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| author | Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:28:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:28:47 +0200 |
| commit | f4628e644c34d9e6242ea18487b2ed58ee04e3eb (patch) | |
| tree | 3e1cd355fb6959d5b9f569342e4533a48e53aa11 /drivers/net/tun.c | |
| parent | cb9aa97c21c59ad01c9514d7faf45dc166fba226 (diff) | |
| parent | 543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff) | |
Merge branch 'linus' into tracing/mmiotrace-mergefixupstip-tracing-mmiotrace-mergefixups-2008-06-25_10.28_Wed
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; |