diff options
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r-- | drivers/net/tun.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 329d9fe..20db308 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -177,7 +177,7 @@ static struct net_device_stats *tun_net_stats(struct net_device *dev) static void tun_net_init(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); - + switch (tun->flags & TUN_TYPE_MASK) { case TUN_TUN_DEV: /* Point-to-Point TUN Device */ @@ -186,7 +186,7 @@ static void tun_net_init(struct net_device *dev) dev->mtu = 1500; /* Zero header length */ - dev->type = ARPHRD_NONE; + dev->type = ARPHRD_NONE; dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; dev->tx_queue_len = TUN_READQ_SIZE; /* We prefer our own queue length */ break; @@ -206,7 +206,7 @@ static void tun_net_init(struct net_device *dev) /* Poll */ static unsigned int tun_chr_poll(struct file *file, poll_table * wait) -{ +{ struct tun_struct *tun = file->private_data; unsigned int mask = POLLOUT | POLLWRNORM; @@ -216,7 +216,7 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait) DBG(KERN_INFO "%s: tun_chr_poll\n", tun->dev->name); poll_wait(file, &tun->read_wait, wait); - + if (!skb_queue_empty(&tun->readq)) mask |= POLLIN | POLLRDNORM; @@ -240,7 +240,7 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) align = NET_IP_ALIGN; - + if (!(skb = alloc_skb(len + align, GFP_KERNEL))) { tun->stats.rx_dropped++; return -ENOMEM; @@ -267,29 +267,29 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, if (tun->flags & TUN_NOCHECKSUM) skb->ip_summed = CHECKSUM_UNNECESSARY; - + netif_rx_ni(skb); tun->dev->last_rx = jiffies; - + tun->stats.rx_packets++; tun->stats.rx_bytes += len; return count; -} +} static inline size_t iov_total(const struct iovec *iv, unsigned long count) { unsigned long i; size_t len; - for (i = 0, len = 0; i < count; i++) + for (i = 0, len = 0; i < count; i++) len += iv[i].iov_len; return len; } /* Writev */ -static ssize_t tun_chr_writev(struct file * file, const struct iovec *iv, +static ssize_t tun_chr_writev(struct file * file, const struct iovec *iv, unsigned long count, loff_t *pos) { struct tun_struct *tun = file->private_data; @@ -303,7 +303,7 @@ static ssize_t tun_chr_writev(struct file * file, const struct iovec *iv, } /* Write */ -static ssize_t tun_chr_write(struct file * file, const char __user * buf, +static ssize_t tun_chr_write(struct file * file, const char __user * buf, size_t count, loff_t *pos) { struct iovec iv = { (void __user *) buf, count }; @@ -326,11 +326,11 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun, /* Packet will be striped */ pi.flags |= TUN_PKT_STRIP; } - + if (memcpy_toiovec(iv, (void *) &pi, sizeof(pi))) return -EFAULT; total += sizeof(pi); - } + } len = min_t(int, skb->len, len); @@ -427,7 +427,7 @@ static ssize_t tun_chr_readv(struct file *file, const struct iovec *iv, } /* Read */ -static ssize_t tun_chr_read(struct file * file, char __user * buf, +static ssize_t tun_chr_read(struct file * file, char __user * buf, size_t count, loff_t *pos) { struct iovec iv = { buf, count }; @@ -480,8 +480,8 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr) if (tun->owner != -1 && current->euid != tun->owner && !capable(CAP_NET_ADMIN)) return -EPERM; - } - else if (__dev_get_by_name(ifr->ifr_name)) + } + else if (__dev_get_by_name(ifr->ifr_name)) return -EINVAL; else { char *name; @@ -501,9 +501,9 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr) /* TAP device */ flags |= TUN_TAP_DEV; name = "tap%d"; - } else + } else goto failed; - + if (*ifr->ifr_name) name = ifr->ifr_name; @@ -533,7 +533,7 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr) err = register_netdevice(tun->dev); if (err < 0) goto err_free_dev; - + list_add(&tun->list, &tun_dev_list); } @@ -557,7 +557,7 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr) return err; } -static int tun_chr_ioctl(struct inode *inode, struct file *file, +static int tun_chr_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct tun_struct *tun = file->private_data; @@ -711,14 +711,14 @@ static int tun_chr_fasync(int fd, struct file *file, int on) DBG(KERN_INFO "%s: tun_chr_fasync %d\n", tun->dev->name, on); if ((ret = fasync_helper(fd, file, on, &tun->fasync)) < 0) - return ret; - + return ret; + if (on) { ret = f_setown(file, current->pid, 0); if (ret) return ret; tun->flags |= TUN_FASYNC; - } else + } else tun->flags &= ~TUN_FASYNC; return 0; @@ -762,7 +762,7 @@ static int tun_chr_close(struct inode *inode, struct file *file) } static struct file_operations tun_fops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, .llseek = no_llseek, .read = tun_chr_read, .readv = tun_chr_readv, @@ -772,7 +772,7 @@ static struct file_operations tun_fops = { .ioctl = tun_chr_ioctl, .open = tun_chr_open, .release = tun_chr_close, - .fasync = tun_chr_fasync + .fasync = tun_chr_fasync }; static struct miscdevice tun_miscdev = { @@ -883,7 +883,7 @@ static void tun_cleanup(void) { struct tun_struct *tun, *nxt; - misc_deregister(&tun_miscdev); + misc_deregister(&tun_miscdev); rtnl_lock(); list_for_each_entry_safe(tun, nxt, &tun_dev_list, list) { @@ -891,7 +891,7 @@ static void tun_cleanup(void) unregister_netdevice(tun->dev); } rtnl_unlock(); - + } module_init(tun_init); |