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authorJustin Cormack <justin@myriabit.com>2015-05-11 20:00:10 +0100
committerDavid S. Miller <davem@davemloft.net>2015-05-12 23:01:01 -0400
commitb5082083392224eca4c46abde908ab0e4210510c (patch)
tree7f8014b9fc4998b43d207139f09a5d0ead691ac6 /drivers/net/macvtap.c
parenta62b70ddd13993e3706acf3021bf2680461195f4 (diff)
macvtap add missing ioctls - fix wrapping
The macvtap driver tries to emulate all the ioctls supported by a normal tun/tap driver, however it was missing the generic SIOCGIFHWADDR and SIOCSIFHWADDR ioctls to get and set the mac address that are supported by tun/tap. This patch adds these. Signed-off-by: Justin Cormack <justin@netbsd.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvtap.c')
-rw-r--r--drivers/net/macvtap.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 0398631a3c24..c8a23896d54e 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1101,6 +1101,35 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
rtnl_unlock();
return ret;
+ case SIOCGIFHWADDR:
+ rtnl_lock();
+ vlan = macvtap_get_vlan(q);
+ if (!vlan) {
+ rtnl_unlock();
+ return -ENOLINK;
+ }
+ ret = 0;
+ u = vlan->dev->type;
+ if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
+ copy_to_user(&ifr->ifr_hwaddr.sa_data, vlan->dev->dev_addr, ETH_ALEN) ||
+ put_user(u, &ifr->ifr_hwaddr.sa_family))
+ ret = -EFAULT;
+ macvtap_put_vlan(vlan);
+ rtnl_unlock();
+ return ret;
+
+ case SIOCSIFHWADDR:
+ rtnl_lock();
+ vlan = macvtap_get_vlan(q);
+ if (!vlan) {
+ rtnl_unlock();
+ return -ENOLINK;
+ }
+ ret = dev_set_mac_address(vlan->dev, &ifr->ifr_hwaddr);
+ macvtap_put_vlan(vlan);
+ rtnl_unlock();
+ return ret;
+
default:
return -EINVAL;
}