diff options
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 6ad6fe70631..55f3a3e667a 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -149,6 +149,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) tfile->tun = tun; tun->tfile = tfile; tun->socket.file = file; + netif_carrier_on(tun->dev); dev_hold(tun->dev); sock_hold(tun->socket.sk); atomic_inc(&tfile->count); @@ -162,6 +163,7 @@ static void __tun_detach(struct tun_struct *tun) { /* Detach from net device */ netif_tx_lock_bh(tun->dev); + netif_carrier_off(tun->dev); tun->tfile = NULL; tun->socket.file = NULL; netif_tx_unlock_bh(tun->dev); @@ -736,8 +738,18 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun, gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV6; else if (sinfo->gso_type & SKB_GSO_UDP) gso.gso_type = VIRTIO_NET_HDR_GSO_UDP; - else - BUG(); + else { + printk(KERN_ERR "tun: unexpected GSO type: " + "0x%x, gso_size %d, hdr_len %d\n", + sinfo->gso_type, gso.gso_size, + gso.hdr_len); + print_hex_dump(KERN_ERR, "tun: ", + DUMP_PREFIX_NONE, + 16, 1, skb->head, + min((int)gso.hdr_len, 64), true); + WARN_ON_ONCE(1); + return -EINVAL; + } if (sinfo->gso_type & SKB_GSO_TCP_ECN) gso.gso_type |= VIRTIO_NET_HDR_GSO_ECN; } else @@ -1564,12 +1576,6 @@ static void tun_set_msglevel(struct net_device *dev, u32 value) #endif } -static u32 tun_get_link(struct net_device *dev) -{ - struct tun_struct *tun = netdev_priv(dev); - return !!tun->tfile; -} - static u32 tun_get_rx_csum(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@ -1591,7 +1597,7 @@ static const struct ethtool_ops tun_ethtool_ops = { .get_drvinfo = tun_get_drvinfo, .get_msglevel = tun_get_msglevel, .set_msglevel = tun_set_msglevel, - .get_link = tun_get_link, + .get_link = ethtool_op_get_link, .get_rx_csum = tun_get_rx_csum, .set_rx_csum = tun_set_rx_csum }; |