diff options
| author | Jeff Garzik <jgarzik@redhat.com> | 2007-10-23 20:19:37 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-23 21:27:50 -0700 |
| commit | bada339ba24dee9e143bfb42e1dc61f146619846 (patch) | |
| tree | 69e14af15764a1b38d61cd1f0b55560e45779f23 /net/ethernet | |
| parent | c9927c2bf4f45bb85e8b502ab3fb79ad6483c244 (diff) | |
| download | lwn-bada339ba24dee9e143bfb42e1dc61f146619846.tar.gz lwn-bada339ba24dee9e143bfb42e1dc61f146619846.zip | |
[NET]: Validate device addr prior to interface-up
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethernet')
| -rw-r--r-- | net/ethernet/eth.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index ed8a3d49487d..6b2e454ae313 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -298,6 +298,14 @@ static int eth_change_mtu(struct net_device *dev, int new_mtu) return 0; } +static int eth_validate_addr(struct net_device *dev) +{ + if (!is_valid_ether_addr(dev->dev_addr)) + return -EINVAL; + + return 0; +} + const struct header_ops eth_header_ops ____cacheline_aligned = { .create = eth_header, .parse = eth_header_parse, @@ -317,6 +325,7 @@ void ether_setup(struct net_device *dev) dev->change_mtu = eth_change_mtu; dev->set_mac_address = eth_mac_addr; + dev->validate_addr = eth_validate_addr; dev->type = ARPHRD_ETHER; dev->hard_header_len = ETH_HLEN; |