[PATCH] fix tuntap oversight

[Jeremy Martin <martinjd@csc.uvic.ca>]

Hi everyone,

This 2.6.5 patch for the universal tuntap driver allows setting the MAC
address via ifconfig(8).  

I'm not subscribed to netdev so if you could CC me that'd be awesome.

-Jeremy

Patch contents:

-- CUT HERE --

===== drivers/net/tun.c 1.33 vs edited =====
--- 1.33/drivers/net/tun.c	Mon Mar 15 12:45:05 2004
+++ edited/drivers/net/tun.c	Sun Apr 11 22:39:06 2004
@@ -117,6 +117,15 @@
 	return &tun->stats;
 }
 
+static int tun_mac_addr(struct net_device *dev, void *p)
+{
+	struct sockaddr *addr=p;
+	if (netif_running(dev))
+		return -EBUSY;
+	memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
+	return 0;
+}
+
 /* Initialize net device. */
 static void tun_net_init(struct net_device *dev)
 {
@@ -138,6 +147,7 @@
 	case TUN_TAP_DEV:
 		/* Ethernet TAP Device */
 		dev->set_multicast_list = tun_net_mclist;
+		dev->set_mac_address = tun_mac_addr;
 
 		/* Generate random Ethernet address.  */
 		*(u16 *)dev->dev_addr = htons(0x00FF);