlan_setup(struct net_device *new_dev)
new_dev->set_multicast_list = vlan_dev_set_multicast_list;
new_dev->destructor = free_netdev;
new_dev->do_ioctl = vlan_dev_ioctl;
+
+ memset(new_dev->broadcast, 0, sizeof(ETH_ALEN));
}
static void vlan_transfer_operstate(const struct net_device *dev, struct net_device *vlandev)