diff options
| author | Justin Cormack <justin@myriabit.com> | 2015-05-11 20:00:10 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-12 23:01:01 -0400 |
| commit | b5082083392224eca4c46abde908ab0e4210510c (patch) | |
| tree | 7f8014b9fc4998b43d207139f09a5d0ead691ac6 /drivers/net/macvtap.c | |
| parent | a62b70ddd13993e3706acf3021bf2680461195f4 (diff) | |
| download | linux-b5082083392224eca4c46abde908ab0e4210510c.tar.bz2 | |
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.c | 29 |
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; } |