commit bada339ba24dee9e143bfb42e1dc61f146619846
author Jeff Garzik <jgarzik@redhat.com> Tue Oct 23 20:19:37 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Tue Oct 23 21:27:50 2007 -0700
tree 69e14af15764a1b38d61cd1f0b55560e45779f23
parent c9927c2bf4f45bb85e8b502ab3fb79ad6483c244

[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>

net/ethernet/eth.c

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index ed8a3d4..6b2e454 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -298,6 +298,14 @@
 	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 @@
 
 	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;