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| author |   Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:36:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:36:55 +0200 |
| commit | f6477cc76c73833a56e97f1fafc36a7ca92927e5 (patch) | |
| tree | 9b4ca3d9fa63ea001d516834c8b2707094f3f711 /drivers/net/tun.c | |
| parent | Merge branch 'linus' into x86/timers (diff) | |
| parent | Linux 2.6.26-rc8 (diff) | |
| download | linux-dev-f6477cc76c73833a56e97f1fafc36a7ca92927e5.tar.xz linux-dev-f6477cc76c73833a56e97f1fafc36a7ca92927e5.zip | |
Merge branch 'linus' into x86/timers
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 0ce07a339c7e..7ab94c825b57 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -313,6 +313,21 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, switch (tun->flags & TUN_TYPE_MASK) { case TUN_TUN_DEV: + if (tun->flags & TUN_NO_PI) { + switch (skb->data[0] & 0xf0) { + case 0x40: + pi.proto = htons(ETH_P_IP); + break; + case 0x60: + pi.proto = htons(ETH_P_IPV6); + break; + default: + tun->dev->stats.rx_dropped++; + kfree_skb(skb); + return -EINVAL; + } + } + skb_reset_mac_header(skb); skb->protocol = pi.proto; skb->dev = tun->dev; |