struct fasync_struct *fasync;
/* only used for fasnyc */
unsigned int flags;
- u16 queue_index;
+ union {
+ u16 queue_index;
+ unsigned int ifindex;
+ };
struct list_head next;
struct tun_struct *detached;
};
dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
+ dev->ifindex = tfile->ifindex;
tun = netdev_priv(dev);
tun->dev = dev;
kgid_t group;
int sndbuf;
int vnet_hdr_sz;
+ unsigned int ifindex;
int ret;
if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
ret = -EFAULT;
goto unlock;
}
+ if (cmd == TUNSETIFINDEX) {
+ ret = -EPERM;
+ if (tun)
+ goto unlock;
+
+ ret = -EFAULT;
+ if (copy_from_user(&ifindex, argp, sizeof(ifindex)))
+ goto unlock;
+
+ ret = 0;
+ tfile->ifindex = ifindex;
+ goto unlock;
+ }
ret = -EBADFD;
if (!tun)
rcu_assign_pointer(tfile->tun, NULL);
tfile->net = get_net(current->nsproxy->net_ns);
tfile->flags = 0;
+ tfile->ifindex = 0;
rcu_assign_pointer(tfile->socket.wq, &tfile->wq);
init_waitqueue_head(&tfile->wq.wait);