[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>
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;