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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-14 21:37:28 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-14 21:37:28 +0400 |
commit | d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b (patch) | |
tree | c6c67d145771187b194d79d603742b31090a59d6 /drivers/net/tun.c | |
parent | b8cb48aae1b8c50b37dcb7710363aa69a7a0d9ca (diff) | |
parent | 13af7a6ea502fcdd4c0e3d7de6e332b102309491 (diff) | |
download | linux-d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits)
netxen: update copyright
netxen: fix tx timeout recovery
netxen: fix file firmware leak
netxen: improve pci memory access
netxen: change firmware write size
tg3: Fix return ring size breakage
netxen: build fix for INET=n
cdc-phonet: autoconfigure Phonet address
Phonet: back-end for autoconfigured addresses
Phonet: fix netlink address dump error handling
ipv6: Add IFA_F_DADFAILED flag
net: Add DEVTYPE support for Ethernet based devices
mv643xx_eth.c: remove unused txq_set_wrr()
ucc_geth: Fix hangs after switching from full to half duplex
ucc_geth: Rearrange some code to avoid forward declarations
phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs
drivers/net/phy: introduce missing kfree
drivers/net/wan: introduce missing kfree
net: force bridge module(s) to be GPL
Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded
...
Fixed up trivial conflicts:
- arch/x86/include/asm/socket.h
converted to <asm-generic/socket.h> in the x86 tree. The generic
header has the same new #define's, so that works out fine.
- drivers/net/tun.c
fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that
switched over to using 'tun->socket.sk' instead of the redundantly
available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks
to the TUN driver") which added a new 'tun->sk' use.
Noted in 'next' by Stephen Rothwell.
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r-- | drivers/net/tun.c | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 87214a257d2a..3f5d28851aa2 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -103,13 +103,10 @@ struct tun_struct { uid_t owner; gid_t group; - struct sk_buff_head readq; - struct net_device *dev; struct fasync_struct *fasync; struct tap_filter txflt; - struct sock *sk; struct socket socket; #ifdef TUN_DEBUG @@ -148,7 +145,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) tfile->tun = tun; tun->tfile = tfile; dev_hold(tun->dev); - sock_hold(tun->sk); + sock_hold(tun->socket.sk); atomic_inc(&tfile->count); out: @@ -164,7 +161,7 @@ static void __tun_detach(struct tun_struct *tun) netif_tx_unlock_bh(tun->dev); /* Drop read queue */ - skb_queue_purge(&tun->readq); + skb_queue_purge(&tun->socket.sk->sk_receive_queue); /* Drop the extra count on the net device */ dev_put(tun->dev); @@ -333,7 +330,7 @@ static void tun_free_netdev(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); - sock_put(tun->sk); + sock_put(tun->socket.sk); } /* Net device open. */ @@ -351,7 +348,7 @@ static int tun_net_close(struct net_device *dev) } /* Net device start xmit */ -static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@ -367,7 +364,7 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) if (!check_filter(&tun->txflt, skb)) goto drop; - if (skb_queue_len(&tun->readq) >= dev->tx_queue_len) { + if (skb_queue_len(&tun->socket.sk->sk_receive_queue) >= dev->tx_queue_len) { if (!(tun->flags & TUN_ONE_QUEUE)) { /* Normal queueing mode. */ /* Packet scheduler handles dropping of further packets. */ @@ -384,19 +381,19 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) } /* Enqueue packet */ - skb_queue_tail(&tun->readq, skb); + skb_queue_tail(&tun->socket.sk->sk_receive_queue, skb); dev->trans_start = jiffies; /* Notify and wake up reader process */ if (tun->flags & TUN_FASYNC) kill_fasync(&tun->fasync, SIGIO, POLL_IN); wake_up_interruptible(&tun->socket.wait); - return 0; + return NETDEV_TX_OK; drop: dev->stats.tx_dropped++; kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } static void tun_net_mclist(struct net_device *dev) @@ -485,13 +482,13 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait) if (!tun) return POLLERR; - sk = tun->sk; + sk = tun->socket.sk; DBG(KERN_INFO "%s: tun_chr_poll\n", tun->dev->name); poll_wait(file, &tun->socket.wait, wait); - if (!skb_queue_empty(&tun->readq)) + if (!skb_queue_empty(&sk->sk_receive_queue)) mask |= POLLIN | POLLRDNORM; if (sock_writeable(sk) || @@ -512,7 +509,7 @@ static inline struct sk_buff *tun_alloc_skb(struct tun_struct *tun, size_t prepad, size_t len, size_t linear, int noblock) { - struct sock *sk = tun->sk; + struct sock *sk = tun->socket.sk; struct sk_buff *skb; int err; @@ -634,6 +631,9 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, case VIRTIO_NET_HDR_GSO_TCPV6: skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; break; + case VIRTIO_NET_HDR_GSO_UDP: + skb_shinfo(skb)->gso_type = SKB_GSO_UDP; + break; default: tun->dev->stats.rx_frame_errors++; kfree_skb(skb); @@ -719,6 +719,8 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun, gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV4; else if (sinfo->gso_type & SKB_GSO_TCPV6) 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(); if (sinfo->gso_type & SKB_GSO_TCP_ECN) @@ -775,7 +777,7 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv, current->state = TASK_INTERRUPTIBLE; /* Read frames from the queue */ - if (!(skb=skb_dequeue(&tun->readq))) { + if (!(skb=skb_dequeue(&tun->socket.sk->sk_receive_queue))) { if (file->f_flags & O_NONBLOCK) { ret = -EAGAIN; break; @@ -812,8 +814,6 @@ static void tun_setup(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); - skb_queue_head_init(&tun->readq); - tun->owner = -1; tun->group = -1; @@ -934,7 +934,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) (tun->group != -1 && !in_egroup_p(tun->group))) && !capable(CAP_NET_ADMIN)) return -EPERM; - err = security_tun_dev_attach(tun->sk); + err = security_tun_dev_attach(tun->socket.sk); if (err < 0) return err; @@ -992,7 +992,6 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) sk->sk_write_space = tun_sock_write_space; sk->sk_sndbuf = INT_MAX; - tun->sk = sk; container_of(sk, struct tun_sock, sk)->tun = tun; security_tun_dev_post_create(sk); @@ -1005,7 +1004,6 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) goto err_free_sk; } - err = -EINVAL; err = register_netdevice(tun->dev); if (err < 0) goto err_free_sk; @@ -1077,7 +1075,8 @@ static int set_offload(struct net_device *dev, unsigned long arg) old_features = dev->features; /* Unset features, set them as we chew on the arg. */ features = (old_features & ~(NETIF_F_HW_CSUM|NETIF_F_SG|NETIF_F_FRAGLIST - |NETIF_F_TSO_ECN|NETIF_F_TSO|NETIF_F_TSO6)); + |NETIF_F_TSO_ECN|NETIF_F_TSO|NETIF_F_TSO6 + |NETIF_F_UFO)); if (arg & TUN_F_CSUM) { features |= NETIF_F_HW_CSUM|NETIF_F_SG|NETIF_F_FRAGLIST; @@ -1094,6 +1093,11 @@ static int set_offload(struct net_device *dev, unsigned long arg) features |= NETIF_F_TSO6; arg &= ~(TUN_F_TSO4|TUN_F_TSO6); } + + if (arg & TUN_F_UFO) { + features |= NETIF_F_UFO; + arg &= ~TUN_F_UFO; + } } /* This gives the user a way to test for new features in future by @@ -1247,7 +1251,7 @@ static long tun_chr_ioctl(struct file *file, unsigned int cmd, break; case TUNGETSNDBUF: - sndbuf = tun->sk->sk_sndbuf; + sndbuf = tun->socket.sk->sk_sndbuf; if (copy_to_user(argp, &sndbuf, sizeof(sndbuf))) ret = -EFAULT; break; @@ -1258,7 +1262,7 @@ static long tun_chr_ioctl(struct file *file, unsigned int cmd, break; } - tun->sk->sk_sndbuf = sndbuf; + tun->socket.sk->sk_sndbuf = sndbuf; break; default: @@ -1341,7 +1345,7 @@ static int tun_chr_close(struct inode *inode, struct file *file) tun = tfile->tun; if (tun) - sock_put(tun->sk); + sock_put(tun->socket.sk); put_net(tfile->net); kfree(tfile); |