diff options
| author | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:11:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:11:50 -0700 |
| commit | 48467641bcc057f7cba3b6cbbe66cb834d64cc81 (patch) | |
| tree | f7c5c5e964c220de30fcdcd06b0f1efdb3e22439 /drivers/net/tun.c | |
| parent | 3863e72414fa2ebf5f3b615d1bf99de32e59980a (diff) | |
| parent | d70063c4634af060a5387337b7632f6334ca3458 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index effab0b9adc..50b8c6754b1 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -18,6 +18,9 @@ /* * Changes: * + * Mike Kershaw <dragorn@kismetwireless.net> 2005/08/14 + * Add TUNSETLINK ioctl to set the link encapsulation + * * Mark Smith <markzzzsmith@yahoo.com.au> * Use random_ether_addr() for tap MAC address. * @@ -612,6 +615,18 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, DBG(KERN_INFO "%s: owner set to %d\n", tun->dev->name, tun->owner); break; + case TUNSETLINK: + /* Only allow setting the type when the interface is down */ + if (tun->dev->flags & IFF_UP) { + DBG(KERN_INFO "%s: Linktype set failed because interface is up\n", + tun->dev->name); + return -EBUSY; + } else { + tun->dev->type = (int) arg; + DBG(KERN_INFO "%s: linktype set to %d\n", tun->dev->name, tun->dev->type); + } + break; + #ifdef TUN_DEBUG case TUNSETDEBUG: tun->debug = arg; |